/* ─── RESET & BASE ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* ── Brand palette (extracted from LanX Logo) ── */
  --navy-900: #0b1528;   /* deepest navy — footer, dark panels */
  --navy-800: #162244;   /* "Lan" text navy — primary brand dark */
  --navy-700: #1a2d5e;
  --navy-600: #1e3a8a;
  --blue-600: #1d4ed8;
  --blue-500: #2563eb;   /* trend-line / X right stroke — primary accent */
  --blue-400: #3b82f6;
  --blue-300: #93c5fd;
  --blue-100: #dbeafe;
  --blue-50:  #eff6ff;

  /* ── Neutrals ── */
  --gray-50:  #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  /* ── Radii & shadows ── */
  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow:    0 4px 16px rgba(0,0,0,.10);
  --shadow-lg: 0 10px 40px rgba(0,0,0,.14);
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--gray-800);
  background: #fff;
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* ─── TYPOGRAPHY ─── */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: 1.2rem; }

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px; font-weight: 600; font-size: 0.95rem;
  border-radius: var(--radius-sm); border: 2px solid transparent;
  cursor: pointer; text-decoration: none; transition: all .18s ease;
  padding: 10px 22px; white-space: nowrap;
}
.btn-primary {
  background: var(--blue-500); color: #fff; border-color: var(--blue-500);
}
.btn-primary:hover {
  background: var(--blue-600); border-color: var(--blue-600); transform: translateY(-1px);
}
.btn-outline {
  background: transparent; color: var(--blue-500); border-color: var(--blue-500);
}
.btn-outline:hover { background: var(--blue-50); transform: translateY(-1px); }
.btn-lg { padding: 14px 30px; font-size: 1rem; }
.btn-full { width: 100%; }

.btn-card {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 0.88rem; font-weight: 600; color: var(--navy-800);
  text-decoration: none; border: none; background: none;
  cursor: pointer; transition: gap .15s ease, color .15s;
  padding: 0; margin-top: auto;
}
.btn-card:hover { gap: 8px; color: var(--blue-500); }
.btn-card--featured { color: var(--blue-500); }
.btn-card--featured:hover { color: var(--blue-600); }

/* ─── HEADER ─── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--gray-200);
}
.header-inner {
  display: flex; align-items: center; gap: 32px;
  height: 84px;
}
.logo {
  text-decoration: none; flex-shrink: 0;
  display: flex; align-items: center;
}
.logo-img {
  height: 64px; width: auto; display: block;
}

/* Footer text logo */
.logo--footer {
  font-size: 1.3rem; font-weight: 800; align-items: baseline;
}
.logo-lan     { color: #fff; }
.logo-x       { color: var(--blue-400); }
.logo-insights {
  color: rgba(255,255,255,.45); font-size: 0.85rem; font-weight: 600;
  margin-left: 6px; letter-spacing: 0.05em; text-transform: uppercase;
}

.primary-nav { display: flex; gap: 4px; margin-left: auto; }
.primary-nav a {
  color: var(--gray-600); font-size: 0.92rem; font-weight: 500;
  text-decoration: none; padding: 6px 12px; border-radius: var(--radius-sm);
  transition: background .15s, color .15s;
}
.primary-nav a:hover { background: var(--gray-100); color: var(--gray-900); }
.primary-nav a.active {
  background: var(--blue-50); color: var(--navy-800); font-weight: 600;
}
.nav-cta { flex-shrink: 0; }
.mobile-menu-toggle {
  display: none; background: none; border: none; cursor: pointer;
  font-size: 1.4rem; color: var(--gray-700);
}

/* ─── HERO ─── */
.hero {
  background: linear-gradient(135deg, #ffffff 0%, #f0f5ff 45%, #dbeafe 100%);
  padding: 100px 0 80px;
  overflow: hidden; position: relative;
}
.hero-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  align-items: center;
  position: relative; z-index: 1;
}
.hero-badge {
  display: inline-block; background: var(--blue-100); color: var(--navy-700);
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 6px 14px; border-radius: 100px; margin-bottom: 20px;
}
.hero-headline { color: var(--navy-800); margin-bottom: 18px; letter-spacing: -0.02em; }
.hero-sub { color: var(--gray-600); font-size: 1.1rem; margin-bottom: 36px; max-width: 480px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats { display: flex; align-items: center; gap: 28px; }
.stat-item { display: flex; flex-direction: column; }
.stat-num {
  font-size: 1.8rem; font-weight: 800; color: var(--blue-500); line-height: 1;
}
.stat-num--sm { font-size: 1.1rem; letter-spacing: -0.01em; }
.stat-label { font-size: 0.78rem; color: var(--gray-500); font-weight: 500; margin-top: 3px; }
.stat-divider { width: 1px; height: 36px; background: var(--gray-300); }
.hero-graphic { display: flex; align-items: center; justify-content: center; }
.hero-graphic svg { width: 100%; max-width: 520px; height: auto; }

