/* =====================================================
   Study Workspace — QMF tokens (ui.quizzman.com)
   Spacing / typography / radius / border from @qmf/tokens
   Tropical accents remain product-specific
   ===================================================== */

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

:root {
  /* Semantic → QMF */
  --sw-bg: var(--qmf-bg-primary);
  --sw-surface: var(--qmf-bg-primary);
  --sw-paper: var(--qmf-bg-primary);
  --sw-border: var(--qmf-border-color);
  --sw-text: var(--qmf-text-primary);
  --sw-text-2: var(--qmf-text-secondary);
  --sw-text-3: var(--qmf-text-muted);

  --sw-radius: var(--qmf-radius-2xl);
  --sw-radius-sm: var(--qmf-radius-xl);
  --sw-shadow: var(--qmf-shadow-sm);
  --sw-font: var(--qmf-font-sans);
  --sw-font-cn: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', var(--qmf-font-sans);
  --sw-ease: var(--qmf-transition-normal);
  --sw-header-h: var(--qmf-header-h, var(--qmf-header-height, 56px));
  --sw-max: 960px;

  /* Product accents (Tropical) */
  --sw-ocean: #0891b2;
  --sw-ocean-soft: #ecfeff;
  --sw-lagoon: #0f9b8e;
  --sw-lagoon-deep: #0c7a70;
  --sw-lagoon-soft: #ecfdf8;
  --sw-palm: #059669;
  --sw-palm-soft: #ecfdf5;
  --sw-sand: #d97706;
  --sw-sand-soft: #fffbeb;
  --sw-sunset: #ea580c;
  --sw-sunset-soft: #fff7ed;

  --sw-progress: linear-gradient(90deg, #06b6d4 0%, #0f9b8e 48%, #34d399 100%);
  --sw-cta: linear-gradient(135deg, #ea580c 0%, #f59e0b 100%);
  --sw-tropical:
    radial-gradient(ellipse 70% 90% at 100% 0%, rgba(251, 191, 36, 0.16), transparent 42%),
    radial-gradient(ellipse 55% 70% at 0% 100%, rgba(52, 211, 153, 0.12), transparent 48%),
    linear-gradient(145deg, #f0fbfb 0%, #f5fcf9 42%, #fffaf3 100%);
}

[data-theme="dark"] {
  --sw-bg: #062b3b;
  --sw-surface: #0b3d4f;
  --sw-paper: #062b3b;
  --sw-border: rgba(240, 253, 250, 0.16);
  --sw-text: #f0fdfa;
  --sw-text-2: #99f6e4;
  --sw-text-3: #5eead4;
  --sw-ocean: #67e8f9;
  --sw-ocean-soft: rgba(103, 232, 249, 0.12);
  --sw-lagoon: #2dd4bf;
  --sw-lagoon-deep: #5eead4;
  --sw-lagoon-soft: rgba(45, 212, 191, 0.12);
  --sw-palm: #34d399;
  --sw-palm-soft: rgba(52, 211, 153, 0.12);
  --sw-sand: #fbbf24;
  --sw-sand-soft: rgba(251, 191, 36, 0.12);
  --sw-sunset: #fb923c;
  --sw-sunset-soft: rgba(249, 115, 22, 0.14);
  --sw-tropical:
    radial-gradient(ellipse at 80% 10%, rgba(251, 191, 36, 0.18), transparent 30%),
    linear-gradient(180deg, rgba(6, 182, 212, 0.14), transparent 55%),
    #0b3d4f;
  --sw-shadow: var(--qmf-shadow-none);
}

.qmf-settings-float,
.settings-float,
[data-settings-float],
#settingsFloat,
.qmf-sf {
  display: none !important;
}

body {
  margin: 0;
  background: var(--sw-bg);
  color: var(--sw-text);
  font-family: var(--sw-font);
  font-size: var(--qmf-text-base);
  font-weight: var(--qmf-font-normal);
  line-height: var(--qmf-leading-normal);
  -webkit-font-smoothing: antialiased;
}

.sw-skip {
  position: absolute;
  left: -999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.sw-skip:focus {
  left: var(--qmf-space-2);
  top: var(--qmf-space-2);
  z-index: var(--qmf-z-max);
  width: auto;
  height: auto;
  padding: var(--qmf-space-1-5) var(--qmf-space-2-5);
  background: var(--sw-surface);
  border: 1px solid var(--sw-border);
  border-radius: var(--qmf-radius-lg);
  font-size: var(--qmf-text-sm);
}

/* ── Shell ── */
.sw-page {
  min-height: 100vh;
  padding: calc(var(--sw-header-h) + var(--qmf-space-1)) var(--qmf-space-2) var(--qmf-space-4);
  background: var(--sw-paper);
}

.sw-shell {
  max-width: var(--sw-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--qmf-space-4);
}

.sw-section {
  display: flex;
  flex-direction: column;
  gap: var(--qmf-space-2);
}

.sw-section__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--qmf-space-3);
}

.sw-section__label {
  margin: 0;
  font-size: var(--qmf-text-xs);
  font-weight: var(--qmf-font-bold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--sw-text-3);
  line-height: var(--qmf-leading-tight);
}

.sw-section__link {
  font-size: var(--qmf-text-sm);
  font-weight: var(--qmf-font-semibold);
  color: var(--sw-lagoon);
  text-decoration: none;
}

/* Shared card chrome (design system) */
.sw-rail__card,
.sw-scroll__card,
.sw-level,
.sw-hero,
.sw-hero__track,
.sw-hero__badge,
.sw-hero__search,
.sw-triad__card {
  border: 1px solid var(--sw-border);
}

/* ── Hero ── */
.sw-hero {
  position: relative;
  min-height: 0;
  padding: var(--qmf-space-4);
  border-radius: var(--sw-radius);
  background: var(--sw-tropical);
  box-shadow: var(--sw-shadow);
  overflow: hidden;
}

.sw-hero__art {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.sw-hero__glyph {
  position: absolute;
  font-family: var(--sw-font-cn);
  font-weight: var(--qmf-font-semibold);
  color: rgba(15, 155, 142, 0.12);
  line-height: var(--qmf-leading-none);
  user-select: none;
}

.sw-hero__glyph--1 {
  right: 6%;
  top: 14%;
  font-size: var(--qmf-text-4xl);
  transform: rotate(-8deg) scale(1.6);
}

.sw-hero__glyph--2 {
  right: 20%;
  bottom: 8%;
  font-size: var(--qmf-text-3xl);
  color: rgba(217, 119, 6, 0.14);
  transform: rotate(12deg);
}

.sw-hero__blob {
  position: absolute;
  border-radius: var(--qmf-radius-full);
}

.sw-hero__blob--sand {
  width: 120px;
  height: 120px;
  right: -24px;
  top: -28px;
  background: rgba(251, 191, 36, 0.26);
}

.sw-hero__blob--ocean {
  width: 90px;
  height: 90px;
  right: 16%;
  bottom: -36px;
  background: rgba(6, 182, 212, 0.2);
}

.sw-hero__blob--palm {
  width: 72px;
  height: 72px;
  left: -18px;
  bottom: 18%;
  background: rgba(52, 211, 153, 0.18);
}

.sw-hero__body {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--qmf-space-3);
  width: min(100%, 540px);
}

.sw-hero__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--qmf-space-3);
}

.sw-hero__badge {
  display: inline-flex;
  margin: 0 0 var(--qmf-space-1-5);
  padding: var(--qmf-space-0-5) var(--qmf-space-2-5);
  border-radius: var(--qmf-radius-full);
  background: rgba(255, 255, 255, 0.72);
  color: var(--sw-lagoon);
  font-size: var(--qmf-text-xs);
  font-weight: var(--qmf-font-bold);
  line-height: var(--qmf-leading-tight);
}

.sw-hero__hello {
  margin: 0;
  font-size: var(--qmf-text-2xl);
  font-weight: var(--qmf-font-bold);
  letter-spacing: -0.03em;
  line-height: var(--qmf-leading-tight);
}

