/* ============================================================
   QA COMMAND DECK — FUTURISTIC PORTFOLIO STYLES
   ============================================================ */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;700&family=Outfit:wght@300;600;800&family=Inter:wght@300;400;500&display=swap');

/* --- CSS Variables / Design Tokens --- */
:root {
    --bg-deep: #050508;
    --bg-surface: #0a0a12;
    --bg-module: rgba(12, 12, 22, 0.85);
    --border-dim: rgba(0, 243, 255, 0.12);
    --border-bright: rgba(0, 243, 255, 0.6);
    --accent-cyan: #00f3ff;
    --accent-purple: #7000ff;
    --accent-magenta: #ff00aa;
    --accent-glow: rgba(0, 243, 255, 0.15);
    --text-primary: #e8f0fe;
    --text-secondary: #8899aa;
    --text-mono: #00f3ff;
    --font-mono: 'JetBrains Mono', monospace;
    --font-display: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --radius-sm: 2px;
    --radius-md: 4px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --nav-h: 64px;
}

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

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

body {
    background-color: var(--bg-deep);
    color: var(--text-primary);
    font-family: var(--font-body);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.7;
}

/* remove default link styles */
a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

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

/* ============================================================
   BACKGROUND UNIVERSE
   ============================================================ */
.bg-universe {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

/* Matrix Rain Canvas */
#cyber-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.85;
    /* slight transparency so glow orbs show through */
}

/* Nebula orbs */
.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.22;
    animation: orb-drift 20s ease-in-out infinite alternate;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--accent-purple);
    top: -150px;
    left: -100px;
    animation-duration: 22s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--accent-cyan);
    bottom: -100px;
    right: -80px;
    animation-duration: 28s;
}

.orb-3 {
    width: 350px;
    height: 350px;
    background: var(--accent-magenta);
    top: 40%;
    left: 40%;
    animation-duration: 18s;
}

@keyframes orb-drift {
    0% {
        transform: translate(0, 0) scale(1);
    }

    100% {
        transform: translate(40px, 30px) scale(1.07);
    }
}

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-deep);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-cyan);
    border-radius: 3px;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-h);
    z-index: 1000;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(5, 5, 8, 0.7);
    border-bottom: 1px solid var(--border-dim);
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--accent-cyan);
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.logo::before {
    content: '[ ';
    opacity: 0.5;
}

.logo::after {
    content: ' ]';
    opacity: 0.5;
}

.logo span {
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-secondary);
    position: relative;
    transition: color var(--transition);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--accent-cyan);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent-cyan);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    transform: scaleX(1);
}

/* Language button */
.lang-toggle {
    margin-left: 1rem;
}

#langBtn {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    background: transparent;
    border: 1px solid var(--border-dim);
    color: var(--text-secondary);
    padding: 0.35rem 0.8rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: border-color var(--transition), color var(--transition), background var(--transition);
    display: flex;
    gap: 0.4rem;
    align-items: center;
}

#langBtn:hover {
    border-color: var(--border-bright);
    background: var(--accent-glow);
    color: var(--accent-cyan);
}

.lang-en,
.lang-de {
    transition: color var(--transition);
}

.lang-en.active,
.lang-de.active {
    color: var(--accent-cyan);
}

.lang-separator {
    opacity: 0.4;
}

.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--accent-cyan);
    font-size: 1.8rem;
    cursor: pointer;
    z-index: 1001;
    transition: color var(--transition);
}

.mobile-menu-btn:hover {
    color: var(--border-bright);
}

.mobile-overlay {
    position: fixed;
    inset: 0;
    background: rgba(5, 5, 8, 0.8);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
}

.mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ============================================================
   LAYOUT WRAPPER
   ============================================================ */
main {
    position: relative;
    z-index: 1;
    padding-top: var(--nav-h);
}

.section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 7rem 2rem;
}

/* ============================================================
   SECTION HEADER (Shared)
   ============================================================ */
.section-header {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 4rem;
}

.section-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--accent-cyan);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

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

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 800;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1.1;
}

/* ============================================================
   MODULE CARD (Core UI Component)
   ============================================================ */
.module {
    background: var(--bg-module);
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-md);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: relative;
    transition: border-color var(--transition), transform var(--transition);
    overflow: hidden;
}

.module::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
            rgba(0, 243, 255, 0.06) 0%,
            transparent 60%);
    pointer-events: none;
    transition: opacity var(--transition);
    opacity: 0;
}

.module:hover::before {
    opacity: 1;
}

.module:hover {
    border-color: var(--border-bright);
    transform: translateY(-2px);
}

/* Module Header Strip */
.module-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 1.2rem;
    background: rgba(0, 243, 255, 0.04);
    border-bottom: 1px solid var(--border-dim);
}

