/* =========================================================
   LB · PORTFOLIO — OPERATIONAL INTELLIGENCE EDITION
   Light-first · Engineering-focused · Product-oriented
   Inspired by Stripe / Linear / Vercel product pages
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Instrument+Serif:ital@0;1&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* ── Light theme (default) ─────────────────────────── */
  --bg:           #fafaf8;
  --bg-2:         #f5f5f1;
  --surface:      #ffffff;
  --surface-2:    #f8f8f5;
  --surface-3:    #f0f0eb;
  --border:       #e7e7e2;
  --border-2:     #d4d4cd;
  --hover:        #f3f3ee;

  --text:         #0b0b0e;
  --text-2:       #3a3a42;
  --text-3:       #6b6b75;
  --text-4:       #a4a4ad;

  --accent:       #1e3a8a;          /* operational deep blue */
  --accent-2:     #2563eb;          /* interactive blue */
  --accent-3:     #60a5fa;          /* highlight blue */
  --accent-soft:  rgba(30,58,138,0.08);
  --accent-glow:  rgba(37,99,235,0.18);

  --signal:       #b45309;          /* impact amber */
  --signal-2:     #d97706;
  --signal-soft:  rgba(180,83,9,0.10);

  --success:      #15803d;
  --success-soft: rgba(21,128,61,0.10);
  --warning:      #b45309;
  --danger:       #be123c;

  --grid:         rgba(0,0,0,0.035);

  --shadow-sm:    0 1px 2px rgba(15,23,42,0.04);
  --shadow-card:  0 1px 3px rgba(15,23,42,0.04), 0 2px 12px rgba(15,23,42,0.04);
  --shadow-pop:   0 24px 60px -16px rgba(15,23,42,0.18), 0 0 0 1px rgba(15,23,42,0.04);
  --shadow-blue:  0 6px 20px -6px var(--accent-glow);

  --radius-sm:    6px;
  --radius:       10px;
  --radius-lg:    14px;
  --radius-xl:    18px;
  --radius-2xl:   24px;
  --radius-pill:  9999px;

  --serif:  'Instrument Serif', Georgia, serif;
  --sans:   'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --mono:   'JetBrains Mono', ui-monospace, Menlo, monospace;

  --container: 1180px;
  --ease:      cubic-bezier(0.22, 1, 0.36, 1);
  --ease-2:    cubic-bezier(0.4, 0, 0.2, 1);

  /* ── Type scale (fluid, 1.2 minor-third base) ───────── */
  --fs-mono:    11px;     /* eyebrows, mono labels */
  --fs-xs:      12.5px;   /* meta, captions */
  --fs-sm:      13.5px;   /* secondary body, card copy */
  --fs-base:    15px;     /* body */
  --fs-md:      17px;     /* lead paragraphs */
  --fs-lg:      21px;     /* card titles */
  --fs-xl:      clamp(22px, 2.4vw, 28px);   /* sub-section headings */
  --fs-2xl:     clamp(28px, 4vw, 44px);     /* section titles */
  --fs-3xl:     clamp(40px, 6vw, 72px);     /* hero */
  --lh-tight:   1.15;
  --lh-snug:    1.35;
  --lh-body:    1.6;
  --measure:    66ch;     /* readable line length cap */
  --tracking-caps: 0.12em;

  /* ── Spacing scale (4px base) ───────────────────────── */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  24px;
  --space-6:  32px;
  --space-7:  48px;
  --space-8:  64px;
  --space-9:  100px;

  /* Focus ring — accessibility + premium feel, theme-aware */
  --focus-ring: 0 0 0 2px var(--bg), 0 0 0 4px var(--accent-2);
}

[data-theme="dark"] {
  --bg:           #0a0a0c;
  --bg-2:         #101015;
  --surface:      #14141a;
  --surface-2:    #1a1a22;
  --surface-3:    #20202a;
  --border:       #26262e;
  --border-2:     #2f2f38;
  --hover:        #1d1d25;

  --text:         #f3f3f5;
  --text-2:       #c2c2cb;
  --text-3:       #8a8a95;
  --text-4:       #595964;

  --accent:       #60a5fa;
  --accent-2:     #3b82f6;
  --accent-3:     #93c5fd;
  --accent-soft:  rgba(96,165,250,0.12);
  --accent-glow:  rgba(96,165,250,0.30);

  --signal:       #fbbf24;
  --signal-2:     #f59e0b;
  --signal-soft:  rgba(251,191,36,0.12);

  --success:      #34d399;          /* legible green on dark */
  --success-soft: rgba(52,211,153,0.14);
  --warning:      #fbbf24;
  --danger:       #fb7185;          /* legible rose on dark */

  --grid:         rgba(255,255,255,0.025);
  --shadow-sm:    0 1px 2px rgba(0,0,0,0.5);
  --shadow-card:  0 4px 20px -4px rgba(0,0,0,0.5);
  --shadow-pop:   0 24px 60px -16px rgba(0,0,0,0.7), 0 0 0 1px rgba(255,255,255,0.05);
}

* { box-sizing: border-box; }
*::selection { background: var(--accent-soft); color: var(--text); }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: transparent; color: inherit; }
input, textarea, select { font: inherit; color: inherit; background: transparent; border: 0; outline: none; }

/* Editorial polish — consistent, accessible focus + aligned figures */
:where(a, button, input, textarea, select, [tabindex]):focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}
/* Numbers that sit in columns/rows align cleanly */
.kpi-num, .prod-metrics .num, .pmh-metric strong, .hero-stat .num,
.m .num, [data-tnum] { font-feature-settings: "tnum", "cv01"; font-variant-numeric: tabular-nums; }
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important;
      transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

