/*
Theme Name: VW Portfolio
Theme URI: https://victorwitkamp.nl
Author: Victor Witkamp
Description: Persoonlijke portfolio-website van Victor Witkamp. Snel, toegankelijk, licht/donker, volledig beheerbaar vanuit WordPress (Ervaring, Projecten, Certificeringen als eigen berichttypes).
Version: 1.0.0
Requires at least: 6.0
Tested up to: 7.1
Requires PHP: 8.1
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: vw-portfolio
*/

/* ---------- Tokens ---------- */
:root {
  --bg: #f6f7fb;
  --bg-2: #ffffff;
  --bg-3: #eef1f7;
  --ink: #0f172a;
  --ink-2: #334155;
  --muted: #64748b;
  --line: #e2e8f0;
  --accent: #1d4ed8;
  --accent-2: #0ea5e9;
  --accent-ink: #ffffff;
  --accent-soft: #dbeafe;
  --warm: #f59e0b;
  --shadow: 0 1px 2px rgba(15,23,42,.06), 0 12px 32px -16px rgba(15,23,42,.18);
  --radius: 16px;
  --radius-s: 10px;
  --max: 1120px;
  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Code", "JetBrains Mono", Consolas, monospace;
  --logo-filter: none;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #0b1020;
  --bg-2: #111a2e;
  --bg-3: #172138;
  --ink: #e6ecf7;
  --ink-2: #c3cde0;
  --muted: #8b9bb8;
  --line: #22304b;
  --accent: #60a5fa;
  --accent-2: #38bdf8;
  --accent-ink: #061024;
  --accent-soft: #15284a;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 16px 40px -20px rgba(0,0,0,.7);
  --logo-filter: invert(1);
  color-scheme: dark;
}

/* ---------- Base ---------- */
*,*::before,*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.65 var(--font); font-feature-settings: "cv11","ss01";
  -webkit-font-smoothing: antialiased;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
h1,h2,h3,h4 { line-height: 1.15; letter-spacing: -.02em; margin: 0 0 .5em; font-weight: 700; color: var(--ink); }
h1 { font-size: clamp(2.1rem, 5vw, 3.6rem); letter-spacing: -.03em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }
code, pre { font-family: var(--mono); font-size: .92em; }
.screen-reader-text { position:absolute!important; clip:rect(1px,1px,1px,1px); width:1px; height:1px; overflow:hidden; }
.skip-link:focus { position:fixed; top:8px; left:8px; z-index:1000; padding:.6rem 1rem; background:var(--accent); color:var(--accent-ink); border-radius:8px; clip:auto; width:auto; height:auto; }
:focus-visible { outline: 3px solid var(--accent-2); outline-offset: 3px; border-radius: 6px; }

