/*
 * ReScore web design system
 * Source of truth: ../DESIGN.md and the mobile app's DESIGN.md.
 *
 * style.css keeps the score renderer and responsive geometry that have already
 * been verified. This layer owns brand, color, type, surfaces and interaction.
 */

:root {
  color-scheme: light;

  --rs-brand: #5570d9;
  --rs-accent: #4f69cc;
  --rs-action: #546fd7;
  --rs-accent-strong: #3f58b8;
  --rs-accent-soft: rgba(85, 112, 217, 0.12);
  --rs-accent-border: rgba(85, 112, 217, 0.28);
  --rs-signal: #d95732;
  --rs-signal-soft: rgba(217, 87, 50, 0.14);

  --rs-canvas: #f5f5f7;
  --rs-canvas-raised: #ffffff;
  --rs-surface: #ffffff;
  --rs-surface-raised: #ffffff;
  --rs-surface-muted: #efeff1;
  --rs-surface-strong: #e6e6e8;
  --rs-ink: #1d1d1f;
  --rs-ink-muted: #54545a;
  --rs-ink-subtle: #6e6e73;
  --rs-border: rgba(60, 60, 67, 0.16);
  --rs-border-strong: rgba(60, 60, 67, 0.28);
  --rs-paper: #fffdf7;
  --rs-paper-muted: #f1eee6;
  --rs-dark: #1c1c1e;
  --rs-dark-surface: #242426;
  --rs-dark-raised: #2c2c2e;
  --rs-dark-muted: #333336;
  --rs-dark-text: #f5f5f7;
  --rs-dark-text-muted: #d1d1d6;

  --rs-radius-xs: 8px;
  --rs-radius-sm: 12px;
  --rs-radius-md: 16px;
  --rs-radius-lg: 22px;
  --rs-radius-xl: 28px;
  --rs-radius-full: 999px;
  --rs-control-radius: var(--rs-radius-sm);

  --rs-shadow-border:
    0 0 0 1px rgba(0, 0, 0, 0.06),
    0 1px 2px -1px rgba(0, 0, 0, 0.06),
    0 2px 4px rgba(0, 0, 0, 0.04);
  --rs-shadow-border-hover:
    0 0 0 1px rgba(0, 0, 0, 0.08),
    0 2px 4px -1px rgba(0, 0, 0, 0.08),
    0 6px 14px rgba(0, 0, 0, 0.06);
  --rs-shadow-float:
    0 0 0 1px rgba(0, 0, 0, 0.08),
    0 18px 52px rgba(29, 29, 31, 0.13);
  --rs-glass-surface: rgba(255, 255, 255, 0.42);
  --rs-glass-surface-strong: rgba(255, 255, 255, 0.8);
  --rs-glass-hover: rgba(255, 255, 255, 0.58);
  --rs-glass-highlight: rgba(255, 255, 255, 0.58);
  --rs-glass-stroke: rgba(38, 43, 61, 0.08);
  --rs-glass-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.78),
    inset 0 -1px 0 rgba(255, 255, 255, 0.34),
    0 10px 30px rgba(31, 38, 58, 0.09);

  /*
   * Compatibility aliases for the existing renderer. New component work must
   * use the rs-* roles above rather than adding another color vocabulary.
   */
  --ink: var(--rs-ink);
  --ink-soft: var(--rs-ink-muted);
  --muted: var(--rs-ink-subtle);
  --line: var(--rs-border);
  --line-strong: var(--rs-border-strong);
  --canvas: var(--rs-canvas);
  --paper: var(--rs-paper);
  --cream: var(--rs-canvas);
  --jade: var(--rs-accent);
  --jade-dark: var(--rs-accent-strong);
  --jade-pale: var(--rs-accent-soft);
  --navy: var(--rs-dark);
  --blue: var(--rs-brand);
  --orange: var(--rs-signal);
  --warm: var(--rs-canvas);
  --paper-white: var(--rs-paper);
  --mint-field: var(--rs-accent-soft);
  --mint-bright: var(--rs-brand);
  --emerald: var(--rs-accent);
  --black: var(--rs-dark);
  --editor-line: rgba(29, 29, 31, 0.44);
  --demo-dark: var(--rs-dark);
  --demo-panel: var(--rs-dark-surface);
  --demo-panel-2: var(--rs-dark-raised);
  --demo-mint: #8b9de8;
  --demo-warm: var(--rs-paper-muted);
  --demo-paper: var(--rs-paper);

  --radius-sm: var(--rs-radius-sm);
  --radius-md: var(--rs-radius-lg);
  --radius-lg: var(--rs-radius-xl);
}

html {
  background: var(--rs-canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--rs-canvas);
  color: var(--rs-ink);
  font-family:
    "Pretendard",
    -apple-system,
    BlinkMacSystemFont,
    "SF Pro Text",
    "Segoe UI",
    sans-serif;
}

p,
li,
figcaption,
blockquote {
  text-wrap: pretty;
}

h1,
h2,
h3 {
  color: var(--rs-ink);
  text-wrap: balance;
}

::selection {
  background: rgba(85, 112, 217, 0.22);
  color: var(--rs-ink);
}

.skip-link {
  border-radius: var(--rs-radius-sm);
  background: var(--rs-ink);
  color: #fff;
}

.eyebrow {
  color: var(--rs-accent);
}

.eyebrow-light {
  color: #c4ccf5;
}

.button {
  border-radius: var(--rs-radius-sm);
  white-space: nowrap;
  word-break: keep-all;
  overflow-wrap: normal;
  transition-property: background-color, border-color, color, box-shadow;
  transition-duration: 150ms;
  transition-timing-function: ease-out;
}

.button:hover {
  transform: none;
}

.button:active {
  scale: 0.96;
}

.button-primary,
.hero .button-primary {
  background: var(--rs-action);
  color: #fff;
  box-shadow: var(--rs-shadow-border);
}

.button-primary:hover {
  background: var(--rs-accent-strong);
  box-shadow: var(--rs-shadow-border-hover);
}

.button-secondary,
.hero .button-secondary {
  border-color: transparent;
  background: var(--rs-surface);
  color: var(--rs-ink);
  box-shadow: var(--rs-shadow-border);
}

.button-secondary:hover {
  border-color: transparent;
  color: var(--rs-accent-strong);
  box-shadow: var(--rs-shadow-border-hover);
}

.button-light {
  background: #fff;
  color: var(--rs-accent-strong);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.28);
}

.final-cta .button-light {
  background: #fff;
  color: #263b8f;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.72),
    0 12px 30px rgba(24, 39, 99, 0.18);
}

.final-cta .button-light:hover {
  background: #f2f4ff;
  color: #182d7b;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.86),
    0 16px 36px rgba(24, 39, 99, 0.28);
}

.final-cta .button-light:focus-visible {
  outline-color: rgba(255, 255, 255, 0.92);
}

.button:focus-visible,
.nav-menu a:focus-visible,
.lang-toggle:focus-visible,
.lang-option:focus-visible,
.nav-toggle:focus-visible,
.tab-note:focus-visible,
.play-button:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(85, 112, 217, 0.34);
  outline-offset: 3px;
}

/* Brand */
.brand {
  gap: 9px;
}

.brand-mark-wrap {
  width: 34px;
  height: 34px;
  overflow: visible;
  border-radius: 0;
}

.brand-mark-wrap img {
  width: 30px;
  height: 30px;
  object-fit: contain;
}

.brand-name {
  position: relative;
  top: 1px;
  font-family:
    "Avenir Next",
    "SF Pro Display",
    "Pretendard",
    sans-serif;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1;
}

/* Header */
.site-header {
  border-bottom-color: var(--rs-border);
  background: rgba(245, 245, 247, 0.9);
  color: var(--rs-ink);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px) saturate(135%);
}

.nav-menu > a:not(.nav-cta),
.lang-toggle {
  color: var(--rs-ink-muted);
  word-break: keep-all;
  overflow-wrap: normal;
}

.nav-menu > a:not(.nav-cta):hover,
.lang-toggle:hover {
  color: var(--rs-accent);
}

.nav-cta {
  border-radius: var(--rs-radius-sm);
  background: var(--rs-action);
  color: #fff;
  box-shadow: var(--rs-shadow-border);
  transition-property: background-color, box-shadow;
  transition-duration: 150ms;
  transition-timing-function: ease-out;
}

.spring-control {
  transform-origin: center;
}

.spring-control.is-springing {
  will-change: translate, scale;
}

.nav-cta:hover {
  background: var(--rs-accent-strong);
  box-shadow: var(--rs-shadow-border-hover);
}

.nav-cta:active {
  scale: 0.96;
}

.site-header .nav-menu > a.nav-cta {
  border-color: transparent;
  background: var(--rs-action);
  color: #fff;
  box-shadow: var(--rs-shadow-border);
}

.site-header .nav-menu > a.nav-cta:hover {
  background: var(--rs-accent-strong);
  color: #fff;
  box-shadow: var(--rs-shadow-border-hover);
}

.lang-dropdown {
  border-color: transparent;
  border-radius: var(--rs-radius-md);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--rs-shadow-float);
}

.lang-option:hover,
.lang-option.is-active {
  background: var(--rs-accent-soft);
  color: var(--rs-accent-strong);
}

/* Hero */
.hero {
  border-bottom: 1px solid var(--rs-border);
  background: var(--rs-canvas);
}

.hero .button-primary {
  background: var(--rs-action);
  color: #fff;
}

.hero .button-primary:hover {
  background: var(--rs-accent-strong);
  color: #fff;
}

.hero .button-secondary {
  border-color: transparent;
  background: var(--rs-surface);
  color: var(--rs-ink);
  box-shadow: var(--rs-shadow-border);
}

.hero .button-secondary:hover {
  border-color: transparent;
  background: var(--rs-surface);
  color: var(--rs-accent-strong);
  box-shadow: var(--rs-shadow-border-hover);
}

