/* ============================================================
   PAYCOLAB — DESIGN TOKENS
   ============================================================ */
:root {
  --bg: #0B0F17;
  --bg-elevated: #0F1522;
  --bg-card: rgba(255, 255, 255, 0.03);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --blue: #2563EB;
  --cyan: #06B6D4;
  --text: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  --gradient: linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
  --gradient-soft: linear-gradient(135deg, rgba(37,99,235,.15), rgba(6,182,212,.15));
  --radius: 16px;
  --radius-lg: 24px;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Plus Jakarta Sans', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
  --container: 1200px;
}

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

/* scroll-padding-top keeps anchor targets clear of the 76px fixed header
   (single offset — do not also set scroll-margin-top on targets, they stack) */
html { scroll-behavior: smooth; scroll-padding-top: 80px; }

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

::selection { background: rgba(6,182,212,.35); }

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img, svg { max-width: 100%; display: block; }

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

/* ---------- Shared type ---------- */
.section { padding: 112px 0; position: relative; }
.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}
.section-sub {
  color: var(--text-muted);
  font-size: 18px;
  max-width: 640px;
}
.section-head { max-width: 760px; margin-bottom: 64px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .section-sub { margin: 0 auto; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 12px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .25s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 0 0 1px rgba(255,255,255,.08) inset, 0 8px 32px rgba(37,99,235,.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(255,255,255,.15) inset, 0 12px 40px rgba(6,182,212,.45);
}
.btn-secondary {
  background: rgba(255,255,255,.04);
  border-color: var(--border-strong);
  color: var(--text);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover {
  border-color: var(--cyan);
  background: rgba(6,182,212,.08);
  transform: translateY(-2px);
}
.btn-sm { padding: 10px 20px; font-size: 14px; }

/* ---------- Glass card base ---------- */
.glass {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

/* Glowing gradient border card */
.glow-card {
  position: relative;
  background: var(--bg-elevated);
  border-radius: var(--radius);
  padding: 32px;
  overflow: hidden;
  transition: transform .3s ease;
}
.glow-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(160deg, rgba(37,99,235,.5), rgba(255,255,255,.07) 40%, rgba(6,182,212,.45));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.glow-card::after {
  content: '';
  position: absolute;
  top: -60%;
  left: -20%;
  width: 140%;
  height: 120%;
  background: radial-gradient(ellipse at top, rgba(37,99,235,.12), transparent 60%);
  opacity: 0;
  transition: opacity .4s ease;
  pointer-events: none;
}
.glow-card:hover { transform: translateY(-6px); }
.glow-card:hover::after { opacity: 1; }

/* ---------- Reveal on scroll ---------- */
.js .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }

/* ============================================================
   1. HEADER & NAVIGATION
   ============================================================ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: all .3s ease;
}
.header.scrolled {
  background: rgba(11,15,23,.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}
.logo {
  font-family: var(--font-display);
  font-size: 23px;
  font-weight: 800;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-mark {
  width: 34px; height: 34px;
  border-radius: 10px;
  background: var(--gradient);
  display: grid;
  place-items: center;
  box-shadow: 0 4px 16px rgba(37,99,235,.4);
}
.logo-mark svg { width: 18px; height: 18px; }
.logo-text { display: inline-flex; }
.logo-accent { color: var(--cyan); }

.nav-links {
  display: flex;
  gap: 26px;
  align-items: center;
}
.nav-links a {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-muted);
  transition: color .2s ease;
}
.nav-links a:hover { color: var(--text); }

