/* ============================================================
   CARTER POWER SYSTEMS DIVISION - OPTION 7: VOLCANIC SLATE
   Warm Dark Theme CSS
   ============================================================ */

:root {
    --body-bg: #1A1512;
    --card-bg: #252019;
    --elevated-bg: #33291F;
    --accent-copper: #C87941;
    --accent-gold: #ECAA23;
    --text-primary: #F0EAE0;
    --text-secondary: #A89880;
    --border-color: rgba(200, 121, 65, 0.2);
    --copper-glow: rgba(200, 121, 65, 0.35);
    --gold-glow: rgba(236, 170, 35, 0.25);
    --gradient-copper: linear-gradient(135deg, #C87941, #ECAA23);
    --gradient-dark: linear-gradient(180deg, #1A1512 0%, #252019 100%);
    --font-primary: 'Inter', sans-serif;
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-copper: 0 4px 30px rgba(200, 121, 65, 0.2);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
}

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

html { scroll-behavior: smooth; scrollbar-width: thin; scrollbar-color: var(--accent-copper) var(--body-bg); }
html::-webkit-scrollbar { width: 10px; }
html::-webkit-scrollbar-track { background: var(--body-bg); }
html::-webkit-scrollbar-thumb { background: var(--accent-copper); border-radius: 5px; border: 2px solid var(--body-bg); }
html::-webkit-scrollbar-thumb:hover { background: var(--accent-gold); }

body { font-family: var(--font-primary); background-color: var(--body-bg); color: var(--text-primary); line-height: 1.6; overflow-x: hidden; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
a { text-decoration: none; color: inherit; transition: color var(--transition-base); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.section-pad { padding: 100px 0; }

h1,h2,h3,h4,h5,h6 { font-weight: 700; line-height: 1.2; color: var(--text-primary); }
h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

.section-header { text-align: center; margin-bottom: 64px; }
.section-header h2 { margin-bottom: 16px; }
.section-header .accent-line { width: 80px; height: 3px; background: var(--gradient-copper); margin: 0 auto 20px; border-radius: 2px; }
.section-header p { color: var(--text-secondary); max-width: 640px; margin: 0 auto; font-size: 1.05rem; }
.text-copper { color: var(--accent-copper); }
.text-gold { color: var(--accent-gold); }
.gradient-text { background: var(--gradient-copper); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; border-radius: var(--radius-sm); font-family: var(--font-primary); font-weight: 600; font-size: 0.95rem; cursor: pointer; border: none; transition: all var(--transition-base); text-transform: uppercase; letter-spacing: 0.5px; }
.btn-primary { background: var(--gradient-copper); color: #1A1512; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-copper); filter: brightness(1.1); }
.btn-secondary { background: transparent; color: var(--text-primary); border: 2px solid var(--border-color); }
.btn-secondary:hover { border-color: var(--accent-copper); color: var(--accent-copper); transform: translateY(-2px); }
.btn-sm { padding: 10px 24px; font-size: 0.85rem; }

/* NAVIGATION */
.main-nav { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; padding: 16px 0; transition: all var(--transition-base); background: transparent; }
.main-nav.scrolled { background: rgba(26, 21, 18, 0.97); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); padding: 10px 0; box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4); }
.nav-container { max-width: 1400px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: center; position: relative; }
.nav-left, .nav-right { display: flex; align-items: center; gap: 4px; }
.nav-left { margin-right: auto; }
.nav-right { margin-left: auto; gap: 4px; }
.nav-logo { flex-shrink: 0; padding: 0 32px; display: flex; align-items: center; }
.nav-logo a { display: flex; align-items: center; font-size: 1.15rem; font-weight: 700; color: var(--text-primary); white-space: nowrap; }
.nav-logo .logo-carter { color: var(--accent-copper); font-size: 1.5rem; font-weight: 800; letter-spacing: 4px; text-transform: uppercase; }
.nav-logo .logo-divider { width: 2px; height: 28px; background: var(--border-color); margin: 0 16px; }
.nav-logo .logo-sub { font-size: 0.85rem; font-weight: 600; color: var(--accent-gold); text-transform: uppercase; letter-spacing: 2px; }
.nav-item { position: relative; }
.nav-link { display: flex; align-items: center; gap: 6px; padding: 10px 16px; font-size: 0.88rem; font-weight: 500; color: var(--text-secondary); transition: color var(--transition-base); white-space: nowrap; }
.nav-link:hover, .nav-link.active { color: var(--text-primary); }
.nav-link i.fa-chevron-down { font-size: 0.6rem; transition: transform var(--transition-base); }
.nav-item:hover .nav-link i.fa-chevron-down, .nav-item.open .nav-link i.fa-chevron-down { transform: rotate(180deg); }
.nav-dropdown { position: absolute; top: calc(100% + 8px); left: 0; min-width: 260px; background: var(--elevated-bg); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 8px 0; opacity: 0; visibility: hidden; transform: translateY(8px); transition: all var(--transition-base); box-shadow: var(--shadow-lg); z-index: 100; }
.nav-item:hover .nav-dropdown, .nav-item.open .nav-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown a { display: block; padding: 10px 20px; font-size: 0.88rem; color: var(--text-secondary); transition: all var(--transition-base); }
.nav-dropdown a:hover { color: var(--text-primary); background: rgba(200, 121, 65, 0.08); padding-left: 26px; }
.nav-dropdown a i { margin-right: 10px; width: 18px; text-align: center; color: var(--accent-copper); font-size: 0.8rem; }
.nav-cta { margin-left: 16px; }
.nav-cta .btn { padding: 10px 22px; font-size: 0.82rem; }
.hamburger { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 36px; height: 36px; cursor: pointer; position: absolute; right: 24px; top: 50%; transform: translateY(-50%); z-index: 1001; background: none; border: none; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text-primary); transition: all var(--transition-base); border-radius: 2px; }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
.mobile-menu { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100vh; background: rgba(26, 21, 18, 0.98); backdrop-filter: blur(20px); z-index: 999; padding: 100px 24px 40px; overflow-y: auto; transform: translateX(100%); transition: transform var(--transition-slow); }
.mobile-menu.active { transform: translateX(0); }
.mobile-menu .mobile-nav-item { border-bottom: 1px solid var(--border-color); }
.mobile-menu .mobile-nav-link { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; font-size: 1.1rem; font-weight: 500; color: var(--text-primary); cursor: pointer; }
.mobile-menu .mobile-sub { display: none; padding: 0 0 12px 16px; }
.mobile-menu .mobile-sub.open { display: block; }
.mobile-menu .mobile-sub a { display: block; padding: 10px 0; font-size: 0.95rem; color: var(--text-secondary); }
.mobile-menu .mobile-sub a:hover { color: var(--accent-copper); }
.mobile-cta-wrap { margin-top: 32px; text-align: center; }
.mobile-cta-wrap .btn { width: 100%; justify-content: center; }

/* HERO VERTICAL SLIDER */
.hero-slider { position: relative; width: 100%; height: 100vh; overflow: hidden; }
.hero-track { position: absolute; top: 0; left: 0; width: 100%; height: 100%; transition: transform 0.8s cubic-bezier(0.65, 0, 0.35, 1); }
.hero-slide { position: absolute; top: 0; left: 0; width: 100%; height: 100vh; display: flex; align-items: center; justify-content: flex-start; }
.hero-slide:nth-child(1) { top: 0; }
.hero-slide:nth-child(2) { top: 100vh; }
.hero-slide:nth-child(3) { top: 200vh; }
.hero-slide:nth-child(4) { top: 300vh; }
.hero-slide-bg { position: absolute; inset: 0; background-size: cover; background-position: center; z-index: 0; }
.hero-slide-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(26,21,18,0.88) 0%, rgba(26,21,18,0.6) 50%, rgba(26,21,18,0.75) 100%); }
.hero-slide-content { position: relative; z-index: 2; max-width: 680px; padding: 0 24px 0 8%; opacity: 0; transform: translateY(40px); transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.3s; }
.hero-slide.active .hero-slide-content { opacity: 1; transform: translateY(0); }
.hero-slide-content .hero-label { font-size: 0.85rem; font-weight: 600; text-transform: uppercase; letter-spacing: 3px; color: var(--accent-copper); margin-bottom: 16px; }
.hero-slide-content h1 { font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 800; line-height: 1.1; margin-bottom: 20px; }
.hero-slide-content h1 span { background: var(--gradient-copper); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-slide-content p { font-size: 1.15rem; color: var(--text-secondary); margin-bottom: 36px; max-width: 540px; line-height: 1.7; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-dots { position: absolute; right: 40px; top: 50%; transform: translateY(-50%); z-index: 10; display: flex; flex-direction: column; gap: 24px; }
.hero-dot { width: 44px; height: 44px; position: relative; cursor: pointer; display: flex; align-items: center; justify-content: center; }
.hero-dot-inner { width: 10px; height: 10px; border-radius: 50%; background: var(--text-secondary); transition: all var(--transition-base); }
.hero-dot.active .hero-dot-inner { background: var(--accent-copper); transform: scale(1.2); }
.hero-dot svg { position: absolute; top: 0; left: 0; width: 44px; height: 44px; transform: rotate(-90deg); }
.hero-dot svg circle { fill: none; stroke: var(--accent-copper); stroke-width: 2; stroke-dasharray: 126; stroke-dashoffset: 126; transition: stroke-dashoffset 0.1s linear; }
.hero-dot.active svg circle { stroke-dashoffset: 0; transition: stroke-dashoffset 6s linear; }
.hero-scroll-hint { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); z-index: 10; display: flex; flex-direction: column; align-items: center; gap: 8px; color: var(--text-secondary); font-size: 0.75rem; letter-spacing: 2px; text-transform: uppercase; animation: floatDown 2s ease-in-out infinite; }
.hero-scroll-hint .mouse { width: 24px; height: 38px; border: 2px solid var(--text-secondary); border-radius: 12px; position: relative; }
.hero-scroll-hint .mouse::after { content: ''; position: absolute; top: 8px; left: 50%; transform: translateX(-50%); width: 3px; height: 8px; background: var(--accent-copper); border-radius: 2px; animation: scrollWheel 2s ease-in-out infinite; }
@keyframes floatDown { 0%,100%{ transform: translateX(-50%) translateY(0); } 50%{ transform: translateX(-50%) translateY(8px); } }
@keyframes scrollWheel { 0%{ opacity:1; top:8px; } 100%{ opacity:0; top:22px; } }