.hero-intro {
  color: var(--rs-ink);
}

.hero-intro h1 {
  color: var(--rs-ink);
  letter-spacing: -0.055em;
}

.hero-intro h1 span {
  color: var(--rs-brand);
}

.hero-lede {
  color: var(--rs-ink-muted);
}

.hero-visual-shell,
.hero-product-frame {
  background: var(--rs-surface);
}

.hero-product-frame {
  border-top: 1px solid var(--rs-border);
}

.hero-device-stage {
  background: var(--rs-surface);
}

.hero-device-caption > span,
.result-device-card .hero-device-caption > .hero-result-brand,
.hero-transform-mark,
.hero-transform-brand,
.hero-transform-brand strong {
  color: var(--rs-accent);
}

.hero-device-caption > strong {
  color: var(--rs-ink);
}

.hero-device-caption small {
  color: var(--rs-ink-subtle);
}

.hero-transform-mark .hero-transform-rule {
  background: var(--rs-accent-border);
}

.tablet-device,
.demo-tablet-device,
.hero-live-editor-device {
  background: #171719;
  box-shadow:
    0 0 0 1px rgba(0, 0, 0, 0.18),
    0 26px 70px rgba(29, 29, 31, 0.18),
    inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.tablet-screen,
.source-tablet-screen,
.result-editor.app-editor-tablet {
  background: var(--rs-canvas);
}

.source-tablet-status,
.result-editor.app-editor-tablet .app-statusbar-tablet {
  background: var(--rs-canvas);
  color: var(--rs-ink);
}

.app-status-left i,
.result-editor.app-editor-tablet .app-status-date {
  color: var(--rs-ink-subtle);
}

.document-viewer-bar,
.result-editor.app-editor-tablet .app-topbar {
  border-color: var(--rs-border);
  background: rgba(255, 255, 255, 0.82);
  color: var(--rs-ink);
  backdrop-filter: blur(18px) saturate(120%);
}

.document-viewer-page,
.mobile-score-page,
.demo-page-preview {
  background: #fff;
}

.source-tablet-screen::after {
  background: rgba(245, 245, 247, 0.18);
}

.source-readonly-notice {
  border-color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.92);
  color: var(--rs-ink);
  box-shadow:
    0 0 0 1px rgba(60, 60, 67, 0.08),
    0 24px 54px rgba(29, 29, 31, 0.18);
}

.source-readonly-notice .source-readonly-warning {
  fill: var(--rs-signal);
  filter: drop-shadow(0 9px 15px rgba(217, 87, 50, 0.2));
}

.source-readonly-notice .source-readonly-kind {
  color: var(--rs-signal);
}

.source-readonly-notice strong {
  color: var(--rs-ink);
}

.source-readonly-notice span:last-child {
  color: var(--rs-ink-subtle);
}

.source-readonly-result {
  border-top-color: var(--rs-accent-border);
}

.source-readonly-notice .source-readonly-brand,
.source-readonly-result > span:last-child {
  color: var(--rs-accent);
}

.source-readonly-notice .source-readonly-brand img,
.hero-transform-brand img {
  object-fit: contain;
}

.source-readonly-cross {
  background: rgba(29, 29, 31, 0.9);
  box-shadow: 0 9px 28px rgba(29, 29, 31, 0.2);
}

.source-readonly-cross span {
  color: var(--rs-ink);
}

.source-readonly-cross svg path:last-child {
  stroke: var(--rs-signal);
}

/* Live editor: the app chrome is neutral, actions carry ReScore Blue. */
.result-editor.app-editor-tablet .app-workspace-spacer {
  background: var(--rs-surface-muted);
}

.result-editor.app-editor-tablet .mobile-demo-lines,
.result-editor.app-editor-tablet .mobile-demo-lines::before,
.result-editor.app-editor-tablet .mobile-demo-lines::after,
.result-editor.app-editor-tablet .mobile-demo-measure {
  border-color: rgba(29, 29, 31, 0.44);
}

.result-editor.app-editor-tablet .mobile-demo-lines::before,
.result-editor.app-editor-tablet .mobile-demo-lines::after {
  background: rgba(29, 29, 31, 0.44);
}

.result-editor.app-editor-tablet .mobile-demo-signature,
.result-editor.app-editor-tablet .mobile-demo-note,
.result-editor.app-editor-tablet .mobile-demo-measure-number {
  color: var(--rs-ink);
}

.result-editor.app-editor-tablet .mobile-demo-note {
  text-shadow:
    -1.45px 0 #fff,
    1.45px 0 #fff,
    0 -1.45px #fff,
    0 1.45px #fff;
}

.result-editor.app-editor-tablet .mobile-demo-note.is-selected::before {
  border-color: var(--rs-accent);
  background: var(--rs-accent-soft);
}

.result-editor.app-editor-tablet .mobile-demo-note.is-string-mode::before {
  border-color: var(--rs-signal);
  background: var(--rs-signal-soft);
}

.result-editor.app-editor-tablet .playback-toolbar,
.hero-live-editor-device .result-editor.app-editor-tablet .playback-toolbar {
  border-color: var(--rs-border);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 0 0 1px rgba(60, 60, 67, 0.08);
  backdrop-filter: blur(18px) saturate(125%);
}

.result-editor.app-editor-tablet .history-tools button,
.result-editor.app-editor-tablet .bpm-tools,
.result-editor.app-editor-tablet .transpose-tools,
.result-editor.app-editor-tablet .metronome-button {
  background: var(--rs-surface-muted);
  color: var(--rs-ink-muted);
}

.result-editor.app-editor-tablet .history-tools button {
  border-radius: var(--rs-radius-sm);
}

.result-editor.app-editor-tablet .history-tools button:disabled {
  background: var(--rs-canvas);
  color: #aeaeb2;
}

.result-editor.app-editor-tablet .bpm-tools strong {
  color: var(--rs-accent);
}

.result-editor.app-editor-tablet .transpose-tools > span {
  color: var(--rs-ink-subtle);
}

.result-editor.app-editor-tablet .metronome-volume input {
  accent-color: var(--rs-accent);
}

.result-editor.app-editor-tablet .metronome-button {
  border-color: var(--rs-accent);
  background: #fff;
  color: var(--rs-accent);
}

.result-editor.app-editor-tablet .metronome-button.is-active {
  background: var(--rs-accent-soft);
}

.result-editor.app-editor-tablet .play-button {
  background: var(--rs-action);
  color: #fff;
  transition-property: scale, background-color;
  transition-duration: 150ms;
  transition-timing-function: ease-out;
}

.result-editor.app-editor-tablet .play-button:active {
  scale: 0.96;
}

.result-editor.app-editor-tablet .play-button.is-playing {
  background: var(--rs-accent-strong);
}

.demo-onboarding-card {
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(29, 29, 31, 0.94);
  color: #fff;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 12px 32px rgba(29, 29, 31, 0.2);
}

.demo-onboarding-card small {
  color: #ffb49b;
}

.demo-onboarding-card span {
  color: rgba(255, 255, 255, 0.72);
}

.demo-onboarding-beacon {
  border-color: var(--rs-signal);
  box-shadow:
    0 0 0 3px rgba(255, 255, 255, 0.94),
    0 0 0 4px rgba(217, 87, 50, 0.18);
}

.result-editor.app-editor-tablet .mobile-demo-note.is-tutorial-target.is-selected::before,
.result-editor.app-editor-tablet .transpose-tools button.is-tutorial-target {
  border-color: var(--rs-signal);
  background: var(--rs-signal-soft);
  color: #a23d21;
}

.demo-onboarding[data-step="holdReady"] .demo-onboarding-card,
.demo-onboarding.is-hold-ready .demo-onboarding-card {
  border-color: rgba(217, 87, 50, 0.72);
  box-shadow:
    0 0 0 2px rgba(217, 87, 50, 0.2),
    0 12px 32px rgba(29, 29, 31, 0.2);
}

@keyframes demo-beacon-pulse {
  0% {
    box-shadow:
      0 0 0 3px rgba(255, 255, 255, 0.94),
      0 0 0 4px rgba(217, 87, 50, 0.18);
  }
  70%,
  100% {
    box-shadow:
      0 0 0 3px rgba(255, 255, 255, 0.94),
      0 0 0 14px rgba(217, 87, 50, 0);
  }
}

.demo-transpose-dialog {
  border-color: transparent;
  border-radius: var(--rs-radius-lg);
  background: var(--rs-surface);
  color: var(--rs-ink);
  box-shadow: var(--rs-shadow-float);
}

.demo-dialog-mark {
  background: var(--rs-signal-soft);
  color: var(--rs-signal);
}

.demo-dialog-actions button {
  border-radius: var(--rs-radius-sm);
}

.demo-dialog-actions button:last-child {
  background: var(--rs-action);
  color: #fff;
}

/* Supported file paths */
.conversion {
  border-top: 1px solid var(--rs-border);
  border-bottom: 1px solid var(--rs-border);
  background: var(--rs-surface);
}

.import-paths {
  overflow: hidden;
  border: 0;
  border-radius: var(--rs-radius-lg);
  background: var(--rs-canvas);
  box-shadow: var(--rs-shadow-border);
}

.import-path {
  border-color: var(--rs-border);
  background: transparent;
}

.path-icon {
  border-color: var(--rs-accent-border);
  background: var(--rs-accent-soft);
  color: var(--rs-accent);
}

.path-copy h3,
.import-path h3 {
  color: var(--rs-ink);
}

.path-copy p,
.import-path p,
.scope-note {
  color: var(--rs-ink-muted);
}

.path-result {
  border-color: var(--rs-accent-border);
  background: var(--rs-accent-soft);
  color: var(--rs-accent-strong);
}

/* Actual app */
.product {
  background: var(--rs-canvas);
}

.section-intro h2,
.product-proof-copy h3,
.faq-heading h2 {
  color: var(--rs-ink);
}

