/* ============================================
   GLOBAL STYLES & VARIABLES
   ============================================ */

:root {
    --white: #FFFFFF;
    --off-white: #F8F9FA;
    --charcoal: #2C3E50;
    --charcoal-light: #34495E;
    --midnight-blue: #1A365D;
    --midnight-blue-light: #2C5282;
    --accent-blue: #3182CE;
    --text-dark: #1A202C;
    --text-medium: #4A5568;
    --text-light: #718096;
    --border-color: #E2E8F0;

    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s ease;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-padding {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--charcoal);
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--midnight-blue), var(--accent-blue));
    margin: 1rem auto 0;
    border-radius: 2px;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--midnight-blue) 0%, var(--charcoal) 100%);
    color: var(--white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(49, 130, 206, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-name {
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.hero-title {
    font-size: 2rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    letter-spacing: 0.05em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.85);
    max-width: 700px;
    margin: 0 auto 1.5rem;
    font-weight: 500;
}

.hero-description {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.75);
    max-width: 650px;
    margin: 0 auto 3rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--white);
    color: var(--midnight-blue);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-color: var(--off-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* Fade-in animations */
.fade-in {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

.fade-in-delay-1 {
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.2s forwards;
}

.fade-in-delay-2 {
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.4s forwards;
}

.fade-in-delay-3 {
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.6s forwards;
}

.fade-in-delay-4 {
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.8s forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   EXECUTIVE SUMMARY
   ============================================ */

.summary {
    background-color: var(--white);
}

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

.summary-content p {
    font-size: 1.2rem;
    color: var(--text-medium);
    margin-bottom: 1.5rem;
    line-height: 1.9;
}

/* ============================================
   MANAGERIAL COMPETENCIES
   ============================================ */

.competencies {
    background-color: var(--off-white);
}

.competency-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.competency-card {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    border-left: 4px solid var(--midnight-blue);
    opacity: 0;
    transform: translateY(30px);
}

.competency-card.visible {
    opacity: 1;
    transform: translateY(0);
}

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

.competency-number {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--midnight-blue);
    margin-bottom: 1rem;
    letter-spacing: 0.1em;
}

.competency-card h3 {
    font-size: 1.4rem;
    color: var(--charcoal);
    margin-bottom: 1rem;
    font-weight: 700;
    line-height: 1.4;
}

.competency-card p {
    font-size: 1rem;
    color: var(--text-medium);
    line-height: 1.7;
}

/* ============================================
   PROFESSIONAL TIMELINE
   ============================================ */

.timeline {
    background-color: var(--white);
}

.timeline-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light);
    margin-top: -2rem;
    margin-bottom: 4rem;
    font-style: italic;
}

.timeline-container {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    padding-left: 3rem;
}

.timeline-container::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--midnight-blue) 0%, var(--accent-blue) 100%);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 2rem;
    opacity: 0;
    transform: translateX(-30px);
    transition: var(--transition-smooth);
}

.timeline-item.visible {
    opacity: 1;
    transform: translateX(0);
}

.timeline-marker {
    position: absolute;
    left: -2.5rem;
    top: 0;
    width: 20px;
    height: 20px;
    background-color: var(--midnight-blue);
    border: 4px solid var(--white);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--midnight-blue-light);
    z-index: 1;
}

.timeline-item:hover .timeline-marker {
    background-color: var(--accent-blue);
    box-shadow: 0 0 0 6px rgba(49, 130, 206, 0.3);
}

.timeline-content {
    background-color: var(--off-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.timeline-item:hover .timeline-content {
    box-shadow: var(--shadow-md);
    transform: translateX(8px);
}

.timeline-content h3 {
    font-size: 1.5rem;
    color: var(--charcoal);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.timeline-date {
    display: inline-block;
    font-size: 0.95rem;
    color: var(--midnight-blue);
    font-weight: 600;
    margin-bottom: 1rem;
    padding: 0.25rem 0.75rem;
    background-color: rgba(26, 54, 93, 0.1);
    border-radius: 4px;
}

.timeline-content p {
    font-size: 1.05rem;
    color: var(--text-medium);
    line-height: 1.7;
    margin-top: 1rem;
}

.timeline-content strong {
    color: var(--midnight-blue);
    font-weight: 600;
}

/* ============================================
   LEADERSHIP STATEMENT
   ============================================ */

.leadership {
    background: linear-gradient(135deg, var(--charcoal) 0%, var(--midnight-blue) 100%);
    color: var(--white);
}

.leadership .section-title {
    color: var(--white);
}

.leadership .section-title::after {
    background: linear-gradient(90deg, var(--white), var(--accent-blue));
}

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

.leadership-content p {
    font-size: 1.25rem;
    line-height: 1.9;
    margin-bottom: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact {
    background-color: var(--off-white);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    max-width: 900px;
    margin: 0 auto;
}

.contact-item {
    text-align: center;
    padding: 2rem;
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.contact-item h3 {
    font-size: 1.2rem;
    color: var(--charcoal);
    margin-bottom: 1rem;
    font-weight: 700;
}

.contact-item a {
    font-size: 1.1rem;
    color: var(--midnight-blue);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

.contact-item a:hover {
    color: var(--accent-blue);
    text-decoration: underline;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background-color: var(--charcoal);
    color: var(--white);
    padding: 3rem 0;
    text-align: center;
}

.footer-slogan {
    font-size: 1.2rem;
    font-weight: 600;
    font-style: italic;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

.footer-copyright {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
}

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

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .hero-name {
        font-size: 3rem;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .competency-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .timeline-container {
        padding-left: 2rem;
    }

    .timeline-marker {
        left: -1.85rem;
        width: 16px;
        height: 16px;
    }

    .contact-info {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

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

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero-name {
        font-size: 2.5rem;
    }

    .competency-card,
    .timeline-content,
    .contact-item {
        padding: 1.5rem;
    }
}