:root {
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9;
    --text-main: #0f172a;
    --text-muted: #475569;
    --primary: #4f46e5;
    --secondary: #0d9488;
    --gradient: linear-gradient(135deg, #4f46e5, #0d9488);
    --transition: all 0.3s ease;
}

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

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

body {
    overflow-x: hidden;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.text-gradient {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

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

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

.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient);
    color: #fff;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-main);
    border: 1px solid rgba(0,0,0,0.1);
}

.btn-secondary:hover {
    border-color: var(--primary);
    background: rgba(79, 70, 229, 0.05);
}

.btn-block {
    width: 100%;
}

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

.header.scrolled {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    padding: 16px 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    box-shadow: 0 4px 20px rgba(0,0,0,0.02);
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-img {
    height: 65px;
    max-width: 300px;
    object-fit: contain;
}

.nav-list {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: var(--text-main);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--secondary);
}

.btn-contact {
    padding: 10px 20px;
    background: rgba(0,0,0,0.03);
    border-radius: 6px;
}

.btn-contact:hover {
    background: var(--gradient);
    color: #fff;
}

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

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease-in-out;
    background-color: var(--text-main);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg-glow {
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(79,70,229,0.1) 0%, rgba(248,250,252,0) 70%);
    border-radius: 50%;
    filter: blur(60px);
    z-index: -1;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

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

.hero-video {
    width: 100%;
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    object-fit: cover;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 16px;
}

/* About Section */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-features {
    list-style: none;
    margin-top: 2rem;
}

.about-features li {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.check-icon {
    color: var(--secondary);
    font-weight: bold;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.stat-card {
    background: var(--bg-card);
    padding: 32px 24px;
    border-radius: 16px;
    border: 1px solid rgba(0,0,0,0.05);
    box-shadow: 0 4px 20px rgba(0,0,0,0.02);
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    background: var(--bg-card-hover);
    border-color: rgba(0,0,0,0.1);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    display: inline-block;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-card span {
    font-size: 2rem;
    font-weight: 800;
    color: var(--secondary);
}

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

.service-card {
    background: var(--bg-card);
    padding: 40px 32px;
    border-radius: 20px;
    border: 1px solid rgba(0,0,0,0.05);
    box-shadow: 0 4px 20px rgba(0,0,0,0.02);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    background: var(--bg-card-hover);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
    border-color: rgba(79, 70, 229, 0.2);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-muted);
    line-height: 1.6;
}

/* Contact */
.contact-card {
    background: var(--bg-card);
    border-radius: 24px;
    padding: 60px;
    border: 1px solid rgba(0,0,0,0.05);
    box-shadow: 0 4px 30px rgba(0,0,0,0.03);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.info-item {
    margin-top: 1.5rem;
    font-size: 1.1rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 12px;
}

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

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 16px;
    background: rgba(0,0,0,0.02);
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 8px;
    color: var(--text-main);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}

/* Footer */
.footer {
    padding: 40px 0;
    border-top: 1px solid rgba(0,0,0,0.05);
    text-align: center;
    color: var(--text-muted);
}

/* Animations */
.fade-in-up {
    animation: fadeInUp 1s ease-out forwards;
}

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

.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease-out;
}

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

/* Responsive */
@media (max-width: 992px) {
    .hero-title {
        font-size: 3.5rem;
    }
    .hero-container,
    .about-container,
    .contact-card {
        grid-template-columns: 1fr;
    }
    .hero-content {
        text-align: center;
        margin: 0 auto;
    }
    .hero-cta {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }
    
    .nav-list {
        position: fixed;
        left: -100%;
        top: 80px;
        gap: 0;
        flex-direction: column;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(10px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        border-bottom: 1px solid rgba(0,0,0,0.05);
        box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    }

    .nav-list.active {
        left: 0;
    }

    .nav-link {
        display: block;
        padding: 20px;
        font-size: 1.2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .contact-card {
        padding: 30px;
    }
}