/* Variables - Dark Techno Theme */
:root {
    --primary-color: #00d4ff;
    --secondary-color: #0099cc;
    --accent-color: #ff6b35;
    --neon-blue: #00ffff;
    --neon-purple: #b300ff;
    --text-color: #e2e8f0;
    --light-text: #94a3b8;
    --background: #0a0e1a;
    --dark-bg: #1a1f2e;
    --card-bg: #1e293b;
    --border-color: #334155;
    --transition: all 0.3s ease;
    --glow: 0 0 20px rgba(0, 212, 255, 0.3);
    --glow-hover: 0 0 30px rgba(0, 212, 255, 0.5);
}

/* Light Theme Variables */
[data-theme="light"] {
    --primary-color: #2563eb;
    --secondary-color: #1d4ed8;
    --accent-color: #dc2626;
    --neon-blue: #3b82f6;
    --neon-purple: #8b5cf6;
    --text-color: #1f2937;
    --light-text: #6b7280;
    --background: #f8fafc;
    --dark-bg: #ffffff;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
    --glow: 0 0 20px rgba(37, 99, 235, 0.2);
    --glow-hover: 0 0 30px rgba(37, 99, 235, 0.3);
}

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

/* Global animation classes */
.fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

.slide-up {
    animation: slideUp 0.5s ease-out forwards;
}

.scale-in {
    animation: scaleIn 0.3s ease-out forwards;
}

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

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background);
    overflow-x: hidden;
}

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

h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.2;
}

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

a:hover {
    color: var(--secondary-color);
}

section {
    padding: 6rem 0;
}

section:nth-child(even) {
    background-color: var(--dark-bg);
}

section:nth-child(odd) {
    background: linear-gradient(135deg, var(--background) 0%, var(--dark-bg) 100%);
}


/* Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 20px rgba(0, 212, 255, 0.1);
    transition: var(--transition);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    width: 100%;
}


.theme-toggle {
    order: 3;
}

#theme-toggle-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--primary-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.1rem;
}

#theme-toggle-btn:hover {
    background: linear-gradient(45deg, var(--primary-color), var(--neon-blue));
    color: var(--background);
    box-shadow: var(--glow);
    transform: rotate(180deg);
}

.nav-links {
    display: flex;
    list-style: none;
    order: 2;
}

.nav-links li {
    margin-left: 2.5rem;
}

.nav-links a {
    color: var(--text-color);
    font-weight: 500;
    position: relative;
    padding: 0.8rem 1rem;
    border-radius: 8px;
    transition: var(--transition);
    display: inline-block;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--neon-blue));
    box-shadow: var(--glow);
    transition: var(--transition);
}

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

.nav-links a:hover {
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-2px);
}

/* Hero Decorations */
.hero-decorations {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.floating-element {
    position: absolute;
    font-size: 2rem;
    color: var(--primary-color);
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.floating-element:nth-child(3) {
    bottom: 30%;
    left: 20%;
    animation-delay: 4s;
}

.floating-element:nth-child(4) {
    top: 40%;
    right: 30%;
    animation-delay: 1s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); opacity: 0.1; }
    50% { transform: translateY(-20px) rotate(180deg); opacity: 0.3; }
}

.typing-container {
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    text-shadow: var(--glow);
}

.typing-prefix {
    color: var(--neon-blue);
}

.typing-text {
    animation: typing 2s steps(6) infinite;
}

@keyframes typing {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-badges {
    display: flex;
    gap: 1rem;
    margin: 2rem 0;
    flex-wrap: wrap;
    justify-content: center;
}

.badge {
    background: linear-gradient(45deg, var(--dark-bg), var(--card-bg));
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.badge:hover {
    background: linear-gradient(45deg, var(--primary-color), var(--neon-blue));
    color: var(--background);
    box-shadow: var(--glow);
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.cta-button i {
    transition: var(--transition);
}

.cta-button:hover i {
    transform: translateX(5px);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    background: radial-gradient(ellipse at center, var(--dark-bg) 0%, var(--background) 70%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(179, 0, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(255, 107, 53, 0.1) 0%, transparent 50%);
    animation: technoFloat 15s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(90deg, transparent 0%, rgba(0, 212, 255, 0.03) 50%, transparent 100%),
        linear-gradient(0deg, transparent 0%, rgba(179, 0, 255, 0.03) 50%, transparent 100%);
    animation: scanLines 8s linear infinite;
}

