:root {
    /* Deep sky/atmosphere blues */
    --bg-dark: #020f1c;
    --bg-card: #041f3a;
    --bg-card-hover: #082e54;
    
    /* Solar Energy Palette */
    --solar-yellow: #d9634e;
    --solar-orange: #b84c3d;
    --solar-glow: rgba(217, 99, 78, 0.3);
    --solar-glow-strong: rgba(184, 76, 61, 0.5);
    
    /* Text */
    --text-main: #F8FAFC;
    --text-muted: #94A3B8;
    
    /* UI Elements */
    --border-color: #334155;
    
    --container-width: 1224px;
    --transition-fast: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-main);
    background-color: var(--bg-dark);
}

body {
    line-height: 1.7;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

ul {
    list-style: none;
}

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

.text-accent {
    background: linear-gradient(135deg, var(--solar-yellow), var(--solar-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.text-center {
    text-align: center;
}

/* Typography */
h1, h2, h3, h4 {
    line-height: 1.2;
    margin-bottom: 16px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 16px;
    color: var(--text-muted);
}

.lead {
    font-size: 1.25rem;
    max-width: 800px;
    margin: 0 auto 32px;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 24px;
    padding: 6px 14px;
    background: rgba(217, 99, 78, 0.1);
    color: var(--solar-yellow);
    border: 1px solid rgba(217, 99, 78, 0.2);
    border-radius: 30px;
}

.sub-badge {
    display: inline-block;
    font-size: 0.8rem;
    color: var(--solar-yellow);
    letter-spacing: 0.1em;
    margin-bottom: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    letter-spacing: 0.02em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--solar-yellow) 0%, var(--solar-orange) 100%);
    color: #000;
    box-shadow: 0 4px 15px var(--solar-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--solar-glow-strong);
    color: #000;
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--solar-yellow);
    background-color: rgba(217, 99, 78, 0.05);
    color: var(--solar-yellow);
}

.btn-outline {
    background-color: transparent;
    color: var(--solar-yellow);
    border: 1px solid var(--solar-yellow);
    padding: 10px 24px;
    border-radius: 30px;
}

.btn-outline:hover {
    background-color: var(--solar-yellow);
    color: #000;
    box-shadow: 0 4px 15px var(--solar-glow);
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.1rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 24px 0;
    transition: all var(--transition-fast);
}

.navbar.scrolled {
    background: rgba(2, 15, 28, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 16px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

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

.logo img {
    height: 50px;
    display: block;
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 8px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--solar-yellow), var(--solar-orange));
    transition: width var(--transition-fast);
}

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

.nav-links a:hover {
    color: var(--text-main);
}

.hamburger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
}

.hamburger span {
    width: 30px;
    height: 2px;
    background-color: var(--text-main);
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 140px 0 80px;
    background: url('assets/slcuhi-rVHekUtxMPtqg92J.png') center/cover no-repeat;
    background-attachment: fixed;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(2, 15, 28, 0.95) 0%, rgba(2, 15, 28, 0.7) 50%, rgba(184, 76, 61, 0.15) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 850px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-top: 48px;
}

/* General Sections */
section {
    padding: 120px 0;
}

.section-header {
    margin-bottom: 64px;
}

/* Metrics Grid */
.metrics {
    background-color: var(--bg-dark);
    position: relative;
}

.metrics::before {
    content: '';
    position: absolute;
    top: -100px;
    right: 0;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--solar-glow) 0%, transparent 70%);
    opacity: 0.15;
    pointer-events: none;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.metric-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 48px 40px;
    border-radius: 16px;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.metric-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle top right, rgba(217, 99, 78, 0.1), transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.metric-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    border-color: rgba(217, 99, 78, 0.3);
}

.metric-card:hover::after {
    opacity: 1;
}

.metric-card h3 {
    background: linear-gradient(135deg, var(--solar-yellow), var(--solar-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 2.5rem;
    margin-bottom: 24px;
}

/* Services Grid */
.services {
    background-color: var(--bg-card);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(217, 99, 78, 0.3), transparent);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 32px;
}

.service-card {
    background: var(--bg-dark);
    padding: 48px;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.03);
    border-top: 3px solid var(--solar-orange);
    position: relative;
    transition: all var(--transition-slow);
}

