/* =============================================
   SIA 2024 — Sustainable Impact Award
   Rebuild from Wayback Machine
   ============================================= */

:root {
  --primary:   #1d1d1b;   /* темна навігація / футер */
  --secondary: #c8102e;   /* WirtschaftsWoche червоний */
  --accent:    #2d8a00;   /* зелений — sustainability */
  --accent2:   #ef7d00;   /* помаранчевий — CTA кнопки */
  --text:      #333333;
  --text-light:#666666;
  --bg:        #ffffff;
  --bg-light:  #f7f7f7;
  --border:    #e0e0e0;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Open Sans', 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--secondary); text-decoration: none; }
a:hover { text-decoration: underline; }
p { margin-bottom: 1em; }
ul, ol { margin: 0.75em 0 1em 1.5em; }

/* ---- TYPOGRAPHY ---- */
h1, h2, h3, h4 {
  font-family: 'Open Sans', 'Helvetica Neue', Arial, sans-serif;
  font-weight: 700;
  line-height: 1.25;
  color: var(--primary);
}
h1 { font-size: 2.2rem; margin-bottom: 0.75em; }
h2 { font-size: 1.7rem; margin-bottom: 0.6em; }
h3 { font-size: 1.2rem; margin-bottom: 0.4em; }
h4 { font-size: 1rem; }

/* ---- LAYOUT ---- */
.sia-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* =============================================
   HEADER & NAV
   ============================================= */
.sia-header {
  background: var(--primary);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.sia-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.sia-logo img {
  height: 44px;
  width: auto;
}
.sia-logo:hover { opacity: 0.9; }

.sia-nav ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 4px;
  flex-wrap: wrap;
}

.sia-nav ul li a {
  display: block;
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 14px;
  border-radius: 2px;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}
.sia-nav ul li a:hover,
.sia-nav ul li a.active {
  background: var(--secondary);
  color: #fff;
  text-decoration: none;
}

.sia-nav-live {
  background: var(--secondary) !important;
  color: #fff !important;
}
.sia-nav-live:hover { opacity: 0.85; }

/* Dropdown */
.sia-nav .has-dropdown { position: relative; }
.sia-nav .dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--primary);
  min-width: 180px;
  list-style: none;
  margin: 0;
  padding: 4px 0;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  border-top: 2px solid var(--secondary);
}
.sia-nav .dropdown-menu li a {
  padding: 10px 16px;
  font-size: 0.75rem;
}
.sia-nav .has-dropdown:hover .dropdown-menu { display: block; }

/* =============================================
   HERO BANNER
   ============================================= */
.sia-hero {
  width: 100%;
  background: var(--primary);
  overflow: hidden;
  position: relative;
}

.sia-hero img {
  width: 100%;
  height: auto;
  display: block;
  max-height: 520px;
  object-fit: cover;
  object-position: center;
}

/* =============================================
   INTRO SECTION
   ============================================= */
.sia-intro {
  background: var(--bg);
  padding: 64px 0;
  text-align: center;
}

.sia-intro h1 {
  font-size: 2rem;
  color: var(--primary);
  max-width: 800px;
  margin: 0 auto 24px;
}

.sia-intro .sia-intro-date {
  display: inline-block;
  background: var(--secondary);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 6px 20px;
  border-radius: 2px;
  margin-bottom: 24px;
}

.sia-intro-text {
  max-width: 760px;
  margin: 0 auto;
  font-size: 1.05rem;
  color: var(--text-light);
  line-height: 1.8;
}

.sia-cta-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 32px;
}

.btn-primary {
  display: inline-block;
  background: var(--secondary);
  color: #fff;
  padding: 14px 32px;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 2px;
  text-decoration: none;
  transition: opacity 0.2s;
}
.btn-primary:hover { opacity: 0.85; text-decoration: none; }

.btn-secondary {
  display: inline-block;
  border: 2px solid var(--primary);
  color: var(--primary);
  padding: 12px 32px;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 2px;
  text-decoration: none;
  transition: all 0.2s;
}
.btn-secondary:hover { background: var(--primary); color: #fff; text-decoration: none; }

/* =============================================
   SPRECHER (IMPULSGEBER)
   ============================================= */
.sia-sprecher {
  background: var(--bg-light);
  padding: 72px 0;
}

