/* ═══════════════════════════════════════════════════════
   Улей VPN — Design System
   ═══════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ─── Tokens ──────────────────────────────────────────── */
:root {
  --bg-primary: #0a0a1a;
  --bg-secondary: #12122a;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.08);
  --bg-glass: rgba(255, 255, 255, 0.06);

  --accent: #f5a623;
  --accent-light: #ffc857;
  --accent-dark: #c88400;
  --accent-glow: rgba(245, 166, 35, 0.3);

  --success: #34d399;
  --error: #f87171;
  --warning: #fbbf24;

  --text-primary: #ffffff;
  --text-secondary: #a0a0b8;
  --text-muted: #6b6b80;

  --border: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(245, 166, 35, 0.3);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px var(--accent-glow);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--accent-light);
}

ul, ol { list-style: none; }
img { max-width: 100%; display: block; }

/* ─── Honeycomb Background ────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(245, 166, 35, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(245, 166, 35, 0.02) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(18, 18, 42, 0.8) 0%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}

/* ─── Layout ──────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.section {
  padding: 80px 0;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--text-primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ─── Navbar ──────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 26, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.navbar-logo img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.navbar-logo span {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.navbar-nav a {
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.navbar-nav a:hover {
  color: var(--text-primary);
  background: var(--bg-card);
}

.navbar-nav a.active {
  color: var(--accent);
}

/* Mobile menu */
.navbar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
}

@media (max-width: 768px) {
  .navbar-toggle { display: block; }
  .navbar-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 10, 26, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--border);
  }
  .navbar-nav.open { display: flex; }
  .navbar-nav a { padding: 12px 16px; width: 100%; }
}

/* ─── Buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #000;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px var(--accent-glow), var(--shadow-md);
  color: #000;
}

.btn-secondary {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn-outline:hover {
  background: rgba(245, 166, 35, 0.1);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-full {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ─── Cards ───────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(10px);
  transition: all var(--transition);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.card-highlight {
  border-color: var(--accent);
  background: rgba(245, 166, 35, 0.05);
  position: relative;
}

.card-highlight::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(135deg, var(--accent), transparent, var(--accent));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.card-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #000;
  font-weight: 700;
  font-size: 0.75rem;
  padding: 4px 16px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ─── Forms ───────────────────────────────────────────── */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.form-input {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-error {
  color: var(--error);
  font-size: 0.85rem;
  margin-top: 6px;
}

.form-hint {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 6px;
}

/* ─── Hero ────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  position: relative;
}

.hero-content {
  max-width: 700px;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-glass);
  border: 1px solid var(--border-accent);
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 32px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #fff 30%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-glow {
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  filter: blur(80px);
  pointer-events: none;
  animation: pulse-glow 4s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.3; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.5; transform: translate(-50%, -50%) scale(1.1); }
}

/* ─── Features ────────────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-card {
  text-align: center;
  padding: 40px 24px;
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
  display: inline-block;
}

.feature-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ─── Plans Grid ──────────────────────────────────────── */
.plans-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  align-items: start;
}

.plan-card {
  padding: 40px 32px;
  text-align: center;
}

.plan-name {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.plan-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.plan-price {
  font-size: 3rem;
  font-weight: 900;
  margin-bottom: 4px;
  background: linear-gradient(135deg, var(--text-primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.plan-price-suffix {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 32px;
}

.plan-features {
  text-align: left;
  margin-bottom: 32px;
}

.plan-features li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.plan-features li:last-child {
  border-bottom: none;
}

.plan-features li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* Duration selector */
.duration-selector {
  display: flex;
  gap: 6px;
  margin-bottom: 24px;
  flex-wrap: wrap;
  justify-content: center;
}

.duration-btn {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.duration-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

.duration-btn.active {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
  font-weight: 700;
}

/* ─── Auth Forms ──────────────────────────────────────── */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
}

.auth-card {
  width: 100%;
  max-width: 440px;
  padding: 40px;
}

.auth-title {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 8px;
  text-align: center;
}

.auth-subtitle {
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 32px;
}

.auth-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 32px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 4px;
}

.auth-tab {
  flex: 1;
  padding: 10px;
  text-align: center;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  border: none;
  background: none;
  font-family: inherit;
}

.auth-tab.active {
  background: var(--accent);
  color: #000;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 24px 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.auth-footer {
  text-align: center;
  margin-top: 24px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Code input */
.code-inputs {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 24px;
}

.code-input {
  width: 48px;
  height: 56px;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  outline: none;
  transition: all var(--transition-fast);
}

.code-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ─── Dashboard ───────────────────────────────────────── */
.dashboard-container {
  padding: 100px 24px 80px;
}

.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 16px;
}

.dashboard-welcome {
  font-size: 1.75rem;
  font-weight: 800;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.dashboard-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.dashboard-card-title span {
  font-size: 1.3rem;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

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

.stat-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.stat-value {
  font-weight: 600;
  font-size: 0.95rem;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
}

.status-active {
  background: rgba(52, 211, 153, 0.15);
  color: var(--success);
}

.status-inactive {
  background: rgba(248, 113, 113, 0.15);
  color: var(--error);
}

.config-url {
  background: var(--bg-secondary);
  padding: 14px;
  border-radius: var(--radius-sm);
  font-family: monospace;
  font-size: 0.8rem;
  color: var(--accent);
  word-break: break-all;
  margin: 12px 0;
  border: 1px solid var(--border);
}

/* ─── Footer ──────────────────────────────────────────── */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  position: relative;
  z-index: 1;
}

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

/* ─── Alerts / Toasts ─────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 16px 24px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 9999;
  animation: slide-in 0.3s ease;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
}

.toast-success {
  background: rgba(52, 211, 153, 0.15);
  border: 1px solid rgba(52, 211, 153, 0.3);
  color: var(--success);
}

.toast-error {
  background: rgba(248, 113, 113, 0.15);
  border: 1px solid rgba(248, 113, 113, 0.3);
  color: var(--error);
}

@keyframes slide-in {
  from { transform: translateX(100px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ─── Loading Spinner ─────────────────────────────────── */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top: 2px solid currentColor;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ─── Utilities ───────────────────────────────────────── */
.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.hidden { display: none !important; }

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .section-title { font-size: 2rem; }
  .hero { padding: 100px 16px 60px; }
  .hero-title { font-size: 2.2rem; }
  .plans-grid { grid-template-columns: 1fr; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .card { padding: 24px; }
  .auth-card { padding: 24px; }
}