/* Слоняра VPN — design system, v2.
   Functional minimalism: flat surfaces, crisp hairline borders, a disciplined type/spacing
   scale, restrained accent use, and quiet micro-interactions instead of blur/glow/motion noise.
   3 themes ("1" blue/default, "2" iris/violet, "3" emerald/teal) × 2 brightness (dark/light),
   selected via [data-theme]/[data-brightness] on <html>, set server-side from cookies (see
   base.html) to avoid a flash of the wrong theme on first paint. The admin panel never sets
   these attributes, so it always renders on the bare :root (theme 1 dark) defaults below. */

* {
  -webkit-tap-highlight-color: transparent;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ─── Theme 1 (blue, default) — dark ─── */
:root {
  --bg: #0b0d10;
  --bg-soft: #101317;
  --card: #14171c;
  --card-hover: #191d23;
  --glass: #14171c;
  --field-bg: #0e1013;
  --hover-overlay: rgba(255, 255, 255, 0.04);
  --border: #22262c;
  --text: #f5f6f7;
  --text-soft: #b8bec6;
  --text-dim: #767d87;
  --accent: #4f8ef7;
  --accent-dark: #3568c4;
  --accent-glow: rgba(79, 142, 247, 0.12);
  --warn: #f5a153;
  --danger: #f2555a;
  --success: #2fbf87;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.16);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.22);
  --radius: 14px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ─── Theme 1 — light ─── */
[data-theme="1"][data-brightness="light"] {
  --bg: #fafafb;
  --bg-soft: #ffffff;
  --card: #ffffff;
  --card-hover: #f4f5f7;
  --glass: #ffffff;
  --field-bg: #f2f3f5;
  --hover-overlay: rgba(15, 20, 25, 0.035);
  --border: #e4e6ea;
  --text: #14171c;
  --text-soft: #4a5058;
  --text-dim: #868d96;
  --accent: #3568c4;
  --accent-dark: #274d94;
  --accent-glow: rgba(53, 104, 196, 0.08);
  --shadow-sm: 0 1px 2px rgba(20, 23, 28, 0.05);
  --shadow-md: 0 8px 24px rgba(20, 23, 28, 0.08);
}

/* ─── Theme 2 "Ирис" (violet/indigo) — dark ─── */
[data-theme="2"] {
  --bg: #0c0b12;
  --bg-soft: #121018;
  --card: #17141f;
  --card-hover: #1c1926;
  --glass: #17141f;
  --field-bg: #100e16;
  --hover-overlay: rgba(255, 255, 255, 0.04);
  --border: #262231;
  --text: #f5f4f7;
  --text-soft: #c2bdd0;
  --text-dim: #7d7690;
  --accent: #8b7cf6;
  --accent-dark: #6a5ad1;
  --accent-glow: rgba(139, 124, 246, 0.14);
  --warn: #f5a866;
  --danger: #f2607a;
  --success: #35d29a;
}

/* ─── Theme 2 — light ─── */
[data-theme="2"][data-brightness="light"] {
  --bg: #faf9fc;
  --bg-soft: #ffffff;
  --card: #ffffff;
  --card-hover: #f4f2f9;
  --glass: #ffffff;
  --field-bg: #f1eef8;
  --hover-overlay: rgba(20, 16, 30, 0.035);
  --border: #e6e1f0;
  --text: #17141f;
  --text-soft: #4d465c;
  --text-dim: #857d95;
  --accent: #6a5ad1;
  --accent-dark: #52439f;
  --accent-glow: rgba(106, 90, 209, 0.08);
}

/* ─── Theme 3 "Изумруд" (teal/emerald) — dark ─── */
[data-theme="3"] {
  --bg: #08120f;
  --bg-soft: #0c1815;
  --card: #101f1a;
  --card-hover: #142720;
  --glass: #101f1a;
  --field-bg: #0a1512;
  --hover-overlay: rgba(255, 255, 255, 0.04);
  --border: #1c322a;
  --text: #f2f7f5;
  --text-soft: #b9d4ca;
  --text-dim: #74968a;
  --accent: #22c99a;
  --accent-dark: #199c78;
  --accent-glow: rgba(34, 201, 154, 0.14);
  --warn: #f0ab5f;
  --danger: #f2555a;
  --success: #2fbf87;
}