/* PERFORMANCE METRICS */
.metrics-section { background: var(--card-bg); border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); padding: 48px 0; position: relative; overflow: hidden; }
.metrics-section::before { content: ''; position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 0h60v60H0z' fill='none'/%3E%3Cpath d='M30 0v60M0 30h60' stroke='rgba(200,121,65,0.04)' stroke-width='1'/%3E%3C/svg%3E"); opacity: 0.5; }
.metrics-grid { display: flex; justify-content: center; align-items: center; position: relative; }
.metric-item { flex: 1; text-align: center; padding: 16px 24px; position: relative; }
.metric-item:not(:last-child)::after { content: ''; position: absolute; right: 0; top: 50%; transform: translateY(-50%); width: 1px; height: 48px; background: var(--border-color); }
.metric-number { font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 800; background: var(--gradient-copper); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 4px; }
.metric-label { font-size: 0.85rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1.5px; font-weight: 500; }

/* CORE CAPABILITIES */
.capabilities-section { padding: 100px 0; }
.capability-band { display: flex; align-items: stretch; min-height: 500px; border-bottom: 1px solid var(--border-color); }
.capability-band:last-child { border-bottom: none; }
.capability-band.reversed { flex-direction: row-reverse; }
.capability-img { flex: 0 0 40%; position: relative; overflow: hidden; }
.capability-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s ease; }
.capability-band:hover .capability-img img { transform: scale(1.05); }
.capability-text { flex: 0 0 60%; padding: 60px 64px; display: flex; flex-direction: column; justify-content: center; }
.capability-text .cap-label { font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 3px; color: var(--accent-copper); margin-bottom: 12px; }
.capability-text h3 { font-size: 1.75rem; margin-bottom: 16px; }
.capability-text > p { color: var(--text-secondary); margin-bottom: 28px; line-height: 1.7; max-width: 520px; }
.cap-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 32px; }
.cap-feature { display: flex; align-items: flex-start; gap: 12px; }
.cap-feature i { color: var(--accent-copper); margin-top: 4px; font-size: 0.85rem; }
.cap-feature span { font-size: 0.95rem; color: var(--text-secondary); }
.link-arrow { display: inline-flex; align-items: center; gap: 8px; color: var(--accent-copper); font-weight: 600; font-size: 0.95rem; transition: all var(--transition-base); }
.link-arrow:hover { gap: 14px; color: var(--accent-gold); }

