/* ════════════════════════════════════════════════════════
   krebsdesign — Shared Styles
   Base resets, nav, footer — loaded on every page via header.php
   ════════════════════════════════════════════════════════ */

/* ── BASE RESET ────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  padding-top: 80px;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3, strong { font-weight: var(--fw-bold); }

/* Dark mode: use auto-generated dark variant of custom section backgrounds */
[data-theme="dark"] .has-custom-bg { background: var(--section-bg-dark) !important; }

/* ── NAV (teenage.engineering style: two-line, always visible) ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(245,245,245,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-rule);
}
[data-theme="dark"] nav { background: rgba(24,24,24,0.96); }

.nav-bar {
  display: flex; align-items: flex-start;
  padding: 12px 48px 10px;
  gap: 40px;
}

/* ── BRAND ────────────────────────────────────────────── */
.nav-brand { display: flex; align-items: center; gap: var(--space-3); flex-shrink: 0; padding-top: 2px; }
.nav-logo-mark { flex-shrink: 0; display: flex; align-items: center; color: var(--color-accent); }
.nav-logo-mark svg { display: block; width: 100%; height: 100%; }
.nav-wordmark {
  font-family: var(--font-sans); font-size: var(--text-sm); font-weight: var(--fw-bold);
  letter-spacing: 0.04em; color: var(--color-ink); text-transform: lowercase;
}
/* Writer "italic" → Light-Gewicht (300) statt echtes Italic */
.nav-wordmark em, .nav-wordmark i { font-style: normal; font-weight: 300; }
.nav-badge {
  font-family: var(--font-sans); font-size: var(--text-xs); letter-spacing: 0.06em;
  color: var(--color-ink-3); border: 1px solid var(--color-rule-solid);
  border-radius: var(--radius-pill); padding: 2px 8px; text-transform: lowercase;
}

/* ── NAV GROUPS (columns, always visible) ─────────────── */
.nav-groups {
  display: flex; gap: var(--space-6); flex: 1; justify-content: flex-start;
  padding-left: var(--space-5);
}

/* ── NAV COLUMN: text left + icon right (teen.eng. style) ── */
.nav-col {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: var(--space-3);
}

.nav-col-text { display: flex; flex-direction: column; }

.nav-col-label {
  font-family: var(--font-sans); font-size: var(--text-sm); font-weight: var(--fw-semibold);
  letter-spacing: 0.06em; text-transform: lowercase;
  color: var(--color-ink);
  display: block;
  line-height: 1;
  margin-bottom: 5px;
  transition: color var(--dur-fast);
}
.nav-col-label:hover { color: var(--color-accent); }

/* Group icon — left of text */
.nav-col-icon {
  flex-shrink: 0;
  opacity: 0.5;
  transition: opacity var(--dur-fast);
  color: var(--color-ink);
}
.nav-col:hover .nav-col-icon { opacity: 1; }
.nav-col-icon svg {
  width: var(--nav-icon-size, 32px);
  height: var(--nav-icon-size, 32px);
  display: block;
  fill: currentColor;
}
.nav-col-icon span {
  display: block;
  font-size: var(--nav-icon-size, 32px);
  line-height: 1;
}

/* Legacy .nav-icon kept for any remaining emoji usages */
.nav-icon { font-size: var(--nav-icon-size, 32px); line-height: 1; }

.nav-col-links {
  display: flex; flex-direction: column; gap: 3px;
}
.nav-col-links a {
  font-family: var(--font-sans); font-size: var(--text-xs);
  letter-spacing: 0.04em; text-transform: lowercase;
  color: var(--color-ink-3);
  transition: color var(--dur-fast);
  line-height: 1;
  white-space: nowrap;
}
.nav-col-links a:hover { color: var(--color-accent); }

/* ── NAV UTILITIES ────────────────────────────────────── */
.nav-utils { display: flex; align-items: center; gap: 20px; flex-shrink: 0; margin-left: auto; padding-top: 2px; }

.lang-switch { display: flex; align-items: center; gap: 6px; }
.lang-btn {
  font-family: var(--font-sans); font-size: var(--text-sm); letter-spacing: 0.08em;
  color: var(--color-ink-3); background: none; border: none;
  cursor: pointer; transition: color var(--dur-fast); text-decoration: none;
}
.lang-btn:hover, .lang-btn.active { color: var(--color-ink); }
.lang-sep { color: var(--color-ink-3); font-size: var(--text-sm); }

.nav-dark-toggle {
  width: 32px; height: 32px;
  border: 1px solid var(--color-rule-solid); background: transparent;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: all var(--dur-fast); color: var(--color-ink-3);
}
.nav-dark-toggle:hover { border-color: var(--color-ink); color: var(--color-ink); }

.nav-cta {
  font-family: var(--font-sans); font-size: var(--text-sm); letter-spacing: 0.1em;
  text-transform: lowercase;
  background: var(--color-accent); color: var(--color-surface);
  border: none; cursor: pointer;
  padding: 8px 20px; transition: background var(--dur-fast); text-decoration: none;
}
.nav-cta:hover { background: var(--color-ink); }

