/* ============================================================
   DUELSPIN LABS — styles.css
   ============================================================ */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { display: block; max-width: 100%; }
button { font-family: inherit; }
input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

/* ---------- Design Tokens ---------- */
:root {
  --bg-primary:    #080D1A;
  --bg-secondary:  #0F1629;
  --bg-surface:    #151E33;
  --bg-card:       #1A2340;
  --border:        rgba(255,255,255,0.07);
  --border-hover:  rgba(255,255,255,0.14);
  --text-primary:  #F0F4FF;
  --text-secondary:#8A95B0;
  --text-muted:    #4A5568;
  --accent:        #2563EB;
  --accent-light:  #60A5FA;
  --accent-glow:   rgba(37,99,235,0.15);
  --success:       #10B981;
  --warning:       #F59E0B;
  --radius-sm:     6px;
  --radius-md:     10px;
  --radius-lg:     14px;
}

/* ---------- Base ---------- */
body {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  background-image: radial-gradient(rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 28px 28px;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Typography ---------- */
h1, h2 {
  font-family: 'DM Serif Display', serif;
  color: var(--text-primary);
  font-weight: 400;
}
h3, h4 {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 500;
  color: var(--text-primary);
}
h1 { font-size: 52px; line-height: 1.15; }
h2 { font-size: 38px; line-height: 1.2; }
h3 { font-size: 26px; line-height: 1.3; }
h4 { font-size: 18px; line-height: 1.4; }
p  { color: var(--text-secondary); }

code, pre, .mono {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
}

.label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-light);
}

/* ---------- Layout ---------- */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}
section { padding: 96px 0; }

/* ---------- Buttons ---------- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  background: var(--accent);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  border: none;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}
.btn-primary:hover {
  opacity: 0.9;
  box-shadow: 0 0 20px var(--accent-glow);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-hover);
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
  white-space: nowrap;
}
.btn-ghost:hover {
  border-color: var(--accent-light);
  color: var(--accent-light);
}

/* ---------- Cards ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: border-color 0.2s, transform 0.2s;
}
.card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

/* ---------- Fade-up Animation ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: transparent;
  transition: background 0.3s, border-bottom 0.3s;
}
.nav.scrolled {
  background: rgba(8,13,26,0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 17px;
  font-weight: 500;
  color: var(--text-primary);
  flex-shrink: 0;
}
.nav-logo img {
  height: 32px;
  width: auto;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
}
.nav-links li a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
}
.nav-links li a:hover,
.nav-links li a.active { color: var(--text-primary); }
.nav-cta { margin-left: 16px; padding: 9px 18px; font-size: 14px; }
.nav-burger {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 22px;
  cursor: pointer;
  margin-left: auto;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  margin-bottom: 48px;
}
.footer-logo {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 17px;
  font-weight: 500;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.footer-logo img {
  height: 28px;
  width: auto;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 260px;
  margin-bottom: 20px;
}
.footer-social {
  display: flex;
  gap: 12px;
}
.footer-social a {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: color 0.2s, border-color 0.2s;
}
.footer-social a:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}
.footer-social svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}
.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.footer-links > div {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links strong {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.footer-links a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--text-primary); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border);
  padding-top: 24px;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-bottom div {
  display: flex;
  gap: 20px;
}
.footer-bottom a {
  color: var(--text-muted);
  transition: color 0.2s;
}
.footer-bottom a:hover { color: var(--text-secondary); }

/* ============================================================
   HOME — index.html
   ============================================================ */

/* Hero */
.hero {
  padding: 80px 0 96px;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--accent-glow);
  border: 1px solid rgba(96,165,250,0.2);
  border-radius: 99px;
  font-size: 12px;
  font-weight: 500;
  color: var(--accent-light);
  margin-bottom: 24px;
}
.hero-text h1 { margin-bottom: 20px; }
.hero-text p  { font-size: 18px; line-height: 1.7; margin-bottom: 36px; max-width: 480px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* Code Terminal */
.terminal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.terminal-chrome {
  background: var(--bg-surface);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}
.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.terminal-dot.red    { background: #FF5F57; }
.terminal-dot.yellow { background: #FEBC2E; }
.terminal-dot.green  { background: #28C840; }
.terminal-tabs {
  display: flex;
  gap: 4px;
  margin-left: 12px;
}
.terminal-tab {
  font-size: 12px;
  font-weight: 500;
  font-family: 'IBM Plex Mono', monospace;
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid transparent;
  background: none;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}
.terminal-tab.active {
  color: var(--accent-light);
  background: var(--accent-glow);
  border-color: rgba(96,165,250,0.2);
}
.terminal-body {
  padding: 20px;
}
.terminal-panel { display: none; }
.terminal-panel.active { display: block; }
.terminal-body pre {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-all;
}
.terminal-body .method { color: var(--warning); }
.terminal-body .path   { color: var(--text-primary); }
.terminal-body .key    { color: var(--accent-light); }
.terminal-body .val    { color: var(--success); }
.terminal-body .status { color: var(--success); font-weight: 500; }
.terminal-body .header-line { color: var(--text-muted); }