/* EQUIPMENT MATRIX */
.equipment-section { padding: 100px 0; background: var(--card-bg); }
.tab-bar { display: flex; gap: 8px; margin-bottom: 40px; flex-wrap: wrap; justify-content: center; }
.tab-btn { padding: 10px 28px; background: transparent; border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-secondary); font-family: var(--font-primary); font-size: 0.88rem; font-weight: 500; cursor: pointer; transition: all var(--transition-base); }
.tab-btn:hover { border-color: var(--accent-copper); color: var(--text-primary); }
.tab-btn.active { background: var(--accent-copper); border-color: var(--accent-copper); color: var(--body-bg); }
.equipment-table { width: 100%; border-collapse: collapse; }
.equipment-table thead th { text-align: left; padding: 14px 20px; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 1.5px; color: var(--text-secondary); border-bottom: 2px solid var(--border-color); font-weight: 600; }
.equipment-row { border-bottom: 1px solid var(--border-color); transition: background var(--transition-base); }
.equipment-row:hover { background: rgba(200, 121, 65, 0.05); }
.equipment-row td { padding: 20px; vertical-align: middle; font-size: 0.95rem; }
.equipment-row.hidden { display: none; }
.equip-thumb { width: 80px; height: 56px; border-radius: var(--radius-sm); overflow: hidden; flex-shrink: 0; }
.equip-thumb img { width: 100%; height: 100%; object-fit: cover; }
.equip-name { font-weight: 600; color: var(--text-primary); }
.equip-specs { color: var(--text-secondary); font-size: 0.88rem; }
.equip-apps { font-size: 0.85rem; color: var(--text-secondary); }
.equip-link { color: var(--accent-copper); font-weight: 600; font-size: 0.88rem; white-space: nowrap; transition: color var(--transition-base); }
.equip-link:hover { color: var(--accent-gold); }
.equipment-cards-mobile { display: none; }
.equip-card-m { background: var(--elevated-bg); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 20px; margin-bottom: 16px; }
.equip-card-m.hidden { display: none; }
.equip-card-m-top { display: flex; gap: 16px; margin-bottom: 12px; }
.equip-card-m-info h4 { margin-bottom: 4px; }
.equip-card-m-info p { font-size: 0.85rem; color: var(--text-secondary); }
.equip-card-m-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 12px; border-top: 1px solid var(--border-color); }
.equip-card-m-bottom span { font-size: 0.85rem; color: var(--text-secondary); }

/* 3D FLIP CARDS */
.applications-section { padding: 100px 0; }
.flip-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 1000px; margin: 0 auto; }
.flip-card { perspective: 1000px; height: 320px; cursor: pointer; }
.flip-card-inner { position: relative; width: 100%; height: 100%; transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1); transform-style: preserve-3d; }
.flip-card:hover .flip-card-inner, .flip-card.flipped .flip-card-inner { transform: rotateY(180deg); }
.flip-card-front, .flip-card-back { position: absolute; inset: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden; border-radius: var(--radius-md); border: 1px solid var(--border-color); overflow: hidden; }
.flip-card-front { background: var(--card-bg); display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 32px; }
.flip-card-front i { font-size: 3rem; color: var(--accent-copper); margin-bottom: 20px; }
.flip-card-front h4 { font-size: 1.25rem; margin-bottom: 8px; }
.flip-card-front p { font-size: 0.88rem; color: var(--text-secondary); }
.flip-card-back { background: var(--elevated-bg); transform: rotateY(180deg); display: flex; flex-direction: column; justify-content: center; padding: 32px; }
.flip-card-back h4 { font-size: 1.1rem; margin-bottom: 12px; color: var(--accent-copper); }
.flip-card-back p { font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 16px; line-height: 1.6; }
.flip-specs { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.flip-spec { display: flex; align-items: center; gap: 10px; font-size: 0.85rem; color: var(--text-secondary); }
.flip-spec i { color: var(--accent-copper); width: 16px; font-size: 0.75rem; }

/* HEXAGONAL HONEYCOMB */
.industries-section { padding: 100px 0; background: var(--card-bg); }
.hex-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; max-width: 1000px; margin: 0 auto; }
.hex-item { width: 220px; height: 240px; clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%); position: relative; overflow: hidden; cursor: pointer; transition: all var(--transition-base); }
.hex-item:hover { transform: scale(1.05); filter: brightness(1.15); }
.hex-item::before { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(26,21,18,0.5) 0%, rgba(26,21,18,0.85) 100%); z-index: 1; transition: opacity var(--transition-base); }
.hex-item:hover::before { opacity: 0.6; }
.hex-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.hex-content { position: absolute; inset: 0; z-index: 2; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 32px; }
.hex-content i { font-size: 1.75rem; color: var(--accent-copper); margin-bottom: 10px; }
.hex-content h4 { font-size: 0.95rem; margin-bottom: 4px; }
.hex-content p { font-size: 0.72rem; color: var(--text-secondary); line-height: 1.4; }
.hex-row { display: flex; justify-content: center; gap: 16px; width: 100%; }
.hex-row-2 { margin-top: -30px; }
.hex-mobile-grid { display: none; grid-template-columns: 1fr 1fr; gap: 16px; }
.hex-mobile-card { background: var(--elevated-bg); border: 1px solid var(--border-color); border-radius: var(--radius-md); overflow: hidden; transition: all var(--transition-base); }
.hex-mobile-card:hover { border-color: var(--accent-copper); box-shadow: var(--shadow-copper); }
.hex-mobile-card-img { height: 120px; overflow: hidden; }
.hex-mobile-card-img img { width: 100%; height: 100%; object-fit: cover; }
.hex-mobile-card-body { padding: 16px; text-align: center; }
.hex-mobile-card-body i { color: var(--accent-copper); font-size: 1.25rem; margin-bottom: 8px; display: block; }
.hex-mobile-card-body h4 { font-size: 0.95rem; margin-bottom: 4px; }
.hex-mobile-card-body p { font-size: 0.8rem; color: var(--text-secondary); }

