/* ========================================
   DESIGN SYSTEM — goktenay.com
   ======================================== */

/* --- CSS Custom Properties --- */
:root {
    /* Colors */
    --bg-primary: #07070d;
    --bg-secondary: #0d0d16;
    --bg-card: rgba(15, 15, 25, 0.6);
    --bg-card-hover: rgba(20, 20, 35, 0.8);
    
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b8;
    --text-muted: #6a6a82;
    
    --cyan: #00e5ff;
    --magenta: #ff2d95;
    --neon-green: #39ff14;
    
    --cyan-glow: rgba(0, 229, 255, 0.3);
    --magenta-glow: rgba(255, 45, 149, 0.3);
    --neon-green-glow: rgba(57, 255, 20, 0.3);
    
    --gradient-1: linear-gradient(135deg, var(--cyan), var(--magenta));
    --gradient-2: linear-gradient(135deg, var(--magenta), var(--neon-green));
    --gradient-3: linear-gradient(135deg, var(--neon-green), var(--cyan));
    
    --border-color: rgba(255, 255, 255, 0.06);
    --border-glow: rgba(0, 229, 255, 0.15);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --section-padding: 120px;
    --container-max: 1200px;
    
    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition-fast: 0.2s var(--ease-out);
    --transition-normal: 0.4s var(--ease-out);
    --transition-slow: 0.7s var(--ease-out);
    
    /* Glass */
    --glass-bg: rgba(15, 15, 25, 0.5);
    --glass-blur: 20px;
    --glass-border: rgba(255, 255, 255, 0.08);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    scrollbar-width: thin;
    scrollbar-color: var(--cyan) var(--bg-primary);
}

html::-webkit-scrollbar {
    width: 6px;
}

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

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

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

ul {
    list-style: none;
}

/* --- Utilities --- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

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

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    margin-bottom: 60px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.section-number {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 500;
    color: var(--cyan);
    letter-spacing: 0.05em;
}

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--border-glow), transparent);
    max-width: 300px;
}

/* --- Glass Card --- */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    transition: all var(--transition-normal);
}

.glass-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 12px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    border: none;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn-primary {
    background: var(--gradient-1);
    color: #fff;
    box-shadow: 0 4px 24px var(--cyan-glow), 0 4px 24px var(--magenta-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 40px var(--cyan-glow), 0 8px 40px var(--magenta-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

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

.btn-outline:hover {
    background: rgba(0, 229, 255, 0.08);
    box-shadow: 0 0 20px var(--cyan-glow);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* --- Tags --- */
.tag {
    display: inline-block;
    padding: 4px 12px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--cyan);
    background: rgba(0, 229, 255, 0.08);
    border: 1px solid rgba(0, 229, 255, 0.15);
    border-radius: 6px;
    letter-spacing: 0.03em;
}


/* ========================================
   NAVBAR
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    padding: 12px 0;
    background: rgba(7, 7, 13, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    transition: all var(--transition-fast);
}

.logo-bracket {
    color: var(--cyan);
    font-weight: 400;
}

.nav-logo:hover {
    color: var(--cyan);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 18px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: 8px;
    position: relative;
    transition: all var(--transition-fast);
}

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

.nav-link.active {
    color: var(--cyan);
    background: rgba(0, 229, 255, 0.06);
}

/* Hamburger */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
    transform-origin: center;
}

.nav-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}


/* ========================================
   HERO
   ======================================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    padding: 0 24px;
}

.hero-greeting {
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--cyan);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 16px;
    opacity: 0;
    animation: fadeInUp 0.8s var(--ease-out) 0.2s forwards;
}

.hero-name {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 8vw, 6.5rem);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.name-line {
    display: block;
    opacity: 0;
    animation: fadeInUp 0.8s var(--ease-out) forwards;
}

.name-line:nth-child(1) {
    animation-delay: 0.4s;
}

.name-line.accent {
    animation-delay: 0.6s;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    font-size: 1.3rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 20px;
    min-height: 2em;
    opacity: 0;
    animation: fadeInUp 0.8s var(--ease-out) 0.8s forwards;
}

