/* ================================================
   nas-cloud — base styles
   Customize colors/fonts here to match your brand
   ================================================ */

:root {
  --color-bg: #0f0f0f;
  --color-surface: #1a1a1a;
  --color-border: #2e2e2e;
  --color-text: #e8e8e8;
  --color-muted: #888;
  --color-accent: #5b8cff;
  --color-accent-hover: #7aa3ff;
  --color-danger: #e05252;
  --color-danger-hover: #f06b6b;
  --color-success: #4caf7d;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Mono', monospace;
  --radius: 8px;
  --radius-sm: 4px;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

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

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

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

/* ---- Layout ---- */

.site-header {
  border-bottom: 1px solid var(--color-border);
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.site-header .logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -.02em;
}

.site-header nav a {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 24px;
}

/* ---- Typography ---- */

h1 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -.02em;
  margin-bottom: 6px;
}

h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.subtitle {
  color: var(--color-muted);
  margin-bottom: 32px;
  font-size: 0.9rem;
}

/* ---- Buttons ---- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: none;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover { background: var(--color-accent-hover); color: #fff; text-decoration: none; }

.btn-ghost {
  background: transparent;
  color: var(--color-muted);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover { color: var(--color-text); border-color: var(--color-muted); text-decoration: none; }

.btn-danger {
  background: transparent;
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
}
.btn-danger:hover { background: var(--color-danger); color: #fff; text-decoration: none; }

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---- Client cards (index) ---- */

.client-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.client-card {
  display: block;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  color: var(--color-text);
  text-decoration: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.client-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: var(--color-text);
}

.client-card .card-icon {
  font-size: 1.6rem;
  margin-bottom: 10px;
}

.client-card .card-name {
  font-weight: 600;
  font-size: 0.95rem;
  word-break: break-word;
}

.empty-state {
  text-align: center;
  color: var(--color-muted);
  padding: 60px 0;
  font-size: 0.9rem;
}

/* ---- File table ---- */

.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

thead {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

th {
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  color: var(--color-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  white-space: nowrap;
  user-select: none;
}

th.sortable { cursor: pointer; }
th.sortable:hover { color: var(--color-text); }
th .sort-icon { margin-left: 4px; opacity: 0.4; }
th.sort-asc .sort-icon, th.sort-desc .sort-icon { opacity: 1; color: var(--color-accent); }

td {
  padding: 11px 16px;
  border-top: 1px solid var(--color-border);
  vertical-align: middle;
}

tr:hover td { background: var(--color-surface); }

td.file-name { font-weight: 500; word-break: break-all; }
td.file-type { font-family: var(--font-mono); font-size: 0.8rem; color: var(--color-muted); }
td.file-size { font-family: var(--font-mono); font-size: 0.82rem; color: var(--color-muted); white-space: nowrap; }
td.file-date { font-size: 0.82rem; color: var(--color-muted); white-space: nowrap; }
td.file-action { width: 80px; }

/* ---- Admin layout ---- */

.admin-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 32px;
  align-items: start;
}

@media (max-width: 680px) {
  .admin-layout { grid-template-columns: 1fr; }
}

.sidebar {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.sidebar-header {
  padding: 14px 16px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--color-muted);
  border-bottom: 1px solid var(--color-border);
  font-weight: 600;
}

.folder-list { list-style: none; }

.folder-list li button {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  border-bottom: 1px solid var(--color-border);
  padding: 11px 16px;
  font-family: inherit;
  font-size: 0.875rem;
  color: var(--color-text);
  cursor: pointer;
  transition: background 0.1s;
  word-break: break-word;
}

.folder-list li button:hover { background: rgba(255,255,255,0.04); }
.folder-list li button.active { background: rgba(91,140,255,0.12); color: var(--color-accent); font-weight: 600; }
.folder-list li:last-child button { border-bottom: none; }

/* ---- Panel (right column in admin) ---- */

.panel {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

/* ---- Forms ---- */

.form-row {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: .04em;
}

input[type="text"],
input[type="password"] {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.875rem;
  padding: 9px 12px;
  width: 100%;
  transition: border-color 0.15s;
}

input[type="text"]:focus,
input[type="password"]:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* ---- Drop zone ---- */

.dropzone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 36px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  position: relative;
}

.dropzone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}

.dropzone:hover,
.dropzone.drag-over {
  border-color: var(--color-accent);
  background: rgba(91,140,255,0.05);
}

.dropzone .dz-icon { font-size: 2rem; margin-bottom: 10px; }
.dropzone .dz-label { font-weight: 500; margin-bottom: 4px; }
.dropzone .dz-sub { font-size: 0.82rem; color: var(--color-muted); }

/* ---- Upload progress ---- */

.upload-list { margin-top: 16px; display: flex; flex-direction: column; gap: 8px; }

.upload-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
}

.upload-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  margin-bottom: 6px;
}

.upload-item-name { font-weight: 500; word-break: break-all; }
.upload-item-status { font-size: 0.78rem; color: var(--color-muted); white-space: nowrap; }
.upload-item-status.ok { color: var(--color-success); }
.upload-item-status.err { color: var(--color-danger); }

.progress-bar-bg {
  height: 4px;
  background: var(--color-border);
  border-radius: 99px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--color-accent);
  border-radius: 99px;
  transition: width 0.2s;
}

/* ---- Login screen ---- */

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
  width: 100%;
  max-width: 380px;
}

.login-card h1 { font-size: 1.3rem; margin-bottom: 4px; }
.login-card .subtitle { margin-bottom: 28px; }

.login-card .field { margin-bottom: 20px; }

/* ---- Alerts / toast ---- */

.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  margin-bottom: 16px;
}
.alert-error { background: rgba(224,82,82,0.12); border: 1px solid var(--color-danger); color: var(--color-danger); }
.alert-success { background: rgba(76,175,125,0.12); border: 1px solid var(--color-success); color: var(--color-success); }

/* ---- Breadcrumb ---- */

.breadcrumb {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--color-muted); }
.breadcrumb a:hover { color: var(--color-text); }
.breadcrumb .sep { opacity: 0.4; }
.breadcrumb .current { color: var(--color-text); font-weight: 500; }

/* ---- Delete button in table ---- */

.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-muted);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  transition: color 0.15s, background 0.15s;
}
.btn-icon:hover { color: var(--color-danger); background: rgba(224,82,82,0.1); }