/**
 * River Visual 3D Engine - Animations
 * Semua CSS animations untuk UI components
 * Port dari ModelViewerBACKUP.jsx
 */

/* Fade In Animation */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

/* Slide In From Left */
@keyframes slideInFromLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Slide In From Right */
@keyframes slideInFromRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Slide In From Bottom */
@keyframes slideInFromBottom {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Slide Up */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Toast Slide In */
@keyframes toastSlideIn {
  0% {
    opacity: 0;
    transform: translateX(-50%) translateY(-10px);
  }

  100% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* Pulse Animation (untuk recording indicator) */
@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.5;
  }
}

/* Pulse Glow (untuk outline/selection) */
@keyframes pulseGlow {

  0%,
  100% {
    opacity: 0.8;
  }

  50% {
    opacity: 0.4;
  }
}

/* Spin Animation (untuk loading) */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

/* Bounce Animation */
@keyframes bounce {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

/* Scale In */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Flash (untuk keyframe indicator) */
@keyframes flash {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(1.2);
  }
}

/* Shimmer (untuk loading skeleton) */
@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }

  100% {
    background-position: 1000px 0;
  }
}

/* Gradient Shift (untuk background) */
@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}

/* Progress Bar Fill */
@keyframes progressBarFill {
  from {
    width: 0%;
  }

  to {
    width: 100%;
  }
}

/* Fade Out */
@keyframes fadeOut {
  from {
    opacity: 1;
  }

  to {
    opacity: 0;
  }
}

/* Shake Animation (untuk error) */
@keyframes shake {

  0%,
  100% {
    transform: translateX(0);
  }

  10%,
  30%,
  50%,
  70%,
  90% {
    transform: translateX(-5px);
  }

  20%,
  40%,
  60%,
  80% {
    transform: translateX(5px);
  }
}

/* Glow Animation */
@keyframes glow {

  0%,
  100% {
    box-shadow: 0 0 5px rgba(59, 130, 246, 0.5);
  }

  50% {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.8);
  }
}

/* Rotate Slow (untuk icons) */
@keyframes rotateSlow {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

/* Heartbeat */
@keyframes heartbeat {

  0%,
  100% {
    transform: scale(1);
  }

  10%,
  30% {
    transform: scale(1.05);
  }

  20%,
  40% {
    transform: scale(1);
  }
}

/* Flash Pulse (untuk camera keyframe - new) */
@keyframes flashPulse {

  0%,
  100% {
    transform: translate(-50%, -50%) rotate(45deg) scale(1);
    box-shadow: 0 0 8px rgba(139, 92, 246, 0.6);
  }

  50% {
    transform: translate(-50%, -50%) rotate(45deg) scale(1.6);
    box-shadow: 0 0 20px rgba(139, 92, 246, 1);
  }
}

/* Update Pulse (untuk selected keyframe update) */
@keyframes updatePulse {

  0%,
  100% {
    transform: translate(-50%, -50%) rotate(45deg) scale(1.4);
    box-shadow: 0 0 12px rgba(245, 158, 11, 0.9);
  }

  50% {
    transform: translate(-50%, -50%) rotate(45deg) scale(1.8);
    box-shadow: 0 0 24px rgba(245, 158, 11, 1);
  }
}

/* Slide In From Top (untuk UV edit overlay) */
@keyframes slideInFromTop {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-20px);
  }

  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* Delete Fade Out (untuk keyframe deletion animation) */
@keyframes deleteFadeOut {
  0% {
    opacity: 1;
    transform: translate(-50%, -50%) rotate(45deg) scale(1.4);
  }

  50% {
    transform: translate(-50%, -50%) rotate(225deg) scale(0.3);
  }

  100% {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(405deg) scale(0);
  }
}

/* Slide Up From Bottom (untuk mobile panel) */
@keyframes slideUpFromBottom {
  from {
    transform: translateY(100%);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Slide Down To Bottom (untuk mobile panel close) - ULTRA-SMOOTH */
@keyframes slideDownToBottom {
  from {
    transform: translateY(0);
    opacity: 1;
  }

  to {
    transform: translateY(100%);
    opacity: 0;
  }
}

/* Slide Down To Bottom - Desktop version (untuk smooth close) */
@keyframes slideDownToBottomDesktop {
  from {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
  }

  to {
    transform: translateX(-50%) translateY(20px);
    opacity: 0;
  }
}

/* Slide Out To Left (untuk desktop panel close) */
@keyframes slideOutToLeft {
  from {
    transform: translateX(0);
    opacity: 1;
  }

  to {
    transform: translateX(-20px);
    opacity: 0;
  }
}

/* Slide Out To Right (untuk desktop panel close) */
@keyframes slideOutToRight {
  from {
    transform: translateX(0);
    opacity: 1;
  }

  to {
    transform: translateX(20px);
    opacity: 0;
  }
}.loading-progress-overlay {
    --overlay-bg: #111926;
    --accent: #3d99ff;
    --accent-soft: rgba(61, 153, 255, 0.38);
    --card-border: color-mix(in srgb, var(--rv-liquid-glass-border, rgba(255, 255, 255, 0.18)) 95%, transparent);
    --card-border-strong: color-mix(in srgb, var(--rv-liquid-glass-border-strong, rgba(255, 255, 255, 0.24)) 88%, transparent);
    --card-bg: var(--rv-liquid-glass-bg, linear-gradient(155deg, rgba(255, 255, 255, 0.18) 0%, rgba(255, 255, 255, 0.07) 100%));
    --card-shadow: var(--rv-liquid-glass-shadow, 0 30px 85px rgba(0, 0, 0, 0.5));
    --text-main: var(--rv-liquid-text-primary, #f3f7ff);
    --text-subtle: color-mix(in srgb, var(--rv-liquid-text-secondary, #e3ecff) 90%, transparent);
    --text-muted: color-mix(in srgb, var(--rv-liquid-text-muted, #cad9ef) 90%, transparent);
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background:
        radial-gradient(circle at 10% 12%, rgba(61, 153, 255, 0.22), transparent 42%),
        radial-gradient(circle at 88% 14%, rgba(87, 145, 236, 0.2), transparent 46%),
        linear-gradient(132deg, #0f1722 0%, var(--overlay-bg) 45%, #121c2a 100%);
    animation: overlayIntro 0.45s ease both;
    font-family: var(--rv-font-sans, "Open Sans", "Segoe UI", Arial, sans-serif);
}

.loading-bg-aurora,
.loading-bg-ambient,
.loading-bg-noise,
.loading-ghost-layer,
.loading-ripple {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.loading-bg-aurora {
    inset: -14%;
    filter: blur(48px);
    opacity: 0.56;
    animation: auroraSweep 22s ease-in-out infinite alternate;
}

.loading-bg-aurora-orb {
    position: absolute;
    width: 60vmax;
    height: 60vmax;
    border-radius: 50%;
    transform: translate3d(0, 0, 0) scale(1);
    will-change: transform, opacity;
}

.aurora-orb-a {
    left: -10vmax;
    top: -6vmax;
    background: radial-gradient(circle, rgba(84, 171, 255, 0.2) 0%, rgba(84, 171, 255, 0) 70%);
    animation: auroraDriftA 18s ease-in-out infinite alternate;
}

.aurora-orb-b {
    right: -14vmax;
    top: 24%;
    background: radial-gradient(circle, rgba(57, 146, 255, 0.18) 0%, rgba(57, 146, 255, 0) 72%);
    animation: auroraDriftB 24s ease-in-out infinite alternate;
}

.aurora-orb-c {
    left: 24%;
    bottom: -24vmax;
    background: radial-gradient(circle, rgba(108, 219, 240, 0.14) 0%, rgba(108, 219, 240, 0) 70%);
    animation: auroraDriftC 21s ease-in-out infinite alternate;
}

.loading-bg-ambient {
    background:
        radial-gradient(circle at 20% 74%, rgba(101, 179, 255, 0.16), transparent 36%),
        radial-gradient(circle at 82% 84%, rgba(73, 209, 255, 0.14), transparent 42%);
    filter: blur(34px);
    transform: scale(1.04);
    animation: ambientPulse 9s ease-in-out infinite alternate;
}

.loading-bg-noise {
    opacity: 0.2;
    background-image:
        radial-gradient(rgba(255, 255, 255, 0.08) 0.5px, transparent 0.5px),
        radial-gradient(rgba(255, 255, 255, 0.04) 0.5px, transparent 0.5px);
    background-size: 3px 3px, 6px 6px;
    background-position: 0 0, 1px 1px;
}

.loading-ghost-layer {
    backdrop-filter: blur(16px) saturate(120%);
    -webkit-backdrop-filter: blur(16px) saturate(120%);
    isolation: isolate;
}

.loading-ghost-block {
    position: absolute;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: linear-gradient(130deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.04) 100%);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.12),
        0 8px 24px rgba(0, 0, 0, 0.18),
        0 0 22px rgba(73, 209, 255, 0.06);
    filter: blur(1.8px) saturate(108%);
    transform: translateZ(0);
    animation: ghostFloat 8s ease-in-out infinite alternate;
}

.loading-ghost-block::after {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    background: radial-gradient(circle at 50% 50%, rgba(172, 223, 255, 0.18) 0%, transparent 72%);
    opacity: 0.45;
    pointer-events: none;
}

.loading-ghost-block.line {
    border-color: rgba(160, 218, 255, 0.1);
    filter: blur(2.5px) saturate(106%);
    opacity: 0.85;
}

.loading-ghost-block.blob {
    background: linear-gradient(145deg, rgba(130, 202, 255, 0.12) 0%, rgba(255, 255, 255, 0.04) 100%);
    filter: blur(2.1px) saturate(112%);
}

.loading-ghost-block.panel {
    filter: blur(1.4px) saturate(106%);
}

.loading-progress-container {
    position: relative;
    width: min(92vw, 580px);
    padding: 28px 32px 24px;
    border-radius: 28px;
    border: 1px solid var(--card-border);
    border-top-color: var(--card-border-strong);
    background: var(--card-bg);
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(28px) saturate(130%);
    -webkit-backdrop-filter: blur(28px) saturate(130%);
    transform: translateY(0);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.loading-main-zone {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.loading-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-bottom: 6px;
}

.loading-brand-copy {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 1px;
    text-align: left;
}

.loading-logo {
    width: 42px;
    height: 42px;
    object-fit: contain;
    filter: drop-shadow(0 6px 18px rgba(73, 209, 255, 0.3));
}

.loading-title {
    margin: 0;
    color: var(--text-main);
    font-size: 1.48rem;
    font-weight: 600;
    line-height: 1.08;
    letter-spacing: 0.002em;
}

