/* css/style.css */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    line-height: 1.6;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul {
    margin: 0;
    padding-left: 1.2rem;
}

p,
h1,
h2,
h3 {
    margin: 0;
}

button {
    font: inherit;
}

/* -----------------------------
   Design tokens (kleuren, spacing)
------------------------------ */
:root {
    --bg: #ffffff;
    --text: #111827;
    --muted: #6b7280;

    --card: #ffffff;
    --border: #e5e7eb;

    --primary: #2563eb; /* blauw */
    --primary-contrast: #ffffff;

    --shadow: 0 10px 20px rgba(0, 0, 0, 0.06);

    --radius: 16px;
    --container: 1100px;

    --space-1: 8px;
    --space-2: 12px;
    --space-3: 16px;
    --space-4: 24px;
    --space-5: 32px;
    --space-6: 48px;
    --space-7: 64px;
}

/* Dark mode (via JS: body class "dark") */
body.dark {
    --bg: #0b1220;
    --text: #e5e7eb;
    --muted: #9ca3af;

    --card: #0f1a30;
    --border: #1f2a44;

    --primary: #60a5fa;
    --primary-contrast: #0b1220;

    --shadow: 0 10px 20px rgba(0, 0, 0, 0.35);
}

body {
    background: var(--bg);
    color: var(--text);
}

/* -----------------------------
   Helpers
------------------------------ */
.container {
    width: min(100% - 2 * var(--space-4), var(--container));
    margin-inline: auto;
}

.section {
    padding: var(--space-7) 0;
}

.section.alt {
    background: rgba(0, 0, 0, 0.03);
}

body.dark .section.alt {
    background: rgba(255, 255, 255, 0.04);
}

.section-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.muted {
    color: var(--muted);
}

.small {
    font-size: 0.95rem;
    color: var(--muted);
}

.kicker {
    color: var(--muted);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.lead {
    font-size: 1.1rem;
    color: var(--muted);
    margin-top: var(--space-3);
    max-width: 60ch;
}

/* Skip link */
.skip-link {
    position: absolute;
    left: -999px;
    top: 8px;
    background: var(--primary);
    color: var(--primary-contrast);
    padding: 10px 12px;
    border-radius: 10px;
    z-index: 999;
}

.skip-link:focus {
    left: 8px;
}

/* -----------------------------
   Typografie
------------------------------ */
h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.15;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    line-height: 1.2;
    margin-bottom: var(--space-3);
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.2rem;
    line-height: 1.25;
    margin-bottom: var(--space-2);
}

/* -----------------------------
   Header + navigatie
------------------------------ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

body.dark .site-header {
    background: rgba(11, 18, 32, 0.75);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: var(--space-3) 0;
}

.logo {
    font-weight: 800;
    letter-spacing: -0.02em;
    font-size: 1.1rem;
}

.logo span {
    color: var(--primary);
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.nav-toggle {
    display: none;
    border: 1px solid var(--border);
    background: var(--card);
    padding: 10px 12px;
    border-radius: 12px;
    cursor: pointer;
}

.nav-list {
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 0;
    margin: 0;
}

.nav-list a {
    display: inline-block;
    padding: 10px 12px;
    border-radius: 12px;
    color: var(--muted);
}

.nav-list a:hover {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text);
}

body.dark .nav-list a:hover {
    background: rgba(255, 255, 255, 0.06);
}

.nav-list a.active {
    color: var(--text);
    font-weight: 700;
    border: 1px solid var(--border);
    background: var(--card);
}

.theme-toggle {
    border: 1px solid var(--border);
    background: var(--card);
    padding: 10px 12px;
    border-radius: 12px;
    cursor: pointer;
}

.theme-toggle.dark {
    color: var(--text);
}

.theme-toggle:hover,
.nav-toggle:hover {
    box-shadow: var(--shadow);
}

/* -----------------------------
   Hero
------------------------------ */
.hero {
    padding: var(--space-7) 0;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: var(--space-6);
    align-items: start;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.quick-facts {
    list-style: none;
    padding: 0;
    margin-top: var(--space-5);
    display: grid;
    gap: var(--space-2);
    color: var(--muted);
}

