/* ==========================================================================
   Ad-Sys — Design System
   ========================================================================== */

:root {
  /* Palette */
  --color-bg: #0b1020;
  --color-bg-alt: #0f1630;
  --color-surface: #141b38;
  --color-surface-alt: #1a2347;
  --color-border: #2a3568;
  --color-border-soft: #1f2952;

  --color-text: #eef1fb;
  --color-text-muted: #a6aed6;
  --color-text-faint: #6b74a3;

  /* Brand colors — sampled directly from the Ad-Sys logo mark */
  --brand-green: #5CC142;
  --brand-green-strong: #439430;
  --brand-blue: #2E53D9;
  --brand-blue-strong: #1F3FAE;
  --brand-yellow: #E5C737;
  --brand-orange: #DF7224;

  --color-primary: var(--brand-blue);
  --color-primary-strong: var(--brand-blue-strong);
  --color-accent: var(--brand-green);
  --color-accent-strong: var(--brand-green-strong);
  --color-warn: var(--brand-orange);

  --gradient-hero: radial-gradient(circle at 15% 20%, rgba(46,83,217,0.35), transparent 45%),
                    radial-gradient(circle at 85% 0%, rgba(92,193,66,0.25), transparent 40%),
                    linear-gradient(180deg, #0b1020 0%, #0b1020 100%);
  --gradient-accent: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-green) 100%);
  --gradient-advertiser: linear-gradient(135deg, #7ed957 0%, var(--brand-green) 100%);
  --gradient-publisher: linear-gradient(135deg, #5b7dff 0%, var(--brand-blue) 100%);
  --gradient-adnetwork: linear-gradient(135deg, var(--brand-yellow) 0%, var(--brand-orange) 100%);

  /* Type */
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

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

  --shadow-md: 0 12px 32px -12px rgba(6, 10, 30, 0.55);
  --shadow-lg: 0 24px 64px -24px rgba(6, 10, 30, 0.65);

  --container: 1360px;
  --container-wide: 1520px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-6);
}
.container-wide {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

section { position: relative; }

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 var(--space-4);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.4rem, 4.5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); }
h3 { font-size: 1.3rem; }

p { color: var(--color-text-muted); margin: 0 0 var(--space-4); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}
.eyebrow::before {
  content: "";
  width: 20px;
  height: 2px;
  background: var(--color-accent);
  display: inline-block;
}

.lead {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 640px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-accent);
  color: #06121b;
  box-shadow: 0 10px 30px -10px rgba(34, 211, 197, 0.55);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 36px -12px rgba(34, 211, 197, 0.65); }
.btn-ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn-ghost:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn-block { width: 100%; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 16, 32, 0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border-soft);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  gap: var(--space-5);
}
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.logo-img {
  height: 56px;
  width: auto;
  display: block;
}
.logo-word {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--color-text);
  line-height: 1;
  white-space: nowrap;
}
.logo.logo-lg { margin-bottom: var(--space-5); }
.logo.logo-lg .logo-img { height: 88px; }
.logo.logo-lg .logo-word { font-size: 2.1rem; }

@media (max-width: 640px) {
  .logo-img { height: 38px; }
  .logo-word { font-size: 1.1rem; }
}

.main-nav { display: flex; align-items: center; gap: var(--space-6); }
.nav-list { display: flex; align-items: center; gap: var(--space-5); list-style: none; margin: 0; padding: 0; }
.nav-item { position: relative; }
.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-text-muted);
  padding: var(--space-2) 0;
}
.nav-link:hover, .nav-item.active > .nav-link { color: var(--color-text); }
.nav-link .chev { font-size: 0.6rem; opacity: 0.7; transition: transform 0.15s ease; }
.nav-item:hover .nav-link .chev { transform: rotate(180deg); }

.dropdown {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  min-width: 260px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s ease;
}
.nav-item:hover .dropdown,
.nav-item:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.dropdown a {
  display: block;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--color-text-muted);
  font-weight: 500;
}
.dropdown a:hover { background: var(--color-surface-alt); color: var(--color-text); }

.header-actions { display: flex; align-items: center; gap: var(--space-4); }
.nav-toggle { display: none; }