.tagline-cursor {
    display: inline-block;
    color: var(--cyan);
    animation: blink 1s step-end infinite;
    font-weight: 300;
    margin-left: 2px;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 550px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0;
    animation: fadeInUp 0.8s var(--ease-out) 1s forwards;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 0.8s var(--ease-out) 1.2s forwards;
}

/* Scroll indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 1;
    opacity: 0;
    animation: fadeInUp 0.8s var(--ease-out) 1.6s forwards;
}

.hero-scroll-indicator span {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.scroll-mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.scroll-wheel {
    width: 3px;
    height: 8px;
    background: var(--cyan);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheel 2s ease-in-out infinite;
}


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

.about-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 60px;
    align-items: start;
}

.about-image-frame {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
}

.about-image-frame::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: var(--gradient-3);
    border-radius: 22px;
    z-index: -1;
    opacity: 0.6;
    transition: opacity var(--transition-normal);
}

.about-image-wrapper:hover .about-image-frame::before {
    opacity: 1;
}

.about-image-placeholder {
    width: 100%;
    aspect-ratio: 3/4;
    background: var(--bg-card);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-radius: 20px;
}

.about-image-placeholder svg {
    opacity: 0.4;
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.about-text {
    padding: 32px;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 1rem;
    line-height: 1.8;
}

.about-text p:last-child {
    margin-bottom: 0;
}

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

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.stat-card {
    padding: 24px;
    text-align: center;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.stat-plus {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
    letter-spacing: 0.03em;
}


/* ========================================
   PROJECTS
   ======================================== */
.project-filters {
    display: flex;
    gap: 8px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 10px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.03);
}

.filter-btn.active {
    color: var(--bg-primary);
    background: var(--cyan);
    border-color: var(--cyan);
    box-shadow: 0 0 20px var(--cyan-glow);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.project-card {
    overflow: hidden;
    transition: all var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

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

.project-thumbnail {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.project-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
    color: var(--accent, var(--cyan));
    transition: transform var(--transition-slow);
}

.project-card:hover .project-image-placeholder {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(7, 7, 13, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

.project-links {
    display: flex;
    gap: 16px;
}

.project-link {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: all var(--transition-fast);
    transform: translateY(10px);
    opacity: 0;
}

.project-card:hover .project-link {
    transform: translateY(0);
    opacity: 1;
}

.project-card:hover .project-link:nth-child(2) {
    transition-delay: 0.08s;
}

.project-link:hover {
    background: var(--cyan);
    border-color: var(--cyan);
    color: var(--bg-primary);
    box-shadow: 0 0 20px var(--cyan-glow);
}

.project-info {
    padding: 24px;
}

.project-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
    transition: color var(--transition-fast);
}

.project-card:hover .project-title {
    color: var(--cyan);
}

.project-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.project-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}


/* ========================================
   EXPERIENCE / TIMELINE
   ======================================== */
.experience-section {
    background: var(--bg-secondary);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto 48px;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--cyan), var(--magenta), var(--neon-green));
    transform: translateX(-50%);
    opacity: 0.3;
}

.timeline-item {
    display: flex;
    justify-content: flex-end;
    padding: 0 0 48px;
    position: relative;
    width: 50%;
}

.timeline-item:nth-child(odd) {
    align-self: flex-start;
    padding-right: 48px;
}

.timeline-item:nth-child(even) {
    align-self: flex-end;
    margin-left: 50%;
    padding-left: 48px;
    justify-content: flex-start;
}

.timeline-dot {
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--cyan);
    border: 3px solid var(--bg-secondary);
    box-shadow: 0 0 12px var(--cyan-glow);
    z-index: 1;
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: -8px;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -8px;
}

.timeline-content {
    padding: 28px;
    max-width: 100%;
}

.timeline-date {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--cyan);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.timeline-role {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.timeline-company {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-bottom: 12px;
}

.timeline-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.timeline-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.resume-download {
    text-align: center;
}


/* ========================================
   SKILLS
   ======================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

