/* ============================================================
   USMLE Wise — Design System
   Documentation site stylesheet + global tokens
   ============================================================ */

/* ---------- 1. DESIGN TOKENS ---------- */
:root {
  /* Brand — anchor colors from the emblem */
  --uw-blue-50:  #eef0fa;
  --uw-blue-100: #d8ddf2;
  --uw-blue-200: #b0b9e4;
  --uw-blue-300: #818dd0;
  --uw-blue-400: #5260b5;
  --uw-blue-500: #2c3386;   /* PRIMARY brand */
  --uw-blue-600: #262c75;
  --uw-blue-700: #1f2461;
  --uw-blue-800: #181c4d;
  --uw-blue-900: #0f1233;

  --uw-red-50:  #fdecec;
  --uw-red-100: #fad3d3;
  --uw-red-200: #f4a5a6;
  --uw-red-300: #ec7273;
  --uw-red-400: #e94849;
  --uw-red-500: #e32124;   /* ACCENT brand */
  --uw-red-600: #c61b1e;
  --uw-red-700: #a01517;
  --uw-red-800: #790f11;

  /* Neutral — warm-cool ink, soft paper */
  --uw-ink-50:  #fafafb;
  --uw-ink-75:  #f5f5f7;
  --uw-ink-100: #ececef;
  --uw-ink-200: #dcdce2;
  --uw-ink-300: #c2c3cb;
  --uw-ink-400: #9a9ca8;
  --uw-ink-500: #6d7080;
  --uw-ink-600: #4a4d5c;
  --uw-ink-700: #32343f;
  --uw-ink-800: #20222b;
  --uw-ink-900: #14151c;

  /* Semantic */
  --uw-success-50:  #e6f5ee;
  --uw-success-300: #6fe0a3;   /* bright: text/icons on dark blue surfaces */
  --uw-success-400: #4fc78a;   /* mid:   fills on dark blue surfaces */
  --uw-success-500: #2f8a5a;
  --uw-success-700: #1d5e3c;
  --uw-warning-50:  #fef5e3;
  --uw-warning-500: #c98a14;
  --uw-warning-700: #8a5e0a;
  --uw-info-50:     #e8effb;
  --uw-info-500:    #3a5fc0;
  --uw-info-700:    #25448f;

  /* Danger — destructive/error states. Distinct from Wise Red (CTAs). */
  --uw-danger-50:   #fef2f2;
  --uw-danger-100:  #fee2e2;
  --uw-danger-500:  #b91c1c;
  --uw-danger-700:  #7f1d1d;

  /* Surfaces */
  --uw-bg:           #fafaf9;
  --uw-surface:      #ffffff;
  --uw-surface-sunk: #f4f4f3;
  --uw-border:       #e6e6e2;
  --uw-border-strong:#d4d4cf;

  /* Type */
  --font-sans:    "Geist", "Inter", system-ui, -apple-system, "Helvetica Neue", sans-serif;
  --font-display: "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Type scale (modular ~1.25) */
  --fs-xs:   12px;
  --fs-sm:   13px;
  --fs-base: 15px;
  --fs-md:   16px;
  --fs-lg:   18px;
  --fs-xl:   22px;
  --fs-2xl:  28px;
  --fs-3xl:  36px;
  --fs-4xl:  48px;
  --fs-5xl:  64px;
  --fs-6xl:  84px;

  --lh-tight: 1.1;
  --lh-snug:  1.25;
  --lh-base:  1.55;
  --lh-loose: 1.75;

  /* Spacing — 4px base */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* Radius */
  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 16px;
  --r-2xl: 24px;
  --r-pill: 999px;

  /* Elevation */
  --shadow-xs: 0 1px 2px rgba(20, 21, 28, 0.05);
  --shadow-sm: 0 1px 2px rgba(20,21,28,.05), 0 1px 3px rgba(20,21,28,.06);
  --shadow-md: 0 2px 4px rgba(20,21,28,.04), 0 6px 14px rgba(20,21,28,.06);
  --shadow-lg: 0 4px 8px rgba(20,21,28,.04), 0 14px 28px rgba(20,21,28,.08);
  --shadow-xl: 0 8px 16px rgba(20,21,28,.06), 0 28px 56px rgba(20,21,28,.10);
  --shadow-blue: 0 8px 24px rgba(44, 51, 134, 0.18);
  --shadow-red:  0 8px 24px rgba(227, 33, 36, 0.20);

  /* Motion */
  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 140ms;
  --dur-med:  240ms;
  --dur-slow: 420ms;

  /* Layout */
  --sidebar-w: 268px;
  --content-max: 1080px;
}

/* ---------- 1b. DARK MODE TOKENS ---------- */
[data-theme="dark"] {
  /* Surfaces — deep blue-grey with subtle chroma */
  --uw-bg:           #12131a;
  --uw-surface:      #1b1c27;
  --uw-surface-sunk: #0e0f17;
  --uw-border:       rgba(255,255,255,0.08);
  --uw-border-strong:rgba(255,255,255,0.14);

  /* Ink scale — inverted: 900 is now near-white */
  --uw-ink-900: #ecedf5;
  --uw-ink-800: #d0d2de;
  --uw-ink-700: #acafc0;
  --uw-ink-600: #878a9a;
  --uw-ink-500: #636676;
  --uw-ink-400: #474a58;
  --uw-ink-300: #333542;
  --uw-ink-200: #272934;
  --uw-ink-100: #1e2030;
  --uw-ink-75:  #191b28;
  --uw-ink-50:  #141624;

  /* Shadows — heavier opacity on dark backgrounds */
  --shadow-xs: 0 1px 2px rgba(0,0,0,.4);
  --shadow-sm: 0 1px 2px rgba(0,0,0,.45), 0 1px 3px rgba(0,0,0,.5);
  --shadow-md: 0 2px 4px rgba(0,0,0,.4), 0 6px 14px rgba(0,0,0,.5);
  --shadow-lg: 0 4px 8px rgba(0,0,0,.4), 0 14px 28px rgba(0,0,0,.55);
  --shadow-xl: 0 8px 16px rgba(0,0,0,.45), 0 28px 56px rgba(0,0,0,.65);
  --shadow-blue: 0 8px 24px rgba(44,51,134,0.45);
  --shadow-red:  0 8px 24px rgba(227,33,36,0.45);
}

/* ---------- 2. RESET / GLOBALS ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 32px; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  color: var(--uw-ink-800);
  background: var(--uw-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
}

img, svg { max-width: 100%; display: block; }

a { color: var(--uw-blue-600); text-decoration: none; }
a:not(.btn):hover { color: var(--uw-blue-500); }

::selection { background: var(--uw-blue-100); color: var(--uw-blue-800); }

/* ---------- 3. DOC SITE LAYOUT ---------- */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  border-right: 1px solid var(--uw-border);
  background: #fff;
  overflow-y: auto;
  padding: var(--space-6) 0 var(--space-12);
  z-index: 10;
}

.sidebar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0 var(--space-6) var(--space-6);
  border-bottom: 1px solid var(--uw-border);
  margin-bottom: var(--space-4);
}
.sidebar__brand img { width: 36px; height: 36px; }
.sidebar__brand-name {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  color: var(--uw-ink-900);
  line-height: 1.1;
}
.sidebar__brand-sub {
  font-size: 11px;
  color: var(--uw-ink-500);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-group { padding: var(--space-3) var(--space-3) var(--space-2); }
.nav-group__label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--uw-ink-500);
  padding: var(--space-2) var(--space-3);
  font-weight: 600;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 7px var(--space-3);
  border-radius: var(--r-sm);
  color: var(--uw-ink-600);
  font-size: 13.5px;
  line-height: 1.3;
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast);
  cursor: pointer;
}
.nav-link:hover { background: var(--uw-ink-75); color: var(--uw-ink-900); }
.nav-link.is-active {
  background: var(--uw-blue-50);
  color: var(--uw-blue-700);
  font-weight: 600;
}
.nav-link__num {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--uw-ink-500);
  min-width: 18px;
}
.nav-link.is-active .nav-link__num { color: var(--uw-blue-500); }

