/**
 * Zero Qubit Tech Holding - About Page Styles (2025 Light Theme)
 * Apple-inspired light theme design for the About Us page
 * Following design-system.css guidelines and 2025 design principles
 */

/* =======================================
   About Page Hero Section
   ======================================= */
.about-hero {
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.about-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, var(--primary-subtle) 0%, transparent 60%),
        radial-gradient(circle at 80% 20%, var(--primary-subtle) 0%, transparent 60%);
    pointer-events: none;
}

/* =======================================
   Founder Story Section
   ======================================= */
.founder-story-section {
    position: relative;
    padding: var(--space-4xl) 0 var(--space-4xl);
}

.founder-story-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.founder-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto var(--space-3xl);
}

.founder-intro .body-large {
    font-size: clamp(1.125rem, 2.5vw, 1.25rem);
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: 0;
}

/* Founder Story Content */
.founder-story-content {
    max-width: 900px;
    margin: 0 auto;
}

.founder-text {
    text-align: left;
}

.founder-text p {
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

.founder-text p:last-child {
    margin-bottom: 0;
}

.founder-text strong {
    color: var(--text-primary);
    font-weight: 600;
}

.founder-summary {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.founder-summary .body-large {
    font-size: clamp(1.125rem, 2.5vw, 1.25rem);
    line-height: 1.7;
    color: var(--text-primary);
    font-weight: 500;
}

/* =======================================
   Approach Differentiators Section
   ======================================= */
.approach-section {
    position: relative;
    padding: var(--space-5xl) 0;
    background: var(--bg-accent);
}

.approach-differentiators {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.differentiator-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.differentiator-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: var(--space-2xl);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.320, 1);
    position: relative;
    overflow: hidden;
    min-height: 280px;
    display: flex;
    flex-direction: column;
}

.differentiator-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.differentiator-card:hover {
    transform: translateY(-6px) scale(1.02);
    border-color: var(--glass-border-hover);
    box-shadow: var(--glass-shadow-elevated), var(--glow-primary);
    background: rgba(255, 255, 255, 0.92);
}

.differentiator-card:hover::before {
    opacity: 1;
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0, 122, 204, 0.25);
    flex-shrink: 0;
}

.card-icon i {
    font-size: 1.5rem;
    color: var(--text-inverse);
}

.card-header h3 {
    color: var(--text-primary);
    margin: 0;
    font-weight: 600;
    line-height: 1.2;
}

.card-content {
    flex: 1;
}

.card-content p {
    color: var(--text-secondary);
    line-height: 1.65;
    font-size: 1rem;
    margin: 0;
}

/* =======================================
   Current Focus Section
   ======================================= */
.current-focus-section {
    position: relative;
    padding: var(--space-5xl) 0;
}

.current-focus-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.focus-overview {
    text-align: center;
    max-width: 900px;
    margin: 0 auto var(--space-4xl);
}

.focus-overview .body-large {
    font-size: clamp(1.125rem, 2.5vw, 1.25rem);
    line-height: 1.7;
    color: var(--text-primary);
}

.focus-areas {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-4xl);
}

.focus-area-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: var(--space-2xl);
    transition: all 0.3s ease;
    text-align: center;
}

.focus-area-card:hover {
    border-color: var(--border-medium);
    transform: translateY(-2px);
    box-shadow: var(--glass-shadow-medium);
}

.focus-area-card h4 {
    color: var(--primary);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.focus-area-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.focus-philosophy {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.focus-philosophy .body-large {
    font-size: clamp(1.125rem, 2.5vw, 1.25rem);
    line-height: 1.7;
    color: var(--text-primary);
}

/* =======================================
   Mission Section
   ======================================= */
.mission-section {
    position: relative;
    padding: var(--space-5xl) 0;
    background: var(--bg-secondary);
}

.mission-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.mission-statement {
    text-align: center;
    max-width: 900px;
    margin: 0 auto var(--space-4xl);
}

