/* ════════════════════════════════════════════════════════════
   SMART HOME — premium dark style
   ════════════════════════════════════════════════════════════ */

:root {
  --bg: #0a0e14;
  --bg-soft: #0f141c;
  --surface: #131820;
  --surface-2: #1a212c;
  --surface-3: #232b38;
  --border: rgba(255, 255, 255, 0.06);
  --border-strong: rgba(255, 255, 255, 0.12);
  --text: #e8eef5;
  --text-soft: #aab4c2;
  --text-dim: #6b7686;
  --accent: #00e5ff;
  --accent-2: #7c3aed;
  --accent-glow: rgba(0, 229, 255, 0.35);
  --success: #22c55e;
  --warning: #fbbf24;
  --danger: #ef4444;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 60px var(--accent-glow);

  --container: 1200px;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul, ol { padding: 0; }
code {
  font-family: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  font-size: 0.9em;
  background: var(--surface-2);
  padding: 2px 7px;
  border-radius: 5px;
  border: 1px solid var(--border);
  color: var(--accent);
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.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;
}

.skip-link {
  position: absolute;
  top: -40px; left: 0;
  background: var(--accent);
  color: var(--bg);
  padding: 8px 16px;
  font-weight: 600;
  z-index: 100;
}
.skip-link:focus { top: 0; }

/* ─── HEADER ─── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(10, 14, 20, 0.72);
  border-bottom: 1px solid var(--border);
  transition: background 0.2s ease;
}
.site-header.is-scrolled { background: rgba(10, 14, 20, 0.92); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  font-size: 18px;
}
.brand-mark {
  width: 28px; height: 28px;
  background:
    radial-gradient(circle at 30% 30%, var(--accent), transparent 60%),
    linear-gradient(135deg, var(--accent-2), var(--accent));
  border-radius: 8px;
  position: relative;
  box-shadow: 0 0 12px var(--accent-glow);
}
.brand-mark::after {
  content: '';
  position: absolute;
  inset: 6px;
  background: var(--bg);
  border-radius: 4px;
}
.brand-name { letter-spacing: 1px; }
.brand-name-accent {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-left: 2px;
}

.nav-list {
  list-style: none;
  margin: 0;
  display: flex;
  gap: 4px;
}
.nav-list a {
  display: inline-block;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-soft);
  border-radius: 8px;
  transition: all 0.15s ease;
}
.nav-list a:hover {
  color: var(--text);
  background: var(--surface-2);
}
.nav-list a.is-active {
  color: var(--accent);
  background: rgba(0, 229, 255, 0.08);
}

.nav-toggle {
  display: none;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 40px; height: 40px;
  position: relative;
}
.nav-toggle-bars,
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  position: absolute;
  left: 50%;
  width: 18px;
  height: 2px;
  background: var(--text);
  transform: translateX(-50%);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle-bars { top: 50%; transform: translate(-50%, -50%); }
.nav-toggle-bars::before { content: ''; top: -6px; }
.nav-toggle-bars::after { content: ''; top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { top: 0; transform: translateX(-50%) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after { top: 0; transform: translateX(-50%) rotate(-45deg); }

@media (max-width: 880px) {
  .nav-toggle { display: block; }
  .nav-list {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    gap: 2px;
    padding: 12px 16px 20px;
    background: var(--bg-soft);
    border-bottom: 1px solid var(--border);
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.25s ease;
  }
  .nav-list.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-list a { padding: 12px 14px; font-size: 15px; }
}

/* ─── SECTIONS ─── */
.section {
  position: relative;
  padding: 96px 0;
}
.section-alt { background: var(--bg-soft); }
.section-header {
  margin-bottom: 56px;
  max-width: 760px;
}
.section-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent);
  margin: 0 0 12px;
}
.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 16px;
}
.section-lead {
  font-size: 18px;
  color: var(--text-soft);
  margin: 0;
}

/* ─── HERO ─── */
.section-hero {
  padding: 120px 0 96px;
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--text-soft);
  background: var(--surface);
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  margin: 0 0 24px;
}
.status-dot {
  width: 8px; height: 8px;
  background: var(--success);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--success);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-title {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 0 0 24px;
}
.grad-text {
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lead {
  font-size: 18px;
  color: var(--text-soft);
  margin: 0 0 32px;
  max-width: 560px;
}
.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  transition: all 0.15s ease;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #00b4d8);
  color: var(--bg);
  box-shadow: 0 8px 24px rgba(0, 229, 255, 0.25);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 229, 255, 0.4);
}
.btn-ghost {
  background: var(--surface);
  border-color: var(--border-strong);
  color: var(--text);
}
.btn-ghost:hover {
  background: var(--surface-2);
  border-color: var(--accent);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.stat:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}
.stat-num {
  display: block;
  font-size: 36px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
  font-feature-settings: 'tnum';
}
.stat-label {
  font-size: 13px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hero-glow {
  position: absolute;
  top: 20%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 65%);
  pointer-events: none;
  z-index: -1;
  filter: blur(40px);
  opacity: 0.5;
}

@media (max-width: 880px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}

/* ─── TIMELINE ─── */
.timeline {
  list-style: none;
  margin: 0;
  position: relative;
  padding-left: 24px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 8px; bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), transparent);
}
.timeline-item {
  position: relative;
  padding: 0 0 32px 28px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: -7px; top: 8px;
  width: 14px; height: 14px;
  background: var(--accent);
  border-radius: 50%;
  border: 3px solid var(--bg);
  box-shadow: 0 0 12px var(--accent-glow);
}
.timeline-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent);
  margin: 0 0 4px;
}
.timeline-content h3 {
  font-size: 20px;
  margin: 0 0 8px;
}
.timeline-content p:last-child {
  margin: 0;
  color: var(--text-soft);
}

/* ─── BLOG ─── */
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.post-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.2s ease;
}
.post-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow);
}
.post-card-link { display: block; height: 100%; color: inherit; }

.post-card-thumb {
  height: 180px;
  background:
    linear-gradient(135deg, rgba(0, 229, 255, 0.15), rgba(124, 58, 237, 0.15)),
    repeating-linear-gradient(
      45deg,
      transparent 0,
      transparent 10px,
      rgba(255, 255, 255, 0.02) 10px,
      rgba(255, 255, 255, 0.02) 20px
    );
  position: relative;
  border-bottom: 1px solid var(--border);
}
.post-card-thumb-soon {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
}
.post-card-badge {
  position: absolute;
  top: 16px; left: 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  padding: 5px 10px;
  background: var(--bg);
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 4px;
}
.post-card-thumb-soon .post-card-badge {
  border-color: var(--text-dim);
  color: var(--text-dim);
}

.post-card-body {
  padding: 24px;
}
.post-card-meta {
  font-size: 13px;
  color: var(--text-dim);
  margin: 0 0 8px;
}
.post-card-title {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 12px;
  line-height: 1.3;
}
.post-card-excerpt {
  font-size: 15px;
  color: var(--text-soft);
  margin: 0 0 16px;
}
.post-card-cta {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
}
.post-card-placeholder { opacity: 0.7; }
.post-card-placeholder:hover { transform: none; border-color: var(--border); box-shadow: none; }

/* ─── DASHBOARD DEVICES ─── */
.device-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 48px;
}
@media (max-width: 880px) {
  .device-grid { grid-template-columns: 1fr; }
}

