/* ════════════════════════════════════════════════════════
   krebsdesign — Shared Styles · Variante D "Systematic Editorial"
   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);
  font-weight: var(--fw-regular);
  -webkit-font-smoothing: antialiased;
  padding-top: 96px;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-weight: var(--fw-display); letter-spacing: -0.01em; }
strong { font-weight: var(--fw-semibold); }

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

/* ── NAV (Variante D: single thin editorial line) ───────── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-rule);
}
[data-theme="dark"] nav { background: rgba(17,17,17,0.92); }

.nav-bar {
  display: flex; align-items: center;
  padding: 16px 48px;
  gap: 40px;
}

/* ── BRAND ────────────────────────────────────────────── */
.nav-brand { display: flex; align-items: center; gap: var(--space-3); flex-shrink: 0; }
.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: 0.02em; color: var(--color-ink); text-transform: none;
}
.nav-wordmark em, .nav-wordmark i { font-style: normal; font-weight: var(--fw-light); }
/* Tagline → flat editorial meta (no badge box) */
.nav-badge {
  font-family: var(--font-sans); font-size: var(--text-xs);
  letter-spacing: var(--tracking-label); text-transform: uppercase;
  color: var(--color-ink-3); border: none; border-radius: 0; padding: 0;
  white-space: nowrap;
}

/* ── NAV GROUPS (single-line numbered editorial labels) ── */
.nav-groups {
  display: flex; gap: var(--space-7); flex: 1;
  justify-content: center;
  padding-left: var(--space-5);
  counter-reset: navnum;
}
.nav-col { display: flex; flex-direction: row; align-items: center; gap: var(--space-2); counter-increment: navnum; }
/* Numbered editorial label (01 PROJECTS …) — number prefix in accent mono */
.nav-col-label::before {
  content: counter(navnum, decimal-leading-zero);
  margin-right: var(--space-2);
  font-family: var(--font-mono); color: var(--color-accent);
  letter-spacing: 0;
}
/* Variante D nav carries no icons or dropdowns */
.nav-col-icon { display: none; }
.nav-col-links { display: none; }
.nav-col-text { display: flex; flex-direction: column; }
.nav-col-label {
  font-family: var(--font-sans); font-size: var(--text-xs); font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-label); text-transform: uppercase;
  color: var(--color-ink);
  display: block; line-height: 1; margin-bottom: 0;
  transition: color var(--dur-fast);
}
.nav-col-label:hover { color: var(--color-accent); }

/* Legacy emoji icon (unused in D) */
.nav-icon { display: none; }

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

.lang-switch { display: flex; align-items: center; gap: 6px; }
.lang-btn {
  font-family: var(--font-sans); font-size: var(--text-xs); letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  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-rule-hair); font-size: var(--text-xs); }

.nav-dark-toggle {
  width: 28px; height: 28px;
  border: 1px solid var(--color-rule-hair); 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); }

/* CTA → editorial "open for work" text with red status dot */
.nav-cta {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-family: var(--font-sans); font-size: var(--text-xs); font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-label); text-transform: uppercase;
  background: transparent; color: var(--color-ink);
  border: none; cursor: pointer; padding: 0;
  transition: color var(--dur-fast); text-decoration: none;
}
.nav-cta::before {
  content: ""; width: 7px; height: 7px; border-radius: var(--radius-round);
  background: var(--color-accent); flex-shrink: 0;
}
.nav-cta:hover { color: var(--color-accent); }

/* ── HAMBURGER BUTTON ─────────────────────────────────── */
.nav-hamburger {
  display: none;
  width: 28px; height: 28px;
  background: none; border: 1px solid var(--color-rule-hair);
  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: 96px; 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; }
.nav-mobile-menu { counter-reset: mnavnum; }
.mobile-nav-group { counter-increment: mnavnum; }
.mobile-nav-label::before {
  content: counter(mnavnum, decimal-leading-zero);
  margin-right: var(--space-3);
  font-family: var(--font-mono); font-size: var(--text-sm);
  color: var(--color-accent);
}

.mobile-nav-group { border-bottom: 1px solid var(--color-rule); }
.mobile-nav-group-header { display: flex; align-items: center; gap: var(--space-2); }
.mobile-nav-icon { display: none; }
.mobile-nav-label {
  display: flex; align-items: center; gap: var(--space-2);
  font-family: var(--font-sans); font-size: var(--text-lg); font-weight: var(--fw-light);
  letter-spacing: -0.01em; text-transform: none;
  color: var(--color-ink); padding: 16px 0 12px;
}
.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-xs); letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-ink-3); padding: 8px 0 8px 4px;
  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-xs); letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-accent); border: none;
}

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

.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding: 32px 48px;
}
.footer-copyright {
  display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-3);
  font-family: var(--font-sans); font-size: var(--text-xs); font-weight: var(--fw-regular);
  letter-spacing: 0.02em; color: var(--color-ink-3);
}
.footer-brand { display: inline-flex; align-items: center; gap: var(--space-2); }
.footer-logo-mark { display: inline-flex; align-items: center; color: var(--color-accent); }
.footer-logo-mark svg { height: 18px; width: auto; display: block; }
.footer-wordmark {
  font-size: var(--text-sm); font-weight: var(--fw-semibold); color: var(--color-ink);
  letter-spacing: -0.01em;
}
.footer-wordmark em { font-style: normal; font-weight: var(--fw-light); }
.footer-meta { color: var(--color-ink-3); }
.footer-bottom-links { display: flex; gap: var(--space-6); }
.footer-bottom-links a {
  font-family: var(--font-sans); font-size: var(--text-xs); letter-spacing: 0.02em;
  color: var(--color-ink-3); transition: color var(--dur-fast);
}
.footer-bottom-links a:hover { color: var(--color-ink); }
.footer-bottom-links .footer-top:hover { color: var(--color-accent); }

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

/* Tablet */
@media (max-width: 1024px) {
  .nav-bar { padding: 14px 24px; gap: var(--space-5); }
  .nav-groups { gap: var(--space-5); padding-left: var(--space-3); }
  .nav-cta { display: none; }
  .footer-bottom { padding: 24px; }
}

/* Mobile */
@media (max-width: 768px) {
  body { padding-top: 64px; }
  .nav-bar { padding: 12px 16px; }
  .nav-groups { display: none; }
  /* Tagline hides on mobile only when a wordmark carries the brand;
     if no wordmark is set, the tagline IS the brand and must stay visible */
  .nav-brand:has(.nav-wordmark) .nav-badge { display: none; }
  .nav-cta { display: none; }
  .lang-switch { display: none; }
  .nav-hamburger { display: flex; }
  .nav-mobile-menu { top: 64px; }

  .footer-bottom {
    padding: 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
}