/* ─── SECTION BASE ─── */
.section { padding: 96px 0; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header p {
  color: var(--gray-500); font-size: 1.05rem; margin-top: 14px;
  max-width: 600px; margin-left: auto; margin-right: auto;
}
.section-header h2 { color: var(--navy-800); margin-top: 8px; }
.section-tag {
  display: inline-block; font-size: 0.8rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--blue-500);
  background: var(--blue-50); padding: 4px 14px; border-radius: 100px;
}

/* ─── SERVICES ─── */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); padding: 32px;
  display: flex; flex-direction: column; gap: 14px;
  transition: box-shadow .2s, transform .2s;
  position: relative; overflow: hidden;
}
.service-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.service-card--featured {
  border-color: var(--blue-400);
  box-shadow: 0 0 0 2px var(--blue-400);
}

.card-accent {
  position: absolute; top: 0; left: 0; right: 0; height: 4px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.accent-navy { background: linear-gradient(90deg, var(--navy-800), var(--navy-600)); }
.accent-blue { background: linear-gradient(90deg, var(--blue-500), var(--blue-400)); }
.accent-navy-blue { background: linear-gradient(90deg, var(--navy-700), var(--blue-500)); }

.card-badge {
  position: absolute; top: 16px; right: 16px;
  background: var(--blue-500); color: #fff;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase;
  padding: 3px 10px; border-radius: 100px;
}
.card-icon {
  width: 48px; height: 48px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
}
.card-icon svg { width: 24px; height: 24px; }
.icon-navy      { background: #eef1f8; color: var(--navy-800); }
.icon-blue      { background: var(--blue-50); color: var(--blue-500); }
.icon-navy-blue { background: #edf2ff; color: var(--navy-700); }

.card-tag {
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--gray-400);
}
.service-card h3 { color: var(--navy-800); font-size: 1.15rem; }
.card-target { font-size: 0.82rem; color: var(--gray-500); }
.card-benefits { list-style: none; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card-benefits li {
  font-size: 0.9rem; color: var(--gray-600);
  padding-left: 20px; position: relative;
}
.card-benefits li::before {
  content: "✓"; position: absolute; left: 0;
  color: var(--blue-500); font-weight: 700; font-size: 0.82rem;
}

/* ─── FOUNDERS ─── */
.section--founders { background: var(--gray-50); }

.founders-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
}
.founder-card {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); padding: 32px;
  display: flex; gap: 24px; align-items: flex-start;
  transition: box-shadow .2s, transform .2s;
}
.founder-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }

.founder-photo-wrap { flex-shrink: 0; }
.founder-photo {
  width: 88px; height: 88px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.founder-photo-img { width: 100%; height: 100%; object-fit: cover; display: block; }
.founder-initials {
  font-size: 1.4rem; font-weight: 800; color: #fff; letter-spacing: -0.02em;
}
.founder-photo--1 { background: linear-gradient(135deg, var(--navy-800), var(--navy-700)); }
.founder-photo--2 { background: linear-gradient(135deg, var(--blue-600), var(--blue-400)); }
.founder-photo--3 { background: linear-gradient(135deg, var(--navy-700), var(--blue-500)); }
.founder-photo--4 { background: linear-gradient(135deg, #0e3a6e, var(--blue-500)); }

.founder-body { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.founder-header { display: flex; flex-direction: column; gap: 3px; }
.founder-name { font-size: 1.1rem; font-weight: 700; color: var(--navy-800); margin: 0; }
.founder-cred { font-size: 0.8rem; font-weight: 600; color: var(--blue-500); margin: 0; }
.founder-bio  { font-size: 0.88rem; color: var(--gray-600); line-height: 1.65; margin: 0; }
.founder-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 2px; }
.founder-tags span {
  background: var(--blue-50); color: var(--navy-700);
  font-size: 0.72rem; font-weight: 600; padding: 3px 10px; border-radius: 100px;
  border: 1px solid var(--blue-100);
}

