/* ============================================================
   REMOTE AI JOBS DASHBOARD — Architecture-Inspired Design
   Warm cream + ink charcoal + teal accent + blueprint lines
   ============================================================ */

/* ---- Design Tokens ---- */
:root {
  /* Type scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  /* Spacing */
  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem;
  --space-4: 1rem; --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem; --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem; --space-20: 5rem; --space-24: 6rem;

  /* Architecture palette — warm cream + deep ink + teal */
  --color-bg:              #f5f3ee;
  --color-surface:         #f8f7f3;
  --color-surface-2:       #faf9f7;
  --color-surface-offset:  #eeeae3;
  --color-surface-dynamic: #e7e3da;
  --color-divider:         #d9d5cc;
  --color-border:          #ccc8be;

  --color-text:         #1e1c17;
  --color-text-muted:   #6b6860;
  --color-text-faint:   #b0ada5;
  --color-text-inverse: #f5f3ee;

  /* Teal — blueprint / architectural accent */
  --color-primary:           #01696f;
  --color-primary-hover:     #0c4e54;
  --color-primary-active:    #0f3638;
  --color-primary-highlight: #d0dedd;

  /* Blueprint blue accent (secondary) */
  --color-blueprint:         #3d6b8a;
  --color-blueprint-faint:   rgba(61,107,138,0.08);

  /* Semantic */
  --color-success:           #3d7a26;
  --color-success-highlight: #d5e4cc;
  --color-warning:           #8a4010;
  --color-warning-highlight: #e8d5c4;
  --color-error:             #a12c7b;
  --color-error-highlight:   #e8d4e0;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(30,28,23,0.06);
  --shadow-md: 0 4px 16px rgba(30,28,23,0.09);
  --shadow-lg: 0 12px 36px rgba(30,28,23,0.13);

  /* Radii */
  --radius-sm: 3px; /* sharper — architectural feel */
  --radius-md: 5px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-full: 9999px;

  /* Fonts */
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'Work Sans', 'Helvetica Neue', sans-serif;

  /* Transitions */
  --t: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --content-default: 1100px;
  --content-narrow: 680px;

  /* Nav */
  --nav-h: 64px;
}

/* DARK MODE */
[data-theme="dark"] {
  --color-bg:              #16150f;
  --color-surface:         #1b1a14;
  --color-surface-2:       #1f1e18;
  --color-surface-offset:  #1a1913;
  --color-surface-dynamic: #26251e;
  --color-divider:         #2c2b23;
  --color-border:          #38362d;
  --color-text:            #e0ddd6;
  --color-text-muted:      #7f7d74;
  --color-text-faint:      #504e47;
  --color-text-inverse:    #1e1c17;
  --color-primary:         #4f98a3;
  --color-primary-hover:   #3a7f8a;
  --color-primary-active:  #2a626b;
  --color-primary-highlight: #1e3535;
  --color-blueprint:       #6b9db8;
  --color-blueprint-faint: rgba(107,157,184,0.08);
  --color-success:         #65aa42;
  --color-success-highlight: #1c3518;
  --color-warning:         #c07040;
  --color-warning-highlight: #3a2a18;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.25);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
  --shadow-lg: 0 12px 36px rgba(0,0,0,0.45);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #16150f; --color-surface: #1b1a14; --color-surface-2: #1f1e18;
    --color-surface-offset: #1a1913; --color-surface-dynamic: #26251e;
    --color-divider: #2c2b23; --color-border: #38362d;
    --color-text: #e0ddd6; --color-text-muted: #7f7d74; --color-text-faint: #504e47;
    --color-text-inverse: #1e1c17;
    --color-primary: #4f98a3; --color-primary-hover: #3a7f8a; --color-primary-active: #2a626b;
    --color-primary-highlight: #1e3535;
    --color-blueprint: #6b9db8; --color-blueprint-faint: rgba(107,157,184,0.08);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.25); --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
  }
}

/* ---- Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 24px);
}
body {
  min-height: 100dvh;
  line-height: 1.65;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
}
img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
ul[role="list"], ol[role="list"] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }
h1,h2,h3,h4,h5,h6 { text-wrap: balance; line-height: 1.15; font-family: var(--font-display); }
p, li, figcaption { text-wrap: pretty; }
button { cursor: pointer; background: none; border: none; }
a, button, [role="button"] { transition: color var(--t), background var(--t), border-color var(--t), box-shadow var(--t), opacity var(--t); }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ---- Layout ---- */
.container {
  max-width: var(--content-default);
  margin: 0 auto;
  padding: 0 clamp(var(--space-6), 5vw, var(--space-12));
}

/* ---- NAV ---- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  background: color-mix(in oklch, var(--color-bg) 92%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
}
.nav-inner {
  display: flex; align-items: center; gap: var(--space-6);
  height: 100%; max-width: var(--content-default);
  margin: 0 auto; padding: 0 clamp(var(--space-6), 5vw, var(--space-12));
}
.nav-logo {
  display: flex; align-items: center; gap: var(--space-3);
  text-decoration: none; color: var(--color-text);
  flex-shrink: 0;
}
.nav-brand { font-family: var(--font-body); font-size: var(--text-sm); font-weight: 600; letter-spacing: -0.01em; }
.nav-brand em { font-style: italic; font-family: var(--font-display); font-weight: 400; }
.nav-links { display: flex; align-items: center; gap: var(--space-6); list-style: none; margin-left: auto; }
.nav-links a { text-decoration: none; font-size: var(--text-sm); color: var(--color-text-muted); font-weight: 500; }
.nav-links a:hover { color: var(--color-primary); }
.nav-actions { display: flex; align-items: center; gap: var(--space-3); margin-left: var(--space-4); }
.lang-toggle {
  padding: var(--space-1) var(--space-3); border-radius: var(--radius-sm);
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.05em;
  border: 1.5px solid var(--color-border); color: var(--color-text-muted);
}
.lang-toggle:hover { border-color: var(--color-primary); color: var(--color-primary); }
.theme-toggle {
  width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm); color: var(--color-text-muted);
}
.theme-toggle:hover { color: var(--color-primary); background: var(--color-surface-offset); }
.nav-menu-btn { display: none; flex-direction: column; gap: 5px; padding: var(--space-2); }
.nav-menu-btn span { display: block; width: 22px; height: 2px; background: var(--color-text); border-radius: 2px; transition: var(--t); }
.nav-mobile { display: none; position: absolute; top: var(--nav-h); left: 0; right: 0; background: var(--color-surface); border-bottom: 1px solid var(--color-divider); padding: var(--space-4); flex-direction: column; gap: var(--space-4); }
.nav-mobile a { text-decoration: none; font-size: var(--text-base); font-weight: 500; color: var(--color-text); padding: var(--space-2) 0; border-bottom: 1px solid var(--color-divider); }
.nav-mobile.open { display: flex; }

