/* GSC-EM.COM — Dark AI aesthetic | Accent: #60a5fa (Baby Blue) | Signal Green: #22c55e | BG: #000000 (Pure Black) */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { background: #000000; color: #ffffff; font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; font-size: 16px; line-height: 1.6; overflow-x: hidden; }
a { color: #60a5fa; text-decoration: none; transition: color 0.2s ease; }
a:hover { color: #93c5fd; }
::selection { background: rgba(96, 165, 250, 0.3); color: #fff; }

/* NAV */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(0, 0, 0, 0.85); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid rgba(255,255,255,0.06); }
.nav-inner { max-width: 1200px; margin: 0 auto; padding: 0 32px; height: 64px; display: flex; align-items: center; justify-content: space-between; }
.nav-brand { display: flex; align-items: center; text-decoration: none; color: inherit; }
.nav-logo { height: 36px; width: auto; display: block; opacity: 0.95; transition: opacity 0.2s ease; }
.nav-logo:hover { opacity: 1; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { font-size: 13px; font-weight: 500; color: rgba(255,255,255,0.5); text-decoration: none; transition: color 0.2s ease; letter-spacing: 0.2px; }
.nav-links a:hover { color: #fff; }

/* HERO */
.hero { padding: 140px 32px 80px; text-align: center; position: relative; overflow: hidden; }
.hero-glow { position: absolute; top: -100px; left: 50%; transform: translateX(-50%); width: 800px; height: 500px; background: radial-gradient(ellipse, rgba(96, 165, 250, 0.08) 0%, transparent 70%); pointer-events: none; }
.hero-content { max-width: 800px; margin: 0 auto; position: relative; z-index: 1; }
h1 { font-size: 56px; font-weight: 800; line-height: 1.1; letter-spacing: -1.5px; margin-bottom: 24px; }
.highlight { color: #22c55e; }
.hero-subtitle { font-size: 17px; line-height: 1.7; color: rgba(255,255,255,0.85); max-width: 720px; margin: 0 auto; }

/* OPENER BAND */
.opener-band { padding: 60px 32px 70px; text-align: center; border-top: 1px solid rgba(96, 165, 250, 0.1); border-bottom: 1px solid rgba(255, 255, 255, 0.04); background: radial-gradient(ellipse at center top, rgba(96, 165, 250, 0.04) 0%, transparent 70%); }
.opener-inner { max-width: 800px; margin: 0 auto; }
.opener-line { font-size: 22px; font-weight: 600; letter-spacing: -0.4px; color: rgba(255,255,255,0.85); margin-bottom: 16px; line-height: 1.4; }
.opener-line .highlight { color: #22c55e; }
.opener-statement { font-size: 17px; font-weight: 500; color: rgba(255,255,255,0.7); max-width: 720px; margin: 0 auto 32px; line-height: 1.6; }
.opener-langs { font-family: 'JetBrains Mono', monospace; font-size: 12px; letter-spacing: 1.5px; color: rgba(255,255,255,0.4); margin-top: 24px; }
.opener-langs a { color: rgba(255,255,255,0.5); text-decoration: none; transition: color 0.2s ease; padding: 0 4px; }
.opener-langs a:hover { color: #60a5fa; }

/* PRESS BAR */
.press-bar { padding: 40px 0 32px; text-align: center; border-top: 1px solid rgba(255,255,255,0.04); border-bottom: 1px solid rgba(255,255,255,0.04); overflow: hidden; }
.press-bar__label { font-size: 11px; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; color: rgba(255,255,255,0.3); margin-bottom: 4px; }
.press-bar__stats { font-size: 13px; color: rgba(255,255,255,0.55); margin-bottom: 24px; }
.press-bar__stats span { color: #60a5fa; font-weight: 600; }

/* SECTIONS */
.section { padding: 80px 32px; }
.section-inner { max-width: 1000px; margin: 0 auto; text-align: center; }
.section-label { display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; color: #60a5fa; margin-bottom: 12px; }
.section h2 { font-size: 32px; font-weight: 700; letter-spacing: -0.5px; margin-bottom: 16px; }
.section-desc { color: rgba(255,255,255,0.75); font-size: 14px; font-family: 'JetBrains Mono', monospace; margin-bottom: 32px; line-height: 1.7; }

/* ENDPOINTS */
.endpoints-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-top: 32px; }
.endpoint-card { display: flex; align-items: center; justify-content: center; padding: 20px; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.06); border-radius: 12px; font-family: 'JetBrains Mono', monospace; font-size: 14px; font-weight: 500; color: rgba(255,255,255,0.7); transition: all 0.25s ease; text-align: center; }
.endpoint-card:hover { background: rgba(96, 165, 250, 0.06); border-color: rgba(96, 165, 250, 0.2); color: #60a5fa; }

/* SKU */
.sku-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 20px; margin-top: 8px; }
.sku-card { background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.06); border-radius: 12px; padding: 24px; text-align: left; transition: border-color 0.25s ease; }
.sku-card:hover { border-color: rgba(96, 165, 250, 0.2); }
.sku-gtin { font-family: 'JetBrains Mono', monospace; font-size: 12px; color: rgba(255,255,255,0.35); margin-bottom: 8px; letter-spacing: 0.5px; }
.sku-name { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.sku-details { font-size: 13px; color: rgba(255,255,255,0.45); margin-bottom: 12px; }