@media (max-width: 960px) {
  .main-nav { display: none; }
  .header-actions .btn-ghost { display: none; }
  .nav-toggle {
    display: inline-flex;
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
  }
}

/* Hero */
.hero {
  background: var(--gradient-hero);
  padding: var(--space-9) 0 var(--space-8);
  border-bottom: 1px solid var(--color-border-soft);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-8);
  align-items: center;
}
.hero-actions { display: flex; gap: var(--space-4); margin-top: var(--space-6); flex-wrap: wrap; }
.hero-visual {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: linear-gradient(160deg, var(--color-surface) 0%, var(--color-surface-alt) 100%);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
}
.mini-stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.mini-stat {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}
.mini-stat .value { font-size: 1.9rem; font-weight: 800; color: var(--color-accent); }
.mini-stat .label { font-size: 0.82rem; color: var(--color-text-faint); text-transform: uppercase; letter-spacing: 0.06em; }

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
}

/* Stats band */
.stats-band {
  padding: var(--space-7) 0;
  border-bottom: 1px solid var(--color-border-soft);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  text-align: center;
}
.stat-tile .value {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-tile .label { color: var(--color-text-faint); font-size: 0.85rem; margin-top: var(--space-1); }

/* Hero v2 — wide, two-tone headline, feature row, big logo showcase */
.hero-v2 {
  background: var(--gradient-hero);
  padding: calc(var(--space-9) + 12px) 0 var(--space-7);
  border-bottom: 1px solid var(--color-border-soft);
  overflow: hidden;
}
.hero-v2-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-9);
  align-items: center;
}
.hero-v2 h1 { font-size: clamp(2.8rem, 5vw, 4.2rem); }
.hl-green { color: var(--brand-green); }
.hl-blue { color: var(--brand-blue); }
.hero-v2 .lead { max-width: 560px; font-size: 1.2rem; }

.hero-feature-row {
  display: flex;
  gap: var(--space-7);
  margin: var(--space-7) 0 var(--space-6);
  flex-wrap: wrap;
}
.hero-feature-item { display: flex; flex-direction: column; gap: var(--space-3); max-width: 160px; }
.hero-feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}
.hero-feature-item .label { font-size: 0.95rem; font-weight: 600; color: var(--color-text); line-height: 1.3; }

.btn-hero {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--brand-green);
  color: #06210a;
  font-weight: 800;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 18px 36px;
  border-radius: 999px;
  box-shadow: 0 16px 36px -14px rgba(92, 193, 66, 0.6);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn-hero:hover { transform: translateY(-2px); background: #6fd455; box-shadow: 0 20px 44px -16px rgba(92, 193, 66, 0.7); }

.hero-logo-showcase {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 460px;
}
.hero-logo-showcase::before {
  content: "";
  position: absolute;
  inset: -10%;
  background: radial-gradient(circle at 40% 35%, rgba(92,193,66,0.28), transparent 55%),
              radial-gradient(circle at 65% 60%, rgba(46,83,217,0.25), transparent 55%),
              radial-gradient(circle at 25% 70%, rgba(223,114,36,0.14), transparent 50%);
  filter: blur(10px);
}
.hero-logo-showcase img {
  position: relative;
  width: 100%;
  max-width: 560px;
  filter: drop-shadow(0 0 46px rgba(92,193,66,0.35)) drop-shadow(0 0 80px rgba(46,83,217,0.25));
}

.scroll-indicator {
  display: flex;
  justify-content: center;
  margin-top: var(--space-8);
  color: var(--color-text-faint);
  font-size: 1.4rem;
  animation: scrollBounce 2.2s infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); opacity: 0.6; }
  50% { transform: translateY(8px); opacity: 1; }
}

@media (max-width: 960px) {
  .hero-v2-grid { grid-template-columns: 1fr; }
  .hero-logo-showcase { min-height: 260px; order: -1; }
  .hero-logo-showcase img { max-width: 300px; }
}

