:root[data-theme="dark"] {
  --bg: #0a0e1a; --bg-2: #131829; --bg-3: #1c2236; --border: #2a3147;
  --text: #e8ecf4; --text-dim: #8b94ad;
  --accent: #6c5ce7; --accent-2: #a29bfe;
  --success: #00d68f; --error: #ff5c7c; --warn: #ffb020;
  --shadow: 0 20px 60px rgba(0,0,0,0.5);
}
:root[data-theme="light"] {
  --bg: #f5f7fb; --bg-2: #ffffff; --bg-3: #eef1f8; --border: #dfe4ee;
  --text: #1a1f2e; --text-dim: #6b7591;
  --accent: #6c5ce7; --accent-2: #8b7ff0;
  --success: #00b37e; --error: #e63950; --warn: #d97706;
  --shadow: 0 20px 60px rgba(30,40,80,0.12);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg); color: var(--text);
  min-height: 100vh; padding: 20px;
  transition: background 0.3s, color 0.3s;
  position: relative; overflow-x: hidden;
}
body::before {
  content: ''; position: fixed; top: -20%; left: 50%;
  transform: translateX(-50%); width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(108,92,231,0.18), transparent 60%);
  pointer-events: none; z-index: 0;
}
.container { max-width: 680px; margin: 0 auto; position: relative; z-index: 1; width: 100%; }
.header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 32px; gap: 12px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; letter-spacing: -0.5px; min-width: 0; }
.logo span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.logo-img { width: 40px; height: 40px; border-radius: 10px; object-fit: cover; box-shadow: 0 8px 24px rgba(108,92,231,0.4); flex-shrink: 0; }
.theme-btn {
  width: 42px; height: 42px; border-radius: 12px; border: 1px solid var(--border);
  background: var(--bg-2); color: var(--text); cursor: pointer;
  display: grid; place-items: center; transition: transform 0.2s, background 0.2s; flex-shrink: 0;
}
.theme-btn:hover { transform: scale(1.08); background: var(--bg-3); }
.card { background: var(--bg-2); border: 1px solid var(--border); border-radius: 20px; padding: 24px; box-shadow: var(--shadow); margin-bottom: 20px; }
.card h2 { font-size: 18px; font-weight: 700; margin-bottom: 18px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.card h2 .badge { font-size: 11px; font-weight: 600; background: var(--bg-3); color: var(--text-dim); padding: 3px 8px; border-radius: 6px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12px; font-weight: 600; color: var(--text-dim); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px; }
.field label .opt { text-transform: none; color: var(--text-dim); font-weight: 400; }
.input-wrap { position: relative; }
.input-wrap input {
  width: 100%; padding: 14px 14px 14px 44px; border-radius: 12px;
  border: 1.5px solid var(--border); background: var(--bg); color: var(--text);
  font-size: 15px; font-family: inherit; outline: none;
  transition: border 0.2s, box-shadow 0.2s;
}
.input-wrap input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(108,92,231,0.15); }
.input-wrap .icon { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--text-dim); pointer-events: none; }
.input-prefix { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--text-dim); font-size: 14px; pointer-events: none; font-weight: 500; }
.input-wrap.has-prefix input { padding-left: 130px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 540px) { .row { grid-template-columns: 1fr; } body { padding: 12px; } .card { padding: 18px; } }
.btn {
  width: 100%; padding: 14px; border-radius: 12px; border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white; font-size: 15px; font-weight: 700; font-family: inherit;
  cursor: pointer; transition: transform 0.15s, box-shadow 0.2s, opacity 0.2s;
  box-shadow: 0 8px 24px rgba(108,92,231,0.35);
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.btn:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(108,92,231,0.45); }
.btn:active:not(:disabled) { transform: translateY(0); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-ghost { background: var(--bg-3); color: var(--text); border: 1px solid var(--border); box-shadow: none; }
.btn-ghost:hover:not(:disabled) { background: var(--bg); box-shadow: none; }
.result { margin-top: 20px; padding: 18px; background: var(--bg-3); border: 1.5px solid var(--accent); border-radius: 14px; display: none; animation: slideIn 0.35s ease; }
.result.show { display: block; }
@keyframes slideIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }
.result-label { font-size: 12px; font-weight: 600; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 10px; }
.result-url { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.result-url a { flex: 1; color: var(--accent-2); font-weight: 700; font-size: 16px; text-decoration: none; word-break: break-all; min-width: 0; }
.result-url a:hover { text-decoration: underline; }
.icon-btn {
  width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--bg-2); color: var(--text); cursor: pointer;
  display: grid; place-items: center; transition: background 0.2s, transform 0.15s; flex-shrink: 0;
}
.icon-btn:hover { background: var(--accent); color: white; transform: scale(1.05); }
