/* ============================================
   AgenC — simple static rebuild
   No frameworks. Single stylesheet.
   ============================================ */

:root {
  --bg: #0a0c12;
  --bg-2: #10131c;
  --fg: #f1f3f8;
  --fg-2: rgba(241, 243, 248, 0.7);
  --fg-3: rgba(241, 243, 248, 0.45);
  --fg-4: rgba(241, 243, 248, 0.2);
  --border: rgba(255, 255, 255, 0.08);
  --border-2: rgba(255, 255, 255, 0.15);
  --primary: #ba63ef;     /* purple */
  --primary-2: #ff6a2f;   /* orange */
  --primary-glow: rgba(186, 99, 239, 0.45);
  --card-bg: rgba(255, 255, 255, 0.015);
  --card-bg-2: rgba(255, 255, 255, 0.025);
  --code-bg: #080c16;
  --max-w: 1200px;
  --radius: 6px;
  --radius-lg: 16px;
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 2px; }

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

/* Brand gradient layer (subtle ambient) */
.brand-gradient-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(800px 400px at 15% 10%, rgba(186, 99, 239, 0.08), transparent 60%),
    radial-gradient(700px 500px at 90% 80%, rgba(255, 106, 47, 0.06), transparent 60%);
}

/* ============================================
   Header
   ============================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  padding: 24px 0;
  transition: background 0.3s ease, backdrop-filter 0.3s ease, padding 0.3s ease;
}
.site-header.scrolled {
  padding: 14px 0;
  background: rgba(10, 12, 18, 0.65);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
}
.logo-mark { width: 28px; height: 28px; }
.logo-word {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.primary-nav {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 32px;
}
.primary-nav a {
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--fg-2);
  transition: color 0.15s ease;
}
.primary-nav a:hover { color: var(--fg); }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--fg);
  padding: 8px;
  cursor: pointer;
  position: relative;
}
.menu-toggle .icon-close { display: none; }
.menu-toggle[aria-expanded="true"] .icon-menu { display: none; }
.menu-toggle[aria-expanded="true"] .icon-close { display: block; }

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 16px 24px 20px;
  background: rgba(10, 12, 18, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.mobile-menu a {
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--fg-2);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu.open { display: flex; }

@media (max-width: 900px) {
  .primary-nav { display: none; }
  .menu-toggle { display: inline-flex; }
}

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 120px 16px 80px;
  text-align: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.hero-img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 30% center;
  opacity: 0.7;
  mix-blend-mode: screen;
  -webkit-mask-image: linear-gradient(90deg, #000 0%, #000 42%, rgba(0,0,0,0.78) 58%, rgba(0,0,0,0.22) 78%, transparent 96%);
          mask-image: linear-gradient(90deg, #000 0%, #000 42%, rgba(0,0,0,0.78) 58%, rgba(0,0,0,0.22) 78%, transparent 96%);
}
.hero-fade {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,0) 0%, rgba(10,12,18,0.08) 46%, rgba(16,17,22,0.34) 72%, rgba(16,17,22,0.82) 100%);
}
.hero-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 46% 44%, rgba(255,255,255,0.08), transparent 56%);
}

.hero-content { position: relative; z-index: 1; }
.hero-mark { margin-bottom: 36px; }
.hero-mark-svg {
  width: 80px; height: 80px;
  color: var(--fg);
  filter: drop-shadow(0 0 30px var(--primary-glow));
}
@media (min-width: 640px) { .hero-mark-svg { width: 112px; height: 112px; } }
@media (min-width: 768px) { .hero-mark-svg { width: 128px; height: 128px; } }

.hero-title {
  font-size: 2.75rem;
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 0.95;
  margin: 18px 0 0;
}
@media (min-width: 640px) { .hero-title { font-size: 3.75rem; } }
@media (min-width: 768px) { .hero-title { font-size: 4.5rem; } }
.text-white-90 { color: rgba(255,255,255,0.9); }