.nav-actions { display: flex; align-items: center; gap: 20px; }
.nav-signin {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-muted);
  transition: color .2s;
}
.nav-signin:hover { color: var(--cyan); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 110;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text);
  margin: 5px 0;
  border-radius: 2px;
  transition: all .3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   2. HERO
   ============================================================ */
.hero {
  position: relative;
  padding: 180px 0 100px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 45% at 70% 10%, rgba(37,99,235,.16), transparent),
    radial-gradient(ellipse 45% 40% at 15% 35%, rgba(6,182,212,.1), transparent);
}
.hero-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 20%, #000 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 20%, #000 20%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid rgba(6,182,212,.35);
  background: rgba(6,182,212,.07);
  color: var(--cyan);
  margin-bottom: 28px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(38px, 5vw, 60px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
.hero h1 .accent {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 560px;
  margin-bottom: 36px;
}
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero visual — routing diagram */
.hero-visual {
  position: relative;
}
.hero-visual-panel {
  position: relative;
  border-radius: var(--radius-lg);
  background: rgba(15,21,34,.6);
  border: 1px solid var(--border);
  backdrop-filter: blur(20px);
  padding: 20px;
  box-shadow: 0 32px 80px rgba(0,0,0,.5), 0 0 0 1px rgba(37,99,235,.08);
}
.hero-visual-panel::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(145deg, rgba(37,99,235,.5), transparent 35%, transparent 65%, rgba(6,182,212,.5));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.routing-svg { width: 100%; height: auto; }

@keyframes enginePulse {
  0%, 100% { opacity: .5; }
  50% { opacity: 1; }
}
.engine-glow { animation: enginePulse 3s ease-in-out infinite; }

/* Social proof */
.social-proof {
  margin-top: 88px;
  text-align: center;
  position: relative;
}
.social-proof p {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 28px;
  letter-spacing: .3px;
}
.brand-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: clamp(28px, 5vw, 64px);
  flex-wrap: wrap;
}
.brand-logo {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--text-dim);
  opacity: .55;
  filter: grayscale(1);
  letter-spacing: -0.01em;
  transition: all .3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand-logo:hover { opacity: 1; color: var(--text-muted); }

/* ============================================================
   3. VALUE PILLARS
   ============================================================ */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.pillar-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--gradient-soft);
  border: 1px solid rgba(6,182,212,.25);
  display: grid;
  place-items: center;
  font-size: 24px;
  margin-bottom: 22px;
}
.glow-card h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.3;
}
.glow-card p {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ============================================================
   4. FEATURE MATRIX TABLE
   ============================================================ */
.matrix-wrap {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  overflow-x: auto;
  box-shadow: 0 24px 64px rgba(0,0,0,.35);
}
.matrix {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 15px;
}
.matrix thead th {
  text-align: left;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--cyan);
  padding: 22px 28px;
  background: rgba(37,99,235,.08);
  border-bottom: 1px solid var(--border-strong);
}
.matrix tbody td {
  padding: 22px 28px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  color: var(--text-muted);
}
.matrix tbody tr:last-child td { border-bottom: none; }
.matrix tbody tr { transition: background .2s ease; }
.matrix tbody tr:hover { background: rgba(37,99,235,.05); }
.matrix .feat {
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 12px;
}
.matrix .feat::before {
  content: '';
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--gradient);
  box-shadow: 0 0 10px rgba(6,182,212,.7);
  flex-shrink: 0;
}
.matrix .impact {
  color: var(--text);
  font-weight: 600;
}
.matrix .impact .pill {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(6,182,212,.1);
  border: 1px solid rgba(6,182,212,.3);
  color: var(--cyan);
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.45;
}

/* ============================================================
   5. HOW IT WORKS
   ============================================================ */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.step {
  position: relative;
  padding: 32px 28px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
  transition: border-color .3s ease, transform .3s ease;
}
.step:hover { border-color: rgba(6,182,212,.4); transform: translateY(-4px); }
.step-num {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  width: 44px; height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--gradient);
  color: #fff;
  margin-bottom: 22px;
  box-shadow: 0 6px 20px rgba(37,99,235,.35);
}
.step h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.step p { font-size: 14.5px; color: var(--text-muted); }
.step-connector {
  position: absolute;
  top: 54px;
  right: -24px;
  width: 24px;
  height: 2px;
  background: linear-gradient(90deg, rgba(6,182,212,.5), rgba(37,99,235,.2));
  z-index: 1;
}

