/* ============================================
   CSS Variables
============================================ */
:root {
    --primary: #1a1a2e;
    --secondary: #16213e;
    --accent: #e94560;
    --light: #ffffff;
    --gray: #f5f5f5;
    --text: #333333;
    --text-light: #666666;
}

/* ============================================
   Reset & Base Styles
============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text);
    overflow-x: hidden;
}

/* ============================================
   Animations Keyframes
============================================ */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(60px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-80px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(80px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

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

@keyframes countUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   Scroll Animation Classes
============================================ */
.animate-on-scroll {
    opacity: 0;
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.from-left { transform: translateX(-80px); }
.animate-on-scroll.from-right { transform: translateX(80px); }
.animate-on-scroll.from-bottom { transform: translateY(60px); }
.animate-on-scroll.scale-up { transform: scale(0.8); }

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateX(0) translateY(0) scale(1);
}

/* Stagger delays */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* ============================================
   Navigation
============================================ */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
    animation: slideDown 0.8s ease-out;
}

nav .logo img {
    height: 50px;
    transition: transform 0.3s;
}

nav .logo:hover img {
    transform: scale(1.05);
}

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

nav ul li {
    position: relative;
}

nav ul li a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: color 0.3s;
    padding: 0.5rem 0;
}

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

nav ul li a:hover {
    color: var(--accent);
}

nav ul li a:hover::after {
    width: 100%;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--primary);
    transition: 0.3s;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    padding: 1rem;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    z-index: 999;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu ul {
    list-style: none;
}

.mobile-menu ul li {
    padding: 1rem 0;
    border-bottom: 1px solid #eee;
}

.mobile-menu ul li a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
}

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

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

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.85) 0%, rgba(22, 33, 62, 0.7) 100%);
}

.hero-content {
    position: relative;
    text-align: center;
    color: white;
    max-width: 900px;
    padding: 0 2rem;
}

.hero-content h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease-out 0.3s both;
    line-height: 1.1;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.5s both;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 1s ease-out 0.7s both;
}

.btn {
    padding: 1rem 2.5rem;
    font-size: 1rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: transparent;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(233, 69, 96, 0.3);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: var(--primary);
    transform: translateY(-3px);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: fadeIn 1s ease-out 1s both;
}

.scroll-indicator .mouse {
    width: 30px;
    height: 50px;
    border: 2px solid white;
    border-radius: 25px;
    display: flex;
    justify-content: center;
    padding-top: 10px;
}

.scroll-indicator .wheel {
    width: 6px;
    height: 10px;
    background: white;
    border-radius: 3px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(15px); }
}

/* ============================================
   About Section
============================================ */
.about {
    padding: 100px 5%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.about-content h2 {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.about-content p {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: 20px;
    bottom: 20px;
    border: 3px solid var(--accent);
    border-radius: 20px;
    z-index: -1;
}

/* ============================================
   Services Section
============================================ */
.services {
    background: var(--gray);
    padding: 100px 5%;
}

.services h2 {
    text-align: center;
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 60px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
}

.service-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.service-card .image-container {
    height: 200px;
    overflow: hidden;
}

.service-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.service-card .content {
    padding: 1.5rem;
}

.service-card h3 {
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.service-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ============================================
   Stats Section
============================================ */
.stats {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    padding: 80px 5%;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.stat-item {
    text-align: center;
    color: white;
}

.stat-item h3 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #fff 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-item p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* ============================================
   Global Reach Section
============================================ */
.global-reach {
    padding: 100px 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.global-reach h2 {
    text-align: center;
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 40px;
}

.tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 40px;
}

.tab-btn {
    padding: 0.8rem 2rem;
    border: 2px solid var(--primary);
    background: transparent;
    color: var(--primary);
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.tab-btn:hover,
.tab-btn.active {
    background: var(--primary);
    color: white;
}

.tab-content {
    background: var(--gray);
    padding: 40px;
    border-radius: 20px;
}

.tab-content h3 {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.tab-content p {
    color: var(--text-light);
    margin-bottom: 1rem;
    line-height: 1.8;
}

/* ============================================
   Approach Section
============================================ */
section {
    padding: 100px 5%;
    max-width: 1400px;
    margin: 0 auto;
}

section h2 {
    text-align: center;
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 60px;
}

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

.approach-card {
    position: relative;
    height: 450px;
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
}

.approach-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.approach-card .step-number {
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 3rem;
    font-weight: 700;
    color: white;
    opacity: 0.5;
    z-index: 2;
}

.approach-card .overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px;
    background: linear-gradient(transparent, rgba(0,0,0,0.9));
    color: white;
    transform: translateY(60px);
    transition: transform 0.4s ease;
}

.approach-card:hover .overlay {
    transform: translateY(0);
}

.approach-card .overlay h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.approach-card .overlay p {
    font-size: 0.95rem;
    opacity: 0;
    transition: opacity 0.3s ease 0.1s;
}

.approach-card:hover .overlay p {
    opacity: 0.9;
}

/* ============================================
   News Section
============================================ */
.news-section {
    background: var(--gray);
    padding: 100px 5%;
}

.news-section h2 {
    text-align: center;
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 60px;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.news-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    transition: transform 0.4s ease;
}

.news-card:hover {
    transform: translateY(-10px);
}

.news-card .image-container {
    height: 250px;
    overflow: hidden;
}

.news-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.news-card .content {
    padding: 1.5rem;
}

.news-card .date {
    color: var(--accent);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.news-card h3 {
    font-size: 1.2rem;
    color: var(--primary);
    line-height: 1.4;
}

/* ============================================
   Footer
============================================ */
footer {
    background: var(--primary);
    color: white;
    padding: 60px 5% 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    max-width: 1400px;
    margin: 0 auto 40px;
}

.footer-grid h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: white;
}

.footer-grid a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    display: inline-block;
    margin-bottom: 0.5rem;
    transition: color 0.3s;
}

.footer-grid a:hover {
    color: var(--accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* ============================================
   Page Header
============================================ */
.page-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    padding: 150px 5% 80px;
    text-align: center;
    color: white;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* ============================================
   Content Section
============================================ */
.content-section {
    padding: 80px 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.content-section h2 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.content-section p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

/* ============================================
   Contact Form
============================================ */
.contact-form {
    background: var(--gray);
    padding: 40px;
    border-radius: 20px;
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1rem;
    border: 2px solid #ddd;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* ============================================
   Cards Grid
============================================ */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    transition: transform 0.4s ease;
}

.card:hover {
    transform: translateY(-10px);
}

.card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card .card-content {
    padding: 1.5rem;
}

.card h3 {
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ============================================
   Responsive Design
============================================ */
@media (max-width: 1024px) {
    .services-grid,
    .approach-grid,
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    nav ul {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .services-grid,
    .approach-grid,
    .news-grid,
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .tabs {
        flex-wrap: wrap;
    }
    
    section h2,
    .services h2,
    .global-reach h2,
    .news-section h2 {
        font-size: 2rem;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
}