/* ---- HERO ---- */
.hero {
  position: relative; overflow: hidden;
  padding: calc(var(--nav-h) + clamp(var(--space-16), 8vw, var(--space-24))) 0 clamp(var(--space-16), 8vw, var(--space-24));
  background: var(--color-bg);
}
.hero-grid-bg {
  position: absolute; inset: 0; pointer-events: none;
}
.grid-lines {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--color-divider) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-divider) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.35;
}
.hero-content { position: relative; z-index: 2; max-width: 760px; }
.hero-kicker {
  display: flex; align-items: center; gap: var(--space-2);
  margin-bottom: var(--space-6);
}
.kicker-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--color-primary); flex-shrink: 0;
}
.hero-kicker span { font-size: var(--text-sm); font-weight: 500; color: var(--color-text-muted); letter-spacing: 0.04em; text-transform: uppercase; }
.hero-title {
  font-family: var(--font-display); font-size: var(--text-3xl);
  line-height: 1.05; color: var(--color-text);
  margin-bottom: var(--space-6);
}
.hero-title em { font-style: italic; color: var(--color-primary); }
.hero-subtitle {
  font-size: var(--text-lg); color: var(--color-text-muted);
  max-width: 56ch; margin-bottom: var(--space-10); line-height: 1.6;
}
.hero-stats {
  display: flex; align-items: center;
  margin-bottom: var(--space-10); flex-wrap: nowrap; gap: 0;
}
.stat-card { padding: var(--space-4) var(--space-6); }
.stat-card:first-child { padding-left: 0; }
.stat-divider { width: 1px; height: 40px; background: var(--color-border); }
.stat-num { display: block; font-size: var(--text-xl); font-weight: 700; color: var(--color-text); line-height: 1; margin-bottom: var(--space-1); }
.stat-label { display: block; font-size: var(--text-xs); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.hero-cta-row { display: flex; flex-wrap: wrap; gap: var(--space-4); align-items: center; }
.btn-primary {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-8); border-radius: var(--radius-sm);
  background: var(--color-primary); color: #fff;
  font-size: var(--text-sm); font-weight: 600; text-decoration: none;
  letter-spacing: 0.01em;
}
.btn-primary:hover { background: var(--color-primary-hover); color: #fff; }
.btn-ghost {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-6); border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border); color: var(--color-text-muted);
  font-size: var(--text-sm); font-weight: 500; text-decoration: none;
}
.btn-ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }
.hero-blueprint {
  position: absolute; right: clamp(-40px, 3vw, 40px); top: 50%;
  transform: translateY(-50%); color: var(--color-primary); opacity: 0.6;
  pointer-events: none;
}

/* ---- SECTION RULE ---- */
.section-rule {
  border-top: 1px solid var(--color-border);
  padding: var(--space-3) clamp(var(--space-6), 5vw, var(--space-12));
  max-width: var(--content-default); margin: 0 auto;
}
.section-rule span {
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--color-text-faint);
}

/* ---- SECTIONS ---- */
.section { padding: clamp(var(--space-16), 7vw, var(--space-24)) 0; }
.section-dark { background: var(--color-surface-offset); }
.section-alt { background: var(--color-surface); }
.section-header { margin-bottom: var(--space-12); }
.section-header h2 { font-size: var(--text-2xl); margin-bottom: var(--space-4); }
.section-lead { font-size: var(--text-lg); color: var(--color-text-muted); max-width: 60ch; }
.section-sublead { color: var(--color-text-muted); margin-bottom: var(--space-8); }

/* ---- FILTER BAR ---- */
.filter-bar { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-8); }
.filter-btn {
  padding: var(--space-2) var(--space-5); border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border); font-size: var(--text-sm); font-weight: 500;
  color: var(--color-text-muted); background: var(--color-surface);
}
.filter-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.filter-btn.active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

/* ---- PLATFORM CARDS ---- */
.platforms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}
.platform-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex; flex-direction: column; gap: var(--space-4);
  transition: box-shadow var(--t), border-color var(--t), transform var(--t);
}
.platform-card:hover { box-shadow: var(--shadow-md); border-color: var(--color-primary); transform: translateY(-2px); }
.platform-card[data-hidden="true"] { display: none; }
.card-header { display: flex; align-items: center; gap: var(--space-4); }
.platform-initial {
  width: 48px; height: 48px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: var(--text-sm); flex-shrink: 0;
}
.card-header h3 { font-size: var(--text-base); font-weight: 600; font-family: var(--font-body); margin-bottom: var(--space-1); }
.badge {
  display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: 0.04em;
  padding: 2px var(--space-2); border-radius: var(--radius-full);
}
.badge-top { background: var(--color-primary-highlight); color: var(--color-primary); }
.badge-usa { background: #dde8f4; color: #1a5a99; }
.badge-cr { background: #d5e9d5; color: #1a6b1a; }
.badge-both { background: var(--color-surface-offset); color: var(--color-text-muted); border: 1px solid var(--color-border); }
.pay-range { font-size: var(--text-xl); font-weight: 700; color: var(--color-text); line-height: 1; }
.pay-range span { font-size: var(--text-sm); font-weight: 400; color: var(--color-text-muted); }
.platform-card p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; flex: 1; }
.platform-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.tag { font-size: 11px; padding: 3px var(--space-3); border-radius: var(--radius-full); background: var(--color-surface-offset); color: var(--color-text-muted); font-weight: 500; }
.platform-sentiment { display: flex; align-items: flex-start; gap: var(--space-2); font-size: var(--text-xs); padding: var(--space-3) var(--space-3); border-radius: var(--radius-md); }
.platform-sentiment.positive { background: var(--color-success-highlight); color: var(--color-success); }
.platform-sentiment.mixed { background: var(--color-warning-highlight); color: var(--color-warning); }
.platform-sentiment.negative { background: var(--color-error-highlight); color: var(--color-error); }
.sentiment-icon { font-size: var(--text-base); flex-shrink: 0; }
.card-link { align-self: flex-start; font-size: var(--text-sm); font-weight: 600; color: var(--color-primary); text-decoration: none; padding-top: var(--space-1); }
.card-link:hover { color: var(--color-primary-hover); }

