/* ============================================
   GIANLUCA SESTITO PORTFOLIO
   Brutalist Luxury Aesthetic
   ============================================ */

/* CSS Custom Properties */
:root {
    /* Colors - Terminal Luxury Palette */
    --black: #000000;
    --black-soft: #0a0a0a;
    --black-card: #111111;
    --white: #ffffff;
    --white-dim: #e0e0e0;
    --white-muted: #888888;

    /* Accent Colors */
    --accent-primary: #39FF14; /* Terminal Green */
    --accent-secondary: #FF6B35; /* Coral */
    --accent-tertiary: #00D4FF; /* Cyan */

    /* Gradients */
    --gradient-accent: linear-gradient(135deg, var(--accent-primary), var(--accent-tertiary));
    --gradient-warm: linear-gradient(135deg, var(--accent-secondary), #FF006E);

    /* Glow Effects */
    --glow-green: 0 0 30px rgba(57, 255, 20, 0.3);
    --glow-green-strong: 0 0 50px rgba(57, 255, 20, 0.5);
    --glow-coral: 0 0 30px rgba(255, 107, 53, 0.3);

    /* Typography */
    --font-display: 'Bebas Neue', sans-serif;
    --font-body: 'JetBrains Mono', monospace;
    --font-accent: 'Playfair Display', serif;

    /* Spacing */
    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 48px;
    --space-xl: 80px;
    --space-2xl: 120px;

    /* Layout */
    --max-width: 1400px;
    --border-radius: 2px;
}

/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    scroll-snap-type: y mandatory;
    overflow-y: scroll;
    height: 100%;
}

body {
    font-family: var(--font-body);
    background: var(--black);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    height: 100%;
}

/* Grain Texture Overlay */
.grain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Cursor Glow */
.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(57, 255, 20, 0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: 1;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease;
    opacity: 0;
}

body:hover .cursor-glow {
    opacity: 1;
}

/* Selection */
::selection {
    background: var(--accent-primary);
    color: var(--black);
}

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

/* ============================================
   NAVIGATION
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) var(--space-lg);
    background: transparent;
    transition: background 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header.scrolled {
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

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

.nav-spacer {
    width: 3rem;
}

.nav-logo {
    font-family: var(--font-body);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
    letter-spacing: 2px;
    transition: color 0.3s ease;
}

.logo-bracket {
    color: var(--accent-primary);
    transition: text-shadow 0.3s ease;
}

.nav-logo:hover .logo-bracket {
    text-shadow: var(--glow-green);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
}

.nav-link {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--white-muted);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    transition: color 0.3s ease;
    position: relative;
}

.nav-index {
    font-size: 0.7rem;
    color: var(--accent-primary);
    opacity: 0.5;
    transition: opacity 0.3s ease;
}

.nav-link:hover {
    color: var(--white);
}

.nav-link:hover .nav-index {
    opacity: 1;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent-primary);
    transition: width 0.3s ease;
}

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

.nav-cta {
    color: var(--accent-primary);
}

/* Mobile Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle-line {
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:first-child {
    transform: translateY(4px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:last-child {
    transform: translateY(-4px) rotate(-45deg);
}

/* ============================================
   SECTION SNAP & FULL-SCREEN
   ============================================ */
main {
    scroll-snap-type: y mandatory;
    overflow-y: scroll;
    height: 100vh;
    padding-top: 80px; /* Space for fixed navbar */
}

section {
    min-height: calc(100vh - 80px);
    height: auto;
    scroll-snap-align: start;
    scroll-snap-stop: always;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
    overflow-y: visible;
}

/* Disable snap on mobile for better scrolling */
@media (max-width: 768px) {
    html {
        scroll-snap-type: none;
    }

    main {
        scroll-snap-type: none;
    }

    section {
        scroll-snap-align: none;
        min-height: auto;
    }
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    position: relative;
    padding: var(--space-lg);
    overflow: hidden;
    justify-content: center;
}