@keyframes technoFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-20px) rotate(1deg); }
    66% { transform: translateY(10px) rotate(-1deg); }
}

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

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    animation: fadeInUp 1s ease-out;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--text-color);
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
    font-weight: 700;
}

.tagline {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
    font-family: 'Courier New', monospace;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(45deg, var(--primary-color), var(--neon-blue));
    color: var(--background);
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    border: 2px solid var(--primary-color);
    box-shadow: var(--glow);
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition);
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    background: linear-gradient(45deg, var(--neon-blue), var(--primary-color));
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--glow-hover);
    color: var(--background);
}

.cta-button:active {
    transform: translateY(-1px) scale(0.98);
    transition: transform 0.1s ease;
}

/* About Section */
.about {
    text-align: center;
}

.about h2 {
    text-align: center;
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-shadow: var(--glow);
    position: relative;
}

.about h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--neon-blue));
    border-radius: 2px;
    box-shadow: var(--glow);
}

.about-content {
    display: grid;
    gap: 3rem;
    justify-items: center;
    align-items: start;
    max-width: 1000px;
    margin: 0 auto;
}

.about-text {
    max-width: 800px;
    margin: 0 auto;
    text-align: justify;
    line-height: 1.8;
}

.about-text p {
    margin-bottom: 1.8rem;
    color: var(--light-text);
    font-size: 1.1rem;
    text-align: justify;
    line-height: 1.7;
}

.about-stats {
    display: flex;
    gap: 4rem;
    margin: 3rem auto 0;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    justify-content: center;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    min-width: 120px;
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
    text-shadow: var(--glow);
}

.stat-label {
    display: block;
    font-size: 1rem;
    color: var(--light-text);
    margin-top: 0.8rem;
    font-weight: 500;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    width: 100%;
}

.highlight-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 1.75rem;
    transition: var(--transition);
    text-align: left;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.25);
    height: 100%;
}

.highlight-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.highlight-card h3 {
    color: var(--text-color);
    margin-bottom: 0.75rem;
}

.highlight-card p {
    color: var(--light-text);
    font-size: 0.95rem;
    line-height: 1.6;
}

.highlight-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary-color);
    box-shadow: var(--glow-hover);
}

/* Skills Section */
.skills-content {
    margin-top: 3rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.skill-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--neon-blue));
    transform: scaleX(0);
    transition: var(--transition);
}

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

.skill-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--glow-hover);
    border-color: var(--primary-color);
    position: relative;
}

.skill-card:hover::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 212, 255, 0.1) 0%, transparent 50%);
    border-radius: 15px;
    pointer-events: none;
    animation: tech-glow 2s ease-in-out infinite alternate;
}

@keyframes tech-glow {
    0% { opacity: 0.3; }
    100% { opacity: 0.7; }
}

.skill-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    text-shadow: var(--glow);
    transition: var(--transition);
}

.skill-card:hover i {
    transform: scale(1.1);
    color: var(--neon-blue);
}

.skill-card h3 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

.skill-card p {
    color: var(--light-text);
    font-size: 0.9rem;
    line-height: 1.6;
}


.skills-charts {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
}

.chart-container h3 {
    color: var(--text-color);
    margin-bottom: 2rem;
    text-align: center;
}

.circular-charts {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.circular-chart {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto;
}

.circle-bg {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: conic-gradient(var(--primary-color) 0deg, var(--neon-blue) 90deg, var(--dark-bg) 90deg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.circle-bg::before {
    content: '';
    position: absolute;
    width: 80px;
    height: 80px;
    background: var(--card-bg);
    border-radius: 50%;
    border: 2px solid var(--border-color);
}

.circle-text {
    position: relative;
    z-index: 1;
    text-align: center;
}

.circle-text .percentage {
    display: block;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    text-shadow: var(--glow);
}

.circle-text .label {
    display: block;
    font-size: 0.7rem;
    color: var(--light-text);
    margin-top: 0.2rem;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary-color);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(179, 0, 255, 0.1));
    transition: var(--transition);
}

