:root {
    --primary: #3BB77E;
    --primary-light: #EBF8F2;
    --primary-dark: #2d8a5f;
    --black: #010f1c;
    --grey: #646464;
    --light-grey: #f5f7f9;
    --white: #ffffff;
    --shadow: rgba(59, 183, 126, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
}

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

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

h1,
h2,
h3,
h4 {
    color: var(--black);
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

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

/* Navbar */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 20px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--black);
}

.logo img {
    height: 32px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-weight: 500;
    color: var(--grey);
}

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

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    height: auto;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px var(--shadow);
}

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

.btn-outline:hover {
    background: var(--primary-light);
}

/* Sections */
section {
    padding: 100px 20px;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
}

/* Hero Section */
.hero {
    padding: 180px 20px 100px;
    background: linear-gradient(135deg, #f8fcfb 0%, #e8f5ef 100%);
    position: relative;
    overflow: hidden;
}

.hero-btns {
    display: flex;
    gap: 20px;
    align-items: stretch;
}

.hero-btns .btn-primary {
    padding: 8px 12px;
}

.hero-btns img {
    height: 48px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 24px;
    background: linear-gradient(to right, var(--black), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--grey);
    margin-bottom: 40px;
}

.hero-image img {
    border-radius: 30px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.1);
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
}

/* Footer */
.footer {
    background: var(--black);
    color: var(--white);
    padding: 80px 20px 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-about p {
    color: rgba(255, 255, 255, 0.6);
    margin-top: 20px;
}

.footer-links h4 {
    color: var(--white);
    margin-bottom: 24px;
}

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

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.6);
}

.footer-links ul li a:hover {
    color: var(--primary);
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 968px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 3rem;
    }

    .hero-btns {
        justify-content: center;
    }

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

@media (max-width: 576px) {
    .nav-links {
        display: none;
    }

    .logo {
        font-size: 1.2rem;
    }

    .logo img {
        height: 24px;
    }

    .nav .btn {
        padding: 10px 18px;
        font-size: 0.85rem;
        border-radius: 10px;
    }

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