/* ---- CHARTS ---- */
.chart-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}
.chart-card h3 { font-size: var(--text-lg); margin-bottom: var(--space-6); font-family: var(--font-body); font-weight: 600; }
.chart-wrap { position: relative; }
.market-charts-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-6); margin-top: var(--space-8); }
.chart-card-half { /* inherit */ }

/* ---- MARKET STATS ---- */
.market-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.market-stat-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
}
.market-stat-card.market-stat-featured {
  background: var(--color-primary-highlight);
  border-color: var(--color-primary);
}
.market-stat-icon { font-size: 1.5rem; margin-bottom: var(--space-2); }
.market-stat-num { font-size: var(--text-xl); font-weight: 700; color: var(--color-text); line-height: 1.1; margin-bottom: var(--space-2); }
.market-stat-label { font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-2); }
.market-stat-detail { font-size: var(--text-sm); font-weight: 600; color: var(--color-primary); margin-bottom: var(--space-2); }
.market-stat-source a { font-size: var(--text-xs); color: var(--color-text-faint); text-decoration: underline; }
.market-stat-source a:hover { color: var(--color-primary); }
.market-note {
  display: flex; align-items: flex-start; gap: var(--space-4);
  background: color-mix(in oklch, var(--color-primary) 10%, var(--color-surface-2));
  border: 1px solid var(--color-primary-highlight);
  border-radius: var(--radius-lg); padding: var(--space-6); margin-top: var(--space-8);
}
.market-note-icon { font-size: 1.5rem; flex-shrink: 0; }
.market-note p { font-size: var(--text-base); color: var(--color-text); max-width: 72ch; }

/* ---- AI AREAS ---- */
.ai-areas-list { display: flex; flex-direction: column; gap: 0; }
.ai-area-item {
  display: grid; grid-template-columns: 64px 1fr;
  gap: var(--space-8); padding: var(--space-10) 0;
  border-bottom: 1px solid var(--color-divider);
}
.ai-area-item:first-child { border-top: 1px solid var(--color-divider); }
.area-number {
  font-size: var(--text-2xl); font-family: var(--font-display); font-style: italic;
  color: var(--color-text-faint); line-height: 1; padding-top: var(--space-2);
}
.area-content { display: flex; flex-direction: column; gap: var(--space-5); }
.area-header { display: flex; flex-wrap: wrap; align-items: flex-start; gap: var(--space-4); }
.area-header h3 { font-size: var(--text-lg); flex: 1; min-width: 200px; }
.area-badges { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.area-badge {
  font-size: 11px; font-weight: 600; padding: 3px var(--space-3);
  border-radius: var(--radius-full); letter-spacing: 0.04em;
}
.area-badge.hottest { background: #fde8cc; color: #8a3d00; }
.area-badge.accessible { background: #d4f0d4; color: #1a5c1a; }
.area-badge.visual { background: #dce8f5; color: #1a4a7a; }
.area-badge.ethics { background: #e8d4f5; color: #5a1a8a; }
.area-badge.bilingual { background: var(--color-primary-highlight); color: var(--color-primary); }
.area-badge.pay { background: var(--color-surface-offset); color: var(--color-text); font-weight: 700; }
.area-content > p { font-size: var(--text-base); color: var(--color-text-muted); max-width: 68ch; }
.skill-path {
  background: var(--color-surface-offset);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
}
.skill-path-label { font-size: var(--text-xs); font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-text-faint); margin-bottom: var(--space-3); }
.skill-steps { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); }
.skill-step { font-size: var(--text-sm); color: var(--color-text); }
.skill-arrow { color: var(--color-text-faint); font-weight: 300; }
.architecture-note {
  font-size: var(--text-sm); color: var(--color-primary);
  border-left: 2.5px solid var(--color-primary);
  padding-left: var(--space-4); font-style: italic;
}

/* ---- PREP TABS ---- */
.prep-tabs { display: flex; flex-wrap: wrap; gap: var(--space-2); border-bottom: 1px solid var(--color-border); margin-bottom: var(--space-8); }
.prep-tab {
  padding: var(--space-3) var(--space-6); font-size: var(--text-sm); font-weight: 500;
  color: var(--color-text-muted); border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.prep-tab.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }
.prep-tab:hover { color: var(--color-text); }
.prep-panel { display: none; }
.prep-panel.active { display: block; }
.prep-checklist h3, .resume-template h3, .prep-panel > h3 { font-size: var(--text-lg); margin-bottom: var(--space-6); font-family: var(--font-body); font-weight: 600; }
.checklist-items { display: flex; flex-direction: column; gap: var(--space-3); }
.checklist-item {
  display: flex; align-items: flex-start; gap: var(--space-4);
  padding: var(--space-4); border-radius: var(--radius-md);
  border: 1px solid var(--color-border); background: var(--color-surface-2);
  cursor: pointer; transition: border-color var(--t), background var(--t);
}
.checklist-item:hover { border-color: var(--color-primary); }
.checklist-item input[type="checkbox"] { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; accent-color: var(--color-primary); cursor: pointer; }
.checklist-item span { font-size: var(--text-base); color: var(--color-text); line-height: 1.5; }
.checklist-item:has(input:checked) { background: var(--color-primary-highlight); border-color: var(--color-primary); }
.checklist-item:has(input:checked) span { text-decoration: line-through; color: var(--color-text-muted); }