.device-card {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px 24px;
  transition: border-color 0.2s ease;
}
.device-card:hover { border-color: var(--accent); }

.device-frame {
  margin: 0 auto 24px;
  background: var(--surface-3);
  position: relative;
}
.device-frame-monitor {
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: 6px;
  border: 8px solid var(--surface-3);
  box-shadow: 0 0 0 1px var(--border-strong);
}
.device-frame-laptop {
  width: 90%;
  aspect-ratio: 16 / 9;
  border-radius: 8px 8px 12px 12px;
  border: 6px solid var(--surface-3);
  box-shadow: 0 0 0 1px var(--border-strong);
  position: relative;
}
.device-frame-laptop::after {
  content: '';
  position: absolute;
  bottom: -10px; left: -20%;
  width: 140%; height: 6px;
  background: var(--surface-3);
  border-radius: 0 0 8px 8px;
}
.device-frame-rpi {
  width: 75%;
  aspect-ratio: 1024 / 600;
  border-radius: 4px;
  border: 14px solid var(--surface-3);
  box-shadow: 0 0 0 1px var(--border-strong);
}

.device-screen {
  width: 100%; height: 100%;
  background:
    linear-gradient(135deg, var(--accent-2) 0%, transparent 60%),
    linear-gradient(45deg, var(--accent) 0%, transparent 50%),
    var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.device-screen::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, transparent 0, transparent 4px, rgba(255,255,255,0.02) 4px, rgba(255,255,255,0.02) 5px);
  pointer-events: none;
}
.device-screen-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  color: var(--text);
  background: rgba(0, 0, 0, 0.5);
  padding: 6px 12px;
  border-radius: 6px;
  backdrop-filter: blur(4px);
}
.device-card figcaption h3 {
  font-size: 18px;
  margin: 0 0 8px;
}
.device-card figcaption p {
  font-size: 14px;
  color: var(--text-soft);
  margin: 0;
}

.gallery-empty {
  text-align: center;
  padding: 32px;
  background: var(--surface);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  color: var(--text-soft);
}

/* ─── CATEGORIES ─── */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.category-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: all 0.2s ease;
}
.category-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
}
.category-card-accent {
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.05), rgba(124, 58, 237, 0.05));
  border-color: rgba(0, 229, 255, 0.2);
}
.category-icon {
  display: inline-flex;
  width: 48px; height: 48px;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  background: var(--surface-2);
  border-radius: 12px;
  margin-bottom: 16px;
}
.category-card h3 {
  font-size: 18px;
  margin: 0 0 8px;
}
.category-card p {
  font-size: 14px;
  color: var(--text-soft);
  margin: 0;
}

/* ─── ARCHITEKTURA ─── */
.arch-flow {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
  margin-bottom: 48px;
}
.arch-node {
  flex: 1 0 140px;
  text-align: center;
  padding: 20px 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.arch-node-icon { font-size: 28px; margin-bottom: 8px; }
.arch-node-name {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 4px;
}
.arch-node-desc {
  font-size: 12px;
  color: var(--text-dim);
}
.arch-arrow {
  flex: 0 0 24px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  position: relative;
}
.arch-arrow::after {
  content: '';
  position: absolute;
  right: -2px; top: 50%;
  transform: translateY(-50%) rotate(45deg);
  width: 8px; height: 8px;
  border-top: 2px solid var(--accent-2);
  border-right: 2px solid var(--accent-2);
}
@media (max-width: 880px) {
  .arch-flow { flex-direction: column; padding: 24px 16px; }
  .arch-arrow {
    width: 2px; height: 24px;
    background: linear-gradient(180deg, var(--accent), var(--accent-2));
  }
  .arch-arrow::after {
    right: 50%; top: auto; bottom: -2px;
    transform: translateX(50%) rotate(135deg);
  }
}

.arch-principles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.principle {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.principle-tag {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  padding: 4px 10px;
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 4px;
  margin-bottom: 12px;
}
.principle p {
  font-size: 14px;
  color: var(--text-soft);
  margin: 0;
}

/* ─── AI BRAIN MODULES ─── */
.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.module-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s ease;
}
.module-card:hover { border-color: var(--accent-2); }
.module-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
}
.module-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.module-status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  padding: 3px 8px;
  border-radius: 3px;
}
.module-status-live {
  background: rgba(34, 197, 94, 0.1);
  color: var(--success);
  border: 1px solid var(--success);
}
.module-name {
  font-size: 13px;
  background: transparent;
  border: 0;
  padding: 0;
  color: var(--text-dim);
}
.module-card h3 {
  font-size: 18px;
  margin: 0 0 12px;
}
.module-card p {
  font-size: 14px;
  color: var(--text-soft);
  margin: 0;
}

/* ─── KONTAKT ─── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
}
.contact-card h3 {
  font-size: 18px;
  margin: 0 0 12px;
  color: var(--accent);
}
.contact-card p, .contact-card ul {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
}
.stack-list {
  list-style: none;
  display: grid;
  gap: 6px;
}
.stack-list li {
  padding: 6px 12px;
  background: var(--surface-2);
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
}

/* ─── FOOTER ─── */
.site-footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: center;
  font-size: 14px;
  color: var(--text-dim);
}
.footer-inner p { margin: 0; }
.footer-meta { font-size: 13px; opacity: 0.7; }

/* ─── POST PAGE ─── */
.post-page {
  padding: 80px 0;
}
.post-page-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-soft);
  margin-bottom: 32px;
  transition: color 0.15s ease;
}
.post-page-back:hover { color: var(--accent); }
.post-content {
  max-width: 720px;
  margin: 0 auto;
}
.post-content h1 {
  font-size: clamp(28px, 4vw, 44px);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 16px;
}
.post-content .post-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--text-dim);
  margin: 0 0 40px;
}
.post-content h2 {
  font-size: 26px;
  margin: 48px 0 16px;
  letter-spacing: -0.01em;
}
.post-content h3 {
  font-size: 20px;
  margin: 32px 0 12px;
}
.post-content p {
  font-size: 17px;
  color: var(--text-soft);
  margin: 0 0 20px;
}
.post-content ul, .post-content ol {
  margin: 0 0 20px;
  padding-left: 24px;
  color: var(--text-soft);
}
.post-content li { margin-bottom: 8px; }
.post-content blockquote {
  margin: 24px 0;
  padding: 20px 24px;
  background: var(--surface);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text);
  font-style: italic;
}
.post-content pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  overflow-x: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  line-height: 1.6;
  margin: 24px 0;
}
.post-content pre code {
  background: transparent;
  border: 0;
  padding: 0;
  color: var(--text);
}

@media (max-width: 600px) {
  .section { padding: 64px 0; }
  .section-hero { padding: 80px 0 64px; }
  .container { padding: 0 16px; }
}