.section-intro h2 span,
.product-proof-kicker {
  color: var(--rs-accent);
}

.product-signature {
  max-width: none;
  font-size: clamp(10px, 1vw, 12px);
  letter-spacing: 0.08em;
  line-height: 1.5;
  word-break: keep-all;
}

.section-intro > p:last-child,
.product-proof-copy > p,
.real-app-shot figcaption p {
  color: var(--rs-ink-muted);
}

.product-proof {
  grid-template-columns: minmax(300px, 0.88fr) repeat(2, minmax(260px, 1fr));
  gap: clamp(28px, 3.6vw, 52px);
  border-color: var(--rs-border);
}

.product-proof-copy {
  min-width: 0;
  align-self: start;
  overflow: hidden;
  padding: clamp(24px, 2.6vw, 34px);
  border-radius: var(--rs-radius-lg);
  background: var(--rs-surface);
  box-shadow: var(--rs-shadow-border);
}

.product-proof-copy h3 {
  max-width: 13ch;
  margin-top: 14px;
  font-size: clamp(1.75rem, 2.25vw, 2.35rem);
  line-height: 1.2;
  word-break: keep-all;
  overflow-wrap: normal;
}

html:lang(ja) .product-proof-copy h3,
html:lang(zh-TW) .product-proof-copy h3,
html:lang(zh-CN) .product-proof-copy h3 {
  word-break: normal;
  overflow-wrap: anywhere;
}

.product-proof-copy > p:not(.product-proof-kicker) {
  max-width: 32em;
  margin-top: 16px;
}

.brand-process {
  display: grid;
  min-width: 0;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.brand-process li {
  display: grid;
  min-width: 0;
  padding: 13px 0;
  border-top: 1px solid var(--rs-border);
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.brand-process li:last-child {
  border-bottom: 1px solid var(--rs-border);
}

.brand-process li > span {
  padding-top: 2px;
  color: var(--rs-accent);
  font-size: 10px;
  font-weight: 780;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  line-height: 1.4;
}

.brand-process li > div {
  min-width: 0;
}

.brand-process b,
.brand-process small {
  display: block;
}

.brand-process b {
  color: var(--rs-ink);
  font-size: 12px;
  font-weight: 760;
  letter-spacing: 0.02em;
  line-height: 1.35;
}

.brand-process small {
  margin-top: 3px;
  color: var(--rs-ink-muted);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
  text-wrap: pretty;
}

.product-proof-copy .format-pills {
  display: flex;
  min-width: 0;
  max-width: 100%;
  margin-top: 22px;
  flex-wrap: wrap;
  gap: 6px;
}

.product-proof-copy .format-pills span {
  max-width: 100%;
  flex: 0 0 auto;
  white-space: nowrap;
}

.format-pills span {
  border-color: var(--rs-accent-border);
  background: var(--rs-accent-soft);
  color: var(--rs-accent-strong);
}

.phone-device {
  background: #171719;
  box-shadow: var(--rs-shadow-float);
}

.phone-screen {
  background: var(--rs-canvas);
}

.real-app-shot img {
  outline: 1px solid rgba(0, 0, 0, 0.1);
  outline-offset: -1px;
}

.real-app-shot figcaption {
  border-color: var(--rs-border);
}

.real-app-shot figcaption > span {
  color: var(--rs-accent);
}

.real-app-shot figcaption strong {
  color: var(--rs-ink);
}

@media (min-width: 701px) and (max-width: 1080px) {
  .product-proof {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-proof-copy {
    grid-column: 1 / -1;
  }

  .real-app-shot:nth-child(3) {
    margin-top: 0;
  }
}

/* Model proof */
.model-note {
  background: var(--rs-dark);
  color: var(--rs-dark-text);
}

.model-note h2 {
  color: var(--rs-dark-text);
}

.model-note h2 span,
.metric-value strong {
  color: #aeb9ef;
}

.model-copy p,
.metric-context,
.model-caption {
  color: var(--rs-dark-text-muted);
}

.model-data,
.metric-row,
.model-note .model-grid {
  border-color: rgba(235, 235, 245, 0.14);
}

/* FAQ */
.faq {
  background: var(--rs-surface);
}

.faq-list {
  border-color: var(--rs-border);
}

.faq details {
  border-color: var(--rs-border);
}

.faq summary {
  color: var(--rs-ink);
}

.faq summary::after {
  color: var(--rs-accent);
}

.faq details p {
  color: var(--rs-ink-muted);
}

/* Final CTA and footer */
.final-cta {
  background: var(--rs-brand);
  color: #fff;
}

.final-cta h2,
.final-cta h2 span {
  color: #fff;
}

.final-cta .eyebrow {
  color: rgba(255, 255, 255, 0.72);
}

.site-footer {
  background: var(--rs-dark);
  color: var(--rs-dark-text);
}

.site-footer .brand-mark-wrap img {
  filter: brightness(0) invert(1);
}

.site-footer .brand-name,
.site-footer a {
  color: var(--rs-dark-text);
}

.footer-brand p,
.footer-contact,
.footer-contact p,
.footer-bottom {
  color: var(--rs-dark-text-muted);
}

.footer-inner,
.footer-bottom {
  border-color: rgba(235, 235, 245, 0.14);
}

/* Legal pages */
.legal-body {
  background: var(--rs-canvas);
}

.legal-body .site-header {
  background: rgba(245, 245, 247, 0.92);
}

.legal-nav a {
  color: var(--rs-ink-muted);
}

.legal-nav a:hover {
  color: var(--rs-accent);
}

.legal-page {
  padding: clamp(40px, 7vw, 84px) 0 clamp(72px, 10vw, 120px);
  background: var(--rs-canvas);
}

.legal-shell {
  width: min(calc(100% - 48px), 920px);
  padding: clamp(28px, 5vw, 64px);
  border-radius: var(--rs-radius-xl);
  background: var(--rs-surface);
  box-shadow: var(--rs-shadow-border);
}

.legal-back,
.legal-kicker,
.legal-shell a {
  color: var(--rs-accent);
}

.legal-shell h1,
.legal-shell h2,
.legal-shell h3,
.legal-shell strong {
  color: var(--rs-ink);
}

.legal-shell > p,
.legal-shell li,
.legal-meta {
  color: var(--rs-ink-muted);
}

.legal-shell h2 {
  border-top-color: var(--rs-border);
}

.legal-table-wide,
.legal-table-compact {
  border-color: var(--rs-border);
  background: var(--rs-surface);
}

.legal-table-wide th,
.legal-table-compact th {
  background: var(--rs-surface-muted);
  color: var(--rs-ink);
}

.legal-table-wide td,
.legal-table-wide th,
.legal-table-compact td,
.legal-table-compact th {
  border-color: var(--rs-border);
}

.legal-shell hr {
  border-color: var(--rs-border);
}

/* Narrow navigation stays complete without broken Korean words. */
@media (max-width: 1020px) {
  .site-header .nav-menu > a,
  .site-header .nav-menu > a:not(.nav-cta),
  .site-header .nav-menu .lang-toggle {
    color: var(--rs-ink);
    white-space: nowrap;
    word-break: keep-all;
  }

  .site-header .nav-menu > a:not(.nav-cta):hover,
  .site-header .lang-toggle:hover {
    background: var(--rs-accent-soft);
    color: var(--rs-accent);
  }

  .site-header .nav-menu > a.nav-cta {
    background: var(--rs-action);
    color: #fff;
  }
}

@media (max-width: 700px) {
  .shell {
    width: min(calc(100% - 32px), var(--shell));
  }

  .hero-intro h1 {
    letter-spacing: -0.05em;
  }

  .hero-device-stage {
    background: var(--rs-surface);
  }

  .product-proof {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .product-proof-copy {
    grid-column: auto;
    width: 100%;
    padding: 24px;
  }

  .product-proof-copy h3 {
    max-width: 14ch;
    font-size: clamp(1.75rem, 8vw, 2.1rem);
  }

  .brand-process {
    margin-top: 22px;
  }

  .real-app-shot,
  .real-app-shot:nth-child(3) {
    min-width: 0;
    margin-top: 0;
  }

  .legal-shell {
    width: min(calc(100% - 24px), 920px);
    padding: 28px 20px 36px;
    border-radius: var(--rs-radius-lg);
  }

  .legal-table-wide,
  .legal-table-compact {
    font-size: 13px;
  }
}

/* English and Thai labels need real word space on phone-width headers. */
@media (min-width: 360px) and (max-width: 520px) {
  html:lang(en),
  html:lang(th) {
    --header-height: 150px;
  }

  html:lang(en) .site-header .header-inner,
  html:lang(th) .site-header .header-inner {
    grid-template-rows: 54px 96px;
  }

  html:lang(en) .site-header .nav-menu,
  html:lang(en) .site-header .nav-menu.is-open,
  html:lang(th) .site-header .nav-menu,
  html:lang(th) .site-header .nav-menu.is-open {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-template-rows: repeat(2, 46px);
    gap: 2px;
  }

  html:lang(en) .site-header .nav-menu > a,
  html:lang(en) .site-header .nav-menu .lang-toggle,
  html:lang(th) .site-header .nav-menu > a,
  html:lang(th) .site-header .nav-menu .lang-toggle {
    white-space: normal;
  }
}

@media (max-width: 359px) {
  :root {
    --header-height: 150px;
  }

  .site-header .header-inner {
    grid-template-rows: 54px 96px;
  }

  .site-header .nav-menu,
  .site-header .nav-menu.is-open {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-template-rows: repeat(2, 46px);
    gap: 2px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .button,
  .nav-cta,
  .result-editor.app-editor-tablet .play-button {
    transition: none;
  }
}