.content {
  min-width: 0;
  padding: var(--space-12) var(--space-16) var(--space-24);
  max-width: calc(var(--content-max) + var(--space-16) * 2);
}

@media (max-width: 920px) {
  .app { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed; top: 0; left: 0; height: auto; width: 100%;
    border-right: none; border-bottom: 1px solid var(--uw-border);
    padding: var(--space-3) var(--space-4);
  }
  .sidebar__brand { padding: 0; border-bottom: none; margin-bottom: 0; }
  .nav-group { display: none; }
  .content { padding: var(--space-10) var(--space-5) var(--space-16); margin-top: 70px; }
}

/* ---------- 4. SECTION SHELL ---------- */
.section {
  padding: var(--space-12) 0;
  border-bottom: 1px solid var(--uw-border);
  scroll-margin-top: var(--space-8);
}
.section:last-child { border-bottom: none; }

.section__eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--uw-red-500);
  margin-bottom: var(--space-3);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.section__eyebrow::before {
  content: ""; width: 6px; height: 6px; background: var(--uw-red-500); border-radius: 50%;
}
.section__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--fs-4xl);
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: var(--uw-ink-900);
  margin: 0 0 var(--space-4);
}
.section__lede {
  font-size: var(--fs-lg);
  line-height: 1.55;
  color: var(--uw-ink-600);
  max-width: 64ch;
  margin: 0 0 var(--space-8);
}

.h-sub {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--fs-xl);
  letter-spacing: -0.01em;
  color: var(--uw-ink-900);
  margin: var(--space-10) 0 var(--space-4);
}
.h-sub--first { margin-top: 0; }

.note {
  font-size: 13.5px;
  color: var(--uw-ink-500);
  line-height: 1.55;
  max-width: 64ch;
  margin: 0 0 var(--space-6);
}

/* ---------- 5. UTILS ---------- */
.row { display: flex; gap: var(--space-4); }
.row--wrap { flex-wrap: wrap; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
@media (max-width: 720px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.demo {
  background: var(--uw-surface);
  border: 1px solid var(--uw-border);
  border-radius: var(--r-lg);
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
}
.demo--padded { padding: var(--space-12); }
.demo--sunk { background: var(--uw-surface-sunk); }
.demo--canvas {
  background-image: radial-gradient(circle at 1px 1px, var(--uw-ink-200) 1px, transparent 0);
  background-size: 16px 16px;
  background-color: var(--uw-surface);
}
.demo__label {
  position: absolute; top: 12px; right: 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--uw-ink-500);
}

.caption {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-top: var(--space-3);
  font-size: 12px;
  color: var(--uw-ink-500);
}
.caption code, code.inline {
  font-family: var(--font-mono); font-size: 11.5px;
  background: var(--uw-ink-75);
  padding: 2px 6px; border-radius: 4px;
  color: var(--uw-ink-700);
}

/* ---------- 6. HERO ---------- */
.hero {
  position: relative;
  padding: var(--space-16) 0 var(--space-20);
  border-bottom: 1px solid var(--uw-border);
}
.hero__meta {
  display: flex; gap: var(--space-3); align-items: center;
  margin-bottom: var(--space-6);
}
.hero__tag {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--uw-ink-500);
  padding: 4px 10px;
  border: 1px solid var(--uw-border-strong);
  border-radius: var(--r-pill);
}
.hero__tag--dot::before {
  content: ""; display: inline-block; width: 6px; height: 6px;
  background: var(--uw-success-500); border-radius: 50%;
  margin-right: 8px; vertical-align: middle;
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(48px, 7vw, 84px);
  line-height: var(--lh-tight);
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-6);
  color: var(--uw-ink-900);
  max-width: 18ch;
}
.hero h1 em {
  font-style: italic;
  color: var(--uw-blue-500);
}
.hero h1 .accent {
  color: var(--uw-red-500); font-style: italic;
}
.hero__sub {
  font-size: var(--fs-xl);
  line-height: 1.5;
  color: var(--uw-ink-600);
  max-width: 56ch;
  margin: 0 0 var(--space-10);
  font-weight: 400;
}
.hero__stats {
  display: grid; grid-template-columns: repeat(4, auto);
  gap: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--uw-border);
  max-width: 760px;
}
@media (max-width: 720px) {
  .hero__stats { grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
}
.hero__stat-num {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  color: var(--uw-ink-900);
  line-height: 1;
}
.hero__stat-label {
  font-size: 12px;
  color: var(--uw-ink-500);
  margin-top: 4px;
  letter-spacing: 0.03em;
}

/* ---------- 7. LOGO ---------- */
.lockup {
  display: flex; align-items: center; gap: var(--space-4);
}
.lockup img { width: 56px; height: 56px; }
.wordmark {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 28px;
  letter-spacing: -0.022em;
  color: var(--uw-ink-900);
  line-height: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.wordmark__main {
  display: inline-flex; align-items: baseline; gap: 6px;
}
.wordmark__usmle { color: var(--uw-blue-500); }
.wordmark__wise  { color: var(--uw-ink-900); font-style: italic; font-family: var(--font-display); font-weight: 400; font-size: 32px; letter-spacing: -0.02em; }
.wordmark__sub {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 9.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--uw-ink-500);
}

.lockup--stacked {
  flex-direction: column; align-items: center; text-align: center; gap: var(--space-3);
}
.lockup--stacked img { width: 80px; height: 80px; }
.lockup--stacked .wordmark { align-items: center; }

.lockup--dark { background: var(--uw-blue-800); color: #fff; padding: var(--space-8); border-radius: var(--r-lg); }
.lockup--dark .wordmark__usmle { color: #fff; }
.lockup--dark .wordmark__wise  { color: var(--uw-red-300); }
.lockup--dark .wordmark__sub   { color: rgba(255,255,255,.55); }

.logo-frame {
  background: var(--uw-surface);
  border: 1px solid var(--uw-border);
  border-radius: var(--r-lg);
  padding: var(--space-10) var(--space-8);
  display: flex; align-items: center; justify-content: center;
  min-height: 200px;
  position: relative;
}
.logo-frame--dark { background: var(--uw-ink-900); border-color: var(--uw-ink-800); }
.logo-frame--blue { background: var(--uw-blue-500); border-color: var(--uw-blue-700); }
.logo-frame--red  { background: var(--uw-red-500);  border-color: var(--uw-red-700); }

.logo-frame__caption {
  position: absolute; bottom: 12px; left: 16px;
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--uw-ink-500);
}
.logo-frame--dark .logo-frame__caption,
.logo-frame--blue .logo-frame__caption,
.logo-frame--red .logo-frame__caption { color: rgba(255,255,255,.55); }

.logo-frame--clearspace { padding: 0; min-height: 220px; }
.cs-canvas {
  position: relative; width: 100%; height: 220px; display:flex; align-items:center; justify-content:center;
  background: repeating-linear-gradient(45deg, var(--uw-ink-75), var(--uw-ink-75) 6px, transparent 6px, transparent 12px);
}
.cs-inner {
  position: relative; display: flex; align-items: center; gap: 16px;
  background: #fff;
  padding: 24px 32px; border-radius: 8px;
}
.cs-inner::before, .cs-inner::after,
.cs-inner .cs-v::before, .cs-inner .cs-v::after {
  content: ""; position: absolute; background: var(--uw-red-400); opacity: .35;
}
.cs-inner::before { top: -8px; left: 0; right: 0; height: 1px; }
.cs-inner::after  { bottom: -8px; left: 0; right: 0; height: 1px; }
.cs-inner .cs-v::before { left: -8px; top: 0; bottom: 0; width: 1px; }
.cs-inner .cs-v::after  { right: -8px; top: 0; bottom: 0; width: 1px; }
.cs-x {
  position: absolute; font-family: var(--font-mono); font-size: 10px; color: var(--uw-red-500);
  background: #fff; padding: 1px 4px;
}
.cs-x.t { top: -16px; left: 50%; transform: translateX(-50%); }
.cs-x.b { bottom: -16px; left: 50%; transform: translateX(-50%); }
.cs-x.l { left: -22px; top: 50%; transform: translateY(-50%); }
.cs-x.r { right: -22px; top: 50%; transform: translateY(-50%); }

/* ---------- 8. COLOR ---------- */
.swatch {
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--uw-border);
  display: flex; flex-direction: column;
  background: #fff;
}
.swatch__color {
  height: 110px;
  position: relative;
}
.swatch__color--check {
  background-image:
    linear-gradient(45deg, rgba(0,0,0,.04) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(0,0,0,.04) 25%, transparent 25%);
  background-size: 12px 12px;
  background-position: 0 0, 0 6px;
}
.swatch__info {
  padding: var(--space-3) var(--space-4);
  font-size: 12.5px;
  border-top: 1px solid var(--uw-border);
}
.swatch__name {
  font-weight: 600;
  color: var(--uw-ink-800);
  letter-spacing: -0.005em;
  margin-bottom: 2px;
  display: flex; justify-content: space-between; gap: 8px;
}
.swatch__hex {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--uw-ink-500);
  text-transform: uppercase;
}

.scale {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  border-radius: var(--r-md); overflow: hidden;
  border: 1px solid var(--uw-border);
}
.scale__step {
  height: 64px;
  display: flex; align-items: flex-end; justify-content: center;
  padding-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: rgba(0,0,0,.5);
}
.scale__step--light { color: rgba(255,255,255,.75); }

/* ---------- 9. TYPOGRAPHY DEMO ---------- */
.type-row {
  display: grid; grid-template-columns: 110px 1fr 180px;
  align-items: baseline;
  padding: var(--space-5) 0;
  border-top: 1px solid var(--uw-border);
}
.type-row:first-child { border-top: none; }
.type-row__label {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--uw-ink-500);
}
.type-row__meta {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--uw-ink-500);
  text-align: right;
}
.type-display { font-family: var(--font-display); font-weight: 400; line-height: 1.05; letter-spacing: -0.015em; color: var(--uw-ink-900); }
.type-sans    { font-family: var(--font-sans); font-weight: 400; line-height: 1.25; color: var(--uw-ink-900); }
.type-sans b  { font-weight: 600; }

.specimen {
  background: #fff; border: 1px solid var(--uw-border); border-radius: var(--r-lg);
  padding: var(--space-10) var(--space-8);
}
.specimen__big {
  font-family: var(--font-display);
  font-size: clamp(80px, 14vw, 180px);
  line-height: 0.9;
  color: var(--uw-blue-500);
  letter-spacing: -0.04em;
  margin: 0 0 var(--space-3);
}
.specimen__big em { color: var(--uw-red-500); font-style: italic; }
.specimen__meta {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6);
  padding-top: var(--space-6); border-top: 1px solid var(--uw-border);
}
.specimen__meta div { font-size: 12px; color: var(--uw-ink-500); }
.specimen__meta b { color: var(--uw-ink-800); display: block; margin-bottom: 2px; font-weight: 600; }

/* ---------- 10. SPACING ---------- */
.spacing-row {
  display: grid; grid-template-columns: 80px 1fr 110px;
  align-items: center;
  padding: var(--space-3) 0;
  border-top: 1px solid var(--uw-border);
  font-size: 13px;
}
.spacing-row:first-child { border-top: none; }
.spacing-row__token { font-family: var(--font-mono); color: var(--uw-ink-700); font-size: 12px; }
.spacing-row__bar {
  background: var(--uw-blue-500);
  height: 12px;
  border-radius: 2px;
}
.spacing-row__val { font-family: var(--font-mono); font-size: 12px; color: var(--uw-ink-500); text-align: right; }

/* ---------- 11. GRID DEMO ---------- */
.grid-demo {
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px;
  background: var(--uw-blue-50);
  padding: 16px;
  border-radius: var(--r-md);
}
.grid-demo__col {
  background: var(--uw-blue-200);
  height: 60px;
  border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 11px; color: var(--uw-blue-800);
}

/* ---------- 12. BUTTONS ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 14px;
  line-height: 1;
  padding: 12px 20px;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--dur-fast), background var(--dur-fast),
              box-shadow var(--dur-med), border-color var(--dur-fast);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: -0.005em;
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 2px solid var(--uw-blue-300); outline-offset: 2px; }

.btn--primary {
  background: var(--uw-red-500); color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover { background: var(--uw-red-600); box-shadow: var(--shadow-red); }

.btn--secondary {
  background: var(--uw-blue-500); color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn--secondary:hover { background: var(--uw-blue-600); box-shadow: var(--shadow-blue); }

.btn--outline {
  background: #fff; color: var(--uw-ink-800);
  border-color: var(--uw-border-strong);
}
.btn--outline:hover { border-color: var(--uw-ink-700); background: var(--uw-ink-75); }

.btn--ghost {
  background: transparent; color: var(--uw-ink-700);
}
.btn--ghost:hover { background: var(--uw-ink-75); color: var(--uw-ink-900); }

.btn--link {
  background: transparent; color: var(--uw-blue-500);
  padding: 6px 4px;
  text-decoration: none;
}
.btn--link:hover { color: var(--uw-blue-700); text-decoration: underline; }

.btn--lg { padding: 14px 24px; font-size: 15px; border-radius: var(--r-md); }
.btn--xl { padding: 18px 32px; font-size: 16px; border-radius: var(--r-md); }
.btn--sm { padding: 8px 14px; font-size: 13px; }
.btn--xs { padding: 6px 10px; font-size: 12px; }

.btn--disabled, .btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }

.btn--icon { padding: 10px; aspect-ratio: 1; }

/* Lucide generated SVGs — inline display fix */
svg.lucide {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}

/* arrow icon */
.ic-arrow {
  width: 14px; height: 14px;
  display: inline-block;
  transition: transform var(--dur-med) var(--ease-out);
}
.btn:hover .ic-arrow { transform: translateX(3px); }

/* ---------- 13. FORMS ---------- */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: var(--space-4); }
.field__label {
  font-size: 13px; font-weight: 500; color: var(--uw-ink-800);
}
.field__hint { font-size: 12px; color: var(--uw-ink-500); }
.field__error { font-size: 12px; color: var(--uw-danger-500); display:flex; align-items:center; gap: 4px; }

.input, .textarea, .select {
  font-family: var(--font-sans); font-size: 14px;
  padding: 11px 14px;
  background: #fff;
  border: 1px solid var(--uw-border-strong);
  border-radius: var(--r-md);
  color: var(--uw-ink-900);
  width: 100%;
  transition: border var(--dur-fast), box-shadow var(--dur-fast);
}
.input:hover, .textarea:hover, .select:hover { border-color: var(--uw-ink-500); }
.input:focus, .textarea:focus, .select:focus {
  outline: none; border-color: var(--uw-blue-500);
  box-shadow: 0 0 0 3px var(--uw-blue-100);
}
.input::placeholder { color: var(--uw-ink-400); }

