:root {
  --bg: #0e0e1a;
  --bg-soft: #14141f;
  --bg-card: #181826;
  --bg-elev: #1f1f30;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e9e9f2;
  --muted: rgba(233, 233, 242, 0.45);
  --muted-2: rgba(233, 233, 242, 0.28);
  --primary: #8b5cf6;
  --primary-rgb: 139, 92, 246;
  --danger: #ff5470;
  --ok: #3ddc84;
  --radius: 14px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: radial-gradient(1200px 600px at 70% -10%, rgba(var(--primary-rgb), 0.12), transparent 60%), var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}
.hidden { display: none !important; }
.link { color: var(--primary); }

/* Brand */
.brand { display: flex; align-items: center; gap: 8px; font-size: 16px; font-weight: 500; letter-spacing: .2px; }
.brand b { font-weight: 800; }
.brandDot { width: 10px; height: 10px; border-radius: 50%; background: var(--primary); box-shadow: 0 0 12px rgba(var(--primary-rgb), .8); }

/* Buttons */
.btn {
  border: 1px solid var(--border); background: var(--bg-elev); color: var(--text);
  padding: 9px 14px; border-radius: 10px; font-size: 13px; font-weight: 600;
  cursor: pointer; font-family: var(--font); transition: all .15s; white-space: nowrap;
}
.btn:hover { border-color: rgba(255,255,255,.18); }
.btnPrimary { background: var(--primary); border-color: var(--primary); }
.btnPrimary:hover { filter: brightness(1.08); }
.btnGhost { background: transparent; }
.btnBlock { width: 100%; }

/* Login */
.login { min-height: 100%; display: grid; place-items: center; padding: 24px; }
.loginCard {
  width: 100%; max-width: 360px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 18px; padding: 28px; display: flex; flex-direction: column; gap: 14px;
  box-shadow: 0 24px 60px rgba(0,0,0,.45);
}
.loginCard .brand { font-size: 20px; }
.loginSub { margin: 0; color: var(--muted); font-size: 13px; }
.loginCard input {
  background: var(--bg-soft); border: 1px solid var(--border); color: var(--text);
  border-radius: 10px; padding: 12px 14px; font-size: 14px; font-family: var(--font); outline: none;
}
.loginCard input:focus { border-color: var(--primary); }
.loginError { color: var(--danger); font-size: 12.5px; min-height: 16px; }

/* App layout */
.app { min-height: 100%; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: rgba(14,14,26,.8); backdrop-filter: blur(10px); z-index: 5;
}
.topRight { display: flex; align-items: center; gap: 14px; }
.stat { color: var(--muted); font-size: 13px; }
.content { padding: 24px; max-width: 1200px; width: 100%; margin: 0 auto; }

/* Dropzone */
.dropzone {
  display: block; border: 1.5px dashed rgba(255,255,255,.16); border-radius: var(--radius);
  background: var(--bg-soft); padding: 28px; cursor: pointer; transition: all .15s; position: relative; overflow: hidden;
}
.dropzone:hover, .dropzone.drag { border-color: var(--primary); background: rgba(var(--primary-rgb), .06); }
.dzInner { display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center; }
.dzIcon { font-size: 26px; color: var(--primary); }
.dzTitle { font-size: 14px; font-weight: 600; }
.dzHint { font-size: 12.5px; color: var(--muted); }
.progress { position: absolute; left: 0; right: 0; bottom: 0; height: 4px; background: rgba(255,255,255,.08); }
.progressBar { height: 100%; width: 0; background: var(--primary); transition: width .15s; }

/* Toolbar */
.toolbar { display: flex; gap: 10px; margin: 18px 0 14px; }
.search {
  flex: 1; background: var(--bg-soft); border: 1px solid var(--border); color: var(--text);
  border-radius: 10px; padding: 10px 14px; font-size: 13.5px; font-family: var(--font); outline: none;
}
.search:focus { border-color: var(--primary); }

/* Breadcrumb */
.breadcrumb { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-top: 18px; font-size: 13px; }
.crumb { color: var(--primary); cursor: pointer; font-weight: 600; }
.crumb:hover { text-decoration: underline; }
.crumbSep { color: var(--muted-2); }

/* Folder card */
.folderCard .thumb { background: rgba(var(--primary-rgb), 0.07); }
.folderThumb { font-size: 38px; cursor: pointer; line-height: 1; }

/* Grid */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 14px; }
.card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column; transition: border-color .15s;
}
.card:hover { border-color: rgba(255,255,255,.16); }
.thumb {
  height: 120px; background: var(--bg-soft); display: grid; place-items: center;
  overflow: hidden; position: relative;
}
.thumb img, .thumb video { width: 100%; height: 100%; object-fit: cover; }
.thumbIcon { font-size: 13px; font-weight: 800; letter-spacing: .5px; color: var(--muted); text-transform: uppercase; }
.cardBody { padding: 10px 12px; display: flex; flex-direction: column; gap: 8px; }
.fname { font-size: 12.5px; font-weight: 600; word-break: break-all; line-height: 1.3; }
.fmeta { font-size: 11px; color: var(--muted-2); }
.cardActions { display: flex; gap: 6px; margin-top: 2px; }
.iconBtn {
  flex: 1; border: 1px solid var(--border); background: var(--bg-elev); color: var(--text);
  border-radius: 8px; padding: 7px; font-size: 11.5px; font-weight: 600; cursor: pointer; transition: all .15s;
}
.iconBtn:hover { border-color: rgba(255,255,255,.2); }
.iconBtn.danger:hover { border-color: var(--danger); color: var(--danger); }

.empty { text-align: center; color: var(--muted); padding: 48px; font-size: 14px; }

/* Toast */
.toast {
  position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--bg-elev); border: 1px solid var(--border); color: var(--text);
  padding: 11px 18px; border-radius: 12px; font-size: 13px; font-weight: 600;
  opacity: 0; pointer-events: none; transition: all .2s; box-shadow: 0 16px 40px rgba(0,0,0,.5); z-index: 50;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.ok { border-color: rgba(61,220,132,.5); }
.toast.err { border-color: rgba(255,84,112,.5); }