/* ============================================================
   CNL-Server — Main Stylesheet
   ============================================================ */

:root {
  /* Paleta clara */
  --bg:           #F5F4F0;
  --surface:      #FFFFFF;
  --border:       #E5E3DC;
  --text:         #1A1A1A;
  --text-muted:   #6B6860;
  --accent:       #2563EB;
  --accent-hover: #1D4ED8;
  --accent-light: #EFF6FF;
  --success:      #16A34A;
  --danger:       #DC2626;
  --danger-light: #FEF2F2;
  --warning:      #D97706;

  --radius:       8px;
  --radius-lg:    12px;
  --shadow:       0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md:    0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.05);
  --transition:   150ms ease;

  --header-h:     60px;
  --sidebar-w:    220px;
}

[data-theme="dark"] {
  --bg:           #141414;
  --surface:      #1E1E1E;
  --border:       #2E2E2E;
  --text:         #F0EFE9;
  --text-muted:   #9B9890;
  --accent:       #3B82F6;
  --accent-hover: #60A5FA;
  --accent-light: #1E3A5F;
  --success:      #22C55E;
  --danger:       #EF4444;
  --danger-light: #2D1B1B;
  --warning:      #F59E0B;
  --shadow:       0 1px 3px rgba(0,0,0,.3);
  --shadow-md:    0 4px 6px rgba(0,0,0,.4);
}

/* ── Reset ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

button { cursor: pointer; font-family: inherit; }
input, button, select { font-size: 0.9375rem; }

/* ── Header ───────────────────────────────────────────────── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 1.25rem;
  gap: 1rem;
  box-shadow: var(--shadow);
}

.header-brand {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  min-width: 0;
}

.header-brand .brand-logo {
  height: 38px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  display: block;
}

.header-brand .brand-name {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  white-space: nowrap;
}

.header-brand .brand-domain {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header-search {
  flex: 1;
  max-width: 420px;
  margin: 0 auto;
  position: relative;
}

.header-search input {
  width: 100%;
  padding: 0.45rem 0.9rem 0.45rem 2.25rem;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.header-search input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}

.header-search .search-icon {
  position: absolute;
  left: 0.7rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

.btn-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), color var(--transition);
}

.btn-icon:hover {
  background: var(--border);
  color: var(--text);
}

.avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
}

/* ── Stats bar ────────────────────────────────────────────── */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  padding: 1rem 1.25rem;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  box-shadow: var(--shadow);
}

.stat-card .stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.25rem;
}

.stat-card .stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
}

.stat-card .stat-value span {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-muted);
}

/* ── Main layout ──────────────────────────────────────────── */
.main {
  padding: 0 1.25rem 2rem;
}

/* ── Toolbar ──────────────────────────────────────────────── */
.toolbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.875rem;
  flex: 1;
  min-width: 0;
  flex-wrap: wrap;
}

.breadcrumb-item {
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.2rem 0.3rem;
  border-radius: 4px;
  white-space: nowrap;
}

.breadcrumb-item:hover { color: var(--accent); background: var(--accent-light); }
.breadcrumb-item.active { color: var(--text); font-weight: 600; cursor: default; }
.breadcrumb-item.active:hover { background: transparent; }

.breadcrumb-sep { color: var(--text-muted); }

.toolbar-actions { display: flex; align-items: center; gap: 0.5rem; margin-left: auto; }

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.875rem;
  font-weight: 500;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.btn:hover { background: var(--bg); border-color: var(--text-muted); }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}

.btn-danger:hover { opacity: 0.9; }

/* View toggle */
.view-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}

.view-toggle button {
  padding: 0.4rem 0.6rem;
  border: none;
  background: transparent;
  color: var(--text-muted);
  transition: background var(--transition), color var(--transition);
}

.view-toggle button.active {
  background: var(--accent);
  color: #fff;
}

/* ── File list (table view) ───────────────────────────────── */
.file-table {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: visible;
  box-shadow: var(--shadow);
}

.file-table-header {
  display: grid;
  grid-template-columns: 1fr 100px 130px 80px;
  padding: 0.6rem 1rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.file-table-header {
  display: grid;
  grid-template-columns: 1fr 100px 130px 80px;
  padding: 0.6rem 1rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.file-row {
  display: grid;
  grid-template-columns: 1fr 100px 130px 80px;
  align-items: center;
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
  cursor: pointer;
}