.hero-grid {
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 2;
}

/* Terminal Line */
.hero-intro {
    margin-bottom: var(--space-lg);
}

.terminal-line {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--white-muted);
}

.terminal-prompt {
    color: var(--accent-primary);
    text-shadow: var(--glow-green);
}

.terminal-command {
    position: relative;
}

.typed-text::after {
    content: '_';
    animation: blink 1s step-end infinite;
    color: var(--accent-primary);
}

@keyframes blink {
    50% { opacity: 0; }
}

/* Hero Name - Massive Display Type */
.hero-main {
    margin-bottom: var(--space-lg);
}

.hero-name {
    font-family: var(--font-display);
    font-size: clamp(4rem, 15vw, 12rem);
    font-weight: 400;
    line-height: 0.9;
    letter-spacing: -2px;
    text-transform: uppercase;
}

.name-line {
    display: block;
    opacity: 0;
    transform: translateY(100px);
    animation: slideUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.name-line:nth-child(2) {
    animation-delay: 0.15s;
}

.name-accent {
    color: transparent;
    -webkit-text-stroke: 2px var(--white);
    text-stroke: 2px var(--white);
    position: relative;
}

.name-accent::after {
    content: 'Sestito';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--accent-primary);
    -webkit-text-stroke: 0;
    text-stroke: 0;
    clip-path: inset(0 100% 0 0);
    animation: revealText 1.5s ease 1s forwards;
}

@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes revealText {
    to {
        clip-path: inset(0 0 0 0);
    }
}

/* Role Container */
.hero-role-container {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
}

.hero-role,
.hero-location {
    font-size: 0.9rem;
    display: flex;
    gap: var(--space-sm);
}

.role-label {
    color: var(--white-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.role-value {
    color: var(--white);
    font-weight: 500;
}

/* Statement */
.hero-statement {
    max-width: 600px;
    margin-bottom: var(--space-xl);
}

.statement-text {
    font-family: var(--font-body);
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--white-dim);
}

.statement-text em {
    font-family: var(--font-accent);
    font-style: italic;
    color: var(--accent-primary);
}

.statement-text strong {
    color: var(--white);
    font-weight: 600;
}

/* Hero Metrics */
.hero-metrics {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
    padding: var(--space-md) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.metric-block {
    text-align: left;
}

.metric-value {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    color: var(--accent-primary);
    display: block;
    line-height: 1;
    text-shadow: var(--glow-green);
}

.metric-label {
    font-size: 0.75rem;
    color: var(--white-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: var(--space-xs);
    display: block;
}

.metric-divider {
    width: 1px;
    height: 50px;
    background: linear-gradient(180deg, transparent, var(--white-muted), transparent);
}

/* Hero CTA */
.hero-cta {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--border-radius);
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    background: transparent;
    color: var(--accent-primary);
    box-shadow: var(--glow-green);
}

.btn-primary .btn-arrow {
    transition: transform 0.3s ease;
}

.btn-primary:hover .btn-arrow {
    transform: translateX(4px);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 1px solid var(--white-muted);
}

.btn-secondary:hover {
    border-color: var(--white);
    background: rgba(255, 255, 255, 0.05);
}

/* ============================================
   SECTION NAVIGATION ARROWS - RIGHT SIDE
   ============================================ */
.section-nav {
    position: fixed;
    right: var(--space-lg);
    width: 50px;
    height: 50px;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(57, 255, 20, 0.3);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--accent-primary);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 100;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.section-nav svg {
    width: 24px;
    height: 24px;
}

.section-nav:hover {
    background: rgba(57, 255, 20, 0.1);
    border-color: var(--accent-primary);
    box-shadow: var(--glow-green);
    transform: scale(1.15);
}

.section-nav-up {
    top: calc(var(--space-lg) + 50px);
    animation: float-up 2s ease-in-out infinite;
}

.section-nav-down {
    bottom: calc(var(--space-lg) + 40px);
    animation: float-down 2s ease-in-out infinite;
}

@keyframes float-up {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@keyframes float-down {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

