:root {
    --primary-color: #000000;
    --secondary-color: #1a1a1a;
    --text-color: #ffffff;
    --text-muted: #888888;
    --background: #000000;
    --card-background: #111111;
    --border-color: #333333;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background);
    color: var(--text-color);
    line-height: 1.6;
}

/* Header Styles */
.main-header {
    background-color: var(--background);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.95rem;
    letter-spacing: 0.3px;
}

.nav-links a:hover {
    opacity: 0.7;
}

.login-btn {
    background-color: var(--text-color);
    color: var(--background) !important;
    padding: 0.5rem 1.5rem;
    border-radius: 3px;
    font-weight: 600 !important;
}

.login-btn:hover {
    opacity: 0.9 !important;
}

/* Hero Section */
.hero {
    padding: 8rem 2rem 4rem;
    background-color: var(--background);
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    line-height: 1.2;
    letter-spacing: -1px;
    font-weight: 700;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    background-color: var(--text-color);
    color: var(--background);
    padding: 1rem 2.5rem;
    border-radius: 3px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    font-size: 1.1rem;
}

.cta-button:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

/* Features Section */
.features {
    padding: 4rem 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 5px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 1rem;
}

/* Footer */
footer {
    background-color: var(--card-background);
    padding: 4rem 2rem 2rem;
    margin-top: 4rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.footer-section h4 {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
}

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

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
}

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

.social-links {
    display: flex;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.footer-bottom {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-color);
    margin: 5px 0;
    transition: var(--transition);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--background);
        padding: 1.5rem;
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu {
        display: block;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

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

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.section-header p {
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    background: var(--card-background);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: 3px;
    font-family: 'Inter', sans-serif;
}

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