.mission-statement .body-large {
    font-size: clamp(1.125rem, 2.5vw, 1.25rem);
    line-height: 1.7;
    color: var(--text-primary);
    margin-bottom: var(--space-xl);
}

.mission-statement .body-large:last-child {
    margin-bottom: 0;
}

.mission-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.value-item {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: var(--space-2xl);
    text-align: center;
    transition: all 0.3s ease;
}

.value-item:hover {
    transform: translateY(-4px);
    border-color: var(--glass-border-hover);
    box-shadow: var(--glass-shadow-medium);
}

.value-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 16px;
    margin: 0 auto var(--space-lg);
    box-shadow: 0 4px 12px rgba(0, 122, 204, 0.25);
}

.value-icon i {
    font-size: 1.5rem;
    color: var(--text-inverse);
}

.value-item h4 {
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.value-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* =======================================
   Final CTA Section
   ======================================= */
.final-cta-section {
    position: relative;
    padding: var(--space-5xl) 0;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.final-cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, var(--primary-subtle) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, var(--primary-subtle) 0%, transparent 50%);
    pointer-events: none;
}

.cta-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    text-align: center;
    position: relative;
    z-index: 2;
}

.cta-content {
    margin-bottom: var(--space-4xl);
}

.cta-content .body-large {
    font-size: clamp(1.125rem, 2.5vw, 1.25rem);
    line-height: 1.7;
    color: var(--text-primary);
    margin-bottom: var(--space-xl);
}

.cta-content .body-large:last-child {
    margin-bottom: 0;
}

.cta-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.cta-note .body-small {
    color: var(--text-tertiary);
    font-style: italic;
}

/* =======================================
   Responsive Design
   ======================================= */
@media (max-width: 768px) {
    .founder-story-container,
    .approach-differentiators,
    .current-focus-container,
    .mission-container,
    .cta-container {
        padding: 0 var(--space-lg);
    }
    
    .founder-vision-grid {
        gap: var(--space-lg);
    }
    
    .differentiator-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .focus-areas {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .mission-values {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .card-header {
        flex-direction: column;
        text-align: center;
        gap: var(--space-md);
    }
    
    .card-icon {
        width: 56px;
        height: 56px;
    }
    
    .card-icon i {
        font-size: 1.25rem;
    }
    
    .differentiator-card {
        min-height: auto;
        padding: var(--space-xl);
    }
    
    .vision-card {
        padding: var(--space-lg);
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-actions .btn-primary,
    .cta-actions .btn-secondary {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .founder-story-section,
    .approach-section,
    .current-focus-section,
    .mission-section,
    .final-cta-section {
        padding: var(--space-4xl) 0 var(--space-3xl);
    }
    
    .founder-intro,
    .focus-overview,
    .mission-statement {
        margin-bottom: var(--space-3xl);
    }
    
    .founder-vision-grid,
    .focus-areas,
    .mission-values {
        margin-bottom: var(--space-3xl);
    }
    
    .cta-content {
        margin-bottom: var(--space-3xl);
    }
    
    .vision-card,
    .differentiator-card,
    .focus-area-card,
    .value-item {
        padding: var(--space-md);
    }
    
    .value-icon,
    .card-icon {
        width: 48px;
        height: 48px;
    }
    
    .value-icon i,
    .card-icon i {
        font-size: 1.125rem;
    }
}

/* =======================================
   Enhanced Accessibility & Focus States
   ======================================= */
.vision-card:focus-within,
.differentiator-card:focus-within,
.focus-area-card:focus-within,
.value-item:focus-within {
    border-color: var(--glass-border-hover);
    box-shadow: 0 0 0 3px var(--primary-subtle);
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .vision-card,
    .differentiator-card,
    .focus-area-card,
    .value-item {
        transition: none;
    }
    
    .vision-card:hover,
    .differentiator-card:hover,
    .focus-area-card:hover,
    .value-item:hover {
        transform: none;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .vision-card,
    .differentiator-card,
    .focus-area-card,
    .value-item {
        border-width: 2px;
    }
    
    .card-icon,
    .value-icon {
        border: 2px solid var(--text-primary);
    }
}