.input--error { border-color: var(--uw-danger-500); }
.input--error:focus { box-shadow: 0 0 0 3px var(--uw-danger-100); }

.input--icon-wrap { position: relative; }
.input--icon-wrap .input { padding-left: 40px; }
.input--icon-wrap svg {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--uw-ink-400);
}

.checkbox, .radio {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 14px; cursor: pointer;
  color: var(--uw-ink-800);
}
.checkbox input, .radio input {
  appearance: none; -webkit-appearance: none;
  width: 18px; height: 18px;
  border: 1.5px solid var(--uw-border-strong);
  background: #fff;
  display: grid; place-items: center;
  cursor: pointer;
  transition: all var(--dur-fast);
}
.checkbox input { border-radius: 4px; }
.radio input { border-radius: 50%; }
.checkbox input:checked, .radio input:checked {
  background: var(--uw-blue-500); border-color: var(--uw-blue-500);
}
.checkbox input:checked::after {
  content: ""; width: 10px; height: 6px;
  border-left: 2px solid #fff; border-bottom: 2px solid #fff;
  transform: rotate(-45deg) translate(1px, -1px);
}
.radio input:checked::after {
  content: ""; width: 6px; height: 6px; background: #fff; border-radius: 50%;
}

.toggle {
  display: inline-flex; align-items: center; gap: 10px;
  cursor: pointer; font-size: 14px; color: var(--uw-ink-800);
}
.toggle input { appearance: none; -webkit-appearance: none; display: none; }
.toggle__track {
  width: 36px; height: 20px;
  background: var(--uw-ink-200);
  border-radius: 999px;
  position: relative;
  transition: background var(--dur-fast);
}
.toggle__track::after {
  content: "";
  position: absolute; top: 2px; left: 2px;
  width: 16px; height: 16px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,.2);
  transition: transform var(--dur-fast) var(--ease-out);
}
.toggle input:checked + .toggle__track { background: var(--uw-blue-500); }
.toggle input:checked + .toggle__track::after { transform: translateX(16px); }

/* ---------- 14. CARDS ---------- */
.card {
  background: var(--uw-surface);
  border: 1px solid var(--uw-border);
  border-radius: var(--r-lg);
  padding: var(--space-5);
  transition: box-shadow var(--dur-med), transform var(--dur-med), border-color var(--dur-med);
}
.card--hover:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: var(--uw-border-strong); }
.card--flat { box-shadow: none; }
.card--elevated { box-shadow: var(--shadow-md); border-color: transparent; }
.card--accent {
  background: var(--uw-blue-500); color: #fff; border-color: var(--uw-blue-700);
}
.card__eyebrow {
  font-family: var(--font-mono);
  font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--uw-ink-500); margin-bottom: 8px;
}
.card__title { font-weight: 600; font-size: 16px; color: var(--uw-ink-900); margin: 0 0 6px; letter-spacing: -0.01em; }
.card__body { font-size: 13.5px; color: var(--uw-ink-600); line-height: 1.55; }

/* ---------- 15. BADGES / TAGS ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 11.5px; font-weight: 500;
  padding: 3px 9px;
  border-radius: var(--r-pill);
  letter-spacing: 0.01em;
}
.badge--blue   { background: var(--uw-blue-50); color: var(--uw-blue-700); }
.badge--red    { background: var(--uw-red-50); color: var(--uw-red-700); }
.badge--green  { background: var(--uw-success-50); color: var(--uw-success-700); }
.badge--amber  { background: var(--uw-warning-50); color: var(--uw-warning-700); }
.badge--neutral{ background: var(--uw-ink-75); color: var(--uw-ink-700); }
.badge--solid  { background: var(--uw-blue-500); color: #fff; }
.badge--dot::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor;
}

/* ---------- 16. NAV / TABS / BREADCRUMB ---------- */
.tabs {
  display: inline-flex; gap: 0;
  border-bottom: 1px solid var(--uw-border);
}
.tabs__btn {
  font-family: var(--font-sans); background: none; border: none;
  padding: 12px 16px; font-size: 13.5px;
  color: var(--uw-ink-500); cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color var(--dur-fast);
}
.tabs__btn:hover { color: var(--uw-ink-800); }
.tabs__btn.is-active {
  color: var(--uw-ink-900); font-weight: 600;
  border-bottom-color: var(--uw-red-500);
}

.breadcrumb { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--uw-ink-500); }
.breadcrumb a { color: var(--uw-ink-500); }
.breadcrumb a:hover { color: var(--uw-ink-800); }
.breadcrumb__sep { color: var(--uw-ink-300); }
.breadcrumb__current { color: var(--uw-ink-900); font-weight: 500; }

.pagination { display: inline-flex; gap: 4px; align-items: center; }
.pagination__btn {
  width: 32px; height: 32px;
  border: 1px solid var(--uw-border);
  background: #fff;
  border-radius: var(--r-sm);
  font-size: 13px;
  font-family: var(--font-sans);
  color: var(--uw-ink-700);
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
}
.pagination__btn.is-active { background: var(--uw-blue-500); color: #fff; border-color: var(--uw-blue-500); }
.pagination__btn:hover:not(.is-active) { background: var(--uw-ink-75); }

/* ---------- 17. NAVBAR / TOP NAV ---------- */
.topnav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
  background: #fff;
  border: 1px solid var(--uw-border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-xs);
}
.topnav__links { display: flex; gap: 8px; align-items: center; }
.topnav__link {
  font-size: 13.5px; color: var(--uw-ink-700);
  padding: 6px 12px; border-radius: var(--r-sm);
}
.topnav__link:hover { background: var(--uw-ink-75); color: var(--uw-ink-900); }
.topnav__link.is-active { color: var(--uw-blue-500); font-weight: 600; }

/* ---------- 18. SIDEBAR (in-app) ---------- */
.appside {
  width: 230px; background: #fff;
  border: 1px solid var(--uw-border); border-radius: var(--r-lg);
  padding: 16px;
  display: flex; flex-direction: column; gap: 4px;
}
.appside__head { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--uw-ink-500); padding: 8px 10px; }
.appside__item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: var(--r-sm);
  font-size: 13.5px; color: var(--uw-ink-700); cursor: pointer;
}
.appside__item:hover { background: var(--uw-ink-75); }
.appside__item.is-active { background: var(--uw-blue-50); color: var(--uw-blue-700); font-weight: 600; }
.appside__dot {
  width: 18px; height: 18px;
  background: var(--uw-ink-100); border-radius: 4px;
  display: inline-flex; align-items: center; justify-content: center; color: var(--uw-ink-500);
  font-size: 10px;
}
.appside__item.is-active .appside__dot { background: var(--uw-blue-500); color: #fff; }

/* ---------- 19. PROGRESS ---------- */
.progress { background: var(--uw-ink-100); height: 8px; border-radius: 999px; overflow: hidden; }
.progress__bar { background: var(--uw-blue-500); height: 100%; border-radius: 999px; transition: width 600ms var(--ease-out); }
.progress__bar--red { background: var(--uw-red-500); }
.progress__bar--green { background: var(--uw-success-500); }

.progress-ring {
  --p: 65;
  --size: 84px;
  --thick: 8px;
  width: var(--size); height: var(--size);
  border-radius: 50%;
  background: conic-gradient(var(--uw-blue-500) calc(var(--p) * 1%), var(--uw-ink-100) 0);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  position: relative;
}
.progress-ring::after {
  content: "";
  position: absolute; inset: var(--thick);
  background: #fff;
  border-radius: 50%;
}
.progress-ring__label {
  position: relative; z-index: 1;
  font-family: var(--font-sans); font-weight: 700; font-size: 15px;
  line-height: 1;
  color: var(--uw-ink-900);
}
.progress-ring__sub {
  font-family: var(--font-mono); font-size: 8.5px; color: var(--uw-ink-500);
  letter-spacing: 0.06em; text-transform: uppercase;
  z-index: 1; position: relative;
  line-height: 1;
}