/* Container + Section */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}
section {
  position: relative;
  padding: 100px 0;
  border-top: 1px solid var(--border);
}
section:first-of-type { border-top: 0; }
@media (max-width: 760px) { section { padding: 72px 0; } }

.section-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.section-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-eyebrow::before {
  content: ""; width: 28px; height: 1px; background: currentColor;
}
.section-title {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--text);
  margin: 0 0 14px;
  max-width: 740px;
}
.section-title .it {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--accent-2);
}
.section-sub {
  font-size: 17px;
  color: var(--text-2);
  max-width: 620px;
  margin: 0;
  line-height: 1.55;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-2);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: background 0.18s var(--ease-2), border-color 0.18s, transform 0.18s var(--ease-2);
  white-space: nowrap;
}
.btn:hover { background: var(--hover); border-color: var(--text-4); }
.btn-accent {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: var(--shadow-blue);
}
.btn-accent:hover { background: var(--accent-2); border-color: var(--accent-2); }
.btn-ghost { background: transparent; border-color: transparent; padding: 8px 14px; color: var(--text-2); }
.btn-ghost:hover { color: var(--text); background: var(--hover); }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-icon { padding: 8px; width: 36px; height: 36px; justify-content: center; }

/* Tag */
.tag {
  display: inline-flex; align-items: center;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-2);
}
.tag.accent { color: var(--accent); border-color: var(--accent-soft); background: var(--accent-soft); }
.tag.signal { color: var(--signal); border-color: var(--signal-soft); background: var(--signal-soft); }

/* ── Topnav ──────────────────────────────────────────── */
.topnav {
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: blur(14px) saturate(180%);
  -webkit-backdrop-filter: blur(14px) saturate(180%);
  background: color-mix(in oklab, var(--bg) 88%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, background 0.2s;
}
.topnav.scrolled { border-color: var(--border); }
.topnav-row {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}
.brand {
  display: inline-flex; align-items: center; gap: 12px;
  font-weight: 600;
  letter-spacing: -0.01em;
  font-size: 15px;
}
.brand-mark {
  width: 30px; height: 30px;
  border-radius: 8px;
  background: var(--accent);
  display: grid; place-items: center;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: #fff;
}
.nav-links { display: flex; align-items: center; gap: 4px; font-size: 13px; }
.nav-links a {
  padding: 8px 14px;
  color: var(--text-2);
  border-radius: var(--radius-pill);
  transition: color 0.15s, background 0.15s;
}
.nav-links a:hover { color: var(--text); background: var(--hover); }
.nav-right { display: flex; align-items: center; gap: 8px; }
@media (max-width: 860px) { .nav-links { display: none; } }

/* ── Hero ────────────────────────────────────────────── */
.hero {
  padding: 80px 0 80px;
  position: relative;
  border-top: 0;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(60% 80% at 50% 0%, var(--accent-soft), transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.hero-inner { position: relative; z-index: 1; max-width: 920px; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12.5px;
  color: var(--text-2);
  margin-bottom: 28px;
  padding: 6px 14px 6px 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
}
.status-pill {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  background: var(--success-soft);
  color: var(--success);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}
.status-pill .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--success);
}

.hero h1 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(38px, 6.5vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  margin: 0 0 16px;
}
.hero-subtitle {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(22px, 2.8vw, 32px);
  line-height: 1.25;
  color: var(--accent-2);
  margin: 0 0 28px;
  max-width: 800px;
  letter-spacing: -0.01em;
}
.hero-intro {
  font-size: 19px;
  color: var(--text-2);
  max-width: 660px;
  line-height: 1.5;
  margin: 0 0 36px;
}
.hero-ctas { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 56px; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
}
.hero-stats .stat { padding: 4px 24px; border-left: 1px solid var(--border); }
.hero-stats .stat:first-child { border-left: 0; padding-left: 0; }
.hero-stats .num {
  font-family: var(--sans);
  font-size: 32px; font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--accent);
  font-feature-settings: "tnum";
}
.hero-stats .lab {
  font-size: 12px; color: var(--text-3); margin-top: 4px;
  font-family: var(--mono); letter-spacing: 0.04em; text-transform: uppercase;
}
@media (max-width: 760px) {
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .hero-stats .stat { padding: 14px 16px; border-left: 0 !important; border-top: 1px solid var(--border); }
  .hero-stats .stat:first-child, .hero-stats .stat:nth-child(2) { border-top: 0; }
}

/* ── HYBRID CAPABILITY (Venn + grid) ─────────────────── */
/* legacy v2 styles — superseded by .signature in v3 below */
.hybrid-shell {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 900px) {
  .hybrid-shell { grid-template-columns: 1fr; gap: 32px; }
}

.venn {
  position: relative;
  width: 100%;
  max-width: 480px;
  aspect-ratio: 1;
  margin: 0 auto;
}
.venn svg { width: 100%; height: 100%; display: block; }
.venn .center-pill {
  position: absolute;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  padding: 8px 16px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-pill);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
  box-shadow: var(--shadow-blue);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 56px;
}
.capability-card {
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  transition: border-color 0.2s, transform 0.2s var(--ease-2);
}
.capability-card:hover {
  border-color: var(--accent-soft);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}
.capability-card .icon {
  width: 36px; height: 36px;
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--accent);
  display: grid; place-items: center;
  margin-bottom: 14px;
}
.capability-card h3 {
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 6px;
  letter-spacing: -0.01em;
}
.capability-card p {
  margin: 0;
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.5;
}

