/* ============================================================================
   DKS Migration Portal — enterprise design system
   Trust & Authority palette (navy + blue), dense data-first components.
   Design tokens + component styling shared by every layout.
   ========================================================================== */

:root {
    /* Brand & accent — navy primary, blue accent (Stripe/Linear/Cloudflare register) */
    --dks-primary: #0f172a;          /* slate 900 */
    --dks-primary-600: #1e293b;
    --dks-primary-soft: #eef2f7;
    --dks-accent: #0369a1;           /* sky 700 */
    --dks-accent-600: #075985;

    /* Sidebar — solid, not a loud gradient */
    --dks-sidebar-bg: #0b1220;
    --dks-sidebar-border: rgba(255, 255, 255, .06);
    --dks-sidebar-width: 248px;

    /* Neutrals */
    --dks-bg: #f8fafc;
    --dks-surface: #ffffff;
    --dks-border: #e2e8f0;
    --dks-text: #0f172a;
    --dks-text-muted: #64748b;

    /* Status */
    --dks-success: #15803d;
    --dks-success-soft: #ecfdf5;
    --dks-warning: #b45309;
    --dks-warning-soft: #fffbeb;
    --dks-danger: #dc2626;
    --dks-danger-soft: #fef2f2;

    /* Elevation + radius — flat, minimal shadow (not glassmorphism/heavy gradients) */
    --dks-radius: 10px;
    --dks-radius-sm: 7px;
    --dks-shadow-sm: 0 1px 2px rgba(15, 23, 42, .05);
    --dks-shadow-md: 0 2px 6px rgba(15, 23, 42, .06);
    --dks-shadow-lg: 0 8px 20px rgba(15, 23, 42, .10);

    /* Density */
    --dks-row-h: 40px;
}

html {
    position: relative;
    min-height: 100%;
    font-size: 14.5px;
}

body {
    margin: 0;
    background: var(--dks-bg);
    color: var(--dks-text);
    font-family: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

a { color: var(--dks-accent); }
:focus-visible { outline: 2px solid var(--dks-accent); outline-offset: 2px; }

/* ── Sidebar ─────────────────────────────────────────────────────────────── */
.sidebar {
    width: var(--dks-sidebar-width);
    min-height: 100vh;
    background: var(--dks-sidebar-bg);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--dks-sidebar-border);
}

.sidebar .brand {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 17px 18px;
    color: #fff;
    text-decoration: none;
    border-bottom: 1px solid var(--dks-sidebar-border);
}

.sidebar .brand .brand-mark {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    object-fit: contain;
    flex: 0 0 auto;
}

.sidebar .brand .brand-text { line-height: 1.25; }
.sidebar .brand .brand-text strong { font-size: 14px; font-weight: 700; display: block; letter-spacing: -.1px; }
.sidebar .brand .brand-text small { font-size: 10.5px; color: #7c8ba1; font-weight: 500; text-transform: uppercase; letter-spacing: .04em; }

.sidebar .nav { flex: 1 1 auto; overflow-y: auto; padding: 8px 0 16px; }

.sidebar .nav-label {
    font-size: 10px;
    font-weight: 700;
    color: #566178;
    text-transform: uppercase;
    letter-spacing: .08em;
    padding: 16px 18px 6px;
}

.sidebar .nav-link {
    position: relative;
    color: #aab4c4;
    padding: 8px 18px;
    margin: 1px 8px;
    font-size: 13.2px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    border-radius: var(--dks-radius-sm);
    transition: background .12s ease, color .12s ease;
}

.sidebar .nav-link .nav-icon,
.sidebar .nav-link .icon { flex: 0 0 auto; opacity: .85; }

.sidebar .nav-link:hover { background: rgba(255, 255, 255, .06); color: #fff; }
.sidebar .nav-link:hover .nav-icon { opacity: 1; }

.sidebar .nav-link.active {
    background: rgba(3, 105, 161, .22);
    color: #fff;
}
.sidebar .nav-link.active .nav-icon { opacity: 1; color: #7dd3fc; }

/* ── Main content + topbar ───────────────────────────────────────────────── */
.main-content {
    margin-left: var(--dks-sidebar-width);
    padding: 20px 26px;
}

.topbar {
    background: var(--dks-surface);
    border: 1px solid var(--dks-border);
    border-radius: var(--dks-radius);
    box-shadow: var(--dks-shadow-sm);
    padding: 12px 20px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.topbar h5 { margin: 0; font-weight: 700; font-size: 16px; color: var(--dks-text); letter-spacing: -.1px; }