/* SIGNAL BADGE */
.signal-badge { display: inline-block; padding: 4px 12px; background: rgba(34, 197, 94, 0.1); border: 1px solid rgba(34, 197, 94, 0.25); border-radius: 6px; font-family: 'JetBrains Mono', monospace; font-size: 11px; font-weight: 600; color: #22c55e; letter-spacing: 0.5px; }

/* GOVERNANCE */
.governance-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-top: 24px; }
.governance-card { background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.06); border-radius: 12px; padding: 24px; text-align: left; }
.governance-role { font-size: 11px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: #60a5fa; margin-bottom: 8px; }
.governance-name { font-size: 18px; font-weight: 600; margin-bottom: 12px; }
.card-body { font-size: 13px; line-height: 1.65; color: rgba(255,255,255,0.6); }

/* CAPABILITY */
.capability-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-top: 32px; text-align: left; }
.capability-card { background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.06); border-radius: 12px; padding: 28px 24px; transition: border-color 0.25s ease, transform 0.25s ease; }
.capability-card:hover { border-color: rgba(96, 165, 250, 0.25); transform: translateY(-2px); }
.capability-num { font-family: 'JetBrains Mono', monospace; font-size: 12px; font-weight: 600; color: rgba(96, 165, 250, 0.6); letter-spacing: 1.5px; margin-bottom: 12px; }
.capability-title { font-size: 18px; font-weight: 700; letter-spacing: -0.3px; margin-bottom: 12px; color: #ffffff; }
.capability-body { font-size: 14px; line-height: 1.65; color: rgba(255,255,255,0.65); }

/* SECURITY */
.security-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; margin-top: 24px; text-align: left; }
.security-card { background: rgba(255,255,255,0.025); border: 1px solid rgba(255,255,255,0.06); border-radius: 10px; padding: 24px 22px; transition: border-color 0.25s ease, background 0.25s ease; }
.security-card:hover { border-color: rgba(96, 165, 250, 0.2); background: rgba(96, 165, 250, 0.02); }
.security-mark { font-size: 14px; color: rgba(96, 165, 250, 0.55); margin-bottom: 10px; letter-spacing: 0.5px; }
.security-title { font-size: 15px; font-weight: 700; color: #ffffff; margin-bottom: 10px; letter-spacing: -0.2px; }
.security-body { font-size: 13px; line-height: 1.6; color: rgba(255,255,255,0.6); }

/* NEWSLETTER */
.newsletter-section { border-top: 1px solid rgba(255,255,255,0.04); }
.newsletter-form { max-width: 480px; margin: 24px auto 0; }
.newsletter-row { display: flex; gap: 0; border-radius: 8px; overflow: hidden; border: 1px solid rgba(255,255,255,0.1); transition: border-color 0.2s ease; }
.newsletter-row:focus-within { border-color: rgba(96, 165, 250, 0.4); }
.newsletter-input { flex: 1; padding: 14px 16px; background: rgba(255,255,255,0.04); border: none; font-family: inherit; font-size: 14px; color: #fff; outline: none; }
.newsletter-input::placeholder { color: rgba(255,255,255,0.3); }
.newsletter-btn { padding: 14px 28px; background: #60a5fa; border: none; font-family: inherit; font-size: 14px; font-weight: 600; color: #000000; cursor: pointer; transition: background 0.2s ease; white-space: nowrap; }
.newsletter-btn:hover { background: #3b82f6; }

/* CONTACT */
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 32px; text-align: left; }
.contact-form { display: flex; flex-direction: column; gap: 12px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.contact-form input, .contact-form select, .contact-form textarea { padding: 12px 16px; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1); border-radius: 8px; font-family: inherit; font-size: 14px; color: #fff; outline: none; transition: border-color 0.2s ease; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: rgba(96, 165, 250, 0.4); }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: rgba(255,255,255,0.3); }
.contact-form select { color: rgba(255,255,255,0.3); -webkit-appearance: none; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23ffffff' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; }
.contact-form select:valid { color: #fff; }
.contact-form select option { background: #1a1a1a; color: #ffffff; }
.contact-form button { padding: 14px 32px; background: #60a5fa; border: none; border-radius: 8px; font-family: inherit; font-size: 14px; font-weight: 600; color: #000000; cursor: pointer; transition: background 0.2s ease; }
.contact-form button:hover { background: #3b82f6; }
.form-email { font-size: 13px; color: rgba(255,255,255,0.35); margin-top: 4px; }
.contact-offices { display: flex; flex-direction: column; gap: 16px; }
.contact-card { background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.06); border-radius: 12px; padding: 20px; }
.contact-region { font-size: 11px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: #60a5fa; margin-bottom: 4px; }
.contact-city { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.contact-address { font-size: 13px; color: rgba(255,255,255,0.45); line-height: 1.5; }

