:root {
  --bg: #0f1115;
  --panel: #161922;
  --panel-2: #1e2230;
  --border: #2a2f3d;
  --text: #e8e9ed;
  --muted: #8b91a3;
  --accent: #6c8cff;
  --accent-2: #8f6cff;
  --danger: #ff5c6c;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

/* ---------- LOGIN ---------- */
.login-body {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 30% 20%, #1c2030 0%, #0f1115 60%);
}
.login-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 36px;
  width: 100%;
  max-width: 360px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.login-icon { font-size: 42px; margin-bottom: 8px; }
.login-card h1 { margin: 0 0 4px; font-size: 22px; }
.muted { color: var(--muted); font-size: 14px; }
.login-card form { margin-top: 24px; text-align: left; }
.login-card label { display: block; font-size: 13px; margin-bottom: 6px; color: var(--muted); }
.login-card input[type=password] {
  width: 100%; padding: 12px 14px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--panel-2); color: var(--text); font-size: 15px; margin-bottom: 18px;
}
.login-card button[type=submit] {
  width: 100%; padding: 12px; border: none; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; font-size: 15px; font-weight: 600; cursor: pointer;
}
.login-card button[type=submit]:hover { opacity: 0.92; }
.alert { padding: 10px 12px; border-radius: 8px; font-size: 13px; margin-top: 16px; text-align: left; }
.alert-error { background: rgba(255,92,108,0.12); color: var(--danger); border: 1px solid rgba(255,92,108,0.3); }
.hint { margin-top: 20px; font-size: 12px; color: var(--muted); }
.hint code { background: var(--panel-2); padding: 2px 6px; border-radius: 4px; color: var(--text); }

/* ---------- TOPBAR ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; background: var(--panel); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 20;
}
.logo { font-weight: 700; font-size: 18px; }
.topbar-right { display: flex; gap: 10px; flex-wrap: wrap; }
.btn {
  padding: 9px 14px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--panel-2); color: var(--text); font-size: 13px; cursor: pointer;
  text-decoration: none; display: inline-flex; align-items: center; gap: 6px;
}
.btn:hover { background: #262b3a; }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); border: none; color: #fff; font-weight: 600; }
.btn-danger { background: var(--danger); border: none; color: #fff; font-weight: 600; }
.btn-danger-outline { color: var(--danger); border-color: rgba(255,92,108,0.4); }
.btn-ghost {}

/* ---------- BREADCRUMB ---------- */
.breadcrumb {
  padding: 14px 24px; font-size: 14px; color: var(--muted);
  display: flex; gap: 6px; flex-wrap: wrap; align-items: center;
}
.breadcrumb a, .breadcrumb span.crumb {
  color: var(--text); text-decoration: none; cursor: pointer; padding: 2px 4px; border-radius: 4px;
}
.breadcrumb a:hover { background: var(--panel-2); }
.breadcrumb .sep { color: var(--muted); }

/* ---------- GRID ---------- */
.drop-zone { padding: 12px 24px 60px; min-height: 60vh; }
.drop-zone.dragover { outline: 2px dashed var(--accent); outline-offset: -8px; background: rgba(108,140,255,0.04); }
.grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 16px;
}
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; position: relative; cursor: pointer; transition: transform .15s, border-color .15s;
}
.card:hover { transform: translateY(-2px); border-color: #3a4154; }
.card .thumb-wrap {
  width: 100%; aspect-ratio: 1/1; background: #0c0e13; display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.card img.thumb, .card video.thumb { width: 100%; height: 100%; object-fit: cover; }
.folder-card .thumb-wrap { font-size: 46px; }
.card .label {
  padding: 8px 10px; font-size: 12.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  border-top: 1px solid var(--border);
}
.card .badge {
  position: absolute; top: 8px; left: 8px; background: rgba(0,0,0,0.55); color: #fff;
  font-size: 11px; padding: 2px 7px; border-radius: 20px;
}
.card .actions {
  position: absolute; top: 6px; right: 6px; display: flex; gap: 4px; opacity: 0; transition: opacity .15s;
}
.card:hover .actions { opacity: 1; }
.icon-btn {
  width: 28px; height: 28px; border-radius: 50%; border: none; background: rgba(0,0,0,0.6); color: #fff;
  font-size: 13px; display: flex; align-items: center; justify-content: center; cursor: pointer;
}
.icon-btn:hover { background: rgba(0,0,0,0.85); }
.icon-btn.danger:hover { background: var(--danger); }

.empty-state { text-align: center; padding: 80px 20px; color: var(--muted); }
.empty-icon { font-size: 50px; margin-bottom: 10px; }

/* ---------- LIGHTBOX ---------- */
.lightbox {
  position: fixed; inset: 0; background: rgba(0,0,0,0.92); z-index: 100;
  display: flex; align-items: center; justify-content: center; padding: 30px;
}
.lightbox-content img, .lightbox-content video {
  max-width: 90vw; max-height: 85vh; border-radius: 8px;
}
.lightbox-close {
  position: absolute; top: 18px; right: 24px; background: none; border: none; color: #fff;
  font-size: 32px; cursor: pointer;
}

/* ---------- MODALS ---------- */
.modal {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 200;
  display: flex; align-items: center; justify-content: center;
}
.modal-box {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; width: 90%; max-width: 360px;
}
.modal-box input[type=text] {
  width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--panel-2); color: var(--text); font-size: 14px; margin-top: 10px;
}
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }

/* ---------- TOASTS ---------- */
.toast-container {
  position: fixed; bottom: 20px; right: 20px; display: flex; flex-direction: column; gap: 10px; z-index: 300;
  max-width: 320px;
}
.toast {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px 14px; font-size: 13px; box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}
.toast.success { border-color: rgba(108,140,255,0.4); }
.toast.error { border-color: rgba(255,92,108,0.4); color: var(--danger); }
.toast .progress-bar { height: 4px; background: var(--panel-2); border-radius: 4px; margin-top: 8px; overflow: hidden; }
.toast .progress-fill { height: 100%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); width: 0%; transition: width .2s; }

@media (max-width: 600px) {
  .topbar { flex-direction: column; align-items: flex-start; gap: 10px; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
}