:root {
    /* Defaults (kunnen via beheerpagina worden overschreven) */
    --color-primary: #0ea5e9;
    --color-secondary: #22c55e;
    --color-text: #111827;
    --color-text-inverse: #ffffff;

    --glass-bg: rgba(255, 255, 255, 0.6);
    --glass-border: rgba(255, 255, 255, 0.35);
    --glass-blur: 12px;
    --glass-radius: 16px;
    --glass-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);

    --font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
    --font-size: 16px;

    --btn-radius: 14px;
    --btn-py: 10px;
    --btn-px: 16px;

    --menu-radius: 14px;
    --menu-opacity: 0.85;

    --bg-overlay-opacity: 0.35;
    /* donker masker bovenop achtergrond */

    /* Layout variabelen */
    --container-max: 1280px;
    /* max-breedte centrale content */
    --canvas-max: 960px;
    /* max-breedte van de glass content-kaart */
    --canvas-max-height: 70vh;
    /* max-hoogte content-kaart */
    --canvas-padding: 24px;
    /* padding in de content-kaart */

    /* Footer variabelen */
    --footer-bg: rgba(255, 255, 255, 0.6);
    /* achtergrond van footer glass */
    --footer-blur: 12px;
    /* blursterkte van footer */
    --footer-padding-y: 8px;
    /* verticale padding footer */
    --footer-padding-x: 0px;
    /* horizontale padding footer (balk is full-bleed) */
    --footer-section-padding-y: 10px;
    /* verticale padding per sectie */
    --footer-section-padding-x: 12px;
    /* horizontale padding per sectie */
}

/* Page background image */
body {
    margin: 0;
    font-family: var(--font-family);
    font-size: var(--font-size);
    color: var(--color-text);
    background: #0b1020;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image: var(--background-image, url('/assets/img/backgrounds/default.jpg'));
    /* vervang later dynamisch */
    background-size: cover;
    background-position: center;
    filter: blur(calc(var(--glass-blur) * 0.6));
    z-index: -2;
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, var(--bg-overlay-opacity));
    z-index: -1;
}

/* App shell */
.app-shell {
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
}

.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius);
    box-shadow: var(--glass-shadow);
}

/* Header / Topbar (kan per pagina weggelaten worden, b.v. login) */
.app-header {
    margin: 16px;
    padding: 12px 16px;
}

/* Main: content gecentreerd en lager */
.app-main {
    flex: 1;
    display: flex;
    align-items: center;
    /* verticaal centreren */
    justify-content: center;
    /* horizontaal centreren */
    padding: 24px 16px;
    /* i.p.v. grote margins */
    margin: 0;
    /* haal oude margins weg */
}

.app-main .canvas {
    width: 100%;
    max-width: var(--canvas-max);
    max-height: var(--canvas-max-height);
    padding: var(--canvas-padding);
    overflow: auto;
    /* scrolt binnen kaart als content te lang is */
}

/* Footer: één doorlopende glass-balk over volledige breedte, met 5 secties */
.app-footer {
    width: 100vw;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);

    background: var(--footer-bg);
    backdrop-filter: blur(var(--footer-blur));
    -webkit-backdrop-filter: blur(var(--footer-blur));
    border-top: 1px solid var(--glass-border);

    box-shadow: none;
    border-radius: 0;
    padding: var(--footer-padding-y) var(--footer-padding-x);

    /* Lager profiel en blijft onder in beeld als pagina kort is */
    position: sticky;
    bottom: 0;
    z-index: 10;
}

/* Grid van 5 kolommen zonder visuele “gaten” */
.footer-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0;
    /* geen ruimte tussen secties */
    align-items: stretch;
}

/* Secties lijken onderdeel van dezelfde balk (geen eigen glass!) */
.footer-section,
.footer-section.glass {
    /* forceer: ook als iemand per ongeluk 'glass' toevoegt */
    padding: var(--footer-section-padding-y) var(--footer-section-padding-x);
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    border-left: 1px solid var(--glass-border);
}

.footer-section:first-child {
    border-left: none;
}

/* Buttons / links */
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--btn-py)*1px) calc(var(--btn-px)*1px);
    border-radius: var(--btn-radius);
    border: 1px solid color-mix(in srgb, var(--color-primary) 50%, transparent);
    background: color-mix(in srgb, var(--color-primary) 15%, white);
    color: var(--color-text);
    text-decoration: none;
    transition: transform .12s ease, background .12s ease, box-shadow .12s ease;
}

.button:hover {
    transform: translateY(-1px);
}

.button.primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border-color: color-mix(in srgb, var(--color-primary) 70%, black);
}

/* Simple menu */
.menu {
    background: color-mix(in srgb, var(--glass-bg) 100%, transparent);
    border: 1px solid var(--glass-border);
    border-radius: var(--menu-radius);
    opacity: var(--menu-opacity);
    padding: 8px 12px;
}

/* Utility */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
}