/* ============================================
   PRAKASH INFRACORP — PREMIUM DESIGN SYSTEM
   ============================================ */

/* ---------- CSS CUSTOM PROPERTIES ---------- */
:root {
    /* Primary Colors */
    --charcoal: #1a1a1a;
    --charcoal-light: #2a2a2a;
    --charcoal-medium: #333333;
    --dark-bg: #0d0d0d;

    /* Gold Palette */
    --gold: #c9a84c;
    --gold-light: #e0c76a;
    --gold-dark: #a68a3a;
    --gold-gradient: linear-gradient(135deg, #c9a84c, #e0c76a, #d4af37, #c9a84c);
    --gold-shimmer: linear-gradient(90deg, #c9a84c 0%, #f0d77d 25%, #c9a84c 50%, #f0d77d 75%, #c9a84c 100%);

    /* Neutrals */
    --white: #ffffff;
    --off-white: #f5f5f0;
    --gray-100: #f0ede6;
    --gray-200: #e0dcd4;
    --gray-300: #b8b4ac;
    --gray-400: #8a8680;
    --gray-500: #6b6760;
    --gray-600: #4a4640;

    /* Glass */
    --glass-bg: rgba(26, 26, 26, 0.7);
    --glass-border: rgba(201, 168, 76, 0.2);
    --glass-light: rgba(255, 255, 255, 0.05);

    /* Typography */
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, sans-serif;

    /* Spacing */
    --section-padding: 100px 0;

    /* Transitions */
    --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-fast: all 0.25s ease;
    --transition-slow: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);

    /* Shadows */
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.25);
    --shadow-gold: 0 8px 30px rgba(201, 168, 76, 0.2);
    --shadow-gold-lg: 0 15px 50px rgba(201, 168, 76, 0.3);
}

/* ---------- RESET & BASE ---------- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-body);
    background-color: var(--off-white);
    color: var(--charcoal);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--section-padding);
    position: relative;
    overflow: hidden;
}

/* ---------- GOLD / UTILITY CLASSES ---------- */
.gold-text {
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 15px;
}

.section-tag i {
    font-size: 0.75rem;
}

.section-tag.light {
    color: var(--gold-light);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--charcoal);
    margin-bottom: 20px;
}

.section-title.light {
    color: var(--white);
}

.section-desc {
    font-size: 1.05rem;
    color: var(--gray-500);
    max-width: 600px;
    line-height: 1.8;
}

.section-desc.light {
    color: var(--gray-300);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header .section-desc {
    margin: 0 auto;
}

/* ---------- BUTTONS ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 32px;
    border-radius: 50px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-gold {
    background: var(--gold-gradient);
    color: var(--charcoal);
    box-shadow: var(--shadow-gold);
}

.btn-gold:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-gold-lg);
}

.btn-gold i {
    transition: transform 0.3s ease;
}

.btn-gold:hover i {
    transform: translateX(4px);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    border-color: var(--gold);
    color: var(--gold);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(201, 168, 76, 0.15);
}

.btn-outline-light {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-outline-light:hover {
    background: var(--white);
    color: var(--charcoal);
    transform: translateY(-3px);
}

.btn-lg {
    padding: 18px 40px;
    font-size: 1rem;
}

/* ---------- PRELOADER ---------- */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

#preloader.loaded {
    opacity: 0;
    visibility: hidden;
}

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

.preloader-logo {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin-bottom: 30px;
    animation: preloaderPulse 2s ease-in-out infinite;
    border-radius: 12px;
}

@keyframes preloaderPulse {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.05); opacity: 1; }
}

.preloader-bar {
    width: 200px;
    height: 3px;
    background: var(--charcoal-light);
    border-radius: 3px;
    overflow: hidden;
    margin: 0 auto;
}

.preloader-progress {
    width: 0%;
    height: 100%;
    background: var(--gold-gradient);
    border-radius: 3px;
    animation: preloaderBar 1.8s ease-in-out forwards;
}

@keyframes preloaderBar {
    0% { width: 0%; }
    100% { width: 100%; }
}

/* ---------- NAVBAR ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(20px);
    padding: 12px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(201, 168, 76, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo img {
    width: 45px;
    height: 45px;
    border-radius: 8px;
    object-fit: cover;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 1px;
}