/* ============================================================
   6. SECURITY & COMPLIANCE
   ============================================================ */
.security { background: var(--bg-elevated); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.security-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.security-list { display: grid; gap: 20px; }
.security-item {
  display: flex;
  gap: 18px;
  padding: 22px 24px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: border-color .3s ease;
}
.security-item:hover { border-color: rgba(37,99,235,.4); }
.security-check {
  flex-shrink: 0;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--gradient);
  display: grid;
  place-items: center;
  margin-top: 2px;
}
.security-check svg { width: 13px; height: 13px; }
.security-item strong { display: block; font-size: 16px; margin-bottom: 4px; }
.security-item span { font-size: 14.5px; color: var(--text-muted); }

.security-shield {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 420px;
}
.shield-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(6,182,212,.18);
}
.shield-ring.r1 { width: 300px; height: 300px; animation: ringPulse 4s ease-in-out infinite; }
.shield-ring.r2 { width: 390px; height: 390px; border-color: rgba(37,99,235,.14); animation: ringPulse 4s ease-in-out 1s infinite; }
.shield-ring.r3 { width: 480px; height: 480px; border-color: rgba(255,255,255,.06); animation: ringPulse 4s ease-in-out 2s infinite; }
@keyframes ringPulse {
  0%, 100% { transform: scale(1); opacity: .7; }
  50% { transform: scale(1.04); opacity: 1; }
}
.shield-core {
  width: 170px; height: 170px;
  border-radius: 44px;
  background: var(--gradient-soft);
  border: 1px solid rgba(6,182,212,.4);
  backdrop-filter: blur(12px);
  display: grid;
  place-items: center;
  box-shadow: 0 0 80px rgba(37,99,235,.3), 0 0 160px rgba(6,182,212,.15);
}
.shield-core svg { width: 76px; height: 76px; }
.shield-badges {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.shield-badge {
  position: absolute;
  padding: 8px 16px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .8px;
  border-radius: 999px;
  background: rgba(15,21,34,.9);
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  backdrop-filter: blur(8px);
  white-space: nowrap;
}
.shield-badge.b1 { top: 12%; left: 8%; }
.shield-badge.b2 { top: 22%; right: 4%; }
.shield-badge.b3 { bottom: 20%; left: 2%; }
.shield-badge.b4 { bottom: 10%; right: 10%; }

/* ============================================================
   7. DEVELOPER-FIRST
   ============================================================ */
.dev-inner {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 72px;
  align-items: center;
}
.sdk-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.sdk-chip {
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  transition: all .25s ease;
}
.sdk-chip:hover { border-color: var(--cyan); color: var(--cyan); }
.dev-cta { margin-top: 36px; }

.code-window {
  border-radius: var(--radius);
  background: #0A0E16;
  border: 1px solid var(--border-strong);
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,.55), 0 0 0 1px rgba(37,99,235,.1);
  position: relative;
}
.code-window::before {
  content: '';
  position: absolute;
  top: -40%; right: -20%;
  width: 60%; height: 80%;
  background: radial-gradient(ellipse, rgba(6,182,212,.08), transparent 70%);
  pointer-events: none;
}
.code-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,.02);
}
.code-dot { width: 11px; height: 11px; border-radius: 50%; }
.code-dot.red { background: #FF5F57; }
.code-dot.yellow { background: #FFBD2E; }
.code-dot.green { background: #28C840; }
.code-filename {
  margin-left: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-dim);
}
.code-body {
  padding: 24px 22px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.75;
  overflow-x: auto;
}
.code-body pre { white-space: pre; }
.tok-kw { color: #C084FC; }
.tok-const { color: #7DD3FC; }
.tok-fn { color: #06B6D4; }
.tok-str { color: #86EFAC; }
.tok-num { color: #FDBA74; }
.tok-prop { color: #E2E8F0; }
.tok-cmt { color: #475569; font-style: italic; }
.tok-base { color: #94A3B8; }

