@import url('https://cdnjs.cloudflare.com/ajax/libs/JetBrains-Mono/2.304/JetBrainsMono-Regular.min.css');

:root {
  --bg: #12151a;
  --panel: #1a1f27;
  --panel-hover: #212733;
  --border: #262c37;
  --text: #e4e7ec;
  --text-dim: #8b93a1;
  --accent: #4fd1c5;
  --accent-dim: #2a5d59;
  --danger: #e5605a;
  --radius: 6px;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 32px 32px;
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh;
}

.hidden { display: none !important; }

/* ---------- Login ---------- */
.screen#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 36px;
  width: 320px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.login-box h1 {
  margin: 0 0 4px 0;
  font-size: 22px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.login-box h1::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s infinite;
  margin-left: auto;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.subtitle {
  margin: 0 0 12px 0;
  color: var(--text-dim);
  font-size: 13px;
}

.login-box input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 11px 12px;
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
}

.login-box input:focus {
  outline: none;
  border-color: var(--accent);
}

.login-box button {
  margin-top: 8px;
  background: var(--accent);
  color: #0a1210;
  border: none;
  border-radius: var(--radius);
  padding: 11px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: opacity 0.15s;
}

.login-box button:hover { opacity: 0.85; }

.error {
  color: var(--danger);
  font-size: 13px;
  margin: 0;
  min-height: 16px;
}

/* ---------- App shell ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  border-bottom: 1px solid var(--border);
  background: rgba(18, 21, 26, 0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar h1 {
  font-size: 17px;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar h1::after {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
}

.topbar-actions { display: flex; gap: 10px; align-items: center; }

button {
  font-family: var(--sans);
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #0a1210;
  border: none;
  border-radius: var(--radius);
  padding: 9px 16px;
  font-weight: 600;
  font-size: 13px;
}
.btn-primary:hover { opacity: 0.85; }

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 9px 16px;
  font-size: 13px;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.btn-icon {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: var(--radius);
  width: 36px;
  height: 36px;
  font-size: 15px;
}
.btn-icon:hover { border-color: var(--danger); color: var(--danger); }

.btn-danger-outline {
  background: transparent;
  border: 1px solid var(--danger);
  color: var(--danger);
  border-radius: var(--radius);
  padding: 9px 16px;
  font-size: 13px;
}
.btn-danger-outline:hover { background: var(--danger); color: #1a0a09; }

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  padding: 14px 28px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
}
.breadcrumb span {
  cursor: pointer;
  color: var(--text-dim);
}
.breadcrumb span:hover { color: var(--accent); }
.breadcrumb span.current { color: var(--text); cursor: default; }
.breadcrumb .sep { margin: 0 6px; color: var(--border); }

/* ---------- Quota ---------- */
.quota-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 28px 16px 28px;
  max-width: 900px;
  margin: 0 auto;
}

.quota-track {
  flex: 1;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.quota-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  transition: width 0.2s ease;
}

.quota-fill.quota-warn { background: #e0a83a; }
.quota-fill.quota-full { background: var(--danger); }

.quota-text {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  white-space: nowrap;
}

/* ---------- File list ---------- */
.file-area {
  padding: 0 28px 60px 28px;
  max-width: 900px;
  margin: 0 auto;
  min-height: 50vh;
}

.file-area.drag-over {
  outline: 2px dashed var(--accent);
  outline-offset: -8px;
  border-radius: var(--radius);
}

.file-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.file-row {
  display: grid;
  grid-template-columns: 24px 1fr auto auto auto;
  align-items: center;
  gap: 14px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  transition: background 0.1s;
}
.file-row:last-child { border-bottom: none; }
.file-row:hover { background: var(--panel-hover); }

.file-icon { font-size: 15px; text-align: center; }

.file-name {
  font-size: 14px;
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.file-name.is-dir:hover { color: var(--accent); }

.file-meta {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  white-space: nowrap;
}

.file-actions {
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity 0.1s;
}
.file-row:hover .file-actions { opacity: 1; }

.file-actions button {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 14px;
  width: 28px;
  height: 28px;
  border-radius: var(--radius);
}
.file-actions button:hover { background: var(--border); color: var(--text); }
.file-actions button.share-btn.active { color: var(--accent); }

.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-dim);
}
.empty-state p { margin: 4px 0; }
.empty-state .hint { font-size: 13px; }

/* ---------- Modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-content {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  width: 420px;
  max-width: 90vw;
}
.modal-content h3 { margin: 0 0 8px 0; }
.modal-content p { color: var(--text-dim); font-size: 13px; margin: 0 0 14px 0; }

.share-link-row { display: flex; gap: 8px; }
.share-link-row input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 9px 10px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 12px;
}
.share-link-row button {
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  padding: 9px 14px;
  font-size: 13px;
  font-weight: 600;
  color: #0a1210;
}

.modal-actions {
  display: flex;
  justify-content: space-between;
  margin-top: 20px;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 13px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
  z-index: 200;
}

@media (max-width: 600px) {
  .topbar { padding: 14px 16px; }
  .quota-bar { padding: 0 16px 14px 16px; }
  .file-area { padding: 0 12px 40px 12px; }
  .file-row { grid-template-columns: 20px 1fr auto; }
  .file-meta:nth-of-type(2) { display: none; }
}