/* MyClouDrive marketing site — self-contained, no build step */

:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --text: #1a2332;
  --text-muted: #5c6b7f;
  --border: #e2e8f0;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --accent-soft: #eff6ff;
  --hero-from: #0f172a;
  --hero-to: #1e3a5f;
  --success: #059669;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  --font: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --max: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #7c3aed);
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 1.1rem;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-desktop a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
}

.nav-desktop a:hover {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  border: none;
  background: transparent;
  padding: 0.5rem;
  cursor: pointer;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 0.5rem;
  padding-bottom: 1rem;
}

.nav-mobile a {
  padding: 0.5rem 0;
  color: var(--text);
  font-weight: 500;
  text-decoration: none;
}

.nav-mobile.is-open {
  display: flex;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  background: var(--accent-dark);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.45);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.btn-ghost {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Hero */
.hero {
  background: linear-gradient(160deg, var(--hero-from) 0%, var(--hero-to) 55%, #1e40af 100%);
  color: #e2e8f0;
  padding: 4rem 0 5rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 70% 0%, rgba(59, 130, 246, 0.25), transparent);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
  position: relative;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 2.85rem);
  line-height: 1.15;
  margin: 0 0 1rem;
  color: #fff;
  letter-spacing: -0.02em;
}

.hero-lead {
  font-size: 1.2rem;
  color: #cbd5e1;
  margin: 0 0 1.75rem;
  max-width: 36ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.hero-meta {
  font-size: 0.9rem;
  color: #94a3b8;
}

.hero-meta strong {
  color: #e2e8f0;
}

.hero-visual {
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.mock-window {
  border-radius: 8px;
  overflow: hidden;
  background: #0f172a;
  font-size: 0.8rem;
}

.mock-titlebar {
  display: flex;
  gap: 6px;
  padding: 0.6rem 0.75rem;
  background: #1e293b;
}

.mock-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #475569;
}

.mock-dot:nth-child(1) { background: #f87171; }
.mock-dot:nth-child(2) { background: #fbbf24; }
.mock-dot:nth-child(3) { background: #4ade80; }

.mock-body {
  padding: 1rem;
  font-family: var(--mono);
  color: #94a3b8;
  line-height: 1.5;
}

.mock-body .ok { color: #4ade80; }
.mock-body .path { color: #93c5fd; }

/* Sections */
section {
  padding: 4.5rem 0;
}

.section-alt {
  background: var(--surface);
  border-block: 1px solid var(--border);
}

.section-head {
  text-align: center;
  max-width: 42rem;
  margin: 0 auto 2.75rem;
}

.section-head h2 {
  font-size: clamp(1.65rem, 3vw, 2.1rem);
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.section-head p {
  margin: 0;
  color: var(--text-muted);
}

/* Provider grid (Cyberduck-style) */
.provider-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
}

.provider-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.provider-card:hover {
  border-color: #bfdbfe;
  box-shadow: var(--shadow);
}

.provider-card h3 {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
}

.provider-card p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.provider-tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

/* Feature columns (S3 Browser-style lists) */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.feature-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.65rem;
  color: var(--text);
}

.feature-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}

.feature-block h3 {
  margin: 0 0 1rem;
  font-size: 1.25rem;
}

/* Icon feature rows */
.feature-rows {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.feature-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  align-items: start;
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
  font-size: 1.35rem;
}

.feature-row h3 {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
}

.feature-row p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Sync modes */
.sync-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.sync-pill {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
}

/* Download */
.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.download-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
}

.download-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.download-card p {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Compare table */
.compare-wrap {
  overflow-x: auto;
}

table.compare {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

table.compare th,
table.compare td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

table.compare th {
  background: var(--bg);
  font-weight: 600;
}

table.compare tr:last-child td {
  border-bottom: none;
}

table.compare .yes { color: var(--success); font-weight: 600; }
table.compare .muted { color: var(--text-muted); }

/* Footer */
.site-footer {
  background: var(--hero-from);
  color: #94a3b8;
  padding: 3rem 0 2rem;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.site-footer h4 {
  color: #e2e8f0;
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.site-footer ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer li {
  margin-bottom: 0.4rem;
}

.site-footer a {
  color: #cbd5e1;
  text-decoration: none;
}

.site-footer a:hover {
  color: #fff;
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(148, 163, 184, 0.2);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
}

/* Responsive */
@media (max-width: 900px) {
  .hero-grid,
  .two-col,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }

  .nav-desktop {
    display: none;
  }

  .nav-toggle {
    display: block;
  }
}