/* ==========================================================================
   FORTUNE 500 EXECUTIVE DESIGN SYSTEM
   Theme: Minimal Dark Opulence (Apple Spacing + Microsoft Fluent Accents)
   Synchronized Production Version - Cleared of Mismatched and Unused Variants
   ========================================================================== */

:root {
    /* Color Framework */
    --canvas-deep: #050B14;       /* Pitch premium dark midnight */
    --canvas-sheet: #0D1625;      /* Elevated layout container navy */
    --canvas-border: rgba(255, 255, 255, 0.06);
    
    --brand-gold-gradient: linear-gradient(135deg, #FFF3CC 0%, #D4AF37 50%, #AA820A 100%);
    --brand-gold-solid: #D4AF37;
    --brand-fluent-blue: #0078D4;
    
    --text-pure: #FFFFFF;
    --text-silver: #D2D9E4;
    --text-dim: #7C8B9E;

    /* Typographic Weights */
    --font-primary: 'Inter', system-ui, -apple-system, sans-serif;
    
    /* Layout Constants */
    --section-gap: 160px;
    --radius-executive: 12px;
    --radius-sm: 8px;
    --bezier-fluent: cubic-bezier(0.1, 0.9, 0.2, 1);
    --shadow-soft: 0 12px 40px rgba(0, 0, 0, 0.25);
    --shadow-fluent: 0 4px 24px rgba(0, 120, 212, 0.15);
}

/* Core Accessibility Resets */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--canvas-deep);
    color: var(--text-silver);
    font-family: var(--font-primary);
    -webkit-font-smoothing: antialiased;
}

body {
    overflow-x: hidden;
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 3rem;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ==========================================================================
   TYPOGRAPHY DEFINITIONS
   ========================================================================== */

.section-title {
    font-size: 3.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-pure);
    text-align: center;
    margin-bottom: 0.75rem;
    line-height: 1.15;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-dim);
    text-align: center;
    max-width: 700px;
    margin: 0 auto 5.5rem auto;
    font-weight: 300;
}

/* Grid Topologies */
.grid-2-col { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.grid-3-col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem; }
.grid-4-col { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

/* Interactive Command Elements */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1.1rem 2.4rem;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.4s var(--bezier-fluent);
    cursor: pointer;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--brand-gold-gradient);
    color: #050B14;
    font-weight: 600;
    border: none;
    box-shadow: var(--shadow-fluent);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 35px rgba(212, 175, 55, 0.2);
}

.btn-secondary {
    background: transparent;
    color: var(--text-pure);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.03);
    border-color: var(--text-pure);
}

.btn-tertiary {
    background-color: transparent;
    color: var(--brand-gold-solid);
    border: none;
    padding: 0.5rem;
}

.btn-tertiary:hover {
    color: var(--text-pure);
    text-decoration: underline;
}

/* ==========================================================================
   GLASSMORPHIC NAVIGATION HEADER
   ========================================================================== */

.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(5, 11, 20, 0.75);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--canvas-border);
    transition: all 0.3s ease;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 90px;
}

.nav-logo {
    height: 48px;
    width: auto;
    object-fit: contain;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 3rem;
}

.nav-link {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: color 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--text-pure);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--brand-gold-solid);
    transition: all 0.4s var(--bezier-fluent);
}

.nav-link.active::after, .nav-link:hover::after {
    width: 100%;
}

.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

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

.hero-section {
    padding-top: 220px;
    padding-bottom: var(--section-gap);
    min-height: 95vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 5rem;
    align-items: center;
}

.hero-title {
    font-size: 5rem;
    font-weight: 700;
    line-height: 0.95;
    letter-spacing: -0.03em;
    color: var(--text-pure);
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 2rem;
    font-weight: 300;
    letter-spacing: -0.01em;
    color: var(--text-silver);
    margin-bottom: 2.5rem;
}

.hero-summary {
    font-size: 1.25rem;
    color: var(--text-dim);
    line-height: 1.75;
    font-weight: 300;
    margin-bottom: 3.5rem;
}

.hero-actions {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.hero-image-wrapper {
    position: relative;
    justify-self: center;
}

.hero-image {
    width: 360px;
    height: 460px;
    object-fit: cover;
    border-radius: var(--radius-executive);
    z-index: 2;
    position: relative;
    box-shadow: 0 30px 60px rgba(0,0,0,0.5);
}

.image-accent-border {
    position: absolute;
    bottom: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border-left: 1px solid var(--brand-gold-solid);
    border-bottom: 1px solid var(--brand-gold-solid);
    border-radius: var(--radius-executive);
    z-index: 1;
    opacity: 0.3;
}

