/* Landing Page Styles */

.landing-header {
    background: #ffffff;
    padding: var(--spacing-lg) 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.logo h1 {
    font-size: 1.85rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #000000 0%, #333333 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    position: relative;
    z-index: 1002;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: #000;
    transition: all 0.3s ease;
    display: block;
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Hero Section */
.hero {
    padding: 5rem 0 6rem;
    text-align: center;
    background: #ffffff;
    position: relative;
    overflow: hidden;
}


.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    letter-spacing: -1.5px;
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 50%, #000000 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.35rem;
    color: #666;
    margin-bottom: var(--spacing-xl);
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
    font-weight: 400;
}

.hero-cta {
    margin-top: var(--spacing-xl);
}

/* Features Section */
.features {
    padding: 5rem 0;
    background: #ffffff;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    letter-spacing: -1px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.feature-card {
    padding: var(--spacing-lg);
    background: #fafafa;
    border: 1px solid #f0f0f0;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    border-color: #e0e0e0;
    background: #ffffff;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: inline-block;
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.feature-card h4 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.5px;
}

.feature-card p {
    color: #666;
    line-height: 1.7;
    font-size: 0.95rem;
}

/* Pricing Section */
.pricing {
    padding: 5rem 0;
    background: linear-gradient(180deg, #ffffff 0%, #fafafa 100%);
    position: relative;
}

.pricing::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,0,0,0.1), transparent);
}

.pricing-subtitle {
    text-align: center;
    color: #666;
    font-size: 1.2rem;
    margin-top: var(--spacing-sm);
    font-weight: 400;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-xl);
    margin-top: 3rem;
}

.pricing-card {
    background: white;
    border: 2px solid #f0f0f0;
    border-radius: 16px;
    padding: 2rem;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02);
}

.pricing-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.12);
    border-color: #e0e0e0;
}

.pricing-card-featured {
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    border-color: #000000;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
    color: white;
}

.pricing-card-featured:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 32px 64px rgba(0, 0, 0, 0.25);
}

.pricing-card-featured .pricing-header h4,
.pricing-card-featured .price-amount,
.pricing-card-featured .price-period,
.pricing-card-featured .price-per-credit,
.pricing-card-featured .pricing-features li {
    color: white;
}

.pricing-card-featured .pricing-header {
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #ffffff 0%, #f5f5f5 100%);
    color: #000;
    padding: 6px 16px;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 20px;
    border: 2px solid #000;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid #f0f0f0;
}

.pricing-header h4 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.5px;
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 6px;
    margin: var(--spacing-md) 0;
}

.price-amount {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.price-period {
    color: #666;
    font-size: 1rem;
    font-weight: 500;
}

.pricing-card-featured .price-period {
    color: rgba(255, 255, 255, 0.8);
}

.price-per-credit {
    font-size: 0.9rem;
    color: #666;
    margin-top: 6px;
    font-weight: 500;
}

.pricing-card-featured .price-per-credit {
    color: rgba(255, 255, 255, 0.8);
}

.pricing-features {
    list-style: none;
    padding: 0;
}

.pricing-features li {
    padding: 0.65rem 0;
    color: #666;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-features li:before {
    content: "✓";
    color: #000;
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.pricing-card-featured .pricing-features li:before {
    color: #fff;
}

.pricing-cta {
    text-align: center;
    margin-top: 3rem;
}

/* How It Works Section */
.how-it-works {
    padding: 5rem 0;
    background: #ffffff;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    font-weight: 800;
    margin: 0 auto var(--spacing-md);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
}

.step:hover .step-number {
    transform: scale(1.1);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
}

.step h4 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.5px;
}

.step p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Footer */
footer {
    padding: 3rem 0;
    text-align: center;
    background: #fafafa;
    border-top: 1px solid #f0f0f0;
}

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

.footer-content p {
    color: #666;
    font-weight: 500;
}

.footer-social {
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.telegram-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #888;
    transition: all 0.3s ease;
    padding: 0.75rem;
    border-radius: 50%;
    text-decoration: none;
    border: none;
    outline: none;
}

.telegram-link:hover {
    color: #0088cc;
    transform: translateY(-2px);
    background: rgba(0, 136, 204, 0.1);
}

.telegram-link:focus {
    outline: none;
    box-shadow: none;
}

.telegram-link svg {
    width: 40px;
    height: 40px;
    display: block;
}

.footer-disclaimer {
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    color: #999;
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
        position: relative;
        z-index: 1002;
    }
    
    /* Full page white overlay */
    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: #FFFFFF;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding: 40px;
        z-index: 1001;
        gap: var(--spacing-xl);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
    }
    
    .nav-links.active {
        opacity: 1;
        visibility: visible;
    }
    
    /* Black text buttons */
    .nav-links .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
        padding: 20px 40px;
        font-size: 1.25rem;
        font-weight: 600;
        display: block;
        box-sizing: border-box;
        color: #000000;
        background: transparent;
        border: none;
        text-decoration: none;
        cursor: pointer;
        transition: all 0.2s ease;
    }
    
    .nav-links .btn:hover {
        transform: scale(1.05);
        opacity: 0.7;
    }
    
    .nav-links .btn-primary {
        color: #FFFFFF;
        background: #000000;
        border: 2px solid #000000;
        border-radius: 8px;
    }
    
    .nav-links .btn-secondary {
        color: #000000;
        background: transparent;
        border: 2px solid #000000;
        border-radius: 8px;
        text-decoration: none;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}