.sia-section-header {
  text-align: center;
  margin-bottom: 48px;
}

.sia-section-header h2 {
  font-size: 1.9rem;
  color: var(--primary);
  margin-bottom: 8px;
}

.sia-section-header::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--secondary);
  margin: 12px auto 0;
}

.sia-speaker-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 28px;
}

.sia-speaker-card {
  background: #fff;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.07);
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}
.sia-speaker-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.12);
}

.sia-speaker-photo {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
  object-position: top;
}

.sia-speaker-info {
  padding: 14px 12px;
}

.sia-speaker-info h3 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sia-speaker-info p {
  font-size: 0.78rem;
  color: var(--text-light);
  margin: 0;
  line-height: 1.4;
}

/* =============================================
   MUSIK SECTION
   ============================================= */
.sia-musik {
  background: var(--primary);
  padding: 56px 0;
  color: #fff;
}

.sia-musik-inner {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.sia-musik-photo {
  width: 240px;
  height: 240px;
  object-fit: cover;
  border-radius: 4px;
  flex-shrink: 0;
}

.sia-musik-text h2 {
  color: #fff;
  margin-bottom: 8px;
}
.sia-musik-text h3 {
  color: var(--secondary);
  font-size: 1.5rem;
  margin-bottom: 12px;
}
.sia-musik-text p { color: rgba(255,255,255,0.8); }

/* =============================================
   PROGRAMM
   ============================================= */
.sia-programm {
  background: var(--bg);
  padding: 72px 0;
}

.sia-agenda-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
}

.sia-agenda-table th {
  background: var(--primary);
  color: #fff;
  padding: 14px 20px;
  text-align: left;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.sia-agenda-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  vertical-align: top;
}

.sia-agenda-table tr:nth-child(even) td { background: var(--bg-light); }
.sia-agenda-table .zeit { white-space: nowrap; font-weight: 700; color: var(--secondary); width: 120px; }

/* =============================================
   IMPRESSIONEN (GALERIE)
   ============================================= */
.sia-impressionen {
  background: var(--bg-light);
  padding: 72px 0;
}

.sia-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}

.sia-gallery-grid img {
  width: 100%;
  aspect-ratio: 3/2;
  object-fit: cover;
  border-radius: 3px;
  transition: opacity 0.2s;
}
.sia-gallery-grid img:hover { opacity: 0.9; }

.sia-foto-credit {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: 16px;
  font-style: italic;
}

/* =============================================
   PARTNER / SPONSORS
   ============================================= */
.sia-partners {
  background: var(--bg);
  padding: 64px 0;
  border-top: 1px solid var(--border);
}

.sia-partner-row {
  margin-bottom: 48px;
}

.sia-partner-row:last-child { margin-bottom: 0; }

.sia-partner-row h2 {
  text-align: center;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-light);
  margin-bottom: 24px;
}

.sia-partner-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.sia-partner-logos img {
  max-height: 60px;
  width: auto;
  object-fit: contain;
  filter: grayscale(20%);
  transition: filter 0.2s;
}
.sia-partner-logos img:hover { filter: none; }

/* =============================================
   FOOTER
   ============================================= */
.sia-footer {
  background: var(--primary);
  color: rgba(255,255,255,0.7);
  padding: 32px 0;
  font-size: 0.85rem;
  text-align: center;
}

.sia-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.sia-footer a { color: rgba(255,255,255,0.7); text-decoration: none; }
.sia-footer a:hover { color: #fff; text-decoration: underline; }

.sia-footer-links { display: flex; gap: 24px; }

/* =============================================
   INNER PAGES (UNTERSEITEN)
   ============================================= */
.sia-page-hero {
  background: var(--primary);
  padding: 56px 0 40px;
  color: #fff;
}

.sia-page-hero h1 {
  color: #fff;
  margin: 0;
  font-size: 2rem;
}

.sia-page-hero p {
  color: rgba(255,255,255,0.75);
  margin: 8px 0 0;
  font-size: 1rem;
}

.sia-page-content {
  padding: 56px 0;
}

.sia-page-content h2 { margin-top: 2em; color: var(--primary); }
.sia-page-content h2:first-child { margin-top: 0; }
.sia-page-content p { color: var(--text); }

/* =============================================
   ANMELDUNG CTA PAGE
   ============================================= */
.sia-anmeldung-box {
  background: var(--bg-light);
  border-left: 4px solid var(--secondary);
  padding: 32px 40px;
  margin-top: 32px;
  border-radius: 0 4px 4px 0;
}