/* Resume card */
.resume-card {
  border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  overflow: hidden; background: var(--color-surface-2);
}
.resume-section { padding: var(--space-5) var(--space-6); border-bottom: 1px solid var(--color-divider); }
.resume-section:last-child { border-bottom: none; }
.resume-label { font-size: var(--text-xs); font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-text-faint); margin-bottom: var(--space-2); }
.resume-content { font-size: var(--text-sm); color: var(--color-text); line-height: 1.7; }
.resume-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.resume-tags span { font-size: 11px; padding: 3px var(--space-3); border-radius: var(--radius-full); background: var(--color-primary-highlight); color: var(--color-primary); font-weight: 500; }

/* Courses */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
  gap: var(--space-4);
}
.course-card {
  display: flex; flex-direction: column; gap: var(--space-3);
  padding: var(--space-6); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); background: var(--color-surface-2);
  text-decoration: none; color: var(--color-text);
  transition: box-shadow var(--t), border-color var(--t), transform var(--t);
}
.course-card:hover { box-shadow: var(--shadow-md); border-color: var(--color-primary); transform: translateY(-2px); }
.course-badge { align-self: flex-start; font-size: 11px; font-weight: 600; padding: 2px var(--space-3); border-radius: var(--radius-full); background: var(--color-primary-highlight); color: var(--color-primary); }
.course-title { font-size: var(--text-base); font-weight: 600; line-height: 1.3; color: var(--color-text); }
.course-instructor { font-size: var(--text-xs); color: var(--color-text-muted); }
.course-meta { display: flex; gap: var(--space-3); }
.course-meta span { font-size: 11px; padding: 2px var(--space-3); background: var(--color-surface-offset); border-radius: var(--radius-full); color: var(--color-text-muted); font-weight: 500; }
.course-why { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.55; }

/* Projects */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
  gap: var(--space-5);
}
.project-card {
  padding: var(--space-6); border-radius: var(--radius-lg);
  border: 1px solid var(--color-border); background: var(--color-surface-2);
  display: flex; flex-direction: column; gap: var(--space-3);
}
.project-card.beginner { border-top: 3px solid var(--color-success); }
.project-card.intermediate { border-top: 3px solid var(--color-blueprint); }
.project-card.advanced { border-top: 3px solid var(--color-primary); }
.project-level { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; }
.project-card.beginner .project-level { color: var(--color-success); }
.project-card.intermediate .project-level { color: var(--color-blueprint); }
.project-card.advanced .project-level { color: var(--color-primary); }
.project-card h4 { font-size: var(--text-base); font-weight: 600; font-family: var(--font-body); }
.project-card p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; flex: 1; }
.project-resume {
  font-size: var(--text-xs); color: var(--color-text-muted);
  background: var(--color-surface-offset);
  border-radius: var(--radius-md); padding: var(--space-3);
  font-style: italic; line-height: 1.55;
}

/* ---- TODO / ROADMAP ---- */
.todo-progress {
  display: flex; align-items: center; gap: var(--space-4);
  margin-bottom: var(--space-10);
}
.progress-bar-wrap { flex: 1; height: 6px; background: var(--color-surface-offset); border-radius: var(--radius-full); overflow: hidden; }
.progress-bar { height: 100%; background: var(--color-primary); border-radius: var(--radius-full); width: 0%; transition: width 0.5s ease; }
.progress-label { font-size: var(--text-sm); color: var(--color-text-muted); white-space: nowrap; font-weight: 500; }
.todo-timeline { display: flex; flex-direction: column; gap: var(--space-6); }
.todo-phase {
  border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  background: var(--color-surface-2); overflow: hidden;
}
.phase-header {
  display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-divider);
  background: var(--color-surface-offset);
}
.phase-badge {
  display: inline-block; font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.06em; padding: 3px var(--space-4); border-radius: var(--radius-full);
  background: var(--color-primary); color: #fff;
}
.phase-badge.month { background: var(--color-text); }
.phase-header h3 { font-size: var(--text-base); font-weight: 600; font-family: var(--font-body); }
.phase-est { font-size: var(--text-xs); color: var(--color-text-muted); margin-left: auto; }
.phase-tasks { padding: var(--space-4) var(--space-6); display: flex; flex-direction: column; gap: var(--space-2); }
.todo-item {
  display: flex; align-items: flex-start; gap: var(--space-4);
  padding: var(--space-4); border-radius: var(--radius-md);
  border: 1px solid transparent; cursor: pointer;
  transition: background var(--t), border-color var(--t);
}
.todo-item:hover { background: var(--color-surface-offset); }
.todo-check { width: 18px; height: 18px; flex-shrink: 0; margin-top: 3px; accent-color: var(--color-primary); cursor: pointer; }
.todo-content { flex: 1; display: flex; flex-direction: column; gap: var(--space-1); }
.todo-title { font-size: var(--text-base); font-weight: 500; color: var(--color-text); line-height: 1.45; }
.todo-detail { font-size: var(--text-sm); color: var(--color-text-muted); }
.todo-due { font-size: var(--text-xs); font-weight: 600; color: var(--color-text-faint); white-space: nowrap; padding-top: 4px; }
.todo-item:has(.todo-check:checked) { background: var(--color-primary-highlight); border-color: var(--color-primary); }
.todo-item:has(.todo-check:checked) .todo-title { text-decoration: line-through; color: var(--color-text-muted); }
.todo-item:has(.todo-check:checked) .todo-detail { opacity: 0.65; }