.loading-subtitle {
    margin: 0;
    color: var(--text-subtle);
    font-size: 0.72rem;
    font-weight: 400;
    line-height: 1.28;
    letter-spacing: 0.004em;
}

.loading-phase {
    margin: 6px 0 0;
    color: var(--text-main);
    font-size: 0.97rem;
    letter-spacing: 0.01em;
    text-transform: none;
    font-weight: 600;
    opacity: 0.96;
}

.loading-phase--single-line {
    margin: 8px 0 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-subtle);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.loading-asset-name {
    margin: 0 0 16px;
    color: var(--text-subtle);
    font-size: 0.9rem;
    min-height: 20px;
    line-height: 1.4;
}

.progress-bar-wrapper {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.progress-bar-bg {
    position: relative;
    height: 12px;
    border-radius: 999px;
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--rv-liquid-glass-border-strong, rgba(255, 255, 255, 0.3)) 74%, transparent);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.03) 100%),
        color-mix(in srgb, var(--rv-liquid-glass-bg-card, rgba(27, 39, 55, 0.76)) 80%, transparent);
    box-shadow:
        inset 0 1px 1px rgba(255, 255, 255, 0.18),
        inset 0 -2px 4px rgba(5, 11, 18, 0.3);
}

.progress-bar-fill {
    position: relative;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #4ba3ff 0%, #3d99ff 52%, #74beff 100%);
    box-shadow:
        0 0 16px var(--accent-soft),
        0 0 0 1px rgba(152, 212, 255, 0.32) inset;
    transition: width 0.18s linear;
}

.progress-bar-fill.indeterminate {
    width: 44%;
    animation: indeterminateBar 1.35s ease-in-out infinite;
    will-change: transform;
    transform: translate3d(-90%, 0, 0);
}

.progress-bar-fill.indeterminate .progress-bar-glow {
    display: none;
}

.progress-bar-glow {
    position: absolute;
    top: 0;
    right: -64px;
    width: 64px;
    height: 100%;
    opacity: 0.4;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.62) 100%);
    filter: blur(3px);
}

.progress-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
    font-size: 0.82rem;
    line-height: 1.35;
}

.progress-percent {
    color: color-mix(in srgb, var(--accent) 60%, #bdefff 40%);
    font-weight: 600;
}

.progress-size {
    text-align: right;
}

.loading-fact-zone {
    border-top: 1px solid color-mix(in srgb, var(--rv-liquid-glass-border, rgba(255, 255, 255, 0.14)) 85%, transparent);
    margin-top: 0;
    padding-top: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition:
        max-height 0.42s ease,
        opacity 0.35s ease,
        margin-top 0.35s ease,
        padding-top 0.35s ease;
}

.loading-fact-zone.is-visible {
    margin-top: 16px;
    padding-top: 16px;
    max-height: 180px;
    opacity: 1;
}

.loading-fact-content {
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 0.32s ease, transform 0.32s ease;
}

.loading-fact-content.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.loading-fact-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.loading-fact-category {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    padding: 0 10px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    text-transform: none;
    border: 1px solid transparent;
}

.loading-fact-category.is-designer {
    color: #b7ebff;
    background: rgba(43, 147, 214, 0.17);
    border-color: rgba(129, 207, 255, 0.32);
}

.loading-fact-category.is-business {
    color: #c9ffe4;
    background: rgba(33, 168, 117, 0.16);
    border-color: rgba(118, 233, 180, 0.3);
}

.loading-fact-index {
    color: var(--text-muted);
    font-size: 0.74rem;
}

.loading-fact-text {
    margin: 10px 0 8px;
    color: color-mix(in srgb, var(--text-main) 92%, transparent);
    font-size: 0.87rem;
    line-height: 1.52;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.loading-fact-source {
    color: color-mix(in srgb, var(--accent) 56%, #9adfff 44%);
    font-size: 0.78rem;
    text-decoration: none;
    border-bottom: 1px solid rgba(143, 223, 255, 0.35);
    transition: color 0.2s ease, border-color 0.2s ease;
}

.loading-fact-source:hover {
    color: #b7ebff;
    border-color: rgba(183, 235, 255, 0.65);
}

.loading-ripple {
    opacity: 0;
}

.loading-progress-overlay.is-exiting {
    pointer-events: none;
    animation: overlayFadeOut 0.78s ease forwards;
}

.loading-progress-overlay.is-exiting .loading-progress-container {
    animation: cardFadeOut 0.62s ease forwards;
}

.loading-progress-overlay.is-exiting .loading-ripple {
    opacity: 1;
    background:
        radial-gradient(circle at 50% 52%, rgba(173, 226, 255, 0.34) 0%, rgba(173, 226, 255, 0.18) 8%, transparent 25%),
        radial-gradient(circle at 50% 52%, rgba(126, 184, 255, 0.32) 0%, transparent 38%);
    animation: rippleReveal 0.8s cubic-bezier(0.18, 0.62, 0.2, 1) forwards;
}

@keyframes overlayIntro {
    from {
        opacity: 0;
        transform: scale(1.01);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes auroraDriftA {
    from {
        transform: translate3d(0, 0, 0) scale(1);
        opacity: 0.62;
    }
    to {
        transform: translate3d(110px, -58px, 0) scale(1.14);
        opacity: 0.78;
    }
}

@keyframes auroraDriftB {
    from {
        transform: translate3d(0, 0, 0) scale(1.02);
        opacity: 0.56;
    }
    to {
        transform: translate3d(-130px, 66px, 0) scale(1.17);
        opacity: 0.72;
    }
}

@keyframes auroraDriftC {
    from {
        transform: translate3d(0, 0, 0) scale(0.98);
        opacity: 0.48;
    }
    to {
        transform: translate3d(90px, -120px, 0) scale(1.16);
        opacity: 0.68;
    }
}

@keyframes auroraSweep {
    from {
        transform: translate3d(-1.8%, -1.2%, 0) scale(1.01);
    }
    to {
        transform: translate3d(1.8%, 1.2%, 0) scale(1.06);
    }
}

@keyframes ambientPulse {
    from {
        transform: scale(1.02);
        opacity: 0.72;
    }
    to {
        transform: scale(1.08);
        opacity: 1;
    }
}

@keyframes ghostFloat {
    from {
        transform: translate3d(0, 0, 0) scale(1);
    }
    to {
        transform: translate3d(0, -4px, 0) scale(1.015);
    }
}

@keyframes indeterminateBar {
    0% {
        transform: translateX(-90%);
    }
    100% {
        transform: translateX(230%);
    }
}

@keyframes overlayFadeOut {
    to {
        opacity: 0;
        filter: blur(16px);
    }
}

@keyframes cardFadeOut {
    to {
        opacity: 0;
        transform: translateY(8px) scale(0.985);
        filter: blur(3px);
    }
}

@keyframes rippleReveal {
    0% {
        transform: scale(0.08);
        opacity: 0.8;
        filter: blur(2px);
    }
    100% {
        transform: scale(2.4);
        opacity: 0;
        filter: blur(16px);
    }
}

.loading-progress-overlay[data-theme='light'],
[data-theme='light'] .loading-progress-overlay {
    --overlay-bg: #eef2f7;
    --accent: #2d7fe8;
    --accent-soft: rgba(45, 127, 232, 0.28);
    --text-main: #223550;
    --text-subtle: #4f6788;
    --text-muted: #6f86a4;
}

[data-theme='light'] .loading-progress-overlay {
    background:
        radial-gradient(circle at 10% 12%, rgba(116, 174, 255, 0.24), transparent 42%),
        radial-gradient(circle at 88% 14%, rgba(83, 159, 255, 0.2), transparent 46%),
        linear-gradient(132deg, #f6f8fb 0%, var(--overlay-bg) 45%, #edf2f8 100%);
}

[data-theme='light'] .loading-bg-noise {
    opacity: 0.16;
}

[data-theme='light'] .loading-fact-category.is-designer {
    color: #2f5f94;
    background: rgba(67, 140, 214, 0.18);
    border-color: rgba(89, 145, 204, 0.28);
}

[data-theme='light'] .loading-fact-category.is-business {
    color: #2a7b5c;
    background: rgba(50, 168, 123, 0.16);
    border-color: rgba(65, 172, 133, 0.28);
}

[data-theme='light'] .loading-fact-source:hover {
    color: #1f66bf;
    border-color: rgba(31, 102, 191, 0.45);
}

@media (max-width: 640px) {
    .loading-progress-container {
        width: min(94vw, 560px);
        padding: 22px 20px 18px;
        border-radius: 24px;
    }

    .loading-logo {
        width: 34px;
        height: 34px;
    }

    .loading-title {
        font-size: 1.12rem;
    }

    .loading-subtitle {
        font-size: 0.66rem;
    }

    .loading-phase {
        font-size: 0.83rem;
    }

    .loading-asset-name {
        font-size: 0.8rem;
    }

    .progress-stats {
        font-size: 0.75rem;
    }

    .loading-fact-zone.is-visible {
        max-height: 220px;
    }

    .loading-fact-text {
        font-size: 0.82rem;
        -webkit-line-clamp: 2;
    }

    .loading-fact-source {
        font-size: 0.74rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .loading-progress-overlay,
    .loading-bg-aurora,
    .loading-bg-aurora-orb,
    .loading-bg-ambient,
    .loading-ghost-block,
    .progress-bar-fill.indeterminate,
    .loading-progress-overlay.is-exiting,
    .loading-progress-overlay.is-exiting .loading-progress-container,
    .loading-progress-overlay.is-exiting .loading-ripple {
        animation: none !important;
    }

    .loading-fact-zone,
    .loading-fact-content {
        transition: none !important;
    }

    .progress-bar-fill {
        transition: none;
    }
}
.virtual-canvas-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
}

.virtual-canvas-container {
    background: #1a1a1a;
    border: 1px solid #333;
    border-radius: 8px;
    position: relative;
    overflow: hidden;
    /* Max constraints - Aspect ratio handled via inline style */
    max-width: 80vw;
    max-height: 70vh;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.vc-canvas {
    width: 100%;
    height: 100%;
    display: block;
    cursor: grab;
}

.vc-canvas:active {
    cursor: grabbing;
}

.vc-grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.2;
    background-image:
        linear-gradient(#fff 1px, transparent 1px),
        linear-gradient(90deg, #fff 1px, transparent 1px);
    background-size: 33.33% 33.33%;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.vc-controls {
    margin-top: 20px;
    display: flex;
    gap: 10px;
    background: #2a2a2a;
    padding: 10px 20px;
    border-radius: 50px;
    border: 1px solid #444;
}