.hero-cta { margin-top: 56px; }

/* ============================================
   Pill (badge)
   ============================================ */
.pill {
  --poly: 6px;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  padding: 0 14px;
  font-size: 11px;
  letter-spacing: 0.14em;
  font-weight: 500;
  color: var(--fg-2);
  background: rgba(10, 12, 18, 0.45);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255,255,255,0.12);
  text-transform: uppercase;
  margin-bottom: 24px;
  clip-path: polygon(
    var(--poly) 0, calc(100% - var(--poly)) 0, 100% var(--poly),
    100% calc(100% - var(--poly)), calc(100% - var(--poly)) 100%,
    var(--poly) 100%, 0 calc(100% - var(--poly)), 0 var(--poly)
  );
}
.pill-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--primary);
  margin-right: 8px;
  box-shadow: 0 0 8px var(--primary-glow);
  position: relative;
  flex-shrink: 0;
}
.pill-dot::before {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.45;
  animation: liveRing 1.6s ease-out infinite;
}
@keyframes liveRing {
  0% { transform: scale(0.6); opacity: 0.45; }
  100% { transform: scale(2.4); opacity: 0; }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  --poly: 14px;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 18px 28px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg);
  background: rgba(10, 12, 18, 0.55);
  backdrop-filter: blur(6px);
  border: 1px solid var(--primary);
  cursor: pointer;
  text-decoration: none;
  transition: box-shadow 0.3s ease, transform 0.15s ease;
  clip-path: polygon(
    var(--poly) 0, calc(100% - var(--poly)) 0, 100% 0,
    100% calc(100% - var(--poly)), calc(100% - var(--poly)) 100%,
    0 100%, 0 calc(100% - var(--poly)), 0 var(--poly)
  );
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.08),
    inset 0 0 54px rgba(186, 99, 239, 0.26),
    0 0 30px rgba(186, 99, 239, 0.2);
}
.btn:hover {
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.14),
    inset 0 0 58px rgba(255, 106, 47, 0.26),
    0 0 34px rgba(255, 106, 47, 0.3);
}
.btn:active { transform: translateY(1px); }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border-2);
  color: var(--fg-2);
  box-shadow: none;
  padding: 12px 18px;
  font-size: 12px;
}
.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--fg);
  box-shadow: 0 0 0 1px rgba(186,99,239,0.2);
}

.row-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ============================================
   Sections
   ============================================ */
.section {
  position: relative;
  z-index: 1;
  padding: 80px 0;
}
@media (min-width: 768px) { .section { padding: 120px 0; } }
.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 14px;
}
.section-lead {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--fg-2);
  max-width: 720px;
  line-height: 1.6;
  margin: 0 0 40px;
}

/* ============================================
   Cards & Grids
   ============================================ */
.card-grid {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}
.card-grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.card-grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card-grid-5 { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }

.card {
  position: relative;
  padding: 24px;
  background: var(--card-bg);
  border: 1px solid rgba(255,255,255,0.08);
  border-left: 2px solid rgba(186,99,239,0.12);
  transition: border-color 0.3s ease, background 0.3s ease, transform 0.2s ease;
}
@media (min-width: 768px) { .card { padding: 32px; } }
.card:hover {
  background: var(--card-bg-2);
  border-left-color: rgba(186,99,239,0.5);
}
.card-link { display: block; }
.card-link:hover { transform: translateY(-2px); }
.card-eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  display: inline-block;
  margin-bottom: 12px;
}
.card-title {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  color: var(--fg);
  margin: 8px 0 10px;
  transition: color 0.3s ease;
}
.card-link:hover .card-title { color: var(--primary); }
.card-text {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--fg-2);
  line-height: 1.6;
  margin: 0;
}

.inline-code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  color: var(--primary);
  background: rgba(186, 99, 239, 0.08);
  padding: 1px 6px;
  border-radius: 3px;
}

/* ============================================
   Stats
   ============================================ */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 16px;
  margin-top: 40px;
  padding: 32px;
  background: var(--card-bg);
  border: 1px solid var(--border);
}
.stat { text-align: center; }
.stat-num {
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: -0.02em;
  font-family: var(--font-mono);
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-3);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-top: 4px;
}

/* ============================================
   Surface (boxed list)
   ============================================ */
.surface {
  margin-top: 24px;
  padding: 24px;
  background: var(--card-bg);
  border: 1px solid rgba(255,255,255,0.08);
}
@media (min-width: 768px) { .surface { padding: 32px; } }
.surface-title {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--fg);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin: 0 0 20px;
}
.surface-title-inline { margin: 0; }
.surface-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}
.surface-text {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--fg-2);
  line-height: 1.65;
  margin: 16px 0 0;
}
.inline-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary-glow);
}

.surface-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.ix-group h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--fg);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin: 0 0 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.ix-count {
  font-size: 10px;
  color: var(--primary);
  background: rgba(186, 99, 239, 0.1);
  padding: 2px 6px;
  border-radius: 3px;
}
.ix-group ul {
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-2);
  line-height: 1.8;
}
.ix-group ul li::before {
  content: "›";
  color: var(--primary);
  margin-right: 6px;
}