/* ---- FOOTER ---- */
.footer {
  border-top: 1px solid var(--color-divider);
  padding: clamp(var(--space-10), 4vw, var(--space-16)) 0;
  background: var(--color-surface-offset);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-10); align-items: start;
}
.footer-brand { display: flex; align-items: center; gap: var(--space-4); color: var(--color-text); }
.footer-title { font-weight: 600; font-size: var(--text-sm); }
.footer-subtitle { font-size: var(--text-xs); color: var(--color-text-muted); }
.footer-links { display: flex; flex-direction: column; gap: var(--space-2); align-items: center; }
.footer-links a { font-size: var(--text-sm); color: var(--color-text-muted); text-decoration: none; }
.footer-links a:hover { color: var(--color-primary); }
.footer-credit { display: flex; flex-direction: column; gap: var(--space-2); text-align: right; }
.footer-credit a { font-size: var(--text-xs); color: var(--color-text-faint); text-decoration: none; }
.footer-credit a:hover { color: var(--color-primary); }
.footer-note { font-size: var(--text-xs); color: var(--color-text-faint); line-height: 1.5; }

/* ---- BUSINESS SETUP CR ---- */
.section-cr { background: var(--color-surface); }
.nav-link-cr { color: var(--color-primary) !important; font-weight: 600 !important; }
.cr-flag-header { display: flex; align-items: flex-start; gap: var(--space-5); }
.cr-flag { font-size: 2.5rem; line-height: 1; flex-shrink: 0; margin-top: var(--space-2); }

.cr-choice-banner { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-6); margin-bottom: var(--space-12); }
.cr-choice-card {
  border: 1.5px solid var(--color-border); border-radius: var(--radius-lg);
  padding: var(--space-8); display: flex; flex-direction: column; gap: var(--space-5);
  background: var(--color-surface-2);
}
.cr-choice-card.cr-choice-recommended { border-color: var(--color-primary); background: color-mix(in oklch, var(--color-primary) 5%, var(--color-surface-2)); }
.cr-choice-badge {
  align-self: flex-start; font-size: 11px; font-weight: 700; letter-spacing: 0.05em;
  padding: 3px var(--space-3); border-radius: var(--radius-full);
  background: var(--color-primary); color: #fff;
}
.cr-choice-badge.cr-badge-alt { background: var(--color-surface-offset); color: var(--color-text-muted); }
.cr-choice-card h3 { font-size: var(--text-base); font-weight: 600; font-family: var(--font-body); }
.cr-choice-card > p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.65; }
.cr-choice-list { list-style: none; display: flex; flex-direction: column; gap: var(--space-2); padding: 0; flex: 1; }
.cr-choice-list li { font-size: var(--text-sm); color: var(--color-text); padding-left: var(--space-5); position: relative; }
.cr-choice-list li::before { content: '✓'; position: absolute; left: 0; color: var(--color-primary); font-weight: 700; }
.cr-choice-cost { font-size: var(--text-sm); font-weight: 600; color: var(--color-text-muted); border-top: 1px solid var(--color-divider); padding-top: var(--space-4); }

.cr-section-block { margin-bottom: var(--space-12); }
.cr-block-title { font-size: var(--text-lg); font-weight: 600; font-family: var(--font-body); margin-bottom: var(--space-3); }
.cr-block-lead { font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-8); }

.cr-steps { display: flex; flex-direction: column; gap: 0; }
.cr-step {
  display: grid; grid-template-columns: 52px 1fr;
  gap: var(--space-6); padding: var(--space-8) 0;
  border-bottom: 1px solid var(--color-divider);
}
.cr-step:first-child { border-top: 1px solid var(--color-divider); }
.cr-step-num { font-size: var(--text-xl); font-family: var(--font-display); font-style: italic; color: var(--color-text-faint); line-height: 1; padding-top: var(--space-2); }
.cr-step-body { display: flex; flex-direction: column; gap: var(--space-4); }
.cr-step-header { display: flex; flex-wrap: wrap; align-items: flex-start; gap: var(--space-3); }
.cr-step-header h4 { font-size: var(--text-base); font-weight: 600; font-family: var(--font-body); flex: 1; min-width: 200px; }
.cr-step-time { font-size: var(--text-xs); color: var(--color-text-faint); font-weight: 500; white-space: nowrap; padding-top: 3px; }
.cr-step-body > p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.65; max-width: 70ch; }
.cr-step-docs { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); }
.cr-doc-label { font-size: var(--text-xs); font-weight: 600; color: var(--color-text-faint); text-transform: uppercase; letter-spacing: 0.07em; }
.cr-doc { font-size: 11px; padding: 3px var(--space-3); background: var(--color-surface-offset); border-radius: var(--radius-full); color: var(--color-text-muted); font-weight: 500; }
.cr-doc.cr-doc-highlight { background: var(--color-primary-highlight); color: var(--color-primary); }
.cr-step-link { align-self: flex-start; font-size: var(--text-sm); font-weight: 600; color: var(--color-primary); text-decoration: none; }
.cr-step-link:hover { color: var(--color-primary-hover); }
.cr-step-note { font-size: var(--text-sm); color: var(--color-primary); background: var(--color-primary-highlight); border-radius: var(--radius-md); padding: var(--space-3) var(--space-4); font-weight: 500; }

.cr-tax-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(260px, 100%), 1fr)); gap: var(--space-5); }
.cr-tax-card {
  padding: var(--space-6); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); background: var(--color-surface-2);
  display: flex; flex-direction: column; gap: var(--space-3);
}
.cr-tax-card.cr-tax-primary { border-color: var(--color-primary); border-left: 4px solid var(--color-primary); }
.cr-tax-name { font-size: var(--text-sm); font-weight: 600; color: var(--color-text); }
.cr-tax-rate { font-size: var(--text-2xl); font-weight: 700; color: var(--color-text); line-height: 1; }
.cr-tax-card.cr-tax-primary .cr-tax-rate { color: var(--color-primary); }
.cr-tax-detail { font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.65; flex: 1; }
.cr-tax-due { font-size: var(--text-xs); font-weight: 600; color: var(--color-text-faint); border-top: 1px solid var(--color-divider); padding-top: var(--space-3); }

