/*
Theme Name: campusA Tagung
Theme URI: https://www.campusa.de
Author: campusA Stuttgart
Author URI: https://www.campusa.de
Description: Maßgeschneidertes WordPress-Theme für die bildungsART/bildungsFORUM Tagungsseiten des campusA Stuttgart. Sektionsbasiertes Design mit Dark-/Light-Sektionen, Parallax-Effekten, Sprecher-Karten, Fotogalerie, Partner-Raster und vollständiger Farbanpassung über den Customizer.
Version: 1.1.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: campusa
Tags: custom-colors, custom-logo, custom-menu, featured-images, full-width-template, theme-options, translation-ready, one-column, two-columns
*/

/* ═══════════════════════════════════════════════
   CSS CUSTOM PROPERTIES
   Colors are injected dynamically via wp_head()
   from Customizer settings. These are fallbacks.
   ═══════════════════════════════════════════════ */

:root {
  /* ── Injected from Customizer (see inc/customizer.php) ── */
  --color-primary: #d4913a;
  --color-primary-hover: #b8792e;
  --color-primary-bg: rgba(212, 145, 58, 0.15);
  --color-primary-border: rgba(212, 145, 58, 0.3);

  --color-dark: #0c1220;
  --color-dark-surface: #141d2f;
  --color-dark-mid: #1e2a42;
  --color-dark-lighter: #2a3a58;

  --color-light-bg: #faf6f0;
  --color-white: #fefcf9;

  /* ── Derived / Fixed ── */
  --color-text: #0c1220;
  --color-text-secondary: #3d5077;
  --color-text-muted: #7b8fad;
  --color-text-on-dark: #e8ecf4;
  --color-text-on-dark-muted: #a3b3cc;
  --color-border: #e8ecf4;

  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --container-width: 1280px;
  --section-padding: clamp(4rem, 8vw, 7rem);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}


/* ═══════════════════════════════════════════════
   RESET & BASE
   ═══════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.2;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
ul, ol { list-style: none; }
button, input, textarea, select { font-family: inherit; }


/* ═══════════════════════════════════════════════
   LAYOUT
   ═══════════════════════════════════════════════ */

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 3rem);
}


/* ═══════════════════════════════════════════════
   TOP BAR
   ═══════════════════════════════════════════════ */

.top-bar {
  background: var(--color-dark);
  color: var(--color-text-on-dark-muted);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  padding: 0.5rem 0;
}
.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.top-bar a {
  color: var(--color-text-on-dark-muted);
}
.top-bar a:hover {
  color: var(--color-primary);
}
.top-bar__social {
  display: flex;
  gap: 1rem;
}
.top-bar__social a {
  display: flex;
  align-items: center;
}
.top-bar__social svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}


/* ═══════════════════════════════════════════════
   SITE HEADER
   ═══════════════════════════════════════════════ */

.site-header {
  background: var(--color-white);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: 0 2px 20px rgba(12, 18, 32, 0.08);
}
.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.site-logo__mark {
  width: 42px;
  height: 42px;
  background: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-style: italic;
  flex-shrink: 0;
}
.site-logo img {
  max-height: 42px;
  width: auto;
}
.site-logo__text {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--color-dark-surface);
  line-height: 1.2;
}
.site-logo__tagline {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Navigation */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 101;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark-lighter);
  margin: 5px 0;
  border-radius: 2px;
  transition: var(--transition);
}

.main-nav ul {
  display: flex;
  gap: 0.25rem;
}
.main-nav li { position: relative; }
.main-nav a {
  display: block;
  padding: 0.5rem 1rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
}
.main-nav a:hover {
  color: var(--color-text);
  background: rgba(0,0,0,0.03);
}
.main-nav .current-menu-item > a,
.main-nav .current_page_item > a {
  color: var(--color-primary);
}

/* Sub-menus */
.main-nav .sub-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  min-width: 200px;
  padding: 0.5rem 0;
  z-index: 200;
}
.main-nav li:hover > .sub-menu {
  display: block;
}
.main-nav .sub-menu a {
  padding: 0.4rem 1rem;
  font-size: 0.82rem;
}


/* ═══════════════════════════════════════════════
   SECTIONS (shared)
   ═══════════════════════════════════════════════ */

.section {
  padding: var(--section-padding) 0;
}
.section--dark {
  background: var(--color-dark-surface);
  color: var(--color-text-on-dark);
}
.section--dark h1, .section--dark h2, .section--dark h3, .section--dark h4 {
  color: #fff;
}
.section--mid {
  background: var(--color-dark-mid);
  color: var(--color-text-on-dark);
}
.section--mid h1, .section--mid h2, .section--mid h3, .section--mid h4 {
  color: #fff;
}
.section--cream {
  background: var(--color-light-bg);
}
.section--parallax {
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
}

