/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --background: #191919;
    --foreground: #F0EFED;
    --card: #202020;
    --border: #2A2A2A;
    --muted: #9B9B9B;
    --hover: #262626;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--background);
    color: var(--foreground);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out forwards;
    opacity: 0;
}

.slide-in {
    animation: slideIn 0.6s ease-out forwards;
    opacity: 0;
}

.scale-in {
    animation: scaleIn 0.6s ease-out forwards;
    opacity: 0;
}

.delay-1 {
    animation-delay: 0.15s;
}

.delay-2 {
    animation-delay: 0.3s;
}

.delay-3 {
    animation-delay: 0.45s;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(25, 25, 25, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--foreground);
}

.nav-buttons {
    display: flex;
    gap: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 0.5rem;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    font-family: 'Inter', sans-serif;
}

.btn:active {
    transform: scale(0.95);
}

.btn-primary {
    background-color: var(--foreground);
    color: #0a0a0a;
}

.btn-primary:hover {
    background-color: #e0dfdd;
}

.btn-ghost {
    background-color: transparent;
    color: var(--foreground);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    background-color: var(--hover);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* Hero Section */
.hero {
    padding: 8rem 0 6rem;
    text-align: center;
    margin-top: 72px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--foreground);
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--muted);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
}

.hero-cta {
    margin-top: 2rem;
}

/* Features Section */
.features {
    padding: 6rem 0;
    background-color: var(--card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.feature-card {
    padding: 2rem;
    background-color: var(--background);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    transition: all 0.2s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: #3A3A3A;
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--hover);
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    color: var(--foreground);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--foreground);
    margin-bottom: 0.75rem;
}

.feature-description {
    color: var(--muted);
    line-height: 1.6;
}

/* How It Works Section */
.how-it-works {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--foreground);
    text-align: center;
    margin-bottom: 4rem;
    letter-spacing: -0.02em;
}

.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.step {
    text-align: center;
}

.step-number {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--foreground);
    color: #0a0a0a;
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: 800;
    margin: 0 auto 1.5rem;
    padding-top: 0.2rem;
}

.step-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--foreground);
    margin-bottom: 0.75rem;
}

.step-description {
    color: var(--muted);
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    padding: 6rem 0;
    background-color: var(--card);
    border-top: 1px solid var(--border);
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--foreground);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.cta-subtitle {
    font-size: 1.125rem;
    color: var(--muted);
    margin-bottom: 2rem;
}

/* Footer */
.footer {
    padding: 3rem 0;
    border-top: 1px solid var(--border);
}

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

.footer-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--foreground);
}

.footer-text {
    color: var(--muted);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .section-title,
    .cta-title {
        font-size: 2rem;
    }

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

    .steps {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .nav-buttons {
        gap: 0.5rem;
    }

    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.8125rem;
    }

    .container {
        padding: 0 1.5rem;
    }

    .hero {
        padding: 6rem 0 4rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .nav-content {
        height: 64px;
    }

    .logo {
        font-size: 1.25rem;
    }
}