.sw-hero__sub {
  margin: var(--qmf-space-1) 0 0;
  font-size: var(--qmf-text-sm);
  font-weight: var(--qmf-font-medium);
  color: var(--sw-text-2);
  line-height: var(--qmf-leading-snug);
}

.sw-hero__search {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: var(--qmf-radius-lg);
  background: rgba(255, 255, 255, 0.72);
  color: var(--sw-text-2);
  text-decoration: none;
  transition: background-color var(--qmf-transition-fast), color var(--qmf-transition-fast), border-color var(--qmf-transition-fast);
}

.sw-hero__search:hover {
  color: var(--sw-ocean);
  border-color: var(--sw-ocean);
  background: var(--sw-ocean-soft);
}

.sw-hero__search:focus-visible {
  outline: 2px solid var(--qmf-border-focus);
  outline-offset: 2px;
}

.sw-hero__search svg {
  width: 15px;
  height: 15px;
}

.sw-hero__track {
  padding: var(--qmf-space-3);
  border-radius: var(--sw-radius-sm);
  background: rgba(255, 255, 255, 0.78);
}

[data-theme="dark"] .sw-hero__track,
[data-theme="dark"] .sw-hero__badge,
[data-theme="dark"] .sw-hero__search {
  background: rgba(11, 61, 79, 0.72);
  border-color: var(--sw-border);
}

.sw-hero__track-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--qmf-space-3);
  margin-bottom: var(--qmf-space-3);
}

.sw-hero__eyebrow {
  margin: 0;
  font-size: var(--qmf-text-xs);
  font-weight: var(--qmf-font-bold);
  color: var(--sw-ocean);
  line-height: var(--qmf-leading-tight);
}

.sw-hero__title {
  margin: var(--qmf-space-1) 0 0;
  font-size: var(--qmf-text-xl);
  font-weight: var(--qmf-font-bold);
  letter-spacing: -0.02em;
  line-height: var(--qmf-leading-tight);
}

.sw-hero__hint {
  margin: var(--qmf-space-1) 0 0;
  font-size: var(--qmf-text-sm);
  font-weight: var(--qmf-font-medium);
  color: var(--sw-text-2);
  line-height: var(--qmf-leading-snug);
}

.sw-hero__cta {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 var(--qmf-space-4);
  border: 1px solid transparent;
  border-radius: var(--qmf-radius-full);
  background: var(--sw-cta);
  color: var(--qmf-color-white);
  font-size: var(--qmf-text-sm);
  font-weight: var(--qmf-font-bold);
  line-height: var(--qmf-leading-none);
  text-decoration: none;
  transition: filter var(--qmf-transition-fast);
}

.sw-hero__cta:hover {
  filter: brightness(1.05);
}

.sw-hero__cta:focus-visible {
  outline: 2px solid var(--qmf-border-focus);
  outline-offset: 2px;
}

.sw-hero__progress {
  display: flex;
  flex-direction: column;
  gap: var(--qmf-space-1-5);
}

.sw-hero__bar {
  height: 8px;
  border-radius: var(--qmf-radius-full);
  background: var(--qmf-bg-tertiary);
  overflow: hidden;
}

.sw-hero__fill {
  height: 100%;
  width: 8%;
  border-radius: inherit;
  background: var(--sw-progress);
  transition: width var(--qmf-transition-slow);
}

.sw-hero__progress-meta {
  display: flex;
  justify-content: space-between;
  gap: var(--qmf-space-3);
  font-size: var(--qmf-text-xs);
  font-weight: var(--qmf-font-semibold);
  color: var(--sw-text-2);
  font-variant-numeric: tabular-nums;
  line-height: var(--qmf-leading-tight);
}

/* ── Recent rail ── */
.sw-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(180px, 1fr);
  gap: var(--qmf-space-3);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.sw-rail__card {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: var(--qmf-space-1);
  min-height: 80px;
  padding: var(--qmf-space-3);
  border-radius: var(--sw-radius-sm);
  background: var(--qmf-bg-primary);
  text-decoration: none;
  color: var(--sw-text);
  box-shadow: var(--sw-shadow);
  transition: transform var(--qmf-transition-fast), border-color var(--qmf-transition-fast);
}