/* ─── HARDWARE EVOLUTION (Homey 2019 → 2026) ─── */
.hw-evolution {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: stretch;
  margin-bottom: 64px;
}
@media (max-width: 880px) {
  .hw-evolution { grid-template-columns: 1fr; }
  .hw-evo-arrow { display: none; }
}
.hw-evo-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
}
.hw-evo-old {
  opacity: 0.7;
  border-style: dashed;
}
.hw-evo-new {
  border-color: var(--accent);
  box-shadow: 0 0 40px rgba(0, 229, 255, 0.1);
}
.hw-evo-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.hw-evo-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 4px 10px;
  background: var(--surface-2);
  border-radius: 4px;
  color: var(--text-dim);
}
.hw-evo-badge-current {
  background: rgba(34, 197, 94, 0.1);
  color: var(--success);
  border: 1px solid var(--success);
}
.hw-evo-card h3 {
  font-size: 22px;
  margin: 0;
}
.hw-evo-specs {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
}
.hw-evo-specs li {
  padding: 8px 0;
  font-size: 14px;
  color: var(--text-soft);
  border-bottom: 1px solid var(--border);
}
.hw-evo-specs li:last-child { border-bottom: 0; }
.hw-evo-issue {
  font-size: 14px;
  color: var(--text-soft);
  margin: 0;
  padding-top: 16px;
  border-top: 1px dashed var(--border);
}
.hw-evo-arrow {
  align-self: center;
  font-size: 32px;
  color: var(--accent);
  font-weight: 700;
}

/* ─── HW SECTION TITLES ─── */
.hw-section-title {
  font-size: 22px;
  margin: 48px 0 20px;
  letter-spacing: -0.01em;
}

/* ─── PROTOCOL GRID ─── */
.protocol-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}
.protocol-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.protocol-icon { font-size: 24px; }
.protocol-card h4 {
  font-size: 16px;
  margin: 8px 0;
  color: var(--accent);
}
.protocol-card p {
  font-size: 13px;
  color: var(--text-soft);
  margin: 0;
  line-height: 1.55;
}

/* ─── HW KEY LIST ─── */
.hw-key-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
}
.hw-key-item {
  background: var(--surface);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-size: 14px;
  color: var(--text-soft);
}
.hw-key-item strong { color: var(--text); }

/* ─── DASHBOARD GALLERY (real screenshots) ─── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}
.gallery-item {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.2s ease;
}
.gallery-item:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow);
}
.gallery-thumb {
  background: #000;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.gallery-item figcaption {
  padding: 18px 20px;
}
.gallery-item h3 {
  font-size: 16px;
  margin: 0 0 6px;
}
.gallery-item p {
  font-size: 13px;
  color: var(--text-soft);
  margin: 0;
}

/* ─── DASHBOARD EXTRA (features list) ─── */
.dashboard-extra {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}
.dashboard-extra h3 {
  font-size: 20px;
  margin: 0 0 20px;
}
.dashboard-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.dashboard-feat {
  font-size: 14px;
  color: var(--text-soft);
  padding: 12px 14px;
  background: var(--surface-2);
  border-radius: var(--radius-sm);
  border-left: 2px solid var(--accent);
}
.dashboard-feat strong {
  color: var(--text);
  display: block;
  margin-bottom: 4px;
}
.dashboard-note {
  font-size: 13px;
  color: var(--text-dim);
  margin: 0;
  padding-top: 16px;
  border-top: 1px dashed var(--border);
  font-style: italic;
}

/* ─── CHALLENGES (Výzvy) ─── */
.challenge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}
.challenge-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
  transition: border-color 0.2s ease;
}
.challenge-card:hover { border-color: var(--accent); }
.challenge-card.challenge-hw      { border-top: 3px solid #fbbf24; }
.challenge-card.challenge-runtime { border-top: 3px solid #ef4444; }
.challenge-card.challenge-data    { border-top: 3px solid var(--accent-2); }

.challenge-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.challenge-icon {
  font-size: 26px;
  background: var(--surface-2);
  width: 44px; height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
}
.challenge-card h3 {
  font-size: 17px;
  margin: 0;
  line-height: 1.3;
}
.challenge-card p {
  font-size: 14px;
  color: var(--text-soft);
  margin: 0 0 12px;
}
.challenge-card p:last-child { margin-bottom: 0; }

/* ─── ARCH RULES — extended ─── */
.arch-rules-title {
  font-size: 22px;
  margin: 48px 0 8px;
  letter-spacing: -0.01em;
}
.arch-rules-lead {
  color: var(--text-soft);
  margin: 0 0 24px;
  font-size: 15px;
}

/* ─── HW EVO LINK ─── */
.hw-evo-link {
  margin: auto 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--border);
}
.hw-evo-link a {
  font-size: 13px;
  color: var(--accent);
  text-decoration: none;
}
.hw-evo-link a:hover { text-decoration: underline; }

/* ─── FEATURE (deep-dive cards) ─── */
.feature {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 48px 0;
  border-top: 1px solid var(--border);
}
.feature:first-of-type { border-top: 0; padding-top: 24px; }
.feature-reverse { grid-template-columns: 1fr 1.5fr; }
.feature-reverse .feature-text { order: 2; }
.feature-reverse .feature-visual { order: 1; }
@media (max-width: 880px) {
  .feature, .feature-reverse { grid-template-columns: 1fr; gap: 24px; }
  .feature-reverse .feature-text, .feature-reverse .feature-visual { order: initial; }
}

.feature-badge {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  padding: 5px 10px;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 4px;
  margin-bottom: 16px;
}
.feature-text h3 {
  font-size: 26px;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
}
.feature-text h4 {
  font-size: 16px;
  margin: 24px 0 8px;
  color: var(--accent);
}
.feature-text p {
  font-size: 15px;
  color: var(--text-soft);
  margin: 0 0 12px;
}

.feature-list {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
}
.feature-list li {
  padding: 8px 0 8px 24px;
  font-size: 14px;
  color: var(--text-soft);
  position: relative;
}
.feature-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.feature-timeline {
  list-style: none;
  margin: 16px 0;
  padding: 0;
  border-left: 2px solid var(--accent);
}
.feature-timeline li {
  display: flex;
  gap: 16px;
  padding: 10px 0 10px 16px;
  font-size: 14px;
  position: relative;
}
.feature-timeline li::before {
  content: '';
  position: absolute;
  left: -7px; top: 18px;
  width: 12px; height: 12px;
  background: var(--accent);
  border-radius: 50%;
  border: 2px solid var(--bg);
}
.t-time {
  flex: 0 0 80px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
  font-weight: 600;
  font-size: 12px;
}
.t-act {
  flex: 1;
  color: var(--text-soft);
}

.feature-visual {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.feature-visual .diagram {
  width: 100%;
  height: auto;
}
.diagram-cap {
  font-size: 12px;
  color: var(--text-dim);
  text-align: center;
  margin: 12px 0 0;
  font-style: italic;
}

/* ─── DAY CLOCK ─── */
.day-clock { display: flex; align-items: center; justify-content: center; }
.day-clock-svg { max-width: 240px; }

/* ─── SIGNAL GRID (presence) ─── */
.signal-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 16px 0;
}
@media (min-width: 600px) {
  .signal-grid { grid-template-columns: repeat(3, 1fr); }
}
.signal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  position: relative;
}
.signal-num {
  position: absolute;
  top: -10px; left: 14px;
  background: var(--accent);
  color: var(--bg);
  font-weight: 800;
  font-size: 14px;
  width: 24px; height: 24px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.signal-card h4 {
  font-size: 15px;
  margin: 8px 0;
  color: var(--text);
}
.signal-card p {
  font-size: 13px;
  color: var(--text-soft);
  margin: 0 0 8px;
}
.signal-pros {
  font-size: 12px;
  color: var(--text-dim);
  border-top: 1px dashed var(--border);
  padding-top: 8px;
}

