:root {
    --base: 8px;
    --phi: 1.618;
    
    /* Matte app canvas - zelfde basis als KLIC Drive (hoofdvlak + sidebar) */
    --color-bg-deep: #121212;
    --color-bg-surface: #1a1a1a;
    --color-bg-card: #1e1e1e;
    --color-border: #2a2a2a;
    --color-border-hover: #444444;
    --color-text-main: #E5E7EB;
    --color-text-dim: #9CA3AF;
    --color-text-muted: #6B7280;
    --color-brand: #CCFF00;
    --color-success: #CCFF00;
    --color-success-bg: rgba(204, 255, 0, 0.1);
    --color-success-border: rgba(204, 255, 0, 0.2);
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    
    /* Top Bar & Sidebar Heights/Widths */
    --top-bar-height: 48px;
    --mobile-top-bar-height: 64px;
    /* Onder topbar: zelfde offset als marge boven .team-switcher → titels lijnen met org-dropdown */
    --dash-title-pad-top: 12px;
    --sidebar-width: 232px;
    --sidebar-padding-x: 16px; /* Strakke inset: zelfde als hoofdcontent (--dash-page-gutter-x) */
    --mobile-nav-height: 56px;
    
    /* Golden Ratio Spacing Scale (base 28px, each step ÷ φ)
       φ = 1.618 - used for harmonious proportions throughout */
    --space-xxl: 45px;  /* 28 × φ */
    --space-xl: 28px;   /* base */

    /* Eén strakke horizontale marge: Drive, sidebarnav, view-headers, tabellen */
    --dash-page-gutter-x: var(--sidebar-padding-x);
    --space-lg: 17px;   /* 28 / φ */
    --space-md: 11px;   /* 17 / φ */
    --space-sm: 7px;    /* 11 / φ */
    --space-xs: 4px;    /* 7 / φ */
    
    /* Typography scale (φ-based: 14 → 22 → 28) */
    --text-caption: 0.8125rem;   /* 13px - meta, labels */
    --text-badge: 0.6875rem;     /* 11px - pills, badges */
    --text-body: 0.875rem;       /* 14px */
    --text-subtitle: 1.25rem;    /* 20px */
    --text-title: 1.625rem;      /* 26px - detail h1 */
    
    /* Radii - Precision first */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-full: 9999px;
    /* Taps / primary controls: softer “squircle” proportion (~18px on ~44–48px height) */
    --radius-control: 18px;
    /* Project header: Delen / Verleng - strakke hoeken, geen pill-vorm */
    --radius-action-btn: 8px;

    /* Project list grid (Drive lijstweergave) — vaste px-kolommen zodat kop en rijen dezelfde tracks delen */
    --project-list-grid-cols:
        minmax(140px, 1.35fr)
        96px
        minmax(108px, 1fr)
        76px
        92px
        72px
        54px
        54px
        88px
        48px
        44px
        28px;
    --project-list-grid-gap: 8px;
    --project-list-grid-bulk-cols: 32px var(--project-list-grid-cols);
    --project-list-scroll-min: 1060px;

    /* Drive boom: chevron + icoon links van naam (Finder-stijl) */
    --drive-tree-chevron: 18px;
    --drive-tree-gap: 6px;
    --drive-tree-icon: 16px;
    --drive-tree-lead: calc(var(--drive-tree-chevron) + var(--drive-tree-gap) + var(--drive-tree-icon));
    --drive-tree-indent: 16px;

    /* Alpha backgrounds - Dark Mode */
    --color-bg-alpha-02: rgba(255,255,255,0.02);
    --color-bg-alpha-05: rgba(255,255,255,0.05);
    --color-bg-alpha-10: rgba(255,255,255,0.1);
    --color-bg-alpha-20: rgba(255,255,255,0.2);
    
    /* KLIC discipline-kleuren (zelfde als viewer: klic-render.js hulpmiddelIcons) */
    --klic-disc-elektra: #ff0000;
    --klic-disc-gas: #ffee00;
    --klic-disc-water: #29b6f6;
    --klic-disc-telecom: #00aa00;
    --klic-disc-riool: #8B4513;
    --klic-disc-warmte: #ff6600;
    --klic-disc-overig: #808080;
    --klic-disc-veiligheid: #ff4400;
    --klic-disc-huisaansluiting: #6366f1;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;

