/* ─────────────────────────────────────────────────────────────────────────────
   Conduit - Landing Page
   Structure/spacing/hierarchy inspired by DESIGN.md (editorial pacing, pill CTAs,
   single-accent scarcity, dark hero band); colors are Conduit's own brand
   (purple #533AFD / orange #FF6118), not Coinbase's.
───────────────────────────────────────────────────────────────────────────── */

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

:root {
  --accent: #533AFD;
  --accent-hover: #6B52FF;
  --accent-subtle: rgba(83, 58, 253, 0.08);
  --accent-border: rgba(83, 58, 253, 0.25);
  --orange: #FF6118;

  --ink: #0a0b0d;
  --body: #5b616e;
  --muted: #7c828a;
  --hairline: #e4e6ea;
  --hairline-soft: #eef0f3;
  --canvas: #ffffff;
  --surface-soft: #f7f7f8;
  --surface-dark: #0a0a0f;
  --surface-dark-elevated: #15151d;
  --on-dark: #ffffff;
  --on-dark-soft: #a8acb3;

  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-section: 96px;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 100px;

  --shadow-soft: 0 4px 16px rgba(10, 10, 15, 0.06);
  --shadow-dark: 0 20px 60px rgba(0, 0, 0, 0.35);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", "SFMono-Regular", "Fira Mono", monospace;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
}

a { color: inherit; text-decoration: none; }
code {
  font-family: var(--mono);
  font-size: 0.875em;
  background: var(--hairline-soft);
  padding: 2px 6px;
  border-radius: 6px;
}

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ─── Nav ──────────────────────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 64px;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: -0.02em;
}
.nav-logo { width: 24px; height: 24px; }
.nav-links {
  display: flex;
  gap: var(--space-6);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--body);
}
.nav-links a { transition: color 0.15s; }
.nav-links a:hover { color: var(--ink); }
.nav-cta { flex-shrink: 0; }

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

/* ─── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 44px;
  padding: 0 var(--space-5);
  border-radius: var(--radius-pill);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s var(--ease-out), box-shadow 0.15s, background 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(83, 58, 253, 0.35);
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-secondary {
  background: var(--surface-soft);
  color: var(--ink);
  border-color: var(--hairline);
}
.btn-secondary:hover { border-color: var(--body); }
.btn-outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--hairline);
}
.btn-outline:hover { border-color: var(--body); background: var(--surface-soft); }

/* ─── Hero ─────────────────────────────────────────────────────────────────── */
.hero {
  background: var(--surface-dark);
  color: var(--on-dark);
  padding: var(--space-section) var(--space-6);
  overflow: hidden;
}
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-10);
  align-items: center;
}
.hero-copy {
  animation: fadeUp 0.6s var(--ease-out) backwards;
}
.badge-pill {
  display: inline-flex;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--on-dark-soft);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-5);
}
.hero h1 {
  font-size: 2.75rem;
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-5);
}
.hero-sub {
  font-size: 1.125rem;
  color: var(--on-dark-soft);
  line-height: 1.6;
  max-width: 560px;
  margin-bottom: var(--space-8);
}
.hero-actions { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.hero .btn-secondary { background: rgba(255,255,255,0.06); color: var(--on-dark); border-color: rgba(255,255,255,0.16); }
.hero .btn-secondary:hover { border-color: rgba(255,255,255,0.35); }
.hero-meta {
  margin-top: var(--space-6);
  display: flex;
  gap: var(--space-2);
  align-items: center;
  font-size: 0.8125rem;
  color: var(--on-dark-soft);
  flex-wrap: wrap;
}
.hero-meta .dot { opacity: 0.5; }

