/* SyncBox marketing site — single shared stylesheet, no dependencies */

:root {
  --navy: #24357f;
  --navy-dark: #1a2760;
  --blue: #2e6da4;
  --blue-light: #5b9bd5;
  --blue-pale: #eaf1f9;
  --ink: #1c2333;
  --ink-soft: #4a5468;
  --line: #dde4ee;
  --bg: #ffffff;
  --bg-alt: #f5f8fc;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(28, 45, 90, 0.08);
  --maxw: 1120px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
}

img { max-width: 100%; display: block; }

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.site-header .container {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--navy);
}
.brand:hover { text-decoration: none; }
.brand img { height: 34px; width: auto; }

.main-nav {
  display: flex;
  gap: 22px;
  margin-left: auto;
}
.main-nav a {
  color: var(--ink-soft);
  font-size: 0.95rem;
  font-weight: 500;
}
.main-nav a:hover { color: var(--navy); text-decoration: none; }

.lang-switch {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 6px;
}
.lang-switch a, .lang-switch span {
  padding: 2px 8px;
  border-radius: 999px;
  color: var(--ink-soft);
}
.lang-switch span.active {
  background: var(--navy);
  color: #fff;
}
.lang-switch a:hover { text-decoration: none; color: var(--navy); }

.btn-login {
  background: var(--navy);
  color: #fff;
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
}
.btn-login:hover { background: var(--blue); color: #fff; text-decoration: none; }

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }

.btn-primary {
  background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 100%);
  color: #fff;
  box-shadow: 0 6px 18px rgba(36, 53, 127, 0.35);
}
.btn-primary:hover { box-shadow: 0 10px 24px rgba(36, 53, 127, 0.45); }

.btn-secondary {
  background: #fff;
  color: var(--navy);
  border: 1.5px solid var(--navy);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.55);
}

/* ---------- Hero ---------- */

.hero {
  background:
    radial-gradient(1000px 500px at 85% -10%, rgba(91, 155, 213, 0.35), transparent 60%),
    radial-gradient(800px 420px at -10% 110%, rgba(46, 109, 164, 0.28), transparent 60%),
    linear-gradient(160deg, var(--navy-dark) 0%, var(--navy) 55%, var(--blue) 100%);
  color: #fff;
  padding: 96px 0 110px;
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2rem, 4.2vw, 3.1rem);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero p.lead {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 32px;
  max-width: 34em;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-art { display: flex; justify-content: center; }
.hero-art img {
  width: min(360px, 80%);
  filter: drop-shadow(0 24px 40px rgba(0, 0, 0, 0.35));
}

/* ---------- Stats strip ---------- */

.stats {
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.stats .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding-top: 28px;
  padding-bottom: 28px;
  text-align: center;
}
.stat b {
  display: block;
  font-size: 1.35rem;
  color: var(--navy);
}
.stat small { color: var(--ink-soft); font-size: 0.88rem; }

/* ---------- Sections ---------- */

section { padding: 84px 0; }
section.alt { background: var(--bg-alt); }

.section-head {
  max-width: 46em;
  margin: 0 auto 52px;
  text-align: center;
}
.section-head .kicker {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 10px;
}
.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--navy-dark);
  margin-bottom: 14px;
}
.section-head p { color: var(--ink-soft); }

/* ---------- Flow (Read - Transform - Write) ---------- */

.flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 12px;
  align-items: stretch;
}

.flow-step {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
}
.flow-step .step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--blue-pale);
  color: var(--navy);
  font-weight: 700;
  margin-bottom: 14px;
}
.flow-step h3 { color: var(--navy-dark); margin-bottom: 8px; font-size: 1.15rem; }
.flow-step p { color: var(--ink-soft); font-size: 0.95rem; }

.flow-arrow {
  align-self: center;
  color: var(--blue-light);
  font-size: 1.6rem;
  font-weight: 700;
  padding: 0 2px;
}

/* ---------- Flow canvas examples ---------- */

.canvas-head {
  margin: 56px 0 4px;
  text-align: center;
  color: var(--navy-dark);
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}

.flow-canvas-figure { margin: 26px 0 0; }

.flow-canvas {
  background:
    radial-gradient(circle, #dce4f0 1px, transparent 1px) 0 0 / 20px 20px,
    #fbfdff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow-x: auto;
  padding: 12px;
}
.flow-canvas.dash {
  background: #f6f9fd;
  padding: 20px;
}
.flow-canvas svg { display: block; min-width: 1000px; width: 100%; height: auto; }
.flow-canvas svg .cat { font-size: 9.5px; font-weight: 700; letter-spacing: 1.2px; }
.flow-canvas svg .title { font-size: 14.5px; font-weight: 600; fill: var(--navy-dark); }
.flow-canvas svg .sub { font-size: 11px; fill: var(--ink-soft); }
.flow-canvas svg .count { font-size: 13px; font-weight: 700; fill: var(--ink); }

.flow-canvas-figure figcaption {
  margin: 14px auto 0;
  max-width: 52em;
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.93rem;
}

/* ---------- Card grids ---------- */

.grid {
  display: grid;
  gap: 22px;
}
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: var(--shadow);
}
.card .icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--blue-pale), #dbe9f7);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.card .icon svg { width: 22px; height: 22px; stroke: var(--navy); }
.card h3 { color: var(--navy-dark); font-size: 1.08rem; margin-bottom: 8px; }
.card p { color: var(--ink-soft); font-size: 0.95rem; }

/* ---------- Use cases ---------- */

.usecase { border-left: 4px solid var(--blue-light); }
.usecase h3 { font-size: 1.05rem; }

/* ---------- Connectors ---------- */

.connector-group { margin-bottom: 26px; }
.connector-group h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--blue);
  margin-bottom: 10px;
}
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.9rem;
  color: var(--ink);
  white-space: nowrap;
}
.chip.generic {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

.connector-note {
  margin-top: 18px;
  color: var(--ink-soft);
  font-size: 0.95rem;
  max-width: 46em;
}

/* ---------- Security ---------- */

.security-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 28px; }
.security-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.security-item .check {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  margin-top: 3px;
}
.security-item h3 { font-size: 1.02rem; color: var(--navy-dark); margin-bottom: 4px; }
.security-item p { color: var(--ink-soft); font-size: 0.93rem; }

/* ---------- About ---------- */

.card p + p { margin-top: 10px; }

.fact-list { list-style: none; }
.fact-list li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 12px;
  color: var(--ink-soft);
  font-size: 0.95rem;
}
.fact-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--blue);
  font-weight: 700;
}
.fact-list strong { color: var(--navy-dark); }

/* ---------- Partners ---------- */

.partner-panel {
  background: linear-gradient(150deg, var(--navy-dark), var(--navy) 60%, var(--blue));
  border-radius: 20px;
  color: #fff;
  padding: 52px 48px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}
.partner-panel h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); margin-bottom: 14px; letter-spacing: -0.015em; }
.partner-panel p { color: rgba(255, 255, 255, 0.85); margin-bottom: 18px; }
.partner-panel ul { list-style: none; }
.partner-panel li {
  padding-left: 28px;
  position: relative;
  margin-bottom: 12px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.97rem;
}
.partner-panel li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--blue-light);
  font-weight: 700;
}

/* ---------- CTA / contact ---------- */

.cta { text-align: center; }
.cta .btn { margin-top: 8px; }
.cta .contact-line { margin-top: 22px; color: var(--ink-soft); font-size: 0.95rem; }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 30px 0;
  font-size: 0.88rem;
  color: var(--ink-soft);
}
.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  align-items: center;
  justify-content: space-between;
}
.site-footer nav { display: flex; gap: 12px 18px; flex-wrap: wrap; }
.site-footer a { color: var(--ink-soft); }
.site-footer a:hover { color: var(--navy); }

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero-actions { justify-content: center; }
  .hero-art { order: -1; }
  .hero-art img { width: min(220px, 60%); }
  .grid.cols-3 { grid-template-columns: 1fr 1fr; }
  .flow { grid-template-columns: 1fr; }
  .flow-arrow { transform: rotate(90deg); justify-self: center; }
  .security-list { grid-template-columns: 1fr; }
  .partner-panel { grid-template-columns: 1fr; padding: 40px 30px; }
  .stats .container { grid-template-columns: 1fr 1fr; }
  .main-nav { display: none; }
  .lang-switch { margin-left: auto; }
  .site-header .container { gap: 12px; }
}

@media (max-width: 560px) {
  .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; }
  section { padding: 60px 0; }
  .hero { padding: 64px 0 72px; }
}

@media (max-width: 480px) {
  .brand { font-size: 0; gap: 0; }
  .btn-login { padding: 8px 14px; font-size: 0.85rem; }
}