.streak {
  display: grid; grid-template-columns: repeat(14, 1fr); gap: 4px;
}
.streak__day {
  aspect-ratio: 1; border-radius: 3px; background: var(--uw-ink-100);
}
.streak__day.l1 { background: var(--uw-blue-200); }
.streak__day.l2 { background: var(--uw-blue-400); }
.streak__day.l3 { background: var(--uw-blue-600); }

/* ---------- 20. KPI ---------- */
.kpi {
  background: #fff; border: 1px solid var(--uw-border);
  border-radius: var(--r-lg);
  padding: var(--space-5);
}
.kpi__label { font-size: 12px; color: var(--uw-ink-500); letter-spacing: 0.02em; }
.kpi__val {
  font-family: var(--font-display);
  font-size: 38px; line-height: 1;
  color: var(--uw-ink-900);
  margin: 6px 0 8px;
  letter-spacing: -0.02em;
}
.kpi__delta {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 12px;
}
.kpi__delta--up { color: var(--uw-success-700); }
.kpi__delta--down { color: var(--uw-red-600); }

/* ---------- 21. MENTOR ---------- */
.mentor {
  background: #fff; border: 1px solid var(--uw-border); border-radius: var(--r-lg);
  padding: var(--space-5);
  display: flex; gap: 16px; align-items: flex-start;
}
.avatar {
  width: 56px; height: 56px;
  border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--uw-blue-400), var(--uw-blue-700));
  display: grid; place-items: center;
  font-family: var(--font-display); font-size: 22px; color: #fff;
  letter-spacing: -0.02em;
  position: relative;
}
.avatar--red { background: linear-gradient(135deg, var(--uw-red-400), var(--uw-red-700)); }
.avatar--green { background: linear-gradient(135deg, #6dbf8e, var(--uw-success-700)); }
.avatar__online {
  position: absolute; bottom: 0; right: 0;
  width: 14px; height: 14px;
  background: var(--uw-success-500);
  border: 2px solid #fff;
  border-radius: 50%;
}
.mentor__name { font-weight: 600; color: var(--uw-ink-900); font-size: 15px; letter-spacing: -0.01em; }
.mentor__title { font-size: 12.5px; color: var(--uw-ink-500); margin-top: 2px; }
.mentor__meta { display: flex; gap: 12px; margin-top: 10px; font-size: 12px; color: var(--uw-ink-600); }
.mentor__meta span { display: inline-flex; align-items: center; gap: 4px; }

/* ---------- 22. COURSE CARD ---------- */
.course {
  background: #fff; border: 1px solid var(--uw-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: box-shadow var(--dur-med), transform var(--dur-med);
}
.course:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.course__cover {
  height: 130px;
  position: relative;
  display: flex; align-items: flex-end; padding: 14px;
  color: #fff;
}
.course__cover--step1 { background: linear-gradient(135deg, var(--uw-blue-500), var(--uw-blue-800)); }
.course__cover--step2 { background: linear-gradient(135deg, var(--uw-red-500), var(--uw-red-700)); }
.course__cover--step3 { background: linear-gradient(135deg, var(--uw-ink-700), var(--uw-ink-900)); }
.course__cover--match { background: linear-gradient(135deg, var(--uw-success-500), #155333); }
.course__cover::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.18) 1.5px, transparent 1.5px);
  background-size: 14px 14px; opacity: .4;
}
.course__sticker {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em;
  text-transform: uppercase; background: rgba(0,0,0,.25);
  padding: 4px 8px; border-radius: 999px;
  position: relative; z-index: 1;
}
.course__body { padding: var(--space-4); }
.course__title { font-size: 15px; font-weight: 600; color: var(--uw-ink-900); letter-spacing: -0.01em; margin: 0 0 4px; }
.course__sub { font-size: 12.5px; color: var(--uw-ink-500); margin-bottom: 12px; }
.course__meta {
  display: flex; gap: 10px; font-size: 11.5px; color: var(--uw-ink-500); margin-top: 12px;
  border-top: 1px solid var(--uw-border); padding-top: 12px;
}

/* ---------- 23. TESTIMONIAL ---------- */
.quote {
  background: #fff; border: 1px solid var(--uw-border);
  border-radius: var(--r-lg);
  padding: var(--space-6);
  display: flex; flex-direction: column;
  gap: var(--space-4);
}
.quote__mark {
  font-family: var(--font-display); font-size: 56px; line-height: 0.7;
  color: var(--uw-red-500); height: 24px;
}
.quote__text {
  font-family: var(--font-display); font-style: italic;
  font-size: 20px; line-height: 1.35;
  color: var(--uw-ink-800);
  letter-spacing: -0.01em;
}
.quote__author { display: flex; align-items: center; gap: 12px; margin-top: auto; }
.quote__name { font-size: 13.5px; font-weight: 600; color: var(--uw-ink-900); }
.quote__role { font-size: 12px; color: var(--uw-ink-500); }

/* ---------- 24. TABLES ---------- */
.table-wrap {
  background: #fff; border: 1px solid var(--uw-border);
  border-radius: var(--r-lg); overflow: hidden;
}
.table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.table th, .table td { padding: 12px 16px; text-align: left; }
.table th {
  font-weight: 600; color: var(--uw-ink-700);
  font-size: 11.5px; letter-spacing: 0.06em; text-transform: uppercase;
  background: var(--uw-surface-sunk);
  border-bottom: 1px solid var(--uw-border);
}
.table td { border-bottom: 1px solid var(--uw-border); color: var(--uw-ink-700); }
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: var(--uw-ink-50, #fafaf9); }

/* ---------- 25. ICONS ---------- */
.icon-grid {
  display: grid; grid-template-columns: repeat(8, 1fr); gap: var(--space-2);
}
.icon-cell {
  aspect-ratio: unset;
  padding: var(--space-4) var(--space-2);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--uw-border);
  border-radius: var(--r-md);
  display: grid; place-items: center;
  color: var(--uw-ink-700);
  transition: all var(--dur-fast);
}
.icon-cell:hover { color: var(--uw-blue-500); border-color: var(--uw-blue-300); }
.icon-cell span { font-family: var(--font-mono); font-size: 9px; color: var(--uw-ink-400); text-align: center; line-height: 1.3; }

@media (max-width: 720px) {
  .icon-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ---------- 26. SHADOW / ELEVATION TILES ---------- */
.shadow-tile {
  background: #fff; border-radius: var(--r-lg);
  padding: var(--space-6);
  text-align: center;
}
.shadow-tile__name { font-family: var(--font-mono); font-size: 11px; color: var(--uw-ink-500); letter-spacing: 0.06em; text-transform: uppercase; }
.shadow-tile__val { font-family: var(--font-mono); font-size: 11px; color: var(--uw-ink-500); margin-top: 4px; word-break: break-all; }

/* ---------- 27. LANDING / DASHBOARD MOCKS ---------- */
.lp {
  background: #fff;
  border: 1px solid var(--uw-border);
  border-radius: var(--r-xl);
  overflow: hidden;
}
.lp__nav {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 28px;
  border-bottom: 1px solid var(--uw-border);
}
.lp__nav-links { display: flex; gap: 6px; font-size: 13.5px; color: var(--uw-ink-700); }
.lp__nav-links a { padding: 6px 10px; border-radius: var(--r-sm); color: inherit; }
.lp__nav-links a:hover { background: var(--uw-ink-75); color: var(--uw-ink-900); }