/* ── PROJECTS ────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 18px;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex; flex-direction: column;
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s var(--ease-2), box-shadow 0.2s;
  position: relative;
}
.project-card:hover {
  border-color: var(--border-2);
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}
.project-thumb {
  position: relative;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--surface-2), var(--surface-3));
  border-bottom: 1px solid var(--border);
  display: grid; place-items: center;
  overflow: hidden;
}
.project-thumb .placeholder-art {
  width: 100%; height: 100%;
  display: grid; place-items: center;
  color: var(--accent);
}
.project-thumb img, .project-thumb video {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.project-status {
  position: absolute; top: 12px; right: 12px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  padding: 4px 10px;
  background: rgba(255,255,255,0.92);
  color: var(--text);
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-2);
  backdrop-filter: blur(8px);
}
[data-theme="dark"] .project-status {
  background: rgba(20,20,26,0.85);
  color: var(--text);
  border-color: var(--border-2);
}
.project-body { padding: 22px 24px 24px; flex: 1; display: flex; flex-direction: column; }
.project-cat {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.project-name { font-size: 20px; font-weight: 600; letter-spacing: -0.015em; margin: 0 0 8px; line-height: 1.2; }
.project-desc { color: var(--text-2); font-size: 14px; line-height: 1.55; margin: 0 0 18px; flex: 1; }
.project-metrics {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  border-top: 1px solid var(--border);
  padding-top: 14px;
  margin-bottom: 14px;
}
.project-metrics .m { padding: 0 12px; border-left: 1px solid var(--border); }
.project-metrics .m:first-child { padding-left: 0; border-left: 0; }
.project-metrics .num {
  font-size: 17px;
  font-weight: 600;
  color: var(--signal);
  font-feature-settings: "tnum";
}
.project-metrics .lab { font-size: 10px; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.08em; font-family: var(--mono); margin-top: 2px; }
.project-stack { display: flex; flex-wrap: wrap; gap: 6px; }

/* Project modal (case study viewer) */
.modal-overlay {
  position: fixed; inset: 0; z-index: 100;
  background: color-mix(in oklab, var(--text) 60%, transparent);
  backdrop-filter: blur(8px);
  display: grid; place-items: center;
  padding: 24px;
  animation: fadeIn 0.2s var(--ease-2);
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-2xl);
  max-width: 920px; width: 100%;
  max-height: 88vh; overflow: auto;
  box-shadow: var(--shadow-pop);
  animation: pop 0.25s var(--ease);
}
@keyframes pop { from { opacity: 0; transform: scale(0.96) translateY(8px); } to { opacity: 1; transform: scale(1); } }
.modal-hero {
  position: relative;
  aspect-ratio: 21/9;
  background: linear-gradient(135deg, var(--surface-2), var(--surface-3));
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.modal-hero img, .modal-hero video { width: 100%; height: 100%; object-fit: cover; }
.modal-close {
  position: absolute; top: 16px; right: 16px;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border-2);
  display: grid; place-items: center;
  box-shadow: var(--shadow-sm);
}
.modal-body { padding: 32px 40px 40px; }
.modal h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 600; letter-spacing: -0.025em; margin: 0 0 8px; }
.modal-cat { color: var(--accent); font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 14px; }
.modal-section { margin-top: 28px; }
.modal-section h4 {
  font-size: 11px;
  font-family: var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  margin: 0 0 12px;
  font-weight: 600;
}
.modal-section p, .modal-section li { color: var(--text-2); font-size: 15px; line-height: 1.65; }
.modal-section ul { padding-left: 18px; margin: 0; }
.modal-section ul li { margin: 4px 0; }
.modal-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }

/* ── ENGINEERING APPROACH ────────────────────────────── */
.approach-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.approach-card {
  padding: 26px 24px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s var(--ease-2);
}
.approach-card:hover {
  border-color: var(--accent-soft);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}
.approach-card .diagram {
  width: 56px; height: 56px;
  margin-bottom: 18px;
  display: grid; place-items: center;
  color: var(--accent);
  border: 1px solid var(--accent-soft);
  background: var(--accent-soft);
  border-radius: var(--radius-lg);
}
.approach-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
  line-height: 1.25;
}
.approach-card p {
  margin: 0;
  font-size: 13.5px;
  color: var(--text-2);
  line-height: 1.55;
}
.approach-card .num {
  position: absolute;
  top: 18px; right: 22px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-4);
  letter-spacing: 0.08em;
}

/* ── APPLICATION SHOWCASE (mockups) ──────────────────── */
.showcase-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}
.showcase-grid + .showcase-grid {
  grid-template-columns: 1fr 1.2fr;
}
@media (max-width: 860px) {
  .showcase-grid, .showcase-grid + .showcase-grid { grid-template-columns: 1fr; }
}

.showcase-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  display: flex; flex-direction: column;
  overflow: hidden;
}
.showcase-cat {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.showcase-card h3 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0 0 8px;
}
.showcase-card p {
  margin: 0 0 22px;
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.6;
}
.showcase-mock {
  flex: 1;
  min-height: 240px;
  border-radius: var(--radius-lg);
  background: var(--surface-2);
  border: 1px solid var(--border);
  overflow: hidden;
  display: flex; flex-direction: column;
}