/* ============================================
   Tables
   ============================================ */
.table-wrap { overflow-x: auto; }
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 12.5px;
}
.data-table th,
.data-table td {
  text-align: left;
  padding: 12px 8px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.data-table th {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--fg-3);
  font-weight: 500;
}
.data-table td strong { color: var(--fg); font-weight: 500; }
.data-table tr:hover td { background: rgba(186, 99, 239, 0.04); }
.badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--primary);
  background: rgba(186, 99, 239, 0.12);
  padding: 2px 8px;
  border-radius: 3px;
}

/* ============================================
   Terminal
   ============================================ */
.terminal {
  margin-top: 24px;
  background: var(--code-bg);
  border: 1px solid rgba(255,255,255,0.12);
  overflow: hidden;
}
.terminal-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.01);
}
.terminal-head .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
}
.terminal-body {
  padding: 18px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.85;
  overflow-x: auto;
}
@media (min-width: 640px) { .terminal-body { padding: 22px; font-size: 13px; } }
.term-line { white-space: pre; color: var(--fg-2); }
.term-line:hover { background: rgba(186, 99, 239, 0.04); }
.syn-cmd { color: var(--primary); margin-right: 8px; }
.syn-comment { color: var(--fg-3); }
.terminal-inline { margin-top: 0; }

/* ============================================
   Flow steps
   ============================================ */
.flow-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.flow-step {
  padding: 20px;
  background: var(--card-bg-2);
  border: 1px solid var(--border);
}
.flow-num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--primary);
  margin-bottom: 8px;
}
.flow-step h4 {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--fg);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 0 0 10px;
}
.flow-step ul {
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--fg-2);
  line-height: 1.7;
}
.flow-step ul li::before { content: "·"; color: var(--primary); margin-right: 6px; }

/* ============================================
   Hardware grid
   ============================================ */
.hw-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  margin-bottom: 16px;
}
.hw-item {
  padding: 14px;
  background: var(--card-bg-2);
  border: 1px solid var(--border);
}
.hw-name {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--fg);
  margin-bottom: 4px;
}
.hw-spec {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--primary);
  opacity: 0.8;
}

/* ============================================
   Link grid (additional docs)
   ============================================ */
.link-grid {
  display: grid;
  gap: 6px 18px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.link-grid a {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-2);
  padding: 6px 0;
  transition: color 0.2s ease;
  display: inline-block;
}
.link-grid a:hover { color: var(--primary); }

/* ============================================
   Prerequisites
   ============================================ */
.prereq-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}
.prereq {
  padding: 16px;
  background: var(--card-bg-2);
  border: 1px solid var(--border);
}
.prereq-name {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg);
}
.prereq-ver {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--primary);
  opacity: 0.8;
  margin-top: 6px;
}

/* ============================================
   Chip row
   ============================================ */
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.chip {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--primary);
  background: rgba(186, 99, 239, 0.08);
  border: 1px solid rgba(186, 99, 239, 0.2);
  padding: 4px 10px;
  border-radius: 3px;
}

/* ============================================
   Social row (GitHub + X only)
   ============================================ */
.social-row {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  margin-top: 32px;
}
.social-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 28px 20px;
  background: var(--card-bg);
  border: 1px solid rgba(255,255,255,0.08);
  transition: border-color 0.3s ease, background 0.3s ease, transform 0.2s ease;
  text-align: center;
}
.social-card:hover {
  background: var(--card-bg-2);
  border-color: var(--primary);
  transform: translateY(-2px);
}
.social-icon {
  width: 28px;
  height: 28px;
  color: var(--fg);
  margin-bottom: 6px;
}
.social-card:hover .social-icon { color: var(--primary); }
.social-name {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--fg);
  font-weight: 500;
}
.social-handle {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-3);
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--fg-4);
  text-transform: uppercase;
  letter-spacing: 0.16em;
}
@media (min-width: 640px) {
  .site-footer { flex-direction: row; }
}

/* ============================================
   Reveal animation on scroll
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Mobile tuning
   ============================================ */
@media (max-width: 640px) {
  .hero { padding-top: 96px; }
  .hero-mark-svg { width: 80px; height: 80px; }
  .section { padding: 64px 0; }
  .stat-row { padding: 20px; }
  .stat-num { font-size: 2rem; }
  .btn { padding: 16px 22px; font-size: 12px; }
}