/* ============================================
   SCROLL REVEAL EFFECTS
   ============================================ */
/* Elements start hidden and reveal on scroll */
section {
    opacity: 0;
    transition: opacity 0.6s ease;
}

section.section-active {
    opacity: 1;
}

/* Staggered reveal for section content */
.section-active .section-header {
    animation: slideInFromLeft 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.section-active .project-feature,
.section-active .experience-card,
.section-active .skill-block {
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.section-active .project-feature:nth-child(1) { animation-delay: 0.1s; }
.section-active .project-feature:nth-child(2) { animation-delay: 0.2s; }

.section-active .experience-card:nth-child(1) { animation-delay: 0.1s; }
.section-active .experience-card:nth-child(2) { animation-delay: 0.2s; }
.section-active .experience-card:nth-child(3) { animation-delay: 0.3s; }

.section-active .skill-block:nth-child(1) { animation-delay: 0.05s; }
.section-active .skill-block:nth-child(2) { animation-delay: 0.1s; }
.section-active .skill-block:nth-child(3) { animation-delay: 0.15s; }
.section-active .skill-block:nth-child(4) { animation-delay: 0.2s; }
.section-active .skill-block:nth-child(5) { animation-delay: 0.25s; }
.section-active .skill-block:nth-child(6) { animation-delay: 0.3s; }

.section-active .contact-link:nth-child(1) { animation-delay: 0.1s; }
.section-active .contact-link:nth-child(2) { animation-delay: 0.2s; }
.section-active .contact-link:nth-child(3) { animation-delay: 0.3s; }

@keyframes slideInFromLeft {
    from {
        opacity: 0;
        transform: translateX(-60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero section special reveal */
.hero.section-active .hero-intro { animation: fadeIn 0.6s ease forwards; }
.hero.section-active .hero-main { animation: fadeIn 0.8s ease 0.2s forwards; }
.hero.section-active .hero-role-container { animation: fadeIn 0.8s ease 0.4s forwards; }
.hero.section-active .hero-statement { animation: fadeIn 0.8s ease 0.6s forwards; }
.hero.section-active .hero-metrics { animation: fadeIn 0.8s ease 0.8s forwards; }
.hero.section-active .hero-cta { animation: fadeIn 0.8s ease 1s forwards; }

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Hero Background */
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.gradient-orb-1 {
    width: 600px;
    height: 600px;
    background: var(--accent-primary);
    top: -20%;
    right: -10%;
    opacity: 0.15;
}

.gradient-orb-2 {
    width: 400px;
    height: 400px;
    background: var(--accent-secondary);
    bottom: 10%;
    left: -5%;
    opacity: 0.1;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* ============================================
   SECTION HEADERS
   ============================================ */
.section-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    padding: 0 var(--space-lg);
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
}

.section-header-center {
    flex-direction: column;
    text-align: center;
    gap: var(--space-sm);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 4px;
    color: var(--white);
}

.section-title-large {
    font-size: clamp(2.5rem, 8vw, 5rem);
}

.section-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--white-muted), transparent);
}

/* ============================================
   WORK / PROJECTS SECTION
   ============================================ */
.work-section {
    padding: 40px var(--space-lg) var(--space-lg);
    background: var(--black-soft);
    overflow-y: hidden;
}

.projects-showcase {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-top: var(--space-md);
}

.project-feature {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--black-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius);
    position: relative;
    height: 100%;
}

.project-feature-alt {
    /* No special styling needed */
}

.project-number {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--accent-primary);
    line-height: 1;
    user-select: none;
}

.project-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.project-meta {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.project-tag {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent-primary);
    padding: var(--space-xs) var(--space-sm);
    border: 1px solid var(--accent-primary);
    border-radius: var(--border-radius);
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--space-sm);
}

.project-description {
    font-size: 0.85rem;
    color: var(--white-dim);
    line-height: 1.6;
    margin-bottom: var(--space-sm);
}

.project-stats {
    list-style: none;
    margin-bottom: var(--space-sm);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.project-stats li {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--white-muted);
    font-size: 0.75rem;
}

.project-stats li::before {
    content: '';
    width: 4px;
    height: 4px;
    background: var(--accent-primary);
    border-radius: 50%;
}

.stat-value {
    font-family: var(--font-body);
    font-weight: 600;
    color: var(--accent-secondary);
}

.project-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: var(--space-sm);
}

.project-stack span {
    font-size: 0.65rem;
    color: var(--white-muted);
    padding: 2px 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.project-stack span:hover {
    background: rgba(57, 255, 20, 0.1);
    color: var(--accent-primary);
}

.project-link {
    font-size: 0.85rem;
    color: var(--white);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}

.project-link:hover {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
}

.link-arrow {
    transition: transform 0.3s ease;
}

.project-link:hover .link-arrow {
    transform: translate(4px, -4px);
}

/* Project Visual - Hidden for compact layout */
.project-visual {
    display: none;
}

.visual-frame {
    background: var(--black-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: var(--space-md);
    position: relative;
    overflow: hidden;
}

.visual-frame::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 30px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    padding-left: var(--space-sm);
}

.visual-frame::after {
    content: '● ● ●';
    position: absolute;
    top: 8px;
    left: var(--space-sm);
    font-size: 8px;
    color: var(--white-muted);
    letter-spacing: 4px;
}

/* Code Preview */
.code-preview {
    padding-top: var(--space-md);
}

.code-preview pre {
    font-family: var(--font-body);
    font-size: 0.8rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-preview code {
    color: var(--white-dim);
}

.code-comment {
    color: var(--white-muted);
}

.code-keyword {
    color: var(--accent-secondary);
}

.code-method {
    color: var(--accent-tertiary);
}

.code-string {
    color: var(--accent-primary);
}

/* Architecture Diagram */
.architecture-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-xl) var(--space-md);
    flex-wrap: wrap;
    position: relative;
}

.arch-node {
    padding: var(--space-sm) var(--space-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.arch-order {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.arch-kafka {
    border-color: var(--accent-secondary);
    color: var(--accent-secondary);
}

.arch-inventory {
    border-color: var(--accent-tertiary);
    color: var(--accent-tertiary);
}

.arch-arrow {
    color: var(--white-muted);
    font-size: 1.2rem;
}

.arch-flow-back {
    position: absolute;
    bottom: var(--space-sm);
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.7rem;
    color: var(--white-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.5;
}

.arch-flow-back::before,
.arch-flow-back::after {
    content: '←';
    margin: 0 var(--space-sm);
}

/* ============================================
   EXPERIENCE SECTION
   ============================================ */
.experience-section {
    padding: 40px var(--space-lg) var(--space-lg);
    background: var(--black);
    overflow-y: hidden;
}

.experience-timeline {
    max-width: var(--max-width);
    margin: var(--space-md) auto 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.experience-card {
    background: var(--black-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius);
    padding: var(--space-md);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.experience-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, var(--accent-primary), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.experience-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateX(8px);
}

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

.experience-current {
    border-color: var(--accent-primary);
    background: linear-gradient(135deg, rgba(57, 255, 20, 0.05), transparent);
}

.experience-current::before {
    opacity: 1;
}

.exp-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-sm);
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.exp-company {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.exp-company h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.exp-badge {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--black);
    background: var(--accent-primary);
    padding: 4px 10px;
    border-radius: var(--border-radius);
}

.exp-period {
    font-size: 0.85rem;
    color: var(--white-muted);
    font-family: var(--font-body);
}

.exp-role {
    font-size: 0.9rem;
    color: var(--accent-secondary);
    margin-bottom: var(--space-md);
    font-weight: 500;
}

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

.highlight-item {
    padding-left: var(--space-md);
    border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.highlight-item h4 {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--white);
}

.highlight-item p {
    font-size: 0.75rem;
    color: var(--white-muted);
    line-height: 1.5;
}

.highlight-metrics {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
    flex-wrap: wrap;
}