.file-row:last-child { border-bottom: none; }
.file-row:hover { background: var(--accent-light); }
.file-row.selected { background: var(--accent-light); }

.file-name {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-width: 0;
}

.file-name .file-check {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  cursor: pointer;
  accent-color: var(--accent);
}

.file-name span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.9375rem;
}

.file-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.file-icon.folder { color: var(--warning); }
.file-icon.folder-red    { color: #DC2626; }
.file-icon.folder-orange { color: #D97706; }
.file-icon.folder-yellow { color: #CA8A04; }
.file-icon.folder-green  { color: #16A34A; }
.file-icon.folder-blue   { color: #2563EB; }
.file-icon.folder-purple { color: #7C3AED; }
.file-icon.folder-pink   { color: #DB2777; }
.file-icon.image  { color: var(--success); }
.file-icon.doc    { color: #2563EB; }
.file-icon.pdf    { color: var(--danger); }
.file-icon.zip    { color: var(--text-muted); }

.file-size, .file-modified {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.file-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.25rem;
  opacity: 0;
  transition: opacity var(--transition);
}

.file-row:hover .file-actions { opacity: 1; }

/* ── File grid ────────────────────────────────────────────── */
.file-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.75rem;
}

.file-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem 0.75rem 0.75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.file-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.file-card .card-thumb {
  width: 80px;
  height: 80px;
  border-radius: var(--radius);
  object-fit: cover;
  background: var(--bg);
}

.file-card .card-icon {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  background: var(--bg);
  border-radius: var(--radius);
}

.file-card .card-name {
  font-size: 0.8rem;
  text-align: center;
  word-break: break-word;
  color: var(--text);
  line-height: 1.3;
  max-height: 2.6em;
  overflow: hidden;
}

.file-card .card-menu {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  opacity: 0;
  transition: opacity var(--transition);
}

.file-card:hover .card-menu { opacity: 1; }

/* ── Status bar ───────────────────────────────────────────── */
.status-bar {
  padding: 0.6rem 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: right;
}

/* ── Dropdown menu ────────────────────────────────────────── */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  position: fixed;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  min-width: 180px;
  z-index: 200;
  overflow: hidden;
  display: none;
}

.dropdown-menu.open { display: block; }

.dropdown-menu button {
  width: 100%;
  padding: 0.6rem 1rem;
  border: none;
  background: transparent;
  color: var(--text);
  text-align: left;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: background var(--transition);
}

.dropdown-menu button:hover { background: var(--bg); }
.dropdown-menu button.danger { color: var(--danger); }
.dropdown-menu button.danger:hover { background: var(--danger-light); }
.dropdown-menu .divider { height: 1px; background: var(--border); margin: 0.25rem 0; }

/* ── Modal ────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0,0,0,.2);
  width: 100%;
  max-width: 480px;
  transform: translateY(12px);
  transition: transform 200ms ease;
}

.modal-overlay.open .modal { transform: translateY(0); }

.modal-header {
  padding: 1.25rem 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 { font-size: 1rem; font-weight: 600; }

.modal-body { padding: 1rem 1.5rem; }
.modal-footer {
  padding: 0 1.5rem 1.25rem;
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

/* ── Form elements ────────────────────────────────────────── */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.875rem; font-weight: 500; margin-bottom: 0.35rem; }

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}

/* Toggle switch */
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
}

.toggle-row:last-child { border-bottom: none; }
.toggle-row label { font-size: 0.875rem; }

.toggle {
  position: relative;
  width: 40px;
  height: 22px;
}

.toggle input { opacity: 0; width: 0; height: 0; }

.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--border);
  border-radius: 22px;
  cursor: pointer;
  transition: background var(--transition);
}

.toggle-slider::before {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  left: 3px;
  top: 3px;
  background: #fff;
  border-radius: 50%;
  transition: transform var(--transition);
}

.toggle input:checked + .toggle-slider { background: var(--accent); }
.toggle input:checked + .toggle-slider::before { transform: translateX(18px); }

