:root {
    /* Colors inspired by the logo (Dark Navy and Teal/Sage) */
    --primary-color: #A3C2C2; /* Soft Teal from leaves */
    --primary-dark: #7CA1A1;
    --bg-dark: #1E252D; /* Dark navy background */
    --bg-darker: #151A20; 
    --text-main: #E2E8F0;
    --text-muted: #94A3B8;
    --accent: #D4AF37; /* Optional gold accent for a premium feel */
    
    /* Typography */
    --font-heading: 'Cinzel', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
}

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

p {
    margin-bottom: 1rem;
    font-size: 1.05rem;
    font-weight: 300;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-padding {
    padding: 6rem 0;
}

.bg-darker {
    background-color: var(--bg-darker);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-family: var(--font-body);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 4px;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--bg-darker);
}

.btn-primary:hover {
    background-color: transparent;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    padding: 1rem 0;
}

header.scrolled {
    background-color: rgba(21, 26, 32, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    padding: 0.5rem 0;
}

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

.logo img {
    height: 90px;
    width: auto;
    border-radius: 4px;
    transition: var(--transition);
}

header.scrolled .logo img {
    height: 70px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-main);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-video-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.hero-video-bg video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(30, 37, 45, 0.7), rgba(15, 19, 24, 0.95));
    z-index: 0;
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--text-main);
    font-weight: 300;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    border: 1px solid rgba(163, 194, 194, 0.2);
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--bg-dark);
    padding: 2.5rem 2rem;
    border-radius: 8px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--primary-color);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.5);
    border-color: rgba(163, 194, 194, 0.3);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 0;
}

/* Infrastructure */
.infra-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.infra-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.subsection-title {
    color: var(--text-main);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* Gallery Section */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.gallery-item {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 4px;
    transition: var(--transition);
    cursor: pointer;
}

.gallery-item:hover {
    transform: scale(1.03);
    box-shadow: 0 10px 20px rgba(0,0,0,0.5);
}

/* Contact Section */
.contact-card {
    background-color: var(--bg-darker);
    padding: 4rem;
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    border: 1px solid rgba(255, 255, 255, 0.05);
    max-width: 800px;
    margin: 0 auto;
}

.contact-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.contact-item i {
    font-size: 2rem;
    color: var(--primary-color);
}

.contact-item h4 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.whatsapp-link {
    color: var(--text-main);
    text-decoration: none;
    transition: var(--transition);
}

.whatsapp-link:hover {
    color: var(--primary-color);
}

/* Footer */
footer {
    background-color: #0F1318;
    padding: 3rem 0;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-logo {
    height: 120px;
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

/* WhatsApp Float */
.whatsapp-float-container {
    position: fixed;
    bottom: 40px;
    right: 40px;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 10px;
}

.whatsapp-float-text {
    background-color: #25d366;
    color: white;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.95rem;
    font-weight: 500;
    box-shadow: 2px 2px 3px #999;
}

.whatsapp-float {
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 3px #999;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    color: #FFF;
}

/* Animations */
.fade-in-up, .fade-in-left, .fade-in-right {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    will-change: opacity, visibility;
}

.fade-in-up {
    transform: translateY(40px);
}

.fade-in-left {
    transform: translateX(-40px);
}

.fade-in-right {
    transform: translateX(40px);
}

.fade-in-up.appear, .fade-in-left.appear, .fade-in-right.appear {
    opacity: 1;
    visibility: visible;
    transform: translate(0);
}

/* Responsive */
@media (max-width: 992px) {
    .about-grid, .infra-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .infra-grid {
        display: flex;
        flex-direction: column-reverse;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--bg-darker);
        flex-direction: column;
        align-items: center;
        padding: 2rem 0;
        gap: 1.5rem;
        clip-path: circle(0% at top right);
        transition: clip-path 0.5s ease-in-out;
    }

    .nav-links.active {
        clip-path: circle(150% at top right);
    }

    .hamburger {
        display: block;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .contact-card {
        padding: 2rem;
    }
}

/* Hero Logo Large */
.hero-logo-large {
    max-width: 90%;
    height: auto;
    max-height: 250px;
    margin-bottom: 2rem;
    filter: drop-shadow(0 15px 25px rgba(0,0,0,0.6));
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    animation: bounce 2s infinite;
}

.scroll-indicator a {
    color: var(--primary-color);
    font-size: 2.5rem;
    opacity: 0.8;
    transition: var(--transition);
}

.scroll-indicator a:hover {
    opacity: 1;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
    40% { transform: translateY(-20px) translateX(-50%); }
    60% { transform: translateY(-10px) translateX(-50%); }
}

/* Carousel */
.about-carousel {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.carousel-container {
    position: relative;
    width: 100%;
    height: 500px;
    background-color: var(--bg-darker);
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.carousel-slide.active {
    opacity: 1;
    z-index: 1;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.6);
    color: white;
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 2;
    transition: background 0.3s;
    font-size: 18px;
}

.carousel-btn:hover {
    background: var(--primary-color);
}

.prev-btn { left: 15px; }
.next-btn { right: 15px; }

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    z-index: 9999;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    align-items: center;
    justify-content: center;
}

.lightbox.active {
    display: flex;
}

.lightbox-content-wrapper {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.lightbox-content {
    max-width: 100%;
    max-height: 90vh;
    border-radius: 4px;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 10000;
}

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

.lightbox-btn {
    background: rgba(0,0,0,0.5);
    color: white;
    border: none;
    font-size: 30px;
    width: 60px;
    height: 60px;
    cursor: pointer;
    transition: background 0.3s;
    border-radius: 50%;
    margin: 0 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.lightbox-btn:hover {
    background: var(--primary-color);
}

.lightbox-trigger {
    cursor: pointer;
}