*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f172a;
  --bg2: #1e293b;
  --bg3: #334155;
  --border: #1e293b;
  --border2: #334155;
  --text: #e2e8f0;
  --text2: #94a3b8;
  --text3: #64748b;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --primary-dim: rgba(59,130,246,0.15);
  --success: #22c55e;
  --danger: #ef4444;
  --warning: #f59e0b;
  --radius: 8px;
  --radius-lg: 12px;
}

html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; min-height: 100vh; display: flex; flex-direction: column; }

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

.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* ── Navbar ── */
.navbar { background: rgba(15,23,42,0.95); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; backdrop-filter: blur(8px); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.logo { font-size: 1.2rem; font-weight: 700; color: var(--text); letter-spacing: -0.5px; }
.logo:hover { text-decoration: none; color: var(--primary); }
.nav-links { display: flex; align-items: center; gap: 12px; }
.nav-user { color: var(--text2); font-size: 0.875rem; }

/* ── Buttons ── */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 8px 16px; border-radius: var(--radius); font-size: 0.875rem; font-weight: 500; cursor: pointer; border: none; transition: all 0.15s; text-decoration: none; white-space: nowrap; }
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); color: #fff; }
.btn-ghost { background: transparent; color: var(--text2); border: 1px solid var(--border2); }
.btn-ghost:hover { background: var(--bg2); color: var(--text); }
.btn-outline { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
.btn-outline:hover { background: var(--primary-dim); }
.btn-danger { background: transparent; color: var(--danger); border: 1px solid var(--danger); }
.btn-danger:hover { background: rgba(239,68,68,0.1); }
.btn-success { background: var(--success); color: #fff; }
.btn-sm { padding: 5px 12px; font-size: 0.8rem; }
.btn-xs { padding: 3px 8px; font-size: 0.75rem; }
.btn-lg { padding: 12px 24px; font-size: 1rem; }
.btn-block { width: 100%; }

/* ── Inputs ── */
.input { width: 100%; background: var(--bg2); border: 1px solid var(--border2); border-radius: var(--radius); color: var(--text); padding: 10px 14px; font-size: 0.9rem; transition: border-color 0.15s; }
.input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-dim); }
.input::placeholder { color: var(--text3); }
.input-lg { padding: 13px 16px; font-size: 1rem; }
.input-sm { padding: 7px 12px; font-size: 0.85rem; }

.input-group { display: flex; gap: 8px; }
.input-group .input { flex: 1; }

.input-prefix-wrap { display: flex; align-items: center; border: 1px solid var(--border2); border-radius: var(--radius); overflow: hidden; background: var(--bg2); }
.input-prefix { padding: 10px 12px; color: var(--text3); font-size: 0.8rem; white-space: nowrap; border-right: 1px solid var(--border2); background: var(--bg3); }
.input-with-prefix { border: none; border-radius: 0; flex: 1; background: transparent; }
.input-with-prefix:focus { box-shadow: none; }
.input-prefix-wrap:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-dim); }

/* ── Main ── */
.main-content { flex: 1; }

/* ── Alerts ── */
.alert { padding: 12px 16px; border-radius: var(--radius); margin-bottom: 16px; font-size: 0.9rem; }
.alert-error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; }
.alert-success { background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.3); color: #86efac; }
.alert-info { background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.3); color: #93c5fd; }

/* ── Cards ── */
.card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; margin-bottom: 20px; }
.card-title { font-size: 1rem; font-weight: 600; margin-bottom: 16px; color: var(--text); }
.card-header-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; flex-wrap: wrap; gap: 12px; }
.card-header-row .card-title { margin-bottom: 0; }

/* ── Badges ── */
.badge { display: inline-flex; align-items: center; padding: 2px 8px; border-radius: 9999px; font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.badge-free { background: rgba(148,163,184,0.15); color: var(--text2); }
.badge-pro { background: rgba(59,130,246,0.15); color: var(--primary); }
.badge-gray { background: rgba(148,163,184,0.15); color: var(--text2); }
.badge-red { background: rgba(239,68,68,0.15); color: #fca5a5; }