/* 2026-07-31a — original inward-facing 3D device renders with exact app screens. */
.product-proof {
  grid-template-columns: minmax(280px, 0.68fr) minmax(0, 1.32fr);
  gap: clamp(48px, 6vw, 92px);
  align-items: center;
  margin-top: clamp(56px, 6vw, 82px);
  padding-top: clamp(42px, 5vw, 64px);
}

.product-proof-copy {
  align-self: center;
  overflow: visible;
  padding: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.product-proof-copy h3 {
  max-width: 11ch;
  margin: 0;
  font-size: clamp(2.15rem, 3.35vw, 3.35rem);
  letter-spacing: -0.045em;
  line-height: 1.12;
  text-wrap: balance;
}

.product-proof-copy > p:not(.product-proof-kicker) {
  max-width: 28em;
  margin-top: 20px;
  font-size: clamp(14px, 1.15vw, 16px);
  line-height: 1.7;
  text-wrap: pretty;
}

.brand-process {
  display: grid;
  margin-top: clamp(30px, 3vw, 42px);
  border-bottom: 1px solid var(--rs-border);
}

.brand-process li {
  display: grid;
  padding: 17px 0;
  border-top: 1px solid var(--rs-border);
  grid-template-columns: minmax(104px, 0.38fr) minmax(0, 1fr);
  gap: 18px;
  align-items: baseline;
}

.brand-process li:last-child {
  border-bottom: 0;
}

.brand-process b {
  color: var(--rs-accent);
  font-size: 12px;
  font-weight: 780;
  letter-spacing: 0;
  line-height: 1.4;
}

.brand-process small {
  margin: 0;
  color: var(--rs-ink-muted);
  font-size: 13px;
  font-weight: 540;
  line-height: 1.55;
  text-wrap: pretty;
}

.product-device-scene {
  display: grid;
  min-width: 0;
  gap: 18px;
  margin: 0;
}

.product-scene-surface {
  position: relative;
  min-height: 0;
  aspect-ratio: 1.04 / 1;
  overflow: hidden;
  border-radius: clamp(30px, 4vw, 48px);
  background:
    radial-gradient(circle at 26% 17%, rgba(255, 255, 255, 0.96), transparent 34%),
    linear-gradient(145deg, #eef0f8 0%, #e1e5f3 52%, #d7dced 100%);
  box-shadow:
    inset 0 0 0 1px rgba(24, 31, 52, 0.09),
    0 22px 54px rgba(31, 39, 67, 0.09);
  perspective: 1400px;
  perspective-origin: 50% 42%;
  isolation: isolate;
}

.product-scene-surface::after {
  position: absolute;
  z-index: -1;
  right: 7%;
  bottom: 4%;
  left: 7%;
  height: 12%;
  border-radius: 50%;
  background: rgba(30, 37, 62, 0.22);
  content: "";
  filter: blur(28px);
  transform: rotate(-4deg);
}

.product-scene-halo {
  position: absolute;
  z-index: -2;
  top: 15%;
  left: 12%;
  width: 76%;
  height: 60%;
  border-radius: 50%;
  background: rgba(85, 112, 217, 0.18);
  filter: blur(54px);
}

.product-scene-pair {
  position: absolute;
  z-index: 1;
  inset: 0 3%;
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: center;
  gap: clamp(10px, 2.2vw, 32px);
}

.product-scene-phone {
  position: relative;
  flex: 0 0 auto;
  width: auto;
  height: 90%;
  aspect-ratio: 1033 / 2070;
  transform-style: preserve-3d;
  transform-origin: 50% 50%;
}

.product-scene-phone-light {
  z-index: 2;
  inset: auto;
  transform: translateY(-2.5%) translateZ(58px);
}

.product-scene-phone-dark {
  z-index: 1;
  inset: auto;
  transform: translateY(3.5%) translateZ(3px);
}

.product-hardware-mockup {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter:
    drop-shadow(0 34px 30px rgba(22, 27, 47, 0.2))
    drop-shadow(0 10px 10px rgba(22, 27, 47, 0.13));
}

.source-device-card,
.result-device-card {
  perspective: none;
}

.device-3d-shell {
  position: relative;
  width: min(88vw, 760px);
  aspect-ratio: 1489 / 1878;
  margin-inline: auto;
}

.device-3d-shell::after {
  position: absolute;
  z-index: -2;
  right: 5%;
  bottom: -12px;
  left: 6%;
  height: clamp(18px, 3.4vw, 34px);
  border-radius: 50%;
  background: rgba(20, 25, 43, 0.18);
  content: "";
  filter: blur(20px);
  pointer-events: none;
  transform: none;
}

.hero-product-frame .device-frame-asset {
  position: absolute;
  z-index: 3;
  inset: 0;
  display: block;
  width: 100%;
  max-width: none;
  height: 100%;
  max-height: none;
  object-fit: contain;
  pointer-events: none;
  filter: drop-shadow(0 24px 30px rgba(24, 29, 48, 0.14));
}

.hero-product-frame .device-frame-asset-mobile {
  display: none;
}

.hero-product-frame .device-frame-asset-tablet {
  filter: none;
}

.device-3d-shell > .tablet-device,
.device-3d-shell > .demo-tablet-device {
  position: absolute;
  z-index: 2;
  top: calc(79 / 1878 * 100%);
  left: calc(145 / 1489 * 100%);
  width: calc(1176 / 1489 * 100%);
  height: calc(1592 / 1878 * 100%);
  max-width: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  border: 0;
  border-radius: calc(69 / 1489 * 100%);
  background: transparent;
  box-shadow: none;
}

.device-3d-shell .tablet-screen,
.device-3d-shell .result-editor.app-editor-tablet {
  width: 100%;
  height: 100%;
  aspect-ratio: auto;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.device-3d-shell .source-tablet-screen {
  display: grid;
}

.product-device-scene figcaption {
  display: grid;
  padding-top: 17px;
  border-top: 1px solid var(--rs-border);
  grid-template-columns: minmax(88px, auto) minmax(0, 1fr);
  gap: 18px;
  align-items: baseline;
}

.product-device-scene figcaption > span {
  color: var(--rs-accent);
  font-size: 10px;
  font-weight: 820;
  letter-spacing: 0.1em;
  line-height: 1.4;
}

.product-device-scene figcaption strong {
  color: var(--rs-ink);
  font-size: 14px;
  font-weight: 760;
  line-height: 1.45;
}

.product-device-scene figcaption p {
  margin-top: 3px;
  color: var(--rs-ink-muted);
  font-size: 12px;
  line-height: 1.55;
  text-wrap: pretty;
}

.result-editor.app-editor-tablet .mobile-demo-signature {
  top: 14%;
  left: 1.5%;
  display: flex;
  width: 13.5%;
  height: 52%;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  color: #141a17;
  font-family: "ReScore Leland", sans-serif;
  font-size: clamp(18px, 5.6cqw, 30px);
  font-weight: 400;
  letter-spacing: 0;
  line-height: 0.66;
  text-align: center;
}

.result-editor.app-editor-tablet .mobile-demo-signature b {
  display: block;
  width: auto;
  height: auto;
  flex: 0 0 auto;
  font: inherit;
  line-height: inherit;
}

.result-editor.app-editor-tablet .mobile-demo-signature b + b {
  margin-top: -0.08em;
}

.demo-onboarding.is-note-target .demo-onboarding-beacon {
  opacity: 0;
  animation: none;
}

.result-editor.app-editor-tablet .mobile-demo-note.is-tutorial-target.is-selected::before {
  width: 24px;
  height: 24px;
  border: 2px solid #5b55e7;
  background: rgba(91, 85, 231, 0.12);
  box-shadow: none;
  outline: 0;
}

.result-editor.app-editor-tablet .mobile-demo-note.is-tutorial-target.is-string-mode::before {
  border-color: #d87926;
  background: rgba(255, 212, 150, 0.28);
}

@media (max-width: 1300px) {
  .product-proof {
    grid-template-columns: minmax(0, 1fr);
  }

  .product-proof-copy {
    width: min(100%, 680px);
  }

  .product-proof-copy h3 {
    max-width: 13ch;
  }

  .product-device-scene {
    width: 100%;
  }

  .product-scene-surface {
    height: clamp(620px, 61vw, 740px);
    aspect-ratio: auto;
  }

  .product-scene-phone {
    width: auto;
    height: 88%;
  }
}

@media (max-width: 700px) {
  .product-proof {
    gap: 38px;
    margin-top: 44px;
    padding-top: 38px;
  }

  .product-proof-copy {
    padding: 0;
  }

  .product-proof-copy h3 {
    max-width: 12ch;
    font-size: clamp(2rem, 10vw, 2.65rem);
  }

  .brand-process li {
    grid-template-columns: minmax(94px, 0.38fr) minmax(0, 1fr);
    gap: 12px;
  }

  .product-scene-surface {
    height: auto;
    min-height: 0;
    aspect-ratio: 1.04 / 1;
    border-radius: 28px;
  }

  .product-scene-phone {
    width: auto;
    height: 88%;
  }

  .source-device-card,
  .result-device-card {
    width: 100vw;
  }

  .device-3d-shell {
    width: min(92vw, 390px);
    aspect-ratio: 423 / 882;
    margin-inline: auto;
  }

  .hero-product-frame .device-frame-asset-tablet {
    display: none;
  }

  .hero-product-frame .device-frame-asset-mobile {
    display: block;
  }

  .device-3d-shell > .tablet-device,
  .device-3d-shell > .demo-tablet-device {
    top: calc(15 / 882 * 100%);
    left: calc(15 / 423 * 100%);
    width: calc(393 / 423 * 100%);
    height: calc(852 / 882 * 100%);
    border-radius: calc(55 / 423 * 100%);
  }

  .source-tablet-device::before,
  .hero-live-editor-device::before {
    display: none;
  }

  .device-3d-shell-source .source-tablet-screen .document-viewer-page {
    overflow: hidden;
  }

