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

:root {
    --bg: #06060b;
    --bg-elevated: #0c0c14;
    --surface: #12121e;
    --border: #1a1a2e;
    --text-primary: #e8e8ef;
    --text-secondary: #7a7a8e;
    --text-muted: #4a4a5e;
    --accent: #00c8ff;
    --accent-dim: rgba(0, 200, 255, 0.08);
    --accent-glow: rgba(0, 200, 255, 0.15);
    --font-display: 'Chakra Petch', sans-serif;
    --font-body: 'DM Sans', sans-serif;
}

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--border) var(--bg);
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ── Network Canvas ── */
#network-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ── Navigation ── */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1.5rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(20px);
    background: rgba(6, 6, 11, 0.6);
    border-bottom: 1px solid rgba(26, 26, 46, 0.5);
    transition: all 0.4s ease;
}

nav.scrolled {
    padding: 1rem 3rem;
    background: rgba(6, 6, 11, 0.85);
}

.nav-logo {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: 0.15em;
    color: var(--text-primary);
    text-transform: uppercase;
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    position: relative;
}

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

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

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

/* ── Language Toggle ── */
.lang-toggle {
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--border);
    border-radius: 100px;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.lang-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.lang-toggle .lang-active {
    color: var(--accent);
}

/* ── Hero Section ── */
.hero {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 2rem 2rem 0;
    overflow: hidden;
}

.hero-bg-title {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(6rem, 15vw, 16rem);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: transparent;
    -webkit-text-stroke: 1.5px rgba(255, 255, 255, 0.12);
    opacity: 0.8;
    user-select: none;
    white-space: nowrap;
    z-index: 0;
    animation: fadeInScale 1.2s ease-out both;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.95);
    }
    to {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(1);
    }
}

.hero-portrait {
    position: absolute;
    bottom: 0;
    z-index: 2;
    width: clamp(300px, 38vw, 520px);
    height: clamp(400px, 55vh, 650px);
    overflow: hidden;
    animation: portraitIn 1.2s ease-out 0.3s both;
    background: transparent;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    -webkit-mask-image: linear-gradient(to top, rgba(0,0,0,0.7) 0%, rgba(0,0,0,1) 15%, rgba(0,0,0,1) 85%, rgba(0,0,0,0) 100%);
    mask-image: linear-gradient(to top, rgba(0,0,0,0.7) 0%, rgba(0,0,0,1) 15%, rgba(0,0,0,1) 85%, rgba(0,0,0,0) 100%);
}

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

.hero-portrait .placeholder-icon {
    font-size: 6rem;
    color: var(--text-muted);
    margin-bottom: 30%;
}

@keyframes portraitIn {
    from {
        opacity: 0;
        transform: translateY(60px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    margin-top: clamp(6rem, 12vh, 10rem);
    animation: contentIn 1s ease-out 0.6s both;
}

@keyframes contentIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-name {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(1.8rem, 4vw, 3.2rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(0.8rem, 1.5vw, 1rem);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.5rem;
}

.hero-description {
    max-width: 500px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 300;
    line-height: 1.8;
}

.scroll-indicator {
    position: absolute;
    bottom: 2.5rem;
    z-index: 4;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: contentIn 1s ease-out 1s both;
}

.scroll-indicator span {
    font-family: var(--font-display);
    font-size: 0.6rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ── Sections ── */
section {
    position: relative;
    z-index: 1;
    padding: 8rem 3rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

section.hero {
    padding: 2rem 2rem 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

section.contact-section {
    min-height: auto;
    display: block;
}

.section-container {
    max-width: 1100px;
    margin: 0 auto;
    width: 100%;
}

.section-label {
    font-family: var(--font-display);
    font-size: 0.65rem;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.section-label::before {
    content: '';
    width: 30px;
    height: 1px;
    background: var(--accent);
}

.section-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    letter-spacing: 0.03em;
    margin-bottom: 3rem;
}

/* ── About ── */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    color: var(--text-secondary);
    font-weight: 300;
    line-height: 1.9;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.info-list {
    list-style: none;
    margin-bottom: 1.5rem;
}

.info-list li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 0.4rem 0;
    display: flex;
    gap: 0.5rem;
}

.info-list li strong {
    color: var(--text-primary);
    font-weight: 500;
    min-width: 110px;
}

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

.stat-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.stat-card:hover {
    border-color: rgba(0, 200, 255, 0.2);
    box-shadow: 0 4px 30px rgba(0, 200, 255, 0.05);
    transform: translateY(-2px);
}

.stat-number {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 2rem;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 0.3rem;
}

.stat-number span {
    color: var(--accent);
}

.stat-label {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    font-family: var(--font-display);
}

/* ── Skills ── */
.skills-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 2rem;
}

.skill-tag {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    padding: 0.6rem 1.2rem;
    border: 1px solid var(--border);
    border-radius: 100px;
    color: var(--text-secondary);
    background: var(--bg-elevated);
    transition: all 0.3s ease;
    cursor: default;
}

.skill-tag:hover {
    color: var(--accent);
    border-color: rgba(0, 200, 255, 0.3);
    background: var(--accent-dim);
}

/* ── Portfolio Filters ── */
.portfolio-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 2.5rem;
}

.portfolio-filters button {
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 0.55rem 1.2rem;
    border: 1px solid var(--border);
    border-radius: 100px;
    color: var(--text-muted);
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
}

.portfolio-filters button:hover {
    color: var(--text-secondary);
    border-color: var(--text-muted);
}

.portfolio-filters button.active {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-dim);
}

/* ── Project Cards ── */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.project-card:hover {
    border-color: rgba(0, 200, 255, 0.15);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

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

.project-card.hidden {
    display: none;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.2rem;
}

.project-number {
    font-family: var(--font-display);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    color: var(--text-muted);
}

.project-badge {
    font-family: var(--font-display);
    font-size: 0.55rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 0.3rem 0.7rem;
    border-radius: 100px;
    font-weight: 500;
}

.badge-administrer {
    color: #00d4ff;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.badge-connecter {
    color: #7c4dff;
    background: rgba(124, 77, 255, 0.1);
    border: 1px solid rgba(124, 77, 255, 0.2);
}

.badge-programmer {
    color: #00e676;
    background: rgba(0, 230, 118, 0.1);
    border: 1px solid rgba(0, 230, 118, 0.2);
}

.project-name {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.2rem;
    letter-spacing: 0.03em;
    margin-bottom: 0.8rem;
}

.project-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 300;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

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

.project-stack span {
    font-family: var(--font-display);
    font-size: 0.6rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 0.35rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-muted);
}

/* ── CV Timeline ── */
.cv-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.cv-column h3 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.5rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid var(--border);
}

.cv-item {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 2rem;
    border-left: 1px solid var(--border);
}

.cv-item::before {
    content: '';
    position: absolute;
    left: -4px;
    top: 6px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
}

.cv-item h4 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.3rem;
}

.cv-item .cv-date {
    font-family: var(--font-display);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.3rem;
}

.cv-item .cv-place {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: 0.5rem;
}

.cv-item p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 300;
    line-height: 1.7;
}

.cv-item ul {
    list-style: none;
    margin-top: 0.5rem;
}

.cv-item ul li {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 300;
    padding: 0.2rem 0;
    padding-left: 1rem;
    position: relative;
}

.cv-item ul li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-family: var(--font-display);
    font-size: 0.7rem;
}

/* ── Modal ── */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(6, 6, 11, 0.85);
    backdrop-filter: blur(10px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 20px;
    max-width: 650px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    padding: 2.5rem;
    position: relative;
    transform: translateY(20px) scale(0.97);
    transition: transform 0.3s ease;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

.modal-overlay.active .modal-content {
    transform: translateY(0) scale(1);
}

.modal-close {
    position: absolute;
    top: 1.2rem;
    right: 1.2rem;
    width: 32px;
    height: 32px;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: transparent;
    color: var(--text-muted);
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.modal-close:hover {
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

.modal-badge {
    display: inline-block;
    margin-bottom: 1rem;
}

.modal-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.4rem;
    letter-spacing: 0.03em;
    margin-bottom: 1.2rem;
}

.modal-body p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 300;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.modal-body strong {
    color: var(--text-primary);
    font-weight: 500;
}

.modal-footer {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.modal-btn {
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 0.7rem 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.modal-btn.primary {
    background: var(--accent-dim);
    border-color: rgba(0, 200, 255, 0.3);
    color: var(--accent);
}

.modal-btn.primary:hover {
    background: rgba(0, 200, 255, 0.15);
}

/* ── Contact ── */
.contact-section {
    text-align: center;
    padding-bottom: 6rem;
}

.contact-section .section-label {
    justify-content: center;
}

.contact-section .section-label::before {
    display: none;
}

.contact-email {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(1.2rem, 3vw, 2rem);
    letter-spacing: 0.05em;
    color: var(--text-primary);
    text-decoration: none;
    position: relative;
    display: inline-block;
    margin-top: 1rem;
    transition: color 0.3s ease;
}

.contact-email::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s ease;
}

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

.contact-email:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 3rem;
}

.contact-links a {
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-links a:hover {
    color: var(--accent);
}

/* ── Active Nav Link ── */
.nav-links a.active {
    color: var(--accent);
}

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

/* ── Back to Top ── */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 99;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--bg-elevated);
    color: var(--text-muted);
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
    transition: all 0.3s ease;
    text-decoration: none;
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

.back-to-top:hover {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 15px rgba(0, 200, 255, 0.1);
}

/* ── Parallax ── */
.parallax-section .section-container {
    will-change: transform;
}

/* ── Footer ── */
footer {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--border);
}

footer p {
    font-family: var(--font-display);
    font-size: 0.6rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--text-muted);
}

/* ── Scroll Reveal ── */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ── Mobile ── */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 101;
}

.mobile-toggle span {
    width: 22px;
    height: 1.5px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    nav {
        padding: 1.2rem 1.5rem;
    }

    .mobile-toggle {
        display: flex;
    }

    .nav-right {
        gap: 1rem;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: var(--bg-elevated);
        border-left: 1px solid var(--border);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        transition: right 0.4s ease;
    }

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

    section {
        padding: 5rem 1.5rem;
        min-height: auto;
    }

    section.hero {
        min-height: 100vh;
    }

    .hero-portrait {
        width: clamp(250px, 70vw, 350px);
        height: clamp(300px, 50vh, 450px);
    }

    .hero-bg-title {
        font-size: clamp(4rem, 20vw, 8rem);
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .cv-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

    .portfolio-filters {
        gap: 0.4rem;
    }

    .portfolio-filters button {
        font-size: 0.6rem;
        padding: 0.45rem 0.9rem;
    }

}