.section__header {
  text-align: center;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.section__label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}
.section__title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
}
.section__rule {
  width: 60px;
  height: 2px;
  background: var(--color-primary);
  margin: 1.25rem auto 0;
  border: none;
}


/* ═══════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════ */

.block-hero {
  position: relative;
  min-height: 55vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-dark-surface) 0%, var(--color-dark-mid) 50%, var(--color-dark-lighter) 100%);
}
.block-hero__pattern {
  position: absolute;
  inset: 0;
  opacity: 0.06;
  background-image:
    radial-gradient(circle at 20% 50%, var(--color-primary) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, var(--color-primary) 0%, transparent 40%),
    repeating-linear-gradient(45deg, transparent, transparent 40px, rgba(255,255,255,0.02) 40px, rgba(255,255,255,0.02) 80px);
  pointer-events: none;
}
.block-hero__content {
  position: relative;
  z-index: 2;
  padding: clamp(3rem, 8vw, 6rem) 0;
  width: 100%;
}
.block-hero__content .container {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: end;
}
.block-hero__badge {
  display: inline-block;
  background: var(--color-primary-bg);
  border: 1px solid var(--color-primary-border);
  color: var(--color-primary);
  padding: 0.35rem 1rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.5rem;
}
.block-hero h1 {
  color: #fff;
  font-size: clamp(2.5rem, 5vw, 4.2rem);
  margin-bottom: 0.5rem;
}
.block-hero h1 em {
  color: var(--color-primary);
  font-style: italic;
}
.block-hero__subtitle {
  color: var(--color-text-on-dark-muted);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 300;
  max-width: 560px;
  margin-top: 1rem;
}
.block-hero__meta {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-top: 1.5rem;
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}
.block-hero__meta span {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.block-hero__logo-badge {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex-shrink: 0;
}
.block-hero__logo-badge .year {
  font-family: var(--font-display);
  font-size: 2.8rem;
  color: var(--color-primary);
  line-height: 1;
}
.block-hero__logo-badge .edition {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-on-dark-muted);
  margin-top: 0.25rem;
}


/* ═══════════════════════════════════════════════
   TEXT COLUMNS
   ═══════════════════════════════════════════════ */

.intro-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(2rem, 4vw, 4rem);
}
.intro-grid p {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  line-height: 1.75;
  color: var(--color-text-secondary);
}
.section--dark .intro-grid p,
.section--mid .intro-grid p {
  color: var(--color-text-on-dark-muted);
}


/* ═══════════════════════════════════════════════
   GALLERY
   ═══════════════════════════════════════════════ */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.75rem;
}
.gallery-item {
  position: relative;
  aspect-ratio: 3/2;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-dark-mid);
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease, opacity var(--transition);
}
.gallery-item:hover img {
  transform: scale(1.05);
  opacity: 0.85;
}
.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(12,18,32,0.4) 100%);
  pointer-events: none;
}


/* ═══════════════════════════════════════════════
   QUOTE
   ═══════════════════════════════════════════════ */

.block-quote {
  position: relative;
  padding: clamp(5rem, 10vw, 8rem) 0;
  text-align: center;
}
.block-quote blockquote {
  max-width: 700px;
  margin: 0 auto;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-style: italic;
  line-height: 1.55;
}
.section--dark .block-quote blockquote {
  color: var(--color-text-on-dark);
}
.block-quote cite {
  display: block;
  margin-top: 1.5rem;
  font-family: var(--font-body);
  font-style: normal;
  font-size: 0.85rem;
  color: var(--color-primary);
  letter-spacing: 0.04em;
}


/* ═══════════════════════════════════════════════
   SPEAKERS
   ═══════════════════════════════════════════════ */

.speakers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 2rem;
}
.speaker-card {
  text-align: center;
}
.speaker-card__photo {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  margin: 0 auto 1.25rem;
  overflow: hidden;
  background: var(--color-dark-lighter);
  border: 3px solid var(--color-primary-border);
}
.speaker-card__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.speaker-card__photo-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  font-family: var(--font-display);
  color: var(--color-text-muted);
}
.speaker-card__name {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--color-text-on-dark-muted);
  margin-bottom: 0.5rem;
}
.speaker-card__topic {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: #fff;
  line-height: 1.35;
}


/* ═══════════════════════════════════════════════
   RESOURCES / DOWNLOADS
   ═══════════════════════════════════════════════ */

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}
.resource-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 2rem 1.5rem;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  transition: all var(--transition);
  text-align: center;
}
.resource-btn:hover {
  background: var(--color-primary-bg);
  border-color: var(--color-primary-border);
  transform: translateY(-2px);
}
.resource-btn__icon {
  font-size: 1.8rem;
}
.resource-btn__label {
  font-weight: 500;
  font-size: 0.9rem;
  color: #fff;
}
.resource-btn__desc {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}