/* FOOTER */
.footer { border-top: 1px solid rgba(255,255,255,0.06); padding: 40px 32px 60px; text-align: center; }
.footer-inner { max-width: 1000px; margin: 0 auto; position: relative; }
.footer-brand { font-weight: 700; font-size: 14px; margin-bottom: 6px; }
.footer-section-label { font-size: 10px; font-weight: 600; letter-spacing: 1.8px; text-transform: uppercase; color: rgba(96, 165, 250, 0.55); margin-top: 18px; margin-bottom: 8px; }
.footer-line { font-size: 12px; color: rgba(255,255,255,0.3); font-family: 'JetBrains Mono', monospace; margin-bottom: 8px; }
.footer-social a { font-size: 13px; color: rgba(255,255,255,0.4); }
.footer-social a:hover { color: #60a5fa; }
.footer-attribution { position: absolute; bottom: 0; right: 0; font-size: 11px; color: rgba(255,255,255,0.4); }

/* RESPONSIVE */
@media (max-width: 768px) {
  .nav-links { display: none; }
  h1 { font-size: 36px; }
  .hero { padding: 120px 20px 60px; }
  .section { padding: 60px 20px; }
  .contact-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .sku-grid { grid-template-columns: 1fr; }
  .governance-grid { grid-template-columns: 1fr; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-card { padding: 24px 20px; }
  .security-grid { grid-template-columns: 1fr; }
  .newsletter-row { flex-direction: column; }
  .newsletter-btn { width: 100%; }
  .opener-line { font-size: 18px; }
  .opener-statement { font-size: 15px; }
  .opener-band { padding: 40px 20px 50px; }
  .footer-attribution { position: static; text-align: center; margin-top: 20px; }
}
@media (max-width: 480px) {
  h1 { font-size: 28px; }
  .hero-subtitle { font-size: 15px; }
  .section h2 { font-size: 24px; }
}

/* ===============================================================
   v1.1.0 PATCH — AIO Division top banner + §09 AIO Division CTA
=============================================================== */

/* Top banner — visible site-wide, drives traffic to gsc-rail.ai */
.aio-top-banner {
  background: #0a0a0a;
  color: #e5e5e5;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.5px;
  padding: 8px 24px;
  text-align: center;
  border-bottom: 1px solid #1a1a1a;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.aio-top-banner-text {
  color: #999;
}
.aio-top-banner-text strong {
  color: #e5e5e5;
}
.aio-top-banner-link {
  color: #5fffaa;
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px dotted #5fffaa;
}
.aio-top-banner-link:hover {
  color: #80ffc0;
  border-bottom-color: #80ffc0;
}

/* §09 AIO Division section — distinct dark surface, different from parent site beige */
.section-aio {
  background: #0a0a0a;
  color: #e5e5e5;
  padding: 80px 0;
}
.section-aio .section-label {
  color: #5fffaa;
}
.section-aio h2 {
  color: #ffffff;
}
.section-aio h3 {
  color: #ffffff;
  font-size: 22px;
  margin-bottom: 12px;
}
.section-aio .section-desc {
  color: #c0c0c0;
}
.section-aio code {
  background: #1a1a1a;
  color: #5fffaa;
  padding: 2px 6px;
  border-radius: 2px;
  font-size: 0.9em;
}
.section-aio a {
  color: #80c0ff;
}
.section-aio a:hover {
  color: #a0d0ff;
}
.section-aio strong {
  color: #ffffff;
}
.aio-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 1.5px;
  color: #5fffaa;
  margin: 16px 0 24px;
}
.aio-dot {
  width: 8px;
  height: 8px;
  background: #5fffaa;
  border-radius: 50%;
  animation: aio-pulse 2s ease-in-out infinite;
}
@keyframes aio-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.aio-accent {
  color: #5fffaa;
}
.aio-stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 36px 0;
}
.aio-stat {
  background: #111;
  border: 1px solid #222;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.aio-stat-num {
  font-family: 'Inter', sans-serif;
  font-size: 44px;
  font-weight: 800;
  color: #5fffaa;
  line-height: 1;
  letter-spacing: -1px;
}
.aio-stat-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 1.2px;
  color: #888;
  line-height: 1.4;
}
.aio-catalog-block {
  background: #111;
  border: 1px solid #222;
  padding: 32px;
  margin: 32px 0;
  border-radius: 2px;
}
.aio-catalog-block h3 {
  margin-top: 0;
}
.aio-catalog-block p {
  color: #c0c0c0;
  line-height: 1.6;
  margin-bottom: 0;
}
.aio-cta-row {
  margin-top: 32px;
  text-align: center;
}
.aio-cta-button {
  display: inline-block;
  padding: 16px 40px;
  background: #5fffaa;
  color: #0a0a0a !important;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-decoration: none;
  border: 1px solid #5fffaa;
  border-radius: 2px;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
}
.aio-cta-button:hover {
  background: transparent;
  color: #5fffaa !important;
  border-color: #5fffaa;
}
.aio-cta-button:active {
  transform: scale(0.98);
}
@media (max-width: 720px) {
  .aio-top-banner { font-size: 10px; }
  .aio-stat-num { font-size: 36px; }
  .aio-cta-button { font-size: 12px; padding: 14px 24px; }
}