/* ── purple scale (darkest → lightest) ───────────────────────
   p900 #05030d   p800 #0a0812   p700 #130d22   p600 #1d1535
   p500 #2d1b69   p400 #4c1d95   p300 #7c3aed   p200 #b06ef3
   p100 #d8b4fe   p50  #ede8f5   p10  #f5edff   p0   #faf8ff
──────────────────────────────────────────────────────────── */

:root,
[data-theme="dark"] {
  --bg:          #05030d;   /* p900 — darkest page bg */
  --bg-alt:      #130d22;   /* p700 — slightly lighter dark */
  --card:        #1d1535;   /* p600 — card surface */
  --border:      #2d1b69;   /* p500 — borders */
  --text:        #ede8f5;   /* p50  — near-white lavender */
  --muted:       #8678ac;
  --sub:         #a899c4;
  --accent:      #b06ef3;   /* p200 — bright purple */
  --accent-hov:  #9c4ee8;
  --accent-dim:  #2d1b69;   /* p500 */
  --accent-2:    #7c3aed;   /* p300 — secondary button bg */
  --accent-2-hov:#6b21d6;
  --danger:      #ef4444;
  --danger-bg:   #1a0520;
  --success:     #22c55e;
  --warning:     #f59e0b;
  --text-muted:  var(--muted);
  --text-sub:    var(--sub);
  --accent-muted: var(--accent-dim);
  --nav-h:       52px;
  --radius:      3px;
  --shadow:      0 2px 12px rgba(5,3,13,0.7);
}

[data-theme="light"] {
  --bg:         #fdf9ff;
  --bg-alt:     #f5edff;
  --card:       #ffffff;
  --border:     #e4d4f7;
  --text:       #1a0a2e;
  --muted:      #705f93;
  --sub:        #5b4680;
  --accent:     #7c3aed;
  --accent-hov: #6b21d6;
  --accent-dim: #ede9fe;
  --accent-2:   #9c4ee8;
  --accent-2-hov:#7c3aed;
  --danger:     #dc2626;
  --danger-bg:  #fef2f2;
  --success:    #16a34a;
  --warning:    #d97706;
  --shadow:     0 2px 8px rgba(80,20,120,0.10);
}

/* ── reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html  { scroll-behavior: smooth; }

body  {
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
  transition: background 0.2s, color 0.2s;
}

main {
  flex: 1;
}
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
p { margin-bottom: 0.75rem; }
p:last-child { margin-bottom: 0; }
ul { list-style: none; }

/* ── layout ─────────────────────────────────────────────── */
.container { max-width: 100%; margin: 0; padding: 0 1.5rem; }

.skip-link {
  position: absolute; top: -100px; left: 1rem;
  background: var(--accent); color: #fff;
  padding: 0.5rem 1rem; border-radius: 0 0 var(--radius) var(--radius);
  font-size: 0.875rem; font-weight: 600; z-index: 9999;
  transition: top 0.2s;
}
.skip-link:focus { top: 0; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* ── nav ─────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-h);
  background: var(--card); border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
}
.nav-inner {
  width: 100%; padding: 0 1.5rem;
  display: flex; align-items: center; gap: 1.5rem;
}
.nav-brand {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 1rem; font-weight: 700; color: var(--text); text-decoration: none; white-space: nowrap;
}
.nav-brand:hover { color: var(--accent); text-decoration: none; }
.nav-right { display: flex; align-items: center; gap: 0.5rem; margin-left: auto; }

.nav-icon-btn {
  display: flex; align-items: center; justify-content: center;
  width: 2.5rem; height: 2.5rem; padding: 0;
  background: var(--bg-alt); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--muted);
  cursor: pointer; transition: border-color 0.15s, color 0.15s; flex-shrink: 0;
}
.nav-icon-btn:hover { border-color: var(--accent); color: var(--text); }
.nav-icon-btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* ── accessibility menu ──────────────────────────────────── */
.a11y-menu-wrapper { position: relative; }
.a11y-menu {
  position: absolute; top: calc(100% + 0.5rem); right: 0;
  width: 280px; background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.1rem; z-index: 200; box-shadow: var(--shadow);
}
.a11y-menu[hidden] { display: none; }
.a11y-menu-title {
  font-size: 0.75rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--muted); margin-bottom: 0.75rem;
}
.a11y-section { border: none; padding: 0; margin-bottom: 0.75rem; }
.a11y-label { font-size: 0.78rem; color: var(--muted); margin-bottom: 0.35rem; display: block; }
.a11y-row { display: flex; gap: 0.4rem; }
.a11y-btn, .a11y-toggle-btn {
  flex: 1; padding: 0.5rem 0.4rem;
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  color: var(--text); font-size: 0.82rem; cursor: pointer; transition: border-color 0.15s; min-height: 2.5rem;
}
.a11y-toggle-btn { text-align: left; padding: 0.55rem 0.75rem; }
.a11y-btn:hover, .a11y-toggle-btn:hover,
.a11y-btn:focus-visible, .a11y-toggle-btn:focus-visible {
  border-color: var(--accent); outline: 3px solid var(--accent); outline-offset: 2px;
}
.a11y-toggle-btn[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
.a11y-reset-all {
  display: block; width: 100%; margin-top: 0.75rem; padding: 0.55rem; min-height: 2.5rem;
  background: none; border: 1px solid var(--border); border-radius: var(--radius);
  color: var(--muted); font-size: 0.78rem; cursor: pointer; transition: border-color 0.15s;
}
.a11y-reset-all:hover { border-color: var(--danger); color: var(--danger); }