/* ── Hero ── */
.hero { padding: 80px 0 60px; text-align: center; background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(59,130,246,0.15), transparent); }
.hero-badge { display: inline-flex; align-items: center; gap: 6px; background: var(--primary-dim); color: var(--primary); border: 1px solid rgba(59,130,246,0.3); padding: 4px 14px; border-radius: 9999px; font-size: 0.8rem; font-weight: 500; margin-bottom: 20px; }
.hero-title { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; letter-spacing: -1px; background: linear-gradient(135deg, #e2e8f0 0%, #94a3b8 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1.2; margin-bottom: 12px; }
.hero-sub { font-size: 1.1rem; color: var(--text2); margin-bottom: 40px; }

.shortener-box { background: var(--bg2); border: 1px solid var(--border2); border-radius: var(--radius-lg); padding: 32px; max-width: 680px; margin: 0 auto; text-align: left; }
.advanced-row { display: flex; gap: 8px; margin-top: 10px; }
.advanced-row .input { flex: 1; }

.result-box { text-align: center; }
.result-label { display: block; font-size: 0.8rem; color: var(--text2); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.result-link-row { display: flex; align-items: center; justify-content: center; gap: 12px; background: var(--bg); border: 1px solid var(--border2); border-radius: var(--radius); padding: 14px 16px; }
.result-link { font-size: 1.1rem; font-weight: 600; color: var(--primary); word-break: break-all; }

/* ── Features ── */
.features { padding: 70px 0; }
.section-title { text-align: center; font-size: 1.8rem; font-weight: 700; margin-bottom: 40px; letter-spacing: -0.5px; }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.feature-card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px 24px; }
.feature-icon { font-size: 2rem; margin-bottom: 12px; }
.feature-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
.feature-card p { font-size: 0.875rem; color: var(--text2); line-height: 1.7; }

/* ── Pricing ── */
.pricing { padding: 60px 0 80px; }
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; max-width: 600px; margin: 0 auto; }
.pricing-card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; position: relative; }
.pricing-featured { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary), 0 0 40px rgba(59,130,246,0.1); }
.plan-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; font-size: 0.75rem; font-weight: 600; padding: 3px 12px; border-radius: 9999px; white-space: nowrap; }
.plan-name { font-size: 0.9rem; font-weight: 600; color: var(--text2); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 8px; }
.plan-price { font-size: 2.5rem; font-weight: 800; letter-spacing: -1px; margin-bottom: 20px; }
.plan-price span { font-size: 1rem; font-weight: 400; color: var(--text2); }
.plan-features { list-style: none; margin-bottom: 24px; }
.plan-features li { padding: 6px 0; font-size: 0.875rem; color: var(--text2); border-bottom: 1px solid var(--border); }
.plan-features li:last-child { border-bottom: none; }
.plan-features li:has(✗) { color: var(--text3); }

/* ── Auth ── */
.auth-wrap { display: flex; align-items: center; justify-content: center; min-height: calc(100vh - 61px); padding: 40px 20px; }
.auth-card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 40px; width: 100%; max-width: 420px; }
.auth-logo { font-size: 1.5rem; font-weight: 700; text-align: center; margin-bottom: 8px; }
.auth-title { font-size: 1.4rem; font-weight: 700; text-align: center; margin-bottom: 24px; }
.auth-switch { text-align: center; margin-top: 20px; color: var(--text2); font-size: 0.875rem; }

/* ── Forms ── */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 500; color: var(--text2); margin-bottom: 6px; }
.form-row { display: flex; gap: 12px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 140px; }
.flex-1 { flex: 1; }
.flex-2 { flex: 2; }
.flex-3 { flex: 3; }
.form-group-btn { display: flex; align-items: flex-end; }
.form-group-btn .btn { height: 42px; }

/* ── Dashboard ── */
.dashboard { padding: 32px 20px; }
.dash-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 24px; gap: 20px; flex-wrap: wrap; }
.dash-header h1 { font-size: 1.6rem; font-weight: 700; letter-spacing: -0.5px; }
.dash-stats { display: flex; gap: 16px; }
.stat-box { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 24px; text-align: center; min-width: 90px; }
.stat-num { font-size: 1.8rem; font-weight: 700; letter-spacing: -1px; color: var(--primary); }
.stat-label { font-size: 0.75rem; color: var(--text2); margin-top: 2px; }

.new-link-card { background: linear-gradient(135deg, var(--bg2), rgba(59,130,246,0.05)); border-color: rgba(59,130,246,0.2); }