/* Windows mock */
.mock-win-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-3);
}
.mock-win-bar .dot { width: 12px; height: 12px; border-radius: 50%; }
.mock-win-bar .dot.r { background: #ff5f56; }
.mock-win-bar .dot.y { background: #ffbd2e; }
.mock-win-bar .dot.g { background: #27c93f; }
.mock-win-bar .ttl { margin-left: 12px; font-family: var(--mono); font-size: 11px; color: var(--text-3); letter-spacing: 0.04em; }
.mock-win-body { flex: 1; padding: 18px 20px; font-family: var(--mono); font-size: 11.5px; color: var(--text-2); line-height: 1.6; overflow: hidden; }
.mock-win-body .line { display: flex; gap: 12px; padding: 4px 0; }
.mock-win-body .line .k { color: var(--accent); width: 100px; flex-shrink: 0; }
.mock-win-body .line .v { color: var(--text-2); }
.mock-win-body .ok { color: var(--success); }
.mock-win-body .warn { color: var(--signal); }
.mock-win-body .step {
  display: flex; gap: 10px; padding: 6px 0;
  border-bottom: 1px dashed var(--border);
}
.mock-win-body .step:last-child { border-bottom: 0; }
.mock-win-body .step .num { color: var(--text-4); width: 24px; }

/* Phone mock */
.mock-phone {
  flex: 1;
  display: grid; place-items: center;
  padding: 24px;
  background: linear-gradient(180deg, var(--surface-3), var(--surface-2));
}
.phone-frame {
  width: 200px;
  aspect-ratio: 9/19;
  border-radius: 28px;
  background: var(--text);
  padding: 8px;
  box-shadow: 0 20px 40px -16px rgba(0,0,0,0.3);
  position: relative;
}
.phone-frame::before {
  content: "";
  position: absolute;
  top: 14px; left: 50%; transform: translateX(-50%);
  width: 50px; height: 14px;
  background: #000; border-radius: 0 0 12px 12px;
  z-index: 2;
}
.phone-screen {
  width: 100%; height: 100%;
  background: var(--surface);
  border-radius: 20px;
  padding: 36px 14px 14px;
  display: flex; flex-direction: column; gap: 8px;
  position: relative;
  overflow: hidden;
}
.phone-screen .head {
  font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 4px;
  letter-spacing: -0.01em;
}
.phone-screen .label {
  font-size: 8.5px; color: var(--text-3); font-family: var(--mono); letter-spacing: 0.08em; text-transform: uppercase;
}
.phone-screen .row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 10px;
  border-radius: 6px;
  background: var(--surface-2);
  font-size: 10px; color: var(--text-2);
}
.phone-screen .row strong { color: var(--text); font-size: 11px; }
.phone-screen .row .pos { color: var(--success); font-family: var(--mono); font-size: 9.5px; }
.phone-screen .row .neg { color: var(--signal); font-family: var(--mono); font-size: 9.5px; }
.phone-screen .cta {
  margin-top: auto;
  padding: 9px 0;
  background: var(--accent);
  color: #fff;
  text-align: center;
  border-radius: 8px;
  font-size: 10.5px; font-weight: 600;
}

/* Dashboard mock */
.mock-dash {
  flex: 1; padding: 18px;
  display: grid; gap: 10px;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto 1fr;
  background: var(--surface);
}
.mock-dash .kpi {
  padding: 10px 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.mock-dash .kpi .v { font-size: 18px; font-weight: 600; color: var(--accent); letter-spacing: -0.01em; }
.mock-dash .kpi .v.signal { color: var(--signal); }
.mock-dash .kpi .l { font-size: 9.5px; color: var(--text-3); font-family: var(--mono); letter-spacing: 0.06em; text-transform: uppercase; margin-top: 4px; }
.mock-dash .chart {
  grid-column: 1 / -1;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 14px 10px;
  display: flex; flex-direction: column; gap: 10px;
}
.mock-dash .chart .ttl { font-size: 11px; color: var(--text-3); font-family: var(--mono); letter-spacing: 0.06em; text-transform: uppercase; }
.mock-dash .bars { display: flex; align-items: flex-end; gap: 4px; height: 60px; }
.mock-dash .bar { flex: 1; background: var(--accent-soft); border-radius: 2px; position: relative; }
.mock-dash .bar.hi { background: var(--accent); }
.mock-dash .bar.signal { background: var(--signal); }

/* Workflow diagram mock */
.mock-flow {
  flex: 1; padding: 22px;
  display: flex; align-items: center; justify-content: center;
}
.mock-flow svg { width: 100%; height: auto; max-height: 220px; }

/* ── TECH STACK (categorized) ────────────────────────── */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.stack-card {
  padding: 22px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.stack-card .cat {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
  display: flex; align-items: center; gap: 8px;
}
.stack-card .cat::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor;
}
.stack-card .items { display: flex; flex-wrap: wrap; gap: 6px; }
.stack-card .items .tag { font-size: 11.5px; padding: 5px 11px; }

/* ── CASE STUDIES ────────────────────────────────────── */
.cases {
  display: flex; flex-direction: column;
  border-top: 1px solid var(--border);
}
.case {
  border-bottom: 1px solid var(--border);
  padding: 22px 0;
  transition: padding 0.2s var(--ease-2);
}
.case[open] { padding: 30px 0 32px; }
.case summary {
  cursor: pointer;
  list-style: none;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 20px;
  align-items: center;
}
.case summary::-webkit-details-marker { display: none; }
.case .num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.10em;
  color: var(--text-4);
}
.case .ttl-row {
  display: flex; flex-direction: column; gap: 4px;
}
.case .ttl {
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--text);
  line-height: 1.25;
}
.case .ttl-row .sub {
  font-size: 13.5px;
  color: var(--text-3);
}
.case .chev {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border-2);
  display: grid; place-items: center;
  color: var(--text-2);
  transition: transform 0.2s var(--ease-2);
}
.case[open] .chev { transform: rotate(180deg); background: var(--accent); border-color: var(--accent); color: #fff; }