  .device-3d-shell-source .source-tablet-screen .document-viewer-page img {
    width: 100%;
    max-width: 100%;
    height: auto;
    transform: none;
  }

  .product-device-scene figcaption {
    grid-template-columns: minmax(74px, auto) minmax(0, 1fr);
    gap: 12px;
  }
}

/* Tablet-sized browsers keep the tablet shell, but use the same readable
   two-measure systems as the native compact editor. */
@media (min-width: 641px) and (max-width: 900px) {
  .device-3d-shell {
    width: min(96vw, 800px);
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .mobile-score-page,
  .hero-live-editor-device .result-editor.app-editor-tablet .demo-page-preview {
    grid-template-rows: repeat(4, minmax(0, 1fr));
    padding: 10px 26px 6px 38px;
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .mobile-demo-pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .mobile-demo-system {
    padding-block: 7px 9px;
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .mobile-demo-measure-number {
    left: -24px;
    font-size: 9px;
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .mobile-demo-note {
    width: 30px;
    height: 30px;
    margin: -15px 0 0 -15px;
    font-size: 13px;
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .mobile-demo-signature {
    left: 5px;
    width: 15%;
    font-size: 20px;
  }
}

@media (max-width: 420px) {
  .product-scene-pair {
    inset-inline: 2%;
    gap: 7px;
  }
}

/* The adjacent sheet and the settled sheet share one immutable box. Only the
   horizontal page track moves, so releasing a swipe cannot change notation size. */
.hero-live-editor-device .result-editor.app-editor-tablet .mobile-score-page,
.hero-live-editor-device .result-editor.app-editor-tablet .demo-page-preview {
  width: 100%;
  height: 100%;
  margin: 0;
  box-sizing: border-box;
  scale: 1;
  transform-origin: 0 0;
}

.hero-live-editor-device .result-editor.app-editor-tablet .demo-page-preview {
  top: 0;
  bottom: auto;
}

.hero-live-editor-device .result-editor.app-editor-tablet .mobile-demo-lines::before,
.hero-live-editor-device .result-editor.app-editor-tablet .mobile-demo-lines::after {
  bottom: auto;
}

@media (prefers-reduced-motion: reduce) {
  .product-scene-phone,
  .demo-onboarding.is-note-target .demo-onboarding-beacon {
    animation: none;
    transition: none;
  }
}

/* 2026-07-30q — the live editor follows the current native phone chrome.
   Mobile keeps the real 68px header and 66px floating transport, rather than
   shrinking tablet controls into a phone frame. */
.hero-live-editor-device .result-editor.app-editor-tablet .playback-toolbar {
  width: min(88%, 488px);
  grid-template-columns:
    minmax(76px, 88px)
    minmax(96px, 132px)
    minmax(76px, 88px)
    40px
    48px;
}

.result-editor.app-editor-tablet .history-tools {
  display: grid;
  width: 100%;
  height: clamp(30px, 7.4cqw, 40px);
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--rs-border);
  border-radius: 999px;
  background: var(--rs-surface-muted);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.result-editor.app-editor-tablet .history-tools button {
  display: grid;
  width: 100%;
  min-width: 0;
  height: 100%;
  place-items: center;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--rs-ink-muted);
}

.result-editor.app-editor-tablet .history-tools button:disabled {
  color: #a9b0bc;
  opacity: 0.44;
}

.result-editor.app-editor-tablet .history-tools svg {
  width: clamp(14px, 3.5cqw, 19px);
  height: clamp(14px, 3.5cqw, 19px);
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.result-editor.app-editor-tablet .app-topbar {
  padding-right: 194px;
}

.result-editor.app-editor-tablet .app-top-actions {
  width: auto;
  flex: 0 0 auto;
}

.result-editor.app-editor-tablet .app-top-actions span,
.result-editor.app-editor-tablet .app-top-actions span:last-child {
  display: grid;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
}

@media (max-width: 640px) {
  .hero-live-editor-device .result-editor.app-editor-tablet {
    aspect-ratio: 390 / 844;
    grid-template-rows: 5% 8% 12% minmax(0, 1fr) 15%;
  }

  .result-editor.app-editor-tablet .app-statusbar-tablet {
    padding: 7px 14px 0;
    font-size: 9px;
  }

  .result-editor.app-editor-tablet .app-status-signals,
  .result-editor.app-editor-tablet .app-status-icons {
    width: 54px;
    height: 12px;
  }

  .result-editor.app-editor-tablet .app-topbar {
    min-height: 0;
    padding: 7px 9px 7px 10px;
    overflow: visible;
    grid-template-columns: clamp(32px, 11.4cqw, 42px) minmax(0, 1fr) auto;
    gap: clamp(3px, 1.8cqw, 6px);
  }

  .result-editor.app-editor-tablet .app-back-button {
    width: clamp(31px, 11.4cqw, 38px);
    height: clamp(31px, 11.4cqw, 38px);
  }

  .result-editor.app-editor-tablet .app-score-title strong {
    display: flex;
    align-items: center;
    font-size: clamp(12px, 4.5cqw, 15px);
    font-weight: 650;
    line-height: 1.28;
    white-space: nowrap;
  }

  .result-editor.app-editor-tablet .app-score-title strong::after {
    content: "";
    width: 5px;
    height: 5px;
    margin: -3px 0 0 6px;
    border-right: 1.4px solid currentColor;
    border-bottom: 1.4px solid currentColor;
    opacity: 0.68;
    transform: rotate(45deg);
  }

  .result-editor.app-editor-tablet .app-score-title span {
    font-size: clamp(8px, 3cqw, 10px);
    line-height: 1.25;
    white-space: nowrap;
  }

  .result-editor.app-editor-tablet .app-top-actions {
    position: static;
    width: auto;
    flex: 0 0 auto;
    gap: clamp(2px, 1.2cqw, 4px);
    transform: none;
  }

  .result-editor.app-editor-tablet .app-top-actions span,
  .result-editor.app-editor-tablet .app-top-actions span:last-child {
    display: grid;
    width: clamp(31px, 11.4cqw, 38px);
    height: clamp(31px, 11.4cqw, 38px);
    flex-basis: auto;
  }

  .result-editor.app-editor-tablet .app-top-actions svg {
    width: clamp(14px, 5.1cqw, 17px);
    height: clamp(14px, 5.1cqw, 17px);
  }

  .result-editor.app-editor-tablet .app-workspace-spacer {
    min-height: 0;
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .mobile-score-page,
  .hero-live-editor-device .result-editor.app-editor-tablet .demo-page-preview {
    grid-template-rows: repeat(4, minmax(0, 1fr));
    padding: 8px 17px 5px 28px;
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .mobile-demo-system {
    padding-block: 5px 7px;
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .mobile-demo-note {
    width: 28px;
    height: 28px;
    margin: -14px 0 0 -14px;
    font-size: 11px;
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .mobile-demo-signature {
    left: 4px;
    width: 16%;
    font-size: 18px;
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .playback-toolbar {
    width: calc(100% - 4px);
    height: clamp(52px, 17cqw, 66px);
    align-self: start;
    justify-self: center;
    margin: 10px 2px 0;
    padding: 6px 4px;
    border-radius: clamp(24px, 7.2cqw, 28px);
    grid-template-columns:
      minmax(0, 1.3fr)
      minmax(0, 0.95fr)
      minmax(0, 1.3fr)
      clamp(38px, 11.3cqw, 44px)
      clamp(44px, 13.35cqw, 52px);
    gap: 4px;
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .history-tools,
  .hero-live-editor-device .result-editor.app-editor-tablet .bpm-tools,
  .hero-live-editor-device .result-editor.app-editor-tablet .transpose-tools {
    width: 100%;
    height: clamp(38px, 11.3cqw, 44px);
    align-self: center;
    border-radius: clamp(19px, 6.6cqw, 22px);
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .history-tools {
    border: 1px solid var(--rs-border);
    background: var(--rs-surface-muted);
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .history-tools button {
    height: clamp(38px, 11.3cqw, 44px);
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .bpm-tools {
    display: grid;
    cursor: ew-resize;
    grid-template-columns: minmax(0, 1fr);
    touch-action: none;
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .bpm-tools > button {
    display: none;
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .bpm-tools > .bpm-readout {
    display: grid;
    width: 100%;
    height: clamp(38px, 11.3cqw, 44px);
    place-content: center;
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .bpm-tools strong {
    font-size: 14px;
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .transpose-tools {
    position: relative;
    display: grid;
    padding-top: 7px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .transpose-tools > span {
    position: absolute;
    z-index: 2;
    top: 3px;
    right: 0;
    left: 0;
    display: block;
    width: auto;
    height: auto;
    padding: 0;
    text-align: center;
    pointer-events: none;
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .transpose-tools > span b {
    display: none;
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .transpose-tools button {
    height: clamp(32px, 11.1cqw, 37px);
    padding-top: 5px;
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .metronome-button {
    width: clamp(38px, 11.3cqw, 44px);
    height: clamp(38px, 11.3cqw, 44px);
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .play-button {
    width: clamp(44px, 13.35cqw, 52px);
    height: clamp(44px, 13.35cqw, 52px);
  }

  .hero-live-editor-device .result-editor.app-editor-tablet .play-button .play-icon {
    font-size: 17px;
    transform: translateX(1px);
  }
}

/* 2026-07-31y — compact status bars keep the time inside the curved safe
   area. Date text is intentionally omitted; Wi-Fi and battery use dedicated
   system-shaped SVGs so they stay crisp at every device scale. */
.source-tablet-status .app-status-signals,
.result-editor.app-editor-tablet .app-status-signals {
  display: inline-flex;
  width: auto;
  height: 14px;
  flex: 0 0 auto;
  align-items: center;
  gap: 3px;
}