/* ── a11y overrides ──────────────────────────────────────── */
[data-a11y-contrast="high"] {
  --bg:#000; --bg-alt:#0a0a0a; --card:#111; --border:#fff;
  --text:#fff; --muted:#ccc; --sub:#ccc; --text-muted:#ccc; --text-sub:#ccc;
  --danger-bg:#1a0000; --accent-dim:rgba(176,110,243,0.2); --accent-muted:rgba(176,110,243,0.2);
}
[data-a11y-font="dyslexia"],
[data-a11y-font="dyslexia"] * {
  font-family: 'Comic Sans MS', Verdana, sans-serif !important;
  letter-spacing: 0.05em; word-spacing: 0.15em; line-height: 1.8;
}
[data-a11y-motion="reduce"] *,
[data-a11y-motion="reduce"] *::before,
[data-a11y-motion="reduce"] *::after {
  animation-duration: 0.001ms !important; transition-duration: 0.001ms !important;
}
[data-a11y-spacing="relaxed"],
[data-a11y-spacing="relaxed"] * { line-height: 2.2 !important; margin-bottom: 0.5em !important; }
[data-a11y-spacing="relaxed"] .nav-inner,
[data-a11y-spacing="relaxed"] .nav-inner * { margin-bottom: 0 !important; }
[data-a11y-letters="wide"],
[data-a11y-letters="wide"] * { letter-spacing: 0.14em !important; word-spacing: 0.2em !important; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important; transition-duration: 0.001ms !important;
  }
}
@media (prefers-contrast: more) {
  :root, [data-theme="dark"], [data-theme="light"] {
    --bg:#000; --bg-alt:#111; --border:#fff; --text:#fff; --muted:#ccc;
  }
}

/* ── footer ──────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border); padding: 1.25rem 0;
  background: var(--bg); margin-top: auto;
}
.footer-inner {
  padding: 0 1.5rem; display: flex; align-items: center;
  justify-content: space-between; flex-wrap: wrap; gap: 0.75rem;
  font-size: 0.82rem; color: var(--muted);
}
.footer-links { display: flex; gap: 1rem; }
.footer-links a { color: var(--muted); }
.footer-links a:hover { color: var(--accent); }
.footer-social { display: flex; gap: 0.4rem; }
.footer-social-btn {
  display: flex; align-items: center; justify-content: center;
  width: 2rem; height: 2rem;
  border: 1px solid var(--border); border-radius: var(--radius);
  color: var(--muted); transition: border-color 0.15s, color 0.15s;
}
.footer-social-btn:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.footer-social-btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* ── buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  border: 1px solid transparent; border-radius: var(--radius);
  font-size: 0.875rem; font-weight: 600; cursor: pointer;
  padding: 0.55rem 1.1rem; transition: background 0.15s, border-color 0.15s, opacity 0.15s;
  text-decoration: none; white-space: nowrap; line-height: 1.4;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hov); border-color: var(--accent-hov); }
.btn-secondary { background: var(--accent-2); color: #fff; border-color: var(--accent-2); }
.btn-secondary:hover { background: var(--accent-2-hov); border-color: var(--accent-2-hov); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--muted); }
.btn-ghost:hover { border-color: var(--accent); color: var(--text); }
.btn-sm { font-size: 0.78rem; padding: 0.3rem 0.7rem; }