.topbar .user-chip {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 4px 10px 4px 4px;
    background: var(--dks-bg);
    border: 1px solid var(--dks-border);
    border-radius: 999px;
    cursor: pointer;
}

.topbar .avatar {
    width: 28px; height: 28px;
    border-radius: 50%;
    background: var(--dks-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    flex: 0 0 auto;
}

/* ── Cards ───────────────────────────────────────────────────────────────── */
.card {
    border: 1px solid var(--dks-border);
    border-radius: var(--dks-radius);
    box-shadow: none;
}

.card-header {
    background: var(--dks-surface);
    border-bottom: 1px solid var(--dks-border);
    font-weight: 700;
    font-size: 13.5px;
    padding: 13px 16px;
    border-top-left-radius: var(--dks-radius);
    border-top-right-radius: var(--dks-radius);
}

.card-body { padding: 16px; }

/* Stat tiles */
.stat-card { text-align: left; padding: 16px 18px; position: relative; }
.stat-card .num { font-size: 26px; font-weight: 700; line-height: 1.15; color: var(--dks-text); font-variant-numeric: tabular-nums; }
.stat-card .lbl { font-size: 10.5px; color: var(--dks-text-muted); text-transform: uppercase; letter-spacing: .06em; font-weight: 600; margin-top: 2px; }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn { border-radius: var(--dks-radius-sm); font-weight: 600; font-size: 13px; padding: 7px 14px; transition: background .12s ease, border-color .12s ease; cursor: pointer; }
.btn-xs { padding: 3px 9px; font-size: 11.5px; }

.btn-primary {
    background: var(--dks-primary);
    border-color: var(--dks-primary);
    box-shadow: none;
}
.btn-primary:hover, .btn-primary:focus {
    background: var(--dks-primary-600);
    border-color: var(--dks-primary-600);
}

.btn-info, .btn-outline-primary {
    color: var(--dks-accent);
    border-color: var(--dks-accent);
}
.btn-info:hover, .btn-outline-primary:hover {
    background: var(--dks-accent);
    border-color: var(--dks-accent);
    color: #fff;
}

.btn-success { background: var(--dks-success); border-color: var(--dks-success); box-shadow: none; }
.btn-success:hover { background: #14622f; border-color: #14622f; }

.btn:focus, .btn:active:focus, .form-control:focus, .form-select:focus, .form-check-input:focus {
    box-shadow: 0 0 0 .18rem rgba(3, 105, 161, .22);
    border-color: var(--dks-accent);
}

/* ── Forms ───────────────────────────────────────────────────────────────── */
.form-label { font-weight: 600; font-size: 12.5px; color: var(--dks-text); margin-bottom: 4px; }
.form-control, .form-select { border-radius: var(--dks-radius-sm); border-color: var(--dks-border); font-size: 13.5px; padding: 8px 11px; }
.form-text { font-size: 11.5px; color: var(--dks-text-muted); }

/* ── Tables (dense, data-first) ──────────────────────────────────────────── */
.table { --bs-table-bg: transparent; }
.table th {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--dks-text-muted);
    background: var(--dks-bg);
    border-bottom: 1px solid var(--dks-border);
    padding: 8px 12px;
    white-space: nowrap;
}
.table td { font-size: 13px; vertical-align: middle; padding: 9px 12px; border-color: var(--dks-border); }
.table-hover tbody tr { transition: background .1s; }
.table-hover tbody tr:hover { background: var(--dks-primary-soft); }

/* ── Badges / pills ──────────────────────────────────────────────────────── */
.badge-status { font-size: 10.5px; padding: 3px 9px; border-radius: 999px; font-weight: 600; letter-spacing: .01em; }
.badge { font-weight: 600; font-size: 11px; }

/* ── Alerts ──────────────────────────────────────────────────────────────── */
.alert { border-radius: var(--dks-radius-sm); font-size: 13px; border: 1px solid transparent; }
.alert-success { background: var(--dks-success-soft); color: #065f46; border-color: #a7f3d0; }
.alert-warning { background: var(--dks-warning-soft); color: #92400e; border-color: #fde68a; }
.alert-danger  { background: var(--dks-danger-soft); color: #991b1b; border-color: #fecaca; }
.alert-info    { background: var(--dks-primary-soft); color: var(--dks-primary-600); border-color: #cbd5e1; }

/* ── Code blocks ─────────────────────────────────────────────────────────── */
pre { border-radius: var(--dks-radius-sm); }

@media (max-width: 768px) {
    .sidebar { position: static; width: 100%; min-height: auto; }
    .main-content { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; animation: none !important; }
}