/* User Portal - Professional Light Theme */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg: #f5f6fa;
  --bg-card: #ffffff;
  --bg-hover: #f7f8fa;
  --bg-input: #ffffff;
  --sidebar-bg: #ffffff;
  --sidebar-border: #e8ecf1;
  --sidebar-hover: #f0f3f8;
  --sidebar-active-bg: #2563eb;
  --sidebar-active-text: #ffffff;
  --sidebar-text: #475569;
  --sidebar-text-hover: #1e293b;
  --border: #e2e8f0;
  --border-light: #f1f3f5;
  --text: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-dim: #94a3b8;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: rgba(37,99,235,.07);
  --danger: #dc2626;
  --danger-light: rgba(220,38,38,.07);
  --success: #16a34a;
  --success-light: rgba(22,163,74,.07);
  --warning: #ca8a04;
  --warning-light: rgba(202,138,4,.07);
  --radius: 8px;
  --radius-lg: 10px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.03);
  --shadow: 0 1px 3px rgba(0,0,0,.05), 0 1px 2px rgba(0,0,0,.03);
  --shadow-md: 0 4px 6px rgba(0,0,0,.04), 0 2px 4px rgba(0,0,0,.02);
  --transition: .15s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', system-ui, -apple-system, sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; font-size: 14px; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; } a:hover { text-decoration: underline; }

/* Layout */
.app { display: flex; min-height: 100vh; }

/* Sidebar - Light */
.sidebar {
  width: 220px; background: var(--sidebar-bg); border-right: 1px solid var(--sidebar-border);
  display: flex; flex-direction: column; position: fixed; top: 0; left: 0; bottom: 0; z-index: 10;
}
.sidebar .logo { padding: 20px 16px 16px; border-bottom: 1px solid var(--sidebar-border); }
.sidebar .logo h1 { font-size: 15px; font-weight: 700; color: var(--text); display: flex; align-items: center; gap: 10px; }
.sidebar .logo h1 .logo-icon {
  width: 30px; height: 30px; background: var(--primary); border-radius: 8px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.sidebar .logo h1 .logo-icon svg { width: 16px; height: 16px; stroke: #fff; fill: none; stroke-width: 2; }
.sidebar .logo span { font-size: 12px; color: var(--text-dim); margin-top: 2px; display: block; padding-left: 40px; }
.sidebar nav { flex: 1; padding: 8px 0; }
.sidebar nav a {
  display: flex; align-items: center; gap: 10px; padding: 7px 12px; margin: 1px 8px;
  border-radius: 7px; color: var(--sidebar-text); font-size: 13px; font-weight: 500;
  transition: all var(--transition); text-decoration: none;
}
.sidebar nav a:hover { background: var(--sidebar-hover); color: var(--sidebar-text-hover); text-decoration: none; }
.sidebar nav a.active { background: var(--sidebar-active-bg); color: var(--sidebar-active-text); }
.sidebar nav a .nav-icon { width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.sidebar nav a .nav-icon svg { width: 17px; height: 17px; stroke: currentColor; fill: none; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.sidebar .user-info { padding: 14px 16px; border-top: 1px solid var(--sidebar-border); }
.sidebar .user-info .name { font-weight: 600; font-size: 13px; color: var(--text); }
.sidebar .user-info .role { font-size: 12px; color: var(--text-dim); margin-top: 1px; }
.sidebar .user-info .btn {
  margin-top: 10px; width: 100%; justify-content: center;
  background: transparent; color: var(--text-muted); border: 1px solid var(--border); border-radius: 6px;
  font-size: 12px; padding: 5px 8px;
}
.sidebar .user-info .btn:hover { background: var(--bg-hover); color: var(--text); }

/* Main */
.main { flex: 1; margin-left: 220px; padding: 28px 32px; min-height: 100vh; }
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.page-header h2 { font-size: 20px; font-weight: 700; }

/* Cards */
.card { background: var(--bg-card); border-radius: var(--radius-lg); border: 1px solid var(--border); box-shadow: var(--shadow-sm); margin-bottom: 20px; overflow: hidden; }
.card-header { padding: 14px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.card-header h2 { font-size: 14px; font-weight: 600; }
.card-body { padding: 20px; }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; padding: 10px 16px; color: var(--text-muted); font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; border-bottom: 1px solid var(--border); background: var(--bg-hover); }
td { padding: 10px 16px; border-bottom: 1px solid var(--border-light); color: var(--text-secondary); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #fafbfc; }
td strong { color: var(--text); font-weight: 600; }

