/* ==========================================================================
   ZeroDotCloud — public site stylesheet (landing + store)
   Dark theme, self-contained (no external CSS/JS dependency).
   ========================================================================== */

:root {
  --bg: #0a0a0d;
  --bg-elevated: #131318;
  --bg-card: #16161c;
  --bg-card-hover: #1c1c23;
  --border: #26262e;
  --border-light: #33333d;
  --text: #f5f5f7;
  --text-dim: #a1a1aa;
  --text-faint: #6b6b76;
  --accent: #ffffff;
  --accent-dim: #d4d4d8;
  --success: #34d399;
  --success-bg: rgba(52, 211, 153, 0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --max-width: 1180px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Vazirmatn", "Inter", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}

body { min-width: 0; overflow-x: hidden; }

a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all .15s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #0a0a0d; }
.btn-primary:hover { background: var(--accent-dim); }
.btn-outline { background: transparent; color: var(--text); border-color: var(--border-light); }
.btn-outline:hover { background: var(--bg-card-hover); }
.btn-block { width: 100%; }
.btn-sm { padding: 9px 16px; font-size: 13px; }

/* ---------- Navbar ---------- */
.nav {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(10, 10, 13, 0.9);
  backdrop-filter: blur(10px);
  z-index: 50;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-logo { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 17px; }
.nav-logo .dot { color: var(--success); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { font-size: 14px; color: var(--text-dim); }
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle { display: none; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
}

/* ---------- Hero ---------- */
.hero {
  padding: 88px 0 64px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.hero h1 { font-size: 44px; line-height: 1.15; margin: 0 0 18px; font-weight: 800; letter-spacing: -0.02em; }
.hero p { font-size: 17px; color: var(--text-dim); line-height: 1.6; margin: 0 0 28px; max-width: 480px; }
.hero-actions { display: flex; gap: 12px; }
.hero-art {
  aspect-ratio: 1 / 0.85;
  border-radius: 20px;
  background:
    radial-gradient(circle at 30% 20%, rgba(255,255,255,0.08), transparent 45%),
    linear-gradient(150deg, #17171d 0%, #0d0d11 100%);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.hero-art::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: .35;
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 48px; text-align: center; }
  .hero p { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero h1 { font-size: 32px; }
}

/* ---------- Stats row ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 32px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stat { display: flex; align-items: center; gap: 12px; }
.stat-icon {
  width: 40px; height: 40px; flex: none;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
}
.stat-title { font-size: 14px; font-weight: 600; margin: 0; }
.stat-sub { font-size: 12px; color: var(--text-faint); margin: 2px 0 0; }

@media (max-width: 900px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- Section heading ---------- */
.section { padding: 72px 0; }
.section-head { text-align: center; max-width: 560px; margin: 0 auto 40px; }
.section-head h2 { font-size: 30px; margin: 0 0 10px; font-weight: 800; letter-spacing: -0.01em; }
.section-head p { color: var(--text-dim); font-size: 15px; margin: 0; }

/* ---------- Service / feature cards ---------- */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-4, .grid-3 { grid-template-columns: 1fr; } }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.service-card .icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.service-card h3 { font-size: 16px; margin: 0 0 6px; }
.service-card p { font-size: 13px; color: var(--text-faint); margin: 0 0 14px; }
.service-card .price { font-size: 13px; color: var(--text-dim); }
.service-card .price b { color: var(--text); font-size: 15px; }

/* ---------- Datacenters ---------- */
.dc-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.dc-pill {
  display: flex; align-items: center; gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 18px;
  font-size: 13px;
}
.dc-pill .flag { font-size: 18px; line-height: 1; }
.dc-pill .name { font-weight: 600; }
.dc-pill .ping { color: var(--success); font-size: 12px; }

/* ---------- Logo strip (text-based, no third-party marks) ---------- */
.logo-strip {
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center;
  gap: 40px; opacity: .55;
}
.logo-strip span { font-size: 15px; font-weight: 700; letter-spacing: .02em; color: var(--text-dim); }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); padding: 56px 0 28px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 32px; margin-bottom: 40px; }
.footer h4 { font-size: 13px; margin: 0 0 14px; color: var(--text-dim); font-weight: 600; }
.footer ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.footer ul a { font-size: 13px; color: var(--text-faint); }
.footer ul a:hover { color: var(--text); }
.footer p { font-size: 13px; color: var(--text-faint); line-height: 1.6; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 24px; border-top: 1px solid var(--border);
  font-size: 12px; color: var(--text-faint); flex-wrap: wrap; gap: 12px;
}
.newsletter { display: flex; gap: 8px; margin-top: 12px; }
.newsletter input {
  flex: 1; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 10px 12px; color: var(--text); font-size: 13px;
}
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

/* ==========================================================================
   Store page
   ========================================================================== */

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 32px; overflow-x: auto; }
.tab-btn {
  padding: 12px 18px; font-size: 14px; color: var(--text-faint);
  border-bottom: 2px solid transparent; cursor: pointer; white-space: nowrap; background: none; border-top: none; border-left: none; border-right: none;
  font-family: var(--font);
}
.tab-btn.active { color: var(--text); border-bottom-color: var(--text); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.plans-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 56px; }
@media (max-width: 1100px) { .plans-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .plans-grid { grid-template-columns: 1fr; } }

.plan-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  display: flex; flex-direction: column;
  position: relative;
}
.plan-card.popular { border-color: var(--border-light); box-shadow: 0 0 0 1px var(--border-light); }
.plan-badge {
  position: absolute; top: -11px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #0a0a0d; font-size: 11px; font-weight: 700;
  padding: 4px 12px; border-radius: 999px;
}
.plan-name { font-size: 14px; color: var(--text-dim); margin: 4px 0 10px; }
.plan-price { font-size: 28px; font-weight: 800; margin-bottom: 4px; }
.plan-price span { font-size: 13px; font-weight: 500; color: var(--text-faint); }
.plan-specs { list-style: none; padding: 0; margin: 18px 0 22px; display: flex; flex-direction: column; gap: 9px; }
.plan-specs li { font-size: 13px; color: var(--text-dim); display: flex; gap: 8px; align-items: center; }
.plan-specs li::before { content: "✓"; color: var(--success); font-weight: 700; }

.configure-layout { display: grid; grid-template-columns: 1.6fr 1fr; gap: 24px; align-items: start; }
@media (max-width: 900px) { .configure-layout { grid-template-columns: 1fr; } }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 560px) { .form-grid { grid-template-columns: 1fr; } }

.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: 12px; color: var(--text-faint); }
.field select, .field input[type="text"] {
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 11px 12px; color: var(--text); font-size: 14px;
  font-family: var(--font);
}
.field-static {
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 11px 12px; color: var(--text-dim); font-size: 14px;
}

.billing-options { display: flex; flex-direction: column; gap: 10px; margin-top: 6px; }
.billing-option {
  display: flex; align-items: center; justify-content: space-between;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 12px 14px; cursor: pointer; font-size: 13px;
}
.billing-option input { accent-color: var(--text); }
.billing-option .discount { color: var(--success); font-size: 12px; }

.summary-card { position: sticky; top: 84px; }
.summary-row { display: flex; justify-content: space-between; font-size: 13px; color: var(--text-dim); padding: 9px 0; border-bottom: 1px solid var(--border); }
.summary-row.total { color: var(--text); font-weight: 700; font-size: 16px; border-bottom: none; padding-top: 14px; }

.divider { height: 1px; background: var(--border); margin: 20px 0; }