/* PERSONA NAVIGATION */
.personas-section { padding: 100px 0; }
.personas-nav-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 48px; }
.persona-nav-card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 32px 24px; text-align: center; transition: all var(--transition-base); text-decoration: none; display: block; }
.persona-nav-card:hover { border-color: var(--accent-copper); box-shadow: var(--shadow-copper); transform: translateY(-4px); }
.persona-nav-icon { width: 64px; height: 64px; border-radius: 50%; background: linear-gradient(135deg, var(--accent-copper), var(--accent-gold)); display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; }
.persona-nav-icon i { font-size: 1.5rem; color: #fff; }
.persona-nav-card h4 { font-size: 1.15rem; color: var(--text-primary); margin-bottom: 12px; }
.persona-nav-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 16px; }
.persona-nav-link { display: inline-flex; align-items: center; gap: 8px; font-size: 0.85rem; font-weight: 600; color: var(--accent-copper); }
.persona-nav-link i { font-size: 0.75rem; transition: transform var(--transition-base); }
.persona-nav-card:hover .persona-nav-link i { transform: translateX(4px); }
@media (max-width: 991px) { .personas-nav-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 575px) { .personas-nav-grid { grid-template-columns: 1fr; } }

/* VERTICAL TIMELINE */
.timeline-section { padding: 100px 0; }
.timeline { position: relative; max-width: 900px; margin: 0 auto; padding-left: 60px; }
.timeline::before { content: ''; position: absolute; left: 22px; top: 0; bottom: 0; width: 3px; background: var(--gradient-copper); border-radius: 2px; }
.timeline-item { position: relative; margin-bottom: 48px; padding-left: 40px; }
.timeline-item:last-child { margin-bottom: 0; }
.timeline-marker { position: absolute; left: -38px; top: 8px; width: 44px; height: 44px; border-radius: 50%; background: var(--body-bg); border: 3px solid var(--accent-copper); display: flex; align-items: center; justify-content: center; font-size: 0.85rem; font-weight: 700; color: var(--accent-copper); z-index: 1; }
.timeline-card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 32px; transition: all var(--transition-base); }
.timeline-card:hover { border-color: var(--accent-copper); box-shadow: var(--shadow-copper); transform: translateX(8px); }
.timeline-card-head { display: flex; align-items: center; gap: 16px; margin-bottom: 12px; }
.timeline-card-head i { font-size: 1.25rem; color: var(--accent-copper); }
.timeline-card-head h4 { font-size: 1.15rem; }
.timeline-card > p { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 12px; line-height: 1.7; }
.timeline-benefit { display: inline-flex; align-items: center; gap: 8px; font-size: 0.85rem; font-weight: 600; color: var(--accent-gold); }
.timeline-benefit i { font-size: 0.75rem; }

/* DOCUMENTATION CENTER */
.docs-section { padding: 100px 0; background: var(--card-bg); }
.docs-controls { display: flex; gap: 16px; margin-bottom: 40px; flex-wrap: wrap; align-items: center; }
.doc-search-wrap { position: relative; flex: 1; min-width: 260px; }
.doc-search-wrap i { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--text-secondary); font-size: 0.9rem; }
.doc-search-wrap input { width: 100%; padding: 12px 16px 12px 44px; background: var(--body-bg); border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-primary); font-family: var(--font-primary); font-size: 0.9rem; transition: border-color var(--transition-base); }
.doc-search-wrap input::placeholder { color: var(--text-secondary); }
.doc-search-wrap input:focus { outline: none; border-color: var(--accent-copper); }
.doc-filters { display: flex; gap: 8px; flex-wrap: wrap; }
.doc-filter-btn { padding: 8px 20px; background: transparent; border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-secondary); font-family: var(--font-primary); font-size: 0.82rem; cursor: pointer; transition: all var(--transition-base); }
.doc-filter-btn:hover { border-color: var(--accent-copper); color: var(--text-primary); }
.doc-filter-btn.active { background: var(--accent-copper); border-color: var(--accent-copper); color: var(--body-bg); }
.docs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.doc-card { background: var(--body-bg); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 28px; transition: all var(--transition-base); }
.doc-card:hover { border-color: var(--accent-copper); transform: translateY(-4px); box-shadow: var(--shadow-copper); }
.doc-card.hidden { display: none; }
.doc-card-icon { width: 48px; height: 48px; border-radius: var(--radius-sm); background: rgba(200,121,65,0.1); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.doc-card-icon i { font-size: 1.25rem; color: var(--accent-copper); }
.doc-card h4 { font-size: 1.05rem; margin-bottom: 8px; }
.doc-card .doc-tag { display: inline-block; padding: 4px 12px; background: rgba(200,121,65,0.1); border-radius: 20px; font-size: 0.72rem; color: var(--accent-copper); text-transform: uppercase; letter-spacing: 1px; font-weight: 600; margin-bottom: 12px; }
.doc-card p { font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 20px; line-height: 1.6; }
.doc-download { display: inline-flex; align-items: center; gap: 8px; padding: 8px 20px; background: rgba(200,121,65,0.1); border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--accent-copper); font-family: var(--font-primary); font-size: 0.82rem; font-weight: 600; cursor: pointer; transition: all var(--transition-base); }
.doc-download:hover { background: var(--accent-copper); color: var(--body-bg); border-color: var(--accent-copper); }