/* Badges */
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; line-height: 1.5; }
.badge-green { background: var(--success-light); color: var(--success); }
.badge-red { background: var(--danger-light); color: var(--danger); }
.badge-yellow { background: var(--warning-light); color: var(--warning); }
.badge-blue { background: var(--primary-light); color: var(--primary); }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px; border-radius: 7px; border: none; font-size: 13px; font-weight: 500; cursor: pointer; transition: all var(--transition); font-family: inherit; text-decoration: none; }
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; } .btn-primary:hover { background: var(--primary-hover); }
.btn-danger { background: var(--danger); color: #fff; } .btn-danger:hover { background: #b91c1c; }
.btn-ghost { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); } .btn-ghost:hover { background: var(--bg-hover); }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* Forms */
input, select, textarea { padding: 8px 12px; border-radius: 7px; border: 1px solid var(--border); background: var(--bg-input); color: var(--text); font-size: 13px; font-family: inherit; width: 100%; transition: border-color var(--transition); }
input:focus, select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.1); }
label { display: block; font-size: 13px; font-weight: 500; color: var(--text-secondary); margin-bottom: 4px; }
.form-group { margin-bottom: 16px; }

/* Utilities */
.flex { display: flex; } .items-center { align-items: center; } .justify-between { justify-content: space-between; }
.gap-1 { gap: 8px; } .gap-2 { gap: 16px; } .mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; }
.text-muted { color: var(--text-muted); } .text-sm { font-size: 13px; } .text-xs { font-size: 12px; }
.hidden { display: none !important; }

/* Search */
.search-bar { position: relative; }
.search-bar input { padding-left: 36px; }
.search-bar .search-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-dim); display: flex; }
.search-bar .search-icon svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; }

/* Modal */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.3); display: flex; align-items: center; justify-content: center; z-index: 100; backdrop-filter: blur(2px); }
.modal { background: var(--bg-card); border-radius: var(--radius-lg); padding: 28px; max-width: 480px; width: 90%; max-height: 80vh; overflow-y: auto; box-shadow: 0 20px 60px rgba(0,0,0,.12); }
.modal h2 { margin-bottom: 20px; font-size: 17px; font-weight: 700; }
.modal .actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 24px; }

/* Toast */
.toast-container { position: fixed; top: 16px; right: 16px; z-index: 200; display: flex; flex-direction: column; gap: 8px; }
.toast { padding: 12px 20px; border-radius: var(--radius); font-size: 13px; font-weight: 500; animation: slideIn .3s ease; box-shadow: var(--shadow-md); }
.toast-success { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }
.toast-error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* Login */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--bg); }
.login-card { background: var(--bg-card); border-radius: var(--radius-lg); padding: 40px; width: 400px; max-width: 95%; box-shadow: 0 4px 24px rgba(0,0,0,.06); border: 1px solid var(--border); }
.login-card h1 { font-size: 20px; font-weight: 700; margin-bottom: 4px; text-align: center; color: var(--text); }
.login-card .subtitle { text-align: center; color: var(--text-muted); margin-bottom: 28px; font-size: 13px; }
.login-card .error-msg { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; padding: 10px 14px; border-radius: var(--radius); margin-bottom: 16px; font-size: 13px; text-align: center; }

/* File browser */
.breadcrumb { display: flex; align-items: center; gap: 4px; margin-bottom: 12px; flex-wrap: wrap; }
.breadcrumb a, .breadcrumb span { font-size: 13px; padding: 2px 6px; border-radius: 4px; }
.breadcrumb a:hover { background: var(--bg-hover); text-decoration: none; }
.file-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.file-item {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 16px 12px;
  text-align: center; cursor: pointer; transition: all var(--transition);
}
.file-item:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.file-item.selected { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(37,99,235,.12); }
.file-item .file-icon { font-size: 2.2rem; margin-bottom: 8px; }
.file-item .file-name { font-size: 13px; word-break: break-word; color: var(--text); font-weight: 500; }
.file-item .file-size { font-size: 12px; color: var(--text-dim); margin-top: 4px; }
.file-toolbar { display: flex; gap: 8px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
.file-list-row { display: flex; align-items: center; padding: 8px 16px; border-bottom: 1px solid var(--border-light); cursor: pointer; }
.file-list-row:hover { background: var(--bg-hover); }

/* Context menu */
.ctx-menu { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-md); }
.ctx-menu a { display: block; padding: 8px 16px; color: var(--text-secondary); font-size: 13px; }
.ctx-menu a:hover { background: var(--bg-hover); text-decoration: none; }

/* Progress */
.progress { height: 5px; background: #e9ecef; border-radius: 99px; overflow: hidden; }
.progress-bar { height: 100%; border-radius: 99px; transition: width .3s; }
.progress-green { background: var(--success); } .progress-yellow { background: var(--warning); } .progress-red { background: var(--danger); }

/* Responsive */
@media (max-width: 768px) {
  .sidebar { display: none; } .main { margin-left: 0; padding: 16px; }
  .file-grid { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }
}