.lp__hero {
  padding: var(--space-12) var(--space-12) var(--space-16);
  display: grid; grid-template-columns: 1.2fr 1fr;
  gap: var(--space-12);
  align-items: center;
  background:
    radial-gradient(800px 400px at 90% 0%, var(--uw-blue-50), transparent),
    #fff;
}
@media (max-width: 800px) { .lp__hero { grid-template-columns: 1fr; padding: var(--space-8); } }

.lp__h1 {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(38px, 5vw, 60px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--uw-ink-900);
  margin: 0 0 var(--space-5);
}
.lp__h1 em { color: var(--uw-red-500); font-style: italic; }
.lp__h1-sub {
  font-size: 16px;
  color: var(--uw-ink-600);
  line-height: 1.55;
  max-width: 50ch;
  margin: 0 0 var(--space-6);
}
.lp__hero-cta { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.lp__trust {
  display: flex; gap: 16px; margin-top: var(--space-8);
  font-size: 12px; color: var(--uw-ink-500);
}
.lp__trust span { display: inline-flex; align-items: center; gap: 6px; }
.lp__trust b { color: var(--uw-ink-900); font-weight: 600; }

.lp__visual {
  background: var(--uw-blue-500);
  border-radius: var(--r-lg);
  padding: var(--space-6);
  color: #fff;
  position: relative; overflow: hidden;
  box-shadow: var(--shadow-xl);
}
.lp__visual::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.12) 1px, transparent 1px);
  background-size: 16px 16px;
}
.lp__visual-card {
  background: rgba(255,255,255,.07); backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 10px; padding: 14px;
  position: relative; z-index: 1;
  margin-bottom: 10px;
}
.lp__visual-card b { font-size: 13px; font-weight: 600; letter-spacing: -0.005em; }
.lp__visual-card small { display:block; font-size: 11.5px; color: rgba(255,255,255,.6); margin-top: 2px; }

.lp__feats {
  padding: var(--space-12);
  border-top: 1px solid var(--uw-border);
  background: var(--uw-bg);
}
.lp__feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
@media (max-width: 800px) { .lp__feat-grid { grid-template-columns: 1fr; } }

.lp__feat {
  background: #fff; padding: var(--space-6);
  border: 1px solid var(--uw-border);
  border-radius: var(--r-lg);
}
.lp__feat-ic {
  width: 36px; height: 36px;
  background: var(--uw-blue-50); color: var(--uw-blue-500);
  border-radius: var(--r-md);
  display: grid; place-items: center;
  margin-bottom: 14px;
}
.lp__feat h4 { margin: 0 0 6px; font-size: 15px; font-weight: 600; color: var(--uw-ink-900); }
.lp__feat p { margin: 0; font-size: 13.5px; color: var(--uw-ink-600); line-height: 1.55; }

/* Dashboard mock */
.dash {
  background: var(--uw-bg);
  border: 1px solid var(--uw-border);
  border-radius: var(--r-xl);
  overflow: hidden;
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 580px;
}
@media (max-width: 800px) { .dash { grid-template-columns: 1fr; } }

.dash__side {
  background: #fff; border-right: 1px solid var(--uw-border);
  padding: 20px 14px;
}
.dash__side .lockup { margin-bottom: var(--space-6); padding: 0 6px; }
.dash__side .lockup img { width: 28px; height: 28px; }
.dash__side .wordmark__main { font-size: 16px; }
.dash__side .wordmark__wise { font-size: 18px; }
.dash__side .wordmark__sub { display: none; }

.dash__main { padding: 22px 28px; overflow: hidden; }
.dash__greeting {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: var(--space-6);
}
.dash__greeting h2 {
  font-family: var(--font-display); font-weight: 400;
  font-size: 32px; letter-spacing: -0.02em; color: var(--uw-ink-900);
  margin: 0 0 4px;
}
.dash__greeting p { margin: 0; font-size: 13.5px; color: var(--uw-ink-500); }

.dash__row {
  display: grid; grid-template-columns: 2fr 1fr; gap: var(--space-4);
  margin-top: var(--space-5);
}
@media (max-width: 1080px) { .dash__row { grid-template-columns: 1fr; } }

/* Journey / Roadmap */
.journey { display: flex; flex-direction: column; gap: var(--space-3); }
.journey__step {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 14px;
  background: #fff;
  border: 1px solid var(--uw-border);
  border-radius: var(--r-md);
  position: relative;
}
.journey__num {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--uw-ink-75);
  color: var(--uw-ink-600);
  display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 11px; font-weight: 600;
  flex-shrink: 0;
  border: 1px solid var(--uw-border);
}
.journey__step--done .journey__num { background: var(--uw-success-500); color: #fff; border-color: var(--uw-success-500); }
.journey__step--done .journey__num::after { content: "✓"; }
.journey__step--done .journey__num span { display: none; }
.journey__step--now .journey__num { background: var(--uw-red-500); color: #fff; border-color: var(--uw-red-500); }
.journey__title { font-size: 14px; font-weight: 600; color: var(--uw-ink-900); margin: 0 0 2px; }
.journey__sub { font-size: 12.5px; color: var(--uw-ink-500); margin: 0; }

/* ---------- 28. CODE BLOCK ---------- */
.code {
  background: var(--uw-ink-900); color: #d4d4dc;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--r-md);
  font-family: var(--font-mono); font-size: 12.5px;
  line-height: 1.6;
  overflow-x: auto;
}
.code .k { color: #a8b1ff; }
.code .s { color: #ec9d72; }
.code .n { color: #c2c3cb; }
.code .c { color: #6d7080; font-style: italic; }

/* ---------- 29. CALLOUT ---------- */
.callout {
  border: 1.5px solid var(--uw-blue-100);
  background: var(--uw-blue-50);
  border-radius: var(--r-md);
  padding: var(--space-4) var(--space-5);
  font-size: 13.5px;
  color: var(--uw-ink-800);
}
.callout--red    { border-color: var(--uw-red-100);  background: var(--uw-red-50); }
.callout--amber  { border-color: #f3d98a;             background: var(--uw-warning-50); }
.callout--success{ border-color: #8ecfb0;             background: var(--uw-success-50); }
.callout b { color: var(--uw-ink-900); display: block; margin-bottom: 4px; font-weight: 600; }

/* ---------- 30. ALERTS / TOASTS ---------- */
.alert {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 14px 16px;
  border-radius: var(--r-md);
  border: 1px solid var(--uw-border);
  background: #fff;
  font-size: 13.5px;
}
.alert__icon {
  width: 22px; height: 22px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-weight: 700; font-size: 12px;
  flex-shrink: 0; color: #fff;
}
.alert--info .alert__icon { background: var(--uw-blue-500); }
.alert--warn .alert__icon { background: var(--uw-warning-500); }
.alert--err  .alert__icon { background: var(--uw-danger-500); }
.alert--ok   .alert__icon { background: var(--uw-success-500); }

/* ---------- 31. EMPTY STATE ---------- */
.empty {
  text-align: center; padding: var(--space-12) var(--space-6);
  border: 1px dashed var(--uw-border-strong);
  border-radius: var(--r-lg);
}
.empty__ic {
  width: 48px; height: 48px;
  margin: 0 auto var(--space-4);
  background: var(--uw-ink-75); color: var(--uw-ink-500);
  border-radius: 50%; display: grid; place-items: center;
}

