/* ==========================================================================
   OpenBrowser showcase site
   ========================================================================== */

:root {
  color-scheme: dark;

  --bg: #05070d;
  --bg-2: #0a0e1a;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-2: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.18);

  --text: #e9edf6;
  --text-muted: #9aa6bd;
  --text-faint: #66718a;

  --accent: #5b8dff;
  --accent-bright: #8ab0ff;
  --violet: #8b5cf6;
  --cyan: #22d3ee;
  --ok: #4ade80;
  --warn: #fbbf24;

  --radius: 16px;
  --radius-sm: 10px;

  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;

  --nav-h: 68px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 12px);
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: rgba(91, 141, 255, 0.35); color: #fff; }

a { color: var(--accent-bright); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1px 6px;
  white-space: nowrap;
}

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #232b3d; border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: #2f3a52; }

/* ---------- scroll progress ---------- */
.progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--violet), var(--cyan));
  z-index: 200;
  transition: width 0.1s linear;
}

/* ---------- nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), backdrop-filter 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.nav.scrolled {
  background: rgba(6, 9, 17, 0.78);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  backdrop-filter: blur(18px) saturate(1.4);
  border-color: var(--border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.nav-inner {
  width: min(1180px, 92vw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; opacity: 0.92; }

.brand-mark {
  width: 26px; height: 26px;
  color: var(--accent-bright);
  flex-shrink: 0;
}

.brand-version {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-faint);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 8px;
  background: var(--surface);
}

.nav-links {
  display: flex;
  gap: 4px;
  align-items: center;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 14.5px;
  font-weight: 500;
  padding: 8px 13px;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover {
  color: var(--text);
  background: var(--surface-2);
  text-decoration: none;
}

.nav-actions { display: flex; align-items: center; gap: 10px; }

.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px; height: 42px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  align-items: center;
}
.nav-burger span {
  width: 18px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.2s;
}
.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  z-index: 99;
  background: rgba(6, 9, 17, 0.97);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 14px 6vw 22px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  animation: menuIn 0.3s var(--ease);
}
.mobile-menu[hidden] { display: none; }

@keyframes menuIn {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

.mobile-menu a {
  color: var(--text);
  font-size: 17px;
  font-weight: 600;
  padding: 13px 10px;
  border-radius: 10px;
}
.mobile-menu a:hover { background: var(--surface-2); text-decoration: none; }
.mobile-menu .mobile-cta {
  margin-top: 10px;
  text-align: center;
  background: linear-gradient(135deg, var(--accent), var(--violet));
  color: #fff;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 15px;
  border-radius: 12px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s var(--ease), box-shadow 0.25s var(--ease), background 0.25s, border-color 0.25s, filter 0.2s;
  white-space: nowrap;
  text-decoration: none;
}
.btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-sm { padding: 9px 16px; font-size: 14px; }
.btn-lg { padding: 14px 26px; font-size: 16px; border-radius: 14px; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--violet) 100%);
  color: #fff;
  box-shadow: 0 6px 24px rgba(91, 141, 255, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}
.btn-primary:hover { box-shadow: 0 10px 34px rgba(91, 141, 255, 0.5); filter: brightness(1.06); }

.btn-ghost {
  background: var(--surface);
  border-color: var(--border-strong);
  color: var(--text);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { background: var(--surface-2); border-color: rgba(255, 255, 255, 0.3); }

.btn-glass {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.22);
  color: #fff;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.btn-glass:hover { background: rgba(255, 255, 255, 0.16); }

/* ---------- aurora background ---------- */
.aurora {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  will-change: transform;
}

.blob-a {
  width: 55vw; height: 55vw;
  min-width: 420px; min-height: 420px;
  background: radial-gradient(circle at 30% 30%, rgba(91, 141, 255, 0.55), transparent 65%);
  top: -18%;
  left: -12%;
  animation: driftA 26s ease-in-out infinite alternate;
}
.blob-b {
  width: 46vw; height: 46vw;
  min-width: 380px; min-height: 380px;
  background: radial-gradient(circle at 60% 40%, rgba(139, 92, 246, 0.5), transparent 65%);
  top: 8%;
  right: -14%;
  animation: driftB 32s ease-in-out infinite alternate;
}
.blob-c {
  width: 40vw; height: 40vw;
  min-width: 320px; min-height: 320px;
  background: radial-gradient(circle at 50% 50%, rgba(34, 211, 238, 0.32), transparent 65%);
  bottom: -22%;
  left: 28%;
  animation: driftC 38s ease-in-out infinite alternate;
}