.app-status-wifi-icon {
  display: block;
  width: 18px;
  height: 14px;
  flex: 0 0 auto;
  background: currentColor;
  -webkit-mask: url("../assets/images/wifi-system-mask.png?v=20260731a") center / contain no-repeat;
  mask: url("../assets/images/wifi-system-mask.png?v=20260731a") center / contain no-repeat;
}

.app-status-cellular {
  display: inline-flex;
  height: 5px;
  align-items: center;
  gap: 1.4px;
  opacity: 0.34;
}

.app-status-cellular i {
  display: block;
  width: 3.2px;
  height: 3.2px;
  border-radius: 1px;
  background: currentColor;
}

.app-status-battery-icon {
  display: block;
  width: 25px;
  height: 14px;
  overflow: visible;
}

@media (max-width: 640px) {
  .source-tablet-status,
  .result-editor.app-editor-tablet .app-statusbar-tablet {
    padding-right: 18px;
    padding-left: 24px;
  }

  .source-tablet-status .app-status-signals,
  .result-editor.app-editor-tablet .app-status-signals {
    width: auto;
    height: 12px;
    gap: 2px;
  }

  .app-status-wifi-icon {
    width: 15px;
    height: 12px;
  }

  .app-status-battery-icon {
    width: 24px;
    height: 12px;
  }
}

/* 2026-07-31z — screen curve follows the simulator hardware. Percentage
   border radii previously made the vertical corner twice as deep, exposing a
   pale wedge between the bezel and status bar. Match the 393x852 inner glass
   opening (58px physical corner radius) and paint the glass continuously. */
@media (max-width: 640px) {
  .device-3d-shell > .tablet-device,
  .device-3d-shell > .demo-tablet-device {
    border-radius: 14.75% / 6.8%;
    background: #eef2f0;
  }

  .device-3d-shell .source-tablet-screen,
  .device-3d-shell .result-editor.app-editor-tablet,
  .source-tablet-status,
  .result-editor.app-editor-tablet .app-statusbar-tablet {
    background: #eef2f0;
  }
}

@media (max-width: 380px) {
  .hero-live-editor-device .result-editor.app-editor-tablet .playback-toolbar {
    gap: 3px;
  }

  .result-editor.app-editor-tablet .app-top-actions {
    gap: clamp(2px, 1.1cqw, 3px);
  }
}

/* 2026-07-31h — clearer section rhythm, explicit import routes and model disclosure. */
.hero {
  border-bottom: 0;
  background: #f3f5fb;
}

.hero-visual-shell,
.hero-product-frame,
.hero-device-stage {
  background: var(--rs-surface);
}

.hero-product-frame {
  border-top: 1px solid var(--rs-border);
}

.conversion {
  padding-block: clamp(88px, 9vw, 132px);
  border-top: 1px solid rgba(85, 112, 217, 0.14);
  border-bottom: 1px solid rgba(85, 112, 217, 0.18);
  background: #e9edf9;
}

.file-support-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(0, 1.1fr);
  column-gap: clamp(64px, 8vw, 124px);
  align-items: start;
}

.file-support-copy {
  max-width: 560px;
}

.file-support-copy .eyebrow {
  margin: 0 0 22px;
}

.file-support-copy h2 {
  margin: 0;
  color: var(--rs-ink);
  font-size: clamp(2.45rem, 3.8vw, 3.85rem);
  font-weight: 820;
  letter-spacing: -0.05em;
  line-height: 1.08;
  text-wrap: balance;
}

.file-support-copy h2 span {
  color: var(--rs-accent);
}

.file-support-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(29, 29, 31, 0.34);
}

.file-support-list > div {
  display: grid;
  padding: clamp(24px, 2.4vw, 31px) 0;
  border-bottom: 1px solid rgba(29, 29, 31, 0.2);
  grid-template-columns: minmax(112px, 0.36fr) minmax(0, 1fr);
  gap: clamp(20px, 3vw, 44px);
  align-items: baseline;
}

.file-support-list dt,
.file-support-list dd {
  margin: 0;
}

.file-support-list dt {
  color: var(--rs-ink);
  font-size: clamp(15px, 1.2vw, 17px);
  font-weight: 760;
  letter-spacing: -0.02em;
  line-height: 1.45;
}

.file-support-list dd {
  color: var(--rs-ink-muted);
  font-size: clamp(15px, 1.15vw, 17px);
  font-weight: 540;
  line-height: 1.55;
  text-wrap: pretty;
}

.file-support-list .file-support-beta {
  border-bottom-color: rgba(85, 112, 217, 0.42);
}

.file-support-beta dt {
  color: var(--rs-accent-strong);
}

.file-support-beta dd {
  color: var(--rs-ink);
  font-weight: 680;
}

.product {
  border-top: 0;
  background: #f5f5f7;
}

.model-note .model-grid {
  align-items: start;
}

.model-copy h2 {
  max-width: 13ch;
}

.model-data > p {
  max-width: 43em;
}

.metric-value {
  display: grid;
  gap: 10px;
}

.metric-value > span {
  color: #c9d0f5;
  font-size: 12px;
  font-weight: 780;
  letter-spacing: 0.08em;
  line-height: 1.35;
  text-transform: uppercase;
}

.metric-context {
  max-width: 22em;
  padding-bottom: 5px;
  font-size: 13px;
  font-weight: 650;
  line-height: 1.6;
  word-break: keep-all;
  overflow-wrap: normal;
  text-wrap: pretty;
}

.model-data small {
  max-width: 46em;
  text-wrap: pretty;
}

html:lang(ko) .model-data > p,
html:lang(ko) .model-data small {
  word-break: keep-all;
  overflow-wrap: normal;
}

@media (max-width: 900px) {
  .file-support-layout {
    grid-template-columns: minmax(0, 1fr);
    row-gap: 48px;
  }

  .metric-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }
}

@media (max-width: 700px) {
  .conversion {
    padding-block: 72px 82px;
  }

  .file-support-layout {
    row-gap: 38px;
  }

  .file-support-copy .eyebrow {
    margin-bottom: 16px;
  }

  .file-support-copy h2 {
    max-width: 11ch;
    font-size: clamp(2.15rem, 9.8vw, 2.9rem);
    line-height: 1.08;
  }

  .file-support-list > div {
    padding-block: 21px;
    grid-template-columns: minmax(0, 1fr);
    gap: 7px;
  }

  .file-support-list dt {
    font-size: 15px;
  }

  .file-support-list dd {
    font-size: 14px;
  }

  .model-copy h2 {
    max-width: 12ch;
  }
}

/* 2026-07-31r — centered return control, spring interactions, and clear TER hierarchy. */
.back-to-top {
  position: fixed;
  z-index: 110;
  left: 50%;
  bottom: max(56px, calc(env(safe-area-inset-bottom) + 36px));
  display: grid;
  width: 52px;
  height: 52px;
  padding: 0;
  place-items: center;
  border: 0;
  border-radius: var(--rs-radius-full);
  background: rgba(255, 255, 255, 0.9);
  color: var(--rs-ink);
  box-shadow: var(--rs-shadow-float);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  cursor: pointer;
  translate: -50% 0;
  transform: translate3d(0, 14px, 0) scale(0.88);
  transition-property: background-color, color, box-shadow, scale;
  transition-duration: 150ms;
  transition-timing-function: ease-out;
  backdrop-filter: blur(16px) saturate(135%);
  will-change: transform, opacity;
}

.back-to-top.is-mounted {
  visibility: visible;
}

.back-to-top.is-visible {
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--rs-surface);
  color: var(--rs-accent-strong);
  box-shadow: var(--rs-shadow-border-hover), 0 14px 36px rgba(29, 29, 31, 0.14);
}

.back-to-top:active {
  scale: 0.96;
}

.back-to-top:focus-visible {
  outline: 3px solid rgba(85, 112, 217, 0.38);
  outline-offset: 3px;
}

.back-to-top svg {
  display: block;
}

@media (max-width: 700px) {
  .back-to-top {
    bottom: max(42px, calc(env(safe-area-inset-bottom) + 30px));
    width: 48px;
    height: 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .spring-control,
  .spring-control.is-springing {
    translate: none !important;
    scale: 1 !important;
    will-change: auto;
  }

  .back-to-top {
    transition: none;
    will-change: auto;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;

    --rs-brand: #8197ef;
    --rs-accent: #91a4f2;
    --rs-action: #6179df;
    --rs-accent-strong: #b8c3f7;
    --rs-accent-soft: rgba(129, 151, 239, 0.16);
    --rs-accent-border: rgba(145, 164, 242, 0.34);

    --rs-canvas: #111216;
    --rs-canvas-raised: #17181d;
    --rs-surface: #1b1c21;
    --rs-surface-raised: #222329;
    --rs-surface-muted: #282a31;
    --rs-surface-strong: #33353d;
    --rs-ink: #f5f6fb;
    --rs-ink-muted: #c5c7d0;
    --rs-ink-subtle: #979aa6;
    --rs-border: rgba(255, 255, 255, 0.12);
    --rs-border-strong: rgba(255, 255, 255, 0.22);
    --rs-dark: #0b0c0f;
    --rs-dark-surface: #15161a;
    --rs-dark-raised: #1c1d22;
    --rs-dark-muted: #282a31;

    --rs-shadow-border: 0 0 0 1px rgba(255, 255, 255, 0.08);
    --rs-shadow-border-hover: 0 0 0 1px rgba(255, 255, 255, 0.14);
    --rs-shadow-float:
      0 0 0 1px rgba(255, 255, 255, 0.1),
      0 18px 52px rgba(0, 0, 0, 0.42);
    --rs-glass-surface: rgba(29, 31, 38, 0.46);
    --rs-glass-surface-strong: rgba(36, 38, 46, 0.8);
    --rs-glass-hover: rgba(255, 255, 255, 0.1);
    --rs-glass-highlight: rgba(255, 255, 255, 0.16);
    --rs-glass-stroke: rgba(255, 255, 255, 0.08);
    --rs-glass-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.14),
      inset 0 -1px 0 rgba(255, 255, 255, 0.05),
      0 12px 34px rgba(0, 0, 0, 0.3);
  }

  html,
  body,
  body * {
    color-scheme: dark !important;
  }

  html,
  body {
    background: var(--rs-canvas);
    color: var(--rs-ink);
  }

  ::selection {
    background: rgba(145, 164, 242, 0.32);
    color: #fff;
  }

  .site-header,
  .page-scrolled .site-header,
  .legal-body .site-header {
    border-bottom-color: var(--rs-border);
    background: rgba(17, 18, 22, 0.88);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
  }