/* ── landing page sections ───────────────────────────────── */
.hero { text-align: center; padding: 4rem 1.25rem 3rem; }
.hero-eyebrow {
  display: inline-block; font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent);
  background: var(--accent-dim); border: 1px solid var(--accent);
  border-radius: 999px; padding: 0.25rem 0.8rem; margin-bottom: 1.25rem;
}
.hero h1 {
  font-size: clamp(1.75rem, 5vw, 3rem); font-weight: 800; line-height: 1.2;
  margin-bottom: 1rem; max-width: 680px; margin-left: auto; margin-right: auto;
}
.hero h1 span { color: var(--accent); }
.hero-sub {
  font-size: 1rem; color: var(--muted);
  max-width: 520px; margin: 0 auto 2rem; line-height: 1.7;
}
.hero-cta { display: flex; align-items: center; justify-content: center; gap: 0.75rem; flex-wrap: wrap; }
.hero-note { font-size: 0.78rem; color: var(--muted); margin-top: 0.85rem; }

.ethics {
  background: var(--card); border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border); padding: 1.75rem 0;
}
.ethics-inner {
  max-width: 960px; margin: 0 auto; padding: 0 1.25rem;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1.25rem;
}
.ethics-item    { display: flex; flex-direction: column; gap: 0.3rem; }
.ethics-marker  { width: 24px; height: 3px; background: var(--accent); border-radius: 2px; margin-bottom: 0.2rem; }
.ethics-heading { font-size: 0.85rem; font-weight: 700; }
.ethics-body    { font-size: 0.8rem; color: var(--muted); line-height: 1.5; }

.features, .how { padding: 3rem 0 3.5rem; border-top: 1px solid var(--border); }
.section-label {
  text-align: center; font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 0.5rem;
}
.section-title { text-align: center; font-size: clamp(1.25rem, 3vw, 1.75rem); font-weight: 700; margin-bottom: 0.4rem; }
.section-sub {
  text-align: center; color: var(--muted); font-size: 0.875rem; margin-bottom: 2rem;
  max-width: 520px; margin-left: auto; margin-right: auto;
}
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
@media (max-width: 900px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .feature-grid { grid-template-columns: 1fr; } }
.feature-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem;
}
.feature-cat   { font-size: 0.65rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.4rem; }
.feature-title { font-size: 0.9rem; font-weight: 700; margin-bottom: 0.35rem; }
.feature-desc  { font-size: 0.82rem; color: var(--muted); line-height: 1.6; margin: 0; }

.categories-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem;
  margin: 1.5rem auto 1rem;
  max-width: 720px;
}
.category-tag {
  --ph: 270;
  white-space: nowrap; font-size: 0.7rem; font-weight: 600;
  padding: 0.25rem 0.75rem; border-radius: 999px;
  border: 1px solid hsl(var(--ph), 55%, 40%);
  background: hsl(var(--ph), 60%, 28%);
  color: hsl(var(--ph), 90%, 88%);
}
[data-theme="light"] .category-tag {
  background: hsl(var(--ph), 65%, 90%);
  color: hsl(var(--ph), 70%, 22%);
  border-color: hsl(var(--ph), 50%, 65%);
}
.category-tag.swears            { --ph: 0;   }
.category-tag.threats           { --ph: 15;  }
.category-tag.slurs             { --ph: 30;  }
.category-tag.extremism         { --ph: 45;  }
.category-tag.drugs             { --ph: 60;  }
.category-tag.self_harm         { --ph: 75;  }
.category-tag.violence          { --ph: 90;  }
.category-tag.substance         { --ph: 105; }
.category-tag.bullying          { --ph: 120; }
.category-tag.sexual_content    { --ph: 135; }
.category-tag.grooming          { --ph: 150; }
.category-tag.truancy           { --ph: 165; }
.category-tag.algospeak         { --ph: 180; }
.category-tag.leetspeak         { --ph: 195; }
.category-tag.incel             { --ph: 202; }
.category-tag.far_right         { --ph: 210; }
.category-tag.far_left          { --ph: 225; }
.category-tag.sextortion        { --ph: 240; }
.category-tag.money_mule        { --ph: 255; }
.category-tag.conspiracy        { --ph: 270; }
.category-tag.suicidal_ideation { --ph: 285; }
.category-tag.image_abuse       { --ph: 300; }
.category-tag.domestic_abuse    { --ph: 315; }
.category-tag.bullying_victim   { --ph: 330; }
.category-tag.femcel            { --ph: 338; }
.category-tag.eating_disorder   { --ph: 345; }