@keyframes driftA {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(9vw, 7vh) scale(1.15); }
}
@keyframes driftB {
  from { transform: translate(0, 0) scale(1.1); }
  to { transform: translate(-8vw, 10vh) scale(0.95); }
}
@keyframes driftC {
  from { transform: translate(0, 0) scale(0.95); }
  to { transform: translate(6vw, -8vh) scale(1.12); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 90% 65% at 50% 30%, #000 20%, transparent 75%);
  mask-image: radial-gradient(ellipse 90% 65% at 50% 30%, #000 20%, transparent 75%);
}

.aurora-small { border-radius: inherit; }
.aurora-small .blob-a { top: -30%; left: -15%; }
.aurora-small .blob-b { top: -20%; right: -10%; }
.aurora-small .blob { opacity: 0.35; filter: blur(70px); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--nav-h) + 64px) 0 40px;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: min(900px, 92vw);
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.045);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: var(--text-muted);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: border-color 0.25s, transform 0.25s var(--ease);
  animation: badgeIn 0.8s var(--ease) both;
}
.hero-badge:hover { text-decoration: none; border-color: rgba(91, 141, 255, 0.6); transform: translateY(-1px); }
.hero-badge svg { width: 14px; height: 14px; color: var(--accent-bright); }

@keyframes badgeIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.pulse-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6);
  animation: pulse 2.2s infinite;
  flex-shrink: 0;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.55); }
  70% { box-shadow: 0 0 0 9px rgba(74, 222, 128, 0); }
  100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}

.hero-title {
  margin-top: 26px;
  font-size: clamp(40px, 6.4vw, 72px);
  line-height: 1.06;
  letter-spacing: -0.035em;
  font-weight: 800;
  animation: fadeUp 0.9s var(--ease) 0.1s both;
}

.grad-text {
  background: linear-gradient(100deg, var(--accent-bright) 0%, var(--violet) 45%, var(--cyan) 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: gradShift 8s ease-in-out infinite;
}
@keyframes gradShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero-sub {
  margin: 22px auto 0;
  max-width: 640px;
  color: var(--text-muted);
  font-size: clamp(16px, 1.6vw, 18.5px);
  animation: fadeUp 0.9s var(--ease) 0.2s both;
}

.hero-cta {
  margin-top: 34px;
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeUp 0.9s var(--ease) 0.3s both;
}

.hero-compat {
  margin-top: 40px;
  animation: fadeUp 0.9s var(--ease) 0.4s both;
}
.compat-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-faint);
  font-weight: 600;
}
.compat-row {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.compat-row span {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-muted);
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 6px 14px;
  border-radius: 999px;
  transition: border-color 0.25s, color 0.25s, transform 0.25s var(--ease);
}
.compat-row span:hover {
  border-color: rgba(91, 141, 255, 0.55);
  color: var(--text);
  transform: translateY(-2px);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- browser mockup ---------- */
.mock-shell {
  position: relative;
  z-index: 2;
  width: min(760px, 92vw);
  margin: 56px auto 0;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  background: linear-gradient(180deg, #0d1220, #090d18);
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(255, 255, 255, 0.03) inset,
    0 12px 60px rgba(91, 141, 255, 0.12);
  overflow: hidden;
  opacity: 0;
  transform: translateY(30px);
  animation: mockIn 1s var(--ease) 0.5s forwards;
}

@keyframes mockIn {
  from { opacity: 0; transform: translateY(34px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.mock-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}

.mock-dots { display: flex; gap: 7px; }
.mock-dots i {
  width: 11px; height: 11px;
  border-radius: 50%;
  display: block;
}
.mock-dots i:nth-child(1) { background: #ff5f57; }
.mock-dots i:nth-child(2) { background: #febc2e; }
.mock-dots i:nth-child(3) { background: #28c840; }

.mock-tab {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 5px 12px;
}
.mock-tab svg { width: 13px; height: 13px; color: var(--accent-bright); }

.mock-url {
  display: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  margin-left: auto;
}
.mock-lock { margin-right: 4px; font-size: 11px; }

.mock-body {
  position: relative;
  min-height: 336px;
  padding: 22px 24px 54px;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.85;
  color: #c9d4e8;
  white-space: pre-wrap;
}

