/* NLP Management Portal - Admin Styles */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --blue: #1a73e8;
    --blue-dark: #1557b0;
    --bg: #f0f2f5;
    --sidebar-bg: #1e293b;
    --sidebar-text: #94a3b8;
    --sidebar-active: #fff;
    --card-bg: #fff;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
    --green: #16a34a;
    --red: #dc2626;
    --yellow: #d97706;
    --green-bg: #dcfce7;
    --red-bg: #fef2f2;
    --yellow-bg: #fef9c3;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
}

/* Login */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-card {
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    padding: 40px;
    width: 100%; max-width: 400px;
    margin: 20px;
}
.login-card h1 { font-size: 22px; color: var(--blue); margin-bottom: 4px; }
.login-card .sub { color: var(--text-light); font-size: 13px; margin-bottom: 24px; }

/* Layout */
.app { display: flex; min-height: 100vh; }
.sidebar {
    width: 220px;
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex; flex-direction: column; flex-shrink: 0;
    position: fixed; top: 0; left: 0; bottom: 0; z-index: 100;
}
.sidebar-brand {
    padding: 20px 16px;
    font-size: 15px; font-weight: 700; color: #fff;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.sidebar-brand small { display: block; font-weight: 400; font-size: 11px; color: var(--sidebar-text); margin-top: 2px; }
.sidebar-nav { flex: 1; padding: 12px 0; overflow-y: auto; }
.nav-item {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 16px; color: var(--sidebar-text); text-decoration: none;
    font-size: 13px; font-weight: 500; cursor: pointer;
    transition: all 0.15s; border-left: 3px solid transparent;
}
.nav-item:hover { color: #e2e8f0; background: rgba(255,255,255,0.05); }
.nav-item.active { color: var(--sidebar-active); background: rgba(255,255,255,0.08); border-left-color: var(--blue); }
.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }
.sidebar-footer {
    padding: 12px 16px;
    border-top: 1px solid rgba(255,255,255,0.08);
    font-size: 12px;
}
.sidebar-footer .user-name { color: #fff; font-weight: 500; }
.sidebar-footer .logout-btn {
    color: var(--sidebar-text); cursor: pointer; text-decoration: underline;
    background: none; border: none; font-size: 12px; padding: 0; margin-top: 4px;
}
.sidebar-footer .logout-btn:hover { color: #fff; }
.main { margin-left: 220px; flex: 1; min-height: 100vh; }
.topbar {
    background: var(--card-bg); border-bottom: 1px solid var(--border);
    padding: 16px 24px; display: flex; align-items: center; justify-content: space-between;
}
.topbar h2 { font-size: 18px; font-weight: 600; }
.content { padding: 24px; }

/* Cards */
.card {
    background: var(--card-bg); border-radius: 8px;
    border: 1px solid var(--border); margin-bottom: 20px;
}
.card-header {
    padding: 16px 20px; border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}
.card-header h3 { font-size: 15px; font-weight: 600; }
.card-body { padding: 20px; }
.card-body.no-pad { padding: 0; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px; padding: 20px; }
.stat-card .label { font-size: 12px; color: var(--text-light); text-transform: uppercase; letter-spacing: 0.5px; font-weight: 500; }
.stat-card .value { font-size: 28px; font-weight: 700; margin-top: 4px; }

/* Tables */
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 16px; text-align: left; border-bottom: 1px solid var(--border); }
th { background: #f8fafc; font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-light); white-space: nowrap; }
td { font-size: 13px; }
tr:hover td { background: #f8fafc; }
td.mono { font-family: 'SF Mono', Monaco, Consolas, monospace; font-size: 12px; }
td.truncate { max-width: 250px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
td.actions { white-space: nowrap; }