.vc-btn {
    background: transparent;
    border: none;
    color: #ccc;
    cursor: pointer;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
}

.vc-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.vc-btn.active {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    font-weight: 500;
}

.vc-btn-primary {
    background: #3b82f6;
    color: white;
}

.vc-btn-primary:hover {
    background: #2563eb;
}

.vc-btn-danger {
    color: #ef4444;
}

.vc-btn-danger:hover {
    background: rgba(239, 68, 68, 0.1);
}

/* Color Picker Styles */
.vc-color-picker-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    overflow: hidden;
    border-radius: 50%;
    border: 2px solid #555;
    cursor: pointer;
    transition: border-color 0.2s;
    background: #000;
}

.vc-color-picker-wrapper:hover {
    border-color: #fff;
}

.vc-color-input {
    width: 150%;
    height: 150%;
    border: none;
    padding: 0;
    margin: -25%;
    cursor: pointer;
    background: none;
}.rv-mobile-workspace {
  --rv-mobile-safe-bottom: env(safe-area-inset-bottom, 0px);
  --rv-mobile-max-height: calc(100vh - 24px - var(--rv-mobile-safe-bottom));
  --rv-mobile-max-height: calc(100dvh - 24px - var(--rv-mobile-safe-bottom));
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: calc(12px + var(--rv-mobile-safe-bottom));
  z-index: var(--rv-z-dock);
  display: flex;
  flex-direction: column;
  padding: 10px 12px calc(10px + var(--rv-mobile-safe-bottom));
  border-radius: 24px;
  border-top: 1px solid var(--rv-glass-border-strong);
  border-bottom: 1px solid var(--rv-glass-border-soft);
  overflow: hidden;
  overscroll-behavior: contain;
  max-height: var(--rv-mobile-max-height);
  transform: translateY(var(--rv-mobile-panel-drag-y, 0px));
  transition: height 220ms var(--rv-ease-emphasized), transform 180ms ease-out;
}

.rv-mobile-workspace--compact {
  height: min(calc(40vh - 12px), var(--rv-mobile-max-height));
  height: min(calc(40dvh - 12px), var(--rv-mobile-max-height));
}

.rv-mobile-workspace--detail {
  height: min(calc(56vh - 12px), var(--rv-mobile-max-height));
  height: min(calc(56dvh - 12px), var(--rv-mobile-max-height));
}

.rv-mobile-handle-zone {
  border: 0;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 0 2px 8px;
  color: var(--text-secondary);
}

.rv-mobile-drag-indicator {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 20px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--rv-glass-border-soft) 86%, transparent);
  background: color-mix(in srgb, var(--rv-glass-bg-2) 68%, transparent);
}

.rv-mobile-hint-row {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.rv-mobile-tab-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.rv-mobile-tab-row::-webkit-scrollbar {
  display: none;
}

.rv-mobile-tab-btn {
  border: 1px solid color-mix(in srgb, var(--rv-glass-border-soft) 90%, transparent);
  background: color-mix(in srgb, var(--rv-glass-bg-2) 72%, transparent);
  color: var(--text-secondary);
  border-radius: 999px;
  min-height: 32px;
  padding: 6px 10px;
  font-size: 11px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
  cursor: pointer;
}

.rv-mobile-tab-btn--active {
  color: var(--text-primary);
  border-color: color-mix(in srgb, var(--rv-color-accent-blue) 56%, transparent);
  background: color-mix(in srgb, var(--rv-color-accent-blue) 22%, transparent);
}

.rv-mobile-page-viewport {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  border-radius: 14px;
  background: color-mix(in srgb, var(--rv-glass-bg-1) 72%, transparent);
  border: 1px solid color-mix(in srgb, var(--rv-glass-border-soft) 75%, transparent);
}

.rv-mobile-page-track {
  display: flex;
  height: 100%;
  transition: transform 220ms var(--rv-ease-emphasized);
  will-change: transform;
}

.rv-mobile-page {
  width: 100%;
  flex: 0 0 100%;
  min-width: 100%;
  height: 100%;
  padding: 10px;
  padding-bottom: calc(14px + env(safe-area-inset-bottom, 0px));
  overflow-y: auto;
  overscroll-behavior-y: contain;
  touch-action: pan-y;
  -webkit-overflow-scrolling: touch;
}

.rv-mobile-page[aria-hidden='true'] {
  pointer-events: none;
}

.rv-mobile-tool-page-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 100%;
  padding-bottom: 10px;
}

.rv-mobile-core-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.rv-mobile-tool-copy {
  font-size: 12px;
  line-height: 1.45;
  color: var(--text-secondary);
}

.rv-mobile-tool-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.rv-mobile-tool-actions--inline {
  grid-template-columns: 1fr 1fr;
}

.rv-mobile-core-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.rv-mobile-core-label {
  font-size: 11px;
  color: var(--text-secondary);
}

.rv-mobile-input {
  width: 100%;
  min-height: 38px;
  border-radius: 10px;
  border: 1px solid color-mix(in srgb, var(--rv-glass-border-soft) 88%, transparent);
  background: color-mix(in srgb, var(--rv-glass-bg-2) 78%, transparent);
  color: var(--text-primary);
  padding: 8px 10px;
  font-size: 12px;
}

.rv-mobile-input--color {
  min-height: 38px;
  padding: 3px;
}

.rv-mobile-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.rv-mobile-chip {
  border: 1px solid color-mix(in srgb, var(--rv-glass-border-soft) 88%, transparent);
  background: color-mix(in srgb, var(--rv-glass-bg-2) 74%, transparent);
  color: var(--text-secondary);
  border-radius: 999px;
  min-height: 30px;
  padding: 6px 10px;
  font-size: 11px;
  font-weight: 600;
}

.rv-mobile-chip--active {
  color: var(--text-primary);
  border-color: color-mix(in srgb, var(--rv-color-accent-blue) 58%, transparent);
  background: color-mix(in srgb, var(--rv-color-accent-blue) 24%, transparent);
}

.rv-mobile-history-row {
  display: flex;
  gap: 8px;
}

@media (max-height: 760px) {
  .rv-mobile-workspace--compact {
    height: min(calc(44vh - 12px), var(--rv-mobile-max-height));
    height: min(calc(44dvh - 12px), var(--rv-mobile-max-height));
  }

  .rv-mobile-workspace--detail {
    height: min(calc(60vh - 12px), var(--rv-mobile-max-height));
    height: min(calc(60dvh - 12px), var(--rv-mobile-max-height));
  }
}
/* Global styles for River Visual 3D Engine */

:root {
  --rv-font-sans: "Open Sans", "Segoe UI", Arial, sans-serif;

  /* River Visual foundation tokens */
  --rv-color-text-primary: #f5f7fb;
  --rv-color-text-secondary: #c9d1dc;
  --rv-color-text-muted: #98a4b3;
  --rv-color-accent-blue: #4d9dff;
  --rv-color-accent-green: #34d399;
  --rv-color-accent-amber: #fbbf24;
  --rv-color-accent-red: #f87171;

  --rv-glass-bg-1: rgba(14, 18, 26, 0.72);
  --rv-glass-bg-2: rgba(22, 27, 38, 0.78);
  --rv-glass-bg-3: rgba(29, 36, 50, 0.84);
  --rv-glass-border-soft: rgba(235, 241, 255, 0.15);
  --rv-glass-border-strong: rgba(235, 241, 255, 0.26);
  --rv-glass-highlight: rgba(255, 255, 255, 0.2);
  --rv-glass-shadow-1: 0 8px 24px rgba(3, 8, 20, 0.38);
  --rv-glass-shadow-2: 0 3px 10px rgba(3, 8, 20, 0.22);
  --rv-glass-blur-sm: 12px;
  --rv-glass-blur-md: 20px;
  --rv-glass-blur-lg: 24px;
  --rv-glass-saturate: 180%;

  --rv-radius-xs: 6px;
  --rv-radius-sm: 10px;
  --rv-radius-md: 14px;
  --rv-radius-lg: 18px;
  --rv-radius-pill: 999px;

  --rv-space-1: 4px;
  --rv-space-2: 8px;
  --rv-space-3: 12px;
  --rv-space-4: 16px;
  --rv-space-5: 20px;

  --rv-ease-standard: cubic-bezier(0.2, 0.8, 0.2, 1);
  --rv-ease-emphasized: cubic-bezier(0.32, 0.72, 0, 1);
  --rv-dur-fast: 120ms;
  --rv-dur-base: 180ms;
  --rv-dur-slow: 280ms;

  --rv-z-canvas: 1;
  --rv-z-overlay: 10;
  --rv-z-dock: 20;
  --rv-z-panel: 30;
  --rv-z-rail: 40;
  --rv-z-header: 50;
  --rv-z-modal: 60;
  --rv-z-toast: 70;

  --rv-focus-ring: 0 0 0 2px rgba(77, 157, 255, 0.45);

  /* Backward compatible aliases while migration is in progress */
  --bg-primary: #111520;
  --bg-secondary: #1a2130;
  --bg-tertiary: #242c3e;
  --text-primary: var(--rv-color-text-primary);
  --text-secondary: var(--rv-color-text-secondary);
  --text-muted: var(--rv-color-text-muted);
  --text-on-accent: #ffffff;
  --accent-primary: var(--rv-color-accent-blue);
  --accent-secondary: #6f8dff;
  --accent-surface: rgba(77, 157, 255, 0.2);
  --border-color: var(--rv-glass-border-soft);
  --shadow: var(--rv-glass-shadow-1), var(--rv-glass-shadow-2);
  --radius: var(--rv-radius-sm);
  --transition: all var(--rv-dur-base) var(--rv-ease-standard);

  --panel-glass-bg: var(--rv-glass-bg-2);
  --panel-glass-elevated-bg: var(--rv-glass-bg-3);
  --panel-border-soft: var(--rv-glass-border-soft);
  --panel-border-strong: var(--rv-glass-border-strong);
  --panel-divider: rgba(235, 241, 255, 0.1);

  --list-item-past-bg: rgba(255, 255, 255, 0.08);
  --list-item-future-bg: rgba(255, 255, 255, 0.03);
  --button-ghost-bg: transparent;
  --button-ghost-bg-hover: rgba(255, 255, 255, 0.1);
  --button-ghost-text-disabled: #6c7585;
  --control-overlay-bg: rgba(8, 12, 20, 0.72);
  --badge-bg: rgba(255, 255, 255, 0.1);
  --track-bg: rgba(255, 255, 255, 0.16);
  --input-bg: rgba(10, 14, 20, 0.88);
  --input-bg-focus: rgba(13, 18, 27, 0.96);
  --input-border: rgba(235, 241, 255, 0.18);
  --input-border-focus: var(--rv-color-accent-blue);