    /* Native <select>: custom chevron + rechter inset (zelfde signaal als org-switcher) */
    --select-chic-chevron: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 6'%3E%3Cpath fill='none' stroke='%23a1a1aa' stroke-width='1.2' stroke-linecap='round' stroke-linejoin='round' d='M1.2 1.2L5 4.4l3.8-3.2'/%3E%3C/svg%3E");
    --select-chic-chevron-lm: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 6'%3E%3Cpath fill='none' stroke='%234a5565' stroke-width='1.2' stroke-linecap='round' stroke-linejoin='round' d='M1.2 1.2L5 4.4l3.8-3.2'/%3E%3C/svg%3E");
    --select-native-pad-r: 2.75rem;
    --select-native-pad-r-compact: 2.25rem;

    /* Folder-access drawer: start onder vaste app-header (.top-bar-desktop is buiten .view-body-wrapper;
       drawer zit erin → z-index “wint” niet van topbar zonder deze offset). */
    --folder-access-header-offset: var(--top-bar-height);
}

body.light-mode {
    color-scheme: light;
    /* Hoger contrast tussen vlakken en grijstinten (leesbaarheid) */
    --color-bg-deep: #E8EAEF;
    --color-bg-surface: #DCDEE5;
    --color-bg-card: #FFFFFF;
    --color-border: #B8BDC8;
    --color-border-hover: #9DA3AE;
    --color-text-main: #111318;
    --color-text-dim: #3D424A;
    --color-text-muted: #5C6169;
    /* Dashboard gebruikt warm oranje als merk-accent (geen lime op wit) */
    --color-brand: #FF5F1F;
    --color-success: #FF5F1F;
    --color-success-bg: rgba(255, 95, 31, 0.08);
    --color-success-border: rgba(255, 95, 31, 0.22);
    --color-warning: #FF9F0A;
    --color-error: #FF3B30;
    --color-primary-blue: #0071E3;

    --color-bg-alpha-02: rgba(0,0,0,0.03);
    --color-bg-alpha-05: rgba(0,0,0,0.06);
    --color-bg-alpha-10: rgba(0,0,0,0.09);
    --color-bg-alpha-20: rgba(0,0,0,0.14);
    --preview-3d-bg: #E4E6EB;
}

body.light-mode,
body.light-mode * {
    font-weight: 300;
}

body.light-mode h1, body.light-mode h2, body.light-mode h3,
body.light-mode .tab-label, body.light-mode .stat-value,
body.light-mode .project-title, body.light-mode strong,
body.light-mode b, body.light-mode .bold {
    font-weight: 500;
    letter-spacing: -0.02em;
}

body.light-mode .stat-number,
body.light-mode .big-number {
    font-weight: 200;
    letter-spacing: -0.04em;
}

body.light-mode .sidebar,
body.light-mode .top-bar {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

body.light-mode .card,
body.light-mode .stat-card,
body.light-mode .project-card {
    box-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 0 0 1px rgba(0,0,0,0.03);
    border-color: transparent;
}

body.light-mode .card:hover,
body.light-mode .stat-card:hover,
body.light-mode .project-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.06), 0 0 0 1px rgba(0,0,0,0.04);
}

body.light-mode .btn-primary,
body.light-mode .action-btn-primary {
    background: var(--color-brand);
    color: #fff;
}

body.light-mode .btn-primary:hover,
body.light-mode .action-btn-primary:hover {
    filter: brightness(1.06);
}

body.light-mode .badge-success {
    background: rgba(52, 199, 89, 0.1);
    color: #248A3D;
}

body.light-mode .badge-warning {
    background: rgba(255, 159, 10, 0.1);
    color: #B25000;
}

body.light-mode .badge-error {
    background: rgba(255, 59, 48, 0.1);
    color: #D70015;
}

body.light-mode ::selection {
    background: rgba(0, 113, 227, 0.15);
}