/* ============================================
   ScamGuard site — стили
   Минималистичный микс серьёзного и современного.
============================================ */

:root {
  --primary-1: #3B5BFA;
  --primary-2: #7C3AED;
  --primary-grad: linear-gradient(135deg, var(--primary-1), var(--primary-2));
  --ink: #0F1117;
  --muted: #6B7280;
  --bg: #FFFFFF;
  --bg-soft: #F7F8FC;
  --border: #E5E7EB;
  --success: #10B981;
  --success-soft: #D1FAE5;
  --danger: #DC2626;
  --danger-soft: #FEE2E2;
  --warning: #F59E0B;
  --warning-soft: #FEF3C7;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
  --radius: 14px;
  --radius-lg: 20px;
  --container: 1100px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

/* ============ Header ============ */
header.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}
header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  font-size: 1.05rem;
  flex-shrink: 0;
}
.brand img { width: 32px; height: 32px; }

/* Navigation */
.nav-links {
  display: flex;
  gap: 4px;
  align-items: center;
  flex: 1;
  justify-content: center;
}
.nav-links a {
  padding: 8px 14px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.15s;
}
.nav-links a:hover {
  color: var(--ink);
  background: var(--bg-soft);
}

/* Language dropdown */
.lang-dropdown {
  position: relative;
  flex-shrink: 0;
}
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  font-family: inherit;
}
.lang-toggle:hover { background: var(--border); }
.lang-toggle .arrow {
  font-size: 0.7rem;
  transition: transform 0.2s;
  color: var(--muted);
}
.lang-dropdown.open .lang-toggle .arrow { transform: rotate(180deg); }
.lang-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 160px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  padding: 6px;
  display: none;
  z-index: 200;
}
.lang-dropdown.open .lang-menu { display: block; }
.lang-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 500;
  font-size: 0.95rem;
}
.lang-menu a:hover { background: var(--bg-soft); }
.lang-menu a.active {
  background: var(--bg-soft);
  color: var(--primary-1);
  font-weight: 700;
}
.lang-menu .flag {
  font-size: 1.2rem;
  line-height: 1;
}

/* Hamburger for mobile */
.hamburger {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  flex-direction: column;
  gap: 4px;
  align-items: center;
  justify-content: center;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}
.hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Mobile menu */
@media (max-width: 820px) {
  .hamburger { display: flex; }
  .nav-links {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 12px;
    gap: 4px;
    display: none;
    box-shadow: var(--shadow-md);
  }
  .nav-links.open { display: flex; }
  .nav-links a {
    padding: 12px 16px;
    font-size: 1rem;
    width: 100%;
    text-align: left;
  }
}

/* ============ Hero ============ */
.hero {
  padding: 80px 0 60px;
  text-align: center;
  background: radial-gradient(ellipse at top, rgba(124, 58, 237, 0.08), transparent 50%);
}
.hero-icon {
  width: 96px;
  height: 96px;
  margin: 0 auto 24px;
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  background: var(--primary-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero .subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto 32px;
}
.cta-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 12px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.15s ease;
  font-size: 1rem;
  border: none;
  cursor: pointer;
}
.btn-primary {
  background: var(--primary-grad);
  color: white;
  box-shadow: var(--shadow-md);
}
.btn-primary:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-1px);
}
.btn-secondary {
  background: var(--bg-soft);
  color: var(--ink);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--border); }

.badge-row {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--bg-soft);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 500;
}

/* ============ Sections ============ */
section {
  padding: 72px 0;
}
section.alt { background: var(--bg-soft); }

h2.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.section-subtitle {
  text-align: center;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 48px;
  font-size: 1.05rem;
}

/* ============ How it works ============ */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.step {
  text-align: center;
  padding: 24px;
}
.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-grad);
  color: white;
  font-weight: 800;
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.step h3 { font-size: 1.15rem; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 0.95rem; }

/* ============ Features grid ============ */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.feature {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.2s ease;
}
.feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.feature-icon {
  font-size: 2rem;
  margin-bottom: 14px;
  display: inline-block;
}
.feature h3 { font-size: 1.1rem; margin-bottom: 8px; }
.feature p { color: var(--muted); font-size: 0.95rem; line-height: 1.55; }

/* ============ Privacy block ============ */
.privacy-block {
  background: linear-gradient(135deg, #0F1117 0%, #1E1B4B 100%);
  color: white;
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  margin: 24px 0;
}
.privacy-block h2 {
  color: white;
  text-align: center;
  margin-bottom: 16px;
}
.privacy-block .section-subtitle {
  color: rgba(255,255,255,0.7);
  margin-bottom: 40px;
}
.privacy-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
}
.privacy-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.privacy-icon {
  width: 44px;
  height: 44px;
  background: rgba(124, 58, 237, 0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 6px;
}
.privacy-item h3 { font-size: 1.05rem; color: white; }
.privacy-item p { color: rgba(255,255,255,0.6); font-size: 0.95rem; }

/* ============ Screenshots ============ */
.screenshots {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  align-items: start;
}
.screen-card {
  text-align: center;
}
.screen-card img {
  max-width: 100%;
  width: 280px;
  border-radius: 28px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}
.screen-card h3 { margin-top: 20px; font-size: 1.1rem; }
.screen-card p { color: var(--muted); font-size: 0.95rem; }

/* ============ FAQ ============ */
.faq {
  max-width: 720px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}
.faq-item summary {
  font-weight: 600;
  cursor: pointer;
  font-size: 1.05rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-right: 8px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.6rem;
  font-weight: 300;
  color: var(--muted);
  transition: transform 0.2s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.7;
}

/* ============ Footer ============ */
footer {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.footer-col h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
  letter-spacing: 0.05em;
}
.footer-col a {
  display: block;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 4px 0;
}
.footer-col a:hover { color: var(--primary-1); }
.footer-col p { color: var(--muted); font-size: 0.95rem; }
.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  section { padding: 56px 0; }
  .hero { padding: 56px 0 40px; }
  .privacy-block { padding: 40px 24px; }
}

/* ============ Document pages (privacy / eula) ============ */
.doc-page {
  max-width: 760px;
  margin: 40px auto;
  padding: 0 24px;
}
.doc-page h1 {
  font-size: 2rem;
  margin-bottom: 8px;
}
.doc-page .doc-meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.doc-page h2 {
  font-size: 1.4rem;
  margin-top: 36px;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}
.doc-page h3 {
  font-size: 1.1rem;
  margin-top: 24px;
  margin-bottom: 10px;
}
.doc-page p { margin-bottom: 14px; }
.doc-page ul {
  margin: 12px 0 18px 24px;
}
.doc-page li {
  margin-bottom: 6px;
}
.doc-page strong { color: var(--ink); }
.doc-page a {
  color: var(--primary-1);
}