.logo-sub {
    font-size: 0.65rem;
    color: var(--gold);
    letter-spacing: 3px;
    text-transform: uppercase;
    font-weight: 500;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 35px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.75);
    letter-spacing: 0.5px;
    position: relative;
    padding: 5px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gold-gradient);
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
}

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

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: var(--gold-gradient);
    color: var(--charcoal);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.hamburger span {
    width: 28px;
    height: 2px;
    background: var(--white);
    transition: var(--transition-fast);
    border-radius: 2px;
}

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

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

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

/* ---------- HERO ---------- */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-parallax {
    position: absolute;
    top: -10%;
    left: 0;
    width: 100%;
    height: 120%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    will-change: transform;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(13, 13, 13, 0.92) 0%,
        rgba(26, 26, 26, 0.8) 40%,
        rgba(13, 13, 13, 0.85) 100%
    );
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--gold);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat 6s ease-in-out infinite;
}

@keyframes particleFloat {
    0% { opacity: 0; transform: translateY(100vh) scale(0); }
    30% { opacity: 0.6; }
    70% { opacity: 0.3; }
    100% { opacity: 0; transform: translateY(-100px) scale(1); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 20px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 24px;
    background: rgba(201, 168, 76, 0.1);
    border: 1px solid rgba(201, 168, 76, 0.3);
    border-radius: 50px;
    color: var(--gold-light);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 1px;
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
    animation: fadeInDown 1s ease 0.3s both;
}

.hero-badge i {
    color: var(--gold);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 25px;
    animation: fadeInUp 1s ease 0.5s both;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--gray-300);
    line-height: 1.8;
    margin-bottom: 40px;
    animation: fadeInUp 1s ease 0.7s both;
}

.hero-btns {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 60px;
    animation: fadeInUp 1s ease 0.9s both;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    animation: fadeInUp 1s ease 1.1s both;
    flex-wrap: wrap;
}

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

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-plus {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 5px;
}

.hero-stat-divider {
    width: 1px;
    height: 50px;
    background: rgba(201, 168, 76, 0.3);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--gray-400);
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    animation: fadeInUp 1s ease 1.3s both;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid rgba(201, 168, 76, 0.4);
    border-radius: 14px;
    position: relative;
}

.mouse-wheel {
    width: 4px;
    height: 8px;
    background: var(--gold);
    border-radius: 4px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheel 2s ease-in-out infinite;
}

@keyframes scrollWheel {
    0% { transform: translateX(-50%) translateY(0); opacity: 1; }
    100% { transform: translateX(-50%) translateY(12px); opacity: 0; }
}

/* ---------- ABOUT ---------- */
.about {
    background: var(--off-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-images {
    position: relative;
}

.about-img-main {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.about-img-main img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.about-img-main:hover img {
    transform: scale(1.05);
}

.about-img-float {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 200px;
    height: 200px;
    border-radius: 16px;
    overflow: hidden;
    border: 5px solid var(--off-white);
    box-shadow: var(--shadow-md);
}

.about-img-float img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-experience-badge {
    position: absolute;
    top: -20px;
    left: -20px;
    width: 120px;
    height: 120px;
    background: var(--gold-gradient);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-gold-lg);
    animation: badgePulse 3s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% { box-shadow: var(--shadow-gold); }
    50% { box-shadow: var(--shadow-gold-lg); }
}

.exp-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    color: var(--charcoal);
    line-height: 1;
}

.exp-text {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--charcoal);
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
    line-height: 1.3;
}

.about-content .section-title {
    margin-bottom: 25px;
}

.about-text {
    font-size: 1rem;
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: 15px;
}

.about-text strong {
    color: var(--charcoal);
}

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 30px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--white);
    border-radius: 12px;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.highlight-item:hover {
    border-color: var(--gold);
    box-shadow: var(--shadow-gold);
    transform: translateY(-3px);
}

.highlight-icon {
    width: 45px;
    height: 45px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(201, 168, 76, 0.1), rgba(201, 168, 76, 0.05));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.highlight-item h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--charcoal);
    margin-bottom: 2px;
}