/* ============================================================
   8. FINAL CTA BANNER
   ============================================================ */
.final-cta { padding: 60px 0 112px; }
.cta-banner {
  position: relative;
  text-align: center;
  padding: 88px 40px;
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(120deg, rgba(37,99,235,.6), rgba(255,255,255,.06) 45%, rgba(6,182,212,.6));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.cta-banner::after {
  content: '';
  position: absolute;
  top: -70%; left: 50%;
  transform: translateX(-50%);
  width: 90%; height: 140%;
  background: radial-gradient(ellipse at top, rgba(37,99,235,.18), transparent 60%);
  pointer-events: none;
}
.cta-banner h2 {
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.12;
  margin-bottom: 18px;
  position: relative;
}
.cta-banner p {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 580px;
  margin: 0 auto 40px;
  position: relative;
}
.cta-banner .hero-ctas { justify-content: center; position: relative; }

/* ============================================================
   9. FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: 72px 0 36px;
  background: #080B11;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(4, 1fr);
  gap: 48px;
  margin-bottom: 64px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-dim);
  max-width: 280px;
  margin-top: 16px;
}
.footer h4 {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 20px;
}
.footer-col ul { display: grid; gap: 12px; }
.footer-col a {
  font-size: 14px;
  color: var(--text-dim);
  transition: color .2s;
}
.footer-col a:hover { color: var(--cyan); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13.5px;
  color: var(--text-dim);
}
.footer-badges { display: flex; gap: 10px; flex-wrap: wrap; }
.footer-badge {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .8px;
  padding: 6px 13px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--text-dim);
}

/* ============================================================
   INTEGRATIONS
   ============================================================ */
.integrations-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.int-card {
  padding: 30px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
  transition: border-color .3s ease, transform .3s ease;
}
.int-card:hover { border-color: rgba(6,182,212,.35); transform: translateY(-4px); }
.int-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.int-card > p { font-size: 14.5px; color: var(--text-muted); margin-bottom: 18px; }
.int-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.int-pill {
  font-size: 13px;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  transition: all .25s ease;
}
.int-pill:hover { border-color: var(--cyan); color: var(--cyan); }
.int-note { text-align: center; margin-top: 40px; font-size: 14.5px; color: var(--text-dim); }
.int-note a { color: var(--cyan); font-weight: 600; }
.int-note a:hover { text-decoration: underline; }

/* ============================================================
   PRICING
   ============================================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.price-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 38px 32px;
  border-radius: var(--radius);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  transition: transform .3s ease, border-color .3s ease;
}
.price-card:hover { transform: translateY(-6px); border-color: rgba(6,182,212,.35); }
.price-card.popular {
  border: 1px solid transparent;
  background:
    linear-gradient(var(--bg-elevated), var(--bg-elevated)) padding-box,
    var(--gradient) border-box;
  box-shadow: 0 24px 64px rgba(37,99,235,.2);
}
.popular-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 999px;
  background: var(--gradient);
  color: #fff;
  white-space: nowrap;
}
.plan-name { font-family: var(--font-display); font-size: 20px; font-weight: 800; }
.plan-desc { font-size: 14px; color: var(--text-muted); margin: 6px 0 24px; }
.price {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 28px;
}
.price span { font-size: 15px; font-weight: 500; color: var(--text-dim); margin-left: 6px; letter-spacing: 0; }
.plan-features { display: grid; gap: 12px; margin-bottom: 34px; flex: 1; align-content: start; }
.plan-features li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14.5px;
  color: var(--text-muted);
}
.plan-features li::before {
  content: '✓';
  color: var(--cyan);
  font-weight: 700;
  flex-shrink: 0;
}
.price-card .btn { width: 100%; }
.pricing-note { text-align: center; margin-top: 36px; font-size: 14px; color: var(--text-dim); }