.mock-code { font-family: inherit; font-size: inherit; }

.mock-caret {
  display: inline-block;
  width: 8px;
  height: 1.2em;
  background: var(--accent-bright);
  vertical-align: text-bottom;
  margin-left: 2px;
  animation: blink 0.9s steps(1) infinite;
  opacity: 0;
}
.mock-caret.visible { opacity: 1; }
@keyframes blink { 50% { opacity: 0; } }

.mock-pill {
  position: absolute;
  bottom: 16px; right: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ok);
  background: rgba(74, 222, 128, 0.09);
  border: 1px solid rgba(74, 222, 128, 0.3);
  border-radius: 999px;
  padding: 7px 15px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.mock-pill.show { opacity: 1; transform: translateY(0); }
.pill-icon { font-size: 13px; }

/* ---------- stats ---------- */
.hero-stats {
  position: relative;
  z-index: 2;
  width: min(960px, 92vw);
  margin: 54px auto 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  opacity: 0;
  animation: fadeUp 1s var(--ease) 0.9s forwards;
}

.stat {
  text-align: center;
  padding: 22px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: border-color 0.25s, background 0.25s, transform 0.25s var(--ease);
}
.stat:hover {
  border-color: rgba(91, 141, 255, 0.45);
  background: var(--surface-2);
  transform: translateY(-3px);
}

.stat-num {
  display: block;
  font-size: clamp(30px, 3.6vw, 42px);
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(120deg, var(--text) 20%, var(--accent-bright));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  display: block;
  margin-top: 5px;
  font-size: 13px;
  color: var(--text-muted);
}

/* ---------- sections ---------- */
.section {
  position: relative;
  padding: clamp(72px, 9vw, 120px) 0;
  scroll-margin-top: var(--nav-h);
}

.section-alt {
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(91, 141, 255, 0.06), transparent 70%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.015), rgba(255, 255, 255, 0.005));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-head {
  width: min(860px, 92vw);
  margin: 0 auto clamp(44px, 6vw, 70px);
  text-align: center;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-bright);
  background: rgba(91, 141, 255, 0.09);
  border: 1px solid rgba(91, 141, 255, 0.25);
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 18px;
}

.section-head h2 {
  font-size: clamp(30px, 4.6vw, 48px);
  line-height: 1.12;
  letter-spacing: -0.03em;
  font-weight: 800;
}

.section-sub {
  margin: 16px auto 0;
  max-width: 620px;
  color: var(--text-muted);
  font-size: 16.5px;
}

/* ---------- reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  transition-delay: calc(var(--d, 0) * 90ms);
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- feature grid ---------- */
.feature-grid {
  width: min(1100px, 92vw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.35s var(--ease), border-color 0.3s, background 0.3s, box-shadow 0.35s var(--ease);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(138, 176, 255, 0.5), transparent);
  opacity: 0;
  transition: opacity 0.35s;
}
.card:hover::before { opacity: 1; }

.feature:hover {
  transform: translateY(-6px);
  border-color: rgba(91, 141, 255, 0.4);
  background: var(--surface-2);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.feature-icon {
  width: 48px; height: 48px;
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(91, 141, 255, 0.12);
  border: 1px solid rgba(91, 141, 255, 0.3);
  color: var(--accent-bright);
  margin-bottom: 18px;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.feature:hover .feature-icon {
  transform: scale(1.08) rotate(-4deg);
  box-shadow: 0 8px 24px rgba(91, 141, 255, 0.3);
}
.feature-icon svg { width: 26px; height: 26px; }

.feature h3 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 9px;
}

.feature p {
  color: var(--text-muted);
  font-size: 14.5px;
  line-height: 1.65;
}

/* ---------- cost bars + terminal ---------- */
.snap-wrap {
  width: min(960px, 92vw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 22px;
  align-items: stretch;
}

.cost-bars {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 26px;
  padding: 24px 8px;
}

.cost-row {
  display: grid;
  grid-template-columns: 150px 1fr 150px;
  gap: 14px;
  align-items: center;
  font-size: 13px;
}
.cost-name { color: var(--text-muted); font-weight: 600; text-align: right; }
.cost-val { color: var(--text-faint); font-family: var(--font-mono); font-size: 12px; }