/* Tech stack section */
.tech { padding: 3rem 0 3.5rem; border-top: 1px solid var(--border); }
.tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-top: 2rem; }
@media (max-width: 900px) { .tech-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .tech-grid { grid-template-columns: 1fr; } }
.tech-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.1rem 1.25rem;
}
.tech-card-label {
  font-size: 0.62rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 0.3rem;
}
.tech-card-name { font-size: 0.9rem; font-weight: 700; margin-bottom: 0.3rem; }
.tech-card-desc { font-size: 0.78rem; color: var(--muted); line-height: 1.55; margin: 0; }

.design-list { list-style: none; margin-top: 1.5rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; }
@media (max-width: 900px) { .design-list { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .design-list { grid-template-columns: 1fr; } }
.design-list li {
  display: flex; gap: 0.75rem; align-items: flex-start;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 0.85rem 1rem; font-size: 0.82rem; color: var(--muted);
}
.design-list li strong { display: block; color: var(--text); margin-bottom: 0.2rem; font-size: 0.85rem; }
.design-marker { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex-shrink: 0; margin-top: 0.35rem; }

.steps {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.75rem; margin-top: 2rem;
}
.step { padding: 1.5rem; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); }
.step-num {
  width: 32px; height: 32px; border-radius: 50%; background: var(--accent); color: #fff;
  font-weight: 800; font-size: 0.9rem; display: flex; align-items: center;
  justify-content: center; margin-bottom: 0.85rem;
}
.step-title { font-weight: 700; margin-bottom: 0.3rem; font-size: 0.9rem; }
.step-desc  { font-size: 0.82rem; color: var(--muted); line-height: 1.6; margin: 0; }

.demo-banner {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.25rem 1.5rem; margin-top: 2rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1.25rem; flex-wrap: wrap;
}
.demo-banner h3 { font-size: 0.9rem; font-weight: 700; margin-bottom: 0.25rem; }
.demo-banner p  { font-size: 0.82rem; color: var(--muted); margin: 0; }

.showcase { padding: 3.5rem 1.25rem; border-top: 1px solid var(--border); }
.showcase-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem; margin-top: 2rem;
}
.showcase-card {
  display: flex; flex-direction: column; gap: 0.5rem; padding: 1.25rem;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
}
.showcase-card-highlight { border-color: var(--accent); background: var(--accent-dim); }
.showcase-card-title { font-weight: 700; font-size: 0.95rem; }
.showcase-card-desc  { font-size: 0.82rem; color: var(--muted); flex: 1; line-height: 1.5; }
.showcase-btn        { align-self: flex-start; margin-top: 0.5rem; }

.cta-banner { padding: 3.5rem 1.25rem; text-align: center; border-top: 1px solid var(--border); }
.cta-banner h2 { font-size: 1.6rem; margin-bottom: 0.6rem; }
.cta-banner p  {
  color: var(--muted); font-size: 0.9rem; margin-bottom: 1.75rem;
  max-width: 440px; margin-left: auto; margin-right: auto;
}
.btn-row { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }
.section-label-spaced { margin-top: 2.5rem; }
.demo-banner-link { flex-shrink: 0; }

/* media section */
.media { padding: 3.5rem 1.25rem; border-top: 1px solid var(--border); }
.video-wrap {
  position: relative; width: 100%; padding-bottom: 56.25%;
  border-radius: var(--radius); overflow: hidden;
  margin: 2rem 0; background: var(--card); border: 1px solid var(--border);
}
.video-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.screenshots-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 1.5rem;
}
@media (max-width: 900px) { .screenshots-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .screenshots-grid { grid-template-columns: 1fr; } }
.screenshot-figure {
  margin: 0; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border); background: var(--card);
}
.screenshot-figure img { width: 100%; height: 200px; object-fit: cover; display: block; }
.screenshot-figure figcaption { padding: 0.5rem 0.75rem; font-size: 0.78rem; color: var(--muted); }

/* ── 4 purple button tones (both modes) ──────────────────── */
.btn-p1 { background: #b06ef3; color: #fff; border-color: #b06ef3; }
.btn-p1:hover { background: #9c4ee8; border-color: #9c4ee8; }
.btn-p2 { background: #7c3aed; color: #fff; border-color: #7c3aed; }
.btn-p2:hover { background: #6b21d6; border-color: #6b21d6; }
.btn-p3 { background: #4c1d95; color: #fff; border-color: #4c1d95; }
.btn-p3:hover { background: #3b1580; border-color: #3b1580; }
.btn-p4 { background: transparent; color: #7c3aed; border-color: #7c3aed; }
.btn-p4:hover { background: rgba(124,58,237,0.08); border-color: #4c1d95; }

