/* assets/css/style.css - Aerofoundry Modern Graphite Design System */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

/* Font-face local fallbacks */
@font-face {
  font-family: 'neosansregular';
  src: url('../fonts/neosans/neosans-webfont.woff') format('woff'),
       url('../fonts/neosans/neosans-webfont.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
}

:root {
  /* Graphite Color Tokens */
  --bg-body: #131518;
  --bg-canvas: #17191d;
  --bg-surface: #1e2227;
  --bg-surface-elevated: #252a32;
  --bg-surface-hover: #2b313a;
  
  --border-subtle: #2d333d;
  --border-medium: #3b4350;
  --border-focus: #f7941e;

  --text-primary: #f2f4f8;
  --text-secondary: #9da7b5;
  --text-muted: #6e7785;
  --text-inverse: #101214;

  --accent-gold: #f7941e;
  --accent-gold-hover: #ffaa33;
  --accent-gold-glow: rgba(247, 148, 30, 0.18);
  --accent-crimson: #b91c1c;
  --accent-crimson-hover: #dc2626;

  --font-heading: 'neosansregular', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'neosansregular', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);

  --nav-height: 54px;
  --topbar-height: 42px;
}

/* Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-body);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 700;
/*  letter-spacing: -0.015em;*/
  margin-top: 0;
  margin-bottom: 0.6em;
  line-height: 1.25;
}

h1 { /*font-size: clamp(2rem, 3.5vw, 2.75rem); */}
h2 { font-size: clamp(1.5rem, 2.5vw, 1.85rem); }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.15rem; }

p {
  margin-top: 0;
  margin-bottom: 1.2rem;
  color: var(--text-secondary);
}

strong, b {
  color: var(--text-primary);
  font-weight: 400;
}

a {
  color: var(--accent-gold);
  text-decoration: none;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

a:hover {
  color: var(--accent-gold-hover);
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Layout Containers */
.site-container {
  width: 100%;
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
  margin-top: 20px;	
  margin-bottom: 30px;	
}

/* Top Bar (Header Bar) */
.wrap-header-top-bar {
  background-color: var(--bg-canvas);
  border-bottom: 1px solid var(--border-subtle);
  height: 70px /*var(--topbar-height)*/; 
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

.topbar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.brand-logo-link {
  display: flex;
  align-items: center;
  text-decoration: none !important;
}

.brand-logo-img {
  height: 28px;
  width: auto;
  object-fit: contain;
}

.topbar-links {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
}

.topbar-link {
  color: var(--text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color 0.2s ease;
}

.topbar-link:hover {
  color: var(--accent-gold);
  text-decoration: none;
}

/* Main Navigation Bar */
.wrap-header {
  background-color: rgba(23, 25, 29, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-medium);
  height: var(--nav-height);
  position: fixed;
  top: var(--topbar-height);
  left: 0;
  right: 0;
  z-index: 990;
  transition: background-color 0.25s ease, box-shadow 0.25s ease;
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.main-navigation {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 4px;
}

.main-navigation > li {
  position: relative;
}

.main-navigation > li > a {
  display: block;
  padding: 8px 12px;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.main-navigation > li > a:hover {
  color: var(--text-primary);
  background-color: var(--bg-surface-elevated);
  text-decoration: none;
}

.main-navigation > li.active > a {
  color: var(--accent-gold);
  font-weight: 600;
  background-color: rgba(247, 148, 30, 0.1);
}

.main-navigation > li.active > a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 12px;
  right: 12px;
  height: 2px;
  background-color: var(--accent-gold);
  border-radius: 2px;
}

/* Mobile Nav Toggle Button */
.btn-mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 7px 10px;
  cursor: pointer;
  color: var(--text-primary);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.btn-mobile-toggle:hover {
  background-color: var(--bg-surface-elevated);
  border-color: var(--accent-gold);
}

.hamburger-line {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--text-primary);
  margin: 4px 0;
  transition: transform 0.2s ease;
}

/* Mobile Drawer Overlay */
.mobile-nav-drawer {
  display: none;
  position: fixed;
  top: calc(var(--topbar-height) + var(--nav-height));
  left: 0;
  right: 0;
  background-color: var(--bg-canvas);
  border-bottom: 1px solid var(--border-medium);
  padding: 16px 20px 24px;
  box-shadow: var(--shadow-lg);
  z-index: 998;
}

.mobile-nav-drawer.open {
  display: block;
}

.mobile-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mobile-nav-list li a {
  display: block;
  padding: 10px 14px;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface);
  transition: all 0.2s ease;
}

.mobile-nav-list li a:hover,
.mobile-nav-list li.active a {
  color: var(--accent-gold);
  background-color: var(--bg-surface-elevated);
  text-decoration: none;
}

