/* ===== CSS Variables ===== */
:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #6366f1;
    --accent: #14b8a6;
    --accent-light: #2dd4bf;
    --dark: #0f172a;
    --gray-900: #1e293b;
    --gray-800: #334155;
    --gray-600: #475569;
    --gray-400: #94a3b8;
    --gray-200: #e2e8f0;
    --gray-100: #f1f5f9;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--gray-800);
    line-height: 1.6;
    background: var(--white);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

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

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 4px 14px 0 rgba(79, 70, 229, 0.39);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.23);
}

.btn-outline {
    background: transparent;
    color: var(--gray-800);
    border: 2px solid var(--gray-200);
}

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

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

.btn-white:hover {
    background: var(--gray-100);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

.btn-full {
    width: 100%;
}

/* ===== Badges ===== */
.section-badge {
    display: inline-block;
    padding: 6px 14px;
    background: var(--primary-light);
    color: var(--white);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 20px;
    margin-bottom: 16px;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
}

.nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-text {
    font-size: 24px;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-badge {
    font-size: 10px;
    font-weight: 700;
    padding: 2px 8px;
    background: var(--accent);
    color: var(--white);
    border-radius: 4px;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    transition: color 0.2s;
}

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

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 24px 80px;
    max-width: 1200px;
    margin: 0 auto;
    gap: 60px;
}

.hero-content {
    flex: 1;
}

.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background: var(--gray-100);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    color: var(--dark);
    margin-bottom: 24px;
}

.hero h1 .gradient {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 18px;
    color: var(--gray-600);
    max-width: 520px;
    margin-bottom: 32px;
}

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

.hero-visual {
    flex: 1;
    position: relative;
    height: 400px;
}

.floating-card {
    position: absolute;
    background: var(--white);
    border-radius: 16px;
    padding: 20px 24px;
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    animation: float 6s ease-in-out infinite;
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 45%;
    right: 5%;
    animation-delay: -2s;
}

.card-3 {
    bottom: 20%;
    left: 20%;
    animation-delay: -4s;
}

.card-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    border-radius: 10px;
    font-size: 20px;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* ===== Services ===== */
.services {
    padding: 100px 0;
    background: var(--gray-100);
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.section-header h2 {
    font-size: 40px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 18px;
    color: var(--gray-600);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--white);
    border-radius: 16px;
    padding: 32px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.service-card.featured {
    background: var(--gradient);
    color: var(--white);
}

.service-card.featured .service-icon {
    background: rgba(255, 255, 255, 0.2);
}

.service-card.featured h3,
.service-card.featured p {
    color: var(--white);
}

.service-icon {
    width: 56px;
    height: 56px;
    background: var(--gray-100);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-icon svg {
    width: 28px;
    height: 28px;
    color: var(--primary);
}

.service-card.featured .service-icon svg {
    color: var(--white);
}

.service-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ===== Expertise ===== */
.expertise {
    padding: 100px 0;
}

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

.expertise-content h2 {
    font-size: 40px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 24px;
}

.expertise-content > p {
    font-size: 18px;
    color: var(--gray-600);
    margin-bottom: 40px;
}

.expertise-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.expertise-list li {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.expertise-list .check {
    width: 24px;
    height: 24px;
    background: var(--accent);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    flex-shrink: 0;
}

.expertise-list strong {
    display: block;
    font-size: 16px;
    color: var(--dark);
    margin-bottom: 4px;
}

.expertise-list span {
    font-size: 14px;
    color: var(--gray-600);
}

.expertise-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.stat-card {
    background: var(--white);
    border-radius: 16px;
    padding: 32px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.stat-card:first-child {
    background: var(--gradient);
    color: var(--white);
    grid-column: span 2;
}

.stat-number {
    display: block;
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
}

.stat-card:first-child .stat-label {
    color: rgba(255, 255, 255, 0.9);
}

/* ===== CTA ===== */
.cta {
    padding: 100px 0;
}

.cta-box {
    background: var(--gradient);
    border-radius: 24px;
    padding: 80px;
    text-align: center;
    color: var(--white);
}

.cta-box h2 {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-box p {
    font-size: 18px;
    opacity: 0.9;
    max-width: 500px;
    margin: 0 auto 32px;
}

/* ===== Contact ===== */
.contact {
    padding: 100px 0;
    background: var(--gray-100);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-info h2 {
    font-size: 40px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 24px;
}

.contact-info > p {
    font-size: 18px;
    color: var(--gray-600);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    color: var(--gray-800);
    transition: color 0.2s;
}

.contact-item:hover {
    color: var(--primary);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: var(--shadow);
}

.contact-form {
    background: var(--white);
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s;
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===== Footer ===== */
.footer {
    background: var(--dark);
    color: var(--gray-400);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .footer-logo {
    font-size: 24px;
    font-weight: 800;
    color: var(--white);
    margin-right: 8px;
}

.footer-brand .footer-badge {
    font-size: 10px;
    font-weight: 700;
    padding: 2px 8px;
    background: var(--accent);
    color: var(--white);
    border-radius: 4px;
}

.footer-brand p {
    margin-top: 16px;
    max-width: 300px;
    font-size: 14px;
    line-height: 1.7;
}

.footer-links h4 {
    color: var(--white);
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 14px;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--white);
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid var(--gray-800);
    text-align: center;
    font-size: 14px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 42px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .expertise-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .cta-box {
        padding: 60px 40px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero {
        flex-direction: column;
        padding-top: 100px;
        text-align: center;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .hero p {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .hero-visual {
        display: none;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header h2,
    .expertise-content h2,
    .contact-info h2,
    .cta-box h2 {
        font-size: 28px;
    }
    
    .expertise-stats {
        grid-template-columns: 1fr;
    }
    
    .stat-card:first-child {
        grid-column: span 1;
    }
    
    .cta-box {
        padding: 40px 24px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        padding: 24px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 480px) {
    .btn-lg {
        padding: 14px 24px;
        font-size: 14px;
    }
    
    .hero h1 {
        font-size: 28px;
    }
}