/* ============================================
   PROFESSIONAL ABOUT US PAGE DESIGN
   Senior-Level UI/UX Implementation
   Brand: Dark Green (#002b1b) + Teal Accents
============================================= */

:root {
    /* Brand Colors */
    --brand-primary: #002b1b;
    --brand-secondary: #00d9a3;
    --brand-accent: #00ffc8;
    --brand-dark: #001a10;
    
    /* Neutral Colors */
    --neutral-white: #ffffff;
    --neutral-gray-50: #f9fafb;
    --neutral-gray-100: #f3f4f6;
    --neutral-gray-200: #e5e7eb;
    --neutral-gray-300: #d1d5db;
    --neutral-gray-600: #4b5563;
    --neutral-gray-800: #1f2937;
    --neutral-gray-900: #111827;
    
    /* Semantic Colors */
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-tertiary: #6b7280;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-brand: 0 20px 40px rgba(0, 43, 27, 0.15);
    
    /* Spacing (8px grid system) */
    --space-xs: 0.5rem;    /* 8px */
    --space-sm: 1rem;      /* 16px */
    --space-md: 1.5rem;    /* 24px */
    --space-lg: 2rem;      /* 32px */
    --space-xl: 3rem;      /* 48px */
    --space-2xl: 4rem;     /* 64px */
    --space-3xl: 6rem;     /* 96px */
    
    /* Border Radius */
    --radius-sm: 0.375rem;  /* 6px */
    --radius-md: 0.5rem;    /* 8px */
    --radius-lg: 1rem;      /* 16px */
    --radius-xl: 1.5rem;    /* 24px */
    --radius-2xl: 2rem;     /* 32px */
    --radius-full: 9999px;
    
    /* Typography */
    --font-display: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 600ms cubic-bezier(0.4, 0, 0.1, 1);
}

/* ============================================
   SECTION 1: HERO ABOUT US SECTION
   Two-column layout with images & content
============================================= */

.about-hero-section {
    padding: var(--space-3xl) 0;
    background: linear-gradient(135deg, var(--neutral-gray-50) 0%, var(--neutral-white) 100%);
    position: relative;
    overflow: hidden;
}

.about-hero-section::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -5%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 217, 163, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float-slow 25s ease-in-out infinite;
}

@keyframes float-slow {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-30px, -30px) scale(1.1); }
}

/* Image Container - Professional Layout */
.about-images-container {
    position: relative;
    padding-right: var(--space-2xl);
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
}

.about-image-main {
    flex: 1;
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-brand);
    transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.about-image-main:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 30px 60px rgba(0, 43, 27, 0.2);
}

.about-image-main img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    aspect-ratio: 4/5;
}

.about-image-secondary {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 45%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    border: 6px solid var(--neutral-white);
    transition: transform var(--transition-smooth);
}

.about-image-secondary:hover {
    transform: translateY(-5px) scale(1.05);
}

.about-image-secondary img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    aspect-ratio: 1/1;
}

/* Content Area */
.about-content-area {
    padding-left: var(--space-xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.about-content-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
    font-family: var(--font-display);
}

.about-content-description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.about-content-description p {
    margin-bottom: var(--space-md);
}

/* Quote Box */
.about-quote-box {
    position: relative;
    padding: var(--space-lg) var(--space-xl);
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-dark) 100%);
    border-radius: var(--radius-lg);
    margin-top: var(--space-xl);
    box-shadow: var(--shadow-brand);
}

.about-quote-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--brand-secondary), var(--brand-accent));
    border-radius: var(--radius-full);
}

.about-quote-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 217, 163, 0.15);
    border-radius: var(--radius-md);
    color: var(--brand-secondary);
    font-size: 24px;
    margin-bottom: var(--space-md);
}

.about-quote-text {
    font-size: 1.125rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.95);
    font-style: italic;
    margin: 0;
}

/* ============================================
   SECTION 2: KEY FEATURES / VALUES
   4-column grid with icons
============================================= */

.about-features-section {
    padding: var(--space-2xl) 0;
    background: var(--neutral-white);
}

.about-features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.about-feature-card {
    text-align: center;
    padding: var(--space-xl) var(--space-lg);
    background: var(--neutral-gray-50);
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.about-feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--brand-secondary), var(--brand-accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.about-feature-card:hover {
    background: var(--neutral-white);
    border-color: var(--brand-secondary);
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.about-feature-card:hover::before {
    transform: scaleX(1);
}

.about-feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--neutral-white);
    border-radius: var(--radius-lg);
    font-size: 36px;
    transition: all var(--transition-base);
}

.about-feature-card:hover .about-feature-icon {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    color: var(--neutral-white);
    transform: scale(1.1) rotate(5deg);
}