/* ── Link List ── */
.link-list { display: flex; flex-direction: column; gap: 12px; }
.link-item { background: var(--bg); border: 1px solid var(--border2); border-radius: var(--radius); padding: 16px; display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; transition: border-color 0.15s; }
.link-item:hover { border-color: var(--border2); }
.link-inactive { opacity: 0.6; }
.link-expired { opacity: 0.5; }
.link-main { flex: 1; min-width: 0; }
.link-code-row { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; flex-wrap: wrap; }
.link-short { font-weight: 600; color: var(--primary); font-size: 0.95rem; }
.link-original { font-size: 0.8rem; color: var(--text3); word-break: break-all; margin-bottom: 4px; }
.link-title { font-size: 0.8rem; color: var(--text2); margin-bottom: 4px; }
.link-meta { font-size: 0.75rem; color: var(--text3); }
.link-actions { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; flex-shrink: 0; }

.search-form { display: flex; gap: 8px; }

.empty-state { text-align: center; padding: 48px 20px; }
.empty-icon { font-size: 3rem; margin-bottom: 12px; }
.empty-state p { color: var(--text2); }

/* ── Analytics ── */
.analytics-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-bottom: 20px; }
.progress-row { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--border); }
.progress-row:last-child { border-bottom: none; }
.progress-label { font-size: 0.85rem; min-width: 80px; }
.progress-bar-wrap { flex: 1; background: var(--bg3); border-radius: 4px; height: 8px; overflow: hidden; }
.progress-bar { height: 100%; background: var(--success); border-radius: 4px; transition: width 0.5s; }
.progress-bar-blue { background: var(--primary); }
.progress-num { font-size: 0.8rem; color: var(--text2); min-width: 70px; text-align: right; }

.link-short-lg { font-size: 1.2rem; font-weight: 700; color: var(--primary); }
.link-original-sm { font-size: 0.85rem; color: var(--text2); word-break: break-all; }

/* ── Table ── */
.table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.table th { padding: 10px 12px; text-align: left; color: var(--text2); font-size: 0.8rem; font-weight: 600; border-bottom: 1px solid var(--border2); }
.table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
.table tr:last-child td { border-bottom: none; }
.table a { color: var(--text2); }
.table a:hover { color: var(--primary); }
.text-truncate { max-width: 400px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.text-truncate-sm { display: inline-block; max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; vertical-align: bottom; }

/* ── API Docs ── */
.api-key-box { display: flex; align-items: center; gap: 12px; background: var(--bg); border: 1px solid var(--border2); border-radius: var(--radius); padding: 12px 16px; }
.api-key-box code { flex: 1; font-family: 'Menlo', 'Consolas', monospace; font-size: 0.85rem; color: var(--primary); word-break: break-all; }
.api-endpoint { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; font-size: 1rem; font-weight: 600; }
.api-endpoint code { color: var(--text); }
.method-get { background: rgba(34,197,94,0.15); color: #86efac; padding: 2px 10px; border-radius: 4px; font-size: 0.75rem; font-weight: 700; }
.method-post { background: rgba(59,130,246,0.15); color: #93c5fd; padding: 2px 10px; border-radius: 4px; font-size: 0.75rem; font-weight: 700; }
.code-block { background: var(--bg); border: 1px solid var(--border2); border-radius: var(--radius); padding: 16px; font-family: 'Menlo', 'Consolas', monospace; font-size: 0.82rem; color: #a5f3fc; overflow-x: auto; white-space: pre; line-height: 1.6; }

/* ── Helpers ── */
.text-muted { color: var(--text2); }
.text-muted a { color: var(--primary); }

/* ── Footer ── */
.footer { border-top: 1px solid var(--border); padding: 24px 0; margin-top: auto; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer span { color: var(--text3); font-size: 0.875rem; }
.footer-links { display: flex; gap: 16px; }
.footer-links a { color: var(--text3); font-size: 0.875rem; }
.footer-links a:hover { color: var(--text2); }

/* ── Responsive ── */
@media (max-width: 640px) {
  .hero { padding: 50px 0 40px; }
  .hero-title { font-size: 2rem; }
  .shortener-box { padding: 20px; }
  .advanced-row { flex-direction: column; }
  .input-group { flex-direction: column; }
  .form-row { flex-direction: column; }
  .dash-header { flex-direction: column; }
  .link-item { flex-direction: column; }
  .link-actions { flex-wrap: wrap; }
  .analytics-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
}