/* SUCCESS STORIES */
.stories-section { padding: 100px 0; }
.stories-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.story-card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: var(--radius-md); overflow: hidden; transition: all var(--transition-base); }
.story-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-copper); border-color: var(--accent-copper); }
.story-card-img { height: 200px; overflow: hidden; position: relative; }
.story-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.story-card:hover .story-card-img img { transform: scale(1.08); }
.story-pill { position: absolute; top: 14px; left: 14px; padding: 5px 14px; background: rgba(200,121,65,0.9); border-radius: 20px; font-size: 0.72rem; font-weight: 600; color: var(--body-bg); text-transform: uppercase; letter-spacing: 1px; z-index: 1; }
.story-card-body { padding: 28px; }
.story-card-body h4 { font-size: 1.1rem; margin-bottom: 16px; }
.story-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--border-color); }
.story-stat { text-align: center; }
.story-stat .stat-val { font-size: 1.15rem; font-weight: 700; background: var(--gradient-copper); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; display: block; }
.story-stat .stat-lbl { font-size: 0.72rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.5px; }
.story-card-body > p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 20px; }

/* REGIONAL COVERAGE */
.coverage-section { padding: 100px 0; background: var(--card-bg); position: relative; }
.coverage-bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: 0.08; }
.coverage-content { position: relative; z-index: 1; }
.locations-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 800px; margin: 0 auto 40px; }
.location-card { background: var(--body-bg); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 28px; transition: all var(--transition-base); }
.location-card:hover { border-color: var(--accent-copper); box-shadow: var(--shadow-copper); }
.location-card h4 { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; font-size: 1.05rem; }
.location-card h4 i { color: var(--accent-copper); }
.location-card .loc-badge { display: inline-block; padding: 2px 10px; background: rgba(236,170,35,0.15); border-radius: 20px; font-size: 0.68rem; color: var(--accent-gold); text-transform: uppercase; letter-spacing: 1px; font-weight: 600; margin-left: 8px; }
.location-card p { color: var(--text-secondary); font-size: 0.9rem; }
.location-card .loc-phone { display: flex; align-items: center; gap: 8px; margin-top: 8px; color: var(--accent-copper); font-weight: 600; font-size: 0.9rem; }
.coverage-cta { text-align: center; }

/* CONTACT */
.contact-section { padding: 100px 0; }
.cta-cards-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 64px; }
.cta-card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 36px; text-align: center; transition: all var(--transition-base); }
.cta-card:hover { border-color: var(--accent-copper); transform: translateY(-4px); box-shadow: var(--shadow-copper); }
.cta-card i { font-size: 2rem; color: var(--accent-copper); margin-bottom: 16px; }
.cta-card h4 { margin-bottom: 8px; }
.cta-card p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 20px; }
.contact-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 48px; }
.contact-form-wrap { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 40px; }
.contact-form-wrap h3 { margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 6px; font-weight: 500; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px 16px; background: var(--body-bg); border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-primary); font-family: var(--font-primary); font-size: 0.9rem; transition: border-color var(--transition-base); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--accent-copper); }
.form-group select { appearance: none; background-repeat: no-repeat; background-position: right 16px center; padding-right: 40px; }
.form-group select option { background: var(--card-bg); color: var(--text-primary); }
.form-group textarea { resize: vertical; min-height: 100px; }
.form-group .error-msg { display: none; font-size: 0.78rem; color: #e74c3c; margin-top: 4px; }
.form-group.has-error input, .form-group.has-error select, .form-group.has-error textarea { border-color: #e74c3c; }
.form-group.has-error .error-msg { display: block; }
.contact-info-side { display: flex; flex-direction: column; gap: 28px; }
.info-block { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 28px; }
.info-block h4 { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; font-size: 1rem; }
.info-block h4 i { color: var(--accent-copper); }
.info-block p, .info-block a { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }
.info-block a:hover { color: var(--accent-copper); }
.info-hours { display: grid; gap: 8px; }
.info-hours .hour-row { display: flex; justify-content: space-between; font-size: 0.88rem; color: var(--text-secondary); }
.info-hours .hour-row span:first-child { font-weight: 500; color: var(--text-primary); }
.emergency-banner { background: rgba(200,121,65,0.1); border: 1px solid var(--accent-copper); border-radius: var(--radius-md); padding: 24px; text-align: center; }
.emergency-banner h4 { color: var(--accent-copper); margin-bottom: 8px; }
.emergency-banner .emergency-num { font-size: 1.5rem; font-weight: 800; color: var(--accent-gold); }