.highlight-metrics span {
    font-size: 0.7rem;
    color: var(--accent-primary);
    padding: 4px 10px;
    border: 1px solid rgba(57, 255, 20, 0.3);
    border-radius: var(--border-radius);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ============================================
   SKILLS SECTION
   ============================================ */
.skills-section {
    padding: 40px var(--space-lg) var(--space-lg);
    background: linear-gradient(180deg, var(--black) 0%, var(--black-soft) 100%);
    overflow-y: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.skills-grid {
    max-width: var(--max-width);
    margin: var(--space-md) auto 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
}

.skill-block {
    background: var(--black-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius);
    padding: var(--space-sm);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.skill-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(57, 255, 20, 0.1), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.skill-block:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
}

.skill-block:hover::before {
    opacity: 1;
}

.skill-primary {
    grid-column: span 1;
    border-color: rgba(57, 255, 20, 0.3);
}

.skill-primary::before {
    opacity: 0.3;
}

.skill-small {
    grid-column: span 1;
}

.skill-icon {
    width: 30px;
    height: 30px;
    margin-bottom: var(--space-sm);
    color: var(--accent-primary);
}

.skill-icon svg {
    width: 100%;
    height: 100%;
}

.skill-block h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 4px;
}

.skill-primary h3 {
    font-size: 1rem;
}

.skill-block p {
    font-size: 0.7rem;
    color: var(--white-muted);
    line-height: 1.4;
}

.skill-description {
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.5;
    margin-top: var(--space-xs);
    font-style: italic;
}

.skill-level {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-primary);
    padding: 2px 8px;
    border: 1px solid var(--accent-primary);
    border-radius: var(--border-radius);
}

/* Languages Strip */
.languages-strip {
    max-width: var(--max-width);
    margin: var(--space-md) auto 0;
    padding: var(--space-sm) 0;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.lang-label {
    font-size: 0.7rem;
    color: var(--white-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.lang-list {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.lang-item {
    font-size: 0.75rem;
    color: var(--white);
}

.lang-item em {
    font-family: var(--font-accent);
    font-style: italic;
    color: var(--white-muted);
    font-size: 0.7rem;
    margin-left: 4px;
}

.lang-native em {
    color: var(--accent-primary);
}

.lang-learning em {
    color: var(--accent-secondary);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-section {
    padding: 40px var(--space-lg) var(--space-lg);
    background: var(--black);
    position: relative;
    overflow: hidden;
}

.contact-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0;
    text-align: center;
    position: relative;
    z-index: 2;
}

.contact-intro {
    font-size: 0.95rem;
    color: var(--white-muted);
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

.contact-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
    max-width: var(--max-width);
    margin: 0 auto;
}

.contact-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--black-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.contact-link:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
    background: rgba(57, 255, 20, 0.05);
}

.contact-link-primary {
    border-color: rgba(255, 255, 255, 0.08);
    background: var(--black-card);
}

.contact-icon {
    font-family: var(--font-body);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-primary);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--accent-primary);
    border-radius: var(--border-radius);
    flex-shrink: 0;
}

.contact-text {
    text-align: center;
}

.contact-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--white-muted);
    display: block;
    margin-bottom: 4px;
}

.contact-value {
    font-size: 0.85rem;
    color: var(--white);
}

.contact-arrow {
    font-size: 1.2rem;
    color: var(--white-muted);
    transition: all 0.3s ease;
    margin-top: auto;
}

.contact-link:hover .contact-arrow {
    color: var(--accent-primary);
    transform: translateY(-4px);
}

/* Contact Decoration */
.contact-decoration {
    position: absolute;
    bottom: var(--space-xl);
    left: 0;
    width: 100%;
    overflow: hidden;
    opacity: 0.03;
    pointer-events: none;
}

.decoration-text {
    font-family: var(--font-display);
    font-size: clamp(4rem, 15vw, 12rem);
    text-transform: uppercase;
    white-space: nowrap;
    animation: marquee 20s linear infinite;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    padding: var(--space-xl) 0 var(--space-md);
    background: transparent;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: var(--space-xl);
    position: relative;
    z-index: 3;
}