/* ==========================================================================
   EXECUTIVE SNAPSHOT TRACK
   ========================================================================== */

.snapshot-section {
    padding-bottom: var(--section-gap);
}

.snapshot-card {
    background: var(--canvas-sheet);
    border: 1px solid var(--canvas-border);
    padding: 3rem 2rem;
    border-radius: var(--radius-executive);
    text-align: center;
    box-shadow: var(--shadow-soft);
}

.snapshot-number {
    display: block;
    font-size: 3.5rem;
    color: var(--text-pure);
    font-weight: 700;
    line-height: 1;
    margin-bottom: 0.75rem;
}

.snapshot-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--brand-gold-solid);
    letter-spacing: 0.05em;
}

/* ==========================================================================
   TIMELINE ARCHITECTURE
   ========================================================================== */

.timeline-section {
    padding: var(--section-gap) 0;
    border-top: 1px solid var(--canvas-border);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 30px;
    height: 100%;
    width: 2px;
    background-color: rgba(255, 255, 255, 0.05);
}

.timeline-item {
    position: relative;
    margin-bottom: 5rem;
    padding-left: 80px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    position: absolute;
    top: 8px;
    left: 21px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--canvas-deep);
    border: 4px solid var(--brand-gold-solid);
    z-index: 5;
}

.timeline-info {
    margin-bottom: 1.5rem;
}

.timeline-date {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--brand-gold-solid);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.timeline-role {
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-pure);
}

.timeline-company {
    font-size: 1.1rem;
    color: var(--text-silver);
    font-weight: 400;
}

.timeline-body p {
    font-size: 1.15rem;
    line-height: 1.7;
    color: var(--text-dim);
    font-weight: 300;
    margin-bottom: 2rem;
}

.impact-list {
    list-style: none;
    display: grid;
    gap: 1.25rem;
}

.impact-list li {
    font-size: 1.05rem;
    line-height: 1.6;
    color: var(--text-silver);
    font-weight: 300;
    padding-left: 2rem;
    position: relative;
}

.impact-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    width: 12px;
    height: 1px;
    background: var(--brand-gold-solid);
}

/* ==========================================================================
   COMPETENCY TILES
   ========================================================================== */

.expertise-section {
    padding: var(--section-gap) 0;
    background-color: rgba(13, 22, 37, 0.3);
}

.expertise-card {
    background: var(--canvas-sheet);
    border: 1px solid var(--canvas-border);
    padding: 3.5rem 2.5rem;
    border-radius: var(--radius-executive);
    position: relative;
    transition: all 0.4s var(--bezier-fluent);
}

.expertise-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: var(--shadow-soft);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.expertise-card h3 {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--text-pure);
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

.expertise-card p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-dim);
    font-weight: 300;
}

/* ==========================================================================
   LEADERSHIP EXCELLENCE
   ========================================================================== */

.leadership-section {
    padding: var(--section-gap) 0;
}

.quote-card {
    background: var(--canvas-sheet);
    border: 1px solid var(--canvas-border);
    padding: 4rem 3.5rem;
    border-radius: var(--radius-executive);
    position: relative;
    border-left: 4px solid var(--brand-gold-solid);
}

.quote-text {
    font-size: 1.25rem;
    font-style: italic;
    color: var(--text-pure);
    line-height: 1.7;
    font-weight: 300;
    margin-bottom: 2.5rem;
}

.quote-author {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--brand-gold-solid);
}

.author-title {
    font-size: 0.85rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.25rem;
}

/* ==========================================================================
   CREDENTIALS & TECH BADGES
   ========================================================================== */

.certifications-section {
    padding: var(--section-gap) 0;
    border-top: 1px solid var(--canvas-border);
}

.cert-card {
    background: var(--canvas-sheet);
    border: 1px solid var(--canvas-border);
    padding: 2.5rem 2rem;
    border-radius: var(--radius-executive);
    text-align: center;
}

.cert-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(212, 175, 55, 0.1);
    color: var(--brand-gold-solid);
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 1.5rem;
    letter-spacing: 0.03em;
}

.cert-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-pure);
    margin-bottom: 0.5rem;
}

.cert-issuer {
    font-size: 0.9rem;
    color: var(--text-dim);
}

.tech-stack-wrapper {
    margin-top: 60px;
    background: var(--canvas-sheet);
    border: 1px solid var(--canvas-border);
    padding: 4rem;
    border-radius: var(--radius-executive);
    text-align: center;
}

.tech-stack-title {
    font-size: 1.35rem;
    color: var(--text-pure);
    margin-bottom: 2.5rem;
    font-weight: 500;
}

.badge-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.tech-badge {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-silver);
    padding: 0.75rem 1.75rem;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.02);
    transition: all 0.4s var(--bezier-fluent);
}

