:root {
  --bg: #0f1419;
  --bg-card: #1a2332;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --primary: #58a6ff;
  --primary-hover: #79b8ff;
  --danger: #f85149;
  --danger-hover: #ff7b72;
  --warning: #d29922;
  --warning-bg: rgba(210, 153, 34, 0.15);
  --success: #3fb950;
  --border: #30363d;
  --radius: 12px;
  --shadow: 0 4px 12px rgba(0,0,0,0.3);
  --font: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
}

.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.5rem;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
}

.nav a:hover {
  color: var(--primary);
}

.main {
  flex: 1;
}

.footer {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.title {
  font-size: 1.5rem;
  margin: 0 0 0.5rem 0;
}

.subtitle {
  font-size: 1.1rem;
  margin: 0 0 1rem 0;
}

.text-muted {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0 0 1rem 0;
}

.section {
  margin-bottom: 1.5rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}

.card--center {
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.card--narrow {
  max-width: 360px;
}

.card--muted {
  background: var(--bg);
  border-style: dashed;
}

.domain-card {
  padding: 1rem 1.25rem;
}

.domain-card--warning {
  background: var(--warning-bg);
  border-color: var(--warning);
  color: #f0e68c;
}

.domain-name {
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.domain-days, .domain-expires {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.domain-card--warning .domain-days {
  color: #f0e68c;
}

.domain-error {
  color: var(--danger);
  font-size: 0.9rem;
}

.domains-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.form-group {
  margin-bottom: 1rem;
}

.label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.input {
  width: 100%;
  max-width: 400px;
  padding: 0.6rem 0.75rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.input:focus {
  outline: none;
  border-color: var(--primary);
}

.btn {
  display: inline-block;
  padding: 0.6rem 1rem;
  font-size: 0.95rem;
  font-family: inherit;
  cursor: pointer;
  border: none;
  border-radius: 8px;
  text-decoration: none;
  background: var(--border);
  color: var(--text);
}

.btn--primary {
  background: var(--primary);
  color: var(--bg);
}

.btn--primary:hover {
  background: var(--primary-hover);
}

.btn--secondary {
  background: var(--border);
}

.btn--secondary:hover {
  background: var(--text-muted);
}

.btn--danger {
  background: var(--danger);
  color: #fff;
}

.btn--danger:hover {
  background: var(--danger-hover);
}

.btn--small {
  padding: 0.4rem 0.7rem;
  font-size: 0.85rem;
}

.form--inline {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1rem;
}

.form--inline .form-group {
  margin-bottom: 0;
  flex: 1 1 200px;
}

.form--inline .input {
  max-width: none;
}

.message {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.message--success {
  background: rgba(63, 185, 80, 0.2);
  border: 1px solid var(--success);
  color: var(--success);
}

.message--error {
  background: rgba(248, 81, 73, 0.15);
  border: 1px solid var(--danger);
  color: var(--danger);
}

.list-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}

.list-row:last-child {
  border-bottom: none;
}

.list-row__main {
  font-weight: 500;
}

.list-row__actions {
  display: flex;
  gap: 0.5rem;
}

.link {
  color: var(--primary);
  text-decoration: none;
}

.link:hover {
  text-decoration: underline;
}

.telegram-help {
  font-size: 0.85rem;
  line-height: 1.5;
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  background: var(--bg);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.telegram-help code {
  font-size: 0.9em;
  padding: 0.1em 0.3em;
  background: var(--bg-card);
  border-radius: 4px;
}

@media (max-width: 640px) {
  .page {
    padding: 0.75rem;
  }

  .header {
    flex-direction: column;
    align-items: flex-start;
  }

  .domains-grid {
    grid-template-columns: 1fr;
  }

  .form--inline {
    flex-direction: column;
    align-items: stretch;
  }

  .form--inline .input {
    max-width: none;
  }

  .list-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .list-row__actions {
    width: 100%;
  }

  .btn {
    min-height: 44px;
    padding: 0.75rem 1rem;
  }

  .btn--small {
    min-height: 36px;
  }
}