.icon-btn.danger:hover { background: var(--error); }
.share-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; padding-top: 14px; border-top: 1px solid var(--border); }
.share-btn {
  flex: 1; min-width: 100px; padding: 9px 12px; border-radius: 9px;
  border: 1px solid var(--border); background: var(--bg-2); color: var(--text);
  font-size: 13px; font-weight: 600; font-family: inherit; cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  transition: background 0.2s, transform 0.15s;
}
.share-btn:hover { background: var(--bg-3); transform: translateY(-1px); }
.qr-wrap { display: none; margin-top: 14px; padding: 16px; background: var(--bg-2); border-radius: 12px; text-align: center; border: 1px solid var(--border); }
.qr-wrap.show { display: block; }
#qrcode { display: inline-block; padding: 12px; background: white; border-radius: 10px; }
.qr-actions { margin-top: 10px; display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.recent-list { display: flex; flex-direction: column; gap: 10px; }
.recent-item { display: flex; align-items: center; gap: 10px; padding: 12px; background: var(--bg-3); border-radius: 10px; border: 1px solid transparent; transition: border 0.2s; flex-wrap: wrap; }
.recent-item:hover { border-color: var(--border); }
.recent-info { flex: 1; min-width: 140px; }
.recent-short { font-size: 14px; font-weight: 700; color: var(--accent-2); word-break: break-all; text-decoration: none; }
.recent-short:hover { text-decoration: underline; }
.recent-meta { font-size: 11px; color: var(--text-dim); margin-top: 4px; display: flex; gap: 10px; flex-wrap: wrap; }
.recent-meta span { display: inline-flex; align-items: center; gap: 3px; }
.recent-actions { display: flex; gap: 6px; flex-shrink: 0; }
.empty-state { text-align: center; color: var(--text-dim); padding: 24px; font-size: 14px; }
.toast-container { position: fixed; top: 20px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; max-width: calc(100vw - 40px); }
.toast {
  background: var(--bg-2); border: 1px solid var(--border);
  border-left: 4px solid var(--accent); padding: 14px 18px; border-radius: 10px;
  box-shadow: var(--shadow); display: flex; align-items: center; gap: 10px;
  font-size: 14px; font-weight: 500; animation: toastIn 0.3s ease; min-width: 220px; max-width: 340px;
}
.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--error); }
@keyframes toastIn { from { opacity: 0; transform: translateX(100%); } to { opacity: 1; transform: translateX(0); } }
@keyframes toastOut { to { opacity: 0; transform: translateX(100%); } }
#redirectOverlay { display: none; position: fixed; inset: 0; background: var(--bg); z-index: 1000; align-items: center; justify-content: center; padding: 20px; }
#redirectOverlay.show { display: flex; }
.redirect-box { text-align: center; max-width: 440px; width: 100%; }
.redirect-box h3 { font-size: 20px; margin: 20px 0 8px; font-weight: 700; }
.redirect-box p { color: var(--text-dim); font-size: 14px; margin-bottom: 20px; word-break: break-all; }
.spinner { width: 48px; height: 48px; border: 4px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.8s linear infinite; margin: 0 auto; }
@keyframes spin { to { transform: rotate(360deg); } }
.countdown { font-size: 42px; font-weight: 800; background: linear-gradient(135deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; margin: 10px 0; }
.redirect-actions { display: flex; gap: 10px; margin-top: 20px; flex-wrap: wrap; }
.redirect-actions .btn { flex: 1; min-width: 120px; }
.footer { text-align: center; color: var(--text-dim); font-size: 12px; margin-top: 24px; padding-bottom: 20px; }
.footer a { color: var(--accent-2); text-decoration: none; }
.admin-item { display: flex; align-items: flex-start; gap: 10px; padding: 14px; background: var(--bg-3); border-radius: 10px; border: 1px solid transparent; margin-bottom: 10px; flex-wrap: wrap; }
.admin-item:hover { border-color: var(--border); }
.admin-item-info { flex: 1; min-width: 200px; }
.admin-code { font-size: 14px; font-weight: 700; color: var(--accent-2); word-break: break-all; text-decoration: none; }
.admin-dest { font-size: 12px; color: var(--text-dim); word-break: break-all; margin-top: 4px; }
.admin-meta { font-size: 11px; color: var(--text-dim); margin-top: 6px; display: flex; gap: 12px; flex-wrap: wrap; }
.admin-meta span { display: inline-flex; align-items: center; gap: 3px; }
.admin-stats { display: flex; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.stat-box { flex: 1; min-width: 100px; background: var(--bg-3); padding: 14px; border-radius: 10px; text-align: center; }
.stat-box .num { font-size: 24px; font-weight: 800; color: var(--accent-2); }
.stat-box .lbl { font-size: 11px; color: var(--text-dim); text-transform: uppercase; font-weight: 600; margin-top: 4px; }
@media (max-width: 480px) {
  .share-btn { min-width: 0; font-size: 12px; padding: 8px 10px; }
  .share-btn svg { width: 14px; height: 14px; }
  .logo { font-size: 18px; }
  .logo-img { width: 34px; height: 34px; }
}