/* ─── AQARA CUBE FEATURE ─── */
.cube-uses {
  display: grid;
  gap: 20px;
  margin-top: 16px;
}
.cube-use {
  background: var(--surface);
  border-left: 3px solid var(--accent-2);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
}
.cube-use h4 {
  font-size: 15px;
  margin: 0 0 8px;
  color: var(--text);
}
.cube-use p {
  font-size: 14px;
  color: var(--text-soft);
  margin: 0 0 8px;
}

.scene-list {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 6px;
}
.scene-list li {
  font-size: 13px;
  color: var(--text-soft);
  padding: 4px 0;
}
.scene-emoji {
  display: inline-block;
  margin-right: 6px;
  font-size: 14px;
}

.cube-illust {
  width: 100%;
  max-width: 320px;
}

/* ─── INFRASTRUCTURE GRID ─── */
.infra-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.infra-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color 0.2s ease;
}
.infra-card:hover { border-color: var(--accent); }
.infra-card-finance {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.05), rgba(0, 229, 255, 0.05));
  border-color: rgba(124, 58, 237, 0.3);
}
.infra-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}
.infra-icon {
  font-size: 28px;
  width: 50px; height: 50px;
  background: var(--surface-2);
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.infra-card h3 {
  font-size: 18px;
  margin: 0;
}
.infra-card p {
  font-size: 14px;
  color: var(--text-soft);
  margin: 0 0 12px;
  line-height: 1.6;
}
.infra-list {
  list-style: none;
  padding: 0;
  margin: 0 0 12px;
}
.infra-list li {
  font-size: 13px;
  color: var(--text-soft);
  padding: 6px 0 6px 18px;
  position: relative;
}
.infra-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ─── INTENSITY TABLE ─── */
.intensity-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 13px;
}
.intensity-table thead th {
  text-align: left;
  padding: 10px 12px;
  background: var(--surface-2);
  color: var(--accent);
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}
.intensity-table tbody td {
  padding: 10px 12px;
  color: var(--text-soft);
  border-bottom: 1px solid var(--border);
}
.intensity-table tbody td:first-child {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text);
}
.intensity-table tbody tr:hover { background: var(--surface-2); }

/* ─── PRODUCT PHOTOS (with attribution) ─── */
.hw-evo-photo, .product-photo {
  margin: 16px 0;
  background: linear-gradient(135deg, var(--surface-2), var(--bg-soft));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
}
.hw-evo-photo img, .product-photo img {
  max-width: 100%;
  max-height: 220px;
  width: auto;
  height: auto;
  margin: 0 auto;
  filter: drop-shadow(0 8px 24px rgba(0,0,0,0.4));
}
.product-photo img { max-height: 280px; }
.hw-evo-photo figcaption, .product-photo figcaption {
  margin-top: 12px;
  font-size: 11px;
  color: var(--text-dim);
  font-style: italic;
}
.hw-evo-spec-title {
  font-size: 13px;
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent);
  margin: 16px 0 8px;
}

/* ─── ZOOMABLE IMAGES + LIGHTBOX ─── */
img.zoomable { cursor: zoom-in; transition: opacity 0.15s ease; }
img.zoomable:hover { opacity: 0.85; }
.zoom-hint {
  position: absolute;
  bottom: 8px; right: 8px;
  background: rgba(0,0,0,0.7);
  color: var(--accent);
  padding: 4px 10px;
  font-size: 11px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease;
}
.gallery-thumb { position: relative; cursor: zoom-in; }
.gallery-item:hover .zoom-hint { opacity: 1; }

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(5, 8, 12, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 40px;
}
.lightbox.is-open { display: flex; }
.lightbox-img {
  max-width: 95vw;
  max-height: 85vh;
  width: auto;
  height: auto;
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
  cursor: zoom-out;
}
.lightbox-cap {
  margin-top: 16px;
  color: var(--text-soft);
  font-size: 14px;
  text-align: center;
  max-width: 80vw;
}
.lightbox-close {
  position: absolute;
  top: 20px; right: 24px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  color: var(--text);
  width: 44px; height: 44px;
  border-radius: 50%;
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  transition: all 0.15s ease;
}
.lightbox-close:hover {
  background: var(--accent);
  color: var(--bg);
  transform: rotate(90deg);
}

/* ─── FEATURE FULLWIDTH (presence single column) ─── */
.feature-fullwidth {
  display: block;
  padding: 48px 0;
  border-top: 1px solid var(--border);
}
.feature-fullwidth-intro {
  max-width: 760px;
  margin-bottom: 32px;
}
.feature-fullwidth-intro h3 {
  font-size: 26px;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
}
.feature-fullwidth-intro p {
  font-size: 15px;
  color: var(--text-soft);
  margin: 0;
}
.feature-fullwidth-note {
  font-size: 15px;
  color: var(--text-soft);
  margin: 32px 0 0;
  max-width: 760px;
}

/* Wide signal grid (for fullwidth feature) */
.signal-grid-wide {
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .signal-grid-wide { grid-template-columns: repeat(3, 1fr); }
}
.signal-grid-wide .signal-card {
  padding: 28px 24px 20px;
}
.signal-grid-wide .signal-card h4 {
  font-size: 17px;
  margin-bottom: 10px;
}
.signal-grid-wide .signal-card p {
  font-size: 14px;
  line-height: 1.6;
}

/* ─── HOME GRID (subpage navigation cards) ─── */
.home-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.home-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
}
.home-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 12px 32px rgba(0, 229, 255, 0.15);
}
.home-card h3 {
  font-size: 20px;
  margin: 0 0 8px;
  color: var(--text);
}
.home-card p {
  font-size: 14px;
  color: var(--text-soft);
  margin: 0 0 16px;
  line-height: 1.6;
}
.home-card-cta {
  font-size: 13px;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
}

/* ──────────────────────────────────────────────────────────
   PHASE A — Mega-menu navigation (4 pillars + standalones)
   ────────────────────────────────────────────────────────── */
.has-mega { position: relative; }
.has-mega > .mega-trigger { display: inline-flex; align-items: center; gap: 4px; }
.has-mega > .mega-trigger::after {
  content: '';
  width: 6px; height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  opacity: 0.55;
  transition: transform 0.2s ease;
}
.has-mega:hover > .mega-trigger::after,
.has-mega:focus-within > .mega-trigger::after {
  transform: rotate(225deg) translateY(0);
  opacity: 0.9;
}

.mega-panel {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  min-width: 520px;
  max-width: 640px;
  padding: 14px;
  background: rgba(13, 18, 26, 0.96);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.55);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
  z-index: 60;
}
.has-mega::before {
  /* invisible bridge so cursor can travel from trigger to panel */
  content: '';
  position: absolute;
  top: 100%;
  left: 0; right: 0;
  height: 14px;
}
.has-mega:hover > .mega-panel,
.has-mega:focus-within > .mega-panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.mega-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
}
.mega-grid a {
  display: block;
  padding: 12px 14px;
  border-radius: 10px;
  background: transparent;
  transition: background 0.15s ease, transform 0.15s ease;
}
.mega-grid a:hover {
  background: var(--surface-2);
  transform: translateY(-1px);
}
.mega-grid a[aria-current="page"] {
  background: rgba(0, 229, 255, 0.08);
}
.mega-grid strong {
  display: block;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 3px;
}
.mega-grid span {
  display: block;
  color: var(--text-soft);
  font-size: 12px;
  line-height: 1.45;
}

