/* ==========================================================================
   MCD Tactical UAV Manufacturing - Design System & Stylesheet
   Modern Defense Aerospace & Tactical Technology Aesthetic
   ========================================================================== */

:root {
  --bg-primary: #07090e;
  --bg-secondary: #0c1119;
  --bg-card: rgba(15, 22, 33, 0.75);
  --bg-card-hover: rgba(22, 32, 48, 0.9);
  --bg-elevated: #131c2a;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(0, 229, 255, 0.35);
  --border-accent: #00e5ff;
  
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-glow: rgba(0, 229, 255, 0.7);

  --accent-cyan: #00e5ff;
  --accent-cyan-dark: #00a8bb;
  --accent-cyan-glow: rgba(0, 229, 255, 0.25);
  --accent-amber: #f59e0b;
  --accent-amber-glow: rgba(245, 158, 11, 0.2);
  --accent-green: #10b981;
  
  --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'SF Mono', 'JetBrains Mono', 'Roboto Mono', 'Fira Code', monospace;

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --container-max: 1240px;
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(0, 229, 255, 0.08) 0%, transparent 60%),
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
  background-position: 0 0, -1px -1px, -1px -1px;
}

/* Base typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #ffffff;
  line-height: 1.25;
}

p {
  color: var(--text-secondary);
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: #67e8f9;
}

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

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Tactical HUD badge */
.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 5px 12px;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.3);
  color: var(--accent-cyan);
  border-radius: 2px;
  margin-bottom: 16px;
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.1);
}

.badge-tag::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background-color: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulse-dot 2s infinite;
}

.badge-tag.amber {
  background: rgba(245, 158, 11, 0.08);
  border-color: rgba(245, 158, 11, 0.3);
  color: var(--accent-amber);
}

.badge-tag.amber::before {
  background-color: var(--accent-amber);
  box-shadow: 0 0 8px var(--accent-amber);
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* ==========================================================================
   Navigation Bar
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(7, 9, 14, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo img {
  height: 42px;
  width: auto;
  object-fit: contain;
}

.brand-logo .brand-text {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  border-left: 1px solid var(--border-subtle);
  padding-left: 12px;
  text-transform: uppercase;
  display: none;
}

@media (min-width: 768px) {
  .brand-logo .brand-text {
    display: block;
  }
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 32px;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: 8px 4px;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: #ffffff;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  transition: width var(--transition-normal);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 12px 24px;
  border-radius: 2px;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--accent-cyan);
  color: #07090e;
  border: 1px solid var(--accent-cyan);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.25);
}

.btn-primary:hover {
  background: #2ce9ff;
  color: #000000;
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.45);
  transform: translateY(-1px);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.btn-outline:hover {
  color: #ffffff;
  border-color: var(--accent-cyan);
  background: rgba(0, 229, 255, 0.08);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.15);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.76rem;
}

.btn-icon {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* Mobile Nav Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: 3px;
  color: var(--text-primary);
  padding: 8px 10px;
  cursor: pointer;
}

.mobile-toggle svg {
  display: block;
  width: 22px;
  height: 22px;
  stroke: currentColor;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  padding: 70px 0 100px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 50px;
  align-items: center;
}

.hero-content h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.8rem);
  line-height: 1.12;
  margin-bottom: 24px;
}

.hero-content h1 .gradient-text {
  background: linear-gradient(135deg, #ffffff 40%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.18rem;
  line-height: 1.68;
  color: #cbd5e1;
  margin-bottom: 34px;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
}

.metric-item {
  position: relative;
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: #ffffff;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.metric-value .accent {
  color: var(--accent-cyan);
  font-size: 1.3rem;
}

.metric-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-mono);
  margin-top: 4px;
}

/* Hero Visual Box */
.hero-visual {
  position: relative;
}

.tactical-frame {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  transition: border-color var(--transition-normal);
}

.tactical-frame:hover {
  border-color: var(--border-highlight);
}

.tactical-frame::before,
.tactical-frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border-color: var(--accent-cyan);
  pointer-events: none;
  z-index: 5;
}

.tactical-frame::before {
  top: 8px;
  left: 8px;
  border-top: 2px solid;
  border-left: 2px solid;
}

.tactical-frame::after {
  bottom: 8px;
  right: 8px;
  border-bottom: 2px solid;
  border-right: 2px solid;
}

.hero-image-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #020408;
}

.hero-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-visual:hover .hero-image-wrap img {
  transform: scale(1.04);
}

.hud-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(7, 9, 14, 0.1) 0%, rgba(7, 9, 14, 0.75) 100%);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px;
}

.hud-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hud-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--accent-cyan);
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(0, 229, 255, 0.4);
  padding: 4px 8px;
}

