/* Calm interface style (TZ section 16): minimal, spacious, soft colours, tidy
   cards, small colour accents. It is a token layer plus a short list of
   component overrides on top of the base sheets, enabled with
   html[data-style="calm"]. The sharp "terminal" style stays available from
   Settings; nothing here applies to it. */

:root[data-style="calm"] {
  --font:
    -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI",
    system-ui, sans-serif;
  --font-display:
    -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", "Segoe UI",
    system-ui, sans-serif;
  --r-xs: 8px;
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-pill: 999px;
  --ctl: 40px;
  --ctl-sm: 32px;
  --row: 44px;
  --gap: 16px;
  --gap-sm: 10px;
  --gap-lg: 24px;
  --shadow-card:
    0 1px 2px rgb(20 24 40 / 5%), 0 10px 28px -14px rgb(20 24 40 / 14%);
  --shadow-lift:
    0 2px 4px rgb(20 24 40 / 6%), 0 18px 36px -16px rgb(20 24 40 / 20%);
  --n-layer-1: var(--shadow-card);
  --n-layer-2: var(--shadow-card);
  --n-layer-3: var(--shadow-lift);
  --n-glow-sm: 0 0 0 0 transparent;
  --n-glow: 0 0 0 0 transparent;
  --n-glow-wide: 0 0 0 0 transparent;
}

/* Palette of spec 9.2 (D-2.1): neutrals shared by all seven themes, then the
   accent of each theme. Values are the ones checked for WCAG contrast. */
:root[data-style="calm"][data-theme="light"] {
  --bg: #faf8f5;
  --bg-deep: #f3f0ea;
  --panel: #ffffff;
  --panel-strong: #ffffff;
  --panel-soft: #f6f3ee;
  --field: #ffffff;
  --field-strong: #f6f3ee;
  --text: #2a2b33;
  --muted: #666873;
  --faint: #666873;
  --line: #e8e4de;
  --line-strong: #d6d1c9;
  --line-soft: #f0ece6;
  --field-line: #8c8f9a;
  --scrim: rgb(42 43 51 / 38%);
  --danger: #a63a44;
  --success: #2b6e48;
  --warning: #7a5200;
  --info: #2f5580;
  --on-accent: #ffffff;
}

:root[data-style="calm"][data-theme="dark"] {
  --bg: #17181c;
  --bg-deep: #121317;
  --panel: #202127;
  --panel-strong: #25262d;
  --panel-soft: #272830;
  --field: #1b1c21;
  --field-strong: #272830;
  --text: #ececf0;
  --muted: #a6a8b3;
  --faint: #9496a2;
  --line: #34353d;
  --line-strong: #44454e;
  --line-soft: #2a2b32;
  --field-line: #7c7f8b;
  --scrim: rgb(5 6 9 / 62%);
  --danger: #f2b3b8;
  --success: #a9ddbd;
  --warning: #ebcb87;
  --info: #c6dcf4;
  --on-accent: #17181c;
  --shadow-card: 0 1px 2px rgb(0 0 0 / 30%), 0 12px 28px -16px rgb(0 0 0 / 55%);
  --shadow-lift: 0 2px 4px rgb(0 0 0 / 35%), 0 20px 40px -18px rgb(0 0 0 / 65%);
}

/* softBlue */
:root[data-style="calm"][data-accent="softBlue"][data-theme="light"] {
  --accent: #4b77a6;
  --accent-strong: #2f5580;
  --accent-readable: #2f5580;
  --accent-2: #2f5580;
  --accent-soft: #e5eef8;
}
:root[data-style="calm"][data-accent="softBlue"][data-theme="dark"] {
  --accent: #a9c8ea;
  --accent-strong: #a9c8ea;
  --accent-readable: #a9c8ea;
  --accent-2: #a9c8ea;
  --accent-soft: #243241;
}
/* sage */
:root[data-style="calm"][data-accent="sage"][data-theme="light"] {
  --accent: #557d62;
  --accent-strong: #35603f;
  --accent-readable: #35603f;
  --accent-2: #35603f;
  --accent-soft: #e6f0e9;
}
:root[data-style="calm"][data-accent="sage"][data-theme="dark"] {
  --accent: #a8cdb3;
  --accent-strong: #a8cdb3;
  --accent-readable: #a8cdb3;
  --accent-2: #a8cdb3;
  --accent-soft: #233229;
}
/* lavender */
:root[data-style="calm"][data-accent="lavender"][data-theme="light"] {
  --accent: #7461a6;
  --accent-strong: #54438a;
  --accent-readable: #54438a;
  --accent-2: #54438a;
  --accent-soft: #ede9f7;
}
:root[data-style="calm"][data-accent="lavender"][data-theme="dark"] {
  --accent: #c4b8ea;
  --accent-strong: #c4b8ea;
  --accent-readable: #c4b8ea;
  --accent-2: #c4b8ea;
  --accent-soft: #2e2a41;
}
/* beige */
:root[data-style="calm"][data-accent="beige"][data-theme="light"] {
  --accent: #8a6a4a;
  --accent-strong: #6b4e33;
  --accent-readable: #6b4e33;
  --accent-2: #6b4e33;
  --accent-soft: #f3ebe0;
}
:root[data-style="calm"][data-accent="beige"][data-theme="dark"] {
  --accent: #e2c9a6;
  --accent-strong: #e2c9a6;
  --accent-readable: #e2c9a6;
  --accent-2: #e2c9a6;
  --accent-soft: #372e24;
}
/* dustyPink */
:root[data-style="calm"][data-accent="dustyPink"][data-theme="light"] {
  --accent: #a55b76;
  --accent-strong: #85405b;
  --accent-readable: #85405b;
  --accent-2: #85405b;
  --accent-soft: #f8e8ee;
}
:root[data-style="calm"][data-accent="dustyPink"][data-theme="dark"] {
  --accent: #eab5c6;
  --accent-strong: #eab5c6;
  --accent-readable: #eab5c6;
  --accent-2: #eab5c6;
  --accent-soft: #3e2931;
}
/* turquoise */
:root[data-style="calm"][data-accent="turquoise"][data-theme="light"] {
  --accent: #2a7c7c;
  --accent-strong: #1d6565;
  --accent-readable: #1d6565;
  --accent-2: #1d6565;
  --accent-soft: #e0f1f0;
}
:root[data-style="calm"][data-accent="turquoise"][data-theme="dark"] {
  --accent: #98d5d1;
  --accent-strong: #98d5d1;
  --accent-readable: #98d5d1;
  --accent-2: #98d5d1;
  --accent-soft: #1f3836;
}
/* monochrome */
:root[data-style="calm"][data-accent="monochrome"][data-theme="light"] {
  --accent: #45474f;
  --accent-strong: #34363d;
  --accent-readable: #34363d;
  --accent-2: #34363d;
  --accent-soft: #eeeef1;
}
:root[data-style="calm"][data-accent="monochrome"][data-theme="dark"] {
  --accent: #d6d7dd;
  --accent-strong: #d6d7dd;
  --accent-readable: #d6d7dd;
  --accent-2: #d6d7dd;
  --accent-soft: #2d2e33;
}
:root[data-style="calm"] body {
  background: var(--bg);
  font-size: 15px;
  line-height: 1.55;
  letter-spacing: 0;
}

/* The grid backdrop belongs to the terminal look. */
:root[data-style="calm"] .bg-grid,
:root[data-style="calm"] .bg-aurora {
  display: none;
}

/* Headings and eyebrows: quiet sans, no shouting capitals. */
:root[data-style="calm"] h1,
:root[data-style="calm"] h2,
:root[data-style="calm"] h3 {
  font-family: var(--font-display);
  font-weight: 650;
  letter-spacing: -0.015em;
  text-transform: none;
}
:root[data-style="calm"] .view-head h2 {
  font-size: clamp(26px, 3vw, 34px);
  line-height: 1.15;
}
:root[data-style="calm"] .eyebrow,
:root[data-style="calm"] .section-kicker,
:root[data-style="calm"] .field-label,
:root[data-style="calm"] .stat-label,
:root[data-style="calm"] .card-label,
:root[data-style="calm"] .nav-group-label {
  font-family: var(--font);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--faint);
}
:root[data-style="calm"] .view-head {
  margin-bottom: 8px;
}
:root[data-style="calm"] .view-head-copy p {
  max-width: 62ch;
  color: var(--muted);
}

/* Surfaces: soft cards, no hard hairline boxes. */
:root[data-style="calm"] .ios-section,
:root[data-style="calm"] .study-card,
:root[data-style="calm"] .home-card,
:root[data-style="calm"] .progress-stat,
:root[data-style="calm"] .task-block,
:root[data-style="calm"] .task-editor,
:root[data-style="calm"] .stat-card,
:root[data-style="calm"] .list-row,
:root[data-style="calm"] .world-card,
:root[data-style="calm"] .collection-card,
:root[data-style="calm"] .feedback-item {
  border-color: var(--line);
  border-radius: var(--r-md);
  background: var(--panel);
  box-shadow: var(--shadow-card);
}
:root[data-style="calm"] .ios-section,
:root[data-style="calm"] .study-card,
:root[data-style="calm"] .home-card {
  padding: 22px 24px;
}
:root[data-style="calm"] .study-card:hover,
:root[data-style="calm"] .ios-section:hover,
:root[data-style="calm"] .home-card:hover {
  transform: none;
  box-shadow: var(--shadow-card);
  border-color: var(--line-strong);
}
:root[data-style="calm"] .list-row {
  padding: 14px 16px;
  margin-bottom: 8px;
}
:root[data-style="calm"] .task-builder {
  border-radius: var(--r-md);
  background: var(--panel-soft);
}

/* Controls */
:root[data-style="calm"] .btn,
:root[data-style="calm"] .icon-btn,
:root[data-style="calm"] .table-action {
  border-radius: var(--r-pill);
  font-weight: 560;
  letter-spacing: 0;
  text-transform: none;
}
:root[data-style="calm"] .btn--primary {
  box-shadow: 0 1px 2px rgb(20 24 40 / 14%);
}
:root[data-style="calm"] .btn--primary:hover {
  filter: brightness(1.06);
  box-shadow: 0 6px 18px -8px var(--accent);
}
:root[data-style="calm"] input,
:root[data-style="calm"] select,
:root[data-style="calm"] textarea,
:root[data-style="calm"] .input,
:root[data-style="calm"] .select,
:root[data-style="calm"] .textarea {
  border-radius: var(--r-sm);
  border: 1px solid var(--line-strong);
  background: var(--field);
  color: var(--text);
}
:root[data-style="calm"] input:focus-visible,
:root[data-style="calm"] select:focus-visible,
:root[data-style="calm"] textarea:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
:root[data-style="calm"] input[type="radio"],
:root[data-style="calm"] input[type="checkbox"] {
  accent-color: var(--accent);
}
:root[data-style="calm"] .segmented {
  border-radius: var(--r-pill);
  background: var(--panel-soft);
  border-color: var(--line);
  padding: 3px;
}
:root[data-style="calm"] .segmented button {
  border-radius: var(--r-pill);
}
:root[data-style="calm"] .pill,
:root[data-style="calm"] .status-pill,
:root[data-style="calm"] .role-pill,
:root[data-style="calm"] .chip {
  border-radius: var(--r-pill);
  letter-spacing: 0;
  text-transform: none;
}

/* Navigation */
:root[data-style="calm"] .sidebar {
  border-right: 1px solid var(--line);
  background: var(--panel);
}
:root[data-style="calm"] .nav-item {
  min-height: 42px;
  border: 0;
  border-radius: var(--r-sm);
  font-weight: 540;
  letter-spacing: 0;
  text-transform: none;
}
:root[data-style="calm"] .nav-item:hover {
  background: var(--panel-soft);
}
:root[data-style="calm"] .nav-item[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--text);
  box-shadow: inset 3px 0 0 var(--accent);
}
:root[data-style="calm"] .topbar {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
}
:root[data-style="calm"] .content {
  padding-block: 28px;
}

/* Dialogs and tables */
:root[data-style="calm"] .dialog-card {
  border-radius: var(--r-lg);
  border-color: var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-lift);
}
:root[data-style="calm"] dialog::backdrop {
  background: var(--scrim);
}
:root[data-style="calm"] .table-wrap {
  border-radius: var(--r-md);
  border-color: var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-card);
  overflow-x: auto;
}
:root[data-style="calm"] th {
  font-size: 12px;
  letter-spacing: 0.03em;
  text-transform: none;
}
:root[data-style="calm"] .empty-state {
  border-radius: var(--r-md);
  border: 1px dashed var(--line-strong);
  background: transparent;
}
:root[data-style="calm"] .toast {
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lift);
}

/* Accent choice shows its name (TZ lists them: Soft Blue, Sage, ...). The
   base sheet already uses ::after for the selected ring, so the name sits on
   ::before. */
:root[data-style="calm"] .accent-picker {
  display: grid;
  grid-template-columns: repeat(5, minmax(56px, 1fr));
  gap: 8px 6px;
  max-width: 420px;
}
:root[data-style="calm"] .accent-swatch {
  width: 28px;
  height: 28px;
  margin: 0 auto 22px;
  border-radius: var(--r-pill);
  border: 2px solid var(--panel);
  box-shadow: 0 0 0 1px var(--line-strong);
}
:root[data-style="calm"] .accent-swatch::before {
  content: attr(title);
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  translate: -50% 0;
  width: max-content;
  max-width: 58px;
  color: var(--faint);
  font-size: 11px;
  font-weight: 500;
  line-height: 1.15;
  text-align: center;
  white-space: normal;
  pointer-events: none;
}
:root[data-style="calm"] .accent-swatch.is-active {
  box-shadow:
    0 0 0 2px var(--panel),
    0 0 0 4px var(--accent);
}
:root[data-style="calm"] .accent-swatch.is-active::before {
  color: var(--text);
  font-weight: 650;
}
:root[data-style="calm"] .accent-swatch.is-active::after {
  display: none;
}
:root[data-style="calm"] .pricing-card,
:root[data-style="calm"] .auth-card {
  border-radius: var(--r-lg);
  background: var(--panel);
  box-shadow: var(--shadow-card);
}

@media (max-width: 767px) {
  :root[data-style="calm"] .ios-section,
  :root[data-style="calm"] .study-card,
  :root[data-style="calm"] .home-card {
    padding: 16px;
  }
  :root[data-style="calm"] .content {
    padding-block: 18px;
  }
}

/* Settings rows with a wide control stack the control under its label. */
:root[data-style="calm"] .setting-row:has(.accent-picker) {
  flex-direction: column;
  align-items: stretch;
  gap: 14px;
}
:root[data-style="calm"] .setting-row:has(.accent-picker) .accent-picker {
  max-width: none;
}

:root[data-style="calm"] .bottom-nav {
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 94%, transparent);
}
:root[data-style="calm"] .bottom-nav button {
  border: 0;
  border-radius: var(--r-md);
}
:root[data-style="calm"] .bottom-nav button.is-active {
  background: var(--accent-soft);
  color: var(--text);
}

@media (max-width: 767px) {
  :root[data-style="calm"] .accent-swatch {
    margin-bottom: 34px;
  }
}