/* ========================================
   Professional About Page Design
   Based on Swiss Modernism 2.0 + Corporate Trust
   ======================================== */

/* ========================================
   System Fonts - Fast Loading, Professional
   ======================================== */
/* 使用系统字体，提升加载速度 */

/* ========================================
   Design System - Professional Colors
   ======================================== */
:root {
    /* Primary Palette - Trust Blue */
    --about-primary: #2563EB;
    --about-primary-hover: #1D4ED8;
    --about-primary-light: #3B82F6;
    --about-primary-lighter: #DBEAFE;

    /* CTA Palette - Orange Accent */
    --about-cta: #F97316;
    --about-cta-hover: #EA580C;

    /* Neutral Palette */
    --about-bg: #F8FAFC;
    --about-surface: #FFFFFF;
    --about-text-primary: #1E293B;
    --about-text-secondary: #475569;
    --about-text-muted: #64748B;
    --about-border: #E2E8F0;
    --about-border-light: #F1F5F9;

    /* Shadows - Layered Depth */
    --about-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --about-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --about-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --about-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Spacing - 8px Grid System */
    --about-spacing-xs: 8px;
    --about-spacing-sm: 16px;
    --about-spacing-md: 24px;
    --about-spacing-lg: 32px;
    --about-spacing-xl: 48px;
    --about-spacing-2xl: 64px;
    --about-spacing-3xl: 96px;

    /* Border Radius */
    --about-radius-sm: 6px;
    --about-radius-md: 8px;
    --about-radius-lg: 12px;
    --about-radius-xl: 16px;

    /* Typography */
    --about-font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --about-font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ========================================
   Hero Section - Professional Entry Point
   ======================================== */
.about-hero {
    text-align: center;
    padding: var(--about-spacing-3xl) 0 var(--about-spacing-2xl);
    margin-bottom: var(--about-spacing-xl);
    background: linear-gradient(180deg, var(--about-bg) 0%, var(--about-surface) 100%);
}

.about-hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--about-spacing-md);
}

.about-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--about-spacing-xs);
    background: var(--about-primary-lighter);
    color: var(--about-primary);
    padding: 8px 20px;
    border-radius: 24px;
    font-family: var(--about-font-body);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: var(--about-spacing-lg);
    letter-spacing: 0.02em;
    border: 1px solid var(--about-primary-light);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-badge:hover {
    background: var(--about-primary-light);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--about-shadow-md);
}

.about-hero-title {
    font-family: var(--about-font-heading);
    font-size: 42px;
    font-weight: 700;
    color: var(--about-text-primary);
    margin-bottom: var(--about-spacing-lg);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.about-hero-description {
    font-family: var(--about-font-body);
    font-size: 18px;
    color: var(--about-text-secondary);
    line-height: 1.8;
    max-width: 680px;
    margin: 0 auto;
    font-weight: 400;
}

.about-hero-links {
    display: flex;
    justify-content: center;
    gap: var(--about-spacing-md);
    margin-top: var(--about-spacing-lg);
}

.hero-link {
    display: inline-flex;
    align-items: center;
    gap: var(--about-spacing-xs);
    padding: 10px 24px;
    background: white;
    color: var(--about-primary);
    border: 2px solid var(--about-border);
    border-radius: var(--about-radius-md);
    font-family: var(--about-font-body);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--about-shadow-sm);
}

.hero-link:hover {
    background: var(--about-primary);
    color: white;
    border-color: var(--about-primary);
    transform: translateY(-2px);
    box-shadow: var(--about-shadow-md);
}

.hero-link-icon {
    width: 18px;
    height: 18px;
}

/* ========================================
   Section Structure
   ======================================== */
.about-section {
    margin-bottom: var(--about-spacing-3xl);
    padding: 0 var(--about-spacing-md);
}

.about-section-title {
    font-family: var(--about-font-heading);
    font-size: 32px;
    font-weight: 700;
    color: var(--about-text-primary);
    margin-bottom: var(--about-spacing-xl);
    text-align: center;
    letter-spacing: -0.01em;
    position: relative;
    padding-bottom: var(--about-spacing-md);
}

.about-section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 64px;
    height: 4px;
    background: linear-gradient(90deg, var(--about-primary), var(--about-primary-light));
    border-radius: 2px;
}

