/* ============================================================
   Selfcloud — one-page site (spektr-inspired light theme)
   ============================================================ */

:root {
  --bg: #f0eeea;
  --surface: #ffffff;
  --ink: #16171c;
  --ink-soft: #55575f;
  --line: rgba(22, 23, 28, 0.1);
  --accent: #2f6bff;
  --radius: 28px;
  --radius-sm: 18px;
  --nav-h: 72px;
  --font: "Figtree", system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16.5px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: min(1140px, 100% - 44px);
  margin-inline: auto;
}

h1, h2, h3 { line-height: 1.08; letter-spacing: -0.025em; font-weight: 700; }

h1 { font-size: clamp(2.9rem, 7vw, 5.2rem); }
h2 { font-size: clamp(2rem, 4.4vw, 3.2rem); }
h3 { font-size: 1.3rem; letter-spacing: -0.01em; }

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

/* ============ Nav ============ */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}

.logo { display: flex; align-items: center; }
.logo img { height: 30px; width: auto; display: block; }
.footer .logo img { height: 26px; }

.nav-links {
  display: flex;
  gap: 28px;
  margin-left: auto;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-soft);
}
.nav-links a { transition: color 0.2s; white-space: nowrap; }
.nav-links a:hover { color: var(--ink); }

.lang-switch {
  display: flex;
  border: 1.5px solid var(--line);
  border-radius: 999px;
  padding: 3px;
  font-size: 0.8rem;
  font-weight: 700;
}
.lang-switch a {
  padding: 5px 12px;
  border-radius: 999px;
  color: var(--ink-soft);
  transition: color 0.2s;
}
.lang-switch a:hover { color: var(--ink); }
.lang-switch a.active { background: var(--ink); color: #fff; }

/* ============ Buttons ============ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  padding: 15px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  transition: transform 0.2s, background 0.2s, border-color 0.2s;
}
.btn-sm { padding: 11px 22px; font-size: 0.92rem; }

.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { transform: translateY(-2px); background: #000; }

.btn-outline { border: 1.5px solid var(--line); background: transparent; }
.btn-outline:hover { transform: translateY(-2px); border-color: var(--ink); }

.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { transform: translateY(-2px); }

/* ============ Hero ============ */

.hero {
  padding: calc(var(--nav-h) + 108px) 0 96px;
  text-align: center;
}

.hero-inner { max-width: 860px; margin-inline: auto; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  border: 1.5px solid var(--line);
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 500;
  margin-bottom: 34px;
  transition: border-color 0.2s;
}
.badge:hover { border-color: var(--ink); }
.badge-arrow { transition: transform 0.2s; }
.badge:hover .badge-arrow { transform: translateX(3px); }

.lead {
  margin: 26px auto 0;
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: var(--ink-soft);
  max-width: 560px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 38px;
}

.trust-strip {
  margin-top: 84px;
}
.trust-strip p {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 18px;
}
.trust-strip ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px 38px;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: rgba(22, 23, 28, 0.55);
}

/* ============ Sections ============ */

.section { padding: 64px 0; }

.section-title {
  max-width: 640px;
  margin-bottom: 44px;
}

/* ============ Cards / bento ============ */

.bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 34px 32px;
  transition: transform 0.25s;
}
.card:hover { transform: translateY(-4px); }
.card > p { color: var(--ink-soft); font-size: 1rem; margin-top: 10px; }

.bento .card { grid-column: span 2; }
.bento .card-feature { grid-column: span 3; }

.card-feature {
  min-height: 340px;
  display: flex;
  align-items: flex-end;
  padding: 40px 38px;
}
.card-feature-body { max-width: 460px; }
.card-feature h3 { font-size: 1.7rem; }
.card-feature p { color: var(--ink-soft); margin: 12px 0 20px; }

.card-grad-blue {
  background:
    radial-gradient(120% 120% at 85% 0%, rgba(47, 107, 255, 0.18), transparent 60%),
    radial-gradient(120% 120% at 0% 100%, rgba(110, 231, 249, 0.25), transparent 55%),
    var(--surface);
}
.card-grad-pink {
  background:
    radial-gradient(120% 120% at 85% 0%, rgba(244, 114, 182, 0.16), transparent 60%),
    radial-gradient(120% 120% at 0% 100%, rgba(196, 181, 253, 0.24), transparent 55%),
    var(--surface);
}

.card-tag {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1.5px solid var(--line);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 18px;
}

.text-link {
  font-weight: 600;
  display: inline-flex;
  gap: 8px;
  align-items: center;
}
.text-link span { transition: transform 0.2s; }
.text-link:hover span { transform: translateX(3px); }

/* ============ Why ============ */

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.card-plain .num {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 14px;
}
.card-plain h3 { font-size: 1.15rem; }
.card-plain p { font-size: 0.95rem; }

/* ============ CTA panel ============ */

.cta-panel {
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius);
  text-align: center;
  padding: clamp(64px, 9vw, 110px) 32px;
}
.cta-panel h2 { font-size: clamp(2.4rem, 5.5vw, 4rem); }
.cta-panel p {
  color: rgba(255, 255, 255, 0.65);
  max-width: 460px;
  margin: 18px auto 34px;
}

/* ============ Footer ============ */

.footer { padding: 44px 0 52px; }
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--line);
  padding-top: 34px;
}
.footer p { color: var(--ink-soft); font-size: 0.9rem; }
.footer-legal { margin-top: 14px; }
.footer-legal p { font-size: 0.8rem; color: rgba(22, 23, 28, 0.45); }

/* ============ Reveal animation ============ */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ============ Responsive ============ */

@media (max-width: 960px) {
  .bento .card, .bento .card-feature { grid-column: span 3; }
  .why-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-inner { gap: 14px; }
  .lang-switch { margin-left: auto; }
}

@media (max-width: 680px) {

  .bento { grid-template-columns: 1fr; }
  .bento .card, .bento .card-feature { grid-column: span 1; }
  .card-feature { min-height: 0; }
  .why-grid { grid-template-columns: 1fr; }
  .section { padding: 48px 0; }
  .hero { padding: calc(var(--nav-h) + 72px) 0 72px; }
  .trust-strip { margin-top: 64px; }
}