/* Trust Bar */
.trust-bar {
  margin-top: 64px;
  text-align: center;
}
.trust-label {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.trust-pills {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}
.trust-pill {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 99px;
}

/* Section label */
.section-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 12px;
  display: block;
}

/* Problem section */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}
.problem-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.problem-card h4 { margin-bottom: 10px; }

/* Solution section */
.solution-body {
  margin: 24px 0 40px;
  max-width: 700px;
}
.solution-highlights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}
.highlight-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
}
.highlight-icon {
  font-size: 22px;
  margin-bottom: 12px;
}
.highlight-item h4 { margin-bottom: 8px; }

/* Steps teaser */
.steps-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 48px 0 40px;
}
.step-item {
  position: relative;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color 0.2s, transform 0.2s;
}
.step-item:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.step-num {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 10px;
  display: block;
}
.step-item p { font-size: 14px; margin-top: 8px; }

/* Use cases grid */
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 48px 0 40px;
}
.usecase-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: border-color 0.2s, transform 0.2s;
}
.usecase-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.usecase-card h4 { margin-bottom: 8px; }
.usecase-card p { font-size: 14px; }

/* Stats section */
.stats-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 64px 0;
}
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  text-align: center;
}
.stat-card { padding: 32px; }
.stat-value {
  font-family: 'DM Serif Display', serif;
  font-size: 48px;
  color: var(--accent-light);
  display: block;
  line-height: 1.1;
  margin-bottom: 8px;
}
.stat-label { font-size: 15px; color: var(--text-secondary); }

/* CTA Banner */
.cta-banner {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 64px;
  text-align: center;
}
.cta-banner h2 { margin-bottom: 16px; }
.cta-banner p  { max-width: 560px; margin: 0 auto 36px; }
.cta-banner .btn-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   PRODUCT — product.html
   ============================================================ */
.product-hero { padding: 80px 0 64px; text-align: center; }
.product-hero h1 { max-width: 700px; margin: 0 auto 20px; }
.product-hero p  { max-width: 560px; margin: 0 auto; font-size: 18px; }

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.cap-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}
.cap-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.cap-icon {
  font-size: 24px;
  margin-bottom: 14px;
  display: block;
}
.cap-card h4 { margin-bottom: 10px; font-size: 16px; }
.cap-card p  { font-size: 14px; line-height: 1.65; }

/* API Preview tabs */
.api-preview { margin-top: 80px; }
.api-tabs-row {
  display: flex;
  gap: 4px;
  margin: 24px 0 0;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}
.api-tab {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 10px 18px;
  cursor: pointer;
  border: none;
  background: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.2s, border-color 0.2s;
}
.api-tab.active {
  color: var(--accent-light);
  border-bottom-color: var(--accent-light);
}
.api-tab:hover { color: var(--text-secondary); }

.api-panel {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0 var(--radius-lg) var(--radius-lg) var(--radius-lg);
  padding: 24px;
  margin-top: 0;
}
.api-panel.active { display: block; }
.api-panel pre {
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-secondary);
  white-space: pre-wrap;
}

/* Integrations */
.integrations-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}
.int-tag {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 99px;
  transition: border-color 0.2s, color 0.2s;
}
.int-tag:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}
.integrations-cta { margin-top: 40px; }

/* ============================================================
   HOW IT WORKS — how-it-works.html
   ============================================================ */
.hiw-hero { padding: 80px 0 64px; text-align: center; }
.hiw-hero h1 { max-width: 680px; margin: 0 auto 20px; }
.hiw-hero p  { max-width: 520px; margin: 0 auto; font-size: 18px; }

.step-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
  margin-bottom: 80px;
  padding: 48px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.step-block.reverse { direction: rtl; }
.step-block.reverse > * { direction: ltr; }

.step-block-text .step-num-large {
  font-family: 'DM Serif Display', serif;
  font-size: 80px;
  line-height: 1;
  color: var(--accent-glow);
  -webkit-text-stroke: 1px var(--accent);
  color: transparent;
  margin-bottom: 8px;
  display: block;
}
.step-block-text h3 { font-size: 28px; margin-bottom: 16px; }
.step-block-text p  { font-size: 15px; line-height: 1.75; }

/* Code block */
.code-block {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.code-block-header {
  background: var(--bg-surface);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}
.code-block-header span { font-size: 11px; color: var(--text-muted); font-family: 'IBM Plex Mono', monospace; }
.code-block pre {
  padding: 20px;
  font-size: 12px;
  line-height: 1.75;
  color: var(--text-secondary);
  white-space: pre-wrap;
  overflow-x: auto;
}
.code-block .cb-bash { color: var(--warning); }
.code-block .cb-kw   { color: #C792EA; }
.code-block .cb-str  { color: var(--success); }
.code-block .cb-fn   { color: var(--accent-light); }
.code-block .cb-key  { color: var(--accent-light); }
.code-block .cb-val  { color: var(--success); }
.code-block .cb-cmt  { color: var(--text-muted); }

/* Campaign Config Mockup */
.campaign-mockup {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.mockup-header {
  background: var(--bg-surface);
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.mockup-header span { font-size: 12px; font-weight: 500; color: var(--text-secondary); font-family: 'IBM Plex Mono', monospace; }
.mockup-badge {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 99px;
  background: rgba(16,185,129,0.15);
  color: var(--success);
  border: 1px solid rgba(16,185,129,0.3);
  margin-left: auto;
}
.mockup-body { padding: 20px; display: flex; flex-direction: column; gap: 14px; }
.mockup-field label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: block;
  margin-bottom: 6px;
}
.mockup-input {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font-size: 13px;
  font-family: 'IBM Plex Mono', monospace;
  color: var(--text-secondary);
}
.mockup-select {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font-size: 13px;
  color: var(--text-secondary);
}
.mockup-prizes { display: flex; flex-direction: column; gap: 6px; }
.mockup-prize {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 12px;
  font-family: 'IBM Plex Mono', monospace;
  color: var(--text-secondary);
}
.mockup-prize-prob {
  font-size: 11px;
  color: var(--accent-light);
  background: var(--accent-glow);
  padding: 2px 8px;
  border-radius: 99px;
}
.mockup-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
}
.toggle-pill {
  width: 36px;
  height: 20px;
  background: var(--success);
  border-radius: 99px;
  position: relative;
  flex-shrink: 0;
}
.toggle-pill::after {
  content: '';
  position: absolute;
  right: 3px;
  top: 3px;
  width: 14px;
  height: 14px;
  background: #fff;
  border-radius: 50%;
}

/* Spin Wheel */
.spin-wheel-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.spin-wheel-wrap {
  position: relative;
  width: 200px;
  height: 200px;
}
.spin-wheel {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: conic-gradient(
    var(--accent)     0deg   60deg,
    var(--bg-surface) 60deg  120deg,
    var(--accent)     120deg 180deg,
    var(--bg-surface) 180deg 240deg,
    var(--accent)     240deg 300deg,
    var(--bg-surface) 300deg 360deg
  );
  border: 3px solid var(--border-hover);
  animation: wheelSpin 2.4s cubic-bezier(0.17, 0.67, 0.12, 1.0) forwards;
  box-shadow: 0 0 40px var(--accent-glow);
}
@keyframes wheelSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(900deg); }
}
.spin-pointer {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-top: 18px solid var(--warning);
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.4));
}
.spin-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--border-hover);
}
.spin-labels {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.spin-label-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
}
.spin-label-dot {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}
.spin-label-dot.blue { background: var(--accent); }
.spin-label-dot.dark { background: var(--bg-surface); border: 1px solid var(--border-hover); }

/* Analytics Mockup */
.analytics-mockup {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.analytics-header {
  background: var(--bg-surface);
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}
.analytics-header span { font-size: 12px; color: var(--text-muted); font-family: 'IBM Plex Mono', monospace; }
.chart-area {
  padding: 20px;
}
.chart-svg { width: 100%; height: 120px; }
.analytics-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding: 0 20px 20px;
}
.analytics-metric {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  text-align: center;
}
.analytics-metric .val {
  font-family: 'DM Serif Display', serif;
  font-size: 22px;
  color: var(--accent-light);
  display: block;
}
.analytics-metric .lbl {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
  display: block;
}