.hero-visual {
  animation: fadeUp 0.6s var(--ease-out) 0.1s backwards;
}
.terminal {
  background: var(--surface-dark-elevated);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-dark);
  overflow: hidden;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.terminal-bar .dot { width: 10px; height: 10px; border-radius: 50%; }
.terminal-bar .dot.red { background: #ff5f56; }
.terminal-bar .dot.yellow { background: #ffbd2e; }
.terminal-bar .dot.green { background: #27c93f; }
.terminal-title {
  margin-left: var(--space-3);
  font-size: 0.75rem;
  color: var(--on-dark-soft);
}
.terminal-body {
  padding: var(--space-5);
  font-family: var(--mono);
  font-size: 0.8125rem;
  line-height: 1.8;
  color: #d6e2ff;
  min-height: 220px;
  white-space: pre-wrap;
  word-break: break-word;
}
/* Reset the global inline-code style (background/padding/radius) for the
   terminal transcript — that styling is meant for prose snippets like
   <code>AuthConfig</code>, not this multi-line block. */
.terminal-body code {
  background: none;
  padding: 0;
  border-radius: 0;
  font-size: inherit;
  color: inherit;
}
.terminal-body .prompt { color: #8fb8ff; }
.cursor {
  display: inline-block;
  width: 7px;
  height: 15px;
  background: var(--accent);
  vertical-align: -2px;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2.1rem; }
}

/* ─── Sections ─────────────────────────────────────────────────────────────── */
.section { padding: var(--space-section) var(--space-6); }
.section-alt { background: var(--surface-soft); }
.section-dark { background: var(--surface-dark); color: var(--on-dark); }
.section-inner { max-width: 1200px; margin: 0 auto; }
.section-inner--narrow { max-width: 720px; text-align: center; }

.section h2 {
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
}
.section-lead {
  font-size: 1.0625rem;
  color: var(--body);
  max-width: 640px;
  margin-bottom: var(--space-8);
}
.section-lead--dark { color: var(--on-dark-soft); }

/* ─── Grids & Cards ────────────────────────────────────────────────────────── */
.grid { display: grid; gap: var(--space-5); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 860px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

.feature-card {
  background: var(--canvas);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s;
}
/* Content is visible by default; JS opts individual cards into a pre-reveal
   hidden state (see app.js) only for cards it can guarantee it will animate
   back in. This avoids permanently-invisible content if IntersectionObserver
   never fires (slow scroll, crawlers, screenshot tools). */
.feature-card.pre-reveal { opacity: 0; transform: translateY(10px); }
.feature-card.in-view {
  animation: fadeUp 0.5s var(--ease-out) forwards;
}
.feature-card:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(10,10,15,0.1); }
.feature-icon { font-size: 1.75rem; margin-bottom: var(--space-4); }
.feature-card h3 { font-size: 1.0625rem; font-weight: 600; margin-bottom: var(--space-2); letter-spacing: -0.01em; }
.feature-card p { color: var(--body); font-size: 0.9375rem; line-height: 1.6; }

.feature-card--flat { padding: var(--space-6); box-shadow: none; }

.compare-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}
.compare-card h3 { font-size: 1.0625rem; font-weight: 600; margin-bottom: var(--space-3); }
.compare-card p { color: var(--on-dark-soft); font-size: 0.9375rem; line-height: 1.6; }
.compare-card--accent { border-color: var(--accent-border); background: rgba(83,58,253,0.1); }

/* ─── Steps ────────────────────────────────────────────────────────────────── */
.steps { list-style: none; display: flex; flex-direction: column; gap: var(--space-6); max-width: 720px; }
.steps li { display: flex; gap: var(--space-5); align-items: flex-start; }
.step-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent-subtle);
  color: var(--accent);
  border: 1px solid var(--accent-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
}
.steps li div { color: var(--body); font-size: 0.9375rem; line-height: 1.6; padding-top: 4px; }
.steps li strong { color: var(--ink); }

/* ─── Code block ───────────────────────────────────────────────────────────── */
.code-block {
  background: var(--surface-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-align: left;
  box-shadow: var(--shadow-soft);
}
.code-block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) var(--space-5);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  color: var(--on-dark-soft);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.copy-btn {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  color: var(--on-dark);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
  text-transform: none;
  letter-spacing: 0;
}
.copy-btn:hover { background: rgba(255,255,255,0.16); }
.code-block pre {
  padding: var(--space-5);
  margin: 0;
  overflow-x: auto;
}
.code-block code {
  background: none;
  padding: 0;
  font-size: 0.875rem;
  color: #d6e2ff;
  line-height: 1.7;
}

/* ─── Footer ───────────────────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--hairline);
  padding: var(--space-8) var(--space-6);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  gap: var(--space-6);
  align-items: center;
  color: var(--muted);
  font-size: 0.8125rem;
  flex-wrap: wrap;
}
.footer-inner a { transition: color 0.15s; }
.footer-inner a:hover { color: var(--ink); }