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

:root {
    --primary: #1a73e8;
    --primary-dark: #1557b0;
    --dark: #1a1a2e;
    --light: #f8f9fa;
    --gray: #6c757d;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
    color: var(--dark);
    line-height: 1.6;
}

/* Navigation */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.5px;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.hero h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 1rem;
}

.tagline {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    opacity: 1;
    margin-bottom: 2.5rem;
    font-weight: 400;
    color: white;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: white;
    color: var(--primary);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* Sections */
section {
    padding: 6rem 5%;
}

section h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1.5rem;
    color: var(--dark);
}

section > p {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 3rem;
    color: var(--gray);
    font-size: 1.1rem;
}

/* Partners */
.partners {
    background: white;
    text-align: center;
}

.partners-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4rem;
    flex-wrap: wrap;
    max-width: 900px;
    margin: 0 auto;
}

.partner-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.partner-item img,
.partner-item svg {
    height: 50px;
    width: auto;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: filter 0.3s, opacity 0.3s;
}

.partner-item:hover img,
.partner-item:hover svg {
    filter: grayscale(0%);
    opacity: 1;
}

.partner-item span {
    font-weight: 600;
    color: var(--gray);
    font-size: 0.95rem;
}

/* About */
.about {
    background: var(--light);
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
    color: var(--primary);
}

.service-card p {
    color: var(--gray);
}

/* Contact */
.contact {
    background: var(--light);
    text-align: center;
}

.contact .cta-button {
    background: var(--primary);
    color: white;
}

.contact .cta-button:hover {
    background: var(--primary-dark);
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    background: var(--dark);
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
    }

    section {
        padding: 4rem 5%;
    }
}

@media (max-width: 480px) {
    .nav-links {
        display: none;
    }
}