/* Badges */
.badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.3px; }
.badge-green { background: var(--green-bg); color: var(--green); }
.badge-red { background: var(--red-bg); color: var(--red); }
.badge-yellow { background: var(--yellow-bg); color: var(--yellow); }
.badge-gray { background: #f1f5f9; color: var(--text-light); }
.badge-blue { background: #dbeafe; color: var(--blue); }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 16px; border: 1px solid var(--border); border-radius: 6px;
    font-size: 13px; font-weight: 500; cursor: pointer;
    background: var(--card-bg); color: var(--text); transition: all 0.15s; text-decoration: none;
}
.btn:hover { border-color: #cbd5e1; background: #f8fafc; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn-primary:hover { background: var(--blue-dark); }
.btn-danger { background: var(--red); color: #fff; border-color: var(--red); }
.btn-danger:hover { background: #b91c1c; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-icon { padding: 4px 8px; border: none; background: none; cursor: pointer; color: var(--text-light); border-radius: 4px; }
.btn-icon:hover { background: #f1f5f9; color: var(--text); }
.btn-icon.danger:hover { color: var(--red); }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 4px; }
input[type="text"], input[type="password"], input[type="email"], input[type="number"], input[type="search"], select, textarea {
    width: 100%; padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px;
    font-size: 13px; font-family: inherit; outline: none; transition: border-color 0.15s; background: #fff;
}
input:focus, select:focus, textarea:focus { border-color: var(--blue); }
.input-group { display: flex; gap: 8px; align-items: center; }
.input-group input, .input-group select { flex: 1; }

/* Toolbar */
.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.toolbar .spacer { flex: 1; }
.toolbar .count { font-size: 13px; color: var(--text-light); }

/* Pagination */
.pagination {
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 16px; border-top: 1px solid var(--border); font-size: 13px; color: var(--text-light);
}
.pagination .page-btns { display: flex; gap: 4px; }

/* Modal */
.modal-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,0.4);
    display: flex; align-items: center; justify-content: center; z-index: 1000;
}
.modal {
    background: var(--card-bg); border-radius: 10px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
    width: 100%; max-width: 500px; margin: 20px; max-height: 90vh; overflow-y: auto;
}
.modal-header {
    padding: 16px 20px; border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
}
.modal-header h3 { font-size: 16px; font-weight: 600; }
.modal-body { padding: 20px; }
.modal-footer { padding: 12px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; }

/* Alerts */
.alert { padding: 10px 14px; border-radius: 6px; font-size: 13px; margin-bottom: 16px; }
.alert-error { background: var(--red-bg); color: var(--red); }
.alert-success { background: var(--green-bg); color: var(--green); }
.alert-info { background: #dbeafe; color: var(--blue); }

/* Spinner */
.spinner { display: inline-block; width: 20px; height: 20px; border: 2px solid var(--border); border-top-color: var(--blue); border-radius: 50%; animation: spin 0.6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.loading-wrap { display: flex; align-items: center; justify-content: center; padding: 60px; }

/* Empty state */
.empty { text-align: center; padding: 40px 20px; color: var(--text-light); }

/* Upload */
.upload-zone {
    border: 2px dashed var(--border); border-radius: 8px; padding: 30px;
    text-align: center; cursor: pointer; transition: border-color 0.2s; color: var(--text-light);
}
.upload-zone:hover, .upload-zone.dragover { border-color: var(--blue); color: var(--blue); }
.upload-zone input { display: none; }

.hidden { display: none !important; }

/* Activity bar chart */
.bar-chart { display: flex; align-items: flex-end; gap: 3px; height: 80px; }
.bar-chart .bar { flex: 1; background: var(--blue); border-radius: 2px 2px 0 0; min-width: 4px; transition: height 0.3s; }

/* Line chart container */
#daily-chart { min-height: 240px; }


/* Responsive */
@media (max-width: 768px) {
    .sidebar { width: 60px; }
    .sidebar-brand small, .nav-item span, .sidebar-footer { display: none; }
    .sidebar-brand { font-size: 0; padding: 16px; }
    .sidebar-brand::after { content: "NLP"; font-size: 14px; }
    .nav-item { justify-content: center; padding: 12px; }
    .main { margin-left: 60px; }
    .stats { grid-template-columns: 1fr 1fr; }
}