/* Stats strip v2 — five growth metrics, brand-colored */
.stats-strip-v2 {
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--color-border-soft);
  background: var(--color-bg-alt);
}
.stats-strip-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-5);
}
.stat-card-v2 {
  --accent-color: var(--brand-green);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--accent-color);
  border-radius: var(--radius-md);
  padding: var(--space-6) var(--space-5);
  text-align: center;
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.stat-card-v2:hover { transform: translateY(-4px); }
.stat-card-v2 .value { font-size: clamp(1.6rem, 2.2vw, 2.1rem); font-weight: 800; color: var(--accent-color); margin-bottom: 6px; }
.stat-card-v2 .label { font-size: 0.85rem; color: var(--color-text-muted); }
.stat-card-v2.c-green { --accent-color: var(--brand-green); }
.stat-card-v2.c-blue { --accent-color: var(--brand-blue); }
.stat-card-v2.c-yellow { --accent-color: var(--brand-yellow); }
.stat-card-v2.c-orange { --accent-color: var(--brand-orange); }

@media (max-width: 1080px) { .stats-strip-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 700px) { .stats-strip-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .stats-strip-grid { grid-template-columns: 1fr; } }

@media (max-width: 720px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Sections */
.section { padding: var(--space-9) 0; }
.section-head { max-width: 680px; margin: 0 auto var(--space-7); text-align: center; }
.section-head.left { margin-left: 0; text-align: left; }

.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.card-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--color-primary); }
.card-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #06121b;
  margin-bottom: var(--space-4);
}
.card h3 { margin-bottom: var(--space-2); }
.card p { margin-bottom: 0; font-size: 0.94rem; }

@media (max-width: 900px) {
  .card-grid, .card-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .card-grid, .card-grid.cols-2, .card-grid.cols-4 { grid-template-columns: 1fr; }
}

/* Alt section background */
.section-alt {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border-soft);
  border-bottom: 1px solid var(--color-border-soft);
}

/* Page hero (interior pages) */
.page-hero { padding: var(--space-8) 0 var(--space-7); background: var(--gradient-hero); border-bottom: 1px solid var(--color-border-soft); }
.page-hero .lead { max-width: 720px; }
.breadcrumb { font-size: 0.82rem; color: var(--color-text-faint); margin-bottom: var(--space-4); }
.breadcrumb a { color: var(--color-text-faint); }
.breadcrumb a:hover { color: var(--color-accent); }

/* Tabs (Platform page) */
.tabs { display: flex; gap: var(--space-3); margin-bottom: var(--space-7); flex-wrap: wrap; }
.tab-btn {
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
}
.tab-btn.active { background: var(--gradient-accent); color: #06121b; border-color: transparent; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-7);
  align-items: center;
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--color-border-soft);
}
.feature-row:last-child { border-bottom: none; }
.feature-row.reverse .feature-copy { order: 2; }
.feature-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.feature-list { list-style: none; margin: var(--space-4) 0 0; padding: 0; display: grid; gap: var(--space-3); }
.feature-list li {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}
.feature-list li::before {
  content: "";
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  margin-top: 7px;
  border-radius: 999px;
  background: var(--color-accent);
}

@media (max-width: 860px) {
  .feature-row { grid-template-columns: 1fr; }
  .feature-row.reverse .feature-copy { order: 0; }
}

/* Fact strip */
.fact-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.fact {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}
.fact .value { font-weight: 800; font-size: 1.3rem; color: var(--color-accent); margin-bottom: var(--space-1); }
.fact .label { font-size: 0.85rem; color: var(--color-text-faint); }
@media (max-width: 720px) { .fact-strip { grid-template-columns: 1fr 1fr; } }

/* CTA band */
.cta-band {
  background: linear-gradient(135deg, #16214a 0%, #0b1020 100%);
  border-top: 1px solid var(--color-border-soft);
  padding: var(--space-8) 0;
  text-align: center;
}
.cta-band h2 { margin-bottom: var(--space-3); }
.cta-actions { display: flex; justify-content: center; gap: var(--space-4); margin-top: var(--space-5); flex-wrap: wrap; }

/* Timeline (About) */
.timeline { display: grid; gap: var(--space-5); }
.timeline-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: var(--space-5);
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--color-border-soft);
}
.timeline-item:last-child { border-bottom: none; }
.timeline-item .year { font-weight: 800; color: var(--color-accent); font-size: 1.1rem; }