@media (max-width: 900px) {
  .founders-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .founder-card { flex-direction: column; align-items: center; text-align: center; }
  .founder-tags { justify-content: center; }
}

/* ─── CAPABILITIES ─── */
.section--dark { background: var(--navy-900); color: #fff; }
.section-header--light h2 { color: #fff; }
.section-header--light p  { color: rgba(255,255,255,.5); }
.section-tag--light {
  background: rgba(37,99,235,.25); color: var(--blue-300);
}

.capabilities-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px;
  margin-bottom: 48px;
}
.cap-card {
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-lg); padding: 28px;
  transition: background .2s, border-color .2s;
}
.cap-card:hover {
  background: rgba(255,255,255,.07);
  border-color: rgba(37,99,235,.45);
}
.cap-icon {
  width: 44px; height: 44px; background: rgba(37,99,235,.2);
  border-radius: var(--radius); display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px; color: var(--blue-400);
}
.cap-icon svg { width: 22px; height: 22px; }
.cap-card h3 { color: #fff; margin-bottom: 8px; font-size: 1.05rem; }
.cap-card p  { color: rgba(255,255,255,.5); font-size: 0.92rem; }

.tech-strip {
  display: flex; align-items: center; flex-wrap: wrap; gap: 10px;
  padding: 20px 24px; background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.07); border-radius: var(--radius);
}
.tech-label {
  color: rgba(255,255,255,.4); font-size: 0.82rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.06em;
}
.tech-pill {
  background: rgba(37,99,235,.2); color: var(--blue-300);
  padding: 4px 12px; border-radius: 100px; font-size: 0.82rem; font-weight: 600;
}

/* ─── CASE STUDIES ─── */
.case-studies-grid {
  display: grid; grid-template-columns: 1.6fr 1fr; gap: 24px; align-items: start;
}
.case-card {
  border: 1px solid var(--gray-200); border-radius: var(--radius-lg);
  padding: 36px 32px; display: flex; flex-direction: column; gap: 18px;
}
.case-card--placeholder {
  border: 2px dashed var(--gray-200); align-items: center; text-align: center;
  justify-content: center; min-height: 340px;
}
.case-card--live {
  border-color: var(--blue-200, #bfdbfe);
  box-shadow: 0 0 0 1px var(--blue-200, #bfdbfe), var(--shadow-sm);
}
.case-card-header {
  display: flex; align-items: center; justify-content: space-between;
}
.case-icon {
  width: 48px; height: 48px; background: var(--blue-50);
  border-radius: var(--radius); display: flex; align-items: center; justify-content: center;
  color: var(--blue-500);
}
.case-icon svg { width: 24px; height: 24px; }

.case-badge {
  background: var(--navy-800); color: #fff;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 4px 12px; border-radius: 100px;
}
.case-badge--live  { background: var(--blue-500); }
.case-badge--outline {
  background: transparent; border: 2px solid var(--gray-300); color: var(--gray-500);
}
.case-placeholder-icon { color: var(--gray-400); }
.case-placeholder-icon svg { width: 48px; height: 48px; }

.case-card h3 { color: var(--navy-800); font-size: 1.2rem; }
.case-prototype-note {
  font-size: 0.82rem; font-weight: 600; color: var(--blue-500);
  border-left: 3px solid var(--blue-400); padding-left: 10px;
  line-height: 1.5;
}
.case-demo-img-wrap {
  border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--gray-200);
  box-shadow: 0 2px 12px rgba(22,34,68,.12);
  display: flex; flex-direction: column;
}
.case-demo-img {
  width: 100%; height: auto; display: block;
}
.case-demo-caption {
  font-size: 0.75rem; color: var(--gray-500); font-style: italic;
  padding: 6px 12px; background: var(--gray-50);
  border-top: 1px solid var(--gray-200);
  text-align: center;
}
.case-desc    { color: var(--gray-600); font-size: 0.92rem; line-height: 1.65; }
.case-dataset {
  color: var(--gray-500); font-size: 0.85rem;
  background: var(--gray-100); border-radius: var(--radius-sm);
  padding: 10px 14px;
}
.case-dataset strong { color: var(--navy-800); }