.wrap { width: min(var(--max), 100% - 2.5rem); margin-inline: auto; }
.section { padding-block: clamp(3.5rem, 8vw, 6.5rem); }
.section + .section { border-top: 1px solid var(--line); }
.section-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 1rem 2rem; margin-bottom: 2.2rem; }
.section-head p { color: var(--muted); max-width: 56ch; margin: 0; }
.eyebrow { display: inline-flex; align-items: center; gap: .5rem; font-size: .78rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); margin-bottom: .6rem; }
.eyebrow::before { content: ""; width: 22px; height: 2px; background: currentColor; border-radius: 2px; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: .55rem; padding: .8rem 1.25rem; border-radius: 999px; font-weight: 600; font-size: .95rem; line-height: 1; border: 1px solid transparent; transition: transform .15s, box-shadow .15s, background .15s; white-space: nowrap; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 8px 20px -10px var(--accent); }
.btn-ghost { background: var(--bg-2); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--accent); }
.btn svg { width: 18px; height: 18px; }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; backdrop-filter: saturate(160%) blur(12px); -webkit-backdrop-filter: saturate(160%) blur(12px); background: color-mix(in srgb, var(--bg) 80%, transparent); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: .7rem; color: var(--ink); font-weight: 700; letter-spacing: -.01em; }
.brand:hover { text-decoration: none; }
.brand img { height: 26px; width: auto; filter: var(--logo-filter); }
.brand span small { display: block; font-size: .72rem; font-weight: 500; color: var(--muted); letter-spacing: .02em; }
.nav-links { display: flex; align-items: center; gap: .25rem; list-style: none; margin: 0; padding: 0; }
.nav-links a { display: inline-block; padding: .5rem .8rem; border-radius: 8px; color: var(--ink-2); font-weight: 500; font-size: .95rem; }
.nav-links a:hover { color: var(--ink); background: var(--bg-3); text-decoration: none; }
.nav-tools { display: flex; align-items: center; gap: .4rem; }
.icon-btn { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg-2); color: var(--ink); cursor: pointer; }
.icon-btn svg { width: 18px; height: 18px; }
.only-light, .only-dark { display: inline-grid; }
.only-dark { display: none; }
:root[data-theme="dark"] .only-dark { display: inline-grid; }
:root[data-theme="dark"] .only-light { display: none; }
.nav-toggle { display: none; }
@media (max-width: 860px) {
  .nav-toggle { display: inline-grid; }
  .nav-links { display: none; position: absolute; inset: 68px 0 auto 0; flex-direction: column; align-items: stretch; padding: .75rem 1.25rem 1.25rem; background: var(--bg); border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: .8rem .9rem; font-size: 1.05rem; }
  .nav-links .btn { margin-top: .5rem; justify-content: center; }
}

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding-block: clamp(4rem, 10vw, 7.5rem) clamp(3rem, 8vw, 6rem); }
.hero::before { content: ""; position: absolute; inset: -20% -10% auto; height: 120%; background:
  radial-gradient(60% 50% at 20% 10%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 70%),
  radial-gradient(40% 40% at 85% 20%, color-mix(in srgb, var(--accent-2) 16%, transparent), transparent 70%);
  pointer-events: none; }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.3fr .9fr; gap: 3rem; align-items: center; }
.hero h1 { margin-bottom: 1rem; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .lead { font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--ink-2); max-width: 56ch; margin-bottom: 1.8rem; }
.hero-cta { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; }
.hero-meta { display: flex; flex-wrap: wrap; gap: .5rem 1.2rem; margin-top: 1.8rem; color: var(--muted); font-size: .92rem; }
.hero-meta span { display: inline-flex; align-items: center; gap: .4rem; }
.hero-meta svg { width: 16px; height: 16px; }
.hero-card { position: relative; background: var(--bg-2); border: 1px solid var(--line); border-radius: 24px; padding: 1.5rem; box-shadow: var(--shadow); }
.hero-card .photo { aspect-ratio: 1; border-radius: 18px; overflow: hidden; background: linear-gradient(135deg, var(--accent-soft), var(--bg-3)); display: grid; place-items: center; }
.hero-card .photo img { width: 100%; height: 100%; object-fit: cover; }
.hero-card .photo .mark { width: 40%; filter: var(--logo-filter); opacity: .82; }
.hero-card ul { list-style: none; margin: 1.1rem 0 0; padding: 0; display: grid; gap: .5rem; }
.hero-card li { display: flex; justify-content: space-between; gap: 1rem; font-size: .92rem; padding: .35rem 0; border-top: 1px dashed var(--line); }
.hero-card li:first-child { border-top: 0; }
.hero-card li span:first-child { color: var(--muted); }
.hero-card li span:last-child { font-weight: 600; text-align: right; }
.badge-live { display: inline-flex; align-items: center; gap: .45rem; font-size: .8rem; font-weight: 600; color: #15803d; background: #dcfce7; padding: .35rem .7rem; border-radius: 999px; }
:root[data-theme="dark"] .badge-live { color: #86efac; background: #14532d; }
.badge-live::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; box-shadow: 0 0 0 4px color-mix(in srgb, currentColor 25%, transparent); }
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-card { max-width: 420px; }
}

