:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel-2: #273449;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --accent: #2dd4bf;
  --accent-dark: #14b8a6;
  --danger: #ef4444;
  --border: #334155;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100%;
}

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 24px;
  display: flex; flex-direction: column;
  min-height: 100vh;
}

.hdr { text-align: center; margin-bottom: 28px; }
.brand { font-size: 22px; font-weight: 700; letter-spacing: -0.01em; }
.sub { color: var(--muted); font-size: 14px; margin-top: 4px; }

.main { flex: 1; }

.loader { text-align: center; color: var(--muted); padding: 40px 0; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
}
.card h2 { margin: 0 0 6px; font-size: 20px; }
.card .hint { color: var(--muted); margin: 0 0 18px; font-size: 14px; line-height: 1.45; }

label {
  display: block;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 13px;
}
input[type=email], input[type=password], input[type=text] {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  border-radius: 10px;
  font-size: 16px;
  outline: none;
}
input:focus { border-color: var(--accent); }

button {
  cursor: pointer;
  font: inherit;
  border: none;
  border-radius: 10px;
  padding: 12px 18px;
  background: var(--accent);
  color: #042b27;
  font-weight: 600;
  font-size: 15px;
  width: 100%;
  margin-top: 6px;
  transition: background 0.15s;
}
button:hover:not(:disabled) { background: var(--accent-dark); }
button:disabled { opacity: 0.6; cursor: wait; }

button.link {
  background: transparent;
  color: var(--accent);
  padding: 8px;
  margin-top: 8px;
  width: auto;
  font-weight: 500;
  font-size: 14px;
}
button.link:hover:not(:disabled) { background: transparent; text-decoration: underline; }

.error {
  margin-top: 12px;
  padding: 10px 12px;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #fca5a5;
  border-radius: 10px;
  font-size: 14px;
  line-height: 1.4;
}

.user-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 16px;
  margin-bottom: 18px;
  font-size: 14px;
  color: var(--muted);
}
.user-bar b { color: var(--text); font-weight: 600; }
.user-bar button.link { margin: 0; padding: 4px 8px; }

.tariffs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 16px 0 8px;
}
@media (min-width: 600px) {
  .tariffs { grid-template-columns: repeat(3, 1fr); }
}

.tariff {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px 18px 18px;
  text-align: center;
}
.tariff h3 { margin: 0 0 4px; font-size: 17px; }
.tariff .price { font-size: 26px; font-weight: 700; margin: 6px 0 4px; color: var(--accent); }
.tariff .muted { color: var(--muted); font-size: 12px; margin: 0 0 14px; }
.tariff .badge {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #042b27;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.success { text-align: center; padding: 36px 24px; }
.success .check {
  width: 64px; height: 64px; line-height: 64px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: rgba(45, 212, 191, 0.18);
  color: var(--accent);
  font-size: 36px;
  font-weight: 700;
}
.success p { color: var(--muted); line-height: 1.5; }
.success p b { color: var(--text); }
.success .muted { font-size: 13px; }

.ftr {
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.ftr p { margin: 6px 0; }