/* ---------- 32. DEVICE FRAMES ---------- */
.phone {
  width: 280px;
  background: var(--uw-ink-900);
  border-radius: 32px;
  padding: 8px;
  box-shadow: var(--shadow-xl);
  margin: 0 auto;
}
.phone__screen {
  background: #fff;
  border-radius: 26px;
  overflow: hidden;
  aspect-ratio: 9/19.5;
  display: flex; flex-direction: column;
}
.phone__status {
  display: flex; justify-content: space-between;
  padding: 14px 22px 6px;
  font-size: 11px; font-weight: 600; color: var(--uw-ink-900);
}
.phone__notch {
  background: var(--uw-ink-900);
  width: 100px; height: 22px;
  border-radius: 0 0 18px 18px;
  margin: -2px auto 0;
}
.phone__body { padding: 14px; flex: 1; display: flex; flex-direction: column; gap: 12px; overflow:hidden; }

/* ---------- 33. ANIM ---------- */
@keyframes uw-shimmer {
  from { background-position: -400px 0; }
  to   { background-position: 400px 0; }
}
.skeleton {
  background: linear-gradient(90deg, var(--uw-ink-100), var(--uw-ink-75), var(--uw-ink-100));
  background-size: 400px 100%;
  animation: uw-shimmer 1.4s linear infinite;
  border-radius: 6px;
  height: 12px;
}

@keyframes uw-pulse {
  0%,100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.pulse { animation: uw-pulse 1.8s ease-in-out infinite; }

@keyframes uw-spin { to { transform: rotate(360deg); } }
.spinner {
  width: 28px; height: 28px;
  border: 2px solid var(--uw-ink-200);
  border-top-color: var(--uw-blue-500);
  border-radius: 50%;
  animation: uw-spin 0.9s linear infinite;
}

/* ---------- 34. MOTION TILES ---------- */
.motion-tile {
  background: #fff; border: 1px solid var(--uw-border);
  border-radius: var(--r-lg); padding: var(--space-5);
}
.motion-tile__name { font-family: var(--font-mono); font-size: 11px; color: var(--uw-ink-500); letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 14px; }
.motion-track { height: 6px; background: var(--uw-ink-100); border-radius: 999px; position: relative; }
.motion-ball {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 18px; height: 18px;
  background: var(--uw-blue-500);
  border-radius: 50%;
}
.motion-tile:hover .motion-ball {
  animation: uw-move 1.6s ease infinite;
}
@keyframes uw-move {
  0%   { left: 0; }
  50%  { left: calc(100% - 18px); }
  100% { left: 0; }
}

/* ---------- 35. NOTIFICATION / DROPDOWN ---------- */
.dropdown {
  width: 280px; background: #fff;
  border: 1px solid var(--uw-border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  padding: 6px;
}
.dropdown__item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: var(--r-sm);
  font-size: 13.5px; color: var(--uw-ink-800);
  cursor: pointer;
}
.dropdown__item:hover { background: var(--uw-ink-75); }
.dropdown__divider { height: 1px; background: var(--uw-border); margin: 6px 0; }
.dropdown__shortcut { margin-left: auto; font-family: var(--font-mono); font-size: 10.5px; color: var(--uw-ink-400); }

/* ---------- 36. FAQ-like Accordion ---------- */
.accordion {
  border: 1px solid var(--uw-border); border-radius: var(--r-md);
  overflow: hidden; background: #fff;
}
.accordion__item { border-bottom: 1px solid var(--uw-border); }
.accordion__item:last-child { border-bottom: none; }
.accordion__head {
  width: 100%; background: none; border: none; text-align: left;
  padding: 14px 18px;
  font-family: var(--font-sans); font-size: 14px; font-weight: 500; color: var(--uw-ink-900);
  cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
}
.accordion__head::after {
  content: "+"; color: var(--uw-ink-500); font-size: 18px; line-height: 1;
}
.accordion__body { display: none; padding: 0 18px 16px; font-size: 13.5px; color: var(--uw-ink-600); line-height: 1.55; }
.accordion__item.is-open .accordion__head::after { content: "−"; }
.accordion__item.is-open .accordion__body { display: block; }

/* ---------- 37. BACK-TO-TOP visual aid ---------- */
.token-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  font-size: 13px;
  background: #fff;
  border: 1px solid var(--uw-border);
  border-radius: var(--r-md);
  overflow: hidden;
}
.token-grid div {
  padding: 10px 16px;
  border-bottom: 1px solid var(--uw-border);
}
.token-grid div:nth-last-child(-n+2) { border-bottom: none; }
.token-grid div:nth-child(odd) {
  font-family: var(--font-mono); font-size: 12px; color: var(--uw-ink-700);
  border-right: 1px solid var(--uw-border);
}
.token-grid div:nth-child(even) { color: var(--uw-ink-700); font-family: var(--font-mono); font-size: 12px; }

/* ---------- 38. THEME TOGGLE ---------- */
.theme-toggle {
  margin-left: auto;
  width: 30px; height: 30px;
  border-radius: var(--r-sm);
  border: 1px solid var(--uw-border-strong);
  background: transparent;
  color: var(--uw-ink-500);
  display: grid; place-items: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--dur-fast), color var(--dur-fast), border-color var(--dur-fast);
}
.theme-toggle:hover { background: var(--uw-ink-75); color: var(--uw-ink-800); }
.theme-toggle svg { width: 14px; height: 14px; }
/* Specificity must beat svg.lucide (0,1,1) — use two classes (0,2,0) */
.theme-toggle .theme-toggle__moon { display: none; }
[data-theme="dark"] .theme-toggle .theme-toggle__sun  { display: none; }
[data-theme="dark"] .theme-toggle .theme-toggle__moon { display: block; }

/* ---------- 39. DARK MODE — COMPONENT OVERRIDES ---------- */

/* Selection */
[data-theme="dark"] ::selection { background: var(--uw-blue-800); color: #fff; }

/* Links */
[data-theme="dark"] a { color: var(--uw-blue-300); }
[data-theme="dark"] a:not(.btn):hover { color: var(--uw-blue-200); }

/* Sidebar & nav */
[data-theme="dark"] .sidebar { background: var(--uw-surface); }
[data-theme="dark"] .nav-link.is-active {
  background: rgba(44,51,134,0.3);
  color: var(--uw-blue-300);
}
[data-theme="dark"] .nav-link.is-active .nav-link__num { color: var(--uw-blue-300); }

/* Code inline */
[data-theme="dark"] .caption code,
[data-theme="dark"] code.inline { background: var(--uw-ink-100); color: var(--uw-ink-700); }

/* Grid demo */
[data-theme="dark"] .grid-demo { background: rgba(44,51,134,0.2); }
[data-theme="dark"] .grid-demo__col { background: rgba(44,51,134,0.45); color: var(--uw-blue-200); }

/* Canvas dot grid */
[data-theme="dark"] .demo--canvas {
  background-image: radial-gradient(circle at 1px 1px, var(--uw-ink-300) 1px, transparent 0);
  background-color: var(--uw-surface);
}

/* Code block — keep dark bg in dark mode (ink-900 flips to near-white) */
[data-theme="dark"] .code { background: #0a0c14; }

/* White-background components */
[data-theme="dark"] .topnav,
[data-theme="dark"] .appside,
[data-theme="dark"] .kpi,
[data-theme="dark"] .mentor,
[data-theme="dark"] .course,
[data-theme="dark"] .quote,
[data-theme="dark"] .table-wrap,
[data-theme="dark"] .specimen,
[data-theme="dark"] .lp,
[data-theme="dark"] .lp__feat,
[data-theme="dark"] .swatch,
[data-theme="dark"] .icon-cell,
[data-theme="dark"] .shadow-tile,
[data-theme="dark"] .motion-tile,
[data-theme="dark"] .dropdown,
[data-theme="dark"] .accordion,
[data-theme="dark"] .token-grid,
[data-theme="dark"] .phone__screen,
[data-theme="dark"] .dash__side,
[data-theme="dark"] .journey__step,
[data-theme="dark"] .alert { background: var(--uw-surface); }

/* Progress ring cutout */
[data-theme="dark"] .progress-ring::after { background: var(--uw-surface); }

/* Online dot border */
[data-theme="dark"] .avatar__online { border-color: var(--uw-surface); }

/* Logo frames: dark frame stays dark in both modes */
[data-theme="dark"] .logo-frame--dark { background: #0f1233; border-color: #181c4d; }

/* Phone bezel: keep dark in both modes (ink-900 flips to near-white in dark) */
[data-theme="dark"] .phone,
[data-theme="dark"] .phone__notch { background: #0a0c14; }
[data-theme="dark"] .phone__status { color: var(--uw-ink-200); }

/* Buttons */
[data-theme="dark"] .btn--outline {
  background: var(--uw-surface);
  color: var(--uw-ink-800);
  border-color: var(--uw-border-strong);
}
[data-theme="dark"] .btn--outline:hover { background: var(--uw-ink-100); border-color: var(--uw-ink-400); }
[data-theme="dark"] .btn--ghost:hover { background: var(--uw-ink-100); }

/* Pagination */
[data-theme="dark"] .pagination__btn {
  background: var(--uw-surface);
  border-color: var(--uw-border-strong);
  color: var(--uw-ink-700);
}
[data-theme="dark"] .pagination__btn:hover:not(.is-active) { background: var(--uw-ink-100); }

/* Form inputs */
[data-theme="dark"] .input,
[data-theme="dark"] .textarea,
[data-theme="dark"] .select {
  background: var(--uw-surface);
  border-color: var(--uw-border-strong);
  color: var(--uw-ink-900);
}
[data-theme="dark"] .input:focus,
[data-theme="dark"] .textarea:focus,
[data-theme="dark"] .select:focus { box-shadow: 0 0 0 3px rgba(44,51,134,0.35); }
[data-theme="dark"] .checkbox input,
[data-theme="dark"] .radio input { background: var(--uw-surface); border-color: var(--uw-border-strong); }

/* App sidebar active items */
[data-theme="dark"] .appside__item.is-active { background: rgba(44,51,134,0.3); color: var(--uw-blue-300); }
[data-theme="dark"] .appside__item.is-active .appside__dot { background: var(--uw-blue-600); }
[data-theme="dark"] .appside__item:hover { background: var(--uw-ink-100); }

/* Badges */
[data-theme="dark"] .badge--blue    { background: rgba(44,51,134,0.3);  color: var(--uw-blue-300); }
[data-theme="dark"] .badge--red     { background: rgba(227,33,36,0.2);  color: var(--uw-red-300); }
[data-theme="dark"] .badge--green   { background: rgba(47,138,90,0.2);  color: var(--uw-success-300); }
[data-theme="dark"] .badge--amber   { background: rgba(201,138,20,0.2); color: #f0be55; }
[data-theme="dark"] .badge--neutral { background: var(--uw-ink-200);    color: var(--uw-ink-700); }

/* Contrast demo card — pinned to light-mode ink-900 so the ratio stays accurate */
.card--contrast-ink {
  background: #14151c;
  border-color: #14151c;
}

/* Flashcard back face — stays dark in both modes */
.card--flashback {
  background: var(--uw-ink-900);
  border-color: var(--uw-ink-900);
  color: #fff;
}
[data-theme="dark"] .card--flashback {
  background: #0d0f17;
  border-color: #1a1c28;
}

/* QBank / card correct answer highlight */
.card--answer-correct {
  border-color: var(--uw-red-500);
  background: var(--uw-red-50);
}
.card--answer-correct__text { color: var(--uw-ink-900); }
[data-theme="dark"] .card--answer-correct {
  background: rgba(227,33,36,0.14);
  border-color: rgba(227,33,36,0.4);
}
[data-theme="dark"] .card--answer-correct__text { color: var(--uw-ink-900); }

/* QBank correct answer highlight */
.qbank-answer--correct {
  border: 1.5px solid var(--uw-red-500);
  background: var(--uw-red-50);
}
.qbank-answer--correct .qbank-answer__letter { color: var(--uw-red-800); }
[data-theme="dark"] .qbank-answer--correct {
  background: rgba(227,33,36,0.14);
  border-color: rgba(227,33,36,0.35);
}
[data-theme="dark"] .qbank-answer--correct .qbank-answer__letter { color: var(--uw-red-300); }

/* Alert demo card */
.card--alert-demo {
  border-color: var(--uw-red-200);
  background: var(--uw-red-50);
}
[data-theme="dark"] .card--alert-demo {
  background: rgba(227,33,36,0.14);
  border-color: rgba(227,33,36,0.35);
}
[data-theme="dark"] .card--alert-demo .card__title { color: var(--uw-ink-900); }
[data-theme="dark"] .card--alert-demo .card__body  { color: var(--uw-ink-600); }

/* Callouts */
[data-theme="dark"] .callout          { background: rgba(44,51,134,0.18);  border-color: rgba(44,51,134,0.35); }
[data-theme="dark"] .callout--red     { background: rgba(227,33,36,0.14);  border-color: rgba(227,33,36,0.3); }
[data-theme="dark"] .callout--amber   { background: rgba(201,138,20,0.14); border-color: rgba(201,138,20,0.3); }
[data-theme="dark"] .callout--success { background: rgba(47,138,90,0.14);  border-color: rgba(111,224,163,0.25); }

/* Landing page mock hero */
[data-theme="dark"] .lp__hero {
  background: radial-gradient(800px 400px at 90% 0%, var(--uw-blue-900), transparent), var(--uw-surface);
}
[data-theme="dark"] .lp__feat-ic { background: rgba(44,51,134,0.3); }

/* ---------- NAV DROPDOWN (shared across all pages) ---------- */
.msp-nav__item {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.msp-nav__item > a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  color: var(--uw-ink-600);
  padding: 8px 12px;
  border-radius: var(--r-sm);
  text-decoration: none;
  transition: color 0.12s ease, background 0.12s ease;
}
.msp-nav__item > a:hover { color: var(--uw-ink-900); background: var(--uw-ink-75); }
.msp-nav__dd-caret {
  color: var(--uw-ink-400);
  transition: transform 0.15s ease;
  flex-shrink: 0;
}
.msp-nav__item:hover .msp-nav__dd-caret,
.msp-nav__item:focus-within .msp-nav__dd-caret { transform: rotate(180deg); }
.msp-nav__dropdown::before {
  content: '';
  position: absolute;
  top: -10px;
  left: 0;
  right: 0;
  height: 10px;
}
.msp-nav__dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 220px;
  background: var(--uw-bg);
  border: 1px solid var(--uw-border);
  border-radius: var(--r-lg);
  box-shadow: 0 4px 16px rgba(0,0,0,0.08), 0 1px 4px rgba(0,0,0,0.04);
  padding: 6px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 0.15s ease, transform 0.15s ease;
  z-index: 200;
}
.msp-nav__item:hover .msp-nav__dropdown,
.msp-nav__item:focus-within .msp-nav__dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.msp-nav__dd-link {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 12px;
  border-radius: var(--r-sm);
  text-decoration: none;
  transition: background 0.1s ease;
}
.msp-nav__dd-link:hover { background: var(--uw-ink-75); }
.msp-nav__dd-name {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--uw-ink-900);
  line-height: 1.2;
}
.msp-nav__dd-meta {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--uw-ink-500);
}