.case .case-body {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 22px;
  padding-left: 36px;
}
.case .case-body h4 {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 10px;
}
.case .case-body p {
  margin: 0;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
}
.case .case-body ul {
  margin: 0; padding-left: 18px;
}
.case .case-body li {
  font-size: 13.5px;
  color: var(--text-2);
  margin: 3px 0;
}
.case-impact {
  display: flex; gap: 22px; flex-wrap: wrap;
  margin-top: 6px;
}
.case-impact .im {
  flex: 1; min-width: 120px;
  padding: 12px 16px;
  background: var(--signal-soft);
  border-radius: 8px;
  border: 1px solid rgba(180,83,9,0.18);
}
.case-impact .im .v { font-size: 18px; font-weight: 600; color: var(--signal); letter-spacing: -0.01em; }
.case-impact .im .l { font-size: 10.5px; color: var(--text-3); margin-top: 2px; font-family: var(--mono); letter-spacing: 0.06em; text-transform: uppercase; }

@media (max-width: 720px) {
  .case .case-body { padding-left: 0; }
  .case summary { gap: 14px; }
}

/* ── RESUME CENTER ───────────────────────────────────── */
.resume-shell {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
}
.resume-shell h3 { font-size: 24px; font-weight: 600; letter-spacing: -0.02em; margin: 0 0 6px; }
.resume-shell p { color: var(--text-2); margin: 0 0 18px; }
.resume-meta {
  display: flex; gap: 18px; flex-wrap: wrap;
  font-size: 12px; color: var(--text-3); font-family: var(--mono); letter-spacing: 0.04em;
}
.resume-actions { display: flex; gap: 10px; flex-shrink: 0; }
@media (max-width: 720px) { .resume-shell { grid-template-columns: 1fr; padding: 26px; } }

/* ── CONTACT (minimal direct) ────────────────────────── */
.contact-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}
.contact-channel {
  display: flex; align-items: center; gap: 16px;
  padding: 22px 24px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  transition: border-color 0.2s, transform 0.2s var(--ease-2);
}
.contact-channel:hover {
  border-color: var(--accent-soft);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}
.contact-channel .icon {
  width: 42px; height: 42px;
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--accent);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.contact-channel .lab {
  font-size: 11px; color: var(--text-3); font-family: var(--mono);
  letter-spacing: 0.08em; text-transform: uppercase;
}
.contact-channel .val { font-size: 14.5px; font-weight: 500; color: var(--text); }

/* ── Footer ──────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  margin-top: 64px;
}
.foot-row {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 13px; color: var(--text-3);
  flex-wrap: wrap; gap: 16px;
}
.foot-row a { color: var(--text-3); }
.foot-row a:hover { color: var(--text); }

/* ── Admin Panel ─────────────────────────────────────── */
.admin-launcher {
  position: fixed; bottom: 24px; right: 24px; z-index: 50;
  width: 50px; height: 50px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: grid; place-items: center;
  box-shadow: var(--shadow-blue);
  cursor: pointer;
  transition: transform 0.2s var(--ease-2);
}
.admin-launcher:hover { transform: scale(1.05); }
.admin-launcher.active { background: var(--surface); color: var(--accent); border: 1px solid var(--border-2); }

.admin-panel {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 60;
  width: min(760px, 96vw);
  background: var(--surface);
  border-left: 1px solid var(--border-2);
  box-shadow: var(--shadow-pop);
  display: flex; flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.32s var(--ease);
}
.admin-panel.open { transform: translateX(0); }
.admin-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
}
.admin-head h3 { margin: 0; font-size: 15px; font-weight: 600; }
.admin-head .sub { font-size: 11px; color: var(--text-3); font-family: var(--mono); letter-spacing: 0.08em; text-transform: uppercase; margin-top: 2px; }
.admin-tabs {
  display: flex; gap: 4px;
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  flex-wrap: nowrap;
}
.admin-tabs::-webkit-scrollbar { display: none; }
.admin-tab {
  font-size: 12px;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--text-3);
  white-space: nowrap;
  transition: all 0.15s;
}
.admin-tab:hover { color: var(--text-2); background: var(--hover); }
.admin-tab.active { background: var(--accent-soft); color: var(--accent); }
/* Grouped, recruiter-first nav: labelled clusters instead of one long scroll */
.admin-tabs-grouped {
  flex-direction: column;
  flex-wrap: nowrap;
  align-items: stretch;
  gap: 12px;
  max-height: 240px;
  overflow-y: auto;
  overflow-x: hidden;
}
.admin-tab-group { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }
.admin-tab-group-label {
  width: 100%;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-3);
  font-family: var(--mono);
  margin-bottom: 2px;
}
.admin-body { flex: 1; overflow-y: auto; padding: 22px 22px 80px; }
.admin-foot {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px;
  border-top: 1px solid var(--border);
  background: var(--surface);
  font-size: 12px; color: var(--text-3);
}

/* Form primitives (admin) */
.form-row { margin-bottom: 18px; }
.form-row .lab { display: block; font-size: 11px; font-family: var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-3); margin-bottom: 6px; }
.form-row input[type="text"],
.form-row input[type="url"],
.form-row input[type="email"],
.form-row input[type="tel"],
.form-row textarea,
.form-row select {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  font-size: 13.5px;
  transition: border-color 0.15s;
}
.form-row input:focus, .form-row textarea:focus, .form-row select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.form-row textarea { min-height: 88px; resize: vertical; font-family: var(--sans); }
.form-row .hint { font-size: 11.5px; color: var(--text-3); margin-top: 6px; }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
@media (max-width: 540px) {
  .form-grid-2, .form-grid-3 { grid-template-columns: 1fr; }
}