.tech-badge:hover {
    background: var(--brand-fluent-blue);
    color: #FFF;
}

/* ==========================================================================
   CONNECTION SUITE
   ========================================================================== */

.contact-section {
    padding: var(--section-gap) 0;
}

.contact-container {
    width: 100%;
}

.contact-card {
    background: linear-gradient(145deg, #0D1625 0%, #050B14 100%);
    border: 1px solid var(--canvas-border);
    border-radius: var(--radius-executive);
    padding: 5rem;
    box-shadow: var(--shadow-soft);
}

.contact-layout {
    display: grid;
    grid-template-columns: 0.6fr 1.4fr;
    gap: 5rem;
    align-items: center;
}

.contact-image-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2.5rem;
}

.contact-avatar {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid var(--brand-gold-solid);
}

.contact-logo-brand {
    height: 44px;
    width: auto;
    object-fit: contain;
}

.contact-content-area h2 {
    font-size: 2.75rem;
    color: var(--text-pure);
    margin-bottom: 1.5rem;
}

.contact-content-area p {
    font-size: 1.15rem;
    color: var(--text-dim);
    line-height: 1.7;
    font-weight: 300;
    margin-bottom: 3.5rem;
}

.contact-details {
    display: grid;
    gap: 2rem;
    margin-bottom: 3rem;
}

.contact-link {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 1rem;
    color: var(--text-pure);
    font-size: 1.35rem;
    font-weight: 300;
    transition: all 0.3s ease;
}

a.contact-link:hover {
    color: var(--brand-gold-solid);
}

.contact-cta-buttons {
    display: flex;
    gap: 1.5rem;
}

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

.main-footer {
    padding: 4rem 0;
    background: #03060C;
    border-top: 1px solid var(--canvas-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-dim);
}

.footer-tagline {
    color: var(--brand-gold-solid);
}

/* ==========================================================================
   SCROLL INTERSECT ENGINE STYLING
   ========================================================================== */

.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1.2s var(--bezier-fluent), transform 1.2s var(--bezier-fluent);
    will-change: transform, opacity;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   RESPONSIVE DESIGN SYSTEM OVERHAUL
   ========================================================================== */

@media (max-width: 1100px) {
    .grid-3-col { grid-template-columns: repeat(2, 1fr); }
    .grid-4-col { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
    .hero-container { grid-template-columns: 1fr; text-align: center; }
    .hero-summary { margin-left: auto; margin-right: auto; }
    .hero-actions { justify-content: center; }
    .hero-image-wrapper { order: -1; margin-bottom: 3rem; }
    .contact-layout { grid-template-columns: 1fr; gap: 3rem; }
}

@media (max-width: 768px) {
    :root { --section-gap: 100px; }
    .section-title { font-size: 2.5rem; }
    .hero-title { font-size: 3.5rem; }
    .grid-2-col, .grid-3-col, .grid-4-col { grid-template-columns: 1fr; }
    
    /* Mobile Fixed Drawer Architecture */
    .mobile-nav-toggle {
        display: block;
        position: relative;
        z-index: 2000;
        width: 30px;
        height: 30px;
    }
    
    .hamburger-bar, .hamburger-bar::before, .hamburger-bar::after {
        width: 26px;
        height: 2px;
        background-color: var(--text-pure);
        position: absolute;
        transition: transform 0.3s ease, top 0.3s ease;
    }
    .hamburger-bar { top: 14px; }
    .hamburger-bar::before { content: ''; top: -8px; left: 0; }
    .hamburger-bar::after { content: ''; top: 8px; left: 0; }
    
    .mobile-nav-toggle[aria-expanded="true"] .hamburger-bar { background-color: transparent; }
    .mobile-nav-toggle[aria-expanded="true"] .hamburger-bar::before { transform: rotate(45deg); top: 0; }
    .mobile-nav-toggle[aria-expanded="true"] .hamburger-bar::after { transform: rotate(-45deg); top: 0; }
    
    .main-navigation {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        height: 100vh;
        background: var(--canvas-sheet);
        z-index: 1500;
        transition: right 0.4s var(--bezier-fluent);
        box-shadow: -10px 0 40px rgba(0,0,0,0.5);
    }
    .main-navigation.open { right: 0; }
    .nav-links { flex-direction: column; padding: 140px 3rem; gap: 2.5rem; }
    .nav-link { font-size: 1.1rem; }
    
    .timeline::before { left: 15px; }
    .timeline-item { padding-left: 45px; }
    .timeline-marker { left: 6px; }
    .contact-card { padding: 2.5rem; }
    .footer-content { flex-direction: column; gap: 1rem; text-align: center; }
}