/* ============================================================
   LAYOUT.CSS — Grid, Header, Footer, Sidebar, Nav
   ============================================================ */

/* ============================================================
   CONTAINER / GRID
   ============================================================ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (min-width: 768px) {
  .container { padding: 0 var(--space-8); }
}

/* Content + Sidebar layout */
.content-with-sidebar {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 1024px) {
  .content-with-sidebar {
    grid-template-columns: 1fr var(--sidebar-width);
    align-items: start;
  }
}

.main-content { min-width: 0; }

/* 12-column grid helper */
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-6);
}

.col-span-8 { grid-column: span 8; }
.col-span-4 { grid-column: span 4; }
.col-span-6 { grid-column: span 6; }

@media (max-width: 1023px) {
  .grid-12 { grid-template-columns: 1fr; }
  .col-span-8, .col-span-4, .col-span-6 { grid-column: span 1; }
}

/* ============================================================
   SKIP LINK (accessibility)
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--cap-red);
  color: var(--clean-white);
  padding: var(--space-2) var(--space-4);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  font-weight: 600;
  z-index: 9999;
  transition: top var(--transition-fast);
}

.skip-link:focus { top: 0; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(26, 26, 29, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06); /* intentionally always-dark header */
  transition: padding var(--transition-base), box-shadow var(--transition-base);
}

.site-header.scrolled {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-4) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  height: var(--header-height);
}

@media (min-width: 640px) {
  .header-inner {
    padding: var(--space-4) var(--space-6);
    gap: var(--space-6);
  }
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.logo-wordmark {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  line-height: 1;
  letter-spacing: -0.02em;
}

/* Header is always dark — hardcode light colors regardless of theme */
.logo-shroom { color: #ffffff; }
.logo-tube   { color: var(--cap-red); }

/* Primary Nav */
.primary-nav {
  flex: 1;
  display: none;
}

@media (min-width: 1024px) {
  .primary-nav { display: flex; }
}

.primary-nav ul {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
  padding: 0;
  margin: 0;
}

.primary-nav li { margin: 0; }

.primary-nav a {
  display: block;
  padding: var(--space-2) var(--space-3);
  color: rgba(255,255,255,0.75);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}

.primary-nav a:hover,
.primary-nav a[aria-current="page"] {
  color: var(--clean-white);
  background: rgba(255,255,255,0.06);
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
}

.header-btn {
  background: none;
  border: none;
  color: rgba(255,255,255,0.75);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.header-btn:hover {
  color: var(--clean-white);
  background: rgba(255,255,255,0.06);
}

.header-btn svg { width: 20px; height: 20px; }

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 24px;
}

@media (min-width: 1024px) { .hamburger-btn { display: none; } }

.hamburger span {
  display: block;
  height: 2px;
  background: rgba(255,255,255,0.75);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base), background var(--transition-fast);
}

.hamburger-btn:hover .hamburger span { background: var(--clean-white); }

/* Mobile Nav Drawer */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(320px, 90vw);
  height: 100vh;
  background: #1A1A1D; /* always-dark drawer */
  z-index: 600;
  padding: var(--space-6);
  transition: right var(--transition-base);
  overflow-y: auto;
  border-left: 1px solid rgba(255,255,255,0.06);
}

.mobile-nav.open { right: 0; }

.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 590;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
  backdrop-filter: blur(4px);
}

.mobile-nav-overlay.visible {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid rgba(255,255,255,0.06); /* nav always dark */
}

.mobile-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mobile-nav ul li { margin: 0; }

.mobile-nav ul a {
  display: block;
  padding: var(--space-4) 0;
  color: #F5F0E8; /* always light — nav is always-dark */
  font-size: 1.1rem;
  font-weight: 500;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  text-decoration: none;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.mobile-nav ul a:hover {
  color: var(--spore-coral);
  padding-left: var(--space-3);
}

/* ============================================================
   BREADCRUMB
   ============================================================ */
.breadcrumb-wrap {
  padding: var(--space-4) 0;
  margin-bottom: var(--space-2);
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: var(--text-xs);
  color: var(--spore-dust);
}

.breadcrumb li { margin: 0; display: flex; align-items: center; gap: var(--space-2); }