.office-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.office-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
}
.office-card h3 { color: var(--color-accent); font-size: 1.05rem; margin-bottom: var(--space-2); }
.office-card p { font-size: 0.92rem; margin-bottom: 0; }
@media (max-width: 860px) { .office-grid { grid-template-columns: 1fr; } }

/* Contact page */
.contact-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--space-8); align-items: start; }
.form-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-7);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.form-group { margin-bottom: var(--space-4); }
.form-group.full { grid-column: 1 / -1; }
label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}
input, select, textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.92rem;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(34, 211, 197, 0.18);
}
textarea { resize: vertical; min-height: 120px; }
@media (max-width: 640px) {
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}

.contact-info-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-4);
}
.contact-info-card h3 { font-size: 1rem; color: var(--color-accent); margin-bottom: var(--space-2); }
.contact-info-card p { margin-bottom: 0; font-size: 0.92rem; }

.form-success {
  display: none;
  margin-top: var(--space-4);
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  background: rgba(34, 211, 197, 0.12);
  border: 1px solid var(--color-accent-strong);
  color: var(--color-accent);
  font-size: 0.9rem;
}
.form-success.visible { display: block; }

/* Footer */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border-soft);
  padding: var(--space-8) 0 var(--space-6);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr;
  gap: var(--space-6);
  padding-bottom: var(--space-7);
}
.footer-brand p { font-size: 0.9rem; max-width: 260px; }
.footer-col h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-3); }
.footer-col a { font-size: 0.9rem; color: var(--color-text-muted); }
.footer-col a:hover { color: var(--color-accent); }
.footer-bottom {
  border-top: 1px solid var(--color-border-soft);
  padding-top: var(--space-5);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: 0.82rem;
  color: var(--color-text-faint);
}
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* Mobile nav drawer */
.mobile-nav {
  position: fixed;
  inset: 0;
  background: var(--color-bg);
  z-index: 200;
  padding: var(--space-5);
  display: none;
  overflow-y: auto;
}
.mobile-nav.open { display: block; }
.mobile-nav-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--space-6); }
.mobile-nav-close { background: transparent; border: 1px solid var(--color-border); color: var(--color-text); border-radius: var(--radius-sm); padding: 8px 12px; }
.mobile-nav details { border-bottom: 1px solid var(--color-border-soft); padding: var(--space-3) 0; }
.mobile-nav summary { font-weight: 700; font-size: 1.05rem; cursor: pointer; }
.mobile-nav details ul { list-style: none; padding: 0; margin: var(--space-3) 0 0; display: grid; gap: var(--space-3); }
.mobile-nav details a { color: var(--color-text-muted); font-size: 0.95rem; }
.mobile-nav > a.mobile-top-link { display: block; font-weight: 700; font-size: 1.05rem; padding: var(--space-3) 0; border-bottom: 1px solid var(--color-border-soft); }
.mobile-nav .btn { margin-top: var(--space-5); }

/* Audience bands — Advertisers (green) / Publishers (blue) */
.audience-band {
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--color-border-soft);
  position: relative;
  overflow: hidden;
}
.audience-band.advertisers {
  background: radial-gradient(circle at 10% 10%, rgba(92,193,66,0.14), transparent 55%), var(--color-bg);
}
.audience-band.publishers {
  background: radial-gradient(circle at 90% 10%, rgba(46,83,217,0.16), transparent 55%), var(--color-bg-alt);
}
.audience-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-8);
  align-items: center;
}
.audience-band.publishers .audience-grid { grid-template-columns: 1.1fr 0.9fr; }
.audience-band.publishers .audience-copy { order: 2; }
.audience-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}
.audience-band.advertisers .audience-tag { background: rgba(92,193,66,0.14); color: var(--brand-green); border: 1px solid rgba(92,193,66,0.35); }
.audience-band.publishers .audience-tag { background: rgba(46,83,217,0.16); color: #7f9bff; border: 1px solid rgba(46,83,217,0.4); }
.audience-tag.orange { background: rgba(223,114,36,0.14); color: var(--brand-orange); border: 1px solid rgba(223,114,36,0.4); }