/* ========================================
   Featured Project Showcase
   ======================================== */
.project-showcase {
    max-width: 900px;
    margin: 0 auto;
}

.project-card {
    background: white;
    border: 1px solid var(--about-border);
    border-radius: var(--about-radius-xl);
    padding: var(--about-spacing-xl);
    box-shadow: var(--about-shadow-lg);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--about-shadow-xl);
    border-color: var(--about-primary-light);
}

.project-header {
    display: flex;
    align-items: center;
    gap: var(--about-spacing-lg);
    margin-bottom: var(--about-spacing-lg);
    padding-bottom: var(--about-spacing-lg);
    border-bottom: 2px solid var(--about-border-light);
}

.project-icon {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--about-primary-lighter) 0%, #EFF6FF 100%);
    border-radius: var(--about-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--about-primary-light);
}

.project-icon svg {
    width: 32px;
    height: 32px;
    color: var(--about-primary);
}

.project-title-group {
    flex: 1;
}

.project-title {
    font-family: var(--about-font-heading);
    font-size: 24px;
    font-weight: 700;
    color: var(--about-text-primary);
    margin-bottom: 4px;
    letter-spacing: -0.01em;
}

.project-subtitle {
    font-family: var(--about-font-body);
    font-size: 14px;
    color: var(--about-text-muted);
    margin: 0;
}

.project-description {
    font-family: var(--about-font-body);
    font-size: 15px;
    color: var(--about-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--about-spacing-lg);
}

.project-url-display {
    display: flex;
    align-items: center;
    gap: var(--about-spacing-sm);
    padding: var(--about-spacing-md);
    background: linear-gradient(135deg, var(--about-bg) 0%, #F0F9FF 100%);
    border: 1px solid var(--about-primary-lighter);
    border-left: 3px solid var(--about-primary);
    border-radius: var(--about-radius-md);
    margin-bottom: var(--about-spacing-lg);
    transition: all 0.3s ease;
}

.project-url-display:hover {
    background: linear-gradient(135deg, #F0F9FF 0%, #DBEAFE 100%);
    border-color: var(--about-primary-light);
    box-shadow: var(--about-shadow-sm);
}

.url-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--about-primary);
}

.project-url-link {
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 14px;
    font-weight: 500;
    color: var(--about-primary);
    text-decoration: none;
    transition: all 0.2s ease;
    word-break: break-all;
}

.project-url-link:hover {
    color: var(--about-primary-hover);
    text-decoration: underline;
}

.project-platforms {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--about-spacing-md);
    margin-bottom: var(--about-spacing-lg);
}

.platform-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--about-spacing-xs);
    padding: var(--about-spacing-md);
    background: var(--about-bg);
    border: 1px solid var(--about-border);
    border-radius: var(--about-radius-md);
    transition: all 0.3s ease;
}

.platform-item:hover {
    background: var(--about-primary-lighter);
    border-color: var(--about-primary-light);
    transform: translateY(-2px);
}

.platform-icon {
    width: 28px;
    height: 28px;
    color: var(--about-primary);
}

.platform-item span {
    font-family: var(--about-font-body);
    font-size: 13px;
    font-weight: 600;
    color: var(--about-text-primary);
    text-align: center;
}

.project-actions {
    display: flex;
    justify-content: center;
    gap: var(--about-spacing-md);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: var(--about-spacing-xs);
    padding: 12px 28px;
    background: var(--about-primary);
    color: white;
    border: 2px solid var(--about-primary);
    border-radius: var(--about-radius-md);
    font-family: var(--about-font-body);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--about-shadow-md);
}

.project-link:hover {
    background: var(--about-primary-hover);
    border-color: var(--about-primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--about-shadow-lg);
}

.link-icon {
    width: 18px;
    height: 18px;
}

/* ========================================
   Highlight Card - Core Product Showcase
   ======================================== */
.about-highlight-card {
    display: flex;
    align-items: center;
    gap: var(--about-spacing-lg);
    background: linear-gradient(135deg, var(--about-primary) 0%, var(--about-primary-light) 100%);
    color: white;
    padding: var(--about-spacing-xl);
    border-radius: var(--about-radius-xl);
    box-shadow: var(--about-shadow-xl);
    margin-bottom: var(--about-spacing-2xl);
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-highlight-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.about-highlight-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 24px 38px -10px rgba(37, 99, 235, 0.3), 0 16px 20px -8px rgba(37, 99, 235, 0.2);
}