.cost-bar {
  height: 26px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 7px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  width: 0;
  border-radius: 6px;
  background: linear-gradient(90deg, #2c3a55, #46577c);
  transition: width 1.4s var(--ease) 0.2s;
}
.bar-fill.bar-accent {
  background: linear-gradient(90deg, var(--accent), var(--cyan));
  box-shadow: 0 0 18px rgba(91, 141, 255, 0.5);
}
.in-view .bar-fill { width: var(--w); }

.terminal {
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  overflow: hidden;
  background: #080c16;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}
.t-dots { display: flex; gap: 6px; }
.t-dots i { width: 10px; height: 10px; border-radius: 50%; background: #2b3245; }
.t-dots i:nth-child(1) { background: #ff5f57; }
.t-dots i:nth-child(2) { background: #febc2e; }
.t-dots i:nth-child(3) { background: #28c840; }
.t-title {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

.terminal-body {
  padding: 20px 22px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.9;
  overflow-x: auto;
  color: #c9d4e8;
  white-space: pre;
}
.terminal-body code { background: none; border: none; padding: 0; }
.c-dim { color: #5b6883; }

.terminal-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 22px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
}
.terminal-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ok);
  background: rgba(74, 222, 128, 0.09);
  border: 1px solid rgba(74, 222, 128, 0.3);
  padding: 4px 11px;
  border-radius: 999px;
}

/* ---------- tips ---------- */
.tip-grid {
  width: min(1100px, 92vw);
  margin: 26px auto 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.tip { padding: 24px; }
.tip h4 { font-size: 15.5px; margin-bottom: 7px; }
.tip p { color: var(--text-muted); font-size: 14px; }

/* ---------- architecture ---------- */
.arch {
  width: min(1080px, 94vw);
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(26px, 4vw, 48px) clamp(18px, 3vw, 40px);
  position: relative;
  overflow: hidden;
}

.arch::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, #000, transparent 75%);
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, #000, transparent 75%);
  pointer-events: none;
}

.arch-row {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1.4fr 1.2fr 1.4fr 1fr;
  align-items: center;
  gap: 8px;
}

.arch-node {
  position: relative;
  z-index: 2;
  text-align: center;
  background: linear-gradient(180deg, rgba(20, 27, 45, 0.9), rgba(12, 17, 31, 0.9));
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  padding: 18px 12px 16px;
  transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s var(--ease);
}
.arch-node:hover {
  transform: translateY(-4px);
  border-color: rgba(91, 141, 255, 0.5);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.4);
}

.arch-node-icon {
  width: 44px; height: 44px;
  margin: 0 auto 10px;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(91, 141, 255, 0.12);
  border: 1px solid rgba(91, 141, 255, 0.3);
  color: var(--accent-bright);
}
.arch-node-icon svg { width: 24px; height: 24px; }

.node-ext .arch-node-icon { background: rgba(74, 222, 128, 0.1); border-color: rgba(74, 222, 128, 0.35); color: var(--ok); }
.node-tabs .arch-node-icon { background: rgba(34, 211, 238, 0.1); border-color: rgba(34, 211, 238, 0.35); color: var(--cyan); }

.arch-node-name {
  font-weight: 700;
  font-size: 15px;
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
}
.arch-node-sub {
  margin-top: 4px;
  font-size: 11.5px;
  color: var(--text-faint);
  line-height: 1.5;
}

.arch-node-more {
  margin-top: 8px;
  font-size: 10.5px;
  color: var(--accent-bright);
  font-weight: 600;
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: opacity 0.3s, max-height 0.3s var(--ease);
}
.arch-node:hover .arch-node-more { opacity: 1; max-height: 30px; }

.arch-link {
  position: relative;
  text-align: center;
  min-width: 0;
}
.arch-link svg {
  width: 100%;
  height: 26px;
  display: block;
}
.dash-flow {
  stroke-dasharray: 10 10;
  animation: dashMove 1.2s linear infinite;
}
@keyframes dashMove {
  to { stroke-dashoffset: -20; }
}

.arch-link-label {
  position: absolute;
  left: 50%;
  bottom: -20px;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-faint);
  white-space: nowrap;
  background: var(--bg);
  padding: 0 8px;
  border-radius: 4px;
}

.arch-note {
  position: relative;
  z-index: 2;
  margin-top: 40px;
  text-align: center;
  font-size: 13.5px;
  color: var(--text-faint);
  font-family: var(--font-mono);
}

