:root {
  --bg: #0f0c1d;
  --bg-card: #1a1730;
  --bg-input: #211d3d;
  --text: #f1eefc;
  --text-muted: #a79fd1;
  --accent: #8b5cf6;
  --accent-2: #ec4899;
  --border: #322c56;
  --success: #34d399;
  --error: #f87171;
}

[data-theme="light"] {
  --bg: #f7f6fd;
  --bg-card: #ffffff;
  --bg-input: #f1eefc;
  --text: #1e1b34;
  --text-muted: #625d80;
  --border: #e2defa;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  transition: background 0.2s, color 0.2s;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
}

.brand {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
}
.brand span {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav-links { display: flex; align-items: center; gap: 1.2rem; }
.btn-nav-primary {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: white !important;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  text-decoration: none !important;
}

.theme-toggle {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  padding: 0.4rem 0.6rem;
}

.hero {
  max-width: 900px;
  margin: 3rem auto;
  padding: 0 1.5rem;
  text-align: center;
}
.hero h1 { font-size: 2.6rem; margin-bottom: 0.3rem; }
.subtitle { color: var(--text-muted); font-size: 1.15rem; margin-bottom: 2.5rem; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 2.5rem;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.2rem;
  text-align: left;
}
.feature-card h3 { margin: 0 0 0.4rem 0; }
.feature-card p { margin: 0; color: var(--text-muted); font-size: 0.92rem; }

.cta-row { display: flex; gap: 1rem; justify-content: center; }

.btn-primary, .btn-secondary {
  display: inline-block;
  padding: 0.75rem 1.6rem;
  border-radius: 10px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none !important;
}
.btn-primary {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: white;
}
.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-block { width: 100%; }

.auth-page {
  display: flex;
  justify-content: center;
  padding: 3rem 1.5rem;
}
.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2rem;
  width: 100%;
  max-width: 400px;
}
.auth-card.centered { text-align: center; }
.auth-card h2 { margin-top: 0; }
.auth-switch { text-align: center; color: var(--text-muted); margin-top: 1rem; }

form label {
  display: block;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}
form input {
  display: block;
  width: 100%;
  margin-top: 0.3rem;
  padding: 0.6rem 0.7rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 1rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.alert { padding: 0.7rem 1rem; border-radius: 8px; margin-bottom: 1rem; font-size: 0.92rem; }
.alert-error { background: rgba(248, 113, 113, 0.15); color: var(--error); border: 1px solid var(--error); }
.alert-success { background: rgba(52, 211, 153, 0.15); color: var(--success); border: 1px solid var(--success); }

.dashboard { max-width: 1000px; margin: 0 auto; padding: 2rem 1.5rem 4rem; }

.stats-row { display: flex; gap: 1rem; margin-bottom: 2rem; flex-wrap: wrap; }
.stat-box {
  flex: 1;
  min-width: 140px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.2rem;
  text-align: center;
}
.stat-num { display: block; font-size: 1.8rem; font-weight: 700; color: var(--accent); }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.card h2 { margin-top: 0; }

.empty-state { color: var(--text-muted); }

.link-list { display: flex; flex-direction: column; gap: 1rem; }
.link-item {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 1.2rem;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
}
.link-item.inactive { opacity: 0.55; }
.link-top { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.short-code { font-weight: 700; font-size: 1.05rem; }
.badge {
  font-size: 0.72rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  padding: 0.15rem 0.5rem;
  border-radius: 20px;
  color: var(--text-muted);
}
.badge-off { color: var(--error); border-color: var(--error); }
.link-title { font-weight: 600; margin-top: 0.2rem; }
.long-url {
  color: var(--text-muted);
  font-size: 0.85rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 480px;
}
.link-meta { display: flex; gap: 1rem; color: var(--text-muted); font-size: 0.8rem; margin-top: 0.4rem; }

.link-qr { text-align: center; }
.link-qr img { border-radius: 8px; border: 1px solid var(--border); }
.qr-links { display: flex; gap: 0.5rem; justify-content: center; font-size: 0.78rem; margin-top: 0.3rem; }

.link-actions { display: flex; flex-direction: column; gap: 0.4rem; }
.link-btn {
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.4rem 0.7rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.82rem;
  text-align: center;
}
.link-btn-danger { color: var(--error); border-color: var(--error); }

.api-key-row { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; margin: 1rem 0; }
.api-key-row code {
  background: var(--bg-input);
  padding: 0.5rem 0.8rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  word-break: break-all;
}
.code-block {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.82rem;
}

.back-link { display: inline-block; margin-bottom: 1rem; }

.clicks-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.clicks-table th, .clicks-table td {
  text-align: left;
  padding: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.ua-cell { max-width: 280px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.82rem;
  padding: 2rem 1rem;
}

@media (max-width: 700px) {
  .link-item { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .long-url { max-width: 100%; }
}