/* ============================================================
   FAQ
   ============================================================ */
.faq-list { max-width: 840px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  transition: border-color .3s ease;
}
.faq-item[open] { border-color: rgba(6,182,212,.4); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 22px 26px;
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 700;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  display: grid;
  place-items: center;
  color: var(--cyan);
  font-size: 17px;
  font-weight: 500;
  line-height: 1;
  transition: transform .3s ease, border-color .3s ease;
}
.faq-item[open] .faq-icon { transform: rotate(45deg); border-color: var(--cyan); }
.faq-body { padding: 0 26px 24px; font-size: 15px; color: var(--text-muted); max-width: 95%; }

@media (max-width: 1024px) {
  .pricing-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
}
@media (max-width: 768px) {
  .integrations-grid { grid-template-columns: 1fr; }
  .faq-item summary { font-size: 15.5px; padding: 18px 20px; }
  .faq-body { padding: 0 20px 20px; }
}

/* ============================================================
   RESPONSIVE BREAKPOINTS
   ============================================================ */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 56px; }
  .hero { padding-top: 150px; }
  .hero-sub { max-width: 100%; }
  .hero-visual { max-width: 640px; margin: 0 auto; width: 100%; }
  .pillars-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step-connector { display: none; }
  .security-inner, .dev-inner { grid-template-columns: 1fr; gap: 56px; }
  .security-shield { min-height: 380px; }
  .footer-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-brand { grid-column: 1 / -1; }
}

/* Nav collapses to the hamburger below 1060px — six links need the room */
@media (max-width: 1060px) {
  .nav-links, .nav-signin {
    display: none;
  }
  .nav-toggle { display: block; }
  .mobile-menu {
    position: fixed;
    inset: 0;
    background: rgba(11,15,23,.98);
    backdrop-filter: blur(24px);
    z-index: 105;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 28px;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease;
  }
  .mobile-menu.open { opacity: 1; pointer-events: auto; }
  .mobile-menu a {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
  }
  .mobile-menu .btn { margin-top: 12px; }
}

@media (max-width: 768px) {
  .section { padding: 80px 0; }
  .hero { padding: 130px 0 72px; }
  .hero-ctas .btn { flex: 1; min-width: 180px; }
  .shield-ring.r3 { display: none; }
  .shield-badge.b1 { left: 0; }
  .shield-badge.b2 { right: 0; }
  .cta-banner { padding: 64px 24px; }
}

@media (max-width: 540px) {
  .pillars-grid, .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .shield-ring.r2 { display: none; }
  .shield-ring.r1 { width: 240px; height: 240px; }
  .security-shield { min-height: 320px; }
  .brand-logos { gap: 24px; }
  .hero-badge { font-size: 11px; letter-spacing: 1.2px; }
}

@media (min-width: 1061px) {
  .mobile-menu { display: none; }
}

/* ============================================================
   SUBPAGES
   ============================================================ */
.header[data-solid] {
  background: rgba(11,15,23,.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--border);
}
.page-hero { position: relative; padding: 168px 0 64px; overflow: hidden; }
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 55% 50% at 60% 0%, rgba(37,99,235,.14), transparent),
    radial-gradient(ellipse 40% 40% at 10% 30%, rgba(6,182,212,.08), transparent);
  pointer-events: none;
}
.breadcrumb { position: relative; font-size: 13.5px; color: var(--text-dim); margin-bottom: 20px; }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb .sep { margin: 0 8px; }
.page-hero h1 {
  position: relative;
  font-family: var(--font-display);
  font-size: clamp(32px, 4.5vw, 50px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  max-width: 840px;
}
.page-hero .lede { position: relative; margin-top: 18px; font-size: 18px; color: var(--text-muted); max-width: 720px; }
.content-section { padding: 48px 0 96px; }
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.subpage-cta { padding: 0 0 112px; }
.content-h2 { font-family: var(--font-display); font-size: 26px; font-weight: 800; margin: 56px 0 24px; }
.content-h2:first-child { margin-top: 0; }