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

.footer-copyright,
.footer-built {
    font-size: 0.75rem;
    color: var(--white-muted);
    opacity: 0.7;
}

@media (max-width: 768px) {
    .site-footer {
        padding: var(--space-lg) 0 var(--space-md);
        margin-top: var(--space-lg);
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        padding: 0 var(--space-md);
    }
}

/* ============================================
   FOCUS STATES
   ============================================ */
*:focus {
    outline: none;
}

*:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 4px;
}

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

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

    .experience-timeline {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-links {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .section-nav {
        width: 45px;
        height: 45px;
    }

    .hero {
        min-height: calc(100vh - 80px);
    }
}

@media (max-width: 768px) {
    :root {
        --space-lg: 24px;
        --space-xl: 48px;
        --space-2xl: 64px;
    }

    main {
        padding-top: 70px;
    }

    section {
        min-height: calc(100vh - 70px);
        padding-top: var(--space-lg);
        padding-bottom: var(--space-lg);
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(0, 0, 0, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 0 var(--space-lg);
        gap: var(--space-md);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease, padding 0.3s ease;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-menu.open {
        max-height: 400px;
        padding: var(--space-lg);
    }

    .hero {
        padding: var(--space-lg) var(--space-md);
        align-items: flex-start;
        padding-top: var(--space-xl);
    }

    .work-section,
    .experience-section,
    .skills-section,
    .contact-section {
        padding: var(--space-lg) var(--space-md);
    }

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

    .skill-block {
        padding: var(--space-xs);
    }

    .skill-description {
        display: none;
    }

    .skill-icon {
        width: 28px;
        height: 28px;
        margin-bottom: var(--space-xs);
    }

    .skill-block h3 {
        font-size: 0.85rem;
        margin-bottom: 2px;
    }

    .skill-block p {
        font-size: 0.65rem;
    }

    .hero-metrics {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-md);
    }

    .metric-divider {
        width: 40px;
        height: 1px;
    }

    .section-nav {
        width: 40px;
        height: 40px;
        right: var(--space-md);
    }

    .section-nav svg {
        width: 20px;
        height: 20px;
    }

    .section-nav-up {
        top: calc(var(--space-md) + 50px);
    }

    .section-nav-down {
        bottom: calc(var(--space-md) + 40px);
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }

    .section-line {
        width: 60px;
    }

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

    .project-visual {
        display: none;
    }

    .skill-primary,
    .skill-small {
        grid-column: span 1;
    }

    .languages-strip {
        flex-direction: column;
        align-items: flex-start;
    }

    .hero-main {
        font-size: clamp(2.5rem, 10vw, 4rem);
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }

    .contact-content {
        padding: 0 var(--space-md);
    }

    .contact-link {
        padding: var(--space-md);
    }
}

@media (max-width: 480px) {
    :root {
        --space-lg: 20px;
        --space-xl: 40px;
    }

    main {
        padding-top: 60px;
    }

    section {
        min-height: calc(100vh - 60px);
        padding-top: var(--space-md);
        padding-bottom: var(--space-md);
    }

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

    .section-title {
        font-size: clamp(1.5rem, 6vw, 2.5rem);
    }

    .exp-company h3 {
        font-size: 1.2rem;
    }

    .section-nav {
        width: 36px;
        height: 36px;
        right: var(--space-sm);
    }

    .section-nav svg {
        width: 18px;
        height: 18px;
    }

    .section-nav-up {
        top: calc(var(--space-sm) + 60px);
    }

    .section-nav-down {
        bottom: calc(var(--space-sm) + 50px);
    }

    .contact-icon {
        display: none;
    }
}

/* ============================================
   REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .fade-in {
        opacity: 1;
        transform: none;
    }

    .name-line {
        opacity: 1;
        transform: none;
    }

    .name-accent::after {
        clip-path: inset(0 0 0 0);
    }
}