.project-card:hover::before {
    width: 100%;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--glow-hover);
    border-color: var(--primary-color);
}

.project-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--neon-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: var(--glow);
    position: relative;
    z-index: 1;
}

.project-icon i {
    font-size: 2rem;
    color: white;
}

.project-card h3 {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.project-type {
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.project-card p:last-child {
    color: var(--light-text);
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.tech-tag {
    background: linear-gradient(45deg, var(--dark-bg), var(--card-bg));
    color: var(--primary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.tech-tag:hover {
    background: linear-gradient(45deg, var(--primary-color), var(--neon-blue));
    color: var(--background);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

.project-details {
    margin: 1rem 0;
    text-align: left;
    position: relative;
    z-index: 1;
}

.project-details strong {
    color: var(--primary-color);
    font-size: 0.9rem;
    display: block;
    margin-bottom: 0.5rem;
}

.project-details ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.project-details li {
    position: relative;
    padding-left: 1.2rem;
    margin-bottom: 0.3rem;
    color: var(--light-text);
    font-size: 0.85rem;
    line-height: 1.4;
}

.project-details li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--neon-blue);
    font-weight: bold;
}

/* Achievements Section */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.achievement-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    text-align: center;
}

.achievement-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--glow-hover);
    border-color: var(--primary-color);
}

.achievement-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(45deg, var(--primary-color), var(--neon-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--background);
    box-shadow: var(--glow);
}

.achievement-card h3 {
    color: var(--text-color);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.achievement-date {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.achievement-card p {
    color: var(--light-text);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.achievement-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.achievement-skills span {
    background: linear-gradient(45deg, var(--primary-color), var(--neon-blue));
    color: var(--background);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Portfolio Section */
.section-subtitle {
    text-align: center;
    color: var(--light-text);
    font-size: 1.1rem;
    margin-bottom: 3rem;
    font-style: italic;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.portfolio-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    cursor: pointer;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--glow-hover);
    border-color: var(--primary-color);
}

.portfolio-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.placeholder-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--dark-bg), var(--card-bg));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 3rem;
    border-bottom: 1px solid var(--border-color);
}

.placeholder-image span {
    font-size: 1rem;
    margin-top: 1rem;
    font-weight: 500;
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    padding: 2rem;
    transform: translateY(100%);
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
}

.portfolio-overlay h4 {
    color: var(--text-color);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.portfolio-overlay p {
    color: var(--light-text);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

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

.portfolio-tags span {
    background: linear-gradient(45deg, var(--primary-color), var(--neon-blue));
    color: var(--background);
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

.portfolio-note {
    margin-top: 3rem;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.portfolio-note i {
    color: var(--primary-color);
    margin-right: 0.5rem;
}

.portfolio-note p {
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-align: left;
}

.education-icon i {
    font-size: 1.5rem;
    color: white;
}

.education-details h3 {
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.education-details h4 {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.education-date {
    color: var(--light-text);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.education-description {
    color: var(--light-text);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.education-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    background: linear-gradient(45deg, var(--dark-bg), var(--card-bg));
    color: var(--primary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

.certifications-preview {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.certifications-preview h4 {
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: 1rem;
    text-shadow: 0 0 5px rgba(0, 212, 255, 0.3);
}

.certifications-preview ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.certifications-preview li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
}

.skill-card p {
    left: 0;
    top: 0;
}

.languages-section {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    height: fit-content;
}

.languages-section h3 {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    text-align: center;
}

.language-item {
    margin-bottom: 1.5rem;
}

.language-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.language-name {
    font-weight: 500;
    color: var(--text-color);
}

.language-level {
    font-size: 0.9rem;
    color: var(--light-text);
}

.language-bar {
    height: 8px;
    background-color: var(--dark-bg);
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.language-progress {
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--neon-blue));
    border-radius: 4px;
    transition: var(--transition);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

/* Experience Section - Horizontal Layout */
.experience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.experience-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    overflow: hidden;
    position: relative;
}

.experience-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--neon-blue));
    box-shadow: var(--glow);
}

.experience-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--glow-hover);
    border-color: var(--primary-color);
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

