/* InfoSync — light enterprise cloud aesthetic. All styles self-contained. */

:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --ink: #10233f;
  --ink-soft: #46618a;
  --ink-faint: #7d90ad;
  --line: #e3eaf4;
  --brand: #2f6bff;
  --brand-2: #0aa5c8;
  --brand-deep: #1d4ed8;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 35, 63, .05), 0 8px 28px -12px rgba(16, 35, 63, .14);
  --shadow-lg: 0 2px 6px rgba(16, 35, 63, .06), 0 24px 60px -20px rgba(16, 35, 63, .22);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; letter-spacing: -.02em; }
.brand-mark { width: 30px; height: 30px; }
.site-nav { display: flex; gap: 26px; margin-left: auto; font-size: 14.5px; font-weight: 500; color: var(--ink-soft); }
.site-nav a:hover { color: var(--brand); }
.header-inner .btn-sm { flex-shrink: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 22px; border-radius: 10px;
  font-weight: 600; font-size: 15px; cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn-primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff; box-shadow: 0 6px 18px -6px rgba(47, 107, 255, .45);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 24px -6px rgba(47, 107, 255, .55); }
.btn-ghost { background: var(--surface); color: var(--ink); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(720px 340px at 85% -10%, rgba(10, 165, 200, .10), transparent 60%),
    radial-gradient(680px 380px at -10% 20%, rgba(47, 107, 255, .10), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px;
  align-items: center; padding: 88px 24px 96px;
}
.eyebrow {
  font-size: 12.5px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--brand-deep); margin-bottom: 14px;
}
.hero-copy h1 {
  font-size: clamp(38px, 4.6vw, 56px); font-weight: 800;
  line-height: 1.08; letter-spacing: -.03em; margin-bottom: 20px;
}
.hero-sub { font-size: 17.5px; color: var(--ink-soft); max-width: 520px; margin-bottom: 30px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 34px; }
.hero-ticks { list-style: none; display: flex; gap: 22px; flex-wrap: wrap; }
.hero-ticks li {
  font-size: 13.5px; font-weight: 600; color: var(--ink-soft);
  padding-left: 20px; position: relative;
}
.hero-ticks li::before {
  content: ''; position: absolute; left: 0; top: 5px;
  width: 11px; height: 11px; border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
}
.hero-art { display: flex; justify-content: center; }
.hero-svg { width: 100%; max-width: 520px; height: auto; }

/* ---------- Stats ---------- */
.stats { background: var(--surface); border-bottom: 1px solid var(--line); }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  padding: 30px 24px; gap: 20px;
}
.stat { text-align: center; }
.stat-num {
  display: block; font-size: 30px; font-weight: 800; letter-spacing: -.02em;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat-label { font-size: 13.5px; color: var(--ink-faint); font-weight: 500; }

/* ---------- Sections ---------- */
.section { padding: 88px 0; }
.section-alt { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-title { font-size: clamp(28px, 3vw, 38px); font-weight: 800; letter-spacing: -.025em; line-height: 1.15; margin-bottom: 14px; }
.section-sub { font-size: 16.5px; color: var(--ink-soft); max-width: 640px; margin-bottom: 44px; }
.section-sub.wide { max-width: 820px; }

/* ---------- Cards ---------- */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px; box-shadow: var(--shadow);
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card-icon {
  width: 46px; height: 46px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(47,107,255,.10), rgba(10,165,200,.10));
  color: var(--brand-deep); margin-bottom: 20px;
}
.card-icon svg { width: 24px; height: 24px; }
.card h3 { font-size: 19px; font-weight: 700; letter-spacing: -.015em; margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--ink-soft); margin-bottom: 18px; }
.card-tag {
  display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: .04em;
  color: var(--brand-deep); background: rgba(47, 107, 255, .08);
  padding: 4px 10px; border-radius: 999px;
}