.highlight-item p {
    font-size: 0.8rem;
    color: var(--gray-400);
}

/* ---------- SERVICES ---------- */
.services {
    background: var(--dark-bg);
    padding: 100px 0;
}

.services .section-title {
    color: var(--white);
}

.services .section-desc {
    color: var(--gray-400);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    position: relative;
    background: rgba(42, 42, 42, 0.5);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(201, 168, 76, 0.1);
    border-radius: 20px;
    padding: 40px 30px;
    transition: var(--transition);
    animation-delay: var(--delay);
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gold-gradient);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

.service-card:hover {
    transform: translateY(-10px);
    border-color: rgba(201, 168, 76, 0.3);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 30px rgba(201, 168, 76, 0.05);
}

.service-card.featured {
    border-color: rgba(201, 168, 76, 0.3);
    background: rgba(201, 168, 76, 0.05);
}

.service-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 4px 14px;
    background: var(--gold-gradient);
    color: var(--charcoal);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: 20px;
}

.service-icon-wrap {
    position: relative;
    width: 70px;
    height: 70px;
    margin-bottom: 25px;
}

.service-icon {
    width: 70px;
    height: 70px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(201, 168, 76, 0.15), rgba(201, 168, 76, 0.05));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--gold);
    position: relative;
    z-index: 1;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--gold-gradient);
    color: var(--charcoal);
    transform: scale(1.1) rotate(5deg);
}

.service-icon-bg {
    position: absolute;
    top: -10px;
    left: -10px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(201, 168, 76, 0.05);
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.92rem;
    color: var(--gray-400);
    line-height: 1.7;
    margin-bottom: 20px;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 25px;
}

.service-features span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--gray-300);
}

.service-features i {
    color: var(--gold);
    font-size: 0.7rem;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--gold);
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition-fast);
}

.service-link i {
    transition: transform 0.3s ease;
}

.service-link:hover {
    color: var(--gold-light);
}

.service-link:hover i {
    transform: translateX(5px);
}

/* ---------- PROJECTS ---------- */
.projects {
    background: var(--off-white);
}

.project-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 28px;
    border: 2px solid var(--gray-200);
    background: var(--white);
    border-radius: 50px;
    font-family: var(--font-body);
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--gray-500);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover {
    border-color: var(--gold);
    color: var(--gold);
}

.filter-btn.active {
    background: var(--gold-gradient);
    border-color: transparent;
    color: var(--charcoal);
    font-weight: 600;
    box-shadow: var(--shadow-gold);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.project-card {
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition-slow);
}

.project-card.hidden {
    display: none;
}

.project-img {
    position: relative;
    height: 280px;
    overflow: hidden;
    border-radius: 16px;
}

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

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

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg,
        rgba(13, 13, 13, 0) 0%,
        rgba(13, 13, 13, 0.85) 100%
    );
    display: flex;
    align-items: flex-end;
    padding: 25px;
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-info {
    transform: translateY(20px);
    transition: transform 0.4s ease;
}

.project-card:hover .project-info {
    transform: translateY(0);
}

.project-cat {
    display: inline-block;
    padding: 4px 14px;
    background: var(--gold-gradient);
    color: var(--charcoal);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: 20px;
    margin-bottom: 10px;
}

.project-info h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    color: var(--white);
    margin-bottom: 5px;
}

.project-info p {
    font-size: 0.85rem;
    color: var(--gray-300);
}

/* ---------- WHY CHOOSE US ---------- */
.why-us {
    position: relative;
    padding: 120px 0;
}

.why-us-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.why-us-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(13, 13, 13, 0.95), rgba(26, 26, 26, 0.92));
}

.why-us .container {
    position: relative;
    z-index: 2;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.why-card {
    text-align: center;
    padding: 45px 30px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(201, 168, 76, 0.1);
    transition: var(--transition);
    animation-delay: var(--delay);
}

.why-card:hover {
    background: rgba(201, 168, 76, 0.05);
    border-color: rgba(201, 168, 76, 0.3);
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.why-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(201, 168, 76, 0.15), rgba(201, 168, 76, 0.05));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--gold);
    margin: 0 auto 25px;
    transition: var(--transition);
}