.skill-category {
    padding: 28px;
}

.skill-category-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.skill-category-header svg {
    color: var(--cyan);
    flex-shrink: 0;
}

.skill-category-header h3 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.skill-item:hover {
    color: var(--text-primary);
}

.skill-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--dot-color, var(--cyan));
    box-shadow: 0 0 8px var(--dot-color, var(--cyan-glow));
    flex-shrink: 0;
}


/* ========================================
   CONTACT
   ======================================== */
.contact-section {
    background: var(--bg-secondary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact-text {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    cursor: pointer;
}

.contact-method svg {
    color: var(--cyan);
    flex-shrink: 0;
}

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

.method-value {
    display: block;
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* Social Links */
.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-link:hover {
    color: var(--cyan);
    border-color: var(--cyan);
    background: rgba(0, 229, 255, 0.08);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--cyan-glow);
}

/* Contact Form */
.contact-form {
    padding: 36px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--cyan);
    box-shadow: 0 0 0 3px var(--cyan-glow);
    background: rgba(0, 229, 255, 0.03);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}


/* ========================================
   FOOTER
   ======================================== */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    text-align: center;
}

.footer-text {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.footer-name {
    color: var(--cyan);
    font-weight: 500;
}

.footer-copyright {
    font-size: 0.8rem;
    color: var(--text-muted);
    opacity: 0.6;
}


/* ========================================
   ANIMATIONS
   ======================================== */

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

/* Cursor blink */
@keyframes blink {
    50% { opacity: 0; }
}

/* Scroll wheel */
@keyframes scrollWheel {
    0% {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateX(-50%) translateY(12px);
        opacity: 0;
    }
    100% {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
}

/* Reveal on scroll */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s var(--ease-out);
}

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

.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }
.reveal[data-delay="4"] { transition-delay: 0.4s; }
.reveal[data-delay="5"] { transition-delay: 0.5s; }

/* Timeline animations */
.timeline-item {
    opacity: 0;
    transition: all 0.8s var(--ease-out);
}

.timeline-item:nth-child(odd) {
    transform: translateX(-40px);
}

.timeline-item:nth-child(even) {
    transform: translateX(40px);
}

.timeline-item.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Stat counter */
.stat-card {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s var(--ease-out);
}

.stat-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.stat-card:nth-child(2).visible { transition-delay: 0.1s; }
.stat-card:nth-child(3).visible { transition-delay: 0.2s; }


/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image-wrapper {
        max-width: 280px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 80px;
    }

    /* Nav mobile */
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        width: 280px;
        height: 100vh;
        background: rgba(7, 7, 13, 0.97);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        flex-direction: column;
        justify-content: center;
        gap: 8px;
        padding: 32px;
        transform: translateX(100%);
        transition: transform 0.4s var(--ease-out);
        border-left: 1px solid var(--border-color);
    }

    .nav-links.open {
        transform: translateX(0);
    }

    .nav-link {
        font-size: 1.1rem;
        padding: 14px 20px;
    }

    /* Hero */
    .hero-name {
        font-size: clamp(2.5rem, 10vw, 4rem);
    }

    .hero-tagline {
        font-size: 1.1rem;
    }

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

    /* Timeline */
    .timeline-line {
        left: 16px;
    }

    .timeline-item,
    .timeline-item:nth-child(even) {
        width: 100%;
        margin-left: 0;
        padding-left: 52px;
        padding-right: 0;
        justify-content: flex-start;
    }

    .timeline-dot,
    .timeline-item:nth-child(odd) .timeline-dot,
    .timeline-item:nth-child(even) .timeline-dot {
        left: 8px;
        right: auto;
    }

    .timeline-item:nth-child(odd) {
        transform: translateX(0);
    }

    .timeline-item:nth-child(even) {
        transform: translateX(0);
    }

    .timeline-item.visible {
        transform: translateX(0);
    }

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

    /* Stats */
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }

    .stat-number {
        font-size: 2rem;
    }

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

@media (max-width: 480px) {
    :root {
        --section-padding: 60px;
    }

    .section-title {
        font-size: 1.6rem;
        margin-bottom: 40px;
    }

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

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

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

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