.service-card:hover {
    border-color: var(--border-color);
    border-top-color: var(--solar-yellow);
    box-shadow: 0 15px 40px rgba(0,0,0,0.5);
    transform: translateY(-6px);
}

.service-icon {
    font-size: 4rem;
    font-weight: 800;
    color: transparent;
    -webkit-text-stroke: 1px rgba(217, 99, 78, 0.15);
    position: absolute;
    top: 30px;
    right: 40px;
    line-height: 1;
    transition: all var(--transition-slow);
}

.service-card:hover .service-icon {
    -webkit-text-stroke: 1px rgba(217, 99, 78, 0.4);
}

.service-card h3 {
    color: #fff;
    margin-bottom: 32px;
    font-size: 1.6rem;
    padding-right: 60px;
}

.service-card ul li {
    margin-bottom: 20px;
    position: relative;
    padding-left: 28px;
    color: var(--text-muted);
}

.service-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 12px;
    height: 2px;
    background: var(--solar-yellow);
}

.service-card ul li strong {
    color: #F8FAFC;
    display: block;
    margin-bottom: 4px;
}

/* Capabilities Grid */
.capabilities {
    background-color: var(--bg-dark);
    position: relative;
}

.capabilities::before {
    content: '';
    position: absolute;
    bottom: -150px;
    left: -100px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(184, 76, 61, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.capability-card {
    background: linear-gradient(160deg, var(--bg-card) 0%, rgba(4, 31, 58, 0.4) 100%);
    padding: 56px 48px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: transform var(--transition-slow), border-color var(--transition-fast);
}

.capability-card:hover {
    transform: scale(1.02);
    border-color: rgba(217, 99, 78, 0.3);
}

/* CTA */
.cta {
    background: linear-gradient(135deg, var(--solar-orange) 0%, var(--solar-yellow) 100%);
    color: #000;
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.cta::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" opacity="0.05"><circle cx="50" cy="50" r="40" fill="none" stroke="%23000" stroke-width="2"/></svg>') center/cover;
}

.cta .container {
    position: relative;
    z-index: 10;
}

.cta h2 {
    color: #000;
}

.cta p {
    color: rgba(0,0,0,0.75);
    font-weight: 500;
}

.cta .btn-primary {
    background: #000;
    color: var(--solar-yellow);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.cta .btn-primary:hover {
    background: #1a1a1a;
    color: #fff;
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
}

/* Footer */
footer {
    background-color: var(--bg-dark);
    padding: 100px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 80px;
    margin-bottom: 80px;
}

.footer-brand h3 {
    margin-bottom: 20px;
    font-size: 1.8rem;
}

.footer-brand .established {
    margin-top: 32px;
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    color: var(--solar-yellow);
    font-weight: 600;
}

.footer-links ul li {
    margin-bottom: 16px;
}

.footer-links a,
.footer-contact a {
    color: var(--text-muted);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--solar-yellow);
}

.footer-contact h4,
.footer-links h4 {
    margin-bottom: 24px;
    font-size: 1.2rem;
}

.footer-contact p {
    margin-bottom: 12px;
    color: var(--text-muted);
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.05);
    font-size: 0.85rem;
    color: var(--border-color);
}

/* Floating PDF Button */
.floating-pdf-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(135deg, var(--solar-yellow), var(--solar-orange));
    color: #000;
    padding: 16px 28px;
    border-radius: 50px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 10px 25px var(--solar-glow);
    z-index: 999;
    transition: all var(--transition-fast);
}

.floating-pdf-btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 35px var(--solar-glow-strong);
}

.floating-pdf-btn .icon {
    font-size: 1.2rem;
}

/* Scroll Animations */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-content h1 { font-size: 3.5rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 60px; }
    .services-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(2, 15, 28, 0.98);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: right var(--transition-slow);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        margin: 24px 0;
    }

    .nav-links a {
        font-size: 1.5rem;
    }

    .hamburger {
        display: flex;
        z-index: 1001;
    }

    .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
    .hamburger.active span:nth-child(2) { opacity: 0; }
    .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

    .navbar .btn-outline { display: none; }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }

    .footer-grid { grid-template-columns: 1fr; gap: 40px; }
    
    .floating-pdf-btn {
        bottom: 20px;
        right: 20px;
        padding: 14px 24px;
        font-size: 0.95rem;
    }
}