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

:root {
    --primary-color: #ff9000;
    --secondary-color: #000000;
    --text-color: #333333;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --gray: #6c757d;
    --dark-gray: #343a40;
    --border-color: #dee2e6;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.header {
    background-color: var(--secondary-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

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

.logo a {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: -1px;
}

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

.nav-menu a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    font-size: 0.95rem;
}

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

.hero {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #1a1a1a 100%);
    color: var(--white);
    padding: 8rem 0 6rem;
    text-align: center;
}

.hero h1 {
    font-size: 5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    letter-spacing: -2px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-description {
    font-size: 1.15rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: #e8e8e8;
    font-weight: 400;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2.5rem;
    color: #e0e0e0;
    font-weight: 300;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 1.1rem;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: #e68200;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(255, 144, 0, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-secondary:hover {
    background-color: var(--white);
    color: var(--secondary-color);
    transform: translateY(-2px);
}

.btn-premium {
    background: linear-gradient(135deg, #ffd700 0%, var(--primary-color) 100%);
    color: var(--secondary-color);
    margin-top: 1.5rem;
    font-size: 1.2rem;
}

.btn-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 25px rgba(255, 215, 0, 0.5);
}

.section {
    padding: 5rem 0;
}

.section-alt {
    background-color: var(--light-bg);
}

.section h2 {
    font-size: 3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--secondary-color);
    position: relative;
    padding-bottom: 1rem;
}

.section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), #ffd700);
    border-radius: 2px;
}

.content-card {
    background-color: var(--white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    margin-bottom: 2rem;
}

.content-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
    font-weight: 600;
}

.content-card p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-color);
    text-align: justify;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    display: block;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
    font-weight: 600;
}

.feature-card p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-color);
    text-align: justify;
}

.premium-card {
    background: linear-gradient(135deg, #fff9e6 0%, #ffffff 100%);
    border: 3px solid var(--primary-color);
    text-align: center;
}

.premium-card h3 {
    color: var(--primary-color);
    font-size: 2.2rem;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.contact-item {
    background-color: var(--light-bg);
    padding: 1.5rem;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
}

.contact-item strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
    font-size: 1.1rem;
}

.footer {
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.7rem;
}

.footer-section a {
    color: #b0b0b0;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.95rem;
}

.footer-section a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #333;
    color: #888;
}

@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 1rem;
        display: none;
    }

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

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .section h2 {
        font-size: 2rem;
    }

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

    .content-card {
        padding: 2rem;
    }

    .hero {
        padding: 4rem 0 3rem;
    }

    .section {
        padding: 3rem 0;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .content-card {
        padding: 1.5rem;
    }

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

html {
    scroll-behavior: smooth;
}

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

::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--light-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: #e68200;
}