/* ============================================
   ABOUT US PAGE - COMPLETE STYLING
   ============================================ */

/* ============ CSS VARIABLES ============ */
:root {
    /* Colors */
    --primary-dark: #1a365d;
    --primary-blue: #2d5a8c;
    --secondary-blue: #4a7ba7;
    --accent-orange: #ff6b35;
    --text-dark: #2d3748;
    --text-light: #718096;
    --white: #ffffff;
    --light-gray: #f7fafc;
    --medium-gray: #edf2f7;
    --dark-gray: #cbd5e0;
    --success-green: #22863a;
    
    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Raleway', sans-serif;
    
    /* Spacing */
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-md: 6px;
    --radius-lg: 8px;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 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);
}

/* ============ GLOBAL STYLES ============ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-dark);
    background-color: var(--white);
    line-height: 1.6;
    font-size: 16px;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ============ BACK TO HOME BUTTON ============ */
.btn-back-home {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    color: var(--accent-orange);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    border: 2px solid whitesmoke;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    margin-bottom: var(--spacing-lg);
}

.btn-back-home:hover {
    background: var(--white);
    color: var(--primary-blue);
    transform: translateX(-4px);
}

.btn-back-home i {
    font-size: 14px;
}

/* ============ HERO SECTION ============ */
.about-hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    color: var(--white);
    padding: 60px var(--spacing-lg);
    text-align: center;
}

.about-hero .container {
    text-align: center;
}

.hero-content h1 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
}

.hero-content p {
    font-size: 20px;
    opacity: 0.95;
}

/* ============ OVERVIEW SECTION ============ */
.section-overview {
    padding: var(--spacing-2xl) var(--spacing-lg);
    background: var(--light-gray);
}

.overview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.overview-content h2 {
    font-size: 36px;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-lg);
    font-weight: 700;
}

.overview-content p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.overview-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.stat-box {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.stat-box:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--accent-orange);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 600;
}

/* ============ MISSION SECTION ============ */
.section-mission {
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.section-mission h2 {
    text-align: center;
    font-size: 36px;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-2xl);
    font-weight: 700;
}

.mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.mission-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition);
}

.mission-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.mission-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-orange) 0%, #ff5722 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 32px;
    margin: 0 auto var(--spacing-lg);
}

.mission-card h3 {
    font-size: 20px;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.mission-card p {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.8;
}

/* ============ WHY CHOOSE US SECTION ============ */
.section-why-choose {
    padding: var(--spacing-2xl) var(--spacing-lg);
    background: var(--light-gray);
}

.section-why-choose h2 {
    text-align: center;
    font-size: 36px;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-2xl);
    font-weight: 700;
}

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

.feature-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 36px;
    margin: 0 auto var(--spacing-lg);
}

.feature-card h3 {
    font-size: 18px;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.feature-card p {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.8;
}

/* ============ STORY SECTION ============ */
.section-story {
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.section-story h2 {
    text-align: center;
    font-size: 36px;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-2xl);
    font-weight: 700;
}

.timeline {
    position: relative;
    padding: var(--spacing-lg) 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--dark-gray);
    transform: translateX(-50%);
}

.timeline-item {
    margin-bottom: var(--spacing-2xl);
    width: 50%;
}

.timeline-item:nth-child(odd) {
    margin-left: 0;
    padding-right: var(--spacing-xl);
    text-align: right;
}

.timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-left: var(--spacing-xl);
    text-align: left;
}

.timeline-date {
    font-size: 24px;
    font-weight: 800;
    color: var(--accent-orange);
    margin-bottom: 8px;
}

.timeline-content {
    background: var(--light-gray);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.timeline-content:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.timeline-content h3 {
    font-size: 18px;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.timeline-content p {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.8;
}

/* ============ TEAM SECTION ============ */
.section-team {
    padding: var(--spacing-2xl) var(--spacing-lg);
    background: var(--light-gray);
}

.section-team h2 {
    text-align: center;
    font-size: 36px;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-2xl);
    font-weight: 700;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.team-member {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.team-member:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.member-image {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 48px;
    margin: 0 auto var(--spacing-lg);
}