.case-capabilities {
  list-style: none; display: flex; flex-direction: column; gap: 12px;
}
.case-capabilities li {
  font-size: 0.88rem; color: var(--gray-600); line-height: 1.5;
  display: flex; gap: 10px; align-items: flex-start;
}
.cap-label {
  flex-shrink: 0; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.05em;
  text-transform: uppercase; color: var(--blue-500);
  background: var(--blue-50); padding: 2px 10px; border-radius: 100px;
  margin-top: 2px;
}
.case-footer {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px; padding-top: 4px;
  border-top: 1px solid var(--gray-200); margin-top: 4px;
}
.case-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.case-tags span {
  background: var(--blue-100); color: var(--navy-700);
  font-size: 0.72rem; font-weight: 600; padding: 3px 10px; border-radius: 100px;
}
.case-card p { color: var(--gray-500); font-size: 0.92rem; max-width: 320px; }

/* ─── CONTACT ─── */
.section--contact {
  background: var(--gray-50); border-top: 1px solid var(--gray-200);
}
.contact-inner {
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 72px; align-items: start;
}
.contact-copy .section-tag { margin-bottom: 14px; display: inline-block; }
.contact-copy h2 { margin-bottom: 14px; color: var(--navy-800); }
.contact-copy > p { color: var(--gray-600); margin-bottom: 32px; }
.contact-info-list { display: flex; flex-direction: column; gap: 14px; }
.contact-info-item {
  display: flex; align-items: center; gap: 10px;
  color: var(--gray-700); font-size: 0.92rem;
}
.contact-info-item svg { width: 18px; height: 18px; color: var(--blue-500); flex-shrink: 0; }

.contact-form {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); padding: 36px; box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column; gap: 20px;
}
.form-row { width: 100%; }
.form-row--split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--gray-700); }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 10px 14px; border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm); font-size: 0.95rem;
  font-family: inherit; color: var(--gray-800);
  transition: border-color .15s, box-shadow .15s;
  background: #fff;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none; border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.form-group textarea { resize: vertical; }
.form-note { text-align: center; font-size: 0.8rem; color: var(--gray-400); }

/* ─── FOOTER ─── */
.site-footer { background: var(--navy-900); color: rgba(255,255,255,.45); }
.footer-inner {
  display: grid; grid-template-columns: 1.6fr 1fr; gap: 64px;
  padding: 64px 0 48px;
}
.footer-brand { display: flex; flex-direction: column; gap: 14px; }
.footer-brand > p { font-size: 0.9rem; max-width: 280px; }
.social-links { display: flex; gap: 12px; margin-top: 6px; }
.social-links a {
  width: 36px; height: 36px; background: rgba(255,255,255,.06);
  border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.45); text-decoration: none;
  transition: background .15s, color .15s;
}
.social-links a:hover { background: var(--blue-500); color: #fff; }
.social-links svg { width: 16px; height: 16px; }

.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h4 { color: #fff; font-size: 0.85rem; margin-bottom: 4px; }
.footer-col a {
  color: rgba(255,255,255,.45); font-size: 0.88rem; text-decoration: none;
  transition: color .15s;
}
.footer-col a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.07); padding: 20px 0;
}
.footer-bottom .container {
  display: flex; justify-content: center; align-items: center;
  flex-wrap: wrap; gap: 12px;
}
.footer-bottom p { font-size: 0.82rem; }

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .hero-inner        { grid-template-columns: 1fr; }
  .hero-graphic      { display: none; }
  .services-grid     { grid-template-columns: 1fr; }
  .capabilities-grid { grid-template-columns: 1fr; }
  .case-studies-grid { grid-template-columns: 1fr; }
  .contact-inner     { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner      { grid-template-columns: 1fr; gap: 40px; }
  .footer-links      { grid-template-columns: repeat(2, 1fr); }
  .mobile-menu-toggle { display: block; margin-left: auto; }

  .primary-nav {
    display: none; flex-direction: column; gap: 4px;
    position: absolute; top: 84px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--gray-200);
    padding: 16px 24px; box-shadow: var(--shadow);
  }
  .primary-nav.nav-open { display: flex; }
  .nav-cta { display: none; }
}
@media (max-width: 560px) {
  .form-row--split { grid-template-columns: 1fr; }
  .hero-stats      { flex-direction: column; align-items: flex-start; }
  .stat-divider    { width: 40px; height: 1px; }
  .hero-actions    { flex-direction: column; }
  .footer-links    { grid-template-columns: 1fr; }
}