/* ==========================================================================
   bartnijssen.com — Design System v2
   ========================================================================== */

/* --- Custom Properties --- */
:root {
  /* Colors */
  --color-bg: #fafafa;
  --color-text: #2d2d2d;
  --color-text-light: #6b6b6b;
  --color-accent: #8AB9D1;
  --color-accent-dark: #24536B;
  --color-border: #e4e4e4;
  --color-footer-bg: #2d2d2d;
  --color-footer-text: rgba(255, 255, 255, 0.5);

  /* Typography */
  --font-serif: "Crimson Text", "Georgia", serif;
  --font-sans: "Inter", "Helvetica Neue", "Arial", sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  /* Layout */
  --max-width: 640px;
  --header-max-width: 960px;
}

/* --- Reset --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* --- Base --- */
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-serif);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --- Typography --- */
h1,
h2,
h3,
h4,
h5 {
  font-family: var(--font-serif);
  line-height: 1.25;
  font-weight: 400;
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
}

h2 {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
}

h3 {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
}

p {
  font-size: clamp(1rem, 2vw, 1.15rem);
  line-height: 1.75;
  margin-bottom: var(--space-md);
}

a {
  color: var(--color-accent-dark);
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-underline-offset: 3px;
  transition: text-decoration-color 0.25s ease;
}

a:hover {
  text-decoration-color: var(--color-accent-dark);
}

strong {
  font-weight: 700;
}

em {
  font-style: italic;
}

small {
  font-size: 0.85rem;
}

/* --- Layout --- */
.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

main {
  flex: 1;
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-xl);
}

/* --- Header --- */
.site-header {
  padding: var(--space-md) 0;
  position: relative;
  z-index: 100;
}

.site-header .wrap {
  max-width: var(--header-max-width);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header .site-title {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
}

.site-header .site-title a {
  color: inherit;
  text-decoration: none;
}

.site-header .site-title a:hover {
  color: var(--color-accent);
}

.site-nav {
  display: flex;
  gap: var(--space-md);
  list-style: none;
}

.site-nav a {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text);
  text-decoration: none;
  position: relative;
}

.site-nav a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

.site-nav a:hover {
  color: var(--color-accent-dark);
}

.site-nav a:hover::after {
  width: 100%;
}

.site-nav a[aria-current="page"] {
  color: var(--color-accent-dark);
}

.site-nav a[aria-current="page"]::after {
  width: 100%;
  background: var(--color-accent-dark);
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: var(--color-text);
  line-height: 1;
}

/* --- Page Header --- */
.page-header {
  margin-bottom: var(--space-xl);
}

.page-header h1 {
  margin-bottom: var(--space-xs);
}

.tagline {
  font-family: var(--font-sans);
  font-size: clamp(0.85rem, 2vw, 0.95rem);
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
  margin-bottom: var(--space-lg);
}

.tagline span {
  margin: 0 0.3em;
  opacity: 0.4;
}

/* --- Context line --- */
.context {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

/* --- Now page --- */
.now-intro {
  font-style: italic;
  color: var(--color-text-light);
  margin-bottom: var(--space-xl);
}

.now-list {
  list-style: none;
}

.now-item {
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.now-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.now-item h3 {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-light);
  margin-bottom: var(--space-xs);
}

.now-item p {
  margin-bottom: var(--space-sm);
  font-size: 1.05rem;
  position: relative;
  padding-left: 1rem;
}

.now-item p:last-child {
  margin-bottom: 0;
}

.now-item p::before {
  content: "•";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-text-light);
  opacity: 0.4;
}

.update-date {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

/* --- Schrijven page --- */
.schrijven-intro {
  margin-bottom: var(--space-xl);
}

.article-card {
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  margin-bottom: var(--space-md);
  transition: border-color 0.25s ease;
}

.article-card:hover {
  border-color: var(--color-accent);
}

.article-card h3 {
  font-size: 1.15rem;
  margin-bottom: var(--space-xs);
}

.article-card h3 a {
  color: var(--color-text);
}

.article-card h3 a:hover {
  color: var(--color-accent-dark);
}

.article-card p {
  font-size: 0.95rem;
  color: var(--color-text-light);
  margin-bottom: 0;
  line-height: 1.5;
}

/* --- Contact --- */
.contact-text {
  margin-bottom: var(--space-lg);
}

.contact-aside {
  font-size: 0.95rem;
  color: var(--color-text-light);
  font-style: italic;
}

.contact-links {
  list-style: none;
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

.contact-links li {
  font-size: 0.95rem;
  margin-bottom: var(--space-xs);
}

/* --- Footer --- */
.site-footer {
  background: var(--color-footer-bg);
  padding: var(--space-sm) 0;
  text-align: center;
}

.site-footer small {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-footer-text);
}

.site-footer a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
}

.site-footer a:hover {
  color: rgba(255, 255, 255, 0.9);
}

/* --- 404 --- */
.error-page {
  text-align: center;
  padding: var(--space-2xl) 0;
}

.error-page h1 {
  font-size: clamp(4rem, 10vw, 8rem);
  color: var(--color-border);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.error-page p {
  font-size: 1.1rem;
  color: var(--color-text-light);
}

.error-page a {
  color: var(--color-accent-dark);
}

/* --- Responsive --- */
@media (max-width: 680px) {
  .menu-toggle {
    display: block;
    margin-left: auto;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-footer-bg);
    padding: var(--space-sm) 0;
    gap: 0;
  }

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

  .site-nav a {
    display: block;
    padding: var(--space-sm) var(--space-md);
    color: rgba(255, 255, 255, 0.9);
    text-align: right;
  }

  .site-nav a::after {
    display: none;
  }

  .site-nav a:hover {
    background: var(--color-accent);
    color: white;
  }

  main {
    padding-top: var(--space-xl);
  }
}