.about-highlight-card:hover::before {
    opacity: 1;
}

.highlight-icon {
    flex-shrink: 0;
    width: 72px;
    height: 72px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--about-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.about-highlight-card:hover .highlight-icon {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(1.05) rotate(-5deg);
}

.highlight-icon svg {
    width: 36px;
    height: 36px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.highlight-content {
    flex: 1;
}

.highlight-title {
    font-family: var(--about-font-heading);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: var(--about-spacing-sm);
    letter-spacing: -0.01em;
}

.highlight-description {
    font-family: var(--about-font-body);
    font-size: 16px;
    line-height: 1.7;
    opacity: 0.95;
    font-weight: 400;
}

/* Brand Story - Domain Name Explanation */
.brand-story {
    display: flex;
    align-items: flex-start;
    gap: var(--about-spacing-md);
    margin-top: var(--about-spacing-lg);
    padding: var(--about-spacing-lg);
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--about-radius-lg);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.brand-story::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.8) 0%, rgba(255, 255, 255, 0.4) 100%);
}

.brand-story:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.35);
}

.story-icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    color: white;
    opacity: 0.95;
    margin-top: 2px;
}

.story-content {
    flex: 1;
}

.story-text {
    font-family: var(--about-font-body);
    font-size: 15px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.95);
    margin: 0;
    font-weight: 400;
}

.story-text strong {
    font-weight: 600;
    color: white;
}

.commitment {
    display: inline-block;
    padding: 2px 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    font-weight: 500;
    margin: 0 2px;
}

/* ========================================
   Services Grid - Card-Based Layout
   ======================================== */
.about-services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--about-spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.service-card-modern {
    background: var(--about-surface);
    border: 1px solid var(--about-border);
    border-radius: var(--about-radius-lg);
    padding: var(--about-spacing-lg);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.service-card-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--about-primary), var(--about-primary-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.service-card-modern:hover {
    transform: translateY(-6px);
    box-shadow: var(--about-shadow-xl);
    border-color: var(--about-primary-light);
}

.service-card-modern:hover::before {
    transform: scaleX(1);
}

.service-icon-wrapper {
    width: 56px;
    height: 56px;
    background: var(--about-primary-lighter);
    border-radius: var(--about-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--about-spacing-md);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card-modern:hover .service-icon-wrapper {
    background: var(--about-primary);
    transform: scale(1.1) rotate(-5deg);
    box-shadow: var(--about-shadow-lg);
}

.service-svg-icon {
    width: 28px;
    height: 28px;
    color: var(--about-primary);
    transition: color 0.3s ease;
}

.service-card-modern:hover .service-svg-icon {
    color: white;
}

.service-card-title {
    font-family: var(--about-font-heading);
    font-size: 19px;
    font-weight: 600;
    color: var(--about-text-primary);
    margin-bottom: var(--about-spacing-sm);
    letter-spacing: -0.01em;
}

.service-card-description {
    font-family: var(--about-font-body);
    font-size: 15px;
    color: var(--about-text-secondary);
    line-height: 1.7;
    margin: 0 0 var(--about-spacing-md) 0;
    font-weight: 400;
}

.service-highlight {
    display: inline-flex;
    align-items: center;
    gap: var(--about-spacing-xs);
    padding: 6px 14px;
    background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%);
    border: 1px solid #FCD34D;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.service-highlight:hover {
    background: linear-gradient(135deg, #FDE68A 0%, #FCD34D 100%);
    transform: translateX(4px);
    box-shadow: 0 2px 8px rgba(252, 211, 77, 0.3);
}

.highlight-icon {
    width: 16px;
    height: 16px;
    color: #D97706;
    flex-shrink: 0;
}

.service-highlight span {
    font-family: var(--about-font-body);
    font-size: 13px;
    font-weight: 600;
    color: #92400E;
    line-height: 1;
}

/* ========================================
   Tech Stack - Skills Showcase
   ======================================== */
.tech-stack-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--about-spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.tech-category {
    background: var(--about-surface);
    border: 1px solid var(--about-border);
    border-radius: var(--about-radius-lg);
    padding: var(--about-spacing-lg);
    transition: all 0.3s ease;
}

.tech-category:hover {
    box-shadow: var(--about-shadow-md);
    border-color: var(--about-primary-light);
}

.tech-category-title {
    font-family: var(--about-font-heading);
    font-size: 17px;
    font-weight: 600;
    color: var(--about-text-primary);
    margin-bottom: var(--about-spacing-md);
    padding-bottom: var(--about-spacing-sm);
    border-bottom: 2px solid var(--about-primary);
    letter-spacing: -0.01em;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--about-spacing-xs);
}

.tech-tag {
    display: inline-flex;
    align-items: center;
    padding: 7px 14px;
    background: var(--about-primary-lighter);
    color: var(--about-primary);
    border-radius: 18px;
    font-family: var(--about-font-body);
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
}

.tech-tag:hover {
    background: var(--about-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--about-shadow-sm);
    border-color: var(--about-primary-hover);
}

/* ========================================
   CTA Section - Conversion Focus
   ======================================== */
.about-cta-section {
    margin-top: var(--about-spacing-3xl);
    padding: var(--about-spacing-xl) var(--about-spacing-md);
}

.about-cta-card {
    background: linear-gradient(135deg, var(--about-bg) 0%, var(--about-border-light) 100%);
    border: 1px solid var(--about-border);
    border-radius: var(--about-radius-xl);
    padding: var(--about-spacing-2xl) var(--about-spacing-xl);
    text-align: center;
    box-shadow: var(--about-shadow-md);
    max-width: 800px;
    margin: 0 auto;
}

.about-cta-title {
    font-family: var(--about-font-heading);
    font-size: 26px;
    font-weight: 700;
    color: var(--about-text-primary);
    margin-bottom: var(--about-spacing-md);
    letter-spacing: -0.01em;
}

.about-cta-description {
    font-family: var(--about-font-body);
    font-size: 16px;
    color: var(--about-text-secondary);
    margin-bottom: var(--about-spacing-xl);
    line-height: 1.7;
}

.about-cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--about-spacing-md);
    flex-wrap: wrap;
}

.btn-cta-primary,
.btn-cta-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: var(--about-radius-md);
    font-family: var(--about-font-body);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.btn-cta-primary {
    background: linear-gradient(135deg, var(--about-cta) 0%, var(--about-cta-hover) 100%);
    color: white;
    border-color: var(--about-cta);
    box-shadow: var(--about-shadow-md);
}

.btn-cta-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.btn-cta-primary:hover {
    background: linear-gradient(135deg, var(--about-cta-hover) 0%, #DC2626 100%);
    border-color: var(--about-cta-hover);
    transform: translateY(-2px);
    box-shadow: 0 12px 20px -8px rgba(249, 115, 22, 0.4);
}

.btn-cta-primary:hover::before {
    left: 100%;
}

.btn-cta-secondary {
    background: white;
    color: var(--about-primary);
    border-color: var(--about-primary);
    box-shadow: var(--about-shadow-sm);
}

.btn-cta-secondary:hover {
    background: var(--about-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--about-shadow-md);
}

/* ========================================
   Responsive Design - Mobile First
   ======================================== */

/* Tablet (768px - 992px) */
@media (max-width: 992px) {
    .tech-stack-container {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile (max 768px) */
@media (max-width: 768px) {
    :root {
        --about-spacing-xl: 40px;
        --about-spacing-2xl: 56px;
        --about-spacing-3xl: 72px;
    }

    .about-hero {
        padding: var(--about-spacing-2xl) 0 var(--about-spacing-xl);
    }

    .about-hero-title {
        font-size: 32px;
    }

    .about-hero-description {
        font-size: 16px;
    }

    .about-hero-links {
        flex-direction: column;
        align-items: center;
    }

    .hero-link {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .about-section-title {
        font-size: 26px;
    }

    .project-card {
        padding: var(--about-spacing-lg);
    }

    .project-header {
        flex-direction: column;
        text-align: center;
        gap: var(--about-spacing-md);
    }

    .project-title {
        font-size: 22px;
    }

    .project-url-display {
        padding: var(--about-spacing-sm) var(--about-spacing-md);
    }