  /* Panel contract for inline-styled legacy components */
  --panel-solid-bg: #111111;
  --panel-solid-bg-alt: #0a0a0a;
  --panel-solid-bg-elevated: #1a1a1a;
  --panel-foreground: #ffffff;
  --panel-contrast-03: rgba(255, 255, 255, 0.03);
  --panel-contrast-05: rgba(255, 255, 255, 0.05);
  --panel-contrast-08: rgba(255, 255, 255, 0.08);
  --panel-contrast-10: rgba(255, 255, 255, 0.1);
  --panel-contrast-15: rgba(255, 255, 255, 0.15);
  --panel-contrast-20: rgba(255, 255, 255, 0.2);
  --panel-contrast-30: rgba(255, 255, 255, 0.3);
  --panel-contrast-40: rgba(255, 255, 255, 0.4);
  --panel-contrast-50: rgba(255, 255, 255, 0.5);
  --panel-contrast-60: rgba(255, 255, 255, 0.6);

  /* Timeline contract */
  --timeline-track-bg: #1a1a1f;
  --timeline-track-bg-alt: #1f1f24;
  --timeline-track-border: #2d2d32;
  --timeline-clip-bg: #374151;
  --timeline-clip-bg-hover: #4b5563;
  --timeline-clip-bg-selected: #3b82f6;
  --timeline-clip-border: #6b7280;
  --timeline-clip-border-selected: #60a5fa;
  --timeline-handle-bg: #6b7280;
  --timeline-handle-bg-hover: #9ca3af;
  --timeline-handle-bg-active: #3b82f6;
  --timeline-playhead: #ef4444;
  --timeline-playhead-shadow: rgba(239, 68, 68, 0.3);
  --timeline-ruler-bg: #0f0f12;
  --timeline-ruler-text: #9ca3af;
  --timeline-ruler-tick: #4b5563;
  --timeline-ruler-tick-major: #6b7280;
  --timeline-text-primary: #e5e7eb;
  --timeline-text-secondary: #9ca3af;
  --timeline-text-muted: #6b7280;
  --timeline-playhead-indicator: #ffffff;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--rv-font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}

[data-theme='light'] {
  --rv-color-text-primary: #172033;
  --rv-color-text-secondary: #4a5870;
  --rv-color-text-muted: #6f8099;
  --rv-color-accent-blue: #2375e1;
  --rv-color-accent-green: #109f78;
  --rv-color-accent-amber: #c98b0d;
  --rv-color-accent-red: #d4465f;

  --rv-glass-bg-1: rgba(242, 247, 255, 0.8);
  --rv-glass-bg-2: rgba(245, 249, 255, 0.88);
  --rv-glass-bg-3: rgba(248, 251, 255, 0.94);
  --rv-glass-border-soft: rgba(76, 94, 120, 0.16);
  --rv-glass-border-strong: rgba(76, 94, 120, 0.26);
  --rv-glass-highlight: rgba(255, 255, 255, 0.75);
  --rv-glass-shadow-1: 0 12px 22px rgba(18, 27, 44, 0.12);
  --rv-glass-shadow-2: 0 4px 10px rgba(18, 27, 44, 0.08);
  --rv-focus-ring: 0 0 0 2px rgba(35, 117, 225, 0.35);

  --bg-primary: #e7edf6;
  --bg-secondary: #ffffff;
  --bg-tertiary: #e4eaf3;
  --text-primary: var(--rv-color-text-primary);
  --text-secondary: var(--rv-color-text-secondary);
  --text-muted: var(--rv-color-text-muted);
  --text-on-accent: #ffffff;
  --accent-primary: var(--rv-color-accent-blue);
  --accent-secondary: #415bd1;
  --accent-surface: rgba(35, 117, 225, 0.12);
  --border-color: var(--rv-glass-border-soft);
  --shadow: var(--rv-glass-shadow-1), var(--rv-glass-shadow-2);

  --panel-glass-bg: var(--rv-glass-bg-2);
  --panel-glass-elevated-bg: var(--rv-glass-bg-3);
  --panel-border-soft: var(--rv-glass-border-soft);
  --panel-border-strong: var(--rv-glass-border-strong);
  --panel-divider: rgba(76, 94, 120, 0.14);

  --list-item-past-bg: rgba(23, 32, 51, 0.06);
  --list-item-future-bg: rgba(255, 255, 255, 0.95);
  --button-ghost-bg: transparent;
  --button-ghost-bg-hover: rgba(23, 32, 51, 0.06);
  --button-ghost-text-disabled: #a4afc1;
  --control-overlay-bg: rgba(255, 255, 255, 0.88);
  --badge-bg: rgba(23, 32, 51, 0.08);
  --track-bg: rgba(23, 32, 51, 0.14);
  --input-bg: rgba(255, 255, 255, 0.9);
  --input-bg-focus: #ffffff;
  --input-border: rgba(76, 94, 120, 0.2);
  --input-border-focus: var(--rv-color-accent-blue);

  /* Light mode mappings for panel contract */
  --panel-solid-bg: #f7faff;
  --panel-solid-bg-alt: #edf3fb;
  --panel-solid-bg-elevated: #f2f7ff;
  --panel-foreground: var(--text-primary);
  --panel-contrast-03: rgba(23, 32, 51, 0.03);
  --panel-contrast-05: rgba(23, 32, 51, 0.05);
  --panel-contrast-08: rgba(23, 32, 51, 0.08);
  --panel-contrast-10: rgba(23, 32, 51, 0.1);
  --panel-contrast-15: rgba(76, 94, 120, 0.15);
  --panel-contrast-20: rgba(76, 94, 120, 0.2);
  --panel-contrast-30: rgba(76, 94, 120, 0.3);
  --panel-contrast-40: rgba(76, 94, 120, 0.4);
  --panel-contrast-50: rgba(76, 94, 120, 0.5);
  --panel-contrast-60: rgba(76, 94, 120, 0.6);

  /* Timeline contract (light mode) */
  --timeline-track-bg: #e8eef8;
  --timeline-track-bg-alt: #e1e9f5;
  --timeline-track-border: #c3d0e2;
  --timeline-clip-bg: #9caecc;
  --timeline-clip-bg-hover: #8da2c4;
  --timeline-clip-bg-selected: #3b82f6;
  --timeline-clip-border: #7e94b6;
  --timeline-clip-border-selected: #2563eb;
  --timeline-handle-bg: #8ea1bf;
  --timeline-handle-bg-hover: #7a8faf;
  --timeline-handle-bg-active: #3b82f6;
  --timeline-playhead: #ef4444;
  --timeline-playhead-shadow: rgba(239, 68, 68, 0.25);
  --timeline-ruler-bg: #dbe5f3;
  --timeline-ruler-text: #4f6381;
  --timeline-ruler-tick: #8ca0bd;
  --timeline-ruler-tick-major: #6f86a8;
  --timeline-text-primary: #1c2a40;
  --timeline-text-secondary: #556c8d;
  --timeline-text-muted: #7890ae;
  --timeline-playhead-indicator: #1c2a40;
}

/* ========================================
   THEME INLINE STYLE OVERRIDES
   ======================================== */
[data-theme='light'] [style*="linear-gradient(135deg, rgba(20, 20, 30"] {
  background: var(--panel-glass-bg) !important;
  color: var(--text-primary) !important;
  border-color: var(--panel-border-soft) !important;
}

[data-theme='light'] [style*="linear-gradient(135deg, rgba(20, 20, 30, 0.95)"] {
  background: var(--panel-glass-elevated-bg) !important;
  color: var(--text-primary) !important;
  border-color: var(--panel-border-strong) !important;
}

[data-theme='light'] [style*="background-color: rgba(0, 0, 0, 0.6)"],
[data-theme='light'] [style*="backgroundColor: rgba(0, 0, 0, 0.6)"] {
  background-color: var(--control-overlay-bg) !important;
  color: var(--text-primary) !important;
}

[data-theme='light'] [style*="border: 0.5px solid rgba(255, 255, 255, 0.18)"],
[data-theme='light'] [style*="border:0.5px solid rgba(255, 255, 255, 0.18)"],
[data-theme='light'] [style*="border: 1px solid rgba(255, 255, 255, 0.18)"] {
  border-color: var(--panel-border-soft) !important;
}

[data-theme='light'] [style*="borderTop: 0.5px solid rgba(255, 255, 255, 0.25)"],
[data-theme='light'] [style*="border-top: 0.5px solid rgba(255, 255, 255, 0.25)"] {
  border-top: 1px solid var(--panel-border-strong) !important;
}

[data-theme='light'] [style*="border-bottom: 1px solid rgba(255, 255, 255, 0.1)"],
[data-theme='light'] [style*="borderBottom: 1px solid rgba(255, 255, 255, 0.1)"] {
  border-bottom: 1px solid var(--panel-divider) !important;
}

[data-theme='light'] [style*="background-color: rgba(255, 255, 255, 0.05)"] {
  background-color: var(--list-item-past-bg) !important;
}

[data-theme='light'] [style*="background-color: rgba(255, 255, 255, 0.02)"] {
  background-color: var(--list-item-future-bg) !important;
}

[data-theme='light'] [style*="backgroundColor: #1e1e23"],
[data-theme='light'] [style*="background-color: #1e1e23"] {
  background-color: var(--input-bg) !important;
  color: var(--text-primary) !important;
  border-color: var(--input-border) !important;
}

[data-theme='light'] [style*="backgroundColor: #252530"],
[data-theme='light'] [style*="background-color: #252530"] {
  background-color: var(--input-bg-focus) !important;
}

/* Accent button text */
button[style*="background: linear-gradient(135deg, rgba(59, 130, 246"],
button[style*="background:linear-gradient(135deg, rgba(59, 130, 246"],
button[style*="background: linear-gradient(135deg, rgba(16, 185, 129"],
button[style*="background:linear-gradient(135deg, rgba(16, 185, 129"],
button[style*="background-color: #3b82f6"],
button[style*="backgroundColor: #3b82f6"],
button[style*="background-color: #10b981"],
button[style*="backgroundColor: #10b981"],
button[style*="background-color: #ef4444"],
button[style*="backgroundColor: #ef4444"],
button[style*="background-color: #f59e0b"],
button[style*="backgroundColor: #f59e0b"],
button[style*="background-color: #8b5cf6"],
button[style*="backgroundColor: #8b5cf6"] {
  color: var(--text-on-accent) !important;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Button base styles */
button {
  font-family: var(--rv-font-sans);
  cursor: pointer;
  border: none;
  outline: none;
  transition: var(--transition);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[role='button']:focus-visible {
  outline: none;
  box-shadow: var(--rv-focus-ring);
}