.module-header-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--text-mono);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.module-status-dots {
    display: flex;
    gap: 6px;
    align-items: center;
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
}

.dot-green {
    background: #00ff88;
    box-shadow: 0 0 6px #00ff88;
    animation: pulse-dot 2s ease-in-out infinite;
}

.dot-yellow {
    background: #ffcc00;
    box-shadow: 0 0 6px #ffcc00;
}

.dot-red {
    background: #ff4466;
    box-shadow: 0 0 6px #ff4466;
}

@keyframes pulse-dot {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.4;
    }
}

.module-body {
    padding: 1.8rem;
}

/* Corner accent helper */
.module::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 24px;
    height: 24px;
    border-top: 2px solid var(--accent-cyan);
    border-right: 2px solid var(--accent-cyan);
    opacity: 0.4;
    pointer-events: none;
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero-section {
    min-height: 100svh;
    display: flex;
    align-items: center;
    padding: 0 2rem;
    max-width: 1200px;
    margin: 0 auto;
    gap: 4rem;
    position: relative;
    z-index: 1;
}

.hero-left {
    flex: 1 1 55%;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.hero-system-id {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-cyan);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.hero-system-id::before {
    content: '>> ';
    opacity: 0.6;
}

.hero-name {
    font-family: var(--font-display);
    font-size: clamp(2.8rem, 6vw, 5.5rem);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    background: linear-gradient(135deg, #ffffff 30%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-role {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
}

.hero-role span {
    color: var(--accent-cyan);
}

.hero-divider {
    width: 60px;
    height: 1px;
    background: linear-gradient(90deg, var(--accent-cyan), transparent);
}

.hero-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 480px;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    gap: 2.5rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent-cyan);
    line-height: 1;
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    color: var(--text-secondary);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

/* ---- Buttons ---- */
.btn {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.75rem 1.8rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition);
    border: none;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--accent-cyan);
    color: #000;
}

.btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: opacity var(--transition);
}

.btn-primary:hover {
    box-shadow: 0 0 25px rgba(0, 243, 255, 0.4), 0 0 5px rgba(0, 243, 255, 0.2) inset;
    transform: translateY(-2px);
}

.btn-primary:hover::after {
    opacity: 1;
}

.btn-secondary {
    background: transparent;
    color: var(--accent-cyan);
    border: 1px solid var(--border-bright);
}

.btn-secondary:hover {
    background: var(--accent-glow);
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(0, 243, 255, 0.1);
}

/* ---- Hero Profile ---- */
.hero-right {
    flex: 0 0 340px;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    align-items: center;
}

.profile-frame {
    position: relative;
    width: 280px;
    height: 280px;
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
    display: block;
    filter: grayscale(20%) contrast(1.05);
}

.profile-frame::before,
.profile-frame::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 24px;
}

.profile-frame::before {
    top: -4px;
    left: -4px;
    border-top: 2px solid var(--accent-cyan);
    border-left: 2px solid var(--accent-cyan);
}

.profile-frame::after {
    bottom: -4px;
    right: -4px;
    border-bottom: 2px solid var(--accent-cyan);
    border-right: 2px solid var(--accent-cyan);
}

.profile-scanline {
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(0, 243, 255, 0.6), transparent);
    animation: profile-scan 3s ease-in-out infinite;
    pointer-events: none;
}

@keyframes profile-scan {
    0% {
        top: 0%;
        opacity: 1;
    }

    100% {
        top: 100%;
        opacity: 0;
    }
}

.profile-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.profile-tag {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent-cyan);
    border: 1px solid var(--border-dim);
    padding: 0.3rem 0.75rem;
    border-radius: var(--radius-sm);
    background: rgba(0, 243, 255, 0.05);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about-section {
    position: relative;
    z-index: 1;
}

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

.about-main {
    grid-column: 1 / -1;
}

.about-text p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.85;
}

.about-meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.about-meta-item {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    padding: 1rem 1.2rem;
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-md);
    background: rgba(0, 243, 255, 0.02);
}

.about-meta-item i {
    font-size: 1.1rem;
    color: var(--accent-cyan);
    margin-top: 2px;
    flex-shrink: 0;
}

.about-meta-item h4 {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    color: var(--text-secondary);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.about-meta-item p {
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* ============================================================
   SKILLS SECTION
   ============================================================ */
.skills-section {
    position: relative;
    z-index: 1;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.2rem;
}

.skill-module {}

.skill-icon {
    font-size: 1.3rem;
    color: var(--accent-cyan);
    margin-bottom: 0.8rem;
}