/* ---------- tool chips ---------- */
.tool-grid {
  width: min(1020px, 92vw);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.tool-chip {
  display: inline-flex;
  flex-direction: column;
  gap: 2px;
  align-items: flex-start;
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
  transition: transform 0.25s var(--ease), border-color 0.25s, background 0.25s, box-shadow 0.25s var(--ease);
  cursor: default;
}
.tool-chip:hover {
  transform: translateY(-3px) scale(1.02);
  border-color: rgba(91, 141, 255, 0.5);
  background: var(--surface-2);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
}
.tool-chip b { font-weight: 600; color: var(--accent-bright); }
.tool-chip i {
  font-style: normal;
  font-size: 11px;
  color: var(--text-faint);
  font-family: var(--font-sans);
}

/* ---------- capabilities ---------- */
.cap-list {
  width: min(900px, 92vw);
  margin: 0 auto;
}

.cap-row {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 20px;
  align-items: start;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left 0.35s var(--ease), background 0.35s, border-radius 0.35s;
}
.cap-row:last-child { border-bottom: none; }
.cap-row:hover {
  padding-left: 14px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-sm);
}

.cap-num {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-bright);
  border: 1px solid rgba(91, 141, 255, 0.3);
  background: rgba(91, 141, 255, 0.08);
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 11px;
}

.cap-body h3 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 8px;
}
.cap-body p { color: var(--text-muted); font-size: 15px; line-height: 1.7; }

.cap-tag {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-faint);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 12px;
  white-space: nowrap;
  background: var(--surface);
}

/* ---------- security ---------- */
.sec-grid {
  width: min(1100px, 92vw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.sec { padding: 26px; }
.sec:hover {
  transform: translateY(-5px);
  border-color: rgba(74, 222, 128, 0.35);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.4);
}

.sec-icon {
  width: 42px; height: 42px;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(74, 222, 128, 0.09);
  border: 1px solid rgba(74, 222, 128, 0.28);
  color: var(--ok);
  margin-bottom: 14px;
}
.sec-icon svg { width: 22px; height: 22px; }

.sec h3 { font-size: 16px; font-weight: 700; margin-bottom: 7px; }
.sec p { color: var(--text-muted); font-size: 14px; line-height: 1.65; }

.warn-band {
  width: min(1100px, 92vw);
  margin: 26px auto 0;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 22px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(251, 191, 36, 0.3);
  background: rgba(251, 191, 36, 0.06);
}
.warn-band svg { width: 20px; height: 20px; color: var(--warn); flex-shrink: 0; margin-top: 2px; }
.warn-band p { color: #d8c9a0; font-size: 14.5px; }

/* ---------- install ---------- */
.install-grid {
  width: min(1080px, 92vw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 26px;
  align-items: start;
}

.step-list { list-style: none; display: flex; flex-direction: column; gap: 22px; }

.step {
  display: flex;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  transition: transform 0.3s var(--ease), border-color 0.3s;
}
.step:hover {
  transform: translateX(6px);
  border-color: rgba(91, 141, 255, 0.4);
}

.step-num {
  flex-shrink: 0;
  width: 38px; height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  background: linear-gradient(135deg, var(--accent), var(--violet));
  color: #fff;
  box-shadow: 0 6px 18px rgba(91, 141, 255, 0.35);
}

.step h4 { font-size: 15.5px; font-weight: 700; margin-bottom: 4px; }
.step p { color: var(--text-muted); font-size: 13.5px; line-height: 1.6; }

.install-card { padding: 0; overflow: hidden; }

.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  padding: 6px 8px 0;
  gap: 2px;
}

.tab {
  flex: 1;
  border: none;
  background: none;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 13.5px;
  font-weight: 600;
  padding: 12px 10px;
  border-radius: 9px 9px 0 0;
  cursor: pointer;
  position: relative;
  transition: color 0.2s;
  white-space: nowrap;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--accent-bright); }
.tab.active::after {
  content: "";
  position: absolute;
  left: 12px; right: 12px; bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--violet));
}

.code-pane { display: none; }
.code-pane.active { display: block; animation: paneIn 0.3s var(--ease); }
@keyframes paneIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px 0;
}
.code-head > span {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-faint);
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  border-radius: 8px;
  padding: 6px 11px;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.copy-btn svg { width: 13px; height: 13px; }
.copy-btn:hover { color: var(--text); border-color: var(--border-strong); background: var(--surface-2); }
.copy-btn.copied { color: var(--ok); border-color: rgba(74, 222, 128, 0.4); background: rgba(74, 222, 128, 0.08); }