.admin-item-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 10px;
}
.admin-item-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}
.admin-item-head .ttl { font-weight: 600; font-size: 14px; }
.admin-item-actions { display: flex; gap: 4px; }

.upload-tile {
  border: 1px dashed var(--border-2);
  background: var(--bg-2);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  color: var(--text-3);
}
.upload-tile:hover { background: var(--surface-2); border-color: var(--accent); color: var(--accent); }
.upload-tile.has-media { padding: 0; aspect-ratio: 16/9; overflow: hidden; }
.upload-tile.has-media img, .upload-tile.has-media video { width: 100%; height: 100%; object-fit: cover; }

.row-add {
  width: 100%;
  border: 1px dashed var(--border-2);
  background: transparent;
  color: var(--text-2);
  padding: 12px;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  transition: all 0.15s;
}
.row-add:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }

/* Toast */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(8px);
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-pill);
  padding: 10px 18px;
  font-size: 13px;
  box-shadow: var(--shadow-pop);
  z-index: 90;
  display: flex; align-items: center; gap: 10px;
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s, transform 0.2s var(--ease-2);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: auto; }
.toast .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); }

/* Inline edit hover when admin mode on */
.is-admin .editable {
  position: relative;
  outline: 1px dashed transparent;
  outline-offset: 4px;
  transition: outline-color 0.15s;
}
.is-admin .editable:hover { outline-color: var(--accent); }
.edit-pill {
  display: none;
  position: absolute; top: -10px; right: -10px;
  background: var(--accent); color: #fff;
  font-size: 10px; font-family: var(--mono);
  padding: 3px 8px; border-radius: var(--radius-pill);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  z-index: 2;
}
.is-admin .editable:hover .edit-pill { display: inline-flex; }

/* Card (fallback) */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color 0.2s var(--ease-2), background 0.2s var(--ease-2), transform 0.2s var(--ease-2);
}
.card:hover { border-color: var(--border-2); }

.muted { color: var(--text-3); }
.fade-up { animation: fadeUp 0.6s var(--ease) both; }

/* =========================================================
   v4 · PERSONAL ENGINEERING PLATFORM additions
   ========================================================= */

/* ── Frameworks grid ──────────────────────────────────── */
.frameworks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}
.framework-card {
  padding: 26px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  display: flex; flex-direction: column;
  transition: border-color 0.2s, transform 0.2s var(--ease-2), box-shadow 0.2s;
  position: relative; overflow: hidden;
}
.framework-card::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity: 0; transition: opacity 0.3s;
}
.framework-card:hover {
  border-color: var(--accent-soft);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}
.framework-card:hover::before { opacity: 1; }
.framework-card .fw-head {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 12px;
}
.framework-card .fw-ic {
  width: 38px; height: 38px;
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--accent);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.framework-card h3 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
  line-height: 1.25;
}
.framework-card .fw-summary {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.6;
  margin: 0 0 14px;
  flex: 1;
}
.framework-card .fw-pillars {
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
  display: flex; flex-direction: column; gap: 4px;
}
.framework-card .fw-pillars li {
  position: relative;
  padding-left: 18px;
  font-size: 12.5px;
  color: var(--text-2);
}
.framework-card .fw-pillars li::before {
  content: ""; position: absolute;
  left: 4px; top: 0.65em;
  width: 8px; height: 1px;
  background: var(--accent);
}
.framework-card .fw-foot {
  border-top: 1px solid var(--border);
  padding-top: 14px;
  display: flex; flex-direction: column; gap: 10px;
}
.framework-card .fw-tags {
  display: flex; flex-wrap: wrap; gap: 5px;
}
.framework-card .fw-tags .tag { font-size: 10.5px; padding: 3px 8px; }
.framework-card .fw-linked {
  font-size: 11.5px;
  color: var(--text-3);
  font-family: var(--mono);
  letter-spacing: 0.02em;
}
.framework-card .fw-linked strong {
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 10px;
}

/* ── Learning portal · episodes ───────────────────────── */
.episodes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 18px;
}
.episode-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: border-color 0.2s, transform 0.2s var(--ease-2), box-shadow 0.2s;
}
.episode-card:hover {
  border-color: var(--border-2);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}
.episode-card .ep-banner {
  position: relative;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--surface-2), var(--surface-3));
  display: grid; place-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.episode-card .ep-banner img {
  width: 100%; height: 100%; object-fit: cover;
}
.episode-card .ep-banner .placeholder-art {
  width: 100%; height: 100%;
  display: grid; place-items: center;
  color: var(--accent);
}
.episode-card .ep-num {
  position: absolute; top: 14px; left: 14px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  padding: 4px 10px;
  background: rgba(255,255,255,0.95);
  color: var(--accent);
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-2);
}
[data-theme="dark"] .episode-card .ep-num {
  background: rgba(20,20,26,0.9);
  color: var(--accent-3);
}
.episode-card .ep-body {
  padding: 22px 24px 24px;
  flex: 1; display: flex; flex-direction: column;
}
.ep-meta {
  display: flex; justify-content: space-between; align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.ep-meta .ep-fw { color: var(--accent); font-weight: 600; }
.ep-meta .ep-dur { color: var(--text-3); }
.episode-card h3 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0 0 8px;
  line-height: 1.25;
}
.episode-card p {
  color: var(--text-2);
  font-size: 13.5px;
  line-height: 1.55;
  margin: 0 0 14px;
  flex: 1;
}
.ep-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.ep-tags .tag { font-size: 10.5px; padding: 3px 8px; }

