/* ===================================
   Design System & Variables
   =================================== */
:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #0f0f17;
    --bg-card: rgba(15, 15, 23, 0.6);
    --bg-glass: rgba(255, 255, 255, 0.03);

    --text-primary: #e8e6f0;
    --text-secondary: #8b89a0;
    --text-muted: #5a5870;

    --accent-primary: #6c5ce7;
    --accent-secondary: #a29bfe;
    --accent-glow: rgba(108, 92, 231, 0.3);
    --accent-gradient: linear-gradient(135deg, #6c5ce7 0%, #a29bfe 50%, #74b9ff 100%);

    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(108, 92, 231, 0.3);

    /* Spacing */
    --section-padding: 120px;
    --container-max: 1200px;
    --container-padding: 24px;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Transitions */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Radii */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-primary);
    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;
}

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

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ===================================
   Background Aurora Effect
   =================================== */
.bg-aurora {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    overflow: hidden;
    pointer-events: none;
}

.aurora-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    animation: auroraFloat 20s ease-in-out infinite;
}

.aurora-blob-1 {
    width: 600px;
    height: 600px;
    background: var(--accent-primary);
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.aurora-blob-2 {
    width: 500px;
    height: 500px;
    background: #74b9ff;
    bottom: -150px;
    left: -100px;
    animation-delay: -7s;
}

.aurora-blob-3 {
    width: 400px;
    height: 400px;
    background: #a29bfe;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes auroraFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -50px) scale(1.1); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(10px, 40px) scale(1.05); }
}

.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* ===================================
   Container
   =================================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.4s var(--ease-out-expo);
}

.navbar.scrolled {
    padding: 12px 0;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
}

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

.nav-logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    transition: transform 0.3s var(--ease-out-back);
}

.nav-logo:hover {
    transform: scale(1.05);
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-link {
    display: block;
    padding: 8px 16px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all 0.3s var(--ease-out-expo);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    border-radius: 1px;
    transition: all 0.3s var(--ease-out-expo);
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 20px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s var(--ease-out-expo);
}

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

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

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

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 120px var(--container-padding) 60px;
    position: relative;
}

.hero-content {
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px 6px 12px;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 32px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s var(--ease-out-expo) 0.2s forwards;
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #00b894;
    box-shadow: 0 0 12px rgba(0, 184, 148, 0.5);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.85); }
}

.hero-title {
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s var(--ease-out-expo) 0.4s forwards;
}

.hero-greeting {
    display: block;
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    font-weight: 400;
    color: var(--text-secondary);
    letter-spacing: 0;
    margin-bottom: 8px;
}

.hero-name {
    display: block;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.accent-dot {
    -webkit-text-fill-color: var(--accent-primary);
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    font-family: var(--font-mono);
    color: var(--accent-secondary);
    margin-bottom: 16px;
    min-height: 2em;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s var(--ease-out-expo) 0.6s forwards;
}

.cursor {
    animation: blink 1s step-end infinite;
    color: var(--accent-primary);
}

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

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 550px;
    margin: 0 auto 40px;
    line-height: 1.8;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s var(--ease-out-expo) 0.8s forwards;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 48px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s var(--ease-out-expo) 1s forwards;
}

.hero-socials {
    display: flex;
    gap: 12px;
    justify-content: center;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s var(--ease-out-expo) 1.2s forwards;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    transition: all 0.3s var(--ease-out-expo);
}

.social-link:hover {
    color: var(--text-primary);
    border-color: var(--accent-primary);
    background: var(--accent-glow);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px var(--accent-glow);
}

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

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0;
    animation: fadeUp 0.8s var(--ease-out-expo) 1.5s forwards;
}

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

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

@keyframes scroll {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(14px); }
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all 0.4s var(--ease-out-expo);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(108, 92, 231, 0.4);
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s;
}

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

.btn-outline {
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    border-color: var(--accent-primary);
    background: var(--accent-glow);
    transform: translateY(-2px);
}

/* ===================================
   Section Common
   =================================== */
.section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-alt {
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 12px;
    letter-spacing: 0.05em;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.section-line {
    width: 60px;
    height: 3px;
    background: var(--accent-gradient);
    border-radius: 2px;
    margin: 0 auto;
}

/* ===================================
   About Section
   =================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 1.0625rem;
}

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

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--border-subtle);
}

.stat-item {
    text-align: center;
}

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

.stat-suffix {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 4px;
    font-weight: 500;
}

/* Code Window */
.about-visual {
    perspective: 1000px;
}

.code-window {
    background: rgba(12, 12, 20, 0.8);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.4),
        0 0 80px var(--accent-glow);
    transition: transform 0.5s var(--ease-out-expo);
}

.code-window:hover {
    transform: rotateY(-2deg) rotateX(2deg) scale(1.02);
}

.code-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--border-subtle);
}

.code-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #28ca42; }

.code-filename {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.code-body {
    padding: 24px;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-key { color: #a29bfe; }
.code-string { color: #55efc4; }
.code-number { color: #fdcb6e; }
.code-bool { color: #74b9ff; }

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

.skill-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: all 0.4s var(--ease-out-expo);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease-out-expo);
}

.skill-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.skill-card:hover::before {
    transform: scaleX(1);
}

.skill-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--accent-glow);
    color: var(--accent-secondary);
    margin-bottom: 20px;
}

.skill-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 16px;
}

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

.skill-tag {
    display: inline-block;
    padding: 4px 12px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: rgba(108, 92, 231, 0.08);
    border: 1px solid rgba(108, 92, 231, 0.15);
    border-radius: 100px;
    transition: all 0.3s;
}

.skill-card:hover .skill-tag {
    border-color: rgba(108, 92, 231, 0.3);
    color: var(--text-primary);
}