.sw-rail__card:hover {
  transform: translateY(-1px);
  border-color: var(--tone);
}

.sw-rail__card:focus-visible {
  outline: 2px solid var(--qmf-border-focus);
  outline-offset: 2px;
}

.sw-rail__kind {
  font-size: var(--qmf-text-xs);
  font-weight: var(--qmf-font-bold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--tone);
  line-height: var(--qmf-leading-tight);
}

.sw-rail__title {
  font-size: var(--qmf-text-sm);
  font-weight: var(--qmf-font-bold);
  line-height: var(--qmf-leading-snug);
  flex: 1;
}

.sw-rail__time {
  font-size: var(--qmf-text-xs);
  font-weight: var(--qmf-font-medium);
  color: var(--sw-text-3);
  line-height: var(--qmf-leading-tight);
}

.sw-rail__card[data-tone="ocean"] { --tone: var(--sw-ocean); --tone-soft: var(--sw-ocean-soft); }
.sw-rail__card[data-tone="sand"] { --tone: var(--sw-sand); --tone-soft: var(--sw-sand-soft); }
.sw-rail__card[data-tone="palm"] { --tone: var(--sw-palm); --tone-soft: var(--sw-palm-soft); }
.sw-rail__card[data-tone="sunset"] { --tone: var(--sw-sunset); --tone-soft: var(--sw-sunset-soft); }
.sw-rail__card[data-tone="lagoon"] { --tone: var(--sw-lagoon); --tone-soft: var(--sw-lagoon-soft); }

/* ── Triad ── */
.sw-triad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--qmf-space-3);
}

.sw-triad__card {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--qmf-space-1);
  min-height: 148px;
  padding: var(--qmf-space-4);
  border-radius: var(--sw-radius);
  text-decoration: none;
  color: var(--qmf-color-white);
  box-shadow: var(--sw-shadow);
  overflow: hidden;
  position: relative;
  isolation: isolate;
  transition: transform var(--qmf-transition-normal), filter var(--qmf-transition-normal), border-color var(--qmf-transition-fast);
}

.sw-triad__card:hover,
.sw-triad__card:focus-visible {
  transform: translateY(-3px) scale(1.01);
  filter: brightness(1.05);
}

.sw-triad__card:focus-visible {
  outline: 2px solid var(--qmf-border-focus);
  outline-offset: 2px;
}

.sw-triad__card:active {
  transform: translateY(-1px) scale(0.995);
}

.sw-triad__card[data-tone="ocean"] {
  border-color: color-mix(in srgb, #0891b2 55%, var(--qmf-border-color));
  background:
    radial-gradient(ellipse 80% 70% at 100% 0%, rgba(165, 243, 252, 0.35), transparent 50%),
    linear-gradient(145deg, #0e7490 0%, #0891b2 55%, #06b6d4 100%);
}

.sw-triad__card[data-tone="lagoon"] {
  border-color: color-mix(in srgb, #0f9b8e 55%, var(--qmf-border-color));
  background:
    radial-gradient(ellipse 80% 70% at 0% 0%, rgba(153, 246, 228, 0.35), transparent 50%),
    linear-gradient(145deg, #0c7a70 0%, #0f9b8e 55%, #14b8a6 100%);
}

.sw-triad__card--brand,
.sw-triad__card[data-tone="sunset"] {
  border-color: color-mix(in srgb, #ea580c 40%, var(--qmf-border-color));
  background:
    radial-gradient(ellipse 80% 70% at 100% 0%, rgba(251, 191, 36, 0.35), transparent 50%),
    linear-gradient(145deg, #0f9b8e 0%, #0891b2 42%, #ea580c 115%);
}

.sw-triad__card .sw-triad__meta {
  color: rgba(255, 255, 255, 0.88);
}

.sw-triad__brand-kicker {
  margin-bottom: auto;
  font-size: var(--qmf-text-xs);
  font-weight: var(--qmf-font-bold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.9;
  z-index: 1;
  line-height: var(--qmf-leading-tight);
}

.sw-triad__visual {
  position: absolute;
  top: var(--qmf-space-3);
  right: var(--qmf-space-3);
  width: 72px;
  height: 72px;
  z-index: 0;
  pointer-events: none;
}