.breadcrumb li::after {
  content: '/';
  color: rgba(168,162,158,0.4);
}

.breadcrumb li:last-child::after { display: none; }

.breadcrumb a {
  color: var(--spore-dust);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb a:hover { color: var(--cream); }
.breadcrumb li:last-child { color: var(--cream); }

/* ============================================================
   MAIN / PAGE SECTIONS
   ============================================================ */
main { padding: var(--space-8) 0 var(--space-16); }

.page-header {
  padding: var(--space-12) 0 var(--space-8);
  border-bottom: 1px solid rgba(0,0,0,0.08);
  margin-bottom: var(--space-8);
}

html.dark-mode .page-header { border-bottom-color: rgba(255,255,255,0.06); }

.page-header-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.page-intro {
  font-size: 1.125rem;
  color: var(--spore-dust);
  max-width: 680px;
  line-height: 1.6;
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

@media (min-width: 1024px) {
  .sidebar {
    position: sticky;
    top: calc(var(--header-height) + var(--space-4));
  }
}

.sidebar-widget {
  background: var(--dark-grain);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1px solid rgba(0,0,0,0.06);
}

html.dark-mode .sidebar-widget { background: var(--midnight-loam); border-color: transparent; }

.sidebar-widget-title {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--spore-dust);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid rgba(0,0,0,0.08);
}

html.dark-mode .sidebar-widget-title { border-bottom-color: rgba(255,255,255,0.06); }

/* Ad placeholder */
.ad-placeholder {
  background: var(--dark-grain);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--spore-dust);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px dashed rgba(0,0,0,0.12);
}

html.dark-mode .ad-placeholder { border-color: rgba(255,255,255,0.1); }

.ad-placeholder-300x250 {
  width: 300px;
  height: 250px;
  max-width: 100%;
}

.ad-placeholder-728x90 {
  width: 100%;
  height: 90px;
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  padding: var(--space-16) 0 var(--space-16);
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 700px;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--spore-coral);
  margin-bottom: var(--space-4);
}

.hero h1 {
  margin-bottom: var(--space-4);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--spore-dust);
  margin-bottom: var(--space-8);
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ============================================================
   SECTION BLOCKS
   ============================================================ */
.section-block {
  padding: var(--space-12) 0;
}

.section-block + .section-block {
  border-top: 1px solid rgba(0,0,0,0.07);
}

html.dark-mode .section-block + .section-block { border-top-color: rgba(255,255,255,0.05); }

.section-block-alt {
  background: var(--midnight-loam);
  padding: var(--space-12) 0;
  margin: var(--space-8) 0;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--dark-grain);
  border-top: 1px solid rgba(0,0,0,0.08);
  padding: var(--space-12) 0 var(--space-8);
}

html.dark-mode .site-footer { background: var(--midnight-loam); border-top-color: rgba(255,255,255,0.06); }

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid rgba(0,0,0,0.08);
}

html.dark-mode .footer-grid { border-bottom-color: rgba(255,255,255,0.06); }

@media (min-width: 640px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 1024px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1.5fr; }
}

.footer-col-title {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--spore-dust);
  margin-bottom: var(--space-4);
}

.footer-nav {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-nav li { margin: 0; }

.footer-nav a {
  display: block;
  padding: var(--space-1) 0;
  color: var(--spore-dust);
  font-size: var(--text-base);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-nav a:hover { color: var(--cream); }

.footer-crisis {
  background: rgba(230, 57, 70, 0.15);
  border: 1px solid rgba(230, 57, 70, 0.3);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.footer-crisis-title {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--alert-vermillion);
  margin-bottom: var(--space-3);
}

.footer-crisis-lines {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-crisis-lines li {
  margin-bottom: var(--space-2);
  font-size: var(--text-xs);
  color: var(--cream);
}

.footer-crisis-lines strong { color: var(--clean-white); display: block; }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-copyright {
  font-size: var(--text-xs);
  color: var(--spore-dust);
}

.footer-disclaimer {
  font-size: var(--text-xs);
  color: var(--spore-dust);
  max-width: 500px;
}

/* ============================================================
   RESPONSIVE UTILITIES
   ============================================================ */
.hide-mobile  { display: none !important; }
.show-mobile  { display: block !important; }

@media (min-width: 768px) {
  .hide-mobile  { display: block !important; }
  .show-mobile  { display: none !important; }
  .hide-tablet  { display: none !important; }
}

@media (min-width: 1024px) {
  .hide-desktop { display: none !important; }
}