/* Section-specific primary button colors — Advertisers green / Publishers blue / Ad Network orange */
.btn-primary.green { background: var(--gradient-advertiser); box-shadow: 0 10px 30px -10px rgba(92,193,66,0.5); }
.btn-primary.blue { background: var(--gradient-publisher); box-shadow: 0 10px 30px -10px rgba(46,83,217,0.55); }
.btn-primary.orange { background: var(--gradient-adnetwork); color: #2a1400; box-shadow: 0 10px 30px -10px rgba(223,114,36,0.55); }
.audience-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.audience-band.advertisers .audience-panel { border-color: rgba(92,193,66,0.3); }
.audience-band.publishers .audience-panel { border-color: rgba(46,83,217,0.35); }
.audience-list { list-style: none; margin: var(--space-4) 0 0; padding: 0; display: grid; gap: var(--space-3); }
.audience-list li { display: flex; gap: var(--space-3); align-items: flex-start; color: var(--color-text-muted); font-size: 0.95rem; }
.audience-list li::before { content: ""; flex-shrink: 0; width: 8px; height: 8px; margin-top: 7px; border-radius: 999px; }
.audience-band.advertisers .audience-list li::before { background: var(--brand-green); }
.audience-band.publishers .audience-list li::before { background: var(--brand-blue); }
@media (max-width: 860px) {
  .audience-grid, .audience-band.publishers .audience-grid { grid-template-columns: 1fr; }
  .audience-band.publishers .audience-copy { order: 0; }
}

/* Tool grid — Publisher formats */
.tool-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--space-4); }
.tool-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.tool-card:hover { transform: translateY(-4px); border-color: var(--brand-blue); }
.tool-card .tool-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--gradient-publisher);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; color: #06121b; margin-bottom: var(--space-4); font-size: 0.85rem;
}
.tool-card h3 { font-size: 1.02rem; margin-bottom: var(--space-2); }
.tool-card p { font-size: 0.88rem; margin-bottom: 0; }
@media (max-width: 1080px) { .tool-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 700px) { .tool-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .tool-grid { grid-template-columns: 1fr; } }

/* Advertiser service rows use .feature-row already defined; themed accent */
.section-advertiser .feature-list li::before { background: var(--brand-green); }
.section-publisher .feature-list li::before { background: var(--brand-blue); }
.section-adnetwork .feature-list li::before { background: var(--brand-orange); }
.section-adnetwork .card-icon { background: var(--gradient-adnetwork); color: #2a1400; }
.section-adnetwork .card:hover { border-color: var(--brand-orange); }
.section-adnetwork .eyebrow { color: var(--brand-orange); }
.section-adnetwork .eyebrow::before { background: var(--brand-orange); }
.section-adnetwork .fact .value { color: var(--brand-orange); }

/* Chooser cards (Open Account) */
.chooser-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-6); }
.chooser-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-7);
  text-align: center;
}
.chooser-card.green { border-color: rgba(92,193,66,0.35); }
.chooser-card.blue { border-color: rgba(46,83,217,0.4); }
.chooser-icon {
  width: 64px; height: 64px; border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto var(--space-5);
  font-weight: 800; font-size: 1.4rem; color: #06121b;
}
.chooser-card.green .chooser-icon { background: var(--gradient-advertiser); }
.chooser-card.blue .chooser-icon { background: var(--gradient-publisher); }
@media (max-width: 720px) { .chooser-grid { grid-template-columns: 1fr; } }

/* Signup forms */
.form-note {
  background: rgba(229, 199, 55, 0.1);
  border: 1px solid rgba(229, 199, 55, 0.35);
  color: var(--brand-yellow);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  font-size: 0.88rem;
  margin-bottom: var(--space-6);
}
.form-section-title {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-faint);
  margin: var(--space-6) 0 var(--space-4);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border-soft);
}
.form-section-title:first-of-type { margin-top: 0; padding-top: 0; border-top: none; }
.form-hint { font-size: 0.82rem; color: var(--color-text-faint); margin: -8px 0 var(--space-4); }

/* Utility */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.nowrap { white-space: nowrap; }