/* =============================================================================
   MCP Consulting LP - Custom Styles
   - ダーク系モダンUI
   - パフォーマンス最適化
   - レスポンシブ対応
   ============================================================================= */

/* Root Variables */
:root {
    --color-primary: #6366f1;
    --color-primary-dark: #4f46e5;
    --color-bg-dark: #111827;
    --color-bg-darker: #0f172a;
    --color-text-light: #f3f4f6;
    --color-text-muted: #9ca3af;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.text-gradient {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Buttons */
.cta-button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    text-decoration: none;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.cta-button-large {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    text-decoration: none;
    border-radius: 0.75rem;
    font-weight: 700;
    font-size: 1.125rem;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.cta-button-large:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.4);
}

/* Section Styles */
.section-padding {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Benefit Cards */
.benefit-card {
    padding: 2rem;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border-radius: 1rem;
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* Service Cards */
.service-card {
    padding: 2.5rem;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border-radius: 1rem;
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    position: relative;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.3);
}

.service-card-featured {
    border: 2px solid #6366f1;
    box-shadow: 0 5px 20px rgba(99, 102, 241, 0.2);
}

.featured-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
}

/* Case Study Cards */
.case-card {
    padding: 2rem;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border-radius: 1rem;
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(99, 102, 241, 0.2);
    color: #a5b4fc;
    border-radius: 0.25rem;
    font-size: 0.875rem;
}

/* Pricing Cards */
.pricing-card {
    padding: 2.5rem;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border-radius: 1rem;
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.3);
}

.pricing-card-featured {
    border: 2px solid #6366f1;
    box-shadow: 0 5px 20px rgba(99, 102, 241, 0.2);
}

.pricing-button {
    display: block;
    width: 100%;
    padding: 0.875rem;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    text-align: center;
    text-decoration: none;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.pricing-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

/* Contact Buttons */
.contact-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    text-decoration: none;
    border-radius: 0.75rem;
    font-weight: 700;
    font-size: 1.125rem;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.contact-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.4);
}

.contact-button-secondary {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: transparent;
    color: #6366f1;
    border: 2px solid #6366f1;
    text-decoration: none;
    border-radius: 0.75rem;
    font-weight: 700;
    font-size: 1.125rem;
    transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.contact-button-secondary:hover {
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }

    .section-padding {
        padding: 3rem 0;
    }

    h1 {
        font-size: 2.5rem !important;
    }

    .benefit-card,
    .service-card,
    .case-card,
    .pricing-card {
        padding: 1.5rem;
    }
}

/* Performance Optimizations */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Focus Styles for Accessibility */
a:focus,
button:focus {
    outline: 2px solid #6366f1;
    outline-offset: 2px;
}