/* ==========================================================================
   Zoekapp: gedeeld stijlsysteem
   Gebruikt door index.html en alle pagina's in /pages
   ========================================================================== */

:root {
    /* Merkblauw, afgeleid van het app-icoon */
    --primary: #2C6693;
    --primary-dark: #1B4966;
    --primary-light: #EAF2F8;

    /* Bronskleur: verwijst naar munten/artefacten, i.p.v. generiek geel */
    --bronze: #B9793B;
    --bronze-dark: #96602C;
    --bronze-light: #F5E9D8;

    /* Warme, perkament-achtige neutralen i.p.v. steriel wit */
    --parchment: #FAF7F1;
    --parchment-alt: #F1EADC;
    --white: #FFFFFF;
    --ink: #23302F;
    --ink-soft: #56645F;
    --line: rgba(35, 48, 47, 0.12);

    --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --radius: 18px;
    --radius-sm: 10px;
    --shadow: 0 20px 45px rgba(27, 40, 39, 0.12);
    --shadow-sm: 0 8px 20px rgba(27, 40, 39, 0.08);
    --max-width: 1180px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--ink);
    background: var(--parchment);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.15;
    color: var(--ink);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--bronze-dark);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.7rem;
    padding: 0.95rem 1.9rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    border: 2px solid transparent;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
    cursor: pointer;
    white-space: nowrap;
}

.btn i, .btn svg {
    font-size: 1.15rem;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-ghost {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.55);
    color: var(--white);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--white);
}

.btn-outline {
    background: transparent;
    border-color: var(--line);
    color: var(--ink);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-disabled {
    background: rgba(35, 48, 47, 0.06);
    color: var(--ink-soft);
    cursor: default;
    box-shadow: none;
}

.btn-disabled:hover {
    transform: none;
}

.btn-small {
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
}

/* ---------- Site navigation ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(250, 247, 241, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    text-decoration: none;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.3rem;
    color: var(--ink);
}

.nav-brand img {
    width: 36px;
    height: 36px;
    border-radius: 9px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.6rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--ink-soft);
    font-weight: 500;
    font-size: 0.97rem;
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.4rem;
    color: var(--ink);
    cursor: pointer;
}

@media (max-width: 1200px) {
    .nav-links {
        position: fixed;
        top: 68px;
        left: 0;
        right: 0;
        background: var(--parchment);
        border-bottom: 1px solid var(--line);
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 0.5rem 2rem 1rem;
        transform: translateY(-130%);
        opacity: 0;
        transition: transform 0.25s ease, opacity 0.25s ease;
    }

    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
    }

    .nav-links li {
        width: 100%;
        border-top: 1px solid var(--line);
    }

    .nav-links a {
        display: block;
        padding: 0.9rem 0;
    }

    .nav-toggle {
        display: block;
    }
}

/* ---------- Page header (used on sub-pages) ---------- */
.page-header {
    background: linear-gradient(155deg, var(--primary-dark), var(--primary));
    padding: 5rem 2rem 4.5rem;
    color: var(--white);
    text-align: center;
}

.page-header .eyebrow {
    color: var(--bronze-light);
    justify-content: center;
}

.page-header h1 {
    font-size: clamp(2.2rem, 4vw, 3rem);
    margin: 1rem 0 0.8rem;
    color: var(--white);
}

.page-header p {
    font-size: 1.15rem;
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.92;
}

/* ---------- Footer ---------- */
.site-footer {
    background: var(--ink);
    color: rgba(255, 255, 255, 0.85);
    padding: 5rem 0 2.5rem;
    margin-top: 6rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 3rem;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-brand img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.footer-col h3 {
    font-family: var(--font-body);
    color: var(--white);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 1.2rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 0.7rem;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.72);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.footer-col a:hover {
    color: var(--bronze-light);
}

.footer-bottom {
    max-width: var(--max-width);
    margin: 3.5rem auto 0;
    padding: 1.8rem 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.8rem;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.55);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.55);
    text-decoration: none;
}

.footer-bottom a:hover {
    color: var(--bronze-light);
}

@media (max-width: 860px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 560px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* ---------- Generic content sections (used on sub-pages) ---------- */
.content {
    max-width: 800px;
    margin: 0 auto;
    padding: 4.5rem 2rem;
}

.content-section {
    margin-bottom: 3rem;
}

.content-section h2 {
    color: var(--primary-dark);
    font-size: 1.7rem;
    margin-bottom: 1.2rem;
}

.content-section h3 {
    color: var(--bronze-dark);
    font-family: var(--font-body);
    font-size: 1.05rem;
    font-weight: 700;
    margin: 1.4rem 0 0.6rem;
}

.content-section p {
    margin-bottom: 1rem;
    color: var(--ink-soft);
}

.content-section ul, .content-section ol {
    margin: 0 0 1rem 1.4rem;
    color: var(--ink-soft);
}

.content-section li {
    margin-bottom: 0.5rem;
}

.content-section a {
    color: var(--primary);
    text-decoration: underline;
    text-decoration-color: rgba(44, 102, 147, 0.35);
    text-underline-offset: 2px;
}

.content-section strong {
    color: var(--ink);
}

.callout {
    background: var(--bronze-light);
    border: 1px solid rgba(185, 121, 59, 0.25);
    border-radius: var(--radius-sm);
    padding: 1.2rem 1.4rem;
    margin: 1.2rem 0;
    color: var(--ink);
}

.callout strong {
    color: var(--bronze-dark);
}

.last-updated {
    color: var(--ink-soft);
    font-style: italic;
    font-size: 0.92rem;
}

/* ---------- Scroll reveal ---------- */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-group > .reveal:nth-child(1) { transition-delay: 0ms; }
.reveal-group > .reveal:nth-child(2) { transition-delay: 90ms; }
.reveal-group > .reveal:nth-child(3) { transition-delay: 180ms; }
.reveal-group > .reveal:nth-child(4) { transition-delay: 270ms; }
.reveal-group > .reveal:nth-child(5) { transition-delay: 360ms; }
.reveal-group > .reveal:nth-child(6) { transition-delay: 450ms; }

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}