.cr-calendar { display: flex; flex-direction: column; gap: 0; }
.cr-cal-item {
  display: grid; grid-template-columns: 80px 1fr;
  gap: var(--space-6); padding: var(--space-5) 0;
  border-bottom: 1px solid var(--color-divider); align-items: start;
}
.cr-cal-item:first-child { border-top: 1px solid var(--color-divider); }
.cr-cal-month {
  font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.1em;
  color: var(--color-text-faint); text-transform: uppercase; padding-top: 3px;
}
.cr-cal-item.cr-cal-important .cr-cal-month { color: var(--color-primary); }
.cr-cal-item.cr-cal-recurring .cr-cal-month { color: var(--color-blueprint); }
.cr-cal-title { font-size: var(--text-sm); font-weight: 600; color: var(--color-text); margin-bottom: var(--space-1); }
.cr-cal-detail { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; }

.cr-action-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.cr-action-phase {
  padding: var(--space-6); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); background: var(--color-surface-2);
}
.cr-action-phase-label {
  font-size: var(--text-xs); font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.07em; color: var(--color-primary); margin-bottom: var(--space-4);
  padding-bottom: var(--space-3); border-bottom: 1px solid var(--color-divider);
}
.cr-action-list { list-style: none; padding: 0; display: flex; flex-direction: column; gap: var(--space-3); }
.cr-action-list li { display: flex; align-items: flex-start; gap: var(--space-3); font-size: var(--text-sm); }
.cr-check { width: 16px; height: 16px; flex-shrink: 0; margin-top: 3px; accent-color: var(--color-primary); cursor: pointer; }
.cr-action-list label { color: var(--color-text); cursor: pointer; line-height: 1.55; }
.cr-action-list li:has(.cr-check:checked) label { text-decoration: line-through; color: var(--color-text-muted); }

.cr-tip-box {
  display: flex; align-items: flex-start; gap: var(--space-5);
  background: color-mix(in oklch, var(--color-primary) 8%, var(--color-surface-2));
  border: 1.5px solid var(--color-primary-highlight);
  border-radius: var(--radius-lg); padding: var(--space-8); margin-top: var(--space-4);
}
.cr-tip-icon { font-size: 1.75rem; flex-shrink: 0; }
.cr-tip-title { font-size: var(--text-base); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-3); }
.cr-tip-box p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.7; max-width: 72ch; }
.cr-source-link { display: inline-block; margin-top: var(--space-3); font-size: var(--text-sm); font-weight: 600; color: var(--color-primary); text-decoration: none; }
.cr-source-link:hover { color: var(--color-primary-hover); }

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-menu-btn { display: flex; }
  .market-charts-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer-links { align-items: flex-start; }
  .footer-credit { text-align: left; }
  .ai-area-item { grid-template-columns: 48px 1fr; gap: var(--space-5); }
  .area-number { font-size: var(--text-xl); }
  /* CR section — tablet */
  .cr-choice-banner { grid-template-columns: 1fr; }
  .cr-action-grid { grid-template-columns: 1fr; }
  .cr-taxes-grid { grid-template-columns: 1fr 1fr; }
  .cr-calendar-row { flex-direction: column; gap: var(--space-4); }
}
@media (max-width: 600px) {
  .hero-stats { flex-wrap: wrap; gap: var(--space-4); }
  .stat-divider { display: none; }
  .stat-card { padding: 0; }
  .hero-blueprint { display: none; }
  .ai-area-item { grid-template-columns: 1fr; gap: var(--space-3); padding: var(--space-8) 0; }
  .area-number { font-size: var(--text-lg); }
  .market-stats-grid { grid-template-columns: 1fr 1fr; }
  .phase-header { flex-wrap: wrap; }
  .phase-est { width: 100%; }
  .todo-item { flex-wrap: nowrap; }
  .todo-due { display: none; }
  .prep-tabs { gap: var(--space-1); }
  .prep-tab { padding: var(--space-3) var(--space-4); font-size: var(--text-xs); }
  /* CR section — mobile */
  .cr-flag-header { flex-direction: column; gap: var(--space-3); }
  .cr-flag { font-size: 2rem; }
  .cr-step { grid-template-columns: 1fr; gap: var(--space-3); padding: var(--space-6) 0; }
  .cr-step-num { font-size: var(--text-lg); padding-top: 0; }
  .cr-taxes-grid { grid-template-columns: 1fr; }
  .cr-tip-box { flex-direction: column; gap: var(--space-3); }
  .cr-tip-icon { font-size: 1.5rem; }
}

/* ==============================
   ARCHITECTURE + AI TAB
   ============================== */

/* Tab button accent */
.arch-tab-btn { border-color: var(--color-blueprint) !important; }
.arch-tab-btn.active { background: var(--color-blueprint) !important; color: #fff !important; border-color: var(--color-blueprint) !important; }
.arch-tab-btn:hover:not(.active) { background: color-mix(in oklch, var(--color-blueprint) 10%, transparent); }

/* Intro banner */
.arch-intro-banner {
  display: flex; gap: var(--space-6); align-items: flex-start;
  background: color-mix(in oklch, var(--color-blueprint) 8%, var(--color-surface-2));
  border: 1px solid color-mix(in oklch, var(--color-blueprint) 30%, transparent);
  border-radius: var(--radius-lg); padding: var(--space-8);
  margin-bottom: var(--space-12);
}
.arch-intro-icon { font-size: 2.5rem; line-height: 1; flex-shrink: 0; }
.arch-intro-banner h3 { font-size: var(--text-xl); font-family: var(--font-display); font-style: italic; margin-bottom: var(--space-2); color: var(--color-text); }
.arch-intro-banner p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.7; max-width: 72ch; }

/* Section blocks */
.arch-section { margin-bottom: var(--space-14); }
.arch-section-title { font-size: var(--text-lg); font-weight: 700; font-family: var(--font-body); margin-bottom: var(--space-2); color: var(--color-text); }
.arch-section-lead { font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-8); line-height: 1.65; }