/* Technical specs */
.tech-specs {
  margin-top: 80px;
}
.tech-specs details {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.tech-specs summary {
  padding: 24px 28px;
  cursor: pointer;
  font-weight: 500;
  font-size: 18px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  user-select: none;
  transition: background 0.2s;
}
.tech-specs summary::-webkit-details-marker { display: none; }
.tech-specs summary::after {
  content: '+';
  font-size: 22px;
  color: var(--accent-light);
  font-weight: 300;
}
.tech-specs details[open] summary::after { content: '−'; }
.tech-specs summary:hover { background: var(--bg-surface); }
.tech-specs-body {
  padding: 0 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.spec-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 15px;
}
.spec-bullet {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 8px;
  flex-shrink: 0;
}
.spec-item strong { color: var(--text-primary); }
.spec-item p { color: var(--text-secondary); margin-top: 2px; }

/* ============================================================
   USE CASES — use-cases.html
   ============================================================ */
.uc-hero { padding: 80px 0 64px; text-align: center; }
.uc-hero h1 { max-width: 700px; margin: 0 auto 20px; }
.uc-hero p  { max-width: 560px; margin: 0 auto; font-size: 18px; }

.uc-cards { padding-top: 32px; }
.uc-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-bottom: 20px;
  transition: border-color 0.2s, transform 0.2s;
}
.uc-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.uc-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.uc-card h3 { font-size: 24px; margin-bottom: 0; }
.uc-trigger {
  font-size: 12px;
  font-family: 'IBM Plex Mono', monospace;
  color: var(--accent-light);
  background: var(--accent-glow);
  border: 1px solid rgba(96,165,250,0.2);
  padding: 4px 12px;
  border-radius: 99px;
  white-space: nowrap;
}
.uc-card > p { font-size: 15px; margin-bottom: 24px; }
.uc-metrics {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.uc-metric {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
}
.uc-metric .label { font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); display: block; margin-bottom: 4px; }
.uc-metric .value { font-size: 14px; font-weight: 500; color: var(--success); }

/* ============================================================
   PRICING — pricing.html
   ============================================================ */
.pricing-hero { padding: 80px 0 64px; text-align: center; }
.pricing-hero h1 { max-width: 560px; margin: 0 auto 20px; }
.pricing-hero p  { max-width: 480px; margin: 0 auto; font-size: 18px; }

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s;
}
.pricing-card:hover { transform: translateY(-4px); }
.pricing-card.featured {
  border: 1px solid var(--accent);
  box-shadow: 0 0 32px var(--accent-glow);
}
.pricing-badge {
  display: inline-flex;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-light);
  background: var(--accent-glow);
  border: 1px solid rgba(96,165,250,0.2);
  padding: 3px 10px;
  border-radius: 99px;
  margin-bottom: 16px;
  align-self: flex-start;
}
.pricing-name { font-size: 14px; font-weight: 500; color: var(--text-muted); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.06em; }
.pricing-price {
  font-family: 'DM Serif Display', serif;
  font-size: 44px;
  color: var(--text-primary);
  margin-bottom: 4px;
  line-height: 1;
}
.pricing-price span { font-size: 18px; vertical-align: top; margin-top: 8px; display: inline-block; font-family: 'IBM Plex Sans', sans-serif; font-weight: 400; }
.pricing-price sub { font-size: 14px; font-family: 'IBM Plex Sans', sans-serif; color: var(--text-secondary); }
.pricing-desc { font-size: 14px; color: var(--text-secondary); margin: 12px 0 24px; }
.pricing-divider { height: 1px; background: var(--border); margin: 0 0 24px; }
.pricing-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  margin-bottom: 28px;
}
.pricing-feature {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}
.pricing-feature::before {
  content: '✓';
  color: var(--success);
  font-weight: 500;
  flex-shrink: 0;
  margin-top: 1px;
}

/* Pricing FAQ */
.pricing-faq { margin-top: 80px; }
.pricing-faq h2 { margin-bottom: 32px; }
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:first-of-type { border-top: 1px solid var(--border); }
.faq-item details summary {
  padding: 20px 0;
  cursor: pointer;
  font-weight: 500;
  font-size: 16px;
  color: var(--text-primary);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}
.faq-item details summary::-webkit-details-marker { display: none; }
.faq-item details summary::after {
  content: '+';
  font-size: 20px;
  color: var(--accent-light);
  font-weight: 300;
  flex-shrink: 0;
}
.faq-item details[open] summary::after { content: '−'; }
.faq-answer {
  padding: 0 0 20px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
}

