/* ==========================================================================
   Хобот VPN — Официальный лендинг (style.css)
   Mobile-First • Высокая производительность • Идеальный Core Web Vitals
   ========================================================================== */

:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-hover: rgba(31, 41, 55, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(34, 197, 94, 0.4);
  
  --brand-green: #22c55e;
  --brand-green-hover: #16a34a;
  --brand-green-glow: rgba(34, 197, 94, 0.25);
  --brand-sky: #38bdf8;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-sub: #64748b;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px var(--brand-green-glow);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
  scroll-behavior: smooth;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background: radial-gradient(circle at 50% 0%, rgba(34, 197, 94, 0.08) 0%, transparent 60%),
              radial-gradient(circle at 100% 100%, rgba(56, 189, 248, 0.05) 0%, transparent 50%),
              var(--bg-primary);
}

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

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

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 14px 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 38px;
  height: 38px;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(34, 197, 94, 0.4));
}

.brand-name {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
}

.brand-badge {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  background: rgba(34, 197, 94, 0.15);
  color: var(--brand-green);
  padding: 2px 7px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.nav {
  display: none;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 28px;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
}

.nav-link:hover {
  color: #fff;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--brand-green), #15803d);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  box-shadow: 0 4px 15px rgba(34, 197, 94, 0.3);
}

.header-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(34, 197, 94, 0.45);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  padding: 60px 0 50px;
  text-align: center;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.25);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--brand-green);
  margin-bottom: 24px;
}

.hero-badge-dot {
  width: 7px;
  height: 7px;
  background-color: var(--brand-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--brand-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.hero-title {
  font-size: 2.1rem;
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.03em;
  margin-bottom: 18px;
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
  color: #fff;
}

.hero-title .highlight {
  background: linear-gradient(135deg, #4ade80, #22c55e, #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 32px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  justify-content: center;
  align-items: center;
  margin-bottom: 40px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: 320px;
  padding: 15px 28px;
  background: linear-gradient(135deg, var(--brand-green), #15803d);
  color: #ffffff;
  font-size: 1rem;
  font-weight: 800;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 25px -5px rgba(34, 197, 94, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -5px rgba(34, 197, 94, 0.6);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  max-width: 320px;
  padding: 14px 28px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  max-width: 780px;
  margin: 0 auto;
}

.stat-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}

.stat-value {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--brand-green);
  margin-bottom: 2px;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Section Common
   ========================================================================== */
.section {
  padding: 60px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--brand-green);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.section-title {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  color: #fff;
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ==========================================================================
   Features Grid
   ========================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 26px;
  transition: var(--transition);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(34, 197, 94, 0.12);
  color: var(--brand-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 18px;
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.feature-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   Servers Table / Grid
   ========================================================================== */
.servers-table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.server-row {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1fr;
  align-items: center;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border-color);
  gap: 12px;
  transition: var(--transition);
}

.server-row:last-child {
  border-bottom: none;
}

.server-row:hover {
  background: rgba(255, 255, 255, 0.02);
}

.server-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.server-flag {
  font-size: 1.6rem;
}

.server-country {
  font-weight: 700;
  color: #fff;
  font-size: 0.95rem;
}

.server-city {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.server-protocols {
  font-size: 0.78rem;
  color: var(--brand-sky);
  font-weight: 600;
  background: rgba(56, 189, 248, 0.08);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  display: inline-block;
  border: 1px solid rgba(56, 189, 248, 0.2);
  text-align: center;
}

.server-status {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--brand-green);
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--brand-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--brand-green);
}

/* ==========================================================================
   Pricing Section
   ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.pricing-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 26px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.pricing-card.popular {
  border-color: rgba(34, 197, 94, 0.5);
  background: linear-gradient(180deg, rgba(34, 197, 94, 0.08), rgba(17, 24, 39, 0.9));
  box-shadow: 0 10px 30px -10px rgba(34, 197, 94, 0.25);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background: linear-gradient(135deg, var(--brand-green), #15803d);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.35);
}

.pricing-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.pricing-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 20px;
}

.price-amount {
  font-size: 2.2rem;
  font-weight: 900;
  color: #fff;
}

.price-period {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.pricing-features {
  list-style: none;
  margin-bottom: 24px;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.pricing-features li svg {
  width: 16px;
  height: 16px;
  color: var(--brand-green);
  flex-shrink: 0;
}

.pricing-card .btn-primary {
  max-width: 100%;
}

/* ==========================================================================
   FAQ Accordion
   ========================================================================== */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active {
  border-color: rgba(34, 197, 94, 0.35);
  background: var(--bg-card-hover);
}

.faq-question {
  width: 100%;
  padding: 18px 22px;
  text-align: left;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  gap: 14px;
}

.faq-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-green);
  font-weight: bold;
  font-size: 1.2rem;
  transition: transform 0.25s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.65;
  padding: 0 22px;
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 0 22px 20px;
}

/* ==========================================================================
   Legal Document Pages (privacy.html, terms.html)
   ========================================================================== */
.legal-page {
  padding: 50px 0 80px;
}

.legal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 35px 25px;
  box-shadow: var(--shadow-card);
}

.legal-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 24px;
  margin-bottom: 30px;
}

.legal-title {
  font-size: 1.9rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: #fff;
}

.legal-date {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.legal-content h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin: 28px 0 12px;
}

.legal-content p, .legal-content ul {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  line-height: 1.7;
}

.legal-content ul {
  padding-left: 24px;
}

.legal-content li {
  margin-bottom: 8px;
}

.legal-back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--brand-green);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.legal-back-link:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  background: rgba(11, 15, 25, 0.95);
  padding: 40px 0 25px;
  font-size: 0.85rem;
  color: var(--text-sub);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 25px;
  align-items: center;
  text-align: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  list-style: none;
}

.footer-links a {
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--brand-green);
}

.footer-copy {
  color: var(--text-sub);
}

/* ==========================================================================
   Responsive Media Queries (Desktop & Tablet)
   ========================================================================== */
@media (min-width: 640px) {
  .hero-title {
    font-size: 2.8rem;
  }
  
  .hero-actions {
    flex-direction: row;
    gap: 16px;
  }
  
  .hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .legal-card {
    padding: 50px 45px;
  }
}

@media (min-width: 1024px) {
  .nav {
    display: block;
  }
  
  .hero {
    padding: 90px 0 70px;
  }
  
  .hero-title {
    font-size: 3.4rem;
  }
  
  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .pricing-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}