  .site-header .brand-name,
  .site-header .nav-menu > a:not(.nav-cta),
  .site-header .nav-menu .lang-toggle {
    color: var(--rs-ink);
  }

  .site-header .nav-menu > a:not(.nav-cta):hover,
  .site-header .nav-menu .lang-toggle:hover {
    color: var(--rs-accent-strong);
  }

  .site-header .nav-menu > a.nav-cta {
    background: #5169cc;
    color: #fff;
  }

  .site-header .nav-menu > a.nav-cta:hover {
    background: #4259b6;
    color: #fff;
  }

  .lang-dropdown {
    background: rgba(27, 28, 33, 0.97);
  }

  .hero {
    background: #12141a;
  }

  .hero .hero-intro .eyebrow {
    color: var(--rs-accent);
  }

  .hero .hero-intro .hero-lede {
    color: var(--rs-ink-muted);
  }

  .hero-visual-shell,
  .hero-product-frame,
  .hero-device-stage {
    background: var(--rs-canvas-raised);
  }

  .conversion {
    border-color: rgba(145, 164, 242, 0.18);
    background: #171a24;
  }

  .file-support-list {
    border-top-color: rgba(255, 255, 255, 0.26);
  }

  .file-support-list > div {
    border-bottom-color: rgba(255, 255, 255, 0.14);
  }

  .file-support-list .file-support-beta {
    border-bottom-color: rgba(145, 164, 242, 0.42);
  }

  .product {
    background: #131419;
  }

  .product .section-intro h2 {
    color: var(--rs-ink);
  }

  .product .section-intro h2 span {
    color: var(--rs-accent);
  }

  .product .section-intro > p:last-child {
    color: var(--rs-ink-muted);
  }

  .product-scene-surface {
    background:
      radial-gradient(circle at 26% 17%, rgba(129, 151, 239, 0.18), transparent 34%),
      linear-gradient(145deg, #1b1e2a 0%, #171a24 52%, #12141b 100%);
    box-shadow:
      inset 0 0 0 1px rgba(255, 255, 255, 0.08),
      0 24px 58px rgba(0, 0, 0, 0.34);
  }

  .product-scene-surface::after {
    background: rgba(0, 0, 0, 0.42);
  }

  .product-scene-halo {
    background: rgba(112, 137, 237, 0.18);
  }

  .product-hardware-mockup {
    filter:
      drop-shadow(0 34px 30px rgba(0, 0, 0, 0.42))
      drop-shadow(0 10px 10px rgba(0, 0, 0, 0.28));
  }

  .model-note,
  .site-footer {
    background: var(--rs-dark);
  }

  .faq,
  .legal-page,
  .legal-body {
    background: var(--rs-canvas);
  }

  .legal-shell {
    background: var(--rs-surface);
  }

  .legal-table-wide td,
  .legal-table-compact td {
    color: var(--rs-ink-muted);
  }

  .final-cta {
    background: #4b64c7;
  }

  .back-to-top {
    background: rgba(34, 35, 41, 0.9);
    color: var(--rs-ink);
    box-shadow: var(--rs-shadow-float);
  }

  .back-to-top:hover {
    background: var(--rs-surface-raised);
    color: var(--rs-accent-strong);
    box-shadow: var(--rs-shadow-border-hover), 0 14px 36px rgba(0, 0, 0, 0.38);
  }

  /*
   * The product demo is a faithful capture of the app's light score workspace.
   * Keep its paper and controls unchanged while the surrounding site follows
   * the device appearance.
   */
  .source-tablet-device,
  .result-editor.app-editor-tablet {
    --rs-brand: #5570d9;
    --rs-accent: #4f69cc;
    --rs-action: #546fd7;
    --rs-accent-strong: #3f58b8;
    --rs-accent-soft: rgba(85, 112, 217, 0.12);
    --rs-border: rgba(60, 60, 67, 0.16);
    --rs-border-strong: rgba(60, 60, 67, 0.28);
    --rs-canvas: #f5f5f7;
    --rs-surface: #ffffff;
    --rs-surface-raised: #ffffff;
    --rs-surface-muted: #efeff1;
    --rs-surface-strong: #e6e6e8;
    --rs-ink: #1d1d1f;
    --rs-ink-muted: #54545a;
    --rs-ink-subtle: #6e6e73;
    --rs-paper: #fffdf7;
    --rs-paper-muted: #f1eee6;
    color-scheme: light !important;
  }

  .source-tablet-device *,
  .result-editor.app-editor-tablet * {
    color-scheme: light !important;
  }
}

/* 2026-07-31s — Liquid Glass is reserved for navigation, controls and
   transient overlays. Score paper stays opaque so notation keeps priority. */
.site-header,
.page-scrolled .site-header,
.legal-body .site-header {
  border-bottom-color: var(--rs-glass-stroke);
  background: var(--rs-glass-surface);
  box-shadow:
    inset 0 1px 0 var(--rs-glass-highlight),
    inset 0 -1px 0 rgba(255, 255, 255, 0.16),
    0 8px 26px rgba(31, 38, 58, 0.06);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
}

.site-header .nav-menu > a:not(.nav-cta),
.site-header .lang-toggle,
.legal-body .legal-nav a {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  padding-inline: 14px;
  border: 1px solid transparent;
  border-radius: var(--rs-control-radius);
  background: transparent;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0),
    0 8px 22px rgba(31, 38, 58, 0);
  transition-property: background-color, border-color, color, box-shadow;
  transition-duration: 150ms;
  transition-timing-function: ease-out;
}

.site-header .nav-menu > a.nav-cta {
  min-height: 44px;
  padding-inline: 18px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--rs-control-radius);
  background: linear-gradient(180deg, rgba(102, 127, 224, 0.97), rgba(72, 94, 191, 0.97));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    inset 0 -1px 0 rgba(24, 39, 99, 0.16),
    0 10px 26px rgba(50, 70, 153, 0.22);
  backdrop-filter: blur(18px) saturate(145%);
  -webkit-backdrop-filter: blur(18px) saturate(145%);
}

.site-header .nav-menu > a:not(.nav-cta):focus-visible,
.site-header .lang-toggle:focus-visible,
.legal-body .legal-nav a:focus-visible {
  border-color: var(--rs-glass-stroke);
  background: var(--rs-glass-hover);
  box-shadow: var(--rs-glass-shadow);
}

.lang-dropdown,
.demo-transpose-dialog {
  border-color: var(--rs-glass-stroke);
  background: var(--rs-glass-surface-strong);
  box-shadow: var(--rs-glass-shadow), var(--rs-shadow-float);
  backdrop-filter: blur(30px) saturate(165%);
  -webkit-backdrop-filter: blur(30px) saturate(165%);
}

.button {
  border-radius: var(--rs-control-radius);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
}

.hero-intro .hero-actions {
  display: grid;
  width: min(100%, 452px);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: stretch;
  gap: 12px;
}

.hero-intro .hero-actions .button {
  width: 100%;
  min-width: 0;
  min-height: 58px;
  padding-inline: 22px;
  gap: 10px;
  border-radius: var(--rs-control-radius);
  font-size: 16px;
  font-weight: 760;
  line-height: 1.1;
}

.final-cta .button {
  min-height: 56px;
  padding-inline: 24px;
  gap: 10px;
  border-radius: var(--rs-control-radius);
}

.button-primary,
.hero .button-primary {
  border-color: rgba(255, 255, 255, 0.24);
  background: linear-gradient(180deg, rgba(102, 127, 224, 0.97), rgba(72, 94, 191, 0.97));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    inset 0 -1px 0 rgba(24, 39, 99, 0.16),
    0 10px 26px rgba(50, 70, 153, 0.2);
}

.button-secondary,
.hero .button-secondary {
  border-color: var(--rs-glass-stroke);
  background: var(--rs-glass-surface-strong);
  box-shadow: var(--rs-glass-shadow);
}

.button-light,
.final-cta .button-light {
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.84);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.88),
    inset 0 -1px 0 rgba(255, 255, 255, 0.34),
    0 14px 34px rgba(24, 39, 99, 0.2);
}

.source-readonly-notice {
  border-color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.8);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.92),
    inset 0 -1px 0 rgba(255, 255, 255, 0.42),
    0 26px 64px rgba(29, 29, 31, 0.2);
  backdrop-filter: blur(28px) saturate(145%);
  -webkit-backdrop-filter: blur(28px) saturate(145%);
}

.document-viewer-bar,
.result-editor.app-editor-tablet .app-topbar,
.result-editor.app-editor-tablet .playback-toolbar,
.hero-live-editor-device .result-editor.app-editor-tablet .playback-toolbar {
  border-color: rgba(60, 60, 67, 0.1);
  background: rgba(255, 255, 255, 0.8);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.88),
    inset 0 -1px 0 rgba(255, 255, 255, 0.34),
    0 8px 24px rgba(29, 29, 31, 0.08);
  backdrop-filter: blur(22px) saturate(145%);
  -webkit-backdrop-filter: blur(22px) saturate(145%);
}

.demo-onboarding-card {
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(27, 28, 34, 0.84);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    inset 0 -1px 0 rgba(255, 255, 255, 0.04),
    0 16px 38px rgba(15, 16, 20, 0.26);
  backdrop-filter: blur(24px) saturate(145%);
  -webkit-backdrop-filter: blur(24px) saturate(145%);
}