.sw-triad__title,
.sw-triad__meta {
  position: relative;
  z-index: 1;
}

.sw-triad__title {
  font-size: var(--qmf-text-lg);
  font-weight: var(--qmf-font-bold);
  letter-spacing: -0.02em;
  line-height: var(--qmf-leading-tight);
}

.sw-triad__meta {
  font-size: var(--qmf-text-sm);
  font-weight: var(--qmf-font-medium);
  line-height: var(--qmf-leading-snug);
}

/* Brand picker: open choices on homepage */
.sw-triad__picker {
  justify-content: flex-start;
  cursor: default;
  padding: 0;
}

.sw-triad__picker:hover,
.sw-triad__picker:focus-within {
  transform: translateY(-2px);
  filter: brightness(1.03);
}

.sw-triad__summary {
  list-style: none;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--qmf-space-1);
  min-height: 148px;
  padding: var(--qmf-space-4);
  cursor: pointer;
  color: inherit;
}

.sw-triad__summary::-webkit-details-marker,
.sw-triad__summary::marker {
  display: none;
  content: '';
}

.sw-triad__summary:focus-visible {
  outline: 2px solid var(--qmf-border-focus);
  outline-offset: -4px;
  border-radius: inherit;
}

.sw-triad__open-hint {
  margin-top: var(--qmf-space-2);
  font-size: var(--qmf-text-xs);
  font-weight: var(--qmf-font-bold);
  opacity: 0.9;
  position: relative;
  z-index: 1;
}

.sw-triad__open-hint::after {
  content: ' →';
}

.sw-triad__picker[open] .sw-triad__open-hint::after {
  content: ' ↑';
}

.sw-triad__picker[open] .sw-triad__summary {
  min-height: 0;
  padding-bottom: var(--qmf-space-2);
}

.sw-triad__choices {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--qmf-space-2);
  padding: 0 var(--qmf-space-4) var(--qmf-space-4);
  position: relative;
  z-index: 1;
}

.sw-triad__choice {
  display: grid;
  place-items: center;
  min-height: 44px;
  padding: var(--qmf-space-2);
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: var(--sw-radius-sm);
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  text-decoration: none;
  font-size: var(--qmf-text-sm);
  font-weight: var(--qmf-font-bold);
  line-height: var(--qmf-leading-tight);
  text-align: center;
  transition: background-color var(--qmf-transition-fast), transform var(--qmf-transition-fast);
}

.sw-triad__choice:hover,
.sw-triad__choice:focus-visible {
  background: rgba(255, 255, 255, 0.28);
  transform: translateY(-1px);
}

.sw-triad__choice:focus-visible {
  outline: 2px solid var(--qmf-border-focus);
  outline-offset: 2px;
}

@media (max-width: 720px) {
  .sw-triad__choices {
    grid-template-columns: 1fr;
  }
}

/* HSK badge SVG */
.sw-hsk {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 6px 12px rgba(0, 0, 0, 0.18));
  transition: transform var(--qmf-transition-normal);
}

.sw-triad__card:hover .sw-hsk {
  transform: rotate(-4deg) scale(1.08);
}

.sw-hsk__seal {
  transition: transform var(--qmf-transition-slow);
  transform-origin: 36px 36px;
}

.sw-triad__card:hover .sw-hsk__seal {
  transform: rotate(8deg);
}

/* Flipping book */
.sw-book {
  width: 100%;
  height: 100%;
  perspective: 500px;
}

.sw-book__stage {
  position: relative;
  width: 54px;
  height: 64px;
  margin-left: auto;
  transform-style: preserve-3d;
}

.sw-book__cover,
.sw-book__page {
  position: absolute;
  inset: 0;
  border-radius: var(--qmf-radius-sm) var(--qmf-radius-md) var(--qmf-radius-md) var(--qmf-radius-sm);
  backface-visibility: hidden;
  transform-origin: left center;
  box-shadow: var(--qmf-shadow-md);
}