/* AI Tools grid (3 cols) */
.arch-tools-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.arch-tool-card {
  background: var(--color-surface-2); border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg); padding: var(--space-6);
  display: flex; flex-direction: column; gap: var(--space-3);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.arch-tool-card:hover { border-color: var(--color-blueprint); box-shadow: 0 4px 16px color-mix(in oklch, var(--color-blueprint) 12%, transparent); }
.arch-tool-hot { border-color: var(--color-blueprint); }
.arch-tool-header { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap; }
.arch-tool-name { font-weight: 700; font-size: var(--text-sm); color: var(--color-text); }
.arch-tool-badge {
  font-size: var(--text-xs); font-weight: 600; padding: 2px var(--space-3);
  border-radius: var(--radius-full); background: var(--color-blueprint); color: #fff; white-space: nowrap;
}
.arch-tool-badge-alt { background: var(--color-surface-offset); color: var(--color-text-muted); }
.arch-tool-card > p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.65; flex: 1; }
.arch-tool-meta { font-size: var(--text-xs); color: var(--color-text-faint); display: flex; gap: var(--space-2); flex-wrap: wrap; }
.arch-tool-link { font-size: var(--text-sm); font-weight: 600; color: var(--color-blueprint); text-decoration: none; align-self: flex-start; margin-top: auto; }
.arch-tool-link:hover { text-decoration: underline; }

/* Certifications grid (2 cols) */
.arch-certs-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.arch-cert-card {
  background: var(--color-surface-2); border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg); padding: var(--space-6);
  display: flex; flex-direction: column; gap: var(--space-3);
  position: relative;
}
.arch-cert-hot { border-color: var(--color-primary); }
.arch-cert-badge {
  display: inline-block; font-size: var(--text-xs); font-weight: 700;
  background: var(--color-primary); color: #fff;
  padding: 2px var(--space-3); border-radius: var(--radius-full); align-self: flex-start;
}
.arch-cert-card h4 { font-size: var(--text-base); font-weight: 700; font-family: var(--font-body); color: var(--color-text); }
.arch-cert-card p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.65; flex: 1; }
.arch-cert-meta { font-size: var(--text-xs); color: var(--color-text-faint); display: flex; gap: var(--space-2); flex-wrap: wrap; }

/* Platforms list */
.arch-platforms-grid { display: flex; flex-direction: column; gap: 0; }
.arch-platform-row {
  display: grid; grid-template-columns: 160px 1fr;
  gap: var(--space-6); padding: var(--space-6) 0;
  border-bottom: 1px solid var(--color-divider);
  align-items: start;
}
.arch-platform-row:first-child { border-top: 1px solid var(--color-divider); }
.arch-platform-name { font-weight: 700; font-size: var(--text-base); color: var(--color-text); padding-top: var(--space-1); }
.arch-platform-detail { display: flex; flex-direction: column; gap: var(--space-2); }
.arch-platform-tag {
  display: inline-block; font-size: var(--text-xs); font-weight: 600;
  background: var(--color-surface-offset); color: var(--color-text-muted);
  padding: 2px var(--space-3); border-radius: var(--radius-full); align-self: flex-start;
}
.arch-platform-detail p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.65; }

/* Network grid (2 cols) */
.arch-network-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.arch-network-card {
  background: var(--color-surface-2); border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg); padding: var(--space-7);
  display: flex; flex-direction: column; gap: var(--space-3);
}
.arch-network-primary { border-color: var(--color-primary); background: color-mix(in oklch, var(--color-primary) 4%, var(--color-surface-2)); }
.arch-network-icon { font-size: 1.75rem; line-height: 1; }
.arch-network-card h4 { font-size: var(--text-base); font-weight: 700; font-family: var(--font-body); color: var(--color-text); }
.arch-network-role { font-size: var(--text-xs); font-weight: 600; color: var(--color-text-faint); text-transform: uppercase; letter-spacing: 0.06em; }
.arch-network-list { list-style: none; padding: 0; display: flex; flex-direction: column; gap: var(--space-2); }
.arch-network-list li { font-size: var(--text-sm); color: var(--color-text-muted); padding-left: var(--space-5); position: relative; line-height: 1.6; }
.arch-network-list li::before { content: '→'; position: absolute; left: 0; color: var(--color-primary); font-weight: 700; }

/* 90-day plan grid (3 cols) */
.arch-plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.arch-plan-phase {
  background: var(--color-surface-2); border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg); padding: var(--space-6);
}
.arch-plan-phase-label {
  font-size: var(--text-xs); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--color-blueprint); margin-bottom: var(--space-4);
  border-bottom: 2px solid color-mix(in oklch, var(--color-blueprint) 30%, transparent);
  padding-bottom: var(--space-3);
}
.arch-plan-list { list-style: none; padding: 0; display: flex; flex-direction: column; gap: var(--space-3); }
.arch-plan-list li { font-size: var(--text-sm); color: var(--color-text-muted); padding-left: var(--space-5); position: relative; line-height: 1.6; }
.arch-plan-list li::before { content: '✓'; position: absolute; left: 0; color: var(--color-primary); font-weight: 700; }

/* Responsive overrides */
@media (max-width: 900px) {
  .arch-tools-grid { grid-template-columns: 1fr 1fr; }
  .arch-plan-grid { grid-template-columns: 1fr 1fr; }
  .arch-network-grid { grid-template-columns: 1fr; }
  .arch-platform-row { grid-template-columns: 130px 1fr; }
}
@media (max-width: 600px) {
  .arch-tools-grid { grid-template-columns: 1fr; }
  .arch-certs-grid { grid-template-columns: 1fr; }
  .arch-plan-grid { grid-template-columns: 1fr; }
  .arch-platform-row { grid-template-columns: 1fr; gap: var(--space-2); }
  .arch-intro-banner { flex-direction: column; gap: var(--space-4); }
}

