/* ============================================================
   FileGive — Blue-Black Tech Theme
   ============================================================ */
:root {
  --bg-deep:    #050d1a;
  --bg-card:    #0a1628;
  --bg-panel:   #0d1f3c;
  --accent:     #00b4d8;
  --accent2:    #0077b6;
  --accent-glow:#00d4ff;
  --text:       #cde8ff;
  --text-dim:   #6b8fb5;
  --border:     #1a3a5c;
  --danger:     #e63946;
  --success:    #06d6a0;
  --warning:    #ffd166;
  --radius:     10px;
  --shadow:     0 4px 32px rgba(0,180,216,.12);
}

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

body {
  font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
  background: var(--bg-deep);
  color: var(--text);
  min-height: 100vh;
  font-size: 15px;
}

/* ── Scrollbar ───────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--accent2); border-radius: 3px; }

/* ── Topbar ──────────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  height: 64px;
  background: linear-gradient(90deg, #020c1b 0%, #0a1e3a 100%);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 2px 20px rgba(0,180,216,.15);
}

.topbar-logo {
  display: flex; align-items: center; gap: 12px;
  font-size: 22px; font-weight: 700; letter-spacing: 1px;
  color: var(--accent-glow);
  text-shadow: 0 0 16px rgba(0,212,255,.5);
}
.topbar-logo span { color: var(--text); font-weight: 300; }

.topbar-right {
  display: flex; align-items: center; gap: 16px;
}

.status-badge {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 13px; font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all .2s;
}
.status-badge.running {
  background: rgba(6,214,160,.15);
  color: var(--success);
  border: 1px solid rgba(6,214,160,.4);
}
.status-badge.stopped {
  background: rgba(230,57,70,.15);
  color: var(--danger);
  border: 1px solid rgba(230,57,70,.4);
}
.status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  animation: pulse 2s infinite;
}
.running .status-dot { background: var(--success); }
.stopped .status-dot { background: var(--danger); animation: none; }

@keyframes pulse {
  0%,100% { opacity: 1; }
  50%      { opacity: .3; }
}

/* ── Buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 20px;
  border-radius: var(--radius);
  font-size: 14px; font-weight: 600;
  cursor: pointer; border: none;
  transition: all .2s;
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  color: #fff;
  box-shadow: 0 0 12px rgba(0,180,216,.3);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 20px rgba(0,212,255,.5);
}
.btn-ghost {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger {
  background: rgba(230,57,70,.15);
  color: var(--danger);
  border: 1px solid rgba(230,57,70,.3);
}
.btn-danger:hover { background: rgba(230,57,70,.3); }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-icon { padding: 7px; border-radius: 8px; }

/* ── Container ───────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 32px 24px; }

/* ── Upload zone ─────────────────────────────────────── */
.upload-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 32px;
  box-shadow: var(--shadow);
}

.drop-zone {
  border: 2px dashed var(--accent2);
  border-radius: 12px;
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: all .25s;
  background: rgba(0,119,182,.05);
  position: relative;
}
.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--accent-glow);
  background: rgba(0,212,255,.08);
  box-shadow: 0 0 30px rgba(0,212,255,.15);
}
.drop-zone .drop-icon {
  font-size: 52px; margin-bottom: 14px; display: block;
  filter: drop-shadow(0 0 12px rgba(0,212,255,.4));
}
.drop-zone h3 { font-size: 18px; color: var(--text); margin-bottom: 6px; }
.drop-zone p { color: var(--text-dim); font-size: 13px; }

.upload-options {
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  gap: 16px; margin-top: 24px;
}
@media(max-width:700px) { .upload-options { grid-template-columns: 1fr; } }

.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: .5px; }
.form-control {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border .2s;
  width: 100%;
}
.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,180,216,.15); }
select.form-control option { background: var(--bg-panel); }

.progress-bar-wrap {
  width: 100%; background: var(--border);
  border-radius: 4px; height: 6px; margin-top: 16px; overflow: hidden;
  display: none;
}
.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent2), var(--accent-glow));
  border-radius: 4px;
  transition: width .1s;
  box-shadow: 0 0 8px rgba(0,212,255,.6);
  width: 0%;
}

.upload-actions { display: flex; justify-content: flex-end; margin-top: 20px; gap: 12px; }

/* ── File list ───────────────────────────────────────── */
.section-title {
  font-size: 18px; font-weight: 700; color: var(--text);
  margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
}
.section-title::after {
  content: '';
  flex: 1; height: 1px;
  background: linear-gradient(90deg, var(--border), transparent);
}

.file-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 16px;
  transition: border-color .2s, box-shadow .2s;
}
.file-card:hover {
  border-color: var(--accent2);
  box-shadow: 0 4px 20px rgba(0,180,216,.1);
}
.file-card.expired { opacity: .55; border-color: var(--danger); }