.why-card:hover .why-icon {
    background: var(--gold-gradient);
    color: var(--charcoal);
    transform: scale(1.1);
}

.why-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--white);
    margin-bottom: 12px;
}

.why-card p {
    font-size: 0.92rem;
    color: var(--gray-400);
    line-height: 1.7;
}

/* ---------- CTA SECTION ---------- */
.cta-section {
    background: var(--gold-gradient);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
}

.cta-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
}

.cta-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    position: relative;
    z-index: 2;
}

.cta-text h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 700;
    color: var(--charcoal);
    line-height: 1.3;
    margin-bottom: 10px;
}

.cta-text h2 .gold-text {
    background: linear-gradient(135deg, var(--charcoal), #333);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-text p {
    font-size: 1.05rem;
    color: rgba(26, 26, 26, 0.7);
}

.cta-actions {
    display: flex;
    gap: 15px;
    flex-shrink: 0;
    flex-wrap: wrap;
}

.cta-actions .btn-gold {
    background: var(--charcoal);
    color: var(--gold);
    box-shadow: var(--shadow-lg);
}

.cta-actions .btn-gold:hover {
    background: var(--dark-bg);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.cta-actions .btn-outline-light {
    border-color: var(--charcoal);
    color: var(--charcoal);
}

.cta-actions .btn-outline-light:hover {
    background: var(--charcoal);
    color: var(--gold);
}

/* ---------- CONTACT ---------- */
.contact {
    background: var(--off-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 50px;
    align-items: start;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 25px;
    background: var(--white);
    border-radius: 16px;
    border: 1px solid var(--gray-200);
    margin-bottom: 15px;
    transition: var(--transition);
}

.contact-card:hover {
    border-color: var(--gold);
    box-shadow: var(--shadow-gold);
    transform: translateX(5px);
}

.contact-card-icon {
    width: 55px;
    height: 55px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(201, 168, 76, 0.15), rgba(201, 168, 76, 0.05));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold);
    font-size: 1.2rem;
    flex-shrink: 0;
    transition: var(--transition);
}

.contact-card:hover .contact-card-icon {
    background: var(--gold-gradient);
    color: var(--charcoal);
}

.contact-card h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--charcoal);
    margin-bottom: 3px;
}

.contact-card a,
.contact-card p {
    font-size: 0.92rem;
    color: var(--gray-500);
    line-height: 1.5;
}

.contact-card a:hover {
    color: var(--gold);
}

.contact-socials {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.social-link {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--gray-500);
    transition: var(--transition);
    background: var(--white);
}

.social-link:hover {
    background: var(--gold-gradient);
    border-color: transparent;
    color: var(--charcoal);
    transform: translateY(-4px);
    box-shadow: var(--shadow-gold);
}

.social-link.whatsapp:hover {
    background: #25D366;
    color: var(--white);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.3);
}

.map-wrapper {
    width: 100%;
    height: 100%;
    min-height: 450px;
    border-radius: 20px;
    overflow: hidden;
    border: 2px solid var(--gray-200);
    box-shadow: var(--shadow-md);
}

.map-wrapper iframe {
    width: 100%;
    height: 100%;
    min-height: 450px;
}

/* ---------- FOOTER ---------- */
.footer {
    background: var(--dark-bg);
}

.footer-top {
    padding: 80px 0 50px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 50px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo img {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    object-fit: cover;
}

.footer-logo-name {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--white);
}

.footer-logo-sub {
    display: block;
    font-size: 0.65rem;
    color: var(--gold);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.footer-brand p {
    font-size: 0.92rem;
    color: var(--gray-400);
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-socials {
    display: flex;
    gap: 10px;
}

.footer-socials a {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    font-size: 0.95rem;
    transition: var(--transition);
}

.footer-socials a:hover {
    background: var(--gold-gradient);
    border-color: transparent;
    color: var(--charcoal);
    transform: translateY(-3px);
}

.footer-links-group h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--white);
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 12px;
}

