/* Turing VPN website — dark theme, mobile-first */
:root {
  --bg: #0f1117;
  --bg-card: #1a1d27;
  --bg-card-hover: #232732;
  --bg-input: #0a0c13;
  --text: #eef0f5;
  --text-muted: #8b91a3;
  --accent: #3d7bff;
  --accent-hover: #2861d9;
  --accent-grad: linear-gradient(135deg, #3d7bff 0%, #9d54ff 100%);
  --border: #2a2e3a;
  --success: #1fb464;
  --danger: #ff5b5b;
  --warning: #ffb44b;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* Layout */
.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 16px;
  width: 100%;
}

.container-wide { max-width: 1100px; }

/* Header */
header.top {
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}
header.top .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
header.top .logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  background: var(--accent-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}
header.top nav {
  display: flex;
  gap: 18px;
  align-items: center;
}
/* nav-auth is a <span> populated by JS; make it behave like other nav items */
header.top nav #nav-auth {
  display: inline-flex;
  align-items: center;
}

/* Hero secondary button — proper offset on desktop, full-width on mobile (see media query) */
.hero-btn-secondary {
  margin-left: 14px;
}
header.top nav a {
  color: var(--text-muted);
  font-size: 14px;
}
header.top nav a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero {
  text-align: center;
  padding: 32px 0 48px;
}
.hero h1 {
  font-size: 36px;
  font-weight: 700;
  margin: 0 0 16px;
  line-height: 1.2;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto 24px;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}
.card h2, .card h3 { margin: 0 0 12px; }
.card h2 { font-size: 20px; }
.card h3 { font-size: 16px; color: var(--text-muted); font-weight: 500; }

/* Status badge */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.badge-active { background: rgba(31, 180, 100, 0.15); color: var(--success); }
.badge-expired { background: rgba(255, 91, 91, 0.15); color: var(--danger); }
.badge-trial { background: rgba(255, 180, 75, 0.15); color: var(--warning); }

/* Buttons */
.btn {
  display: inline-block;
  background: var(--accent);
  color: white;
  border: 0;
  border-radius: var(--radius-sm);
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s;
  text-align: center;
}
.btn:hover { background: var(--accent-hover); text-decoration: none; color: white; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary {
  background: var(--accent-grad);
  background-size: 200% 200%;
}
.btn-block { display: block; width: 100%; }
.btn-secondary {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-secondary:hover { background: var(--bg-card-hover); color: var(--text); }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #d63d3d; }

/* Form */
.form-row { margin-bottom: 16px; }
.form-row label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
}
input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 15px;
  color: var(--text);
  font-family: inherit;
}
input:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}

/* Plans grid */
.plans {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 24px 0;
}
.plan {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  position: relative;
  transition: transform 0.15s, border-color 0.15s;
  cursor: pointer;
}
.plan:hover { border-color: var(--accent); transform: translateY(-2px); }
.plan.recommended { border-color: var(--accent); }
.plan.recommended::before {
  content: "Выгоднее";
  position: absolute;
  top: -10px;
  right: 16px;
  background: var(--accent);
  color: white;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 600;
}
.plan-title { font-size: 14px; color: var(--text-muted); margin-bottom: 8px; }
.plan-price { font-size: 28px; font-weight: 700; }
.plan-price span { font-size: 14px; font-weight: 400; color: var(--text-muted); }

/* Code / VLESS block */
.code-block {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  font-family: ui-monospace, "SF Mono", Consolas, monospace;
  font-size: 12px;
  word-break: break-all;
  overflow-wrap: anywhere;
  margin: 8px 0;
  color: var(--text-muted);
}

/* Progress bar */
.progress {
  height: 8px;
  background: var(--bg-input);
  border-radius: 999px;
  overflow: hidden;
  margin: 8px 0;
}
.progress-fill {
  height: 100%;
  background: var(--accent-grad);
  border-radius: 999px;
  transition: width 0.3s;
}

/* Footer */
footer.bottom {
  margin-top: auto;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
  text-align: center;
}
footer.bottom a { color: var(--text-muted); margin: 0 8px; }