/* gradient step numbers (both modes) */
.step-num {
  background: linear-gradient(135deg, #b06ef3, #7c3aed) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
  border-color: #4c1d95 !important;
}

/* ── dark mode only: per-section backgrounds + step cards ── */
[data-theme="dark"] .hero     { background: #0a0812; }
[data-theme="dark"] .ethics   { background: #100d1e; }
[data-theme="dark"] .features { background: #16102a; }
[data-theme="dark"] .how      { background: #1a1230; }
[data-theme="dark"] .tech     { background: #1a1230; }
[data-theme="dark"] .media    { background: #231a45; }
[data-theme="dark"] .showcase { background: #160f28; }
[data-theme="dark"] .cta-banner { background: #1a1230; border-top: 1px solid #2d1b69; }
[data-theme="dark"] .footer   { background: #05030d; border-top-color: #2d1b69; }

[data-theme="dark"] .steps .step:nth-child(1) { background: #3a2878; border-color: #5c40a8; }
[data-theme="dark"] .steps .step:nth-child(2) { background: #2c205c; border-color: #4c3388; }
[data-theme="dark"] .steps .step:nth-child(3) { background: #1e1640; border-color: #3a2570; }
[data-theme="dark"] .steps .step:nth-child(4) { background: #130d22; border-color: #2d1b69; }

/* ── dark mode card colour cycling (light → dark) ────────── */
[data-theme="dark"] .tech-card:nth-child(4n+1),
[data-theme="dark"] .showcase-card:nth-child(4n+1) { background: #3a2878; border-color: #5c40a8; }
[data-theme="dark"] .tech-card:nth-child(4n+2),
[data-theme="dark"] .showcase-card:nth-child(4n+2) { background: #2c205c; border-color: #4c3388; }
[data-theme="dark"] .tech-card:nth-child(4n+3),
[data-theme="dark"] .showcase-card:nth-child(4n+3) { background: #1e1640; border-color: #3a2570; }
[data-theme="dark"] .tech-card:nth-child(4n+4),
[data-theme="dark"] .showcase-card:nth-child(4n+4) { background: #130d22; border-color: #2d1b69; }

/* design-list: 6 smooth shades, no restart */
[data-theme="dark"] .design-list li:nth-child(1) { background: #3a2878; border-color: #5c40a8; }
[data-theme="dark"] .design-list li:nth-child(2) { background: #312270; border-color: #533a9a; }
[data-theme="dark"] .design-list li:nth-child(3) { background: #2c205c; border-color: #4c3388; }
[data-theme="dark"] .design-list li:nth-child(4) { background: #251b4e; border-color: #432c7a; }
[data-theme="dark"] .design-list li:nth-child(5) { background: #1e1640; border-color: #3a2570; }
[data-theme="dark"] .design-list li:nth-child(6) { background: #130d22; border-color: #2d1b69; }

/* light mode card colour cycling */
[data-theme="light"] .tech-card:nth-child(4n+1),
[data-theme="light"] .design-list li:nth-child(4n+1),
[data-theme="light"] .showcase-card:nth-child(4n+1) { background: #ede9fe; border-color: #c4b5fd; }

[data-theme="light"] .tech-card:nth-child(4n+2),
[data-theme="light"] .design-list li:nth-child(4n+2),
[data-theme="light"] .showcase-card:nth-child(4n+2) { background: #f5f0ff; border-color: #ddd6fe; }

[data-theme="light"] .tech-card:nth-child(4n+3),
[data-theme="light"] .design-list li:nth-child(4n+3),
[data-theme="light"] .showcase-card:nth-child(4n+3) { background: #e8deff; border-color: #c4b5fd; }

[data-theme="light"] .tech-card:nth-child(4n+4),
[data-theme="light"] .design-list li:nth-child(4n+4),
[data-theme="light"] .showcase-card:nth-child(4n+4) { background: #faf7ff; border-color: #e9d5ff; }

/* design-list and feature card icons */
.design-icon { width: 16px; height: 16px; flex-shrink: 0; margin-top: 0.2rem; color: var(--accent); }
.feature-icon { width: 14px; height: 14px; display: block; margin-bottom: 0.5rem; color: var(--accent); }

/* tech card logos */
.tech-card-logo { width: 2rem; height: 2rem; display: block; margin-bottom: 0.75rem; }
.tech-card-logos { display: flex; gap: 0.5rem; margin-bottom: 0.75rem; }
.tech-card-logos .tech-card-logo { margin-bottom: 0; }