/* ── Upload drop zone ─────────────────────────────────────── */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  color: var(--text-muted);
  transition: border-color var(--transition), background var(--transition);
  cursor: pointer;
}

.drop-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-light);
  color: var(--accent);
}

.drop-zone p { font-size: 0.9rem; margin-top: 0.5rem; }

/* Upload progress */
.upload-progress {
  margin-top: 1rem;
}

.progress-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
}

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

.progress-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 200ms ease;
}

/* ── Preview modal ────────────────────────────────────────── */
.preview-modal .modal {
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.preview-modal .modal-body {
  flex: 1;
  overflow: hidden;
  padding: 0;
}

.preview-modal iframe,
.preview-modal img {
  width: 100%;
  height: 100%;
  min-height: 60vh;
  border: none;
  display: block;
}

.preview-modal img {
  object-fit: contain;
  background: #000;
}

/* ── Toast notifications ──────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  animation: toast-in 200ms ease;
  max-width: 320px;
}

.toast.success { border-left: 3px solid var(--success); }
.toast.error   { border-left: 3px solid var(--danger); }
.toast.info    { border-left: 3px solid var(--accent); }

@keyframes toast-in {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ── Admin panel ──────────────────────────────────────────── */
.admin-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

.admin-section-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.admin-section-header h3 { font-size: 0.9375rem; font-weight: 600; }

.user-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border);
  gap: 1rem;
}

.user-row:last-child { border-bottom: none; }

.user-info .user-name { font-weight: 600; font-size: 0.9rem; }
.user-info .user-meta { font-size: 0.8rem; color: var(--text-muted); }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-admin   { background: var(--accent-light); color: var(--accent); }
.badge-active  { background: #DCFCE7; color: var(--success); }
.badge-inactive{ background: var(--danger-light); color: var(--danger); }

[data-theme="dark"] .badge-active { background: #14532D; }

/* ── Login page ───────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  padding: 1rem;
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow-md);
}

.login-card .login-logo {
  text-align: center;
  margin-bottom: 1.5rem;
}

.login-card .login-logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
}

.login-card .login-logo p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.login-error {
  background: var(--danger-light);
  color: var(--danger);
  border-radius: var(--radius);
  padding: 0.6rem 0.9rem;
  font-size: 0.875rem;
  margin-bottom: 1rem;
  display: none;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  .stats-bar {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
  }

  .file-table-header {
    grid-template-columns: 1fr 80px;
  }

  .file-table-header .col-size,
  .file-table-header .col-modified {
    display: none;
  }

  .file-row {
    grid-template-columns: 1fr 80px;
  }

  .file-row .file-size,
  .file-row .file-modified {
    display: none;
  }

  .file-actions { opacity: 1; }

  .header-search {
    display: none;
  }

  .header-search.mobile-open {
    display: block;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    padding: 0.75rem 1rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    max-width: 100%;
    margin: 0;
  }

  .file-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }

  .toast-container {
    bottom: 1rem;
    right: 1rem;
    left: 1rem;
  }

  .toast { max-width: 100%; }

  .modal { max-width: 100%; }
}

@media (max-width: 480px) {
  .toolbar-actions .btn span { display: none; }
  .main { padding: 0 0.75rem 2rem; }
  .stats-bar { padding: 0.75rem; }
}

/* ── Scrollbar ────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Utilities ────────────────────────────────────────────── */
.hidden { display: none !important; }

.color-picker {
  display: flex;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  flex-wrap: wrap;
}

.color-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color var(--transition), transform var(--transition);
}

.color-dot:hover { transform: scale(1.2); }
.color-dot.active { border-color: var(--text); }
.color-dot[data-color="default"] { background: var(--warning); }
.color-dot[data-color="red"]     { background: #DC2626; }
.color-dot[data-color="orange"]  { background: #D97706; }
.color-dot[data-color="yellow"]  { background: #CA8A04; }
.color-dot[data-color="green"]   { background: #16A34A; }
.color-dot[data-color="blue"]    { background: #2563EB; }
.color-dot[data-color="purple"]  { background: #7C3AED; }
.color-dot[data-color="pink"]    { background: #DB2777; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.text-muted { color: var(--text-muted); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }