/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
    /* Colors */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #0e0f15;
    --color-bg-tertiary: #12131a;
    --color-bg-card: #15161f;
    --color-bg-card-hover: #1a1b26;
    --color-accent: #c9a84c;
    --color-accent-light: #dfc06a;
    --color-accent-dim: rgba(201, 168, 76, 0.15);
    --color-accent-subtle: rgba(201, 168, 76, 0.08);
    --color-text-primary: #e8e4dc;
    --color-text-secondary: #9a968e;
    --color-text-muted: #5e5b55;
    --color-border: rgba(255, 255, 255, 0.06);
    --color-border-hover: rgba(201, 168, 76, 0.25);
    --color-white: #ffffff;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    --space-3xl: 8rem;

    /* Container */
    --container-max: 1280px;
    --container-narrow: 800px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --duration-fast: 0.2s;
    --duration-normal: 0.4s;
    --duration-slow: 0.8s;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

::selection {
    background-color: var(--color-accent);
    color: var(--color-bg-primary);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section {
    padding: var(--space-3xl) 0;
    position: relative;
}

/* Reveal animations */
.reveal-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--duration-slow) var(--ease-out),
                transform var(--duration-slow) var(--ease-out);
    transition-delay: var(--delay, 0s);
}

.reveal-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   SECTION LABELS
   ============================================ */
.section-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.label-number {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--color-accent);
}

.label-line {
    width: 40px;
    height: 1px;
    background: var(--color-accent);
    display: block;
}

.label-text {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.section-headline {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 500;
    line-height: 1.15;
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
}

.section-headline em {
    font-style: italic;
    color: var(--color-accent);
}

.section-intro {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 680px;
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    transition: all var(--duration-normal) var(--ease-out);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
    transition: color var(--duration-fast);
}

.logo-dot {
    color: var(--color-accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-links a {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--color-text-secondary);
    transition: color var(--duration-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width var(--duration-normal) var(--ease-out);
}

.nav-links a:hover {
    color: var(--color-text-primary);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: 0.6rem 1.4rem !important;
    border: 1px solid var(--color-accent);
    border-radius: 100px;
    color: var(--color-accent) !important;
    transition: all var(--duration-fast) !important;
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    background: var(--color-accent) !important;
    color: var(--color-bg-primary) !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: all var(--duration-fast);
    border-radius: 2px;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 70px;
}

.hero-bg-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(10, 10, 15, 0.95) 0%,
        rgba(10, 10, 15, 0.7) 50%,
        rgba(10, 10, 15, 0.4) 100%
    );
    z-index: 2;
}

.hero-grid-pattern {
    position: absolute;
    inset: 0;
    z-index: 1;
    background-image: 
        linear-gradient(rgba(201, 168, 76, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(201, 168, 76, 0.03) 1px, transparent 1px);
    background-size: 80px 80px;
}

.hero-image-container {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right,
        var(--color-bg-primary) 0%,
        rgba(10, 10, 15, 0.5) 60%,
        transparent 100%
    );
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-sm) var(--space-lg);
    width: 100%;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: var(--space-xl);
    align-items: center;
}

.hero-text-col {
    display: flex;
    flex-direction: column;
}

.hero-portrait-col {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    opacity: 0;
    animation: fadeInUp 0.9s var(--ease-out) 0.5s forwards;
}

.portrait-card {
    position: relative;
    width: 100%;
    max-width: 320px;
    aspect-ratio: 3.2 / 4.1;
    border-radius: 24px;
    overflow: hidden;
    background: var(--color-bg-primary);
    border: 1px solid rgba(201, 168, 76, 0.25);
    box-shadow: 
        0 25px 60px -10px rgba(0, 0, 0, 0.85),
        0 0 50px rgba(201, 168, 76, 0.15);
    transition: transform var(--duration-slow) var(--ease-out),
                box-shadow var(--duration-slow) var(--ease-out),
                border-color var(--duration-normal) var(--ease-out);
}

.portrait-card:hover {
    transform: translateY(-8px) scale(1.01);
    border-color: rgba(201, 168, 76, 0.45);
    box-shadow: 
        0 35px 80px -15px rgba(0, 0, 0, 0.95),
        0 0 70px rgba(201, 168, 76, 0.25);
}

.portrait-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    filter: contrast(1.04) brightness(0.92);
    transition: transform var(--duration-slow) var(--ease-out);
}

.portrait-card:hover .portrait-img {
    transform: scale(1.04);
}

.portrait-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: 
        linear-gradient(to bottom, rgba(10, 10, 15, 0.35) 0%, transparent 25%, transparent 65%, rgba(10, 10, 15, 0.95) 100%),
        linear-gradient(to right, rgba(10, 10, 15, 0.4) 0%, transparent 20%, transparent 80%, rgba(10, 10, 15, 0.4) 100%),
        radial-gradient(circle at 50% 30%, transparent 30%, rgba(10, 10, 15, 0.75) 85%, rgba(10, 10, 15, 0.96) 100%);
}

.portrait-frame {
    position: absolute;
    inset: 0;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    pointer-events: none;
}

.hero-eyebrow {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xs);
    opacity: 0;
    animation: fadeInUp 0.8s var(--ease-out) 0.3s forwards;
}

.eyebrow-line {
    width: 40px;
    height: 1px;
    background: var(--color-accent);
}

.eyebrow-text {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
}

.hero-name {
    margin-bottom: var(--space-xs);
}

.name-line {
    display: block;
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.05;
    opacity: 0;
    animation: fadeInUp 0.8s var(--ease-out) forwards;
}

.name-first {
    font-size: clamp(2rem, 3.8vw, 3.5rem);
    color: var(--color-text-primary);
    animation-delay: 0.5s;
}

.name-middle {
    font-size: clamp(2rem, 3.8vw, 3.5rem);
    color: var(--color-text-primary);
    font-style: italic;
    animation-delay: 0.65s;
}

.name-last {
    font-size: clamp(2rem, 3.8vw, 3.5rem);
    color: var(--color-text-primary);
    animation-delay: 0.8s;
}

.accent-dot {
    color: var(--color-accent);
}

.hero-tagline {
    margin-bottom: var(--space-sm);
    opacity: 0;
    animation: fadeInUp 0.8s var(--ease-out) 1s forwards;
}

.tagline-pillars {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    flex-wrap: wrap;
}

.pillar {
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--color-text-secondary);
    padding: 0.3rem 0.85rem;
    border: 1px solid var(--color-border);
    border-radius: 100px;
    background: rgba(255, 255, 255, 0.02);
}

.pillar-divider {
    color: var(--color-accent);
    font-weight: 300;
    font-size: 0.9rem;
}

.hero-statement {
    max-width: 520px;
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    opacity: 0;
    animation: fadeInUp 0.8s var(--ease-out) 1.15s forwards;
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    opacity: 0;
    animation: fadeInUp 0.8s var(--ease-out) 1.3s forwards;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    padding: 0.85rem 2rem;
    background: var(--color-accent);
    color: var(--color-bg-primary);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    border-radius: 100px;
    transition: all var(--duration-normal) var(--ease-out);
}

.btn-primary:hover {
    background: var(--color-accent-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(201, 168, 76, 0.25);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    padding: 0.85rem 2rem;
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    border-radius: 100px;
    transition: all var(--duration-normal) var(--ease-out);
    background: rgba(255, 255, 255, 0.02);
}

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
}

.hero-scroll-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    opacity: 0;
    animation: fadeInUp 0.8s var(--ease-out) 1.5s forwards;
}

.scroll-text {
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.scroll-line {
    width: 40px;
    height: 1px;
    background: var(--color-text-muted);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    left: -100%;
    top: 0;
    width: 100%;
    height: 100%;
    background: var(--color-accent);
    animation: scrollLineMove 2s var(--ease-in-out) infinite;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    background: var(--color-bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.about-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.about-lead {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--color-text-primary);
    font-weight: 400;
}

.about-text p:not(.about-lead) {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.about-visual {
    position: relative;
}

.about-image-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 4/3;
}

.about-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-slow) var(--ease-out);
}

.about-image-wrapper:hover img {
    transform: scale(1.03);
}

.image-frame {
    position: absolute;
    inset: -1px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    pointer-events: none;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.stat-item {
    text-align: center;
    padding: var(--space-md) var(--space-sm);
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    transition: border-color var(--duration-fast);
}

.stat-item:hover {
    border-color: var(--color-border-hover);
}

.stat-number {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 0.4rem;
}

.stat-label {
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

/* ============================================
   EXPERIENCE SECTION
   ============================================ */
.experience {
    background: var(--color-bg-primary);
}

.experience-case {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--duration-normal);
}

.experience-case:hover {
    border-color: var(--color-border-hover);
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-xl);
    border-bottom: 1px solid var(--color-border);
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.case-company {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 0.2rem;
}

.case-location {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.period-badge {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    padding: 0.35rem 0.9rem;
    border: 1px solid var(--color-accent-dim);
    border-radius: 100px;
    background: var(--color-accent-subtle);
}

.case-content {
    display: grid;
    grid-template-columns: 1.12fr 0.88fr;
    gap: 0;
    align-items: stretch;
}

.case-info {
    padding: var(--space-lg) var(--space-xl);
}

.case-role {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 500;
    font-style: italic;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
    line-height: 1.3;
}

.case-context {
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.detail-block {
    margin-bottom: var(--space-md);
}

.detail-block h4 {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 0.35rem;
}

.detail-block p {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.contribution-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.contribution-list li {
    font-size: 0.86rem;
    line-height: 1.55;
    color: var(--color-text-secondary);
    padding-left: 1.1rem;
    position: relative;
}

.contribution-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 4px;
    height: 4px;
    background: var(--color-accent);
    border-radius: 50%;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.tech-tag {
    font-size: 0.72rem;
    font-weight: 500;
    padding: 0.3rem 0.75rem;
    background: var(--color-accent-subtle);
    color: var(--color-accent);
    border-radius: 100px;
    border: 1px solid var(--color-accent-dim);
}

.case-visual {
    position: relative;
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-visual-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 320px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid rgba(201, 168, 76, 0.25);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6);
    transition: border-color var(--duration-normal), transform var(--duration-slow) var(--ease-out);
}

.experience-case:hover .case-visual-wrapper {
    border-color: rgba(201, 168, 76, 0.45);
    transform: translateY(-4px);
}

.case-visual-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform var(--duration-slow) var(--ease-out);
}

.experience-case:hover .case-visual-wrapper img {
    transform: scale(1.03);
}

.case-visual-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: 
        linear-gradient(to bottom, rgba(10, 10, 15, 0.15) 0%, transparent 40%, rgba(10, 10, 15, 0.85) 100%),
        radial-gradient(circle at 50% 50%, transparent 50%, rgba(10, 10, 15, 0.5) 100%);
}

.case-visual-frame {
    position: absolute;
    inset: 0;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.06);
    pointer-events: none;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */
.projects {
    background: var(--color-bg-secondary);
    position: relative;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    position: relative;
    z-index: 2;
    align-items: stretch;
}

.project-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg) var(--space-xl);
    transition: all var(--duration-normal) var(--ease-out);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    opacity: 0;
    transition: opacity var(--duration-normal);
}

.project-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

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

.project-number {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    font-weight: 600;
    color: var(--color-accent-dim);
    line-height: 1;
    margin-bottom: 0.5rem;
    user-select: none;
}

.project-type {
    display: inline-block;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 0.35rem;
}

.project-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 0.4rem;
    line-height: 1.3;
}

.project-desc {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.project-role {
    display: flex;
    gap: 0.5rem;
    margin-bottom: var(--space-md);
    font-size: 0.8rem;
}

.role-label {
    color: var(--color-text-muted);
    font-weight: 500;
}

.role-value {
    color: var(--color-accent);
    font-weight: 600;
}

.project-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.highlight {
    font-size: 0.72rem;
    font-weight: 500;
    padding: 0.3rem 0.75rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    color: var(--color-text-muted);
    transition: all var(--duration-fast);
}

.project-card:hover .highlight {
    border-color: var(--color-border-hover);
    color: var(--color-text-secondary);
}

.projects-visual-accent {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 400px;
    height: 400px;
    opacity: 0.06;
    z-index: 0;
    pointer-events: none;
}

.projects-visual-accent img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============================================
   LEADERSHIP SECTION
   ============================================ */
.leadership {
    background: var(--color-bg-primary);
}

.leadership-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.leadership-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--duration-normal) var(--ease-out);
}

.leadership-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-3px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.2);
}

.leadership-highlight {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, var(--color-bg-card) 0%, rgba(201, 168, 76, 0.04) 100%);
    border-color: var(--color-border-hover);
    padding: var(--space-2xl);
}

.leader-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    color: var(--color-accent);
}

.leader-icon svg {
    width: 28px;
    height: 28px;
}

.leader-period {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
}

.leader-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 0.35rem;
    line-height: 1.3;
}

.leadership-highlight .leader-title {
    font-size: 1.8rem;
}

.leader-org {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.5;
    margin-bottom: var(--space-md);
}

.leader-desc {
    font-size: 0.9rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

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

.leader-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.leader-tags span {
    font-size: 0.72rem;
    font-weight: 500;
    padding: 0.3rem 0.75rem;
    background: var(--color-accent-subtle);
    border: 1px solid var(--color-accent-dim);
    border-radius: 100px;
    color: var(--color-accent);
}

/* ============================================
   SKILLS SECTION
   ============================================ */
.skills {
    background: var(--color-bg-secondary);
}

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

.skill-category {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--duration-normal) var(--ease-out);
}

.skill-category:hover {
    border-color: var(--color-border-hover);
}

.skill-cat-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    color: var(--color-accent);
    background: var(--color-accent-subtle);
    border-radius: var(--radius-md);
}

.skill-cat-icon svg {
    width: 22px;
    height: 22px;
}

.skill-cat-title {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
    line-height: 1.3;
}

.skill-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.skill-item {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.35rem 0.75rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    color: var(--color-text-secondary);
    transition: all var(--duration-fast);
}

.skill-item:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: var(--color-accent-subtle);
}

/* ============================================
   EDUCATION SECTION (HORIZONTAL FLOW)
   ============================================ */
.journey {
    background: var(--color-bg-primary);
}

.education-flow {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    position: relative;
    margin-top: var(--space-lg);
}

.edu-step-card {
    position: relative;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    transition: transform var(--duration-normal) var(--ease-out), border-color var(--duration-normal), box-shadow var(--duration-normal);
}

.edu-step-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}

.edu-step-highlight {
    background: linear-gradient(145deg, rgba(201, 168, 76, 0.08) 0%, var(--color-bg-card) 100%);
    border: 1px solid rgba(201, 168, 76, 0.4);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.edu-step-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.edu-step-number {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

.edu-step-highlight .edu-step-number {
    color: var(--color-accent);
}

.edu-level-badge {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    padding: 0.2rem 0.6rem;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 100px;
    border: 1px solid var(--color-border);
}

.edu-level-badge.level-highlight {
    color: var(--color-accent);
    background: var(--color-accent-subtle);
    border-color: var(--color-accent-dim);
}

.edu-school-title {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.2rem;
    line-height: 1.3;
}

.edu-location {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xs);
}

.edu-major {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 0.25rem;
}

.edu-gpa-badge {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--color-accent);
    background: rgba(201, 168, 76, 0.12);
    border: 1px solid rgba(201, 168, 76, 0.3);
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    margin-bottom: var(--space-xs);
    width: fit-content;
}

.edu-desc {
    font-size: 0.82rem;
    line-height: 1.55;
    color: var(--color-text-secondary);
    margin-top: 0.2rem;
}

/* Arrow connector pointing right */
.edu-arrow-connector {
    position: absolute;
    right: -16px;
    top: 45%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-accent-dim);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    z-index: 5;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);
}

.edu-arrow-connector svg {
    width: 13px;
    height: 13px;
}

@media (max-width: 1024px) {
    .education-flow {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-lg);
    }
    .edu-step-card:nth-child(2) .edu-arrow-connector {
        display: none;
    }
}

@media (max-width: 640px) {
    .education-flow {
        grid-template-columns: 1fr;
    }
    .edu-arrow-connector {
        display: none;
    }
}

/* ============================================
   ACHIEVEMENTS SECTION
   ============================================ */
.achievements {
    background: var(--color-bg-secondary);
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-2xl);
}

/* Achievements Grid Layout (3-Column Horizontal Flow) */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-lg);
    align-items: stretch;
}

.achievement-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform var(--duration-normal) var(--ease-out), border-color var(--duration-normal), box-shadow var(--duration-normal);
}

.achievement-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.achievement-highlight {
    background: linear-gradient(145deg, rgba(201, 168, 76, 0.08) 0%, var(--color-bg-card) 100%);
    border: 1px solid rgba(201, 168, 76, 0.35);
}

.achievement-badge-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.achievement-icon {
    width: 42px;
    height: 42px;
    background: var(--color-accent-subtle);
    border: 1px solid var(--color-accent-dim);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
}

.achievement-icon svg {
    width: 20px;
    height: 20px;
}

.achievement-year {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-accent);
}

.achievement-score-pill {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    background: rgba(201, 168, 76, 0.15);
    border: 1px solid var(--color-accent-dim);
    padding: 0.2rem 0.65rem;
    border-radius: 100px;
}

.achievement-type {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 0.35rem;
}

.achievement-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.25rem;
    line-height: 1.3;
}

.achievement-issuer {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.achievement-desc {
    font-size: 0.83rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

/* ============================================
   GALLERY SECTION (Campus Journey Slideshow)
   ============================================ */
.about {
    background: var(--color-bg-secondary);
}

.gallery-grid {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: var(--space-xl);
    align-items: center;
}

@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}

.gallery-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.gallery-lead {
    font-size: 1.02rem;
    line-height: 1.8;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.gallery-text p {
    font-size: 0.88rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.gallery-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: var(--space-sm);
}

.gallery-tag-pill {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    background: rgba(201, 168, 76, 0.1);
    border: 1px solid var(--color-accent-dim);
    padding: 0.3rem 0.85rem;
    border-radius: 100px;
}

/* Slideshow Container Card */
.gallery-slider-col {
    position: relative;
}

.gallery-slider-card {
    position: relative;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-hover);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.slider-viewport {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #0d111a;
}

.slider-track {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
    transform: scale(1.03);
}

.slide-item.active {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
}

.slide-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* Vignette Overlay & Caption */
.slide-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-xl) var(--space-lg) var(--space-lg);
    background: linear-gradient(to top, rgba(13, 17, 26, 0.95) 0%, rgba(13, 17, 26, 0.6) 60%, transparent 100%);
    color: var(--color-text-primary);
    transform: translateY(10px);
    transition: transform 0.5s var(--ease-out);
}

.slide-item.active .slide-caption {
    transform: translateY(0);
}

.slide-caption h4 {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 0.25rem;
}

.slide-caption p {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    line-height: 1.4;
}

/* Navigation Buttons */
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(13, 17, 26, 0.75);
    border: 1px solid rgba(201, 168, 76, 0.4);
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    backdrop-filter: blur(8px);
    transition: all var(--duration-fast) var(--ease-out);
    z-index: 10;
}

.slider-btn:hover {
    background: var(--color-accent);
    color: var(--color-bg-primary);
    border-color: var(--color-accent);
    box-shadow: 0 0 15px rgba(201, 168, 76, 0.4);
}

.slider-btn svg {
    width: 18px;
    height: 18px;
}

.btn-prev {
    left: 12px;
}

.btn-next {
    right: 12px;
}

/* Indicator Dots */
.slider-indicators {
    position: absolute;
    bottom: 14px;
    right: 16px;
    display: flex;
    gap: 6px;
    z-index: 10;
}

.slider-indicators .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
}

.slider-indicators .dot.active {
    width: 22px;
    border-radius: 10px;
    background: var(--color-accent);
}



/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    background: var(--color-bg-primary);
    padding-bottom: var(--space-2xl);
}

.contact-content {
    max-width: 100%;
}

.contact-headline {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 500;
    line-height: 1.15;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.contact-headline em {
    font-style: italic;
    color: var(--color-accent);
}

.contact-intro {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    max-width: 600px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    width: 100%;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-lg) var(--space-md);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--duration-normal) var(--ease-out);
    min-width: 0;
}

.contact-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-3px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.2);
}

.contact-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    color: var(--color-accent);
    background: var(--color-accent-subtle);
    border-radius: var(--radius-md);
}

.contact-icon svg {
    width: 22px;
    height: 22px;
}

.contact-label {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.contact-value {
    font-size: clamp(0.78rem, 1.05vw, 0.88rem);
    font-weight: 500;
    color: var(--color-text-primary);
    white-space: nowrap !important;
    word-break: normal !important;
    overflow-wrap: normal !important;
    overflow: hidden;
    text-overflow: ellipsis;
    width: 100%;
    transition: color var(--duration-fast);
}

.contact-card:hover .contact-value {
    color: var(--color-accent);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-primary);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.footer-logo {
    font-family: var(--font-sans);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.footer-tagline {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
}

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

@keyframes scrollLineMove {
    0% { left: -100%; }
    50% { left: 100%; }
    100% { left: 100%; }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .hero-portrait-col {
        order: 2;
    }

    .hero-text-col {
        order: 1;
    }

    .portrait-card {
        max-width: 320px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .case-content {
        grid-template-columns: 1fr;
    }

    .case-visual {
        height: 300px;
    }

    .leadership-grid {
        grid-template-columns: 1fr;
    }

    .leadership-highlight {
        grid-column: 1;
    }

    .skills-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --space-lg: 1.5rem;
        --space-xl: 3rem;
        --space-2xl: 4rem;
        --space-3xl: 5rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        flex-direction: column;
        align-items: flex-start;
        padding: 5rem var(--space-lg) var(--space-lg);
        background: var(--color-bg-tertiary);
        border-left: 1px solid var(--color-border);
        transition: right var(--duration-normal) var(--ease-out);
        gap: var(--space-md);
        z-index: 999;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        font-size: 1rem;
    }

    .name-first, .name-middle, .name-last {
        font-size: clamp(2.2rem, 10vw, 4rem) !important;
    }

    .tagline-pillars {
        flex-direction: column;
        align-items: flex-start;
    }

    .pillar-divider {
        display: none;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .project-featured {
        grid-column: 1;
        grid-template-columns: 1fr;
        padding: var(--space-xl);
    }

    .project-featured .project-number {
        font-size: 3rem;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .achievement-spotlight {
        flex-direction: column;
        text-align: center;
        align-items: center;
        padding: var(--space-xl);
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .case-header {
        padding: var(--space-md);
    }

    .case-info {
        padding: var(--space-lg);
    }
}

@media (max-width: 480px) {
    .about-stats {
        grid-template-columns: 1fr;
    }

    .section-headline {
        font-size: clamp(2rem, 8vw, 3rem);
    }

    .hero-actions {
        flex-direction: column;
    }

    .btn-primary, .btn-secondary {
        text-align: center;
        justify-content: center;
    }
}