/* ── Download Center ──────────────────────────────────── */
.downloads-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 14px;
}
.download-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px;
  align-items: flex-start;
  padding: 22px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text);
  transition: border-color 0.2s, transform 0.2s var(--ease-2), box-shadow 0.2s;
}
.download-card:hover {
  border-color: var(--accent-soft);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}
.dl-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--accent);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.dl-body { min-width: 0; }
.dl-meta {
  display: flex; gap: 10px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.dl-type { color: var(--accent); }
.dl-size { color: var(--text-3); }
.download-card h3 {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.005em;
  margin: 0 0 6px;
  line-height: 1.3;
}
.download-card p {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.5;
}
.dl-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.dl-tags .tag { font-size: 10px; padding: 3px 8px; }
.dl-arrow {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--bg-2);
  border: 1px solid var(--border);
  color: var(--text-3);
  display: grid; place-items: center;
  flex-shrink: 0;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.download-card:hover .dl-arrow {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ── Journey timeline ─────────────────────────────────── */
.journey-rail {
  position: relative;
  display: flex; flex-direction: column;
  gap: 18px;
  padding-left: 28px;
}
.journey-rail::before {
  content: "";
  position: absolute;
  left: 8px; top: 8px; bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-soft) 100%);
  border-radius: 2px;
}
.journey-stop {
  position: relative;
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 22px;
  align-items: flex-start;
}
.journey-stop::before {
  content: "";
  position: absolute;
  left: -28px; top: 14px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--surface);
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
  z-index: 1;
}
.journey-stop:last-child::before {
  background: var(--accent);
  border-color: var(--accent);
}
.js-year {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--accent);
  padding-top: 14px;
}
.js-card {
  padding: 18px 22px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color 0.2s;
}
.js-card:hover { border-color: var(--accent-soft); }
.js-card h3 {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 4px;
  line-height: 1.25;
}
.js-where {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}
.js-card p {
  margin: 0;
  font-size: 13.5px;
  color: var(--text-2);
  line-height: 1.6;
}
@media (max-width: 640px) {
  .journey-stop { grid-template-columns: 1fr; gap: 6px; }
  .js-year { padding-top: 0; }
}

@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* =========================================================
   v4.1 · Hero avatar + Showcase image override
   ========================================================= */
.hero-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: flex-start;
}
@media (max-width: 860px) {
  .hero-row { grid-template-columns: 1fr; gap: 32px; }
  .hero-avatar { order: -1; justify-self: flex-start; }
}
.hero-text { min-width: 0; }

.hero-avatar {
  position: relative;
  width: 220px; height: 220px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  display: grid; place-items: center;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  flex-shrink: 0;
}
.hero-avatar img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.hero-avatar-fallback {
  font-family: var(--mono);
  font-size: 64px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.04em;
}
.hero-avatar-ring {
  position: absolute; inset: -8px;
  border-radius: 50%;
  border: 2px solid var(--accent-soft);
  pointer-events: none;
}
@media (max-width: 540px) {
  .hero-avatar { width: 160px; height: 160px; }
  .hero-avatar-fallback { font-size: 48px; }
}

.showcase-mock.showcase-image {
  padding: 0;
  background: var(--surface);
}
.showcase-mock.showcase-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

/* Framework poster (full-bleed image inside a framework card) */
.fw-poster {
  display: block;
  margin: 0 0 16px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  position: relative;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, transform 0.2s var(--ease-2);
}
.fw-poster:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}
.fw-poster img {
  width: 100%; height: auto; display: block;
}
.fw-poster-cap {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--text-3);
  line-height: 1.4;
}
.fw-poster-cap svg { color: var(--accent); flex-shrink: 0; }

/* Framework with poster gets full-width card */
.frameworks-grid:has(.framework-card .fw-poster) {
  /* No layout change needed — the card just grows in height */
}

/* =========================================================
   v3 · SIGNATURE IDENTITY (interactive Venn + 3-block legend)
   ========================================================= */
.signature {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 56px;
  align-items: center;
}
@media (max-width: 1000px) {
  .signature { grid-template-columns: 1fr; gap: 40px; }
}

.signature-venn {
  position: relative;
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.signature-venn-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  padding: 38px 8px 8px;
}
.signature-venn > svg,
.signature-venn-stage > svg {
  position: absolute;
  left: 8px; right: 8px;
  top: 38px; bottom: 8px;
  width: calc(100% - 16px);
  height: calc(100% - 46px);
  display: block;
  color: var(--text-2);
}

/* ── Domain expertise stratum (above the Venn) ─────────────── */
.venn-domains {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--surface) 92%, transparent), var(--surface));
}
.venn-domains-axis {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3, var(--text-2));
  opacity: 0.85;
}
.venn-domains-axis .vd-tick {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border) 30%, var(--border) 70%, transparent);
}
.venn-domains-axis .vd-axis-label {
  white-space: nowrap;
}
.venn-domains-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}
.venn-domain-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px 5px 6px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--text-1);
  white-space: nowrap;
  transition: border-color 0.18s, transform 0.18s var(--ease-2), color 0.18s;
}
.venn-domain-chip:hover {
  border-color: color-mix(in oklab, var(--accent) 55%, var(--border));
  transform: translateY(-1px);
}
.venn-domain-chip .vd-code {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 18px;
  padding: 0 5px;
  border-radius: 4px;
  background: color-mix(in oklab, var(--accent) 14%, transparent);
  color: var(--accent);
  font-weight: 700;
  font-size: 9px;
  letter-spacing: 0.12em;
}
.venn-domain-chip .vd-label {
  font-weight: 500;
  letter-spacing: 0.02em;
  font-size: 11px;
  text-transform: none;
  color: var(--text-1);
}