.back-to-top {
  border: 1px solid var(--rs-glass-stroke);
  background: var(--rs-glass-surface-strong);
  box-shadow: var(--rs-glass-shadow), 0 16px 40px rgba(29, 29, 31, 0.12);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
}

@media (hover: hover) and (pointer: fine) {
  .site-header .nav-menu > a:not(.nav-cta):hover,
  .site-header .lang-toggle:hover,
  .legal-body .legal-nav a:hover {
    border-color: var(--rs-glass-stroke);
    background: var(--rs-glass-hover);
    color: var(--rs-accent-strong);
    box-shadow: var(--rs-glass-shadow);
  }

  .site-header .nav-menu > a.nav-cta:hover,
  .button-primary:hover,
  .hero .button-primary:hover {
    background: linear-gradient(180deg, rgba(90, 115, 211, 0.98), rgba(61, 81, 170, 0.98));
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.46),
      inset 0 -1px 0 rgba(24, 39, 99, 0.2),
      0 14px 34px rgba(50, 70, 153, 0.28);
  }

  .button-secondary:hover,
  .hero .button-secondary:hover,
  .button-light:hover,
  .final-cta .button-light:hover,
  .back-to-top:hover {
    border-color: var(--rs-glass-stroke);
    background: var(--rs-glass-hover);
    box-shadow: var(--rs-glass-shadow), 0 14px 34px rgba(29, 29, 31, 0.12);
  }
}

@media (max-width: 1080px) {
  .brand-process {
    grid-template-columns: minmax(0, 1fr);
  }

  .brand-process li {
    padding: 17px 0;
    border-right: 0;
    border-left: 0;
    grid-template-columns: minmax(104px, 0.34fr) minmax(0, 1fr);
    gap: 20px;
  }
}

@media (max-width: 700px) {
  .hero-intro .hero-actions {
    width: min(100%, 360px);
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }
}

@media (prefers-color-scheme: dark) {
  .site-header,
  .page-scrolled .site-header,
  .legal-body .site-header {
    border-bottom-color: var(--rs-glass-stroke);
    background: var(--rs-glass-surface);
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.12),
      inset 0 -1px 0 rgba(255, 255, 255, 0.04),
      0 12px 34px rgba(0, 0, 0, 0.28);
  }

  .site-header .nav-menu > a.nav-cta {
    border-color: rgba(255, 255, 255, 0.16);
    background: linear-gradient(180deg, rgba(104, 128, 225, 0.96), rgba(74, 95, 194, 0.96));
  }

  .button-secondary,
  .lang-dropdown,
  .demo-transpose-dialog,
  .back-to-top {
    border-color: var(--rs-glass-stroke);
    background: var(--rs-glass-surface-strong);
  }
}

@media (prefers-reduced-transparency: reduce) {
  .site-header,
  .page-scrolled .site-header,
  .legal-body .site-header,
  .lang-dropdown,
  .demo-transpose-dialog,
  .button-secondary,
  .back-to-top {
    background: var(--rs-surface-raised);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .source-readonly-notice,
  .document-viewer-bar,
  .result-editor.app-editor-tablet .app-topbar,
  .result-editor.app-editor-tablet .playback-toolbar,
  .hero-live-editor-device .result-editor.app-editor-tablet .playback-toolbar {
    background: #fff;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

/* 2026-07-31v — one velocity-preserving surface moves between header actions.
   Its 12px corners follow the shared control system instead of becoming a pill. */
.site-header .nav-menu.has-nav-motion-track {
  position: relative;
  inset: auto;
  isolation: isolate;
}

.site-header .nav-menu.has-nav-motion-track > a,
.site-header .nav-menu.has-nav-motion-track > .lang-switcher-mount {
  position: relative;
  z-index: 1;
}

.site-header .nav-motion-track {
  position: absolute;
  z-index: 0;
  top: 0;
  left: 0;
  display: block;
  width: 0;
  height: 0;
  border: 1px solid var(--rs-glass-stroke);
  border-radius: var(--rs-control-radius);
  background: var(--rs-glass-hover);
  box-shadow: var(--rs-glass-shadow);
  opacity: 0;
  pointer-events: none;
  transform: translate3d(0, 0, 0);
  transition-property: opacity, background-color, border-color, box-shadow;
  transition-duration: 120ms, 150ms, 150ms, 150ms;
  transition-timing-function: ease-out;
  will-change: transform, opacity;
}

.site-header .nav-motion-track.is-visible {
  opacity: 1;
}

.site-header .nav-motion-track.is-cta-target {
  border-color: rgba(121, 145, 237, 0.58);
  background: rgba(85, 112, 217, 0.2);
  box-shadow:
    0 0 0 3px rgba(85, 112, 217, 0.14),
    0 12px 30px rgba(50, 70, 153, 0.24);
}

.site-header .nav-menu.has-nav-motion-track > a:not(.nav-cta):focus-visible,
.site-header .nav-menu.has-nav-motion-track .lang-toggle:focus-visible {
  border-color: transparent;
  background: transparent;
  box-shadow: none;
}

@media (hover: hover) and (pointer: fine) {
  .site-header .nav-menu.has-nav-motion-track > a:not(.nav-cta):hover,
  .site-header .nav-menu.has-nav-motion-track .lang-toggle:hover {
    border-color: transparent;
    background: transparent;
    box-shadow: none;
  }
}

@media (prefers-color-scheme: dark) {
  .site-header .nav-motion-track {
    border-color: rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.08);
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.1),
      0 12px 28px rgba(0, 0, 0, 0.28);
  }

  .site-header .nav-motion-track.is-cta-target {
    border-color: rgba(148, 169, 248, 0.54);
    background: rgba(103, 130, 232, 0.2);
    box-shadow:
      0 0 0 3px rgba(103, 130, 232, 0.16),
      0 14px 32px rgba(0, 0, 0, 0.34);
  }
}

@media (prefers-reduced-transparency: reduce) {
  .site-header .nav-motion-track {
    background: var(--rs-surface-raised);
    box-shadow: var(--rs-shadow-border);
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header .nav-motion-track {
    transition: none;
    will-change: auto;
  }
}

/* 2026-07-31w — keep the mobile score path cheap while the page scrolls.
   Glass remains on larger screens; compact screens use stable translucent
   fills so the sticky header and oversized device demos do not re-blur every
   frame. The coach pulse is compositor-only instead of animating box-shadow. */
.demo-onboarding-beacon {
  animation: none;
}

.demo-onboarding-beacon::after {
  position: absolute;
  inset: -2px;
  border: 2px solid #5b55e7;
  border-radius: inherit;
  content: "";
  opacity: 0;
  pointer-events: none;
  transform: scale(1);
  animation: demo-beacon-ring 1.55s ease-out infinite;
  will-change: transform, opacity;
}

.demo-onboarding.is-hold-ready .demo-onboarding-beacon::after {
  border-color: #d87926;
}

.demo-onboarding.is-note-target .demo-onboarding-beacon::after {
  animation: none;
  opacity: 0;
}

@keyframes demo-beacon-ring {
  0% {
    opacity: 0.34;
    transform: scale(1);
  }
  70%,
  100% {
    opacity: 0;
    transform: scale(1.72);
  }
}

@media (max-width: 700px) {
  .site-header,
  .page-scrolled .site-header,
  .legal-body .site-header {
    background: rgba(248, 248, 250, 0.97);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .button,
  .site-header .nav-menu > a.nav-cta,
  .lang-dropdown,
  .demo-transpose-dialog,
  .back-to-top,
  .source-readonly-notice,
  .document-viewer-bar,
  .result-editor.app-editor-tablet .app-topbar,
  .result-editor.app-editor-tablet .playback-toolbar,
  .hero-live-editor-device .result-editor.app-editor-tablet .playback-toolbar,
  .demo-onboarding-card,
  .hero-device-caption {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .source-readonly-notice,
  .document-viewer-bar,
  .result-editor.app-editor-tablet .app-topbar,
  .result-editor.app-editor-tablet .playback-toolbar,
  .hero-live-editor-device .result-editor.app-editor-tablet .playback-toolbar {
    background: rgba(255, 255, 255, 0.97);
  }

  .demo-onboarding-card {
    background: rgba(27, 28, 34, 0.96);
  }
}

@media (max-width: 700px) and (prefers-color-scheme: dark) {
  .site-header,
  .page-scrolled .site-header,
  .legal-body .site-header {
    background: rgba(17, 18, 22, 0.97);
  }
}

@media (prefers-reduced-motion: reduce) {
  .demo-onboarding-beacon::after {
    animation: none;
    opacity: 0.24;
    will-change: auto;
  }
}

/* 2026-07-31x — measure numbers belong to the notation, not the phone gutter.
   Keep the score inset symmetric, align each system number with its first
   barline, and use one locale-neutral date/time pattern on every device. */
.hero-live-editor-device .result-editor.app-editor-tablet .mobile-score-page,
.hero-live-editor-device .result-editor.app-editor-tablet .demo-page-preview {
  padding-inline: clamp(18px, 5.45cqw, 30px);
}

.hero-live-editor-device .result-editor.app-editor-tablet .mobile-demo-measure-number {
  top: 1px;
  left: 0;
  line-height: 1;
}

.source-tablet-status .app-status-left,
.result-editor.app-editor-tablet .app-status-left {
  gap: 3px;
}

.source-tablet-status .app-status-left i,
.result-editor.app-editor-tablet .app-status-left i {
  display: inline;
  overflow: visible;
  text-overflow: clip;
}

@media (max-width: 640px) {
  .source-tablet-status .app-status-left,
  .result-editor.app-editor-tablet .app-status-left {
    gap: 2px;
  }

  .source-tablet-status .app-status-left i,
  .result-editor.app-editor-tablet .app-status-left i {
    display: inline;
    font-size: 5.5px;
  }
}