.install-code {
  padding: 16px 18px 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.8;
  overflow-x: auto;
  color: #c9d4e8;
  white-space: pre;
  background: #080c16;
  margin: 12px 12px 0;
  border-radius: 10px;
  border: 1px solid var(--border);
  min-height: 118px;
}
.install-code code { background: none; border: none; padding: 0; }

.install-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 14px 16px 16px;
}

.health-cmd {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-bright);
  background: rgba(91, 141, 255, 0.08);
  border: 1px solid rgba(91, 141, 255, 0.25);
  border-radius: 8px;
  padding: 7px 12px;
}

.health-ok {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 12.5px;
  color: var(--ok);
  font-weight: 600;
}

/* ---------- CTA ---------- */
.cta {
  position: relative;
  padding: clamp(60px, 8vw, 100px) 0;
}

.cta-card {
  position: relative;
  width: min(900px, 92vw);
  margin: 0 auto;
  text-align: center;
  padding: clamp(48px, 7vw, 84px) clamp(20px, 5vw, 60px);
  border-radius: 22px;
  border: 1px solid var(--border-strong);
  background: linear-gradient(180deg, rgba(20, 27, 45, 0.6), rgba(10, 14, 26, 0.8));
  overflow: hidden;
}

.cta-card h2 {
  position: relative;
  font-size: clamp(28px, 4.4vw, 46px);
  letter-spacing: -0.03em;
  font-weight: 800;
  line-height: 1.12;
}

.cta-card p {
  position: relative;
  margin: 16px auto 0;
  max-width: 520px;
  color: var(--text-muted);
  font-size: 16.5px;
}

.cta-buttons {
  position: relative;
  margin-top: 32px;
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 34px 0 42px;
  background: rgba(0, 0, 0, 0.25);
}

.footer-inner {
  width: min(1180px, 92vw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
}
.footer-brand .brand-mark { width: 22px; height: 22px; color: var(--accent-bright); }
.footer-brand p { font-size: 13.5px; }

.footer-links { display: flex; gap: 20px; }
.footer-links a { color: var(--text-muted); font-size: 14px; }
.footer-links a:hover { color: var(--text); }

.footer-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-faint);
}
.footer-meta a { color: var(--text-muted); }

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .sec-grid { grid-template-columns: repeat(2, 1fr); }
  .snap-wrap { grid-template-columns: 1fr; }
  .cost-bars { order: 2; }
}

@media (max-width: 860px) {
  .nav-links, .nav-ghost { display: none; }
  .nav-burger { display: flex; }

  .hero-stats { grid-template-columns: repeat(2, 1fr); }

  .arch-row {
    grid-template-columns: 1fr;
    gap: 34px;
    max-width: 420px;
    margin: 0 auto;
  }
  .arch-link { display: none; }
  .arch-node { display: grid; grid-template-columns: 44px 1fr; gap: 0 14px; text-align: left; align-items: center; padding: 14px 18px; }
  .arch-node-icon { margin: 0; grid-row: 1 / 3; }
  .arch-node-more { display: none; }
  .arch-node-sub { margin-top: 2px; }

  .install-grid { grid-template-columns: 1fr; }
  .cap-row { grid-template-columns: 48px 1fr; }
  .cap-tag { grid-column: 2; justify-self: start; }
  .cost-row { grid-template-columns: 120px 1fr 130px; }
}

@media (max-width: 620px) {
  :root { --nav-h: 60px; }

  .feature-grid { grid-template-columns: 1fr; }
  .tip-grid { grid-template-columns: 1fr; }
  .sec-grid { grid-template-columns: 1fr; }

  .mock-body { font-size: 12.5px; padding: 18px 16px 52px; }
  .mock-pill { left: 16px; right: 16px; justify-content: center; bottom: 13px; }

  .cost-row { grid-template-columns: 1fr; gap: 6px; text-align: center; }
  .cost-name { text-align: center; }

  .terminal-foot { flex-direction: column; align-items: flex-start; }

  .tabs { overflow-x: auto; }
  .tab { font-size: 12.5px; padding: 11px 8px; }

  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-links { flex-wrap: wrap; gap: 14px; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001s !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
  .mock-shell { opacity: 1; transform: none; }
  .bar-fill { width: var(--w); }
  .hero-badge, .hero-title, .hero-sub, .hero-cta, .hero-compat, .hero-stats { animation: none; opacity: 1; }
}