.skill-module h3 {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

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

.skill-tag {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: rgba(0, 243, 255, 0.04);
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-sm);
    padding: 0.28rem 0.65rem;
    transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.skill-tag:hover {
    color: var(--accent-cyan);
    border-color: var(--border-bright);
    background: var(--accent-glow);
}

.skill-module.wide {
    grid-column: span 2;
}

/* ============================================================
   EXPERIENCE SECTION
   ============================================================ */
.experience-section {
    position: relative;
    z-index: 1;
}

.timeline {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    position: relative;
}

.timeline-item {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 2rem;
    align-items: start;
}

.timeline-left {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    padding-top: 1.8rem;
    gap: 0.6rem;
}

.timeline-date-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-secondary);
    letter-spacing: 0.1em;
    text-align: right;
    line-height: 1.5;
}

.timeline-date-label span {
    display: block;
    color: var(--accent-cyan);
}

.timeline-connector {
    width: 1px;
    background: linear-gradient(180deg, var(--accent-cyan) 0%, transparent 100%);
    height: 40px;
    margin-left: auto;
}

.timeline-module {
    flex: 1;
}

.timeline-module .module-body {
    padding: 1.5rem 1.8rem;
}

.timeline-role {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.25rem;
}

.timeline-company {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-cyan);
    letter-spacing: 0.1em;
    margin-bottom: 1.2rem;
}

.timeline-details {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.timeline-details li {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
    padding-left: 1.2em;
    position: relative;
}

.timeline-details li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--accent-cyan);
    font-size: 1rem;
}

/* ============================================================
   EDUCATION SECTION
   ============================================================ */
.education-section {
    position: relative;
    z-index: 1;
}

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

.edu-module .module-body {
    display: flex;
    gap: 1.2rem;
    align-items: flex-start;
}

.edu-icon-wrap {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-md);
    background: rgba(0, 243, 255, 0.05);
    color: var(--accent-cyan);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.edu-content h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

.edu-content h4 {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--accent-cyan);
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.edu-date {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-secondary);
    letter-spacing: 0.08em;
    margin-bottom: 0.7rem;
    display: block;
}

.edu-content p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.edu-thesis-label {
    font-weight: 700;
    color: var(--text-primary);
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact-section {
    position: relative;
    z-index: 1;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: start;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    padding: 0.5rem 0;
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-icon {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-md);
    background: rgba(0, 243, 255, 0.04);
    color: var(--accent-cyan);
    font-size: 1rem;
    flex-shrink: 0;
    transition: border-color var(--transition), background var(--transition);
}

.contact-info-item:hover .contact-icon {
    border-color: var(--border-bright);
    background: var(--accent-glow);
}

.contact-detail h4 {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    color: var(--text-secondary);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 0.2rem;
}

.contact-detail a,
.contact-detail p {
    font-size: 0.9rem;
    color: var(--text-primary);
    transition: color var(--transition);
}

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

.contact-cta .module-body {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: flex-start;
}

.contact-cta p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.contact-ref {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-sm);
    background: rgba(0, 243, 255, 0.02);
    margin-top: 0.5rem;
}

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

.footer-content {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-secondary);
    letter-spacing: 0.1em;
    display: flex;
    gap: 2rem;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.footer-content a {
    color: var(--accent-cyan);
    transition: opacity var(--transition);
}

.footer-content a:hover {
    opacity: 0.7;
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .skill-module.wide {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .hero-section {
        flex-direction: column-reverse;
        padding-top: calc(var(--nav-h) + 2rem);
        min-height: auto;
        padding-bottom: 4rem;
        text-align: center;
        gap: 2.5rem;
    }

    .hero-left {
        align-items: center;
    }

    .hero-desc {
        text-align: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-right {
        align-items: center;
    }

    .hero-system-id::before {
        display: none;
    }

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

    .about-main {
        grid-column: 1;
    }

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

    .skill-module.wide {
        grid-column: span 1;
    }

    .timeline-item {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .timeline-left {
        flex-direction: row;
        align-items: center;
        padding-top: 0;
        padding-bottom: 1rem;
    }

    .timeline-connector {
        display: none;
    }

    .timeline-date-label {
        text-align: left;
    }

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

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

    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        max-width: 320px;
        height: 100vh;
        background: rgba(10, 10, 18, 0.95);
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        border-left: 1px solid var(--border-dim);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        padding: 2rem;
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1000;
    }

    .nav-links.active {
        right: 0;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.8);
    }

    .nav-links a {
        font-size: 0.9rem;
    }

    .lang-toggle {
        margin-left: 0;
    }

    .profile-frame {
        width: 220px;
        height: 220px;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 4rem 1.2rem;
    }

    .nav-content {
        padding: 0 1.2rem;
    }

    .hero-stats {
        gap: 1.5rem;
    }
}