.footer-links-group h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--gold-gradient);
}

.footer-links-group li {
    margin-bottom: 12px;
}

.footer-links-group a {
    font-size: 0.92rem;
    color: var(--gray-400);
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.footer-links-group a::before {
    content: '';
    width: 0;
    height: 1px;
    background: var(--gold);
    transition: width 0.3s ease;
}

.footer-links-group a:hover {
    color: var(--gold);
    transform: translateX(5px);
}

.footer-links-group a:hover::before {
    width: 15px;
}

.footer-contact h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--white);
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 12px;
}

.footer-contact h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--gold-gradient);
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 15px;
    font-size: 0.92rem;
    color: var(--gray-400);
}

.footer-contact-item i {
    color: var(--gold);
    margin-top: 4px;
    width: 16px;
    flex-shrink: 0;
}

.footer-contact-item a {
    color: var(--gray-400);
}

.footer-contact-item a:hover {
    color: var(--gold);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 20px 0;
}

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

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--gray-500);
}

.footer-bottom i {
    font-size: 0.8rem;
}

/* ---------- WHATSAPP FLOAT ---------- */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--white);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition);
    animation: whatsappPulse 2s ease-in-out infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 35px rgba(37, 211, 102, 0.5);
}

@keyframes whatsappPulse {
    0%, 100% { box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 8px 25px rgba(37, 211, 102, 0.6), 0 0 0 10px rgba(37, 211, 102, 0.1); }
}

/* ---------- BACK TO TOP ---------- */
.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--charcoal);
    border: 1px solid rgba(201, 168, 76, 0.2);
    color: var(--gold);
    font-size: 1rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 998;
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--gold-gradient);
    color: var(--charcoal);
    transform: translateY(-3px);
    box-shadow: var(--shadow-gold);
}

/* ---------- ANIMATION KEYFRAMES ---------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scroll Reveal Classes */
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 0;
    transition: var(--transition-slow);
}

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

.reveal-left {
    transform: translateX(-50px);
}

.reveal-right {
    transform: translateX(50px);
}

.reveal-up.revealed,
.reveal-left.revealed,
.reveal-right.revealed {
    opacity: 1;
    transform: translate(0, 0);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-grid {
        gap: 50px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 70px 0;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 350px;
        height: 100vh;
        background: rgba(13, 13, 13, 0.98);
        backdrop-filter: blur(30px);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 40px;
        gap: 25px;
        transition: right 0.4s ease;
        border-left: 1px solid rgba(201, 168, 76, 0.15);
    }

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

    .nav-link {
        font-size: 1.1rem;
    }

    .nav-cta {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .hero-title {
        font-size: clamp(2rem, 7vw, 3.2rem);
    }

    .hero-stats {
        gap: 25px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-img-float {
        right: 10px;
        bottom: -20px;
        width: 150px;
        height: 150px;
    }

    .about-experience-badge {
        width: 100px;
        height: 100px;
        top: -15px;
        left: -10px;
    }

    .exp-number {
        font-size: 1.6rem;
    }

    .about-highlights {
        grid-template-columns: 1fr;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .why-grid {
        grid-template-columns: 1fr;
    }

    .cta-content {
        flex-direction: column;
        text-align: center;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 35px;
    }

    .footer-bottom .container {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }

    .scroll-indicator {
        display: none;
    }

    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 52px;
        height: 52px;
        font-size: 1.5rem;
    }

    .back-to-top {
        bottom: 80px;
        right: 22px;
        width: 42px;
        height: 42px;
    }
}

@media (max-width: 480px) {
    .hero {
        min-height: 100vh;
    }

    .hero-badge {
        font-size: 0.75rem;
        padding: 8px 16px;
    }

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

    .hero-btns .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .hero-stat-divider {
        width: 50px;
        height: 1px;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .project-img {
        height: 220px;
    }

    .filter-btn {
        padding: 8px 20px;
        font-size: 0.82rem;
    }
}

/* ---------- MEDIA QUERY: PREFERS REDUCED MOTION ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .hero-parallax {
        background-attachment: scroll;
    }

    .why-us-bg {
        background-attachment: scroll;
    }
}