.hud-status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-green);
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 0, 0, 0.6);
  padding: 4px 8px;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.hud-status-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--accent-green);
  animation: pulse-dot 1.8s infinite;
}

.hud-footer {
  background: rgba(12, 17, 25, 0.85);
  backdrop-filter: blur(8px);
  padding: 12px 16px;
  border: 1px solid var(--border-subtle);
  border-radius: 2px;
}

.hud-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.05em;
}

.hud-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-top: 3px;
}

/* ==========================================================================
   Section Headers & Core Layouts
   ========================================================================== */
.section {
  padding: 90px 0;
  position: relative;
}

.section.alt-bg {
  background: rgba(12, 17, 25, 0.5);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  margin-bottom: 54px;
}

.section-header.text-center {
  text-align: center;
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: 1.08rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Feature & Architecture Grid */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 36px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

/* Tactical Feature Card */
.tactical-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 34px 28px;
  border-radius: 3px;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.tactical-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 229, 255, 0.06);
}

.tactical-card .card-corner-tl,
.tactical-card .card-corner-br {
  position: absolute;
  width: 8px;
  height: 8px;
  border-color: var(--accent-cyan);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.tactical-card:hover .card-corner-tl,
.tactical-card:hover .card-corner-br {
  opacity: 1;
}

.tactical-card .card-corner-tl {
  top: -1px;
  left: -1px;
  border-top: 2px solid;
  border-left: 2px solid;
}

.tactical-card .card-corner-br {
  bottom: -1px;
  right: -1px;
  border-bottom: 2px solid;
  border-right: 2px solid;
}

.card-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 2px;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  color: var(--accent-cyan);
}

.card-icon-wrap svg {
  width: 26px;
  height: 26px;
  fill: currentColor;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.card-body {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-secondary);
  flex-grow: 1;
}

/* ==========================================================================
   Timeline / Heritage Section (Crucial requirement: 2013, 2015, 2016, 2023)
   ========================================================================== */
.timeline-wrap {
  position: relative;
  max-width: 1080px;
  margin: 40px auto 0;
  padding: 20px 0;
}

.timeline-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: linear-gradient(180deg, 
    rgba(0, 229, 255, 0.1) 0%, 
    rgba(0, 229, 255, 0.6) 20%, 
    rgba(0, 229, 255, 0.6) 80%, 
    rgba(0, 229, 255, 0.1) 100%
  );
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  margin-bottom: 70px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-node {
  position: absolute;
  left: 50%;
  top: 36px;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  background: var(--bg-secondary);
  border: 2px solid var(--accent-cyan);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  box-shadow: 0 0 16px var(--accent-cyan-glow);
}

.timeline-node-inner {
  width: 14px;
  height: 14px;
  background: var(--accent-cyan);
  border-radius: 50%;
}

.timeline-item.inverted .timeline-content {
  order: 2;
}

.timeline-item.inverted .timeline-media {
  order: 1;
}

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 32px;
  border-radius: 3px;
  position: relative;
}

.timeline-content:hover {
  border-color: var(--border-highlight);
}

.timeline-year {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent-cyan);
  display: inline-block;
  margin-bottom: 6px;
  letter-spacing: 0.05em;
}

.timeline-heading {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.timeline-desc {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 3px 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 2px;
  color: var(--text-muted);
}

.timeline-media {
  position: relative;
  border-radius: 3px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: #000000;
  cursor: pointer;
}

.timeline-media:hover img {
  transform: scale(1.03);
}

.timeline-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.timeline-media .media-badge {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: rgba(7, 9, 14, 0.85);
  backdrop-filter: blur(6px);
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #cbd5e1;
  border: 1px solid var(--border-subtle);
  border-radius: 2px;
  pointer-events: none;
}

.timeline-media-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.timeline-media-gallery .timeline-media img {
  aspect-ratio: 4 / 3;
}

/* ==========================================================================
   Fleet / Systems Showcase Cards
   ========================================================================== */
.system-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 3px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.system-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5), 0 0 25px rgba(0, 229, 255, 0.08);
}

.system-card-image {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: #05070a;
  overflow: hidden;
  cursor: pointer;
}

.system-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.system-card:hover .system-card-image img {
  transform: scale(1.05);
}

.system-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(7, 9, 14, 0.85);
  backdrop-filter: blur(6px);
  border: 1px solid var(--border-subtle);
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
}

.system-card-content {
  padding: 26px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.system-category {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-amber);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.system-card-content h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.system-card-content p {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 20px;
  flex-grow: 1;
}

.system-specs-list {
  list-style: none;
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
  margin-bottom: 20px;
}

.system-specs-list li {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 4px 0;
  color: var(--text-muted);
}