/* prose (legal pages) */
.prose { max-width: 820px; }
.prose h2 { font-family: var(--font-display); font-size: 23px; font-weight: 700; margin: 44px 0 14px; }
.prose h2:first-of-type { margin-top: 0; }
.prose p { color: var(--text-muted); font-size: 15.5px; margin-bottom: 14px; }
.prose ul { list-style: disc; padding-left: 22px; display: grid; gap: 8px; margin-bottom: 14px; }
.prose li { color: var(--text-muted); font-size: 15.5px; }
.prose strong { color: var(--text); }
.prose a { color: var(--cyan); }
.updated {
  position: relative;
  display: inline-block;
  margin-top: 18px;
  font-size: 13.5px;
  color: var(--text-dim);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 6px 14px;
}

/* status page */
.uptime-banner {
  max-width: 820px;
  margin-bottom: 24px;
  padding: 18px 24px;
  border-radius: var(--radius);
  background: rgba(74,222,128,.07);
  border: 1px solid rgba(74,222,128,.3);
  color: #4ADE80;
  font-weight: 600;
  font-size: 15px;
}
.status-board { max-width: 820px; display: grid; gap: 14px; }
.status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.status-row strong { font-size: 15.5px; }
.status-row .sub { display: block; font-size: 13.5px; color: var(--text-dim); font-weight: 400; margin-top: 2px; }
.status-ok { display: flex; align-items: center; gap: 8px; color: #4ADE80; font-size: 13.5px; font-weight: 600; white-space: nowrap; }
.status-ok::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: #4ADE80; box-shadow: 0 0 10px rgba(74,222,128,.8); }

/* API endpoints */
.endpoint-list { display: grid; gap: 12px; max-width: 900px; margin-bottom: 48px; }
.endpoint {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  flex-wrap: wrap;
}
.endpoint code { font-family: var(--font-mono); font-size: 14px; color: var(--text); }
.endpoint .ep-desc { font-size: 13.5px; color: var(--text-dim); margin-left: auto; }
.method { font-family: var(--font-mono); font-size: 11.5px; font-weight: 700; letter-spacing: .5px; padding: 4px 10px; border-radius: 6px; }
.method.post { background: rgba(6,182,212,.12); color: var(--cyan); border: 1px solid rgba(6,182,212,.35); }
.method.get { background: rgba(74,222,128,.1); color: #4ADE80; border: 1px solid rgba(74,222,128,.3); }

/* data tables */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); max-width: 820px; }
.data-table { width: 100%; border-collapse: collapse; font-size: 14.5px; background: var(--bg-elevated); }
.data-table th {
  text-align: left;
  font-size: 12.5px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--cyan);
  padding: 14px 20px;
  background: rgba(37,99,235,.08);
  border-bottom: 1px solid var(--border-strong);
  white-space: nowrap;
}
.data-table td { padding: 14px 20px; border-bottom: 1px solid var(--border); color: var(--text-muted); }
.data-table tr:last-child td { border-bottom: none; }
.data-table code { font-family: var(--font-mono); color: var(--text); font-size: 13.5px; }

