/* ShareBox — Frazil-branded theme.
   Palette derived from the Frazil logo:
     #0059a9  primary brand blue (logo body)
     #1d3050  deep navy (box icon, surface base)
   Typography: Lato across the board.
   Aesthetic: flat icons, clean panels, Frazil-blue accents on navy. */

@import url('https://fonts.googleapis.com/css2?family=Lato:wght@300;400;700;900&display=swap');

:root {
  /* Navy / surface palette (anchored on the box-icon navy) */
  --bg:        #0e1a2e;
  --surface:   #14233d;
  --surface-2: #1d3050;
  --surface-3: #263d63;
  --border:    #2a4068;
  --border-strong: #3a567f;

  --text:      #eef3fa;
  --text-muted:#9caec7;
  --text-dim:  #6a7d99;

  /* Frazil brand blue */
  --accent:    #0059a9;
  --accent-hi: #2576c7;
  --accent-lo: #003e7a;
  --accent-soft: rgba(37, 118, 199, 0.18);

  /* Status (kept neutral — no jarring colors against the navy/blue base) */
  --success:   #4ec07a;
  --warn:      #e8b870;
  --danger:    #e36363;
  --danger-soft: rgba(227, 99, 99, 0.14);

  /* Typography — Lato everywhere */
  --font-body: 'Lato', system-ui, -apple-system, sans-serif;
  --font-display: 'Lato', system-ui, -apple-system, sans-serif;
  --font-mono: 'Lato', ui-monospace, monospace;

  --radius-sm: 4px;
  --radius:    6px;
  --radius-lg: 10px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow:    0 4px 12px rgba(0,0,0,0.35);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.45);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-hi); text-decoration: none; }
a:hover { color: #4a90d8; }

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

/* ============ Layout ============ */
.app {
  display: grid;
  grid-template-columns: 280px 1fr 0;
  grid-template-rows: 56px 1fr;
  grid-template-areas:
    "topbar topbar topbar"
    "sidebar main preview";
  height: 100vh;
  overflow: hidden;
  transition: grid-template-columns 0.25s ease;
}
.app.preview-open {
  grid-template-columns: 280px 1fr 480px;
}

.topbar {
  grid-area: topbar;
  display: flex;
  align-items: center;
  padding: 0 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  gap: 16px;
  z-index: 10;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--text);
}
.brand-logo {
  height: 32px;
  width: auto;
  display: block;
}
.brand-divider {
  width: 1px;
  height: 22px;
  background: var(--border-strong);
}
.brand-app {
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.search-wrap {
  flex: 1;
  max-width: 520px;
  position: relative;
}
.search-input {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px 8px 36px;
  font-size: 13px;
  color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.search-input::placeholder { color: var(--text-dim); }
.search-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.search-icon {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  pointer-events: none;
  width: 16px;
  height: 16px;
}
.search-results {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  max-height: 400px;
  overflow-y: auto;
  z-index: 100;
  display: none;
}
.search-results.show { display: block; }
.search-result {
  padding: 10px 12px;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.search-result:hover { background: var(--surface-3); }
.search-result:last-child { border-bottom: none; }

.user-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 12px 4px 4px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
}
.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 12px;
}
.user-name { font-size: 13px; color: var(--text); font-weight: 700; }
.user-role {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-hi);
  font-weight: 700;
}

.icon-btn {
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 6px 8px;
  cursor: pointer;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.icon-btn:hover { background: var(--surface-3); color: var(--text); }
.icon-btn svg { width: 16px; height: 16px; }

/* ============ Sidebar ============ */
.sidebar {
  grid-area: sidebar;
  background: var(--surface);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 20px 0;
}
.sidebar-section { padding: 0 16px 8px; }
.sidebar-label {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 12px 8px 6px;
  font-weight: 700;
}
.tree-node {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  color: var(--text);
  user-select: none;
  font-weight: 400;
}
.tree-node:hover { background: var(--surface-2); }
.tree-node.active {
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}
.tree-node.active .scope-icon { color: #fff; }
.scope-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--text-muted);
}