.file-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
}
.file-name {
  font-size: 16px; font-weight: 600; color: var(--accent-glow);
  word-break: break-all;
}
.file-meta {
  display: flex; flex-wrap: wrap; gap: 12px;
  margin-top: 10px;
}
.meta-tag {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 12px; color: var(--text-dim);
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px 10px;
}
.meta-tag.warn { color: var(--warning); border-color: rgba(255,209,102,.3); }
.meta-tag.expired-tag { color: var(--danger); border-color: rgba(230,57,70,.3); }
.meta-tag.ok { color: var(--success); border-color: rgba(6,214,160,.3); }

.file-actions {
  display: flex; gap: 8px; flex-wrap: wrap; align-items: center;
  margin-top: 14px;
}

.msg-display {
  font-size: 13px; color: var(--text-dim);
  background: rgba(0,119,182,.08);
  border-left: 3px solid var(--accent2);
  padding: 8px 12px; border-radius: 0 6px 6px 0;
  margin-top: 10px;
  white-space: pre-wrap;
  line-height: 1.6;
  max-height: calc(1.6em * 3 + 16px);
  overflow-y: auto;
}

/* ── Download logs collapse ──────────────────────────── */
.logs-panel {
  margin-top: 14px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  display: none;
}
.logs-panel.open { display: block; }
.logs-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.logs-table th {
  text-align: left; padding: 8px 12px;
  background: rgba(0,119,182,.15);
  color: var(--text-dim); font-weight: 600;
  border-bottom: 1px solid var(--border);
}
.logs-table td { padding: 8px 12px; border-bottom: 1px solid rgba(26,58,92,.5); }
.logs-table tr:last-child td { border-bottom: none; }

/* ── Modal ───────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(2,12,27,.85);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity .2s;
}
.modal-overlay.show { opacity: 1; pointer-events: all; }
.modal {
  background: var(--bg-card);
  border: 1px solid var(--accent2);
  border-radius: 16px;
  padding: 32px;
  width: 100%; max-width: 460px;
  box-shadow: 0 0 50px rgba(0,180,216,.25);
  transform: translateY(20px);
  transition: transform .25s;
}
.modal-overlay.show .modal { transform: translateY(0); }
.modal h3 { margin-bottom: 20px; color: var(--accent-glow); font-size: 18px; }
.modal .form-group { margin-bottom: 14px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }

/* ── Toast ───────────────────────────────────────────── */
#toast {
  position: fixed; bottom: 32px; right: 32px; z-index: 999;
  background: var(--bg-panel);
  border: 1px solid var(--accent);
  border-radius: 10px;
  padding: 14px 20px;
  color: var(--text);
  font-size: 14px;
  box-shadow: 0 4px 20px rgba(0,180,216,.3);
  opacity: 0; pointer-events: none;
  transition: opacity .3s;
  max-width: 320px;
}
#toast.show { opacity: 1; }
#toast.error { border-color: var(--danger); box-shadow: 0 4px 20px rgba(230,57,70,.3); }

/* ── Share page ──────────────────────────────────────── */
.share-wrap {
  min-height: 100vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 24px;
}
.share-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 48px 40px;
  max-width: 520px;
  width: 100%;
  text-align: center;
  box-shadow: 0 0 60px rgba(0,180,216,.1);
}
.share-icon { font-size: 64px; margin-bottom: 20px; display: block; }
.share-card h2 { font-size: 22px; color: var(--accent-glow); margin-bottom: 8px; }
.share-meta-list { text-align: left; margin: 24px 0; }
.share-meta-list .meta-row {
  display: flex; justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.share-meta-list .meta-row:last-child { border-bottom: none; }
.share-meta-list .meta-key { color: var(--text-dim); }
.share-meta-list .meta-val { color: var(--text); font-weight: 600; word-break: break-all; }
.unlock-form { margin-top: 24px; }

/* ── Language toggle ─────────────────────────────────── */
.lang-btn {
  background: rgba(0,119,182,.15);
  border: 1px solid var(--accent2);
  border-radius: 8px;
  color: var(--accent);
  padding: 5px 14px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: all .2s;
}
.lang-btn:hover { background: rgba(0,180,216,.25); }

/* ── Responsive ──────────────────────────────────────── */
@media(max-width:600px) {
  .topbar { padding: 0 16px; }
  .container { padding: 16px 12px; }
  .share-card { padding: 32px 20px; }
}

/* ── Selected file list ──────────────────────────────── */
.selected-files { margin-top: 16px; }
.selected-file-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 12px;
  background: rgba(0,119,182,.08);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 6px;
  font-size: 13px;
}
.selected-file-item .fname { color: var(--accent); word-break: break-all; flex: 1; }
.selected-file-item .fsize { color: var(--text-dim); margin: 0 10px; white-space: nowrap; }
.remove-file { cursor: pointer; color: var(--danger); font-size: 16px; flex-shrink: 0; }

/* ── Glow divider ────────────────────────────────────── */
.glow-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  margin: 32px 0;
  box-shadow: 0 0 10px rgba(0,180,216,.5);
}