/* ==============================
   ARCHITECTURE PLAN MATRIX
   ============================== */

/* Legend row */
.arch-matrix-legend {
  display: flex; flex-wrap: wrap; gap: var(--space-4);
  margin-bottom: var(--space-8);
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface-2);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-divider);
}
.arch-matrix-legend span { font-size: var(--text-xs); line-height: 1.5; }
.arch-legend-min { color: #d97706; font-weight: 600; }
.arch-legend-norm { color: var(--color-text-muted); font-weight: 600; }
.arch-legend-exc { color: var(--color-primary); font-weight: 600; }

/* Phase block */
.arch-phase-block { margin-bottom: var(--space-12); }

/* Phase header */
.arch-phase-header {
  display: flex; align-items: baseline; flex-wrap: wrap; gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  margin-bottom: 0;
}
.arch-phase-1 { background: color-mix(in oklch, var(--color-blueprint) 12%, var(--color-surface-2)); border: 1px solid color-mix(in oklch, var(--color-blueprint) 30%, transparent); border-bottom: none; }
.arch-phase-2 { background: color-mix(in oklch, var(--color-primary) 10%, var(--color-surface-2)); border: 1px solid color-mix(in oklch, var(--color-primary) 28%, transparent); border-bottom: none; }
.arch-phase-3 { background: color-mix(in oklch, #7c5cdc 10%, var(--color-surface-2)); border: 1px solid color-mix(in oklch, #7c5cdc 28%, transparent); border-bottom: none; }
.arch-phase-num { font-size: var(--text-xs); font-weight: 800; text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-text-faint); }
.arch-phase-name { font-size: var(--text-base); font-weight: 700; font-family: var(--font-body); color: var(--color-text); }
.arch-phase-goal { font-size: var(--text-xs); color: var(--color-text-muted); flex: 1 1 100%; padding-top: var(--space-1); }

/* Table wrapper — horizontal scroll on mobile */
.arch-matrix-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-divider);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}
.arch-phase-1 + .arch-matrix-table-wrap { border-color: color-mix(in oklch, var(--color-blueprint) 30%, transparent); }
.arch-phase-2 + .arch-matrix-table-wrap { border-color: color-mix(in oklch, var(--color-primary) 28%, transparent); }
.arch-phase-3 + .arch-matrix-table-wrap { border-color: color-mix(in oklch, #7c5cdc 28%, transparent); }

/* Table */
.arch-matrix-table {
  width: 100%; border-collapse: collapse;
  background: var(--color-surface-2);
  font-size: var(--text-sm);
}
.arch-matrix-table thead tr {
  background: var(--color-surface-offset);
  border-bottom: 2px solid var(--color-divider);
}
.arch-matrix-table th {
  text-align: left; padding: var(--space-3) var(--space-4);
  font-size: var(--text-xs); font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--color-text-muted); white-space: nowrap;
}
.arch-matrix-table th:nth-child(2) { color: #d97706; }
.arch-matrix-table th:nth-child(4) { color: var(--color-primary); }
.arch-matrix-table tbody tr { border-bottom: 1px solid var(--color-divider); vertical-align: top; }
.arch-matrix-table tbody tr:last-child { border-bottom: none; }
.arch-row-priority { background: color-mix(in oklch, #d97706 4%, var(--color-surface-2)); }
.arch-matrix-table td { padding: var(--space-4) var(--space-4); line-height: 1.6; }

/* Week cell */
.arch-week-cell { white-space: nowrap; min-width: 64px; }
.arch-week-label { display: block; font-weight: 700; font-size: var(--text-sm); color: var(--color-text); }
.arch-week-days { display: block; font-size: var(--text-xs); color: var(--color-text-faint); }

/* Column accents */
.arch-min { color: var(--color-text); min-width: 180px; }
.arch-norm { color: var(--color-text-muted); min-width: 200px; }
.arch-exc { color: var(--color-text-muted); min-width: 200px; }
.arch-deliv { min-width: 150px; }

/* Priority badge */
.arch-priority-flag {
  display: inline-block; font-size: var(--text-xs); font-weight: 700;
  background: #d97706; color: #fff;
  padding: 1px var(--space-2); border-radius: var(--radius-sm);
  margin-bottom: var(--space-1); margin-right: var(--space-1);
}

/* Deliverable tag */
.arch-deliv { display: flex; flex-direction: column; gap: var(--space-1); }
.arch-deliv-tag {
  display: inline-block; font-size: var(--text-xs); font-weight: 700;
  padding: 1px var(--space-2); border-radius: var(--radius-sm);
  background: var(--color-surface-offset); color: var(--color-text-muted);
  align-self: flex-start;
}
.arch-deliv span:last-child { font-size: var(--text-xs); color: var(--color-text); font-weight: 500; line-height: 1.5; }

/* Summary 3-col block */
.arch-plan-summary {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5); margin-top: var(--space-8);
}
.arch-plan-summary-col {
  border-radius: var(--radius-lg); padding: var(--space-6);
  display: flex; flex-direction: column; gap: var(--space-3);
}
.arch-sum-min { background: color-mix(in oklch, #d97706 8%, var(--color-surface-2)); border: 1px solid color-mix(in oklch, #d97706 25%, transparent); }
.arch-sum-norm { background: var(--color-surface-2); border: 1px solid var(--color-divider); }
.arch-sum-exc { background: color-mix(in oklch, var(--color-primary) 6%, var(--color-surface-2)); border: 1px solid color-mix(in oklch, var(--color-primary) 22%, transparent); }
.arch-sum-icon { font-size: 1.5rem; line-height: 1; }
.arch-plan-summary-col h4 { font-size: var(--text-sm); font-weight: 700; font-family: var(--font-body); color: var(--color-text); }
.arch-plan-summary-col p { font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.7; }

/* Responsive overrides */
@media (max-width: 900px) {
  .arch-plan-summary { grid-template-columns: 1fr; }
  .arch-phase-header { flex-direction: column; gap: var(--space-2); }
  .arch-matrix-table { min-width: 640px; }
}
@media (max-width: 600px) {
  .arch-matrix-legend { flex-direction: column; gap: var(--space-2); }
  .arch-matrix-table { min-width: 560px; }
}