/* Всем Бензин — iOS-дизайн-система. Ощущение нативного приложения: SF-типографика,
   системные цвета (свет/тёмная), frosted glass, многослойные тени, safe-area, таб-бар. */

:root {
  /* бренд */
  --green: #1eb15a;
  --green-d: #149148;
  --green-deep: #0c7a3c;
  --green-soft: #e7f7ee;
  /* статусы */
  --ok: #1eb15a; --low: #ff9f0a; --queue: #ff6a2c; --coupons: #8b5cf6; --empty: #ff3b30;
  /* iOS системные (свет) */
  --bg: #f2f3f7;
  --bg-elevated: #ffffff;
  --card: #ffffff;
  --ink: #0b0b0f;
  --ink-2: #3c3c43;
  --muted: #8a8a8e;
  --hair: rgba(60, 60, 67, 0.12);
  --hair-strong: rgba(60, 60, 67, 0.22);
  --fill: rgba(118, 118, 128, 0.12);
  --fill-2: rgba(118, 118, 128, 0.08);
  /* геометрия */
  --r-xl: 22px; --r-lg: 18px; --r: 14px; --r-sm: 10px; --r-pill: 999px;
  --shadow-1: 0 1px 2px rgba(11, 11, 15, 0.06), 0 1px 1px rgba(11, 11, 15, 0.04);
  --shadow-2: 0 4px 16px rgba(11, 11, 15, 0.08), 0 1px 4px rgba(11, 11, 15, 0.05);
  --shadow-3: 0 16px 40px rgba(11, 11, 15, 0.16), 0 4px 12px rgba(11, 11, 15, 0.08);
  --shadow-float: 0 8px 28px rgba(11, 11, 15, 0.14);
  --blur: saturate(180%) blur(20px);
  --container: 1180px;
  --tabbar-h: 64px;
  --header-h: 56px;
  --ease-spring: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000; --bg-elevated: #1c1c1e; --card: #1c1c1e;
    --ink: #ffffff; --ink-2: #ebebf0; --muted: #8e8e93;
    --hair: rgba(84, 84, 88, 0.4); --hair-strong: rgba(84, 84, 88, 0.6);
    --fill: rgba(118, 118, 128, 0.24); --fill-2: rgba(118, 118, 128, 0.16);
    --green-soft: rgba(30, 177, 90, 0.16);
    --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-2: 0 4px 16px rgba(0, 0, 0, 0.5);
    --shadow-3: 0 16px 40px rgba(0, 0, 0, 0.6);
    --shadow-float: 0 8px 28px rgba(0, 0, 0, 0.55);
  }
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", system-ui, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.45;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overscroll-behavior-y: none;
}

h1, h2, h3, h4 { margin: 0 0 0.4em; font-weight: 700; letter-spacing: -0.022em; line-height: 1.12; }
h1 { font-size: clamp(1.85rem, 5.5vw, 2.6rem); font-weight: 800; }
h2 { font-size: clamp(1.35rem, 3.6vw, 1.7rem); }
h3 { font-size: 1.08rem; }
p { margin: 0 0 1rem; }
a { color: var(--green-d); text-decoration: none; }
b { font-weight: 650; }

.icon { display: inline-block; vertical-align: middle; flex: none; }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 22px; }
.lead { font-size: 1.1rem; color: var(--ink-2); max-width: 64ch; }
.muted { color: var(--muted); font-size: 0.92rem; }
@media (min-width: 700px) { .container { padding: 0 32px; } }
@media (min-width: 1100px) { .container { padding: 0 40px; } }

/* Кнопки — iOS */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; cursor: pointer;
  font: inherit; font-weight: 600; font-size: 1.02rem; padding: 12px 20px; border-radius: var(--r);
  border: none; background: var(--fill); color: var(--ink); transition: transform 0.15s var(--ease-spring), filter 0.15s, background 0.15s;
}
.btn:active { transform: scale(0.96); }
.btn-primary { background: var(--green); color: #fff; box-shadow: 0 4px 14px rgba(30, 177, 90, 0.32); }
.btn-primary:active { filter: brightness(0.94); }
.btn-tinted { background: var(--green-soft); color: var(--green-d); }
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center; cursor: pointer;
  width: 38px; height: 38px; border-radius: 50%; border: none; background: var(--fill); color: var(--ink); transition: transform 0.15s var(--ease-spring);
}
.icon-btn:active { transform: scale(0.9); }

/* Шапка (десктоп) — frosted */
.site-header {
  position: sticky; top: 0; z-index: 1000; background: color-mix(in srgb, var(--bg-elevated) 72%, transparent);
  backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); border-bottom: 0.5px solid var(--hair);
  padding-top: var(--safe-t);
}
.header-inner { display: flex; align-items: center; gap: 16px; height: var(--header-h); }
.brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 800; font-size: 1.16rem; color: var(--ink); letter-spacing: -0.02em; }
.brand-text b { color: var(--green); font-weight: 800; }
.nav-desktop { display: flex; gap: 2px; margin-left: 6px; }
.nav-link { padding: 8px 13px; border-radius: var(--r-sm); color: var(--ink-2); font-weight: 550; font-size: 0.96rem; transition: background 0.15s; }
.nav-link:hover { background: var(--fill); text-decoration: none; }
.nav-link.is-active { color: var(--green-d); background: var(--green-soft); font-weight: 650; }
.header-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.city-btn {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer; font: inherit; font-weight: 600;
  font-size: 0.95rem; padding: 8px 14px; border-radius: var(--r-pill); border: none; background: var(--fill); color: var(--ink); transition: transform 0.15s var(--ease-spring);
}
.city-btn:active { transform: scale(0.95); }
.menu-btn { display: none; }
.nav-mobile { display: none; }

/* Bottom tab bar (мобайл) */
.tabbar {
  display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 1200;
  padding-bottom: var(--safe-b);
  background: color-mix(in srgb, var(--bg-elevated) 80%, transparent);
  backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
  border-top: 0.5px solid var(--hair);
}
.tabbar-inner { display: flex; height: var(--tabbar-h); }
.tab {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
  color: var(--muted); font-size: 0.66rem; font-weight: 600; background: none; border: none; cursor: pointer; transition: color 0.15s, transform 0.12s var(--ease-spring);
}
.tab .icon { transition: transform 0.18s var(--ease-spring); }
.tab:active .icon { transform: scale(0.82); }
.tab.is-active { color: var(--green); }

/* Подвал */
.site-footer { margin-top: 48px; background: var(--bg-elevated); border-top: 0.5px solid var(--hair); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 26px; padding: 40px 16px 26px; }
.footer-brand p { color: var(--muted); margin-top: 10px; font-size: 0.92rem; max-width: 34ch; }
.footer-col h4 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); margin-bottom: 12px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.footer-col a { color: var(--ink-2); font-size: 0.95rem; }
.footer-bottom { border-top: 0.5px solid var(--hair); }
.footer-bottom-inner { display: flex; justify-content: space-between; gap: 18px; padding: 16px; color: var(--muted); font-size: 0.84rem; flex-wrap: wrap; }
.crumbs { color: var(--muted); font-size: 0.9rem; margin: 16px 0 10px; }
.crumbs a { color: var(--muted); }

@media (max-width: 860px) {
  .nav-desktop, .footer-grid > .footer-col:nth-child(3) { display: none; }
  .menu-btn { display: none; }
  .tabbar { display: block; }
  body.has-tabbar { padding-bottom: calc(var(--tabbar-h) + var(--safe-b)); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .site-footer { margin-bottom: calc(var(--tabbar-h) + var(--safe-b)); }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
}