/* ---------- Stats strip ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-top: clamp(2.5rem, 6vw, 4rem); }
.stat { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem 1.25rem; }
.stat b { display: block; font-size: 1.8rem; letter-spacing: -.03em; color: var(--ink); line-height: 1.1; }
.stat span { color: var(--muted); font-size: .9rem; }
@media (max-width: 760px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 3rem; align-items: start; }
.prose { font-size: 1.05rem; color: var(--ink-2); }
.prose p:last-child { margin-bottom: 0; }
.prose h2, .prose h3 { margin-top: 1.6em; }
.prose ul { padding-left: 1.2em; }
.skills { display: grid; gap: 1rem; }
.skill-group { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem 1.25rem; }
.skill-group h3 { font-size: .85rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin-bottom: .7rem; }
.chips { display: flex; flex-wrap: wrap; gap: .45rem; }
.chip { font-size: .85rem; font-weight: 500; padding: .35rem .7rem; border-radius: 999px; background: var(--bg-3); color: var(--ink-2); border: 1px solid var(--line); }
@media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; } }

/* ---------- Timeline ---------- */
.timeline { position: relative; display: grid; gap: 1.25rem; }
.tl-item { display: grid; grid-template-columns: 180px 1fr; gap: 1.5rem; position: relative; }
.tl-when { color: var(--muted); font-size: .9rem; font-weight: 600; padding-top: 1.3rem; font-variant-numeric: tabular-nums; }
.tl-card { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem 1.4rem; position: relative; transition: border-color .2s, transform .2s; }
.tl-card:hover { border-color: var(--accent); }
.tl-card::before { content: ""; position: absolute; left: -1.05rem; top: 1.55rem; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.tl-item.current .tl-card::before { background: #22c55e; box-shadow: 0 0 0 4px #dcfce7; }
:root[data-theme="dark"] .tl-item.current .tl-card::before { box-shadow: 0 0 0 4px #14532d; }
.tl-card h3 { margin-bottom: .15rem; }
.tl-card .org { color: var(--ink-2); font-weight: 500; }
.tl-card .org small { color: var(--muted); font-weight: 400; }
.tl-card p { margin: .8rem 0 0; color: var(--ink-2); }
.tl-card .chips { margin-top: .9rem; }
@media (max-width: 760px) {
  .tl-item { grid-template-columns: 1fr; gap: .25rem; }
  .tl-when { padding-top: 0; }
  .tl-card::before { display: none; }
}

/* ---------- Cards grid ---------- */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.card { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.35rem; display: flex; flex-direction: column; gap: .6rem; transition: transform .2s, box-shadow .2s, border-color .2s; position: relative; }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--accent); }
.card h3 { margin: 0; }
.card h3 a { color: var(--ink); }
.card h3 a::after { content: ""; position: absolute; inset: 0; }
.card p { color: var(--ink-2); margin: 0; flex: 1; }
.card .meta { display: flex; align-items: center; gap: .6rem; font-size: .85rem; color: var(--muted); }
.card .meta .lang { display: inline-flex; align-items: center; gap: .35rem; }
.card .meta .lang i { width: 10px; height: 10px; border-radius: 50%; background: var(--accent-2); display: inline-block; }
.card .chips { margin-top: .2rem; }
.card-top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.card-top svg { width: 22px; height: 22px; color: var(--muted); }
.cert-card { flex-direction: row; align-items: center; gap: 1rem; }
.cert-card img { width: 64px; height: 64px; object-fit: contain; flex: none; }
.cert-card .cert-icon { width: 56px; height: 56px; border-radius: 14px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); flex: none; }
.cert-card .cert-icon svg { width: 26px; height: 26px; }
.cert-card h3 { font-size: 1.02rem; }
.cert-card .meta { margin-top: .15rem; }
@media (max-width: 960px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid { grid-template-columns: 1fr; } }