/* ============================================================
   ABOUT — about.html
   ============================================================ */
.about-hero { padding: 80px 0 64px; text-align: center; }
.about-hero h1 { max-width: 660px; margin: 0 auto 20px; }
.about-hero p  { max-width: 520px; margin: 0 auto; font-size: 18px; }

.about-story { padding: 64px 0; }
.about-story-inner {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.about-story p { font-size: 17px; line-height: 1.8; }

.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.value-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color 0.2s, transform 0.2s;
}
.value-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.value-card h4 { margin-bottom: 10px; font-size: 17px; }

/* Team */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}
.team-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  transition: border-color 0.2s, transform 0.2s;
}
.team-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.team-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 500;
  color: #fff;
  margin: 0 auto 16px;
  font-family: 'IBM Plex Sans', sans-serif;
}
.team-name { font-size: 17px; font-weight: 500; margin-bottom: 4px; }
.team-title { font-size: 13px; color: var(--accent-light); margin-bottom: 10px; }
.team-card p { font-size: 13px; }

/* ============================================================
   CONTACT — contact.html
   ============================================================ */
.contact-hero { padding: 80px 0 48px; text-align: center; }
.contact-hero h1 { max-width: 480px; margin: 0 auto 20px; }
.contact-hero p  { max-width: 520px; margin: 0 auto; font-size: 18px; }

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  padding: 32px 0 80px;
  align-items: start;
}
.contact-options {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-option {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}
.contact-option:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.contact-option h4 { margin-bottom: 8px; }
.contact-option p  { font-size: 14px; margin-bottom: 16px; }
.contact-email {
  font-size: 14px;
  color: var(--accent-light);
  font-family: 'IBM Plex Mono', monospace;
  border-bottom: 1px dashed rgba(96,165,250,0.4);
  padding-bottom: 2px;
}
.contact-email:hover { color: var(--accent-light); opacity: 0.8; }

/* Contact form */
.contact-form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-size: 14px;
  color: var(--text-primary);
  font-family: 'IBM Plex Sans', sans-serif;
  transition: border-color 0.2s;
  width: 100%;
  -webkit-appearance: none;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--text-muted);
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.contact-form select {
  cursor: pointer;
}
.contact-form textarea { resize: vertical; min-height: 100px; }
.contact-form .btn-primary { align-self: flex-start; margin-top: 4px; }
.contact-response {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 12px;
  line-height: 1.6;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .capabilities-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-row { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  h1 { font-size: 36px; }
  h2 { font-size: 28px; }
  h3 { font-size: 22px; }
  section { padding: 64px 0; }

  /* Nav */
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
    margin: 0;
    z-index: 99;
  }
  .nav-links.open { display: flex; }
  .nav-links li a { display: block; padding: 12px 24px; font-size: 15px; }
  .nav-cta { display: none; }
  .nav-burger { display: block; }
  .nav { position: sticky; }

  /* Hero */
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-text h1 { font-size: 36px; }
  .hero-text p  { font-size: 16px; }

  /* Grids */
  .problem-grid      { grid-template-columns: 1fr; }
  .solution-highlights{ grid-template-columns: 1fr; }
  .steps-row         { grid-template-columns: 1fr; }
  .usecases-grid     { grid-template-columns: 1fr; }
  .stats-row         { grid-template-columns: 1fr; }
  .capabilities-grid { grid-template-columns: 1fr; }
  .pricing-grid      { grid-template-columns: 1fr; }
  .values-grid       { grid-template-columns: 1fr; }
  .team-grid         { grid-template-columns: 1fr; }
  .contact-layout    { grid-template-columns: 1fr; gap: 32px; }
  .footer-top        { grid-template-columns: 1fr; gap: 32px; }
  .footer-links      { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .footer-bottom     { flex-direction: column; gap: 12px; text-align: center; }

  /* How it works */
  .step-block { grid-template-columns: 1fr; gap: 32px; padding: 28px; }
  .step-block.reverse { direction: ltr; }

  /* Pricing */
  .pricing-card.featured { order: -1; }

  /* CTA Banner */
  .cta-banner { padding: 40px 24px; }

  /* Analytics metrics */
  .analytics-metrics { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; }
  .cta-banner .btn-row { flex-direction: column; align-items: center; }
  .uc-card-header { flex-direction: column; gap: 10px; }
}