    .project-url-link {
        font-size: 13px;
    }

    .project-platforms {
        grid-template-columns: 1fr;
        gap: var(--about-spacing-sm);
    }

    .platform-item {
        flex-direction: row;
        justify-content: flex-start;
        padding: var(--about-spacing-sm) var(--about-spacing-md);
    }

    .project-actions {
        flex-direction: column;
    }

    .project-link {
        width: 100%;
        justify-content: center;
    }

    .about-highlight-card {
        flex-direction: column;
        text-align: center;
        padding: var(--about-spacing-lg);
        gap: var(--about-spacing-md);
    }

    .highlight-icon {
        margin: 0 auto;
    }

    .highlight-title {
        font-size: 21px;
    }

    .highlight-description {
        font-size: 15px;
    }

    .brand-story {
        flex-direction: column;
        padding: var(--about-spacing-md);
        gap: var(--about-spacing-sm);
    }

    .story-icon {
        width: 24px;
        height: 24px;
        margin: 0;
    }

    .story-text {
        font-size: 14px;
        line-height: 1.7;
    }

    .commitment {
        padding: 1px 6px;
        font-size: 13px;
        margin: 0 1px;
    }

    .about-services-grid {
        grid-template-columns: 1fr;
        gap: var(--about-spacing-md);
    }

    .tech-stack-container {
        grid-template-columns: 1fr;
        gap: var(--about-spacing-md);
    }

    .about-cta-card {
        padding: var(--about-spacing-xl) var(--about-spacing-lg);
    }

    .about-cta-title {
        font-size: 22px;
    }

    .about-cta-buttons {
        flex-direction: column;
        gap: var(--about-spacing-sm);
    }

    .btn-cta-primary,
    .btn-cta-secondary {
        width: 100%;
        max-width: 320px;
    }
}

/* Small Mobile (max 480px) */
@media (max-width: 480px) {
    :root {
        --about-spacing-lg: 24px;
        --about-spacing-xl: 32px;
        --about-spacing-2xl: 48px;
        --about-spacing-3xl: 64px;
    }

    .about-hero {
        padding: var(--about-spacing-xl) 0 var(--about-spacing-lg);
    }

    .about-hero-title {
        font-size: 26px;
    }

    .about-hero-description {
        font-size: 15px;
    }

    .about-section-title {
        font-size: 22px;
    }

    .highlight-title {
        font-size: 19px;
    }

    .service-card-title {
        font-size: 17px;
    }

    .service-highlight {
        padding: 5px 12px;
    }

    .highlight-icon {
        width: 14px;
        height: 14px;
    }

    .service-highlight span {
        font-size: 12px;
    }

    .about-cta-title {
        font-size: 20px;
    }

    .project-card {
        padding: var(--about-spacing-md);
    }

    .project-title {
        font-size: 20px;
    }

    .project-description {
        font-size: 14px;
    }

    .project-url-display {
        padding: var(--about-spacing-sm);
    }

    .url-icon {
        width: 18px;
        height: 18px;
    }

    .project-url-link {
        font-size: 12px;
    }

    .platform-item span {
        font-size: 12px;
    }

    .project-link {
        padding: 10px 20px;
        font-size: 14px;
    }
}

/* ========================================
   Accessibility - Reduced Motion
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .service-card-modern:hover,
    .tech-tag:hover,
    .btn-cta-primary:hover,
    .btn-cta-secondary:hover,
    .about-highlight-card:hover,
    .project-card:hover,
    .hero-link:hover,
    .project-link:hover,
    .platform-item:hover,
    .service-highlight:hover {
        transform: none;
    }

    .service-card-modern:hover .service-icon-wrapper {
        transform: none;
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .about-cta-section,
    .about-cta-buttons,
    .about-hero-links {
        display: none;
    }

    .about-hero {
        padding: 24px 0;
    }

    .service-card-modern,
    .tech-category,
    .project-card {
        break-inside: avoid;
        page-break-inside: avoid;
    }

    .project-actions {
        display: none;
    }

    .project-url-display {
        border: 1px solid var(--about-border);
        background: var(--about-bg);
    }

    .project-url-link::after {
        content: " (" attr(href) ")";
        font-size: 10px;
        color: var(--about-text-muted);
    }
}