/* Input base styles */
input,
select,
textarea {
  font-family: var(--rv-font-sans);
  background: var(--input-bg);
  color: var(--text-primary);
  border: 1px solid var(--input-border);
  border-radius: var(--radius);
  padding: 8px 12px;
  transition: var(--transition);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--input-border-focus);
  background: var(--input-bg-focus);
}

/* ========================================
   FOUNDATION GLASS + BUTTON PRIMITIVES
   ======================================== */
.rv-glass-surface {
  background: var(--rv-glass-bg-2);
  border: 1px solid var(--rv-glass-border-soft);
  box-shadow: var(--rv-glass-shadow-1), var(--rv-glass-shadow-2);
}

@supports ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .rv-glass-surface {
    backdrop-filter: blur(var(--rv-glass-blur-sm)) saturate(var(--rv-glass-saturate));
    -webkit-backdrop-filter: blur(var(--rv-glass-blur-sm)) saturate(var(--rv-glass-saturate));
  }
}

.rv-glass-rail {
  display: flex;
  padding: var(--rv-space-2);
  border-radius: var(--rv-radius-lg);
  background: var(--rv-glass-bg-1);
  border: 1px solid var(--rv-glass-border-soft);
  box-shadow: var(--rv-glass-shadow-1), var(--rv-glass-shadow-2);
}

@supports ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .rv-glass-rail {
    backdrop-filter: blur(var(--rv-glass-blur-sm)) saturate(var(--rv-glass-saturate));
    -webkit-backdrop-filter: blur(var(--rv-glass-blur-sm)) saturate(var(--rv-glass-saturate));
  }
}

.rv-btn {
  --rv-btn-bg: var(--button-ghost-bg);
  --rv-btn-color: var(--rv-color-text-primary);
  --rv-btn-border: 1px solid transparent;
  --rv-btn-shadow: none;
  --rv-btn-bg-hover: var(--button-ghost-bg-hover);
  --rv-btn-color-hover: var(--rv-color-text-primary);
  --rv-btn-border-hover: var(--rv-btn-border);
  --rv-btn-shadow-hover: var(--rv-btn-shadow);
  --rv-btn-transform-hover: translateY(-1px) scale(1.01);

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--rv-space-2);
  font-family: inherit;
  font-weight: 600;
  line-height: 1;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  white-space: nowrap;

  background: var(--rv-btn-bg);
  color: var(--rv-btn-color);
  border: var(--rv-btn-border);
  box-shadow: var(--rv-btn-shadow);
  transition:
    transform var(--rv-dur-fast) var(--rv-ease-standard),
    background var(--rv-dur-base) var(--rv-ease-standard),
    border-color var(--rv-dur-base) var(--rv-ease-standard),
    box-shadow var(--rv-dur-base) var(--rv-ease-standard),
    color var(--rv-dur-base) var(--rv-ease-standard);
}

.rv-btn:not(:disabled):active {
  transform: scale(0.96);
}

@media (hover: hover) and (pointer: fine) {
  .rv-btn:not(:disabled):hover {
    background: var(--rv-btn-bg-hover);
    color: var(--rv-btn-color-hover);
    border: var(--rv-btn-border-hover);
    box-shadow: var(--rv-btn-shadow-hover);
    transform: var(--rv-btn-transform-hover);
  }
}

.rv-btn:disabled {
  opacity: 0.52;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.rv-btn--xs {
  min-height: 28px;
  padding: 6px 10px;
  border-radius: var(--rv-radius-xs);
  font-size: 11px;
}

.rv-btn--sm {
  min-height: 32px;
  padding: 7px 12px;
  border-radius: var(--rv-radius-xs);
  font-size: 11px;
}

.rv-btn--md {
  min-height: 36px;
  padding: 10px 16px;
  border-radius: var(--rv-radius-sm);
  font-size: 13px;
}

.rv-btn--lg {
  min-height: 42px;
  padding: 12px 24px;
  border-radius: var(--rv-radius-md);
  font-size: 14px;
}

.rv-btn--icon-sm {
  width: 28px;
  height: 28px;
  padding: 0;
  border-radius: var(--rv-radius-xs);
}

.rv-btn--icon-md {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--rv-radius-sm);
}

.rv-btn--icon-lg {
  width: 52px;
  height: 52px;
  padding: 0;
  border-radius: var(--rv-radius-md);
}

.rv-btn--mobile.rv-btn--md {
  min-height: 40px;
  padding: 8px 14px;
  font-size: 12px;
}

.rv-btn--mobile.rv-btn--lg {
  min-height: 44px;
  padding: 10px 18px;
}

.rv-btn--mobile.rv-btn--icon-lg {
  width: 48px;
  height: 48px;
  border-radius: var(--rv-radius-md);
}

.rv-btn--primary {
  --rv-btn-bg: linear-gradient(135deg, color-mix(in srgb, var(--rv-color-accent-blue) 88%, #ffffff 12%), var(--rv-color-accent-blue));
  --rv-btn-color: #ffffff;
  --rv-btn-border: 1px solid color-mix(in srgb, var(--rv-color-accent-blue) 72%, #ffffff 28%);
  --rv-btn-shadow: 0 6px 14px color-mix(in srgb, var(--rv-color-accent-blue) 32%, transparent);
  --rv-btn-bg-hover: linear-gradient(135deg, color-mix(in srgb, var(--rv-color-accent-blue) 78%, #ffffff 22%), color-mix(in srgb, var(--rv-color-accent-blue) 92%, #000000 8%));
  --rv-btn-color-hover: #ffffff;
  --rv-btn-border-hover: 1px solid color-mix(in srgb, var(--rv-color-accent-blue) 64%, #ffffff 36%);
  --rv-btn-shadow-hover: 0 10px 20px color-mix(in srgb, var(--rv-color-accent-blue) 36%, transparent);
}

.rv-btn--secondary {
  --rv-btn-bg: color-mix(in srgb, var(--rv-glass-bg-2) 75%, var(--bg-secondary) 25%);
  --rv-btn-color: var(--rv-color-text-secondary);
  --rv-btn-border: 1px solid var(--rv-glass-border-soft);
  --rv-btn-shadow: inset 0 1px 0 var(--rv-glass-highlight);
  --rv-btn-bg-hover: color-mix(in srgb, var(--rv-glass-bg-2) 62%, var(--bg-secondary) 38%);
  --rv-btn-color-hover: var(--rv-color-text-primary);
  --rv-btn-border-hover: 1px solid var(--rv-glass-border-strong);
}

.rv-btn--danger {
  --rv-btn-bg: color-mix(in srgb, var(--rv-color-accent-red) 18%, transparent);
  --rv-btn-color: var(--rv-color-accent-red);
  --rv-btn-border: 1px solid color-mix(in srgb, var(--rv-color-accent-red) 38%, transparent);
  --rv-btn-bg-hover: color-mix(in srgb, var(--rv-color-accent-red) 26%, transparent);
  --rv-btn-color-hover: var(--rv-color-accent-red);
  --rv-btn-border-hover: 1px solid color-mix(in srgb, var(--rv-color-accent-red) 48%, transparent);
}

.rv-btn--ghost {
  --rv-btn-bg: var(--button-ghost-bg);
  --rv-btn-color: var(--rv-color-text-primary);
  --rv-btn-border: 1px solid transparent;
  --rv-btn-bg-hover: var(--button-ghost-bg-hover);
  --rv-btn-color-hover: var(--rv-color-text-primary);
  --rv-btn-border-hover: 1px solid color-mix(in srgb, var(--rv-glass-border-soft) 70%, transparent);
}

.rv-btn--glass {
  --rv-btn-bg: color-mix(in srgb, var(--rv-glass-bg-1) 85%, #000000 15%);
  --rv-btn-color: #ffffff;
  --rv-btn-border: 1px solid var(--rv-glass-border-soft);
  --rv-btn-shadow: 0 2px 8px rgba(0, 0, 0, 0.22);
  --rv-btn-bg-hover: linear-gradient(135deg, color-mix(in srgb, var(--rv-color-accent-blue) 82%, #ffffff 18%), var(--rv-color-accent-blue));
  --rv-btn-color-hover: #ffffff;
  --rv-btn-border-hover: 1px solid var(--rv-glass-border-strong);
  --rv-btn-shadow-hover: 0 10px 20px rgba(0, 0, 0, 0.28);
}

@supports ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .rv-btn--glass {
    backdrop-filter: blur(var(--rv-glass-blur-sm)) saturate(var(--rv-glass-saturate));
    -webkit-backdrop-filter: blur(var(--rv-glass-blur-sm)) saturate(var(--rv-glass-saturate));
  }
}

.rv-btn--active {
  --rv-btn-bg: linear-gradient(135deg, color-mix(in srgb, var(--rv-color-accent-green) 88%, #ffffff 12%), color-mix(in srgb, var(--rv-color-accent-green) 92%, #000000 8%));
  --rv-btn-color: #ffffff;
  --rv-btn-border: 1px solid color-mix(in srgb, var(--rv-color-accent-green) 60%, #ffffff 40%);
  --rv-btn-shadow: 0 0 12px color-mix(in srgb, var(--rv-color-accent-green) 36%, transparent);
  --rv-btn-bg-hover: var(--rv-btn-bg);
  --rv-btn-color-hover: #ffffff;
  --rv-btn-border-hover: var(--rv-btn-border);
  --rv-btn-shadow-hover: var(--rv-btn-shadow);
  --rv-btn-transform-hover: none;
}

.rv-engine-header-link {
  color: var(--rv-color-text-secondary);
  transition:
    color var(--rv-dur-fast) var(--rv-ease-standard),
    border-color var(--rv-dur-fast) var(--rv-ease-standard),
    background var(--rv-dur-fast) var(--rv-ease-standard);
}

.rv-engine-header-link:hover {
  color: var(--rv-color-text-primary);
}

.rv-engine-header-login {
  border: 1px dashed color-mix(in srgb, var(--rv-glass-border-strong) 75%, transparent);
}

.rv-engine-header-login:hover {
  border-color: var(--rv-glass-border-strong);
  background: color-mix(in srgb, var(--rv-glass-bg-2) 85%, transparent);
}

.rv-panel-shell {
  background: var(--rv-glass-bg-2);
  border: 1px solid var(--rv-glass-border-soft);
  border-top: 1px solid var(--rv-glass-border-strong);
  box-shadow: var(--rv-glass-shadow-1), var(--rv-glass-shadow-2);
  font-family: var(--rv-font-sans);
}