.system-specs-list li span:last-child {
  color: #e2e8f0;
  font-weight: 600;
}

/* ==========================================================================
   About Us Page Styles
   ========================================================================== */
.about-hero-box {
  background: var(--bg-card);
  border: 1px solid var(--border-highlight);
  padding: 48px;
  border-radius: 4px;
  margin-bottom: 60px;
  position: relative;
  box-shadow: 0 0 40px rgba(0, 229, 255, 0.05);
}

.about-hero-box::before {
  content: "CORE CAPABILITY STATEMENT";
  position: absolute;
  top: -10px;
  left: 28px;
  background: var(--bg-primary);
  padding: 0 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  color: var(--accent-cyan);
  border: 1px solid var(--border-subtle);
}

.core-statement {
  font-size: 1.35rem;
  line-height: 1.6;
  color: #ffffff;
  font-weight: 500;
}

.expertise-section {
  margin-top: 30px;
}

.expertise-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 3px;
  padding: 36px 30px;
  transition: all var(--transition-normal);
  position: relative;
}

.expertise-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-3px);
  background: var(--bg-card-hover);
}

.expertise-tag {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--accent-cyan);
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
}

.expertise-card h3 {
  font-size: 1.3rem;
  margin-bottom: 16px;
  color: #ffffff;
}

.schematics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 40px;
}

.schematic-box {
  background: #040609;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 24px;
  text-align: center;
  position: relative;
}

.schematic-box img {
  max-height: 280px;
  margin: 0 auto;
  object-fit: contain;
  filter: drop-shadow(0 0 12px rgba(0, 229, 255, 0.15));
}

.schematic-title {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--accent-cyan);
  margin-top: 16px;
  letter-spacing: 0.08em;
}

/* ==========================================================================
   Contact Us Page Styles
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 50px;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-card-highlight {
  background: var(--bg-card);
  border: 1px solid var(--border-highlight);
  padding: 32px;
  border-radius: 4px;
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.08);
}

.contact-email-link {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 1.35rem;
  color: var(--accent-cyan);
  font-weight: 700;
  letter-spacing: 0.02em;
  margin: 16px 0;
  word-break: break-all;
}

.contact-email-link:hover {
  color: #67e8f9;
  text-decoration: underline;
}

.copy-btn {
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.3);
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 6px 14px;
  border-radius: 2px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.copy-btn:hover {
  background: var(--accent-cyan);
  color: #000;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  background: #05080e;
  border: 1px solid var(--border-subtle);
  border-radius: 2px;
  padding: 12px 16px;
  font-family: var(--font-main);
  font-size: 0.95rem;
  color: #ffffff;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.2);
}

textarea.form-control {
  min-height: 130px;
  resize: vertical;
}

.form-status {
  padding: 12px;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  display: none;
  margin-top: 16px;
}

.form-status.success {
  display: block;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #34d399;
}

/* ==========================================================================
   Image Modal / Lightbox
   ========================================================================== */
.lightbox-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(3, 5, 8, 0.92);
  backdrop-filter: blur(12px);
  padding: 40px 20px;
  align-items: center;
  justify-content: center;
}

.lightbox-modal.active {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border: 1px solid var(--border-subtle);
  border-radius: 2px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8);
}

.lightbox-caption {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #cbd5e1;
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: transparent;
  border: none;
  color: #cbd5e1;
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
}

.lightbox-close:hover {
  color: var(--accent-cyan);
}

/* ==========================================================================
   CTA Banner
   ========================================================================== */
.cta-banner {
  background: linear-gradient(135deg, rgba(15, 23, 36, 0.9) 0%, rgba(10, 16, 26, 0.95) 100%);
  border: 1px solid var(--border-highlight);
  border-radius: 4px;
  padding: 56px 40px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.cta-banner::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 100%;
  background: radial-gradient(circle at 100% 50%, rgba(0, 229, 255, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.cta-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  position: relative;
  z-index: 2;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: #04060a;
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 30px;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand img {
  height: 38px;
  width: auto;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-muted);
  max-width: 320px;
  line-height: 1.6;
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.86rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .timeline-line {
    left: 24px;
  }
  
  .timeline-node {
    left: 24px;
  }
  
  .timeline-item {
    grid-template-columns: 1fr;
    padding-left: 60px;
    gap: 24px;
  }
  
  .timeline-item.inverted .timeline-content {
    order: 1;
  }
  
  .timeline-item.inverted .timeline-media {
    order: 2;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: #07090e;
    border-bottom: 1px solid var(--border-subtle);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    display: none;
  }
  
  .nav-menu.open {
    display: flex;
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .nav-actions .btn {
    display: none;
  }
  
  .hero-metrics {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .cta-flex {
    flex-direction: column;
    text-align: center;
    align-items: stretch;
  }
  
  .schematics-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}