.sw-book__cover {
  background: linear-gradient(145deg, #fff7ed 0%, #fdba74 100%);
  border: 1px solid color-mix(in srgb, var(--qmf-color-white) 55%, transparent);
  z-index: 3;
  display: grid;
  place-items: center;
  transition: transform var(--qmf-transition-slow);
}

.sw-book__cover-mark {
  font-family: var(--sw-font-cn);
  font-size: var(--qmf-text-lg);
  font-weight: var(--qmf-font-bold);
  color: #9a3412;
  line-height: var(--qmf-leading-none);
}

.sw-book__page {
  background:
    linear-gradient(180deg, transparent 10px, rgba(14, 116, 144, 0.12) 10px, rgba(14, 116, 144, 0.12) 11px, transparent 11px) 0 14px / 100% 12px repeat-y,
    #fffef8;
  border: 1px solid color-mix(in srgb, var(--qmf-color-white) 70%, transparent);
}

.sw-book__page--1 { z-index: 2; }
.sw-book__page--2 { z-index: 1; left: 2px; }

.sw-book__spine {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  border-radius: var(--qmf-radius-sm) 0 0 var(--qmf-radius-sm);
  background: rgba(154, 52, 18, 0.35);
  z-index: 4;
}

.sw-triad__card:hover .sw-book__cover,
.sw-triad__card:focus-visible .sw-book__cover {
  transform: rotateY(-118deg);
}

.sw-triad__card:hover .sw-book__page--1,
.sw-triad__card:focus-visible .sw-book__page--1 {
  animation: sw-page-flip 700ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes sw-page-flip {
  0% { transform: rotateY(0deg); }
  40% { transform: rotateY(-70deg); }
  100% { transform: rotateY(-12deg); }
}

@media (prefers-reduced-motion: reduce) {
  .sw-triad__card:hover .sw-book__cover,
  .sw-triad__card:focus-visible .sw-book__cover {
    transform: none;
  }
  .sw-triad__card:hover .sw-book__page--1 {
    animation: none;
  }
}

/* ── Horizontal marquee loop ── */
.sw-scroll {
  overflow: hidden;
  padding-bottom: var(--qmf-space-0-5);
  mask-image: linear-gradient(90deg, transparent, #000 1.5rem, #000 calc(100% - 1.5rem), transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 1.5rem, #000 calc(100% - 1.5rem), transparent);
}

.sw-scroll__track {
  display: flex;
  width: max-content;
  will-change: transform;
  animation: sw-marquee 32s linear infinite;
}

.sw-scroll:hover .sw-scroll__track,
.sw-scroll:focus-within .sw-scroll__track {
  animation-play-state: paused;
}

.sw-scroll__group {
  display: flex;
  flex-shrink: 0;
  gap: var(--qmf-space-3);
  padding-right: var(--qmf-space-3);
}

@keyframes sw-marquee {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(-50%, 0, 0); }
}

.sw-scroll__card {
  flex: 0 0 148px;
  display: flex;
  flex-direction: column;
  gap: var(--qmf-space-1);
  min-height: 120px;
  padding: var(--qmf-space-3);
  border-radius: var(--sw-radius);
  background: var(--qmf-bg-primary);
  text-decoration: none;
  color: var(--sw-text);
  box-shadow: var(--sw-shadow);
  transition: transform var(--qmf-transition-fast), border-color var(--qmf-transition-fast), background-color var(--qmf-transition-fast);
}

.sw-scroll__card:hover {
  transform: translateY(-2px);
  border-color: var(--tone);
  background: var(--tone-soft);
}

.sw-scroll__card:focus-visible {
  outline: 2px solid var(--qmf-border-focus);
  outline-offset: 2px;
}

.sw-scroll__icon {
  width: 40px;
  height: 40px;
  margin-bottom: var(--qmf-space-2);
}

.sw-scroll__icon img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.sw-scroll__title {
  font-size: var(--qmf-text-base);
  font-weight: var(--qmf-font-bold);
  letter-spacing: -0.01em;
  line-height: var(--qmf-leading-tight);
}

.sw-scroll__meta {
  font-size: var(--qmf-text-xs);
  font-weight: var(--qmf-font-medium);
  color: var(--sw-text-2);
  line-height: var(--qmf-leading-snug);
}