/* ─── Theme 3 — light ─── */
[data-theme="3"][data-brightness="light"] {
  --bg: #f8fbfa;
  --bg-soft: #ffffff;
  --card: #ffffff;
  --card-hover: #f0f8f5;
  --glass: #ffffff;
  --field-bg: #eef7f3;
  --hover-overlay: rgba(8, 25, 20, 0.035);
  --border: #dcefe7;
  --text: #08201a;
  --text-soft: #3d5c52;
  --text-dim: #7a9a8f;
  --accent: #199c78;
  --accent-dark: #147a5f;
  --accent-glow: rgba(25, 156, 120, 0.08);
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.55;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }

/* Quiet, consistent motion everywhere an element can react to input. */
a, button, input, select, .card, .sub-card, .tariff-card, .bottom-nav-link, .header-link,
.platform-tab, .theme-swatch {
  transition: background-color 150ms var(--ease), border-color 150ms var(--ease),
              color 150ms var(--ease), transform 150ms var(--ease), box-shadow 150ms var(--ease),
              opacity 150ms var(--ease);
}

/* Accessible, visible keyboard focus — same treatment everywhere, accent-colored ring. */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible,
.sub-card:focus-visible, .tariff-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ─── Layout ─── */
.page {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-5) 120px;
}
.page-wide { max-width: 1080px; }

/* ─── Site header — flat, quiet, desktop-appropriate ─── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.nav-logo img { width: 26px; height: 26px; border-radius: 7px; }
.header-actions { display: flex; align-items: center; gap: var(--space-2); }
.header-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--text-soft);
  font-size: 13.5px;
  font-weight: 600;
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.header-link .icon { width: 15px; height: 15px; }
.header-link:hover { background: var(--card-hover); color: var(--text); }
.header-balance {
  background: var(--accent-glow);
  padding: 6px 13px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
}

/* ─── Bottom nav — authenticated only. The one deliberately expressive shape in an otherwise
   flat system: a compact floating dock, solid surface, crisp border, quiet shadow. No blur. ─── */
.bottom-nav {
  position: fixed;
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 6px;
  background: var(--card);
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}
.bottom-nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  color: var(--text-dim);
  font-size: 10.5px;
  font-weight: 600;
  min-width: 58px;
}
.bottom-nav-link .icon { width: 19px; height: 19px; }
.bottom-nav-link:hover { color: var(--text); background: var(--hover-overlay); }
.bottom-nav-link.active { background: var(--accent-glow); color: var(--accent); }

/* ─── Header block (auth screens, empty states) ─── */
.header-center { display: flex; flex-direction: column; align-items: center; text-align: center; margin-bottom: var(--space-6); }
.header-center img { width: 60px; height: 60px; border-radius: 16px; margin-bottom: var(--space-4); }
.header-center h1 {
  font-size: 26px; font-weight: 700; letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 6px;
}
.header-center p { font-size: 14px; color: var(--text-dim); }

/* ─── Cards ─── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-6);
  margin-bottom: var(--space-4);
}
.card-title {
  font-weight: 600; font-size: 15px; color: var(--text);
  margin-bottom: var(--space-4); display: flex; align-items: center; gap: var(--space-2);
}
.card-title .icon { color: var(--accent); }

/* ─── Forms ─── */
.field-label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--text-soft); }
.field-input, .field-select {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--field-bg);
  color: var(--text);
  font-size: 14.5px;
  font-family: var(--font);
  outline: none;
  margin-bottom: var(--space-4);
}
.field-input:focus, .field-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.field-error { color: var(--danger); font-size: 13px; margin: -8px 0 var(--space-3); }
.field-hint { color: var(--text-dim); font-size: 12.5px; margin: -8px 0 var(--space-3); }

.checkbox-row {
  display: flex; align-items: flex-start; gap: var(--space-3);
  margin-bottom: var(--space-5); padding: var(--space-3) var(--space-4);
  background: var(--field-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.checkbox-row input[type="checkbox"] {
  appearance: none; flex: 0 0 19px; width: 19px; height: 19px;
  background: var(--card);
  border: 1.5px solid var(--border);
  border-radius: 6px; cursor: pointer; position: relative; margin-top: 1px;
}
.checkbox-row input[type="checkbox"]:checked {
  background: var(--accent); border-color: var(--accent);
}
.checkbox-row input[type="checkbox"]:checked::after {
  content: ""; position: absolute; left: 6px; top: 2px; width: 5px; height: 9px;
  border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg);
}
.checkbox-row label { font-size: 13px; line-height: 1.5; color: var(--text-soft); }
.checkbox-row a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }

/* ─── Buttons ─── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  width: 100%; padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-weight: 600; font-size: 14.5px;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn:active { transform: scale(0.98); }
.btn-primary {
  background: var(--accent); color: #fff;
}
.btn-primary:hover { background: var(--accent-dark); }
.btn-success { background: var(--success); color: #06231a; }
.btn-success:hover { filter: brightness(0.94); }
.btn-danger { background: transparent; color: var(--danger); border-color: var(--border); }
.btn-danger:hover { background: var(--hover-overlay); border-color: var(--danger); }
.btn-ghost { background: var(--field-bg); color: var(--text-soft); border-color: var(--border); }
.btn-ghost:hover { background: var(--card-hover); color: var(--text); }
.btn:disabled { opacity: 0.45; pointer-events: none; }
.btn-sm { width: auto; padding: 8px 14px; font-size: 13px; }

/* ─── Auth screens ─── */
.auth-wrap { max-width: 400px; margin: 56px auto; }
.auth-switch { text-align: center; margin-top: var(--space-5); font-size: 13.5px; color: var(--text-dim); }
.auth-switch a { color: var(--accent); font-weight: 600; }

/* ─── Tariff cards ─── */
.tariff-grid { display: flex; flex-direction: column; gap: var(--space-3); margin-bottom: var(--space-6); }
.tariff-card {
  background: var(--field-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-4); cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: var(--space-4);
}
.tariff-card:hover { border-color: var(--text-dim); }
.tariff-card.active { background: var(--accent-glow); border-color: var(--accent); }
.tariff-name { font-weight: 600; font-size: 15px; margin-bottom: 2px; }
.tariff-desc { font-size: 12.5px; color: var(--text-dim); }
.tariff-price { font-weight: 700; font-size: 18px; color: var(--accent); white-space: nowrap; }

/* ─── Subscription cards ─── */
.sub-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-5); margin-bottom: var(--space-3); cursor: pointer;
}
.sub-card:hover { border-color: var(--text-dim); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.sub-status { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: var(--radius-pill); }
.sub-status.active { background: rgba(47,191,135,0.12); color: var(--success); }
.sub-status.expired { background: rgba(242,85,90,0.12); color: var(--danger); }

/* ─── Device list (subscription detail) ─── */
.device-list { display: flex; flex-direction: column; gap: var(--space-2); margin: var(--space-2) 0 var(--space-1); }
.device-row {
  display: flex; align-items: center; gap: var(--space-3);
  padding: 9px 12px; background: var(--field-bg); border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: 13px; color: var(--text-soft);
}
.device-row .icon { width: 15px; height: 15px; color: var(--accent); flex-shrink: 0; }

/* ─── Traffic bar (subscription detail) ─── */
.traffic-bar-track { height: 6px; border-radius: var(--radius-pill); background: var(--field-bg); border: 1px solid var(--border); overflow: hidden; margin: var(--space-2) 0 6px; }
.traffic-bar-fill { height: 100%; background: var(--accent); border-radius: var(--radius-pill); }

/* ─── Modal ─── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(4, 6, 8, 0.5);
  z-index: 300; display: flex; align-items: center; justify-content: center; padding: var(--space-5);
}
.modal-box {
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius);
  max-width: 440px; width: 100%; max-height: 88vh; overflow-y: auto; padding: var(--space-6);
  position: relative;
  box-shadow: var(--shadow-md);
}
.modal-close { position: absolute; top: 18px; right: 18px; color: var(--text-dim); cursor: pointer; }
.modal-close:hover { color: var(--text); }

/* ─── Toast ─── */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 12px 20px; font-size: 13.5px; z-index: 400; box-shadow: var(--shadow-md);
}
.toast.success { border-color: var(--success); color: var(--success); }
.toast.error { border-color: var(--danger); color: var(--danger); }

/* ─── Footer ─── */
.site-footer {
  margin-top: var(--space-8); padding-top: var(--space-5); border-top: 1px solid var(--border);
  text-align: center; font-size: 12.5px; color: var(--text-dim);
}
.site-footer .footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-4); margin-bottom: var(--space-3); }
.site-footer a { color: var(--text-dim); }
.site-footer a:hover { color: var(--accent); }