/* ─── HUB pillar hero (prozivani, pribeh) ─── */
.hub-hero { padding-top: 60px; padding-bottom: 40px; }
.hub-hero .hero-title { font-size: clamp(32px, 5vw, 52px); margin-top: 12px; }
.hub-hero .hero-lead { max-width: 720px; margin-top: 16px; }

/* ─── Pillar cards on homepage (bigger, iconified) ─── */
.home-grid-pillars {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.home-card-pillar {
  position: relative;
  padding: 28px 24px 24px;
}
.home-card-icon {
  display: inline-block;
  font-size: 32px;
  line-height: 1;
  margin-bottom: 14px;
  filter: drop-shadow(0 4px 12px rgba(0, 229, 255, 0.25));
}
.home-card-pillar h3 {
  font-size: 20px;
  margin-bottom: 8px;
}
.home-foot {
  margin-top: 28px;
  text-align: center;
  font-size: 14px;
  color: var(--text-soft);
}
.home-foot a {
  color: var(--accent);
  font-weight: 500;
}
.home-foot a:hover { text-decoration: underline; }

/* ─── Mobile: mega expands inline (no dropdown) ─── */
@media (max-width: 880px) {
  .has-mega::before { display: none; }
  .mega-panel {
    position: static;
    transform: none;
    min-width: 0;
    max-width: none;
    margin: 4px 0 8px 12px;
    padding: 4px 0 4px 12px;
    background: transparent;
    border: 0;
    box-shadow: none;
    border-left: 2px solid var(--border);
    border-radius: 0;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  .mega-grid { grid-template-columns: 1fr; gap: 2px; }
  .mega-grid a { padding: 8px 10px; }
  .has-mega > .mega-trigger::after { display: none; }
}

/* ──────────────────────────────────────────────────────────
   PHASE B — Use-case detail page styling
   (topeni-klima.html and future svetla / audio / etc.)
   ────────────────────────────────────────────────────────── */

/* Bigger hero for use-case landing */
.uc-hero { padding-top: 60px; padding-bottom: 60px; }
.uc-hero .hero-title {
  font-size: clamp(36px, 5.5vw, 60px);
  margin-top: 16px;
  line-height: 1.05;
}
.uc-hero .hero-lead {
  max-width: 680px;
  margin-top: 18px;
  font-size: 17px;
}

/* Stats row in use-case hero (4 inline cards) */
.uc-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}
.uc-stat {
  flex: 1 1 140px;
  min-width: 140px;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.uc-stat-num {
  font-size: 28px;
  font-weight: 700;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-family: 'JetBrains Mono', monospace;
}
.uc-stat-label {
  font-size: 11px;
  color: var(--text-soft);
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

/* Wider readable prose */
.uc-prose {
  max-width: 720px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.7;
}
.uc-prose p { margin-bottom: 16px; }
.uc-prose strong { color: var(--text); }

/* DENNÍ PROVOZ — timeline */
.uc-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.uc-stage {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 22px 20px;
  position: relative;
}
.uc-stage::before {
  content: '';
  position: absolute;
  top: 0; left: 22px; right: 22px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 0 0 3px 3px;
}
.uc-stage-time {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 8px;
  padding: 3px 10px;
  background: rgba(0, 229, 255, 0.08);
  border-radius: 6px;
}
.uc-stage h3 { margin-bottom: 8px; font-size: 18px; }
.uc-stage p { font-size: 14px; color: var(--text-soft); line-height: 1.55; }

/* SCÉNY grid */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.scene-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.scene-card:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 229, 255, 0.35);
}
.scene-icon {
  display: inline-block;
  font-size: 28px;
  line-height: 1;
  margin-bottom: 12px;
  filter: drop-shadow(0 4px 10px rgba(0, 229, 255, 0.2));
}
.scene-card h3 { margin-bottom: 8px; font-size: 17px; }
.scene-card p { font-size: 13.5px; color: var(--text-soft); line-height: 1.55; }

/* HARDWARE grid */
.hw-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}
.hw-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.hw-icon {
  font-size: 32px;
  line-height: 1;
  margin-bottom: 4px;
}
.hw-card h3 {
  font-size: 17px;
  margin-bottom: 0;
}
.hw-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  color: var(--accent);
  letter-spacing: 0.4px;
  margin-bottom: 6px;
}
.hw-card > p:not(.hw-tag) {
  font-size: 13.5px;
  color: var(--text-soft);
  line-height: 1.6;
}
.hw-future {
  opacity: 0.78;
  border-style: dashed;
}
.hw-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.6px;
  padding: 2px 8px;
  margin-left: 8px;
  background: rgba(124, 58, 237, 0.18);
  color: #b794f6;
  border-radius: 4px;
  vertical-align: middle;
  text-transform: uppercase;
}

/* TECH details — collapsible */
.uc-tech {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.uc-tech details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  transition: border-color 0.18s ease;
}
.uc-tech details[open] {
  border-color: rgba(0, 229, 255, 0.35);
}
.uc-tech summary {
  cursor: pointer;
  padding: 16px 20px;
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.uc-tech summary::-webkit-details-marker { display: none; }
.uc-tech summary::after {
  content: '+';
  font-family: 'JetBrains Mono', monospace;
  font-size: 20px;
  color: var(--accent);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}
.uc-tech details[open] summary::after {
  content: '−';
}
.uc-tech details > *:not(summary) {
  padding: 0 20px 18px;
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.65;
}
.uc-tech details ul {
  margin: 0 0 8px 18px;
  padding: 0;
}
.uc-tech details li { margin-bottom: 8px; }
.uc-tech details code {
  font-size: 12.5px;
  padding: 1px 6px;
  background: rgba(0, 229, 255, 0.08);
  color: var(--accent);
  border-radius: 4px;
}
.uc-tech details strong { color: var(--text); }

/* RELATED grid */
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}
.related-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 18px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.18s ease, transform 0.18s ease;
}
.related-card:hover {
  border-color: rgba(0, 229, 255, 0.35);
  transform: translateY(-1px);
}
.related-icon {
  font-size: 22px;
  line-height: 1;
  margin-bottom: 4px;
}
.related-card h3 {
  font-size: 15px;
  margin: 0;
  color: var(--text);
}
.related-card p {
  font-size: 12.5px;
  color: var(--text-soft);
  line-height: 1.5;
  margin: 0;
}

/* Mobile tweaks */
@media (max-width: 720px) {
  .uc-stats { gap: 8px; }
  .uc-stat { padding: 12px 14px; min-width: 120px; }
  .uc-stat-num { font-size: 22px; }
  .uc-timeline { gap: 12px; }
  .uc-stage { padding: 18px; }
}

/* ──────────────────────────────────────────────────────────
   PHASE G — Real dashboard screenshots
   ────────────────────────────────────────────────────────── */
.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 18px;
}
.screenshot-item {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.18s ease, transform 0.18s ease;
}
.screenshot-item:hover {
  border-color: rgba(0, 229, 255, 0.35);
  transform: translateY(-2px);
}
.screenshot-item img {
  width: 100%;
  height: auto;
  display: block;
  cursor: zoom-in;
  background: #0a0e14;
}
.screenshot-item figcaption {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.screenshot-item figcaption strong {
  font-size: 14px;
  color: var(--text);
  font-weight: 600;
}
.screenshot-item figcaption span {
  font-size: 12.5px;
  color: var(--text-soft);
  line-height: 1.55;
}