.experience-period {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.year-start, .year-end {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    text-shadow: var(--glow);
    font-family: 'Courier New', monospace;
}

.period-line {
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--neon-blue));
    box-shadow: var(--glow);
}

.experience-badge {
    background: linear-gradient(45deg, var(--primary-color), var(--neon-blue));
    color: var(--background);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--glow);
}

.experience-badge.formation {
    background: linear-gradient(45deg, var(--accent-color), var(--neon-purple));
}

.experience-content {
    padding: 2rem;
}

.experience-content h3 {
    color: var(--text-color);
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.experience-content h4 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.date {
    color: var(--light-text);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    font-style: italic;
}

.experience-description {
    color: var(--light-text);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.experience-tasks {
    margin-bottom: 1.5rem;
}

.experience-tasks h5 {
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.experience-tasks ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.experience-tasks li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.6rem;
    color: var(--light-text);
    line-height: 1.5;
    font-size: 0.9rem;
}

.experience-tasks li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--neon-blue);
    font-weight: bold;
}

.experience-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.exp-skill {
    background: linear-gradient(45deg, var(--dark-bg), var(--card-bg));
    color: var(--primary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.exp-skill:hover {
    background: linear-gradient(45deg, var(--primary-color), var(--neon-blue));
    color: var(--background);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

/* Contact Section */
.contact {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.contact h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-color);
    display: block !important;
    visibility: visible !important;
}

.contact-content {
    display: flex !important;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
    margin-top: 3rem;
    visibility: visible !important;
    opacity: 1 !important;
}

.contact-info-center {
    display: grid !important;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    width: 100%;
    max-width: 1000px;
    visibility: visible !important;
    opacity: 1 !important;
}

.info-item {
    display: flex !important;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-align: left;
    visibility: visible !important;
    opacity: 1 !important;
}


.info-item i {
    font-size: 2rem;
    color: var(--primary-color);
    width: 50px;
    text-align: center;
    flex-shrink: 0;
}

.info-details {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.info-details h4 {
    color: var(--text-color);
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.info-details p {
    margin: 0;
    color: var(--light-text);
    font-weight: 500;
    word-break: keep-all;
    overflow-wrap: anywhere;
    line-height: 1.4;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Contact links styling */
a.info-item {
    color: inherit;
    text-decoration: none;
}

a.info-item:hover {
    color: inherit;
}

a.info-item .info-details h4 {
    color: var(--text-color);
}
a.info-item .info-details p {
    color: var(--light-text);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    background: var(--dark-bg);
    color: var(--text-color);
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
    background: var(--card-bg);
}

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

.contact-form textarea {
    min-height: 150px;
    resize: vertical;
}

.submit-btn {
    background: linear-gradient(45deg, var(--primary-color), var(--neon-blue));
    color: var(--background);
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    width: 100%;
    box-shadow: var(--glow);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.submit-btn:hover {
    background: linear-gradient(45deg, var(--neon-blue), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: var(--glow-hover);
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 0;
    background: var(--background);
    transition: var(--transition);
    color: var(--text-color);
    border-top: 1px solid var(--border-color);
    position: relative;
    z-index: 1;
}


/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translate3d(0, 30px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

/* Optimisation des performances */
.skill-card,
.education-item,
.info-item,
.achievement-card {
    will-change: transform;
}

.skill-card:hover,
.education-item:hover,
.info-item:hover,
.achievement-card:hover {
    will-change: auto;
}

/* Accessibilité - Focus visible */
a:focus,
button:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    border-radius: 4px;
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(0, 212, 255, 0.2);
}

/* Responsive Design */
@media (max-width: 992px) {
    .about-stats {
        justify-content: center;
    }
    
    .contact-content {
        flex-direction: column;
    }
    
    .education-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .education-item {
        flex-direction: column;
        text-align: center;
    }
    
    .experience-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .experience-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .experience-period {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    section {
        padding: 4rem 0;
    }
    
    .about h2 {
        font-size: 2rem;
        margin-bottom: 2rem;
    }
    
    .about h2::after {
        width: 60px;
        height: 2px;
        bottom: -10px;
    }

    .about-content {
        gap: 2rem;
    }

    .about-text {
        text-align: center;
    }
    
    .about-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .highlight-card {
        text-align: center;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .education-item {
        padding: 1.5rem;
    }
    