/* ===================================
   Projects Section
   =================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.4s var(--ease-out-expo);
}

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

.project-featured {
    grid-column: span 2;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
}

.project-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(108, 92, 231, 0.1), rgba(116, 185, 255, 0.1));
}

.project-featured .project-image {
    aspect-ratio: auto;
}

.project-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    color: var(--text-muted);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 15, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    opacity: 0;
    transition: opacity 0.3s var(--ease-out-expo);
}

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

.project-link-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    transition: all 0.3s;
    transform: translateY(10px);
}

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

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

.project-info {
    padding: 28px;
}

.project-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.project-title {
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.project-desc {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

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

.project-tech span {
    padding: 4px 12px;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--accent-secondary);
    background: rgba(108, 92, 231, 0.1);
    border-radius: 100px;
}

/* ===================================
   Contact Section
   =================================== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 64px;
    align-items: start;
}

.contact-heading {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.contact-text p {
    color: var(--text-secondary);
    font-size: 1.0625rem;
    margin-bottom: 32px;
}

.contact-info-items {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.contact-info-item svg {
    color: var(--accent-primary);
    flex-shrink: 0;
}

/* Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.form-group {
    position: relative;
}

.form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-input {
    width: 100%;
    padding: 14px 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-primary);
    outline: none;
    transition: border-color 0.3s;
}

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

.form-input:focus {
    border-color: var(--accent-primary);
}

.form-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: width 0.4s var(--ease-out-expo);
}

.form-input:focus ~ .form-line {
    width: 100%;
}

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

.btn-submit {
    align-self: flex-start;
    margin-top: 8px;
}

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

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.footer-heart {
    color: #ff6b6b;
    animation: heartbeat 1.5s ease-in-out infinite;
    display: inline-block;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.footer-copyright {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* ===================================
   Experience Timeline
   =================================== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-item {
    display: flex;
    gap: 32px;
    padding-bottom: 48px;
    position: relative;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
}

.timeline-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-gradient);
    box-shadow: 0 0 20px var(--accent-glow);
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.timeline-line {
    width: 2px;
    flex-grow: 1;
    background: linear-gradient(to bottom, var(--accent-primary), var(--border-subtle));
    margin-top: 8px;
}

.timeline-item:last-child .timeline-line {
    display: none;
}

.timeline-content {
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 28px;
    flex-grow: 1;
    transition: all 0.4s var(--ease-out-expo);
}

.timeline-content:hover {
    border-color: var(--border-hover);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    transform: translateX(4px);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.timeline-title {
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.timeline-company {
    display: block;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--accent-secondary);
    margin-top: 4px;
}

.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    white-space: nowrap;
    padding: 4px 12px;
    background: rgba(108, 92, 231, 0.08);
    border-radius: 100px;
    flex-shrink: 0;
}

.timeline-location {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.timeline-desc {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 16px;
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.timeline-tags span {
    padding: 3px 10px;
    font-size: 0.6875rem;
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--accent-secondary);
    background: rgba(108, 92, 231, 0.1);
    border-radius: 100px;
    letter-spacing: 0.02em;
}

/* ===================================
   Certifications Section
   =================================== */
.certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
}

.cert-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    transition: all 0.3s var(--ease-out-expo);
}

.cert-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.cert-education {
    border-left: 3px solid var(--accent-primary);
}

.cert-icon {
    font-size: 1.75rem;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(108, 92, 231, 0.08);
    border-radius: var(--radius-sm);
}

.cert-info {
    flex-grow: 1;
    min-width: 0;
}

.cert-title {
    font-size: 0.9375rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.cert-subtitle {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.cert-org {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    margin-top: 4px;
}

/* ===================================
   Contact Link Styles
   =================================== */
.contact-info-item a {
    color: var(--text-secondary);
    transition: color 0.3s;
}

.contact-info-item a:hover {
    color: var(--accent-secondary);
}

/* ===================================
   RGPD Consent Checkbox
   =================================== */
.form-consent {
    margin-top: -8px;
}

.consent-label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    font-size: 0.8125rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.consent-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.consent-checkmark {
    width: 20px;
    height: 20px;
    min-width: 20px;
    border: 2px solid var(--border-subtle);
    border-radius: 4px;
    margin-top: 1px;
    transition: all 0.3s;
    position: relative;
}

.consent-label input:checked ~ .consent-checkmark {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.consent-label input:checked ~ .consent-checkmark::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 1px;
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.consent-label:hover .consent-checkmark {
    border-color: var(--accent-primary);
}

.consent-text {
    flex: 1;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-6px); }
    40% { transform: translateX(6px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}

.shake {
    animation: shake 0.5s ease-in-out;
}

.shake .consent-checkmark {
    border-color: #ff6b6b;
}

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

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

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 968px) {
    :root {
        --section-padding: 80px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .about-visual {
        order: -1;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .timeline-header {
        flex-direction: column;
        gap: 8px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        flex-direction: column;
        background: rgba(10, 10, 15, 0.95);
        backdrop-filter: blur(20px);
        padding: 100px 32px 32px;
        gap: 4px;
        transition: right 0.4s var(--ease-out-expo);
        border-left: 1px solid var(--border-subtle);
    }

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

    .nav-link {
        font-size: 1rem;
        padding: 12px 16px;
    }

    .nav-toggle {
        display: flex;
    }

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

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

    .timeline-item {
        gap: 20px;
    }

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

    .footer-container {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --section-padding: 64px;
        --container-padding: 20px;
    }

    .hero {
        padding: 100px var(--container-padding) 40px;
    }

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

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

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

    .timeline-marker {
        display: none;
    }

    .timeline-item {
        gap: 0;
    }
}