.sw-scroll__card[data-tone="sand"] { --tone: var(--sw-sand); --tone-soft: var(--sw-sand-soft); }
.sw-scroll__card[data-tone="palm"] { --tone: var(--sw-palm); --tone-soft: var(--sw-palm-soft); }
.sw-scroll__card[data-tone="sunset"] { --tone: var(--sw-sunset); --tone-soft: var(--sw-sunset-soft); }
.sw-scroll__card[data-tone="ocean"] { --tone: var(--sw-ocean); --tone-soft: var(--sw-ocean-soft); }
.sw-scroll__card[data-tone="lagoon"] { --tone: var(--sw-lagoon); --tone-soft: var(--sw-lagoon-soft); }

/* ── HSK levels ── */
.sw-levels {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--qmf-space-2);
}

.sw-level {
  display: grid;
  place-items: center;
  min-height: 40px;
  padding: var(--qmf-space-2) var(--qmf-space-1-5);
  border-radius: var(--sw-radius-sm);
  background: var(--qmf-bg-primary);
  color: var(--tone);
  text-decoration: none;
  font-size: var(--qmf-text-xs);
  font-weight: var(--qmf-font-bold);
  line-height: var(--qmf-leading-tight);
  box-shadow: var(--sw-shadow);
  transition: background-color var(--qmf-transition-fast), color var(--qmf-transition-fast), border-color var(--qmf-transition-fast);
}

.sw-level:hover,
.sw-level.is-active {
  background: var(--tone);
  border-color: var(--tone);
  color: var(--qmf-color-white);
}

.sw-level:focus-visible {
  outline: 2px solid var(--qmf-border-focus);
  outline-offset: 2px;
}

.sw-level[data-tone="ocean"] { --tone: var(--sw-ocean); --tone-soft: var(--sw-ocean-soft); }
.sw-level[data-tone="lagoon"] { --tone: var(--sw-lagoon); --tone-soft: var(--sw-lagoon-soft); }
.sw-level[data-tone="palm"] { --tone: var(--sw-palm); --tone-soft: var(--sw-palm-soft); }
.sw-level[data-tone="sand"] { --tone: var(--sw-sand); --tone-soft: var(--sw-sand-soft); }
.sw-level[data-tone="sunset"] { --tone: var(--sw-sunset); --tone-soft: var(--sw-sunset-soft); }

/* ── Footer ── */
.sw-footer {
  margin-top: var(--qmf-space-1);
  padding-top: var(--qmf-space-3);
  border-top: 1px solid var(--sw-border);
  display: flex;
  justify-content: space-between;
  gap: var(--qmf-space-3);
  font-size: var(--qmf-text-xs);
  font-weight: var(--qmf-font-medium);
  color: var(--sw-text-3);
  line-height: var(--qmf-leading-tight);
}

.sw-footer a {
  color: inherit;
  text-decoration: none;
}

.sw-footer__links {
  display: flex;
  gap: var(--qmf-space-3);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }

  .sw-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    mask-image: none;
    -webkit-mask-image: none;
  }

  .sw-scroll__track {
    animation: none;
  }
}

@media (max-width: 720px) {
  .sw-triad {
    grid-template-columns: 1fr;
  }

  .sw-triad__card {
    min-height: 132px;
  }

  .sw-levels {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 560px) {
  .sw-page {
    padding: calc(var(--sw-header-h) + var(--qmf-space-1)) var(--qmf-space-2) var(--qmf-space-4);
  }

  .sw-shell {
    gap: var(--qmf-space-3);
  }

  .sw-hero {
    padding: var(--qmf-space-3);
  }

  .sw-hero__hello {
    font-size: var(--qmf-text-xl);
  }

  .sw-hero__track-top {
    flex-direction: column;
    align-items: stretch;
  }

  .sw-hero__cta {
    width: 100%;
  }

  .sw-triad__card {
    min-height: 124px;
    padding: var(--qmf-space-3);
  }

  .sw-scroll__card {
    flex-basis: 136px;
  }
}