/* ============================================================
   layout.css — Trail Monkeys Rosenheim
   Header, nav, hero, main, footer, page grid.
   ============================================================ */

/* ---- HEADER / NAV ---- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background-color: rgba(26, 26, 26, 0.96);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

@media (max-width: 768px) {
  :root { --nav-height: 80px; }
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

/* Nav logo */
.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}
.nav-logo img {
  height: 48px;
  width: auto;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  padding: 0;
  margin: 0;
}
.nav-links a {
  display: block;
  padding: var(--space-2) var(--space-4);
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: var(--text-base);
  font-weight: var(--fw-bold);
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  transition: color var(--transition), background-color var(--transition);
  white-space: nowrap;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--color-white);
  background-color: rgba(255,255,255,0.1);
}
.nav-links a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* TSV badge */
.nav-tsv-badge {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.nav-tsv-badge img {
  height: 40px;
  width: auto;
  opacity: 0.9;
}

/* --- Hamburger (CSS-only, no JS) --- */
.nav-toggle-label {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}
.nav-toggle-label span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

#nav-toggle {
  display: none; /* hidden checkbox */
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav-toggle-label {
    display: flex;
    order: 3;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background-color: rgba(26,26,26,0.98);
    padding: var(--space-4);
    gap: var(--space-1);
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }
  #nav-toggle:checked ~ .site-header .nav-links {
    display: flex;
  }

  /* Animate hamburger to X when open */
  #nav-toggle:checked ~ .site-header .nav-toggle-label span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  #nav-toggle:checked ~ .site-header .nav-toggle-label span:nth-child(2) {
    opacity: 0;
  }
  #nav-toggle:checked ~ .site-header .nav-toggle-label span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .nav-logo img { height: 40px; }
}


/* ---- HERO ---- */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: flex-start;
  background-color: var(--color-hero-fallback);
  overflow: hidden;
}

/* Hero background image via <picture> */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

/* Dark overlay — gradient darker on left where text lives */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(0,0,0,0.72) 0%,
    rgba(0,0,0,0.55) 45%,
    rgba(0,0,0,0.35) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: calc(var(--nav-height) + 100px) var(--space-6) var(--space-16);
}

.hero-logo {
  margin-bottom: var(--space-4);
}
.hero-logo img {
  height: 300px;
  width: auto;
  filter: drop-shadow(0 4px 20px rgba(0,0,0,0.6));
}

.hero h1 {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  font-weight: var(--fw-black);
  color: var(--color-white);
  text-shadow: 0 2px 8px rgba(0,0,0,0.6);
  margin-bottom: var(--space-3);
  max-width: 680px;
}

.hero-subtitle {
  font-size: clamp(var(--text-xl), 2.5vw, var(--text-3xl));
  font-weight: var(--fw-bold);
  color: rgba(255,255,255,0.95);
  text-shadow: 0 2px 6px rgba(0,0,0,0.5);
  margin-bottom: var(--space-3);
  max-width: 580px;
}

.hero-tagline {
  font-size: clamp(var(--text-base), 1.5vw, var(--text-lg));
  color: rgba(255,255,255,0.82);
  text-shadow: 0 1px 4px rgba(0,0,0,0.5);
  margin-bottom: var(--space-10);
  max-width: 500px;
  line-height: var(--leading-normal);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  animation: scroll-bounce 2s ease-in-out infinite;
  transition: color var(--transition);
}
.scroll-indicator:hover {
  color: var(--color-white);
}
.scroll-indicator svg {
  width: 32px;
  height: 32px;
}
@keyframes scroll-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

@media (max-width: 480px) {
  .hero-logo img { height: 200px; }
  .hero-ctas { flex-direction: column; align-items: stretch; }
}


/* ---- MAIN CONTENT ---- */

main {
  padding-top: 0; /* hero is full viewport, main starts after */
}

/* Page hero (non-index pages) */
.page-hero {
  padding: calc(var(--nav-height) + var(--space-12)) var(--space-6) var(--space-10);
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-mid) 100%);
  color: var(--color-white);
  text-align: center;
}
.page-hero h1 {
  color: var(--color-white);
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
}
.page-hero p {
  color: rgba(255,255,255,0.8);
  max-width: 600px;
  margin: var(--space-3) auto 0;
  font-size: clamp(var(--text-sm), 2vw, var(--text-base));
}

@media (max-width: 480px) {
  .page-hero {
    padding: calc(var(--nav-height) + var(--space-8)) var(--space-4) var(--space-8);
  }
}


/* ---- SECTIONS ---- */

.section-intro {
  padding: var(--space-16) var(--space-6);
}
.section-intro .container {
  max-width: 800px;
}
.section-intro h2 {
  margin-bottom: var(--space-6);
  font-size: clamp(var(--text-2xl), 3vw, var(--text-3xl));
}

/* Feature cards grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
  gap: var(--space-6);
  margin-top: var(--space-8);
}

/* Info columns (training groups) */
.info-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
  gap: var(--space-8);
  margin-top: var(--space-8);
}


/* ---- SUPPORTERS BAR ---- */

.supporters-bar {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: var(--space-10) var(--space-6);
  text-align: center;
}
.supporters-bar .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}
.supporters-label {
  font-size: var(--text-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.supporters-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-8) var(--space-10);
}
.supporter-item {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: opacity var(--transition);
}
.supporter-item:hover {
  opacity: 0.75;
}
.supporter-item img {
  /* TODO: replace placeholder spans with real logos once available */
  max-height: 60px;
  max-width: 180px;
  width: auto;
  object-fit: contain;
  filter: grayscale(20%);
  transition: filter var(--transition);
}
.supporter-item:hover img {
  filter: grayscale(0%);
}
/* Text-only placeholder styling (used until real logos are added) */
.supporter-name {
  font-size: var(--text-sm);
  font-weight: var(--fw-bold);
  color: var(--color-text-muted);
  white-space: nowrap;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

@media (max-width: 600px) {
  .supporters-grid {
    gap: var(--space-5) var(--space-6);
  }
  .supporter-item img {
    max-height: 44px;
    max-width: 140px;
  }
}


/* ---- FOOTER ---- */

.site-footer {
  background-color: var(--color-dark);
  color: rgba(255,255,255,0.7);
  padding: var(--space-10) var(--space-6);
  text-align: center;
}
.site-footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2) var(--space-6);
  list-style: none;
  padding: 0;
}
.footer-links a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--color-white); }
.footer-copy {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.45);
}