/* ============ Main ============ */
.main {
  grid-area: main;
  overflow-y: auto;
  padding: 20px 28px;
  background: var(--bg);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 18px;
}
.breadcrumb-sep { color: var(--text-dim); }
.breadcrumb-item { cursor: pointer; }
.breadcrumb-item:hover { color: var(--text); }
.breadcrumb-item.current { color: var(--text); font-weight: 700; }

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.toolbar-left h1 {
  font-size: 24px;
  font-weight: 900;
  margin: 0 0 2px 0;
  letter-spacing: -0.01em;
  color: var(--text);
}
.toolbar-left .meta {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 400;
}
.toolbar-right { display: flex; gap: 8px; }

.btn {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 7px 14px;
  font-size: 13px;
  cursor: pointer;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s;
  font-weight: 700;
}
.btn:hover { background: var(--surface-3); border-color: var(--border-strong); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn svg { width: 14px; height: 14px; }
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hi);
  border-color: var(--accent-hi);
  color: #fff;
}
.btn-danger {
  color: var(--danger);
  border-color: var(--border);
}
.btn-danger:hover {
  background: var(--danger-soft);
  border-color: var(--danger);
}
.btn-ghost {
  background: transparent;
  border-color: transparent;
}
.btn-ghost:hover { background: var(--surface-2); }

/* ============ File table ============ */
.filetable {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.filetable th {
  text-align: left;
  padding: 8px 12px;
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
}
.filetable td {
  padding: 11px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.filetable tbody tr {
  cursor: pointer;
  transition: background 0.1s;
}
.filetable tbody tr:hover { background: var(--surface-2); }
.filetable tbody tr.selected {
  background: var(--accent-soft);
}
.filetable .name-cell {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}
.filetable .file-icon,
.filetable .folder-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}
.filetable .file-icon { color: var(--accent-hi); }
.filetable .folder-icon { color: var(--text-muted); }
.filetable td.mono {
  color: var(--text-muted);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}
.filetable .actions-cell {
  text-align: right;
  white-space: nowrap;
}

/* Dropzone */
.dropzone {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  color: var(--text-muted);
  margin-top: 24px;
  transition: all 0.2s;
  cursor: pointer;
}
.dropzone:hover, .dropzone.drag-over {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-hi);
}

/* ============ Preview pane ============ */
.preview {
  grid-area: preview;
  background: var(--surface);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  display: none;
}
.app.preview-open .preview { display: block; }
.preview-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.preview-title {
  font-size: 16px;
  font-weight: 900;
  margin: 0 0 4px 0;
  word-break: break-all;
  color: var(--text);
  letter-spacing: -0.01em;
}
.preview-sub {
  font-size: 11px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}
.preview-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.preview-tab {
  flex: 1;
  padding: 12px;
  text-align: center;
  cursor: pointer;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
}
.preview-tab.active {
  color: var(--accent-hi);
  border-bottom-color: var(--accent);
}
.preview-body { padding: 20px; }

.detail-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.detail-row:last-child { border: none; }
.detail-key {
  color: var(--text-dim);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding-top: 2px;
  font-weight: 700;
}
.detail-val { color: var(--text); word-break: break-all; }

/* Audit log entries */
.audit-entry {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
}
.audit-entry .head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
}
.audit-entry .actor { color: var(--text); font-weight: 700; }
.audit-entry .ts {
  font-size: 11px;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}
.audit-entry .event-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--surface-3);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: var(--text-muted);
  margin-right: 8px;
}
.audit-entry .event-tag.viewed { color: var(--accent-hi); background: var(--accent-soft); }
.audit-entry .event-tag.downloaded { color: var(--success); background: rgba(78, 192, 122, 0.14); }
.audit-entry .event-tag.shared { color: var(--accent-hi); background: var(--accent-soft); }
.audit-entry .detail {
  font-size: 11px;
  color: var(--text-muted);
}