/* ---------- Blog list ---------- */
.post-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.post-card time { font-size: .85rem; color: var(--muted); }
@media (max-width: 960px) { .post-list { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .post-list { grid-template-columns: 1fr; } }

/* ---------- Contact ---------- */
.contact { background: linear-gradient(135deg, var(--ink), #1e293b); color: #e6ecf7; border-radius: 28px; padding: clamp(2rem, 5vw, 3.5rem); display: grid; grid-template-columns: 1.2fr .8fr; gap: 2rem; align-items: center; position: relative; overflow: hidden; }
:root[data-theme="dark"] .contact { background: linear-gradient(135deg, #142043, #0e1a36); border: 1px solid var(--line); }
.contact::after { content: ""; position: absolute; right: -10%; top: -40%; width: 50%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--accent-2) 35%, transparent), transparent 70%); pointer-events: none; }
.contact h2 { color: #fff; }
.contact p { color: #c3cde0; max-width: 50ch; }
.contact .links { display: grid; gap: .6rem; position: relative; }
.contact .links a { display: flex; align-items: center; gap: .8rem; padding: .9rem 1.1rem; border-radius: 14px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); color: #fff; font-weight: 600; transition: background .15s; }
.contact .links a:hover { background: rgba(255,255,255,.14); text-decoration: none; }
.contact .links svg { width: 22px; height: 22px; flex: none; }
.contact .links small { display: block; font-weight: 400; color: #aab8d0; font-size: .82rem; }
@media (max-width: 860px) { .contact { grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 2rem 0 2.5rem; color: var(--muted); font-size: .9rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; }
.site-footer nav a { color: var(--muted); margin-left: 1rem; }
.site-footer img { height: 20px; width: auto; filter: var(--logo-filter); opacity: .7; }

/* ---------- Inner pages ---------- */
.page-hero { padding-block: clamp(3rem, 7vw, 5rem) 2rem; }
.page-hero h1 { margin-bottom: .4rem; }
.page-hero .meta { color: var(--muted); }
.entry { max-width: 72ch; }
.entry .prose img { border-radius: var(--radius-s); }
.entry .prose blockquote { border-left: 3px solid var(--accent); margin: 1.5em 0; padding: .2em 0 .2em 1.2em; color: var(--ink-2); }
.entry .prose pre { background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius-s); padding: 1rem; overflow: auto; }
.entry .prose table { border-collapse: collapse; width: 100%; }
.entry .prose td, .entry .prose th { border: 1px solid var(--line); padding: .5rem .7rem; }
.wp-block-image img, .alignfull, .alignwide { max-width: 100%; }
.pagination { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: 2rem; }
.pagination .page-numbers { padding: .5rem .85rem; border: 1px solid var(--line); border-radius: 8px; background: var(--bg-2); color: var(--ink-2); }
.pagination .page-numbers.current { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.post-nav { display: flex; justify-content: space-between; gap: 1rem; margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--line); }
.meta-table { display: grid; grid-template-columns: max-content 1fr; gap: .4rem 1.2rem; margin: 1.5rem 0; padding: 1.1rem 1.25rem; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); }
.meta-table dt { color: var(--muted); font-size: .9rem; margin: 0; }
.meta-table dd { margin: 0; font-weight: 500; }
.search-form { display: flex; gap: .5rem; max-width: 460px; }
.search-form input[type=search] { flex: 1; padding: .75rem 1rem; border: 1px solid var(--line); border-radius: 10px; background: var(--bg-2); color: var(--ink); font: inherit; }
.search-form button { padding: .75rem 1.1rem; border-radius: 10px; border: 0; background: var(--accent); color: var(--accent-ink); font: inherit; font-weight: 600; cursor: pointer; }

/* ---------- Reveal ---------- */
.rv { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .rv { opacity: 1; transform: none; transition: none; } }