@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&display=swap');

:root {
    --primary: #1a73e8;
    --primary-dark: #1557b0;
    --primary-light: #e8f0fe;
    --success: #0f9d58;
    --success-light: #e6f4ea;
    --danger: #d93025;
    --danger-light: #fce8e6;
    --warning: #f9ab00;
    --warning-light: #fef7e0;
    --info: #1a73e8;
    --info-light: #e8f0fe;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-sidebar: #1a1d29;
    --bg-sidebar-hover: #282c3a;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --text-muted: #80868b;
    --text-sidebar: #e8eaed;
    --border: #dadce0;
    --border-light: #e8eaed;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 2px 8px rgba(0,0,0,0.1);
}

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

body {
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    color: var(--text-primary);
    background: var(--bg-secondary);
    line-height: 1.5;
}

/* ─── LAYOUT ─────────────────────────────────────── */
.app-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 240px;
    background: var(--bg-sidebar);
    color: var(--text-sidebar);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
}

.sidebar-brand {
    padding: 20px 20px 16px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.sidebar-brand h1 {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.3px;
}

.sidebar-brand span {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 0;
    overflow-y: auto;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.15s;
    border-left: 3px solid transparent;
}

.sidebar-nav a:hover {
    color: #fff;
    background: var(--bg-sidebar-hover);
}

.sidebar-nav a.active {
    color: #fff;
    background: var(--bg-sidebar-hover);
    border-left-color: var(--primary);
}

.sidebar-nav a i {
    font-size: 16px;
    width: 20px;
    text-align: center;
}

.sidebar-nav .nav-section {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: rgba(255,255,255,0.35);
    padding: 16px 20px 6px;
}

.sidebar-footer {
    padding: 12px 20px;
    border-top: 1px solid rgba(255,255,255,0.08);
    font-size: 12px;
}

.sidebar-footer a {
    color: rgba(255,255,255,0.5);
    text-decoration: none;
}

.sidebar-footer a:hover {
    color: #fff;
}

.main-content {
    margin-left: 240px;
    flex: 1;
    min-height: 100vh;
}

/* ─── TOP BAR ────────────────────────────────────── */
.topbar {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    padding: 0 24px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar h2 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.topbar-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-secondary);
}

.topbar-status .dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
}

.dot-green { background: var(--success); }
.dot-amber { background: var(--warning); }
.dot-red { background: var(--danger); }

/* ─── PAGE ───────────────────────────────────────── */
.page-content {
    padding: 24px;
}

/* ─── CARDS ──────────────────────────────────────── */
.card {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 16px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.card-header h3 {
    font-size: 15px;
    font-weight: 600;
}

/* ─── METRIC CARDS ───────────────────────────────── */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.metric-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    padding: 16px;
}

.metric-card .label {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.metric-card .value {
    font-size: 22px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.metric-card .value.positive { color: var(--success); }
.metric-card .value.negative { color: var(--danger); }
.metric-card .value.warning { color: var(--warning); }

/* ─── PILLS / BADGES ────────────────────────────── */
.pill {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.2px;
}

.pill-success { background: var(--success-light); color: var(--success); }
.pill-danger { background: var(--danger-light); color: var(--danger); }
.pill-warning { background: var(--warning-light); color: #b36b00; }
.pill-info { background: var(--info-light); color: var(--info); }
.pill-muted { background: #f1f3f4; color: var(--text-secondary); }

/* ─── TABLES ─────────────────────────────────────── */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    text-align: left;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-light);
    font-size: 13px;
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table .mono {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 12px;
}

/* ─── BUTTONS ────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    font-family: 'DM Sans', sans-serif;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

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

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

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

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

/* ─── FORMS ──────────────────────────────────────── */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    color: var(--text-primary);
    background: var(--bg-primary);
    transition: border-color 0.15s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26,115,232,0.12);
}

.form-control::placeholder {
    color: var(--text-muted);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235f6368' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

.field-description {
    background: var(--info-light);
    color: var(--primary-dark);
    padding: 8px 12px;
    border-radius: var(--radius);
    font-size: 12px;
    margin-top: 6px;
    line-height: 1.5;
}

/* ─── ALERTS ─────────────────────────────────────── */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 13px;
    margin-bottom: 16px;
}

.alert-error {
    background: var(--danger-light);
    color: var(--danger);
    border: 1px solid rgba(217,48,37,0.2);
}

.alert-success {
    background: var(--success-light);
    color: var(--success);
    border: 1px solid rgba(15,157,88,0.2);
}

.alert-warning {
    background: var(--warning-light);
    color: #b36b00;
    border: 1px solid rgba(249,171,0,0.2);
}

/* ─── UTILITY ────────────────────────────────────── */
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-right { text-align: right; }
.text-center { text-align: center; }
.font-mono { font-family: 'JetBrains Mono', 'Fira Code', monospace; font-size: 12px; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.d-flex { display: flex; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-1 { flex: 1; }

/* ─── LOGIN PAGE ─────────────────────────────────── */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1d29 0%, #1a3a5c 100%);
}

.login-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-md);
}

.login-card h1 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 4px;
}

.login-card .subtitle {
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 28px;
}