/* Helpers */
.muted { color: var(--text-muted); }
.danger { color: var(--danger); }
.center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.flex { display: flex; align-items: center; gap: 12px; }
.flex-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.flex-wrap { flex-wrap: wrap; }
.hidden { display: none !important; }

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  color: var(--text);
  font-size: 14px;
  box-shadow: var(--shadow);
  z-index: 100;
  animation: slideUp 0.2s ease-out;
}
.toast.error { border-color: var(--danger); color: var(--danger); }
.toast.success { border-color: var(--success); color: var(--success); }
@keyframes slideUp {
  from { opacity: 0; transform: translate(-50%, 12px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* ─── Responsive ─────────────────────────────────────────────────────── */

/* Tablet (≤768px) — single-column plans, slightly smaller hero */
@media (max-width: 768px) {
  .hero { padding: 24px 0 32px; }
  .hero h1 { font-size: 32px; }
  .hero p { font-size: 16px; }
  header.top .container { flex-wrap: wrap; gap: 12px; }
  header.top nav { flex-wrap: wrap; gap: 16px; row-gap: 8px; }
  header.top nav a { font-size: 14px; }
  .container { padding: 0 14px; }
  .plans { grid-template-columns: 1fr 1fr; }
}

/* Mobile (≤600px) — single column, touch-friendly buttons & inputs */
@media (max-width: 600px) {
  .hero { padding: 16px 0 24px; }
  .hero h1 { font-size: 26px; line-height: 1.25; }
  .hero p { font-size: 15px; }

  /* Header — logo + nav в столбик если очень узко */
  header.top { padding: 12px 0; margin-bottom: 16px; }
  header.top nav { gap: 12px; }
  header.top nav a { font-size: 13px; }

  /* Two buttons under hero stack vertically.
     !important needed to override inline style="margin-left:8px" attributes in HTML. */
  .hero .btn {
    display: block !important;
    width: 100% !important;
    margin: 0 0 12px 0 !important;
  }
  .hero .btn:last-of-type { margin-bottom: 0 !important; }

  /* One column plans on phones */
  .plans { grid-template-columns: 1fr; gap: 10px; }
  .plan { padding: 16px 18px; }
  .plan-price { font-size: 24px; }

  /* Cards: меньше padding на мобильном */
  .card { padding: 16px; }
  .card h2 { font-size: 18px; }
  .card h3 { font-size: 15px; }

  /* Buttons — стандартный размер для touch (min 44px) */
  .btn { padding: 14px 22px; font-size: 15px; min-height: 44px; }
  .btn-secondary, .btn-danger { min-height: 44px; }

  /* Forms — увеличить input для удобства + 16px чтобы iOS не зумил */
  input[type="text"],
  input[type="email"],
  input[type="password"],
  input[type="tel"],
  input[type="number"],
  textarea, select {
    padding: 14px 14px;
    font-size: 16px;
  }

  /* Code blocks — VLESS-ссылки часто длинные, дать максимум места */
  .code-block { padding: 10px; font-size: 11px; }

  /* Footer — ссылки в столбик */
  footer.bottom { padding: 20px 0; }
  footer.bottom .container { display: flex; flex-direction: column; gap: 6px; }
  footer.bottom a { margin: 0; padding: 4px 0; }

  /* Settings buttons — Выйти / Logout-all в столбик */
  .card .btn + .btn { margin-left: 0 !important; margin-top: 8px; }

  /* Toast: уже на мобильном чтобы не вылезал */
  .toast { left: 16px; right: 16px; transform: none; }
  @keyframes slideUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
  }
}

/* Narrow phones (≤380px — iPhone SE / mini) */
@media (max-width: 380px) {
  .hero h1 { font-size: 23px; }
  .hero p { font-size: 14px; }
  .container { padding: 0 12px; }
  .plan-price { font-size: 22px; }
}

/* Flex utilities — wrap on small screens so content doesn't overflow */
@media (max-width: 600px) {
  .flex-between { flex-wrap: wrap; gap: 8px; }
}