/* contact page */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: start; }
.contact-aside { display: grid; gap: 18px; }
.contact-aside .glass { padding: 24px; }
.contact-aside h3 { font-family: var(--font-display); font-size: 17px; margin-bottom: 6px; }
.contact-aside p { font-size: 14.5px; color: var(--text-muted); }
.contact-aside a { color: var(--cyan); font-weight: 600; }
.contact-form {
  padding: 32px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: grid;
  gap: 18px;
}
.form-field label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 7px; }
.form-field input, .form-field select, .form-field textarea {
  width: 100%;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  padding: 13px 16px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14.5px;
  transition: border-color .2s ease;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { outline: none; border-color: var(--cyan); }
.form-field select option { background: var(--bg-elevated); color: var(--text); }
.form-field textarea { min-height: 130px; resize: vertical; }
.form-note { font-size: 13px; color: var(--text-dim); }
.form-success {
  display: none;
  padding: 14px 18px;
  border-radius: 10px;
  background: rgba(74,222,128,.08);
  border: 1px solid rgba(74,222,128,.35);
  color: #4ADE80;
  font-size: 14px;
}

@media (max-width: 1024px) {
  .cards-3 { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .cards-3 { grid-template-columns: 1fr; }
  .page-hero { padding: 140px 0 48px; }
}

/* ============================================================
   AI / PAYCOLAB INTELLIGENCE
   ============================================================ */
.hero-stats { display: flex; gap: 40px; flex-wrap: wrap; margin-top: 44px; }
.hero-stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-stat span { font-size: 13px; color: var(--text-dim); }

.gradient-animate {
  background: linear-gradient(90deg, #2563EB, #06B6D4, #8B5CF6, #06B6D4, #2563EB);
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradShift 7s linear infinite;
}
@keyframes gradShift { to { background-position: 300% 0; } }

.ai-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.ai-check { font-size: 12px; color: #fff; line-height: 1; }

.copilot-panel {
  position: relative;
  border-radius: var(--radius-lg);
  background: rgba(15,21,34,.7);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(16px);
  box-shadow: 0 32px 80px rgba(0,0,0,.5), 0 0 60px rgba(139,92,246,.08);
  overflow: hidden;
}
.copilot-panel::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(150deg, rgba(139,92,246,.5), rgba(255,255,255,.06) 40%, rgba(6,182,212,.5));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.copilot-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 22px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
}
.copilot-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: #4ADE80;
  box-shadow: 0 0 10px rgba(74,222,128,.8);
  animation: enginePulse 2.5s ease-in-out infinite;
}
.ai-tag {
  margin-left: auto;
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 1.5px;
  padding: 4px 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, #8B5CF6, #06B6D4);
  color: #fff;
}
.copilot-body { padding: 24px; display: grid; gap: 14px; }
.chat-bubble { padding: 14px 18px; border-radius: 14px; font-size: 14px; line-height: 1.6; max-width: 88%; }
.chat-user {
  margin-left: auto;
  background: rgba(37,99,235,.18);
  border: 1px solid rgba(37,99,235,.4);
  color: var(--text);
  border-bottom-right-radius: 4px;
}
.chat-ai {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  border-bottom-left-radius: 4px;
}
.chat-ai strong { color: var(--text); }
.chat-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.chat-chip {
  font-size: 12.5px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(6,182,212,.4);
  color: var(--cyan);
  background: rgba(6,182,212,.07);
}

@media (max-width: 1024px) { .ai-inner { grid-template-columns: 1fr; gap: 48px; } }
@media (max-width: 540px) { .hero-stats { gap: 24px; } .hero-stat strong { font-size: 22px; } }

/* Two-card non-committal pricing layout */
.pricing-grid.two { grid-template-columns: repeat(2, 1fr); max-width: 900px; margin: 0 auto; }
@media (max-width: 1024px) { .pricing-grid.two { grid-template-columns: 1fr; max-width: 480px; } }

/* ============================================================
   ACCESSIBILITY & ROBUSTNESS
   ============================================================ */
/* Mobile hint that the capability matrix scrolls sideways */
.matrix-hint { display: none; }
@media (max-width: 768px) {
  .matrix-hint {
    display: block;
    text-align: center;
    font-size: 12.5px;
    color: var(--text-dim);
    margin-top: 12px;
  }
}

/* Respect users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; }
}