/* Inline screenshot embeds in use-case pages */
.uc-screenshot {
  margin: 32px 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
}
.uc-screenshot img {
  width: 100%;
  height: auto;
  display: block;
  cursor: zoom-in;
}
.uc-screenshot figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--text-soft);
  border-top: 1px solid var(--border);
  text-align: center;
  font-style: italic;
}

/* ─── V7.0 TEAM SECTION (2026-04-29) — role cards + pipeline diagram ─── */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin: 32px 0;
}
.team-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.team-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--card-accent, var(--accent));
  opacity: .85;
}
.team-card:hover {
  transform: translateY(-4px);
  border-color: var(--card-accent, var(--accent));
  box-shadow: 0 12px 32px rgba(0,0,0,.4);
}
.team-card-avatar {
  font-size: 48px;
  line-height: 1;
  margin-bottom: 16px;
  display: block;
}
.team-card-role {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--card-accent, var(--accent));
  margin: 0 0 6px;
}
.team-card h3 {
  font-size: 22px;
  margin: 0 0 14px;
  font-weight: 700;
}
.team-card-desc {
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.55;
  margin: 0 0 16px;
}
.team-card-roles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.team-card-roles li {
  font-size: 13px;
  color: var(--text);
  padding-left: 18px;
  position: relative;
}
.team-card-roles li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--card-accent, var(--accent));
  opacity: .8;
}

/* Per-card accent colours */
.team-card.tc-architect { --card-accent: #fbbf24; }
.team-card.tc-chatgpt   { --card-accent: #10a37f; }
.team-card.tc-claude    { --card-accent: #d97706; }
.team-card.tc-gemini    { --card-accent: #4285f4; }
.team-card.tc-cody      { --card-accent: #a78bfa; }

/* Hero badge for "Human + AI Co-Built System" */
.team-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, rgba(34,211,238,.12), rgba(167,139,250,.12));
  border: 1px solid var(--accent);
  padding: 10px 18px;
  border-radius: 999px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--accent);
  text-transform: uppercase;
  margin: 14px 0;
}
.team-badge::before { content: '🤝'; font-size: 16px; }

/* Pipeline diagram */
.pipeline {
  display: grid;
  gap: 0;
  margin: 32px 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 24px;
}
.pipeline-node {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 20px;
  align-items: center;
  padding: 14px 16px;
  background: rgba(255,255,255,.02);
  border: 1px solid var(--border);
  border-left: 4px solid var(--node-accent, var(--accent));
  border-radius: 8px;
  position: relative;
  margin-bottom: 28px;
}
.pipeline-node:last-child { margin-bottom: 0; }
.pipeline-node:not(:last-child)::after {
  content: '↓';
  position: absolute;
  bottom: -26px;
  left: 30px;
  transform: translateX(-50%);
  font-size: 20px;
  color: var(--node-accent, var(--accent));
  opacity: .7;
  font-family: 'JetBrains Mono', monospace;
}
.pipeline-icon {
  font-size: 32px;
  text-align: center;
  line-height: 1;
}
.pipeline-content strong {
  display: block;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}
.pipeline-content span {
  font-size: 13px;
  color: var(--text-soft);
}
.pipeline-node.pn-human   { --node-accent: #fbbf24; }
.pipeline-node.pn-chatgpt { --node-accent: #10a37f; }
.pipeline-node.pn-claude  { --node-accent: #d97706; }
.pipeline-node.pn-homey   { --node-accent: #22d3ee; }
.pipeline-node.pn-gemini  { --node-accent: #4285f4; }

/* ─── V7.0 JOURNEY SECTION — extended timeline + lessons + features ─── */
.journey-timeline {
  list-style: none;
  margin: 32px 0;
  padding-left: 32px;
  position: relative;
}
.journey-timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 12px; bottom: 12px;
  width: 3px;
  background: linear-gradient(180deg,
    #fbbf24 0%, #10a37f 25%, #d97706 50%, #22d3ee 75%, #4285f4 100%);
  border-radius: 2px;
}
.journey-item {
  position: relative;
  padding: 0 0 36px 32px;
}
.journey-item:last-child { padding-bottom: 0; }
.journey-item::before {
  content: '';
  position: absolute;
  left: -38px; top: 12px;
  width: 18px; height: 18px;
  background: var(--phase-accent, var(--accent));
  border-radius: 50%;
  border: 4px solid var(--bg);
  box-shadow: 0 0 14px var(--phase-accent, var(--accent));
}
.journey-phase {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--phase-accent, var(--accent));
  margin: 0 0 4px;
  font-weight: 700;
}
.journey-item h3 {
  font-size: 22px;
  margin: 0 0 10px;
  font-weight: 700;
}
.journey-item p {
  color: var(--text-soft);
  margin: 0;
  line-height: 1.6;
}
.journey-item.j1 { --phase-accent: #fbbf24; }
.journey-item.j2 { --phase-accent: #f59e0b; }
.journey-item.j3 { --phase-accent: #10a37f; }
.journey-item.j4 { --phase-accent: #06b6d4; }
.journey-item.j5 { --phase-accent: #22d3ee; }
.journey-item.j6 { --phase-accent: #a78bfa; }
.journey-item.j7 { --phase-accent: #4285f4; }

/* Lessons learned — accent danger box */
.lessons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin: 24px 0;
}
.lesson-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid #ef4444;
  border-radius: 8px;
  padding: 18px 20px;
  transition: transform .2s, border-color .2s;
}
.lesson-card:hover { transform: translateY(-2px); border-left-color: #f87171; }
.lesson-card h4 {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  color: #fca5a5;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: .5px;
}
.lesson-card p { margin: 0; color: var(--text-soft); font-size: 13px; line-height: 1.55; }

/* Feature cards (unique system features) */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin: 24px 0;
}
.feature-card {
  background: linear-gradient(135deg, var(--surface), rgba(34,211,238,.04));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
  position: relative;
  overflow: hidden;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: 0 10px 28px rgba(34,211,238,.15);
}
.feature-card-icon {
  font-size: 36px;
  margin-bottom: 16px;
  display: block;
  line-height: 1;
}
.feature-card h4 {
  font-size: 18px;
  margin: 0 0 10px;
  font-weight: 700;
}
.feature-card p {
  margin: 0;
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.55;
}

@media (max-width: 720px) {
  .pipeline-node { grid-template-columns: 50px 1fr; padding: 12px; }
  .pipeline-icon { font-size: 26px; }
  .journey-timeline { padding-left: 26px; }
  .journey-item { padding-left: 24px; }
  .journey-item::before { left: -32px; width: 14px; height: 14px; }
}

/* ─── V7.0 INDEX POLISH (2026-04-29) — hero showcase + metrics + roadmap + architecture + buildlog ─── */