/* ---------- Pricing ---------- */
.plan-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.plan-card {
  position: relative; display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px; box-shadow: var(--shadow);
  transition: transform .18s ease, box-shadow .18s ease;
}
.plan-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.plan-card.popular { border-color: var(--brand); box-shadow: var(--shadow-lg); }
.plan-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  font-size: 12px; font-weight: 700; letter-spacing: .06em; color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  padding: 4px 14px; border-radius: 999px; white-space: nowrap;
}
.plan-name { font-size: 17px; font-weight: 700; letter-spacing: -.01em; }
.plan-desc { font-size: 13px; color: var(--ink-faint); margin: 4px 0 18px; }
.plan-price { display: flex; align-items: baseline; gap: 6px; margin-bottom: 4px; }
.plan-price .amount { font-size: 34px; font-weight: 800; letter-spacing: -.03em; }
.plan-price .cycle { font-size: 13.5px; color: var(--ink-faint); font-weight: 500; }
.plan-alt { font-size: 13px; color: var(--ink-soft); min-height: 20px; margin-bottom: 18px; }
.plan-alt s { color: var(--ink-faint); margin-right: 6px; }
.plan-alt .save { color: var(--brand-deep); font-weight: 600; }
.plan-feats { list-style: none; display: grid; gap: 9px; margin-bottom: 24px; }
.plan-feats li { position: relative; padding-left: 24px; font-size: 14px; color: var(--ink-soft); }
.plan-feats li::before {
  content: ''; position: absolute; left: 0; top: 3px; width: 16px; height: 16px;
  border-radius: 50%; background: linear-gradient(135deg, var(--brand), var(--brand-2));
}
.plan-feats li::after {
  content: ''; position: absolute; left: 4.5px; top: 8px; width: 7px; height: 4px;
  border-left: 2px solid #fff; border-bottom: 2px solid #fff; transform: rotate(-45deg);
}
.plan-card .btn { margin-top: auto; width: 100%; }
.plan-note { margin-top: 26px; font-size: 13px; color: var(--ink-faint); }

/* ---------- Split (network) ---------- */
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.check-list { list-style: none; display: grid; gap: 12px; margin-top: 8px; }
.check-list li { position: relative; padding-left: 30px; font-size: 15px; color: var(--ink-soft); font-weight: 500; }
.check-list li::before {
  content: ''; position: absolute; left: 0; top: 3px; width: 18px; height: 18px;
  border-radius: 50%; background: linear-gradient(135deg, var(--brand), var(--brand-2));
  -webkit-mask: none;
}
.check-list li::after {
  content: ''; position: absolute; left: 5px; top: 8px; width: 8px; height: 4.5px;
  border-left: 2px solid #fff; border-bottom: 2px solid #fff; transform: rotate(-45deg);
}
.region-panel { display: grid; gap: 12px; }
.region {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--bg); border: 1px solid var(--line); border-radius: 12px;
  padding: 18px 22px; font-weight: 600;
}
.region-name { font-size: 15.5px; }
.region-count { font-size: 13px; color: var(--brand-deep); font-weight: 700; }

/* ---------- Company ---------- */
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.value { border-top: 3px solid var(--brand); padding-top: 18px; }
.value:nth-child(2) { border-top-color: var(--brand-2); }
.value:nth-child(3) { border-top-color: #7c9bff; }
.value h4 { font-size: 16.5px; font-weight: 700; margin-bottom: 8px; }
.value p { font-size: 14.5px; color: var(--ink-soft); }

/* ---------- Contact ---------- */
.contact-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact-cards { display: grid; gap: 14px; }
.contact-card {
  display: flex; flex-direction: column; gap: 3px;
  background: var(--bg); border: 1px solid var(--line); border-radius: 12px;
  padding: 18px 22px; transition: border-color .15s ease, transform .15s ease;
}
a.contact-card:hover { border-color: var(--brand); transform: translateY(-2px); }
.contact-label { font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-faint); }
.contact-value { font-size: 15.5px; font-weight: 600; color: var(--ink); }

/* ---------- Footer ---------- */
.site-footer { background: #0d1b2e; color: #b8c6dd; }
.footer-inner {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 32px; padding: 48px 24px 32px; flex-wrap: wrap;
}
.footer-brand .brand-name { color: #fff; font-size: 19px; font-weight: 800; letter-spacing: -.02em; }
.footer-brand p { font-size: 14px; margin-top: 6px; color: #8fa3c2; }
.footer-nav { display: flex; gap: 22px; flex-wrap: wrap; font-size: 14px; font-weight: 500; }
.footer-nav a:hover { color: #fff; }
.footer-legal { padding: 20px 24px 30px; border-top: 1px solid rgba(255,255,255,.08); font-size: 13px; color: #7c90b0; }

/* ---------- Legal pages ---------- */
.legal-body { max-width: 760px; margin: 0 auto; padding: 72px 24px 96px; }
.legal-body h1 { font-size: 34px; font-weight: 800; letter-spacing: -.02em; margin-bottom: 6px; }
.legal-body .updated { font-size: 13.5px; color: var(--ink-faint); margin-bottom: 40px; }
.legal-body h2 { font-size: 20px; font-weight: 700; margin: 34px 0 10px; }
.legal-body p, .legal-body li { font-size: 15px; color: var(--ink-soft); }
.legal-body ul { padding-left: 22px; margin-top: 8px; }
.legal-body a { color: var(--brand-deep); text-decoration: underline; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid, .split, .contact-panel { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  .hero-svg { max-width: 380px; }
  .card-grid, .value-grid { grid-template-columns: 1fr; }
  .plan-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .site-nav { display: none; }
  .section { padding: 60px 0; }
}
@media (max-width: 560px) {
  .plan-grid { grid-template-columns: 1fr; }
}