.quick-facts strong {
    color: var(--text);
}

.hero-card {
    border: 1px solid var(--border);
    background: var(--card);
    border-radius: var(--radius);
    padding: var(--space-4);
    box-shadow: var(--shadow);
}

.avatar {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: calc(var(--radius) - 4px);
    border: 1px dashed var(--border);
    margin-bottom: var(--space-3);
    overflow: hidden;
}

.avatar img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 30%;
}

body.dark .avatar {
    background: linear-gradient(
            135deg,
            rgba(96, 165, 250, 0.18),
            rgba(255, 255, 255, 0.03)
    );
}

/* -----------------------------
   Layout grids
------------------------------ */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
    align-items: start;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    align-items: start;
}

.info-box {
    border: 1px solid var(--border);
    background: var(--card);
    border-radius: var(--radius);
    padding: var(--space-4);
    box-shadow: var(--shadow);
}

/* -----------------------------
   Buttons + links
------------------------------ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 16px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--card);
    cursor: pointer;
    font-weight: 600;
}

.btn:hover {
    box-shadow: var(--shadow);
}

.btn.primary {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--primary-contrast);
}

.btn.small {
    padding: 10px 12px;
    border-radius: 12px;
    font-size: 0.95rem;
}

.text-link {
    color: var(--primary);
    font-weight: 700;
}

.text-link:hover {
    text-decoration: underline;
}

/* -----------------------------
   Tags
------------------------------ */
.tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-3);
}

.tag {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--muted);
    font-weight: 600;
}

/* -----------------------------
   Cards (projecten)
------------------------------ */
.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
    margin-top: var(--space-4);
}

.card {
    border: 1px solid var(--border);
    background: var(--card);
    border-radius: var(--radius);
    padding: var(--space-4);
    box-shadow: var(--shadow);
    display: grid;
    gap: var(--space-2);
}

.card p {
    color: var(--muted);
}

.card .meta {
    font-size: 0.95rem;
    color: var(--muted);
}

/* -----------------------------
   CTA
------------------------------ */
.section.cta {
    padding: var(--space-6) 0;
}

.cta-inner {
    border: 1px solid var(--border);
    background: var(--card);
    border-radius: var(--radius);
    padding: var(--space-5);
    box-shadow: var(--shadow);

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

/* -----------------------------
   Footer
------------------------------ */
.site-footer {
    border-top: 1px solid var(--border);
    padding: var(--space-5) 0;
}

.footer-inner {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-3);
}

/* -----------------------------
   Responsive
------------------------------ */
@media (max-width: 900px) {
    .hero-inner {
        grid-template-columns: 1fr;
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

    .cards {
        grid-template-columns: 1fr;
    }

    .cta-inner {
        flex-direction: column;
        align-items: stretch;
    }
}

@media (max-width: 720px) {
    .nav-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .nav-list {
        display: none;
        position: absolute;
        right: var(--space-4);
        top: 64px;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        padding: 10px;
        border: 1px solid var(--border);
        background: var(--card);
        border-radius: 14px;
        box-shadow: var(--shadow);
        min-width: 220px;
    }

    .nav-list.open {
        display: flex;
    }

    .nav-list a {
        padding: 10px 12px;
    }

    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}

.page-about .hero-card {
    max-width: 320px;
}

.page-about .avatar {
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
}

.page-about .avatar img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 20%;
}

.page-projects .embed {
    border: 1px solid var(--border);
    border-radius: calc(var(--radius) - 4px);
    overflow: hidden;
    background: var(--card);
    box-shadow: var(--shadow);
    margin-top: var(--space-3);
}

.page-projects .embed iframe {
    width: 100%;
    aspect-ratio: 4 / 3;
    display: block;
}

/* -----------------------------
   Contact page
------------------------------ */

.page-contact .contact-form {
    display: grid;
    gap: var(--space-4);
}

.page-contact .form-group {
    display: grid;
    gap: 6px;
}

.page-contact input,
.page-contact textarea {
    padding: 12px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--text);
    font: inherit;
}

.page-contact input:focus,
.page-contact textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

body.dark .page-contact input:focus,
body.dark .page-contact textarea:focus {
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.25);
}