/* =====================================================
   LIGHT THEME — modern SaaS, clean, professional
===================================================== */
:root[data-theme="light"] {
    --bg: #f6f8fc;
    --card: #ffffff;
    --card-muted: #f8fafc;
    --card-hover: #f3f6fb;
    --text: #0f172a;
    --text-muted: #475569;
    --text-soft: #64748b;
    --border: #e2e8f0;
    --border-strong: #cbd5e1;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --success: #16a34a;
    --warning: #f59e0b;
    --danger: #dc2626;
    --sidebar-bg: #ffffff;
    --sidebar-hover: #f8fafc;
    --sidebar-active: #eff6ff;
    --sidebar-link: #334155;
    --sidebar-link-hover: #0f172a;
    --sidebar-link-active: #1d4ed8;
    --icon-muted: #64748b;
    --topbar-bg: #ffffff;
    --input-bg: #ffffff;
    --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-sm: 0 8px 24px rgba(15, 23, 42, 0.06);
}

/* =====================================================
   DARK THEME — deep, readable, product-like
===================================================== */
:root[data-theme="dark"] {
    --bg: #0b1220;
    --card: #0f172a;
    --card-muted: #111c31;
    --card-hover: #16233d;
    --text: #e5edf7;
    --text-muted: #cbd5e1;
    --text-soft: #94a3b8;
    --border: #1e293b;
    --border-strong: #334155;
    --primary: #3b82f6;
    --primary-hover: #60a5fa;
    --success: #22c55e;
    --warning: #fbbf24;
    --danger: #ef4444;
    --sidebar-bg: #0b1220;
    --sidebar-hover: #111c31;
    --sidebar-active: rgba(59, 130, 246, 0.12);
    --sidebar-link: #cbd5e1;
    --sidebar-link-hover: #f8fafc;
    --sidebar-link-active: #93c5fd;
    --icon-muted: #94a3b8;
    --topbar-bg: #0b1220;
    --input-bg: #0f172a;
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.25);
    --shadow-sm: 0 12px 28px rgba(0, 0, 0, 0.28);
}