.team-member h3 {
    font-size: 18px;
    color: var(--primary-dark);
    margin-bottom: 8px;
    font-weight: 700;
}

.member-position {
    font-size: 13px;
    color: var(--accent-orange);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
}

.member-bio {
    color: var(--text-light);
    font-size: 13px;
    line-height: 1.8;
}

/* ============ CERTIFICATIONS SECTION ============ */
.section-certifications {
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.section-certifications h2 {
    text-align: center;
    font-size: 36px;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-2xl);
    font-weight: 700;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.cert-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    border-top: 4px solid var(--accent-orange);
    transition: var(--transition);
}

.cert-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.cert-icon {
    font-size: 40px;
    color: var(--accent-orange);
    margin-bottom: var(--spacing-md);
}

.cert-card h3 {
    font-size: 16px;
    color: var(--primary-dark);
    margin-bottom: 8px;
    font-weight: 700;
}

.cert-card p {
    font-size: 13px;
    color: var(--text-light);
}

/* ============ CTA SECTION ============ */
.section-cta {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    color: var(--white);
    padding: var(--spacing-2xl) var(--spacing-lg);
    text-align: center;
}

.section-cta h2 {
    font-size: 36px;
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.section-cta p {
    font-size: 16px;
    margin-bottom: var(--spacing-2xl);
    opacity: 0.95;
}

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

.btn-primary,
.btn-secondary {
    padding: 14px 32px;
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
    display: inline-block;
}

.btn-primary {
    background: var(--accent-orange);
    color: var(--white);
    border: 2px solid var(--accent-orange);
}

.btn-primary:hover {
    background: transparent;
    color: var(--accent-orange);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-dark);
    transform: translateY(-2px);
}

/* ============ RESPONSIVE DESIGN ============ */

@media (max-width: 1024px) {
    .overview-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .overview-stats {
        grid-template-columns: 1fr 1fr;
    }

    .timeline::before {
        left: 30px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 80px !important;
        text-align: left !important;
    }

    .timeline-item:nth-child(odd) {
        padding-right: 0;
    }
}

@media (max-width: 768px) {
    .about-hero {
        padding: 40px var(--spacing-lg);
    }

    .hero-content h1 {
        font-size: 32px;
    }

    .hero-content p {
        font-size: 16px;
    }

    .overview-content h2,
    .section-mission h2,
    .section-why-choose h2,
    .section-story h2,
    .section-team h2,
    .section-certifications h2,
    .section-cta h2 {
        font-size: 28px;
    }

    .overview-stats {
        grid-template-columns: 1fr;
    }

    .stat-number {
        font-size: 28px;
    }

    .mission-grid,
    .features-grid,
    .team-grid,
    .certifications-grid {
        grid-template-columns: 1fr;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .about-hero {
        padding: 30px var(--spacing-md);
    }

    .hero-content h1 {
        font-size: 24px;
    }

    .hero-content p {
        font-size: 14px;
    }

    .section-overview,
    .section-mission,
    .section-why-choose,
    .section-story,
    .section-team,
    .section-certifications,
    .section-cta {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .overview-content h2,
    .section-mission h2,
    .section-why-choose h2,
    .section-story h2,
    .section-team h2,
    .section-certifications h2,
    .section-cta h2 {
        font-size: 22px;
        margin-bottom: var(--spacing-lg);
    }

    .stat-box,
    .mission-card,
    .feature-card,
    .team-member,
    .cert-card {
        padding: var(--spacing-lg);
    }

    .stat-number {
        font-size: 24px;
    }

    .timeline-item {
        padding-left: 60px !important;
    }

    .timeline::before {
        left: 20px;
    }

    .cta-buttons {
        gap: var(--spacing-sm);
    }

    .btn-primary,
    .btn-secondary {
        padding: 12px 24px;
        font-size: 13px;
    }
}

/* ============ ANIMATIONS ============ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stat-box,
.mission-card,
.feature-card,
.team-member,
.cert-card {
    animation: fadeIn 0.6s ease-out;
}

/* ============ ACCESSIBILITY ============ */
.btn-primary:focus,
.btn-secondary:focus,
.btn-back-home:focus {
    outline: 2px solid var(--accent-orange);
    outline-offset: 2px;
}