/* Share list item */
.share-item {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  margin-bottom: 10px;
  font-size: 12px;
}
.share-item.expired { opacity: 0.55; }
.share-item .share-url {
  display: flex;
  gap: 6px;
  align-items: center;
  margin-bottom: 8px;
}
.share-item .share-url input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 5px 8px;
  font-size: 11px;
  color: var(--text);
}
.share-item .share-meta {
  display: flex;
  gap: 12px;
  color: var(--text-muted);
  font-size: 11px;
  flex-wrap: wrap;
  align-items: center;
}
.share-item .share-meta .pill {
  padding: 1px 7px;
  border-radius: 999px;
  background: var(--surface-3);
  font-weight: 700;
}
.share-item .share-meta .pill.warn { background: rgba(232, 184, 112, 0.14); color: var(--warn); }
.share-item .share-meta .pill.danger { background: var(--danger-soft); color: var(--danger); }
.share-item .share-meta .pill.ok { background: rgba(78, 192, 122, 0.14); color: var(--success); }

/* ============ Modal ============ */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(8, 14, 24, 0.7);
  backdrop-filter: blur(2px);
  display: none;
  z-index: 1000;
  align-items: center;
  justify-content: center;
}
.modal-backdrop.show { display: flex; }
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 480px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
}
.modal-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-title {
  font-size: 18px;
  font-weight: 900;
  margin: 0;
  letter-spacing: -0.01em;
}
.modal-body { padding: 20px; }
.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.field { margin-bottom: 14px; }
.field label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  font-weight: 700;
  margin-bottom: 6px;
}
.field input, .field select, .field textarea {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
  color: var(--text);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field-hint {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 4px;
}

/* ============ Login page ============ */
.auth-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 20% 20%, rgba(37, 118, 199, 0.10), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(0, 89, 169, 0.08), transparent 50%),
    var(--bg);
}
.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow-lg);
}
.auth-logo {
  display: flex;
  justify-content: center;
  margin-bottom: 14px;
}
.auth-logo img {
  max-width: 200px;
  width: 100%;
  height: auto;
}
.auth-app {
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.auth-tagline {
  text-align: center;
  color: var(--text-dim);
  font-size: 12px;
  margin-bottom: 28px;
  letter-spacing: 0.04em;
}
.auth-error {
  background: var(--danger-soft);
  border: 1px solid var(--danger);
  color: var(--danger);
  padding: 8px 12px;
  border-radius: var(--radius);
  font-size: 12px;
  margin-bottom: 16px;
  display: none;
}
.auth-error.show { display: block; }

/* ============ Public share page ============ */
.share-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 40px 20px;
  background:
    radial-gradient(circle at 20% 20%, rgba(37, 118, 199, 0.10), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(0, 89, 169, 0.08), transparent 50%),
    var(--bg);
}
.share-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  max-width: 480px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow-lg);
}
.share-card .share-logo {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}
.share-card .share-logo img {
  max-width: 160px;
  height: auto;
}
.share-card .file-glyph {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: var(--accent);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  color: #fff;
}
.share-card .file-glyph svg { width: 28px; height: 28px; }
.share-card h2 {
  font-size: 20px;
  font-weight: 900;
  margin: 0 0 6px;
  word-break: break-all;
  letter-spacing: -0.01em;
}
.share-card .meta {
  color: var(--text-muted);
  font-size: 12px;
  margin-bottom: 24px;
  font-variant-numeric: tabular-nums;
}
.invalid-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  display: grid;
  place-items: center;
  background: var(--danger-soft);
  border-radius: 50%;
  color: var(--danger);
}
.invalid-icon svg { width: 28px; height: 28px; }

/* ============ Admin page ============ */
.admin-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}
.admin-tab {
  padding: 10px 20px;
  cursor: pointer;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
}
.admin-tab.active {
  color: var(--accent-hi);
  border-bottom-color: var(--accent);
}

/* ============ Helpers ============ */
.empty {
  padding: 60px 20px;
  text-align: center;
  color: var(--text-muted);
}
.empty .empty-icon {
  margin: 0 auto 8px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  color: var(--text-dim);
}
.empty .empty-icon svg { width: 44px; height: 44px; }
.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--border-strong);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.toast-host {
  position: fixed;
  top: 70px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 700;
  min-width: 240px;
  box-shadow: var(--shadow);
  animation: toast-in 0.2s ease;
}
.toast.error { border-left-color: var(--danger); }
.toast.success { border-left-color: var(--success); }
@keyframes toast-in {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

/* Scrollbar polish (WebKit only) */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: var(--surface-3);
  border-radius: 10px;
  border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover { background: var(--border-strong); }