/* FOOTER */
.site-footer { background: #111; border-top: 1px solid var(--border-color); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand p { color: var(--text-secondary); font-size: 0.9rem; margin: 16px 0; line-height: 1.6; }
.footer-brand .footer-logo { font-size: 1.1rem; font-weight: 700; }
.footer-brand .footer-logo span { color: var(--accent-copper); }
.footer-socials { display: flex; gap: 12px; margin-top: 16px; }
.footer-socials a { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--border-color); display: flex; align-items: center; justify-content: center; color: var(--text-secondary); font-size: 0.9rem; transition: all var(--transition-base); }
.footer-socials a:hover { background: var(--accent-copper); border-color: var(--accent-copper); color: var(--body-bg); }
.footer-col h5 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 20px; color: var(--text-primary); }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 0.88rem; color: var(--text-secondary); transition: all var(--transition-base); }
.footer-col ul li a:hover { color: var(--accent-copper); padding-left: 4px; }
.footer-bottom { border-top: 1px solid var(--border-color); padding: 20px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer-bottom p { font-size: 0.82rem; color: var(--text-secondary); }
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a { font-size: 0.82rem; color: var(--text-secondary); }
.footer-bottom-links a:hover { color: var(--accent-copper); }

/* BACK TO TOP */
.back-to-top { position: fixed; bottom: 30px; right: 30px; width: 48px; height: 48px; border-radius: 50%; background: var(--accent-copper); color: var(--body-bg); display: flex; align-items: center; justify-content: center; font-size: 1rem; cursor: pointer; z-index: 999; opacity: 0; visibility: hidden; transform: translateY(20px); transition: all var(--transition-base); border: none; box-shadow: var(--shadow-md); }
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--accent-gold); transform: translateY(-4px); }

/* ANIMATIONS */
.animate-in { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.animate-in.in-view { opacity: 1; transform: translateY(0); }
.animate-in-left { opacity: 0; transform: translateX(-40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.animate-in-left.in-view { opacity: 1; transform: translateX(0); }
.animate-in-right { opacity: 0; transform: translateX(40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.animate-in-right.in-view { opacity: 1; transform: translateX(0); }
.animate-in-scale { opacity: 0; transform: scale(0.9); transition: opacity 0.7s ease, transform 0.7s ease; }
.animate-in-scale.in-view { opacity: 1; transform: scale(1); }
.timeline-item.animate-in:nth-child(1) { transition-delay: 0s; }
.timeline-item.animate-in:nth-child(2) { transition-delay: 0.1s; }
.timeline-item.animate-in:nth-child(3) { transition-delay: 0.2s; }
.timeline-item.animate-in:nth-child(4) { transition-delay: 0.3s; }
.timeline-item.animate-in:nth-child(5) { transition-delay: 0.4s; }
.timeline-item.animate-in:nth-child(6) { transition-delay: 0.5s; }

