/* ROOT VARIABLES - GOLD AND PREMIUM DARK THEME */
:root {
    --primary-color: #D4AF37; /* Rich Gold */
    --primary-dark: #AA8222;
    --secondary-color: #5C161B; /* Rich Maroon / Burgundy */
    --dark-bg: #1A1A1A; /* Deep Charcoal */
    --light-bg: #FDFBF7; /* Off-white / Cream */
    --text-dark: #333333;
    --text-light: #F4F4F4;
    --transition: 0.3s ease-in-out;
    --font-en: 'Outfit', sans-serif;
    --font-ta: 'Noto Sans Tamil', sans-serif;
}

/* GENERAL RESET & TYPOGRAPHY */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
}

.ta-title, .ta-small, .logo-ta {
    font-family: var(--font-ta);
    font-weight: 400;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* UTILITIES */
.text-center { text-align: center; }
.text-light { color: var(--text-light); }
.w-100 { width: 100%; }

.btn {
    display: inline-block;
    padding: 12px 30px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #000;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(212, 175, 55, 0.4);
}

.btn-secondary {
    background: var(--secondary-color);
    color: var(--text-light);
}

.btn-secondary:hover {
    background: #4A0E13;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(92, 22, 27, 0.4);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: #000;
}

/* GLASSMORPHISM */
.glassmorphism {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
}

.dark-bg {
    background-color: var(--dark-bg);
    color: var(--text-light);
}

/* NAVBAR */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 15px 0;
    z-index: 1000;
    transition: var(--transition);
    background: transparent;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

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

.logo {
    display: flex;
    flex-direction: column;
    color: var(--primary-color);
}

.logo-en {
    font-size: 1.8rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.logo-ta {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-top: -5px;
}

.logo-sub {
    font-size: 0.7rem;
    color: #ccc;
    letter-spacing: 1px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-links li a {
    color: var(--text-light);
    font-weight: 600;
    font-size: 1.1rem;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: var(--transition);
}

.nav-links li a small {
    font-size: 0.7rem;
    font-family: var(--font-ta);
    font-weight: 400;
    color: var(--primary-color);
    opacity: 0.8;
}

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-links li a:hover {
    color: var(--primary-color);
}

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

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger .line {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 5px;
    transition: all 0.3s ease;
}

/* HERO SECTION */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.carousel {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.slide.active {
    opacity: 1;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    animation: zoomInOut 20s infinite alternate;
}

@keyframes zoomInOut {
    0% { transform: scale(1); }
    100% { transform: scale(1.1); }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.4) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    color: var(--text-light);
    max-width: 800px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 10px;
    text-shadow: 2px 2px 10px rgba(0,0,0,0.5);
}

.hero-subtitle {
    font-family: var(--font-ta);
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: #FFF;
}

.hero-desc {
    font-size: 1.2rem;
    margin-bottom: 40px;
    line-height: 1.8;
    color: #E0E0E0;
    max-width: 600px;
}

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

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUpAnim 1s forwards cubic-bezier(0.2, 0.8, 0.2, 1);
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

@keyframes fadeUpAnim {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.carousel-nav {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 15px;
}

.nav-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.nav-dot.active {
    background: var(--primary-color);
    transform: scale(1.3);
}

/* COMMON SECTION STYLES */
.section {
    padding: 100px 0;
}

.section-title-wrapper {
    margin-bottom: 40px;
}

.subtitle {
    display: block;
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.section-title {
    font-size: 2.5rem;
    color: var(--secondary-color);
}

.dark-bg .section-title {
    color: var(--primary-color);
}

.section-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

/* ABOUT SECTION */
.about-section .lead-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.features-list {
    list-style: none;
    margin-top: 30px;
}

.features-list li {
    margin-bottom: 15px;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.features-list .icon {
    font-size: 1.5rem;
}

.section-image {
    position: relative;
    padding: 20px;
}

.section-image img {
    width: 100%;
    border-radius: 8px;
    object-fit: cover;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--primary-color);
    color: #000;
    padding: 20px;
    border-radius: 50%;
    width: 140px;
    height: 140px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.4);
    border: 4px solid var(--light-bg);
}

.experience-badge .years {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
}

.experience-badge .text {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

/* SERVICES SECTION */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.card {
    background: #252525;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    border: 1px solid rgba(255,255,255,0.05);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    border-color: var(--primary-color);
}

.card-image-wrapper {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.card-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.card:hover .card-image-wrapper img {
    transform: scale(1.1);
}

.icon-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 5rem;
    background: #111;
}

.card-content {
    padding: 30px;
}

.card-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
    display: flex;
    flex-direction: column;
}

.card-content p {
    color: #B0B0B0;
    margin-bottom: 25px;
    font-size: 0.95rem;
}

/* CONTACT SECTION */
.contact-section {
    background-color: var(--light-bg);
    position: relative;
}

.info-blocks {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-top: 40px;
}

.info-block h4 {
    color: var(--secondary-color);
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.contact-form-container {
    padding: 40px;
    background: #FFF;
}

.contact-form h3 {
    margin-bottom: 30px;
    color: var(--secondary-color);
    font-size: 1.8rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #E0E0E0;
    border-radius: 6px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background-color: #FAFAFA;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

/* FOOTER */
.footer {
    background: var(--dark-bg);
    color: #888;
    padding: 30px 0;
    border-top: 2px solid var(--primary-dark);
}

.footer p {
    margin-bottom: 5px;
}

/* RESPONSIVE DESIGN */
@media (max-width: 992px) {
    .section-container {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(26, 26, 26, 0.98);
        padding: 20px 0;
        text-align: center;
    }

    .nav-links.active {
        display: flex;
    }

    .hamburger {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
}