@supports ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .rv-panel-shell {
    backdrop-filter: blur(var(--rv-glass-blur-lg)) saturate(var(--rv-glass-saturate));
    -webkit-backdrop-filter: blur(var(--rv-glass-blur-lg)) saturate(var(--rv-glass-saturate));
  }
}

.rv-panel-handle {
  width: 40px;
  height: 4px;
  background: color-mix(in srgb, var(--rv-glass-highlight) 45%, transparent);
  border-radius: 2px;
  transition: all var(--rv-dur-fast) var(--rv-ease-standard);
}

@media (hover: hover) and (pointer: fine) {
  .rv-panel-handle:hover {
    height: 5px;
    background: color-mix(in srgb, var(--rv-glass-highlight) 70%, transparent);
  }
}

.rv-panel-section-divider {
  height: 1px;
  background: color-mix(in srgb, var(--rv-glass-border-soft) 72%, transparent);
}

.floating-panel,
.panel-header,
.panel-title,
.panel-content,
.loading-overlay {
  font-family: var(--rv-font-sans);
}

.rv-upload-dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 2px dashed color-mix(in srgb, var(--rv-glass-border-soft) 85%, transparent);
  border-radius: var(--rv-radius-sm);
  padding: 24px;
  cursor: pointer;
  transition:
    background var(--rv-dur-base) var(--rv-ease-standard),
    border-color var(--rv-dur-base) var(--rv-ease-standard);
}

.rv-upload-dropzone:hover,
.rv-upload-dropzone:focus-within {
  background: color-mix(in srgb, var(--rv-glass-bg-2) 60%, transparent);
  border-color: var(--rv-color-accent-blue);
}

.rv-panel-toggle-btn {
  pointer-events: auto;
  padding: 12px 24px;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--rv-color-accent-blue) 88%, #ffffff 12%),
    var(--rv-color-accent-blue)
  );
  color: var(--text-on-accent);
  border: 1px solid color-mix(in srgb, var(--rv-glass-border-strong) 80%, transparent);
  border-top: 1px solid var(--rv-glass-highlight);
  border-radius: var(--rv-radius-sm);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  box-shadow: var(--rv-glass-shadow-1), var(--rv-glass-shadow-2);
  transition: all var(--rv-dur-base) var(--rv-ease-emphasized);
  font-family: inherit;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

@supports ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .rv-panel-toggle-btn {
    backdrop-filter: blur(var(--rv-glass-blur-md)) saturate(var(--rv-glass-saturate));
    -webkit-backdrop-filter: blur(var(--rv-glass-blur-md)) saturate(var(--rv-glass-saturate));
  }
}

@media (hover: hover) and (pointer: fine) {
  .rv-panel-toggle-btn:hover {
    transform: translateY(-2px) scale(1.02);
    background: linear-gradient(
      135deg,
      color-mix(in srgb, var(--rv-color-accent-blue) 76%, #ffffff 24%),
      color-mix(in srgb, var(--rv-color-accent-blue) 92%, #00183a 8%)
    );
  }
}

/* Utility classes */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-2 {
  gap: 0.5rem;
}

.gap-4 {
  gap: 1rem;
}

.p-4 {
  padding: 1rem;
}

.mt-2 {
  margin-top: 0.5rem;
}

.mt-4 {
  margin-top: 1rem;
}

/* Panel styles */
.floating-panel {
  position: absolute;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  max-height: 80vh;
  overflow-y: auto;
  z-index: 100;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  cursor: move;
  user-select: none;
}

.panel-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.panel-close {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  background: transparent;
  color: var(--text-secondary);
  transition: var(--transition);
}

.panel-close:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.panel-content {
  padding: 16px;
}

/* Toast notification */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 12px 16px;
  box-shadow: var(--shadow);
  z-index: 9999;
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    transform: translateX(400px);
    opacity: 0;
  }

  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast.success {
  border-left: 4px solid #10b981;
}

.toast.error {
  border-left: 4px solid #ef4444;
}

.toast.info {
  border-left: 4px solid var(--accent-primary);
}

/* Loading overlay */
.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(26, 26, 31, 0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ========================================
   ADDITIONAL ANIMATIONS FROM ORIGINAL
   ======================================== */

/* Pulse animation */
@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.7;
  }
}

/* Slide & Fade Animations */
@keyframes slideInFromLeft {
  0% {
    opacity: 0;
    transform: translateX(-40px);
  }

  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInFromRight {
  0% {
    opacity: 0;
    transform: translateX(40px);
  }

  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInFromBottom {
  0% {
    opacity: 0;
    transform: translateX(-50%) translateY(40px);
  }

  100% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes slideInFromTop {
  0% {
    opacity: 0;
    transform: translateY(-20px);
  }

  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Toast Notification Animation - Slide from Top */
@keyframes toastSlideIn {
  0% {
    opacity: 0;
    transform: translate(-50%, -30px);
  }

  100% {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

@keyframes toastSlideOut {
  0% {
    opacity: 1;
    transform: translate(-50%, 0);
  }

  100% {
    opacity: 0;
    transform: translate(-50%, -20px);
  }
}

/* Flash Effect for Keyframe Capture */
@keyframes flashPulse {

  0%,
  100% {
    box-shadow: 0 0 8px rgba(139, 92, 246, 0.6);
    transform: translate(-50%, -50%) rotate(45deg) scale(1);
  }

  50% {
    box-shadow: 0 0 30px rgba(16, 185, 129, 1), 0 0 50px rgba(16, 185, 129, 0.6);
    transform: translate(-50%, -50%) rotate(45deg) scale(1.8);
  }
}

/* Update Pulse Effect */
@keyframes updatePulse {

  0%,
  100% {
    box-shadow: 0 0 12px rgba(245, 158, 11, 0.9);
    transform: translate(-50%, -50%) rotate(45deg) scale(1.4);
  }

  50% {
    box-shadow: 0 0 25px rgba(245, 158, 11, 1), 0 0 40px rgba(245, 158, 11, 0.7);
    transform: translate(-50%, -50%) rotate(45deg) scale(1.7);
  }
}

/* Delete Fade Out */
@keyframes deleteFadeOut {
  0% {
    opacity: 1;
    transform: translate(-50%, -50%) rotate(45deg) scale(1.4);
  }

  50% {
    transform: translate(-50%, -50%) rotate(225deg) scale(0.3);
  }

  100% {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(405deg) scale(0);
  }
}

@keyframes fadeIn {
  0% {
    opacity: 0;
  }

  100% {
    opacity: 1;
  }
}

@keyframes fadeOut {
  0% {
    opacity: 1;
  }

  100% {
    opacity: 0;
  }
}

@keyframes scaleIn {
  0% {
    opacity: 0;
    transform: scale(0.95);
  }

  100% {
    opacity: 1;
    transform: scale(1);
  }
}

/* Loading Screen Animations */
@keyframes pulse-glow {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.7;
    transform: scale(1.05);
  }
}

@keyframes blurFadeInOut {
  0% {
    opacity: 0;
    filter: blur(10px);
  }

  50% {
    opacity: 1;
    filter: blur(0px);
  }

  100% {
    opacity: 0;
    filter: blur(10px);
  }
}

@keyframes blurFadeIn {
  0% {
    opacity: 0;
    filter: blur(8px);
    transform: translateY(10px);
  }

  100% {
    opacity: 1;
    filter: blur(0px);
    transform: translateY(0);
  }
}

/* Mobile-friendly scrolling */
* {
  -webkit-overflow-scrolling: touch;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Better touch target sizes for mobile */
@media (max-width: 768px) {
  button:not([style*="border-radius: 50%"]) {
    min-height: 40px;
    touch-action: manipulation;
  }

  input[type="range"] {
    height: 36px;
    touch-action: manipulation;
  }

  select {
    min-height: 40px;
    font-size: 14px;
    touch-action: manipulation;
  }

  input[type="number"],
  input[type="text"] {
    min-height: 36px;
    font-size: 14px;
    touch-action: manipulation;
  }

  /* Prevent zoom on input focus on iOS */
  input,
  select,
  textarea {
    font-size: 16px !important;
  }
}

/* Smooth slide-in animation for mobile panel */
@keyframes slideUp {
  from {
    transform: translateY(100%);
  }

  to {
    transform: translateY(0);
  }
}
:root,
[data-theme='dark'] {
  --rv-liquid-font-ui: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --rv-liquid-accent: #3d99ff;
  --rv-liquid-accent-strong: #1f70d9;
  --rv-liquid-accent-soft: #4ba3ff;

  --rv-liquid-app-bg:
    radial-gradient(circle at 16% 12%, rgba(76, 147, 245, 0.22), transparent 46%),
    radial-gradient(circle at 86% 10%, rgba(75, 163, 255, 0.16), transparent 48%),
    linear-gradient(160deg, #0f1722 0%, #121c2a 55%, #111926 100%);

  --rv-liquid-text-primary: #e6edf3;
  --rv-liquid-text-secondary: #9db2cc;
  --rv-liquid-text-muted: #7f95b1;

  --rv-liquid-glass-border: rgba(255, 255, 255, 0.14);
  --rv-liquid-glass-border-strong: rgba(174, 214, 255, 0.24);
  --rv-liquid-glass-bg:
    linear-gradient(148deg, rgba(24, 33, 48, 0.94), rgba(18, 26, 39, 0.9));
  --rv-liquid-glass-bg-elevated:
    linear-gradient(145deg, rgba(22, 28, 40, 0.94), rgba(17, 25, 38, 0.9));
  --rv-liquid-glass-bg-card:
    linear-gradient(148deg, rgba(21, 29, 42, 0.9), rgba(16, 24, 36, 0.86));
  --rv-liquid-glass-shadow:
    0 16px 34px rgba(0, 0, 0, 0.52),
    0 1px 0 rgba(172, 213, 255, 0.08) inset;
  --rv-liquid-glass-shadow-soft:
    0 10px 24px rgba(0, 0, 0, 0.46),
    0 1px 0 rgba(172, 213, 255, 0.06) inset;
  --rv-liquid-blur: 18px;
  --rv-liquid-blur-strong: 22px;
  --rv-liquid-saturate: 124%;

  --rv-liquid-radius-xs: 10px;
  --rv-liquid-radius-sm: 14px;
  --rv-liquid-radius-md: 18px;
  --rv-liquid-radius-lg: 24px;
  --rv-liquid-radius-pill: 9999px;

