:root {
  --bg: #0b1020;
  --panel: #141b2d;
  --panel-2: #1b253b;
  --text: #edf2ff;
  --muted: #94a3b8;
  --primary: #6d7cff;
  --primary-hover: #8490ff;
  --danger: #e65b69;
  --border: #293550;
  --shadow: 0 18px 55px rgba(0, 0, 0, .28);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 0, rgba(109,124,255,.16), transparent 34rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, "Segoe UI", system-ui, sans-serif;
}
main { width: min(1440px, calc(100% - 32px)); margin: 0 auto; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.error { color: #ff8995; min-height: 1.4em; }
.center-card { min-height: 100vh; display: grid; place-items: center; }
.panel {
  background: rgba(20,27,45,.92);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
}
.login-panel { width: min(400px, 100%); padding: 36px; }
.login-panel h1 { margin-bottom: 4px; }
.brand-mark {
  display: grid; place-items: center; width: 50px; height: 50px;
  border-radius: 15px; background: var(--primary); font-weight: 800;
}
label { display: grid; gap: 8px; margin: 18px 0; color: var(--muted); }
input {
  width: 100%; border: 1px solid var(--border); background: #0e1526;
  color: var(--text); border-radius: 11px; padding: 12px 14px; font: inherit;
}
button, .button {
  border: 0; border-radius: 11px; padding: 11px 16px; color: white;
  background: var(--primary); font: inherit; font-weight: 650; cursor: pointer;
  transition: .18s ease;
}
button:hover, .button:hover { background: var(--primary-hover); transform: translateY(-1px); }
button.secondary { background: var(--panel-2); border: 1px solid var(--border); }
button.danger { background: var(--danger); }
button:disabled { opacity: .55; cursor: wait; transform: none; }
header {
  display: flex; justify-content: space-between; align-items: center;
  gap: 20px; padding: 28px 0 20px;
}
header h1, h2 { margin: 0; }
header p { margin: 6px 0 0; }
nav { display: flex; flex-wrap: wrap; gap: 8px; }
.drop-zone {
  min-height: 190px; border: 2px dashed #3c4a70; border-radius: 20px;
  background: rgba(20,27,45,.65); display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 10px; text-align: center;
}
.drop-zone.dragging { border-color: var(--primary); background: rgba(109,124,255,.1); }
.toolbar, .section-title {
  display: flex; justify-content: space-between; gap: 12px; align-items: center;
  margin: 24px 0 16px;
}
.toolbar input { max-width: 430px; }
.gallery {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 16px; padding-bottom: 28px;
}
.card { overflow: hidden; background: var(--panel); border: 1px solid var(--border); border-radius: 16px; }
.preview {
  display: block; width: 100%; aspect-ratio: 4/3; object-fit: cover;
  background: #080d19;
}
.card-body { padding: 14px; }
.file-name { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; font-weight: 650; }
.meta { margin: 5px 0 12px; font-size: 13px; color: var(--muted); }
.deletion-time { margin-top: -7px; }
.links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 7px; }
.links button { padding: 8px; font-size: 13px; background: var(--panel-2); border: 1px solid var(--border); }
.card-actions { display: flex; gap: 8px; margin-top: 10px; }
.card-actions button { flex: 1; padding: 8px; }
.pagination { display: flex; justify-content: center; gap: 8px; padding-bottom: 30px; }
.restore-panel { display: flex; align-items: end; gap: 16px; padding: 18px; margin-bottom: 18px; }
.restore-panel label { flex: 1; margin: 0; }
.trash-settings {
  display: flex; align-items: end; gap: 14px; padding: 16px; margin-bottom: 18px;
}
.trash-settings label { width: min(240px, 100%); margin: 0; }
.backup-list { display: grid; gap: 10px; }
.backup-row {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 16px; background: var(--panel); border: 1px solid var(--border); border-radius: 13px;
}
.backup-actions { display: flex; gap: 8px; }
.button { text-decoration: none; display: inline-block; }
.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%);
  padding: 12px 18px; border-radius: 12px; background: #edf2ff; color: #111827;
  box-shadow: var(--shadow); z-index: 10;
}
@media (max-width: 700px) {
  main { width: min(100% - 20px, 1440px); }
  header { align-items: flex-start; flex-direction: column; }
  .gallery { grid-template-columns: 1fr 1fr; gap: 10px; }
  .links { grid-template-columns: 1fr; }
  .restore-panel, .trash-settings, .backup-row { align-items: stretch; flex-direction: column; }
}
@media (max-width: 440px) { .gallery { grid-template-columns: 1fr; } }