    .languages-section {
        padding: 1.5rem;
    }
    
    .experience-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .experience-card {
        margin: 0;
    }
    
    .experience-content {
        padding: 1.5rem;
    }
    
    .experience-header {
        padding: 1rem 1.5rem 0.5rem;
    }
    
    .achievements-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .contact-info-center {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .info-item {
        padding: 1rem;
    }
    
    .info-details p {
        font-size: 0.85rem;
        white-space: normal;
        overflow: visible;
        text-overflow: unset;
    }
    
    .social-links-center {
        flex-direction: column;
        gap: 1rem;
    }
    
    .testimonial-card {
        padding: 1.5rem;
    }
    
    .testimonial-controls {
        gap: 1rem;
    }
    
    .testimonial-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(10, 14, 26, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
        z-index: 999;
        border-right: 1px solid var(--border-color);
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-links li {
        margin: 1.5rem 0;
    }
    
    .nav-links a {
        font-size: 1.2rem;
        padding: 1rem 2rem;
        display: block;
        text-align: center;
    }
    
    .burger {
        display: block;
        cursor: pointer;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .tagline {
        font-size: 1.1rem;
    }
    
    .hero-badges {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }
    
    .badge {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }
}

/* Burger Menu */
.burger {
    display: none;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0.5rem;
    z-index: 1001;
    order: 1;
}

.burger span {
    display: block;
    width: 25px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--neon-blue));
    margin: 5px;
    transition: var(--transition);
    box-shadow: 0 0 5px rgba(0, 212, 255, 0.3);
}

.toggle .line1 {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.toggle .line2 {
    opacity: 0;
}

.toggle .line3 {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, var(--primary-color), var(--neon-blue));
    color: var(--background);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--glow);
    border: 1px solid var(--primary-color);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: linear-gradient(45deg, var(--neon-blue), var(--primary-color));
    transform: translateY(-3px);
    box-shadow: var(--glow-hover);
}

/* Testimonials Section */
.testimonial-carousel {
    max-width: 700px;
    margin: 3rem auto 0;
    position: relative;
}

.testimonial-wrapper {
    overflow: hidden;
    border-radius: 20px;
    position: relative;
}

.testimonial-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
    width: 200%;
}

.testimonial-card {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition);
    width: 50%;
    flex-shrink: 0;
    opacity: 0.7;
    transform: scale(0.95);
}

.testimonial-card.active {
    opacity: 1;
    transform: scale(1);
}

.testimonial-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--glow-hover);
}

.quote-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    opacity: 0.3;
}

.testimonial-content p {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 2rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
}

.author-info h4 {
    color: var(--primary-color);
    margin-bottom: 0.3rem;
    font-size: 1.1rem;
}

/* Testimonial Controls */
.testimonial-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
}

.testimonial-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--primary-color);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.2rem;
}

.testimonial-btn:hover {
    background: var(--primary-color);
    color: var(--dark-bg);
    transform: scale(1.1);
    box-shadow: var(--glow-hover);
}

.testimonial-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.testimonial-indicators {
    display: flex;
    gap: 0.8rem;
    align-items: center;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.indicator.active {
    background: var(--primary-color);
    transform: scale(1.2);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

.indicator:hover {
    background: var(--primary-color);
    transform: scale(1.1);
}

.author-info span {
    color: var(--light-text);
    font-size: 0.9rem;
}

/* Education Section */
.education-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.education-item {
    display: flex;
    gap: 2rem;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.education-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--glow);
    transform: translateY(-5px);
}

.education-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--neon-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    flex-shrink: 0;
    box-shadow: var(--glow);
}

.education-icon i {
    font-size: 1.5rem;
    color: white;
}

.education-details h3 {
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.education-details h4 {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.education-date {
    color: var(--light-text);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.education-description {
    color: var(--light-text);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.education-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.skill-tag {
    background: var(--primary-color);
    color: var(--background);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.certifications-preview {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 10px;
    padding: 1rem;
}

.certifications-preview h4 {
    color: var(--primary-color);
    margin-bottom: 0.8rem;
}