  /* Timeline liquid palette (dark) */
  --timeline-track-bg: rgba(18, 25, 37, 0.84);
  --timeline-track-bg-alt: rgba(21, 30, 44, 0.9);
  --timeline-track-border: rgba(154, 185, 222, 0.26);
  --timeline-clip-bg: rgba(57, 104, 158, 0.44);
  --timeline-clip-bg-hover: rgba(66, 121, 184, 0.56);
  --timeline-clip-bg-selected: rgba(61, 153, 255, 0.5);
  --timeline-clip-border: rgba(162, 193, 229, 0.5);
  --timeline-clip-border-selected: rgba(106, 185, 255, 0.94);
  --timeline-handle-bg: rgba(143, 176, 212, 0.62);
  --timeline-handle-bg-hover: rgba(178, 209, 241, 0.84);
  --timeline-handle-bg-active: #4ba3ff;
  --timeline-ruler-bg: rgba(15, 22, 33, 0.94);
  --timeline-ruler-text: #b3c8e3;
  --timeline-ruler-tick: rgba(140, 170, 204, 0.54);
  --timeline-ruler-tick-major: rgba(180, 208, 239, 0.82);
  --timeline-text-primary: #e5edf6;
  --timeline-text-secondary: #a8bdd8;
  --timeline-text-muted: #7f95b1;
  --timeline-playhead-indicator: #e5edf6;

  --rv-timeline-surface-bg: linear-gradient(152deg, rgba(17, 25, 37, 0.92), rgba(14, 21, 32, 0.88));
  --rv-timeline-surface-border: rgba(166, 198, 234, 0.28);
  --rv-timeline-surface-shadow: 0 14px 26px rgba(0, 0, 0, 0.34);
  --rv-timeline-toolbar-bg: rgba(20, 30, 43, 0.88);
  --rv-timeline-btn-bg: rgba(48, 80, 119, 0.46);
  --rv-timeline-btn-bg-disabled: rgba(32, 45, 62, 0.5);
  --rv-timeline-btn-border: rgba(157, 189, 224, 0.52);
  --rv-timeline-btn-border-disabled: rgba(123, 149, 180, 0.34);
  --rv-timeline-btn-fg: #e8f0fa;
  --rv-timeline-btn-fg-disabled: #8ea3be;
  --rv-timeline-btn-shadow: 0 4px 10px rgba(5, 10, 18, 0.25);
  --rv-timeline-pill-bg: rgba(28, 41, 58, 0.72);
  --rv-timeline-pill-border: rgba(146, 178, 213, 0.42);
  --rv-timeline-progress-track-bg: rgba(26, 39, 56, 0.76);
  --rv-timeline-progress-track-border: rgba(151, 183, 219, 0.46);
  --rv-timeline-progress-fill: #4ba3ff;
  --rv-timeline-progress-fill-idle: rgba(129, 160, 198, 0.92);
}

[data-theme='light'] {
  --rv-liquid-app-bg:
    radial-gradient(circle at 12% 10%, rgba(116, 174, 255, 0.24), transparent 44%),
    radial-gradient(circle at 86% 14%, rgba(87, 169, 255, 0.18), transparent 48%),
    linear-gradient(160deg, #f5f6f8 0%, #eef0f3 55%, #f9fafb 100%);

  --rv-liquid-text-primary: #1d2e4a;
  --rv-liquid-text-secondary: #4f617f;
  --rv-liquid-text-muted: #6e7f99;

  --rv-liquid-glass-border: rgba(255, 255, 255, 0.95);
  --rv-liquid-glass-border-strong: rgba(255, 255, 255, 0.98);
  --rv-liquid-glass-bg:
    linear-gradient(148deg, rgba(255, 255, 255, 0.93), rgba(246, 248, 251, 0.86) 52%, rgba(238, 241, 246, 0.78));
  --rv-liquid-glass-bg-elevated:
    linear-gradient(152deg, rgba(255, 255, 255, 0.96), rgba(246, 248, 251, 0.9) 54%, rgba(239, 242, 247, 0.82));
  --rv-liquid-glass-bg-card:
    linear-gradient(148deg, rgba(255, 255, 255, 0.9), rgba(245, 247, 250, 0.84) 52%, rgba(237, 240, 245, 0.76));
  --rv-liquid-glass-shadow:
    0 16px 34px rgba(30, 34, 45, 0.14),
    0 2px 12px rgba(255, 255, 255, 0.82) inset,
    0 -18px 34px rgba(255, 255, 255, 0.2) inset;
  --rv-liquid-glass-shadow-soft:
    0 10px 24px rgba(30, 34, 45, 0.12),
    0 2px 8px rgba(255, 255, 255, 0.66) inset;
  --rv-liquid-saturate: 132%;

  /* Timeline liquid palette (light) */
  --timeline-track-bg: rgba(238, 244, 252, 0.96);
  --timeline-track-bg-alt: rgba(231, 239, 250, 0.98);
  --timeline-track-border: rgba(132, 156, 191, 0.46);
  --timeline-clip-bg: rgba(122, 154, 199, 0.52);
  --timeline-clip-bg-hover: rgba(108, 145, 195, 0.64);
  --timeline-clip-bg-selected: rgba(44, 121, 230, 0.66);
  --timeline-clip-border: rgba(110, 138, 174, 0.64);
  --timeline-clip-border-selected: rgba(29, 104, 210, 0.9);
  --timeline-handle-bg: rgba(119, 143, 177, 0.66);
  --timeline-handle-bg-hover: rgba(95, 124, 163, 0.78);
  --timeline-handle-bg-active: #2d7fe8;
  --timeline-ruler-bg: rgba(223, 233, 246, 0.96);
  --timeline-ruler-text: #4d6586;
  --timeline-ruler-tick: rgba(116, 140, 174, 0.58);
  --timeline-ruler-tick-major: rgba(94, 123, 161, 0.76);
  --timeline-text-primary: #1f304a;
  --timeline-text-secondary: #5b7191;
  --timeline-text-muted: #7c93b0;
  --timeline-playhead-indicator: #1f304a;

  --rv-timeline-surface-bg: linear-gradient(152deg, rgba(242, 247, 255, 0.95), rgba(234, 241, 250, 0.92));
  --rv-timeline-surface-border: rgba(132, 156, 191, 0.42);
  --rv-timeline-surface-shadow: 0 12px 24px rgba(26, 37, 53, 0.14);
  --rv-timeline-toolbar-bg: rgba(227, 236, 248, 0.94);
  --rv-timeline-btn-bg: rgba(174, 197, 228, 0.94);
  --rv-timeline-btn-bg-disabled: rgba(214, 224, 239, 0.8);
  --rv-timeline-btn-border: rgba(88, 120, 162, 0.76);
  --rv-timeline-btn-border-disabled: rgba(131, 153, 184, 0.38);
  --rv-timeline-btn-fg: #1f3555;
  --rv-timeline-btn-fg-disabled: #7188a7;
  --rv-timeline-btn-shadow: 0 3px 8px rgba(47, 63, 87, 0.12);
  --rv-timeline-pill-bg: rgba(211, 223, 241, 0.82);
  --rv-timeline-pill-border: rgba(124, 149, 184, 0.46);
  --rv-timeline-progress-track-bg: rgba(205, 220, 241, 0.95);
  --rv-timeline-progress-track-border: rgba(109, 136, 170, 0.66);
  --rv-timeline-progress-fill: #2d7fe8;
  --rv-timeline-progress-fill-idle: rgba(92, 117, 153, 0.88);
}

html,
body {
  font-family: var(--rv-liquid-font-ui);
}

body {
  background: var(--rv-liquid-app-bg);
  color: var(--rv-liquid-text-primary);
}

/* Bridge existing engine tokens to LiquidGlass palette */
:root,
[data-theme='dark'],
[data-theme='light'] {
  --rv-color-accent-blue: var(--rv-liquid-accent);
  --rv-color-text-primary: var(--rv-liquid-text-primary);
  --rv-color-text-secondary: var(--rv-liquid-text-secondary);
  --rv-color-text-muted: var(--rv-liquid-text-muted);

  --rv-glass-bg-1: var(--rv-liquid-glass-bg);
  --rv-glass-bg-2: var(--rv-liquid-glass-bg);
  --rv-glass-bg-3: var(--rv-liquid-glass-bg-card);
  --rv-glass-border-soft: var(--rv-liquid-glass-border);
  --rv-glass-border-strong: var(--rv-liquid-glass-border-strong);
  --rv-glass-shadow-1: var(--rv-liquid-glass-shadow);
  --rv-glass-shadow-2: var(--rv-liquid-glass-shadow-soft);
  --rv-glass-blur-sm: 14px;
  --rv-glass-blur-md: var(--rv-liquid-blur);
  --rv-glass-blur-lg: var(--rv-liquid-blur-strong);
  --rv-glass-saturate: var(--rv-liquid-saturate);

  --panel-glass-bg: var(--rv-liquid-glass-bg);
  --panel-glass-elevated-bg: var(--rv-liquid-glass-bg-card);
  --panel-border-soft: var(--rv-liquid-glass-border);
  --panel-border-strong: var(--rv-liquid-glass-border-strong);

  --text-primary: var(--rv-liquid-text-primary);
  --text-secondary: var(--rv-liquid-text-secondary);
  --text-muted: var(--rv-liquid-text-muted);
  --border-color: var(--rv-liquid-glass-border);
  --input-border: color-mix(in srgb, var(--rv-liquid-glass-border) 80%, transparent);
  --input-border-focus: var(--rv-liquid-accent);
}

.rv-liquid-app-bg {
  background: var(--rv-liquid-app-bg);
}

.rv-liquid-glass {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-radius: var(--rv-liquid-radius-lg);
  border: 1px solid var(--rv-liquid-glass-border);
  background: var(--rv-liquid-glass-bg);
  box-shadow: var(--rv-liquid-glass-shadow);
  backdrop-filter: blur(var(--rv-liquid-blur)) saturate(var(--rv-liquid-saturate));
  -webkit-backdrop-filter: blur(var(--rv-liquid-blur)) saturate(var(--rv-liquid-saturate));
}

.rv-liquid-glass::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.34),
    inset 0 0 0 1px rgba(255, 255, 255, 0.12);
  opacity: 0.86;
}

[data-theme='light'] .rv-liquid-glass::before {
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.74),
    inset 0 0 0 1px rgba(255, 255, 255, 0.3);
}

.rv-liquid-glass > * {
  position: relative;
  z-index: 1;
}

.rv-liquid-glass--topbar {
  background: var(--rv-liquid-glass-bg-elevated);
}

.rv-liquid-glass--panel {
  background: var(--rv-liquid-glass-bg);
  border-radius: var(--rv-liquid-radius-md);
}

