/*
 * Obsidian VPN Mini-App.
 * Themed off Telegram WebApp.themeParams (set as CSS vars by app.js).
 */

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body {
  margin: 0; padding: 0;
  background: var(--tg-bg, #0e0e10);
  color: var(--tg-text, #e8e8ea);
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter",
        system-ui, sans-serif;
  letter-spacing: -0.005em;
  min-height: 100vh;
  padding-bottom: env(safe-area-inset-bottom, 0);
}
body {
  --bg:        var(--tg-bg, #0e0e10);
  --bg-2:      var(--tg-secondary-bg, #16161a);
  --card:      var(--tg-secondary-bg, #15151a);
  --card-2:    #1d1d23;
  --border:    rgba(255, 255, 255, 0.07);
  --border-2:  rgba(255, 255, 255, 0.14);
  --text:      var(--tg-text, #e8e8ea);
  --text-2:    var(--tg-hint, #b9b9c1);
  --muted:     var(--tg-hint, #888);
  --accent:    var(--tg-button, #818cf8);
  --accent-text: var(--tg-button-text, #ffffff);
  --ok:        #34d399;
  --warn:      #fbbf24;
  --err:       #f87171;
  --star:      #fcd34d;
}

a { color: var(--accent); text-decoration: none; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12.5px; }
.small { font-size: 12.5px; color: var(--text-2); }
.muted { color: var(--muted); }
.star { color: var(--star); }
.ok   { color: var(--ok);   }
.warn { color: var(--warn); }
.err  { color: var(--err);  }

/* topbar */
header.topbar {
  position: sticky; top: 0; z-index: 10;
  padding: 12px 16px 8px;
  background: linear-gradient(to bottom,
              var(--bg) 70%, transparent 100%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 17px; }
.brand .logo { color: var(--accent); }
.tabs { display: flex; gap: 6px; margin-top: 12px; padding: 4px; background: var(--bg-2); border-radius: 12px; }
.tab {
  flex: 1; padding: 8px 12px; border: 0; border-radius: 9px;
  background: transparent; color: var(--text-2);
  font: inherit; font-weight: 500; font-size: 13px; cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.tab.active { background: var(--bg); color: var(--text); box-shadow: 0 1px 2px rgba(0,0,0,0.2); }

/* main + screens */
main { padding: 12px 16px 32px; }
.screen { display: flex; flex-direction: column; gap: 12px; }

.card {
  background: var(--card);
  border-radius: 14px;
  padding: 14px 16px;
  border: 1px solid var(--border);
}
.card-title {
  font-weight: 600; margin-bottom: 4px;
  font-size: 14px; letter-spacing: -0.01em;
}

/* home */
.hero .hello { font-size: 22px; font-weight: 700; letter-spacing: -0.02em; }
.hero .status-line { color: var(--text-2); margin-top: 6px; font-size: 14px; }

.progress { margin-top: 12px; }
.progress-bar {
  height: 6px; background: var(--bg-2); border-radius: 999px; overflow: hidden;
}
.progress-fill {
  height: 100%; background: var(--accent);
  border-radius: 999px; transition: width 0.4s ease;
}
.progress-label { margin-top: 6px; }

.cta { display: flex; flex-direction: column; gap: 8px; }
.cta-title { font-weight: 600; font-size: 15px; }

.actions { display: flex; gap: 8px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 16px;
  border: 0; border-radius: 12px;
  font: inherit; font-size: 14px; font-weight: 600;
  cursor: pointer; transition: opacity 0.15s, transform 0.05s;
  text-decoration: none;
  flex: 1; min-width: 140px;
}
.btn:active { transform: scale(0.98); }
.btn.primary { background: var(--accent); color: var(--accent-text); }
.btn.ghost   { background: var(--bg-2);  color: var(--text); }
.btn[disabled] { opacity: 0.4; pointer-events: none; }

/* steps */
.steps { padding-left: 22px; margin: 8px 0 0; line-height: 1.7; color: var(--text-2); font-size: 14px; }
.steps li::marker { color: var(--accent); }

/* tariffs */
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.cards .tariff { padding: 14px; cursor: default; }
.cards .tariff:first-child { grid-column: span 2; }   /* 1w wide */
.cards .tariff:last-child  { grid-column: span 2; }   /* 12m wide hero */

.tariff-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 6px;
}
.tariff-title { font-weight: 600; font-size: 15px; }
.tariff-price { font-size: 24px; font-weight: 700; letter-spacing: -0.02em; margin-top: 4px; }
.tariff-price .star { font-size: 18px; }
.tariff-sub { color: var(--text-2); margin: 4px 0 12px; min-height: 1em; }
.tariff .btn { width: 100%; }

.pill {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px; font-size: 11px; font-weight: 600;
  border-radius: 999px;
  background: rgba(252,211,77,0.10); color: var(--star);
  border: 1px solid rgba(252,211,77,0.25);
}
.pill.ok  { background: rgba(52,211,153,0.10); color: var(--ok); border-color: rgba(52,211,153,0.25); }
.pill.warn { background: rgba(251,191,36,0.10); color: var(--warn); border-color: rgba(251,191,36,0.25); }

/* invite */
.link-box {
  background: var(--bg-2); border-radius: 10px;
  padding: 10px 12px; margin-bottom: 10px;
  word-break: break-all;
}
.kpi-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.kpi-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }
.kpi-big   { font-size: 22px; font-weight: 700; margin-top: 2px; }

.referees { padding: 0; margin: 8px 0 0; list-style: none; display: flex; flex-direction: column; gap: 8px; }
.referees li {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 12px; background: var(--bg-2); border-radius: 10px;
}
.referees li .name { font-weight: 500; }
.referees li .meta { font-size: 12px; color: var(--text-2); }

.promo { background: linear-gradient(135deg, rgba(129,140,248,0.10), rgba(252,211,77,0.05)); border: 1px solid rgba(129,140,248,0.25); }

/* toast */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(120%);
  background: var(--card-2); color: var(--text);
  padding: 10px 16px; border-radius: 12px;
  font-size: 13px; font-weight: 500;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  border: 1px solid var(--border-2);
  transition: transform 0.25s ease, opacity 0.25s ease;
  opacity: 0; pointer-events: none; z-index: 100;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

/* loader */
.loader { display: flex; justify-content: center; align-items: center; padding: 60px 0; }
.spinner {
  width: 28px; height: 28px;
  border: 2.5px solid var(--border-2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }