/**
 * SafeTradeBot Landing Page Styles
 * Kraken-Style Dark Theme with Blue Accents
 */

:root {
    --stb-bg-primary: #0b1020;
    --stb-bg-secondary: #131827;
    --stb-bg-tertiary: #1a1f2e;
    --stb-border-primary: #262d40;
    --stb-text-primary: #ffffff;
    --stb-text-secondary: #9fa8c6;
    --stb-accent-blue: #3861fb;
    --stb-accent-blue-hover: #5a7dff;
    --stb-accent-pink: #ff6b9d;
    --stb-spacing-xs: 8px;
    --stb-spacing-sm: 16px;
    --stb-spacing-md: 24px;
    --stb-spacing-lg: 32px;
    --stb-spacing-xl: 48px;
    --stb-spacing-2xl: 64px;
}

/* Hero Section */
.stb-hero-section {
    background: var(--stb-bg-primary);
    padding: var(--stb-spacing-2xl) var(--stb-spacing-md);
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.stb-hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(56, 97, 251, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.stb-hero-container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 1;
}

.stb-hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.stb-hero-label {
    color: var(--stb-accent-pink);
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0 0 var(--stb-spacing-sm);
}

.stb-hero-headline {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 var(--stb-spacing-md);
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--stb-spacing-xs);
}

.stb-hero-accent-blue {
    color: var(--stb-accent-blue);
}

.stb-hero-text-white {
    color: var(--stb-text-primary);
}

.stb-hero-tagline {
    font-size: 18px;
    color: var(--stb-text-secondary);
    line-height: 1.6;
    margin: 0 0 var(--stb-spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.stb-hero-cta {
    display: flex;
    gap: var(--stb-spacing-sm);
    justify-content: center;
    margin-bottom: var(--stb-spacing-xl);
    flex-wrap: wrap;
}

.stb-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.stb-btn-large {
    padding: 16px 32px;
    font-size: 18px;
}

.stb-btn-primary {
    background: var(--stb-accent-blue);
    color: var(--stb-text-primary);
}

.stb-btn-primary:hover {
    background: var(--stb-accent-blue-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(56, 97, 251, 0.3);
}

.stb-btn-secondary {
    background: transparent;
    color: var(--stb-text-primary);
    border: 2px solid var(--stb-accent-blue);
}

.stb-btn-secondary:hover {
    background: rgba(56, 97, 251, 0.1);
    border-color: var(--stb-accent-blue-hover);
}

.stb-btn-block {
    width: 100%;
}

.stb-hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--stb-spacing-md);
    margin-top: var(--stb-spacing-xl);
    padding-top: var(--stb-spacing-xl);
    border-top: 1px solid var(--stb-border-primary);
}

.stb-stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--stb-spacing-xs);
}

.stb-stat-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--stb-text-primary);
}

.stb-stat-label {
    font-size: 14px;
    color: var(--stb-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Features Section */
.stb-features-section {
    background: var(--stb-bg-secondary);
    padding: var(--stb-spacing-2xl) var(--stb-spacing-md);
}

.stb-features-container {
    max-width: 1200px;
    margin: 0 auto;
}

.stb-section-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--stb-accent-blue);
    text-align: center;
    margin: 0 0 var(--stb-spacing-lg);
    position: relative;
    padding-bottom: var(--stb-spacing-md);
}

.stb-section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--stb-accent-blue);
    border-radius: 2px;
}

.stb-section-subtitle {
    font-size: 18px;
    color: var(--stb-text-secondary);
    text-align: center;
    margin: 0 0 var(--stb-spacing-xl);
}

.stb-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--stb-spacing-md);
    margin-top: var(--stb-spacing-xl);
}

.stb-feature-card {
    background: var(--stb-bg-tertiary);
    border: 1px solid var(--stb-border-primary);
    border-radius: 12px;
    padding: var(--stb-spacing-lg);
    transition: all 0.3s ease;
}

.stb-feature-card:hover {
    border-color: var(--stb-accent-blue);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.stb-feature-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--stb-spacing-md);
    color: var(--stb-accent-blue);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stb-feature-icon svg {
    width: 100%;
    height: 100%;
}

.stb-feature-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--stb-text-primary);
    margin: 0 0 var(--stb-spacing-sm);
}

.stb-feature-description {
    font-size: 14px;
    color: var(--stb-text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Pricing Preview Section */
.stb-pricing-preview-section {
    background: var(--stb-bg-primary);
    padding: var(--stb-spacing-2xl) var(--stb-spacing-md);
}

.stb-pricing-preview-container {
    max-width: 1200px;
    margin: 0 auto;
}

.stb-pricing-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--stb-spacing-md);
    margin-top: var(--stb-spacing-xl);
}

.stb-pricing-card {
    background: var(--stb-bg-tertiary);
    border: 2px solid var(--stb-border-primary);
    border-radius: 12px;
    padding: var(--stb-spacing-lg);
    position: relative;
    transition: all 0.3s ease;
}

.stb-pricing-card:hover {
    border-color: var(--stb-accent-blue);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.stb-pricing-card-featured {
    border-color: var(--stb-accent-blue);
    background: linear-gradient(135deg, rgba(56, 97, 251, 0.1) 0%, rgba(56, 97, 251, 0.05) 100%);
}

.stb-pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--stb-accent-blue);
    color: var(--stb-text-primary);
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stb-pricing-name {
    font-size: 24px;
    font-weight: 600;
    color: var(--stb-text-primary);
    margin: var(--stb-spacing-md) 0 var(--stb-spacing-sm);
    text-align: center;
}

.stb-pricing-price {
    text-align: center;
    margin-bottom: var(--stb-spacing-lg);
}

.stb-price-amount {
    font-size: 48px;
    font-weight: 700;
    color: var(--stb-accent-blue);
    line-height: 1;
}

.stb-price-period {
    font-size: 16px;
    color: var(--stb-text-secondary);
    margin-left: var(--stb-spacing-xs);
}

.stb-pricing-features {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--stb-spacing-lg);
}

.stb-pricing-features li {
    padding: var(--stb-spacing-xs) 0;
    font-size: 14px;
    color: var(--stb-text-secondary);
    border-bottom: 1px solid var(--stb-border-primary);
}

.stb-pricing-features li:last-child {
    border-bottom: none;
}

/* Responsive */
@media (max-width: 768px) {
    .stb-hero-headline {
        font-size: 36px;
    }

    .stb-hero-tagline {
        font-size: 16px;
    }

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

    .stb-btn-large {
        width: 100%;
    }

    .stb-section-title {
        font-size: 32px;
    }

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

    .stb-pricing-preview-grid {
        grid-template-columns: 1fr;
    }
}