/* HERO SHOWCASE — large dashboard screenshot + 3 thumbnails */
.hero-showcase {
  background: var(--bg-soft);
  padding: 32px 0 64px;
  border-bottom: 1px solid var(--border);
}
.showcase-header {
  text-align: center;
  margin-bottom: 24px;
}
.showcase-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--accent);
  margin: 0 0 6px;
}
.showcase-title {
  font-size: 28px;
  margin: 0;
  font-weight: 700;
}
.showcase-main {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
  margin: 0 0 20px;
  background: #000;
  position: relative;
}
.showcase-main img {
  width: 100%;
  height: auto;
  display: block;
}
.showcase-main::after {
  content: 'Dashboard V7 · 1920×1080';
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: rgba(10,14,20,.85);
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 4px;
  letter-spacing: .8px;
}
.showcase-thumbs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}
.showcase-thumb {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
  text-decoration: none;
  color: inherit;
  transition: transform .25s, border-color .25s, box-shadow .25s;
  position: relative;
}
.showcase-thumb:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 10px 30px rgba(34,211,238,.18);
}
.showcase-thumb img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
  border-bottom: 1px solid var(--border);
}
.showcase-thumb-label {
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.showcase-thumb-label::after {
  content: '→';
  color: var(--accent);
  font-size: 16px;
}
.showcase-cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 24px;
}
@media (max-width: 760px) {
  .showcase-thumbs { grid-template-columns: 1fr; }
}

/* LIVE METRICS PANEL */
.metrics-section { padding: 56px 0; }
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin: 24px 0 12px;
}
.metric-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px 20px;
  text-align: left;
  position: relative;
  overflow: hidden;
  transition: transform .25s, border-color .25s;
}
.metric-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
}
.metric-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--metric-accent, var(--accent));
  opacity: .85;
}
.metric-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--text-soft);
  margin: 0 0 8px;
}
.metric-value {
  font-size: 36px;
  font-weight: 700;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  letter-spacing: -.02em;
  line-height: 1;
  margin: 0 0 6px;
}
.metric-suffix {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-soft);
  margin-left: 4px;
}
.metric-meta {
  font-size: 12px;
  color: var(--text-soft);
  margin: 0;
}
.metric-card.m-health  { --metric-accent: #4ade80; }
.metric-card.m-flows   { --metric-accent: #22d3ee; }
.metric-card.m-scripts { --metric-accent: #a78bfa; }
.metric-card.m-devices { --metric-accent: #fbbf24; }
.metric-card.m-vars    { --metric-accent: #f472b6; }
.metric-card.m-anom    { --metric-accent: #f87171; }
.metric-snapshot-note {
  font-size: 12px;
  color: var(--text-soft);
  font-style: italic;
  text-align: center;
  margin: 12px 0 0;
}

/* WHAT MAKES THIS DIFFERENT */
.differentiator-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin: 24px 0;
}

/* ROADMAP — checklist with status dots */
.roadmap-list {
  list-style: none;
  margin: 24px auto 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 800px;
}
.roadmap-item {
  display: grid;
  grid-template-columns: 36px 1fr auto;
  gap: 14px;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 18px;
  transition: border-color .25s, transform .25s;
}
.roadmap-item:hover {
  border-color: var(--rm-accent, var(--accent));
  transform: translateX(4px);
}
.roadmap-icon {
  width: 36px; height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 18px;
  font-weight: 700;
  background: var(--rm-bg, var(--bg-soft));
  color: var(--rm-accent, var(--accent));
  border: 2px solid var(--rm-accent, var(--accent));
  font-family: 'JetBrains Mono', monospace;
}
.roadmap-content { display: flex; flex-direction: column; gap: 2px; }
.roadmap-title { font-size: 15px; font-weight: 600; color: var(--text); margin: 0; }
.roadmap-desc { font-size: 13px; color: var(--text-soft); margin: 0; }
.roadmap-status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--rm-accent, var(--accent));
  white-space: nowrap;
}
.roadmap-item.rm-done     { --rm-accent: #4ade80; --rm-bg: rgba(74,222,128,.08); }
.roadmap-item.rm-todo     { --rm-accent: #94a3b8; --rm-bg: rgba(148,163,184,.05); }
.roadmap-item.rm-progress { --rm-accent: #fbbf24; --rm-bg: rgba(251,191,36,.08); }

/* ARCHITECTURE VISUAL */
.arch-visual {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  margin: 24px 0;
  overflow: auto;
}
.arch-row {
  display: flex;
  align-items: stretch;
  gap: 0;
  min-width: max-content;
  justify-content: center;
}
.arch-node {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 18px 16px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-top: 3px solid var(--arch-accent, var(--accent));
  border-radius: 10px;
  min-width: 140px;
}
.arch-node-icon { font-size: 32px; margin-bottom: 8px; line-height: 1; }
.arch-node-name {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 13px;
  color: var(--arch-accent, var(--accent));
  letter-spacing: 1px;
  text-transform: uppercase;
  margin: 0 0 4px;
}
.arch-node-desc { font-size: 11px; color: var(--text-soft); line-height: 1.4; margin: 0; }
.arch-arrow {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  padding: 0 12px;
  color: var(--accent);
  font-size: 22px;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
}
.arch-node.an-flow    { --arch-accent: #22d3ee; }
.arch-node.an-script  { --arch-accent: #d97706; }
.arch-node.an-request { --arch-accent: #a78bfa; }
.arch-node.an-router  { --arch-accent: #4ade80; }
.arch-node.an-device  { --arch-accent: #fbbf24; }
.arch-caption {
  text-align: center;
  font-size: 13px;
  color: var(--text-soft);
  margin: 16px 0 0;
  font-style: italic;
}
@media (max-width: 760px) {
  .arch-visual { padding: 22px 14px; }
  .arch-row { flex-direction: column; align-items: stretch; }
  .arch-arrow { transform: rotate(90deg); padding: 8px 0; justify-content: center; }
  .arch-node { min-width: 0; }
}

/* BUILD LOG (blog page) */
.buildlog-list { display: flex; flex-direction: column; gap: 18px; margin: 32px 0; }
.buildlog-entry {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--bl-accent, var(--accent));
  border-radius: 10px;
  padding: 22px 26px;
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
.buildlog-entry:hover {
  transform: translateX(4px);
  box-shadow: 0 8px 24px rgba(0,0,0,.3);
  border-left-color: var(--accent);
}
.buildlog-meta {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin: 0 0 10px;
}
.buildlog-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text-soft);
  letter-spacing: .5px;
}
.buildlog-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  padding: 2px 8px;
  background: var(--bl-bg, rgba(34,211,238,.1));
  color: var(--bl-accent, var(--accent));
  border-radius: 4px;
  font-weight: 700;
}
.buildlog-entry h3 { font-size: 20px; margin: 0 0 10px; font-weight: 700; color: var(--text); }
.buildlog-entry p { margin: 0 0 10px; color: var(--text-soft); line-height: 1.55; }
.buildlog-entry p:last-child { margin-bottom: 0; }
.buildlog-entry ul { margin: 8px 0 0 18px; padding: 0; color: var(--text-soft); font-size: 14px; }
.buildlog-entry ul li { margin-bottom: 4px; }
.buildlog-entry code {
  background: var(--bg-soft);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--accent);
}
.buildlog-entry.bl-feature { --bl-accent: #22d3ee; --bl-bg: rgba(34,211,238,.1); }
.buildlog-entry.bl-fix     { --bl-accent: #ef4444; --bl-bg: rgba(239,68,68,.1); }
.buildlog-entry.bl-deploy  { --bl-accent: #4ade80; --bl-bg: rgba(74,222,128,.1); }
.buildlog-entry.bl-roadmap { --bl-accent: #a78bfa; --bl-bg: rgba(167,139,250,.1); }
.buildlog-entry.bl-perf    { --bl-accent: #fbbf24; --bl-bg: rgba(251,191,36,.1); }