/* ── HAMBURGER BUTTON ─────────────────────────────────── */
.nav-hamburger {
  display: none;
  width: 32px; height: 32px;
  background: none; border: 1px solid var(--color-rule-solid);
  cursor: pointer; position: relative;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.nav-hamburger span {
  display: block; width: 16px; height: 1.5px;
  background: var(--color-ink); transition: all 0.25s ease;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── MOBILE MENU OVERLAY ─────────────────────────────── */
.nav-mobile-menu {
  display: none;
  position: fixed; top: 80px; left: 0; right: 0; bottom: 0;
  background: var(--color-bg);
  z-index: 99;
  flex-direction: column;
  padding: 24px;
  overflow-y: auto;
}
[data-theme="dark"] .nav-mobile-menu { background: var(--color-bg); }
.nav-mobile-menu.open { display: flex; }

.mobile-nav-group { border-bottom: 1px solid var(--color-rule); }
.mobile-nav-label {
  display: flex; align-items: center; gap: var(--space-2);
  font-family: var(--font-sans); font-size: var(--text-base); font-weight: var(--fw-semibold);
  letter-spacing: 0.06em; text-transform: lowercase;
  color: var(--color-ink); padding: 16px 0 8px;
}
.mobile-nav-children { display: flex; flex-direction: column; padding-bottom: var(--space-3); }
.mobile-nav-children a {
  font-family: var(--font-sans); font-size: var(--text-sm); letter-spacing: 0.04em;
  color: var(--color-ink-2); padding: 8px 0 8px 24px;
  text-transform: lowercase;
  transition: color var(--dur-fast);
}
.mobile-nav-children a:hover { color: var(--color-accent); }

.nav-mobile-footer {
  margin-top: auto; padding-top: var(--space-5);
  display: flex; align-items: center; gap: var(--space-4);
}
.nav-mobile-footer a {
  font-family: var(--font-sans); font-size: var(--text-sm);
  color: var(--color-accent); border: none;
}

/* ── FOOTER ────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--color-rule);
  margin-top: var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(auto-fit, 1fr);
  gap: var(--space-7);
  padding: 56px 48px 40px;
  border-bottom: 1px solid var(--color-rule);
}

.footer-brand {}
.footer-logo {
  font-family: var(--font-sans); font-size: var(--text-base); font-weight: var(--fw-bold);
  letter-spacing: 0.04em; text-transform: lowercase;
  margin-bottom: var(--space-2);
}
.footer-tagline {
  font-family: var(--font-sans); font-size: var(--text-xs); letter-spacing: 0.12em;
  text-transform: var(--text-xs-transform, uppercase); color: var(--color-ink-3);
  margin-bottom: var(--space-5);
}
.footer-socials { display: flex; gap: var(--space-4); }
.footer-social-link {
  font-family: var(--font-sans); font-size: var(--text-sm); letter-spacing: 0.04em;
  color: var(--color-ink-2);
  display: flex; align-items: center; gap: var(--space-1);
  transition: color var(--dur-fast);
}
.footer-social-link:hover { color: var(--color-accent); }
.footer-social-icon { font-size: 12px; }

.footer-col {}
.footer-col-title {
  font-family: var(--font-sans); font-size: var(--text-xs); font-weight: var(--fw-semibold);
  letter-spacing: 0.14em; text-transform: var(--text-xs-transform, uppercase);
  color: var(--color-ink-3);
  margin-bottom: var(--space-4);
}
.footer-col-links { display: flex; flex-direction: column; gap: 10px; }
.footer-col-links a {
  font-family: var(--font-sans); font-size: 12px; letter-spacing: 0.04em;
  color: var(--color-ink-2);
  transition: color var(--dur-fast);
  text-transform: lowercase;
}
.footer-col-links a:hover { color: var(--color-accent); }

.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 48px;
}
.footer-copyright {
  font-family: var(--font-sans); font-size: var(--text-sm); font-weight: 500;
  letter-spacing: 0.04em;
}
.footer-bottom-links { display: flex; gap: var(--space-5); }
.footer-bottom-links a {
  font-family: var(--font-sans); font-size: var(--text-xs);
  color: var(--color-ink-3); transition: color var(--dur-fast);
}
.footer-bottom-links a:hover { color: var(--color-ink); }

/* ── RESPONSIVE ────────────────────────────────────────── */

/* Tablet */
@media (max-width: 1024px) {
  .nav-bar { padding: 12px 24px 10px; gap: var(--space-5); }
  .nav-groups { gap: 20px; padding-left: var(--space-3); }
  .nav-cta { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-6); padding: 40px 24px; }
  .footer-bottom { padding: 16px 24px; }
}

/* Mobile */
@media (max-width: 768px) {
  .nav-bar { padding: 12px 16px 10px; }
  .nav-groups { display: none; }
  .nav-badge { display: none; }
  .nav-cta { display: none; }
  .nav-hamburger { display: flex; }

  .footer-grid { grid-template-columns: 1fr; gap: var(--space-6); padding: 32px 24px; }
  .footer-bottom {
    padding: 16px 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
}