/* ── External title labels around the Venn ─────────────────── */
.venn-label {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px 7px 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  font-family: var(--mono);
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
  z-index: 3;
  max-width: calc(100% - 16px);
}
.venn-label .vl-axis {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 7px;
  border-radius: 4px;
  background: color-mix(in oklab, currentColor 14%, transparent);
  color: var(--vl-c, var(--accent));
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.18em;
}
.venn-label .vl-rule {
  width: 14px;
  height: 1px;
  background: var(--border);
  flex-shrink: 0;
}
.venn-label .vl-title {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--text-1);
}
.venn-label[data-color] { --vl-c: attr(data-color color, var(--accent)); }
.venn-label-top   {
  top: 0;
  left: 50%;
  transform: translate(-50%, 0);
  --vl-c: #1e3a8a;
}
.venn-label-left  {
  bottom: 8px;
  left: -4px;
  --vl-c: #2563eb;
}
.venn-label-right {
  bottom: 8px;
  right: -4px;
  --vl-c: #0c4a6e;
}
[data-theme="dark"] .venn-label-top   { --vl-c: #93c5fd; }
[data-theme="dark"] .venn-label-left  { --vl-c: #60a5fa; }
[data-theme="dark"] .venn-label-right { --vl-c: #67e8f9; }

@media (max-width: 640px) {
  .venn-label { padding: 6px 10px 6px 8px; gap: 6px; }
  .venn-label .vl-axis  { font-size: 8.5px; padding: 2px 5px; }
  .venn-label .vl-title { font-size: 9.5px; letter-spacing: 0.08em; }
  .venn-label .vl-rule  { width: 8px; }
  .venn-label-left, .venn-label-right { left: 0; right: 0; }
  .venn-label-right { left: auto; }
  .venn-domain-chip .vd-label { font-size: 10.5px; }
}

/* ── Centre pill — the synthesis point ─────────────────────── */
.venn-center {
  position: absolute;
  top: calc(50% + 18px);
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--accent);
  color: #fff;
  padding: 14px 26px 12px;
  border-radius: var(--radius-lg, 14px);
  box-shadow: 0 14px 36px -10px rgba(30, 58, 138, 0.55), 0 0 0 6px rgba(255, 255, 255, 0.6);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 4px;
  text-align: center;
  white-space: nowrap;
  z-index: 4;
  transition: transform 0.25s var(--ease-2);
}
[data-theme="dark"] .venn-center {
  box-shadow:
    0 14px 36px -10px rgba(96, 165, 250, 0.45),
    0 0 0 1px rgba(255,255,255,0.06),
    0 0 0 6px rgba(0, 0, 0, 0.5);
}
.venn-center .vc-eyebrow {
  font-family: var(--mono);
  font-size: 8.5px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  opacity: 0.75;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(255,255,255,0.18);
  margin-bottom: 2px;
}
.venn-center strong {
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  line-height: 1.2;
}
.venn-center .vc-sub,
.venn-center span {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.78;
  line-height: 1.2;
}

/* 3-block legend */
.legend {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.legend-block {
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s var(--ease-2), box-shadow 0.2s;
  outline: none;
}
.legend-block:hover,
.legend-block:focus,
.legend-block[data-active="true"] {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}
.legend-block .lh {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.legend-block .lh .swatch {
  width: 12px; height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
  transition: box-shadow 0.2s;
}
.legend-block .lh .ttl {
  flex: 1;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--text);
  line-height: 1.25;
}
.legend-block .lh .ic {
  width: 30px; height: 30px;
  border-radius: 8px;
  display: grid; place-items: center;
  flex-shrink: 0;
}
.legend-block .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.legend-block .tags .tag {
  font-size: 11px;
  padding: 4px 10px;
}

/* =========================================================
   v3 · HOW I BUILD SYSTEMS (6-step process chain)
   ========================================================= */
.flow-chain {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
  position: relative;
}
@media (max-width: 1100px) { .flow-chain { grid-template-columns: repeat(3, 1fr); row-gap: 28px; } }
@media (max-width: 640px)  { .flow-chain { grid-template-columns: 1fr; row-gap: 14px; } }

.flow-step {
  position: relative;
  padding: 22px 20px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color 0.2s, transform 0.2s var(--ease-2), box-shadow 0.2s;
}
.flow-step:hover {
  border-color: var(--accent-soft);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}
.flow-step .num {
  position: absolute;
  top: 14px; right: 16px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-4);
  letter-spacing: 0.10em;
}
.flow-step .ic {
  width: 38px; height: 38px;
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--accent);
  display: grid; place-items: center;
  margin-bottom: 14px;
}
.flow-step h3 {
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
  line-height: 1.25;
  color: var(--text);
}
.flow-step p {
  margin: 0;
  font-size: 12.5px;
  color: var(--text-2);
  line-height: 1.5;
}

.flow-arrow {
  position: absolute;
  top: 36px;
  right: -13px;
  width: 24px; height: 24px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--accent);
  display: grid; place-items: center;
  z-index: 2;
}
@media (max-width: 1100px) {
  .flow-arrow { display: none; }
}