/* RESPONSIVE */
@media (max-width: 1200px) {
    .nav-link { padding: 10px 12px; font-size: 0.84rem; }
    .nav-logo { padding: 0 20px; }
    .capability-text { padding: 48px; }
    .hex-item { width: 190px; height: 210px; }
}
@media (max-width: 1024px) {
    .nav-left, .nav-right, .nav-cta { display: none; }
    .hamburger { display: flex; }
    .mobile-menu { display: block; }
    .nav-logo { padding: 0; margin: 0 auto; }
    .hero-slide-content { padding: 0 24px 0 6%; max-width: 560px; }
    .hero-dots { right: 20px; }
    .capability-band, .capability-band.reversed { flex-direction: column; }
    .capability-img { flex: none; height: 300px; }
    .capability-text { flex: none; padding: 40px 32px; }
    .equipment-table-wrap { display: none; }
    .equipment-cards-mobile { display: block; }
    .flip-grid { grid-template-columns: repeat(2, 1fr); }
    .hex-grid, .hex-row { display: none !important; }
    .hex-mobile-grid { display: grid; }
    .stories-grid { grid-template-columns: 1fr 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .cta-cards-row { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
    .section-pad { padding: 64px 0; }
    .metrics-grid { flex-wrap: wrap; }
    .metric-item { flex: 0 0 33.333%; padding: 12px 16px; }
    .metric-item:nth-child(3)::after { display: none; }
    .metric-item:nth-child(4), .metric-item:nth-child(5) { flex: 0 0 50%; }
    .cap-features { grid-template-columns: 1fr; }
    .flip-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .flip-card { height: 280px; }
    .hex-mobile-grid { grid-template-columns: 1fr 1fr; }
    .timeline { padding-left: 48px; }
    .timeline-card { padding: 24px; }
    .docs-grid { grid-template-columns: repeat(2, 1fr); }
    .docs-controls { flex-direction: column; }
    .stories-grid { grid-template-columns: 1fr; }
    .locations-grid { grid-template-columns: 1fr; }
    .cta-cards-row { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .hero-scroll-hint { display: none; }
}
@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero-slide-content h1 { font-size: 2rem; }
    .hero-btns { flex-direction: column; }
    .hero-btns .btn { width: 100%; justify-content: center; }
    .hero-dots { right: 12px; gap: 16px; }
    .hero-dot { width: 36px; height: 36px; }
    .hero-dot svg { width: 36px; height: 36px; }
    .metric-item { flex: 0 0 50% !important; }
    .metric-item:nth-child(5) { flex: 0 0 100% !important; }
    .flip-grid { grid-template-columns: 1fr; }
    .hex-mobile-grid { grid-template-columns: 1fr; }
    .docs-grid { grid-template-columns: 1fr; }
    .timeline { padding-left: 40px; }
    .timeline::before { left: 16px; }
    .timeline-marker { left: -32px; width: 36px; height: 36px; font-size: 0.75rem; }
}

/* SEARCH FUNCTIONALITY */
.nav-actions { display: flex; align-items: center; gap: 16px; margin-left: 16px; }
.search-toggle { background: transparent; border: none; color: var(--text-secondary); font-size: 1rem; cursor: pointer; padding: 8px; transition: color var(--transition-base); }
.search-toggle:hover { color: var(--accent-copper); }

.search-overlay { position: fixed; inset: 0; background: rgba(26, 21, 18, 0.98); z-index: 9999; opacity: 0; visibility: hidden; transition: all var(--transition-base); display: flex; align-items: center; justify-content: center; }
.search-overlay.active { opacity: 1; visibility: visible; }
.search-overlay-content { width: 100%; max-width: 700px; padding: 0 24px; text-align: center; }
.search-close { position: absolute; top: 30px; right: 30px; background: transparent; border: none; color: var(--text-secondary); font-size: 1.5rem; cursor: pointer; transition: color var(--transition-base); }
.search-close:hover { color: var(--accent-copper); }
.search-form { display: flex; gap: 0; margin-bottom: 24px; }
.search-form input { flex: 1; padding: 18px 24px; background: var(--card-bg); border: 2px solid var(--border-color); border-right: none; border-radius: var(--radius-md) 0 0 var(--radius-md); color: var(--text-primary); font-family: var(--font-primary); font-size: 1.1rem; transition: border-color var(--transition-base); }
.search-form input::placeholder { color: var(--text-secondary); }
.search-form input:focus { outline: none; border-color: var(--accent-copper); }
.search-form button { padding: 18px 28px; background: var(--accent-copper); border: none; border-radius: 0 var(--radius-md) var(--radius-md) 0; color: var(--body-bg); font-size: 1.1rem; cursor: pointer; transition: background var(--transition-base); }
.search-form button:hover { background: var(--accent-gold); }
.search-suggestions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; align-items: center; }
.search-suggestions span { color: var(--text-secondary); font-size: 0.9rem; }
.search-suggestions a { padding: 8px 16px; background: var(--elevated-bg); border: 1px solid var(--border-color); border-radius: 20px; color: var(--text-secondary); font-size: 0.85rem; transition: all var(--transition-base); }
.search-suggestions a:hover { border-color: var(--accent-copper); color: var(--accent-copper); }

@media (max-width: 1024px) {
    .nav-actions { display: none; }
}
@media (max-width: 480px) {
    .search-form input { padding: 14px 16px; font-size: 1rem; }
    .search-form button { padding: 14px 20px; }
}