/* ─── V8.0 DIGITAL TWIN (2026-04-30) — clickable floorplan + detail panel ─── */

.twin-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 24px;
  margin: 24px 0;
  align-items: start;
}
@media (max-width: 1024px) {
  .twin-layout { grid-template-columns: 1fr; }
}

/* Floorplan container — glass card */
.twin-floorplan {
  background: linear-gradient(135deg, rgba(34,211,238,.04), rgba(167,139,250,.04));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.twin-floorplan::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(at 30% 20%, rgba(34,211,238,.08), transparent 50%),
    radial-gradient(at 80% 70%, rgba(251,191,36,.06), transparent 60%);
  pointer-events: none;
}
.twin-floorplan-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}
.twin-floorplan-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--accent);
  margin: 0;
}
.twin-floorplan-meta {
  font-size: 12px;
  color: var(--text-soft);
  font-family: 'JetBrains Mono', monospace;
}
.twin-floorplan svg {
  width: 100%;
  height: auto;
  display: block;
  position: relative;
  z-index: 1;
}

/* Zone shapes inside SVG */
.twin-zone {
  fill: rgba(20,30,50,.6);
  stroke: rgba(120,160,200,.4);
  stroke-width: 2;
  cursor: pointer;
  transition: fill .25s, stroke .25s, filter .25s;
}
.twin-zone:hover {
  fill: rgba(34,211,238,.18);
  stroke: rgba(34,211,238,.9);
  filter: drop-shadow(0 0 12px rgba(34,211,238,.4));
}
.twin-zone.is-active {
  fill: rgba(74,222,128,.22);
  stroke: rgba(74,222,128,1);
  stroke-width: 3;
  filter: drop-shadow(0 0 16px rgba(74,222,128,.5));
}

.twin-zone-label {
  fill: var(--text);
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 14px;
  text-anchor: middle;
  pointer-events: none;
  user-select: none;
}
.twin-zone-icons {
  font-size: 16px;
  text-anchor: middle;
  pointer-events: none;
  user-select: none;
}
.twin-zone-count {
  fill: var(--text-soft);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-anchor: middle;
  pointer-events: none;
  user-select: none;
}

/* Legend */
.twin-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
}
.twin-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-soft);
  font-family: 'JetBrains Mono', monospace;
}
.twin-legend-item span:first-child {
  font-size: 16px;
}

/* Detail panel — glass */
.twin-detail {
  background: linear-gradient(135deg, rgba(20,30,50,.85), rgba(15,20,35,.85));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  position: sticky;
  top: 80px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  min-height: 500px;
}
@media (max-width: 1024px) {
  .twin-detail { position: static; min-height: auto; }
}
.twin-detail-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 8px;
}
.twin-detail-icon {
  width: 56px; height: 56px;
  background: var(--zone-accent, var(--accent));
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 28px;
  flex-shrink: 0;
  box-shadow: 0 0 24px var(--zone-glow, rgba(34,211,238,.3));
}
.twin-detail-name {
  font-size: 24px;
  font-weight: 700;
  margin: 0;
  color: var(--text);
}
.twin-detail-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--zone-accent, var(--accent));
  margin: 0 0 4px;
}
.twin-detail-desc {
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.55;
  margin: 14px 0 18px;
}

.twin-detail-section {
  border-top: 1px solid var(--border);
  padding-top: 14px;
  margin-top: 14px;
}
.twin-detail-section-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--text-soft);
  margin: 0 0 10px;
}

/* Device counts row */
.twin-counts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
  gap: 8px;
  margin: 0 0 6px;
}
.twin-count {
  background: rgba(255,255,255,.03);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 8px;
  text-align: center;
}
.twin-count-icon {
  font-size: 18px;
  line-height: 1;
  margin-bottom: 4px;
}
.twin-count-num {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  line-height: 1;
  margin: 0 0 2px;
}
.twin-count-label {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--text-soft);
  font-family: 'JetBrains Mono', monospace;
}

/* Device list */
.twin-device-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.twin-device-list li {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--text);
  margin-bottom: 4px;
  background: rgba(255,255,255,.02);
  border: 1px solid transparent;
  transition: border-color .2s, background .2s;
}
.twin-device-list li:hover {
  background: rgba(34,211,238,.06);
  border-color: rgba(34,211,238,.2);
}
.twin-device-icon {
  font-size: 16px;
  text-align: center;
}
.twin-device-name {
  color: var(--text);
  font-weight: 500;
}
.twin-device-status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--text-soft);
  text-transform: uppercase;
  letter-spacing: .5px;
}

/* Automation list */
.twin-auto-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.twin-auto-list li {
  font-size: 13px;
  color: var(--text-soft);
  padding: 4px 0;
  padding-left: 18px;
  position: relative;
  line-height: 1.4;
}
.twin-auto-list li::before {
  content: '⚡';
  position: absolute;
  left: 0;
  color: var(--zone-accent, var(--accent));
  opacity: .8;
  font-size: 11px;
  top: 5px;
}

/* Tag chips */
.twin-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}
.twin-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 3px 8px;
  background: var(--zone-bg, rgba(34,211,238,.08));
  color: var(--zone-accent, var(--accent));
  border-radius: 4px;
  font-weight: 700;
  border: 1px solid var(--zone-border, rgba(34,211,238,.2));
}

/* Read-only badge */
.twin-readonly-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: rgba(251,191,36,.08);
  border: 1px solid rgba(251,191,36,.3);
  border-radius: 8px;
  margin: 0 0 20px;
  font-size: 13px;
  color: #fde68a;
}
.twin-readonly-banner::before {
  content: '🔒';
  font-size: 18px;
}

/* Empty state */
.twin-detail-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-soft);
}
.twin-detail-empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: .5;
}
.twin-detail-empty p {
  margin: 8px 0;
  font-size: 14px;
}

/* Per-zone accent variables (set via JS on detail) */
.twin-detail.tz-open      { --zone-accent: #22d3ee; --zone-glow: rgba(34,211,238,.3); --zone-bg: rgba(34,211,238,.1); --zone-border: rgba(34,211,238,.3); }
.twin-detail.tz-bedroom   { --zone-accent: #a78bfa; --zone-glow: rgba(167,139,250,.3); --zone-bg: rgba(167,139,250,.1); --zone-border: rgba(167,139,250,.3); }
.twin-detail.tz-bathroom  { --zone-accent: #06b6d4; --zone-glow: rgba(6,182,212,.3); --zone-bg: rgba(6,182,212,.1); --zone-border: rgba(6,182,212,.3); }
.twin-detail.tz-toilet    { --zone-accent: #14b8a6; --zone-glow: rgba(20,184,166,.3); --zone-bg: rgba(20,184,166,.1); --zone-border: rgba(20,184,166,.3); }
.twin-detail.tz-laundry   { --zone-accent: #f59e0b; --zone-glow: rgba(245,158,11,.3); --zone-bg: rgba(245,158,11,.1); --zone-border: rgba(245,158,11,.3); }
.twin-detail.tz-office    { --zone-accent: #ec4899; --zone-glow: rgba(236,72,153,.3); --zone-bg: rgba(236,72,153,.1); --zone-border: rgba(236,72,153,.3); }
.twin-detail.tz-entry     { --zone-accent: #84cc16; --zone-glow: rgba(132,204,22,.3); --zone-bg: rgba(132,204,22,.1); --zone-border: rgba(132,204,22,.3); }