/* ─── Platform tabs (Приложения) ─── */
.platform-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: var(--space-5); }
.platform-tab {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 15px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--field-bg);
  color: var(--text-soft); font-size: 13.5px; font-weight: 600; cursor: pointer;
}
.platform-tab.active { background: var(--accent-glow); border-color: var(--accent); color: var(--accent); }
.platform-tab:hover:not(.active) { border-color: var(--text-dim); }
.setup-steps { list-style: none; counter-reset: step; display: flex; flex-direction: column; gap: var(--space-3); margin: var(--space-4) 0; }
.setup-steps li {
  counter-increment: step;
  display: flex; gap: var(--space-3); align-items: flex-start;
  font-size: 13.5px; color: var(--text-soft); line-height: 1.5;
}
.setup-steps li::before {
  content: counter(step);
  flex: 0 0 22px; height: 22px; border-radius: 50%;
  background: var(--accent-glow); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 11.5px; font-weight: 700;
}
.qr-box { display: flex; justify-content: center; padding: var(--space-5); background: #fff; border: 1px solid var(--border); border-radius: var(--radius); margin: var(--space-4) 0; }
.qr-box img { width: 160px; height: 160px; }

/* ─── Settings ─── */
.settings-row {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-3);
  padding: var(--space-4) 0; border-bottom: 1px solid var(--border);
}
.settings-row:last-child { border-bottom: none; }
.settings-row-label { font-size: 13.5px; font-weight: 600; color: var(--text); }
.settings-row-hint { font-size: 12px; color: var(--text-dim); margin-top: 1px; }
.theme-swatches { display: flex; gap: var(--space-2); }
.theme-swatch {
  width: 30px; height: 30px; border-radius: 50%; cursor: pointer;
  border: 2px solid var(--border); position: relative;
}
.theme-swatch.active { border-color: var(--text); }
.theme-swatch.active::after {
  content: ""; position: absolute; left: 9px; top: 6px; width: 5px; height: 9px;
  border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg);
}
.segmented { display: inline-flex; background: var(--field-bg); border: 1px solid var(--border); border-radius: var(--radius-pill); padding: 3px; }
.segmented button, .segmented label span {
  display: inline-block;
  border: none; background: transparent; padding: 6px 14px; border-radius: var(--radius-pill);
  font-size: 12.5px; font-weight: 600; color: var(--text-dim); cursor: pointer;
}
.segmented button.active, .segmented label span.active { background: var(--accent); color: #fff; }

/* ─── Admin layout (always theme 1 dark — admin never reads the site's theme cookies) ─── */
.admin-shell { display: flex; min-height: 100vh; }
.admin-sidebar {
  width: 232px; flex-shrink: 0; background: var(--bg-soft); border-right: 1px solid var(--border);
  padding: var(--space-6) var(--space-4); position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.admin-nav-link {
  display: block; padding: 10px 14px; border-radius: var(--radius-sm); color: var(--text-soft);
  font-size: 13.5px; font-weight: 600; margin-bottom: 2px;
}
.admin-nav-link:hover { background: var(--hover-overlay); color: var(--text); }
.admin-nav-link.active { background: var(--accent-glow); color: var(--accent); }
.admin-main { flex: 1; padding: var(--space-8); max-width: 1200px; }
.admin-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: var(--space-4); margin-bottom: var(--space-6); }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: var(--space-5); }
.stat-value { font-size: 26px; font-weight: 700; color: var(--text); letter-spacing: -0.01em; }
.stat-label { font-size: 12.5px; color: var(--text-dim); margin-top: 2px; }

.data-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.data-table th { text-align: left; padding: 10px 14px; color: var(--text-dim); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.03em; border-bottom: 1px solid var(--border); }
.data-table td { padding: 10px 14px; border-bottom: 1px solid var(--border); }
.data-table tr:hover td { background: var(--hover-overlay); }

.badge { display: inline-block; padding: 3px 9px; border-radius: var(--radius-pill); font-size: 11.5px; font-weight: 700; }
.badge-green { background: rgba(47,191,135,0.15); color: var(--success); }
.badge-red { background: rgba(242,85,90,0.15); color: var(--danger); }
.badge-blue { background: var(--accent-glow); color: var(--accent); }

/* ─── Mobile: tighter spacing, condensed bottom nav ─── */
@media (max-width: 768px) {
  .page { padding: var(--space-6) var(--space-4) 100px; }
  .card { padding: var(--space-5); }
  .admin-shell { flex-direction: column; }
  .admin-sidebar { width: 100%; height: auto; position: static; display: flex; overflow-x: auto; gap: 4px; }
  .admin-main { padding: var(--space-5) var(--space-4); }
}

@media (max-width: 480px) {
  .bottom-nav-link { padding: 9px 13px; min-width: 42px; }
  .bottom-nav-link .label { display: none; }
  .header-link .label { display: none; }
}