/* Hero / Header Image Banner */
.wrap-header-image {
  margin-top: calc(var(--topbar-height) + var(--nav-height));
  position: relative;
  background-color: #0b0c0e;
  overflow: hidden;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-banner {
  position: relative;
  min-height: 460px;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center right;
  background-repeat: no-repeat;
}

.hero-backdrop {
  position: absolute;
  inset: 0;
 /* background: linear-gradient(90deg, rgba(19, 21, 24, 0.96) 0%, rgba(19, 21, 24, 0.82) 55%, rgba(19, 21, 24, 0.45) 100%); */
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 48px;
  padding-bottom: 48px;
  max-width: 680px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  background-color: rgba(247, 148, 30, 0.12);
  border: 1px solid rgba(247, 148, 30, 0.3);
  border-radius: 4px;
  color: var(--accent-gold);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 18px;
}

.hero-title {
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  color: #ffffff;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.hero-title span {
  color: var(--accent-gold);
}

.hero-description {
  font-size: 1.08rem;
  line-height: 1.6;
  color: #c5cbd5;
  margin-bottom: 28px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

/* Standard Buttons */
.btn-graphite-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  background-color: var(--accent-gold);
  color: #ffffff !important;
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.15s ease;
  text-decoration: none !important;
}

.btn-graphite-primary:hover {
  background-color: var(--accent-gold-hover);
  transform: translateY(-1px);
}

.btn-graphite-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  background-color: rgba(37, 42, 50, 0.6);
  color: var(--text-primary) !important;
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-medium);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none !important;
}

.btn-graphite-outline:hover {
  background-color: var(--bg-surface-elevated);
  border-color: var(--text-primary);
  transform: translateY(-1px);
}

/* Content Sections */
.main-content {
  padding-top: 48px;
  padding-bottom: 64px;
}

.section-header {
  margin-bottom: 32px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* Two Column Grid & Cards */
.grid-2col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 40px;
}

.graphite-card {
  background-color: var(--bg-surface);
/*  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md); */
  padding: 28px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  position: relative;
}

.graphite-card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
}

.graphite-card h3, 
.graphite-card h4 {
  color: #ffffff;
  margin-bottom: 14px;
}

.graphite-card p:last-child {
  margin-bottom: 0;
}

/* Highlight Crimson Card for Whitepapers */
.card-crimson {
 /* background: linear-gradient(145deg, #1f1414 0%, #2a1818 100%); */
  border: 1px solid rgba(185, 28, 28, 0.45);
  position: relative;
  overflow: hidden;
}

.card-crimson::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background-color: var(--accent-crimson);
}

.card-crimson h3 {
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-crimson p {
 /* color: #f1d3d3; */
}

.card-crimson a.doc-link {
  color: #ffffff;
 /* font-weight: 700;*/
  text-decoration: underline;
}

.card-crimson a.doc-link:hover {
  color: var(--accent-gold);
}

/* Contact Block */
.contact-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px;
}

.contact-channels {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.contact-badge-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  color: var(--text-primary) !important;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none !important;
  transition: all 0.2s ease;
}

.contact-badge-btn:hover {
  background-color: var(--bg-surface-hover);
  border-color: var(--accent-gold);
  transform: translateY(-2px);
}

.contact-badge-btn.signal-btn:hover {
  border-color: #3a76f0;
}

.contact-badge-btn.wa-btn:hover {
  border-color: #25d366;
}

.contact-badge-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* Figure & Showcase Grid */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 36px;
  margin-bottom: 48px;
}

.showcase-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  display: flex;
  flex-direction: column;
}

.showcase-item:hover {
  transform: translateY(-4px);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-lg);
}

.showcase-thumb-holder {
  position: relative;
  width: 100%;
  height: 220px;
  background-color: #0c0e11;
  overflow: hidden;
}

.showcase-thumb-holder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.showcase-item:hover .showcase-thumb-holder img {
  transform: scale(1.04);
}

.showcase-body {
  padding: 22px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.showcase-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
}

.showcase-caption {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 0;
}

/* Separator */
.graphite-separator {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle) 20%, var(--border-subtle) 80%, transparent);
  margin: 48px 0;
}

/* Footer Section */
.site-footer {
  background-color: var(--bg-canvas);
  border-top: 1px solid var(--border-subtle);
  padding-top: 56px;
  padding-bottom: 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 48px;
}

.footer-col h4 {
  font-size: 1.05rem;
  color: #ffffff;
  margin-bottom: 18px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--accent-gold);
  text-decoration: none;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .main-navigation {
    display: none;
  }

  .btn-mobile-toggle {
    display: block;
  }

  .grid-2col {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .showcase-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero-banner {
    min-height: 380px;
  }

  .hero-cta-group {
    flex-direction: column;
    align-items: stretch;
  }

  .topbar-content {
    font-size: 0.78rem;
  }
}