.sia-anmeldung-box h2 { font-size: 1.4rem; color: var(--primary); margin-bottom: 12px; }
.sia-anmeldung-box p { color: var(--text); margin-bottom: 0; font-size: 1.05rem; }

/* =============================================
   PREISTRAGER (WINNERS)
   ============================================= */
.sia-preis-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.sia-preis-card {
  background: var(--bg-light);
  border-top: 3px solid var(--secondary);
  padding: 24px;
  border-radius: 0 0 4px 4px;
}

.sia-preis-card .category {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--secondary);
  margin-bottom: 8px;
}

.sia-preis-card h3 { color: var(--primary); font-size: 1rem; margin-bottom: 4px; }
.sia-preis-card p { font-size: 0.88rem; color: var(--text-light); margin: 0; }

/* =============================================
   RÜCKBLICK SECTIONS (SIA 2023, 2022)
   ============================================= */
.sia-rueckblick-header {
  background: linear-gradient(135deg, #1d1d1b 0%, #2c2c2c 100%);
  padding: 72px 0;
  text-align: center;
  color: #fff;
}

.sia-rueckblick-header h1 { color: #fff; font-size: 2rem; margin-bottom: 12px; }
.sia-rueckblick-header p { color: rgba(255,255,255,0.75); max-width: 700px; margin: 0 auto; }

/* =============================================
   DOCX ARTIKEL (LIVE WETTEN)
   ============================================= */
.article-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.88rem;
}
.article-table th {
  background: var(--primary);
  color: #fff;
  padding: 12px 16px;
  text-align: left;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.article-table td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.article-table tr:nth-child(even) td { background: #f8f9fa; }

.faq-section h3 {
  background: var(--bg-light);
  padding: 14px 18px;
  border-left: 4px solid var(--secondary);
  margin: 0 0 2px;
  font-size: 1rem;
  color: var(--primary);
}
.faq-section p {
  padding: 12px 18px;
  background: #fafafa;
  border-left: 4px solid var(--border);
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.article-intro {
  font-size: 1.1rem;
  color: var(--text);
  line-height: 1.85;
  margin-bottom: 1.5em;
  border-left: 3px solid var(--accent);
  padding-left: 20px;
}

/* =============================================
   404
   ============================================= */
.error-404 {
  text-align: center;
  padding: 100px 20px;
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.error-404 .big-404 {
  font-size: 140px;
  font-weight: 900;
  color: var(--border);
  line-height: 1;
  margin-bottom: 8px;
}

.error-404 h2 { font-size: 1.8rem; color: var(--primary); margin-bottom: 12px; }
.error-404 p { color: var(--text-light); margin-bottom: 24px; }

.btn-back {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 14px 32px;
  border-radius: 2px;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  transition: background 0.2s;
}
.btn-back:hover { background: var(--secondary); text-decoration: none; }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 900px) {
  .sia-header-inner { flex-wrap: wrap; gap: 12px; }
  .sia-nav ul { gap: 2px; }
  .sia-nav ul li a { font-size: 0.7rem; padding: 6px 9px; }
  h1 { font-size: 1.6rem; }
  h2 { font-size: 1.4rem; }
  .sia-speaker-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 16px; }
  .sia-musik-inner { flex-direction: column; text-align: center; }
  .sia-musik-photo { width: 100%; max-width: 300px; margin: 0 auto; }
  .sia-agenda-table .zeit { width: auto; }
}

@media (max-width: 600px) {
  .sia-header-inner { padding: 12px 16px; }
  .sia-nav ul { gap: 2px; }
  .sia-nav ul li a { font-size: 0.65rem; padding: 5px 7px; letter-spacing: 0; }
  .sia-intro { padding: 40px 0; }
  .sia-sprecher, .sia-programm, .sia-impressionen { padding: 48px 0; }
  .sia-footer-inner { flex-direction: column; text-align: center; }
  .sia-footer-links { flex-wrap: wrap; justify-content: center; gap: 16px; }
  .sia-gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .sia-partner-logos img { max-height: 44px; }
  .sia-partner-logos { gap: 28px; }
}

@media (max-width: 400px) {
  .sia-nav ul li a { font-size: 0.6rem; padding: 5px 5px; }
}