.rv-liquid-glass--card {
  background: var(--rv-liquid-glass-bg-card);
  border-radius: var(--rv-liquid-radius-sm);
  box-shadow: var(--rv-liquid-glass-shadow-soft);
}

.rv-liquid-pill {
  border-radius: var(--rv-liquid-radius-pill);
}

.rv-liquid-control {
  border-radius: var(--rv-liquid-radius-pill);
  border: 1px solid color-mix(in srgb, var(--rv-liquid-glass-border-strong) 72%, transparent);
  background: color-mix(in srgb, var(--rv-liquid-glass-bg-elevated) 88%, transparent);
  color: var(--rv-liquid-text-secondary);
  box-shadow:
    0 6px 14px color-mix(in srgb, #000000 24%, transparent),
    0 1px 0 rgba(255, 255, 255, 0.1) inset;
  transition:
    transform 220ms cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 220ms cubic-bezier(0.22, 1, 0.36, 1),
    border-color 220ms ease,
    background-color 220ms ease,
    color 220ms ease;
}

[data-theme='light'] .rv-liquid-control {
  box-shadow:
    0 6px 14px rgba(30, 34, 45, 0.09),
    0 1px 0 rgba(255, 255, 255, 0.8) inset;
}

.rv-liquid-control:hover {
  transform: translateY(-1px);
  color: var(--rv-liquid-text-primary);
}

.rv-liquid-control:active {
  transform: translateY(0) scale(0.985);
}

.rv-liquid-control--icon {
  border-radius: 12px;
}

.rv-liquid-control--primary {
  color: #ffffff;
  border-color: color-mix(in srgb, var(--rv-liquid-accent-soft) 70%, transparent);
  background: linear-gradient(145deg, var(--rv-liquid-accent-soft), var(--rv-liquid-accent-strong));
  box-shadow:
    0 10px 18px color-mix(in srgb, var(--rv-liquid-accent) 34%, transparent),
    0 1px 0 rgba(255, 255, 255, 0.34) inset;
}

.rv-liquid-control--secondary {
  color: var(--rv-liquid-accent-soft);
}

.rv-liquid-panel-shell {
  background: var(--rv-liquid-glass-bg);
  border: 1px solid var(--rv-liquid-glass-border);
  border-top: 1px solid var(--rv-liquid-glass-border-strong);
  box-shadow: var(--rv-liquid-glass-shadow);
  border-radius: var(--rv-liquid-radius-md);
}

.rv-liquid-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 20px 20px 16px;
  border-bottom: 1px solid color-mix(in srgb, var(--rv-liquid-glass-border) 80%, transparent);
}

.rv-liquid-panel-title {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--rv-liquid-text-primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.rv-liquid-panel-body {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0 20px 20px;
}

.rv-liquid-panel-handle {
  width: 40px;
  height: 4px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--rv-liquid-glass-border-strong) 60%, transparent);
}

.rv-liquid-control-rail {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px;
  border-radius: 16px;
  border: 1px solid color-mix(in srgb, var(--rv-liquid-glass-border) 84%, transparent);
  background: color-mix(in srgb, var(--rv-liquid-glass-bg) 85%, transparent);
  box-shadow: var(--rv-liquid-glass-shadow-soft);
  backdrop-filter: blur(14px) saturate(122%);
  -webkit-backdrop-filter: blur(14px) saturate(122%);
}

.rv-liquid-control-rail--undo {
  border-color: color-mix(in srgb, var(--rv-liquid-glass-border-strong) 78%, transparent);
  background: color-mix(in srgb, var(--rv-liquid-glass-bg-elevated) 90%, transparent);
}

[data-theme='dark'] .rv-liquid-control-rail--undo {
  border-color: rgba(173, 208, 244, 0.44);
  background: linear-gradient(152deg, rgba(20, 28, 40, 0.92), rgba(16, 23, 35, 0.9));
}

.rv-undo-btn {
  --rv-btn-color: var(--rv-liquid-text-secondary);
  --rv-btn-bg: transparent;
  --rv-btn-bg-hover: color-mix(in srgb, var(--rv-liquid-glass-bg-card) 70%, transparent);
  --rv-btn-color-hover: var(--rv-liquid-text-primary);
  --rv-btn-border-hover: 1px solid color-mix(in srgb, var(--rv-liquid-glass-border-strong) 70%, transparent);
}

.rv-undo-btn--available {
  --rv-btn-bg: color-mix(in srgb, var(--rv-liquid-glass-bg-card) 58%, transparent);
  --rv-btn-border: 1px solid color-mix(in srgb, var(--rv-liquid-glass-border-strong) 62%, transparent);
}

.rv-undo-btn--history.rv-btn--active {
  --rv-btn-bg: color-mix(in srgb, var(--rv-liquid-accent) 26%, transparent);
  --rv-btn-color: var(--rv-liquid-accent-soft);
  --rv-btn-border: 1px solid color-mix(in srgb, var(--rv-liquid-accent-soft) 54%, transparent);
  --rv-btn-shadow: 0 0 0 1px color-mix(in srgb, var(--rv-liquid-accent) 25%, transparent);
}

.rv-liquid-timeline-btn {
  transition:
    background-color 180ms ease,
    border-color 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

.rv-liquid-timeline-btn:not(:disabled):hover {
  background: color-mix(in srgb, var(--rv-timeline-btn-bg) 75%, var(--rv-liquid-accent-soft) 25%);
  border-color: color-mix(in srgb, var(--rv-timeline-btn-border) 74%, var(--rv-liquid-accent-soft) 26%);
  transform: translateY(-1px);
}

.rv-liquid-timeline-btn:disabled {
  box-shadow: none;
}

.rv-liquid-toast {
  border: 1px solid color-mix(in srgb, var(--rv-liquid-glass-border-strong) 76%, transparent);
  backdrop-filter: blur(14px) saturate(118%);
  -webkit-backdrop-filter: blur(14px) saturate(118%);
  box-shadow: var(--rv-liquid-glass-shadow-soft);
}

.rv-liquid-modal-overlay {
  background: rgba(6, 10, 18, 0.56);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.rv-liquid-modal {
  border-radius: var(--rv-liquid-radius-lg);
  border: 1px solid var(--rv-liquid-glass-border);
  background: var(--rv-liquid-glass-bg-elevated);
  box-shadow: var(--rv-liquid-glass-shadow);
  backdrop-filter: blur(var(--rv-liquid-blur-strong)) saturate(var(--rv-liquid-saturate));
  -webkit-backdrop-filter: blur(var(--rv-liquid-blur-strong)) saturate(var(--rv-liquid-saturate));
}

.rv-liquid-progress {
  border: 1px solid var(--rv-liquid-glass-border);
  background: var(--rv-liquid-glass-bg-elevated);
  box-shadow: var(--rv-liquid-glass-shadow);
}

/* Existing primitives retone */
.rv-glass-surface,
.rv-glass-rail,
.rv-panel-shell {
  border: 1px solid var(--rv-liquid-glass-border) !important;
  box-shadow: var(--rv-liquid-glass-shadow) !important;
}

.rv-glass-surface,
.rv-glass-rail {
  background: var(--rv-liquid-glass-bg) !important;
  border-radius: var(--rv-liquid-radius-md) !important;
}

.rv-panel-handle {
  background: color-mix(in srgb, var(--rv-liquid-glass-border-strong) 68%, transparent);
}

.rv-btn {
  font-weight: 600;
  letter-spacing: 0;
}

.rv-btn--glass {
  --rv-btn-bg: color-mix(in srgb, var(--rv-liquid-glass-bg-elevated) 92%, transparent);
  --rv-btn-color: var(--rv-liquid-text-primary);
  --rv-btn-border: 1px solid color-mix(in srgb, var(--rv-liquid-glass-border-strong) 72%, transparent);
  --rv-btn-shadow: 0 6px 14px color-mix(in srgb, #000000 20%, transparent);
  --rv-btn-bg-hover: color-mix(in srgb, var(--rv-liquid-glass-bg-card) 92%, transparent);
  --rv-btn-border-hover: 1px solid color-mix(in srgb, var(--rv-liquid-glass-border-strong) 92%, transparent);
  --rv-btn-color-hover: var(--rv-liquid-text-primary);
}

.rv-btn--primary {
  --rv-btn-bg: linear-gradient(145deg, var(--rv-liquid-accent-soft), var(--rv-liquid-accent-strong));
  --rv-btn-border: 1px solid color-mix(in srgb, var(--rv-liquid-accent-soft) 72%, #ffffff 28%);
  --rv-btn-shadow: 0 10px 18px color-mix(in srgb, var(--rv-liquid-accent) 34%, transparent);
  --rv-btn-bg-hover: linear-gradient(145deg, #58adff, #2b85f0);
  --rv-btn-border-hover: 1px solid color-mix(in srgb, var(--rv-liquid-accent-soft) 66%, #ffffff 34%);
}

.rv-btn--secondary {
  --rv-btn-bg: color-mix(in srgb, var(--rv-liquid-glass-bg-elevated) 90%, transparent);
  --rv-btn-color: var(--rv-liquid-text-secondary);
  --rv-btn-border: 1px solid color-mix(in srgb, var(--rv-liquid-glass-border) 88%, transparent);
  --rv-btn-bg-hover: color-mix(in srgb, var(--rv-liquid-glass-bg-card) 92%, transparent);
  --rv-btn-color-hover: var(--rv-liquid-text-primary);
  --rv-btn-border-hover: 1px solid color-mix(in srgb, var(--rv-liquid-glass-border-strong) 92%, transparent);
}

.rv-engine-header-link {
  color: var(--rv-liquid-text-secondary);
}

.rv-engine-header-link:hover {
  color: var(--rv-liquid-text-primary);
}

input[type="color"].rv-color-input {
  -webkit-appearance: none;
  appearance: none;
  padding: 0;
  border: 1px solid color-mix(in srgb, var(--rv-liquid-glass-border-strong) 70%, transparent);
  border-radius: 10px;
  overflow: hidden;
  background: transparent;
}

input[type="color"].rv-color-input::-webkit-color-swatch-wrapper {
  padding: 0;
}

input[type="color"].rv-color-input::-webkit-color-swatch {
  border: none;
  border-radius: 8px;
}

input[type="color"].rv-color-input::-moz-color-swatch {
  border: none;
  border-radius: 8px;
}

@media (prefers-reduced-motion: reduce) {
  .rv-liquid-control,
  .rv-btn,
  .rv-glass-surface,
  .rv-glass-rail,
  .rv-panel-shell,
  .rv-liquid-modal {
    transition: none !important;
    animation: none !important;
  }
}