/* ═══════════════════════════════════════════════
   PARTNERS / SPONSORS
   ═══════════════════════════════════════════════ */

.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 1.5rem;
  max-width: 800px;
  margin: 0 auto;
}
.partner-logo {
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  padding: 1rem;
  overflow: hidden;
}
.partner-logo:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--color-primary-border);
  transform: scale(1.05);
}
.partner-logo img {
  max-width: 80%;
  max-height: 80%;
  object-fit: contain;
}
.partner-logo__name {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  text-align: center;
  line-height: 1.3;
}

/* Light bg variant */
.section--cream .partner-logo,
.section--light .partner-logo {
  background: #fff;
  border-color: var(--color-border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.section--cream .partner-logo:hover,
.section--light .partner-logo:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(212,145,58,0.1);
}


/* ═══════════════════════════════════════════════
   TEAM
   ═══════════════════════════════════════════════ */

.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(2rem, 4vw, 4rem);
}
.team-grid h3 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}
.team-grid p {
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--color-text-secondary);
}
.section--dark .team-grid p {
  color: var(--color-text-on-dark-muted);
}


/* ═══════════════════════════════════════════════
   ARCHIVE LINKS
   ═══════════════════════════════════════════════ */

.archive-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1.5rem;
  max-width: 960px;
  margin: 0 auto;
}
.archive-item {
  text-align: center;
  padding: 1.5rem 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: #fff;
  transition: all var(--transition);
}
.archive-item:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 20px rgba(212,145,58,0.12);
  transform: translateY(-2px);
}
.archive-item__year {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--color-primary);
}
.archive-item__name {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}
.archive-item__link {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}


/* ═══════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════ */

.site-footer {
  background: var(--color-dark);
  color: var(--color-text-on-dark-muted);
  padding: 4rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer-grid h4 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-on-dark);
  margin-bottom: 1rem;
}
.footer-grid p {
  font-size: 0.85rem;
  line-height: 1.7;
}
.footer-grid a {
  display: block;
  font-size: 0.85rem;
  padding: 0.2rem 0;
}
.footer-grid a:hover {
  color: var(--color-primary);
}
.footer-bottom {
  border-top: 1px solid var(--color-dark-mid);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--color-dark-lighter);
  flex-wrap: wrap;
  gap: 1rem;
}


/* ═══════════════════════════════════════════════
   WP SPECIFIC
   ═══════════════════════════════════════════════ */

/* Gutenberg align-wide / align-full */
.alignwide { max-width: var(--container-width); margin-left: auto; margin-right: auto; }
.alignfull { width: 100vw; position: relative; left: 50%; right: 50%; margin-left: -50vw; margin-right: -50vw; }

/* WordPress image alignment */
.alignleft { float: left; margin-right: 1.5rem; margin-bottom: 1rem; }
.alignright { float: right; margin-left: 1.5rem; margin-bottom: 1rem; }
.aligncenter { display: block; margin-left: auto; margin-right: auto; }

/* Post content spacing */
.entry-content > * + * { margin-top: 1.5rem; }
.entry-content h2 { margin-top: 2.5rem; }
.entry-content h3 { margin-top: 2rem; }

/* Gallery WP native */
.wp-block-gallery { gap: 0.75rem !important; }

/* Screen reader text */
.screen-reader-text {
  clip: rect(1px, 1px, 1px, 1px);
  position: absolute !important;
  height: 1px; width: 1px;
  overflow: hidden;
  word-wrap: normal !important;
}


/* ═══════════════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════════════ */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up {
  opacity: 0;
  animation: fadeUp 0.7s ease forwards;
}
.fade-up:nth-child(2) { animation-delay: 0.1s; }
.fade-up:nth-child(3) { animation-delay: 0.2s; }
.fade-up:nth-child(4) { animation-delay: 0.3s; }

/* Scroll-triggered */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }


/* ═══════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════ */

@media (max-width: 960px) {
  .block-hero__content .container { grid-template-columns: 1fr; }
  .block-hero__logo-badge { display: none; }
  .intro-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 0; }
  .main-nav a { padding: 0.75rem 1rem; }
  .main-nav .sub-menu { position: static; box-shadow: none; border: none; padding-left: 1rem; }
  .main-nav li:hover > .sub-menu { display: block; }
  .speakers-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .section--parallax { background-attachment: scroll; }
}

@media (max-width: 480px) {
  .speakers-grid { grid-template-columns: 1fr; }
  .resources-grid { grid-template-columns: 1fr 1fr; }
  .archive-grid { grid-template-columns: repeat(3, 1fr); }
  .gallery-grid { grid-template-columns: 1fr 1fr; gap: 0.5rem; }
  .top-bar__contact { display: none; }
}