/* Color variations for icons */
.about-feature-card:nth-child(1) .about-feature-icon {
    color: #00d9a3;
}

.about-feature-card:nth-child(2) .about-feature-icon {
    color: #00ffc8;
}

.about-feature-card:nth-child(3) .about-feature-icon {
    color: #00d9a3;
}

.about-feature-card:nth-child(4) .about-feature-icon {
    color: #00ffc8;
}

.about-feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.4;
    transition: color var(--transition-base);
}

.about-feature-card:hover .about-feature-title {
    color: var(--brand-primary);
}

/* ============================================
   SECTION 3: GLOBAL NETWORK / STATS
   Split section with content + image/map
============================================= */

.about-global-section {
    padding: var(--space-3xl) 0;
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-dark) 100%);
    position: relative;
    overflow: hidden;
}

.about-global-section::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 217, 163, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.about-global-content {
    padding-right: var(--space-2xl);
    position: relative;
    z-index: 2;
}

.about-global-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--neutral-white);
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.about-global-description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-xl);
}

.about-global-description p {
    margin-bottom: var(--space-md);
}

.about-global-button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--brand-secondary), var(--brand-accent));
    color: var(--brand-primary);
    font-weight: 700;
    font-size: 1rem;
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: all var(--transition-base);
    box-shadow: 0 10px 30px rgba(0, 217, 163, 0.3);
    position: relative;
    overflow: hidden;
}

.about-global-button::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 var(--transition-smooth);
}

.about-global-button:hover::before {
    left: 100%;
}

.about-global-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 217, 163, 0.4);
    color: var(--brand-primary);
}

.about-global-button i {
    transition: transform var(--transition-base);
}

.about-global-button:hover i {
    transform: translateX(5px);
}

.about-global-image {
    position: relative;
    padding-left: var(--space-lg);
}

.about-global-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
}

/* ============================================
   SECTION 4: VIDEO EXPERIENCE SECTION
   Full-width split with video + content
============================================= */

.about-experience-section {
    background: var(--neutral-gray-50);
}

.about-experience-wrapper {
    display: flex;
    min-height: 600px;
}

.about-experience-video {
    flex: 1;
    position: relative;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-experience-video::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 43, 27, 0.3);
    transition: background var(--transition-base);
}

.about-experience-video:hover::before {
    background: rgba(0, 43, 27, 0.2);
}

.about-video-play-button {
    position: relative;
    z-index: 10;
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--brand-secondary), var(--brand-accent));
    border-radius: var(--radius-full);
    color: var(--brand-primary);
    font-size: 32px;
    text-decoration: none;
    box-shadow: 0 15px 40px rgba(0, 217, 163, 0.5);
    transition: all var(--transition-base);
}

.about-video-play-button::before,
.about-video-play-button::after {
    content: '';
    position: absolute;
    inset: -10px;
    border: 2px solid var(--brand-secondary);
    border-radius: var(--radius-full);
    animation: pulse-ring 2s ease-out infinite;
}

.about-video-play-button::after {
    animation-delay: 1s;
}

@keyframes pulse-ring {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.3); opacity: 0; }
}

.about-video-play-button:hover {
    transform: scale(1.1);
    box-shadow: 0 20px 50px rgba(0, 217, 163, 0.6);
}

.about-video-play-button i {
    margin-left: 6px;
}

.about-experience-content {
    flex: 1;
    padding: var(--space-3xl) var(--space-2xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: var(--neutral-white);
}

.about-experience-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.about-experience-description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.about-experience-description p {
    margin-bottom: var(--space-md);
}

.about-signature-area {
    border-top: 2px solid var(--neutral-gray-200);
    padding-top: var(--space-lg);
}

.about-signature-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: var(--space-md);
}

.about-signature-image img {
    max-width: 200px;
    height: auto;
}

/* ============================================
   SECTION 5: TEAM MEMBERS
   Carousel with professional cards
============================================= */

.about-team-section {
    padding: var(--space-3xl) 0;
    background: var(--neutral-white);
}

.about-section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-2xl);
}

.about-section-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.about-section-description {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.about-team-card {
    background: var(--neutral-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    border: 2px solid var(--neutral-gray-100);
}

.about-team-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--brand-secondary);
}

.about-team-image-container {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1/1;
}

.about-team-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-smooth);
}

.about-team-card:hover .about-team-image-container img {
    transform: scale(1.1);
}

.about-team-social {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-md);
    background: linear-gradient(to top, rgba(0, 43, 27, 0.95), transparent);
    transform: translateY(100%);
    transition: transform var(--transition-base);
}

.about-team-card:hover .about-team-social {
    transform: translateY(0);
}

.about-team-social ul {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    list-style: none;
    padding: 0;
    margin: 0;
}

.about-team-social ul li a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    color: var(--neutral-white);
    text-decoration: none;
    transition: all var(--transition-base);
}

.about-team-social ul li a:hover {
    background: var(--brand-secondary);
    color: var(--brand-primary);
    transform: translateY(-3px);
}

.about-team-info {
    padding: var(--space-lg);
    text-align: center;
}

.about-team-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.about-team-designation {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   SECTION 6: TESTIMONIALS
   Full-width with background image
============================================= */

.about-testimonial-section {
    padding: var(--space-3xl) 0;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
}

.about-testimonial-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 43, 27, 0.92), rgba(0, 26, 16, 0.95));
}

.about-testimonial-content {
    position: relative;
    z-index: 2;
}

.about-testimonial-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.about-testimonial-header .about-section-title {
    color: var(--neutral-white);
}

.about-testimonial-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.about-testimonial-avatar {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--space-lg);
    border-radius: var(--radius-full);
    overflow: hidden;
    border: 4px solid var(--brand-secondary);
    box-shadow: var(--shadow-xl);
}

.about-testimonial-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-testimonial-text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.95);
    font-style: italic;
    margin-bottom: var(--space-lg);
}

.about-testimonial-author {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--neutral-white);
    margin-bottom: var(--space-xs);
}

.about-testimonial-role {
    font-size: 0.875rem;
    color: var(--brand-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   SECTION 7: BRAND LOGOS / CLIENTS
   Simple carousel with clean cards
============================================= */

.about-brands-section {
    padding: var(--space-2xl) 0 var(--space-3xl);
    background: var(--neutral-white);
}

.about-brand-card {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    background: var(--neutral-gray-50);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    border: 2px solid transparent;
    height: 120px;
}

.about-brand-card:hover {
    background: var(--neutral-white);
    border-color: var(--brand-secondary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.about-brand-card img {
    max-width: 150px;
    max-height: 60px;
    width: auto;
    height: auto;
    opacity: 0.6;
    transition: opacity var(--transition-base);
    filter: grayscale(100%);
}

.about-brand-card:hover img {
    opacity: 1;
    filter: grayscale(0%);
}

/* ============================================
   RESPONSIVE DESIGN
   Mobile-first breakpoints
============================================= */

@media (max-width: 1199px) {
    .about-features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 991px) {
    :root {
        --space-3xl: 4rem;
    }
    
    .about-images-container {
        padding-right: 0;
        margin-bottom: var(--space-2xl);
    }
    
    .about-content-area {
        padding-left: 0;
    }
    
    .about-content-title,
    .about-global-title,
    .about-experience-title,
    .about-section-title {
        font-size: 2rem;
    }
    
    .about-experience-wrapper {
        flex-direction: column;
    }
    
    .about-experience-video {
        min-height: 400px;
    }
    
    .about-global-content {
        padding-right: 0;
        margin-bottom: var(--space-2xl);
    }
    
    .about-global-image {
        padding-left: 0;
    }
}

@media (max-width: 767px) {
    .about-features-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .about-feature-card {
        padding: var(--space-lg);
    }
    
    .about-content-title,
    .about-global-title,
    .about-experience-title,
    .about-section-title {
        font-size: 1.75rem;
    }
    
    .about-content-description,
    .about-global-description,
    .about-experience-description {
        font-size: 1rem;
    }
    
    .about-image-secondary {
        width: 40%;
        bottom: -20px;
        right: -20px;
        border-width: 4px;
    }
    
    .about-video-play-button {
        width: 80px;
        height: 80px;
        font-size: 26px;
    }
    
    .about-experience-content {
        padding: var(--space-2xl) var(--space-lg);
    }
    
    .about-testimonial-text {
        font-size: 1.125rem;
    }
}

@media (max-width: 575px) {
    .about-content-title,
    .about-global-title,
    .about-experience-title,
    .about-section-title {
        font-size: 1.5rem;
    }
    
    .about-quote-box {
        padding: var(--space-md) var(--space-lg);
    }
    
    .about-global-button {
        width: 100%;
        justify-content: center;
    }
    
    .about-feature-icon {
        width: 64px;
        height: 64px;
        font-size: 28px;
    }
}

/* ============================================
   ACCESSIBILITY & PERFORMANCE
============================================= */

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

/* Focus visible for keyboard navigation */
.about-global-button:focus-visible,
.about-team-social ul li a:focus-visible,
.about-video-play-button:focus-visible {
    outline: 3px solid var(--brand-secondary);
    outline-offset: 3px;
}

/* Print styles */
@media print {
    .about-team-social,
    .about-video-play-button {
        display: none;
    }
}