.certifications-preview ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.certifications-preview li {
    color: var(--light-text);
    padding: 0.3rem 0;
    border-bottom: 1px solid rgba(0, 212, 255, 0.2);
}

.certifications-preview li:last-child {
    border-bottom: none;
}

.languages-section {
    background: var(--card-bg);
    border-radius: 15px;
    border: 1px solid var(--border-color);
    padding: 2rem;
    transition: var(--transition);
}

.languages-section:hover {
    border-color: var(--primary-color);
    box-shadow: var(--glow);
    transform: translateY(-5px);
}

.languages-section h3 {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    text-align: center;
}

.language-item {
    margin-bottom: 1.5rem;
}

.language-item:last-child {
    margin-bottom: 0;
}

.language-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.language-name {
    color: var(--text-color);
    font-weight: 500;
}

.language-level {
    color: var(--light-text);
    font-size: 0.9rem;
}

.language-bar {
    height: 8px;
    background: var(--dark-bg);
    border-radius: 4px;
    overflow: hidden;
}

.language-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--neon-blue));
    border-radius: 4px;
    transition: width 0.8s ease;
}

/* Media queries pour très petits écrans */
@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
    
    section {
        padding: 3rem 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .tagline {
        font-size: 1rem;
    }
    
    .typing-container {
        font-size: 0.8rem;
    }
    
    .cta-button {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .project-card, .achievement-card {
        padding: 1rem;
    }
    
    .project-details ul, .experience-tasks ul {
        padding-left: 1rem;
    }
    
    .project-details li, .experience-tasks li {
        font-size: 0.85rem;
        margin-bottom: 0.3rem;
    }
    
    .tech-tag, .exp-skill {
        font-size: 0.7rem;
        padding: 0.2rem 0.5rem;
    }
    
    .education-item {
        padding: 1rem;
        flex-direction: column;
        text-align: center;
    }
    
    .education-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
        margin: 0 auto 1rem;
    }
    
    .testimonial-card {
        padding: 1rem;
    }
    
    .testimonial-content p {
        font-size: 1rem;
    }
    
    .contact-info-center {
        gap: 1rem;
    }
    
    .info-item {
        padding: 0.75rem;
    }
    
    .info-item i {
        font-size: 1.2rem;
    }
    
    .info-details h4 {
        font-size: 0.9rem;
    }
    
    .info-details p {
        font-size: 0.8rem;
    }
}

/* Timeline Styles */
.timeline {
    padding: 80px 0;
    background: var(--background);
    position: relative;
}

.timeline h2 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 2.5rem;
    text-shadow: var(--glow);
}

.section-subtitle {
    text-align: center;
    color: var(--light-text);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.timeline-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 0;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    transform: translateX(-50%);
    box-shadow: var(--glow);
}

.timeline-item {
    display: flex;
    margin-bottom: 4rem;
    position: relative;
}


.timeline-content:hover {
    border: 2px solid var(--primary-color);
    box-shadow: var(--glow-hover);
    transform: translateY(-5px);
}

.timeline-item:hover .timeline-icon {
    transform: scale(1.1);
    box-shadow: 0 0 25px rgba(0, 212, 255, 0.6);
}

.timeline-item:hover .timeline-date .year {
    color: var(--neon-blue);
    text-shadow: 0 0 15px rgba(0, 255, 255, 0.8);
}

.timeline-item:hover .badge {
    transform: scale(1.05);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.4);
}

.timeline-date {
    flex: 0 0 200px;
    text-align: right;
    padding-right: 2rem;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: center;
}

.timeline-item:nth-child(even) .timeline-date {
    order: 2;
    text-align: left;
    padding-left: 2rem;
    padding-right: 0;
    align-items: flex-start;
}

.timeline-date .year {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-shadow: var(--glow);
    transition: all 0.3s ease;
}

.badge {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-top: 0.5rem;
    text-transform: uppercase;
    transition: all 0.3s ease;
}

.current-badge {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--background);
    box-shadow: var(--glow);
}

.formation-badge {
    background: linear-gradient(135deg, var(--accent-color), #ff8c42);
    color: white;
}

.timeline-content {
    flex: 1;
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    margin-left: 2rem;
    position: relative;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 0;
    margin-right: 2rem;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -15px;
    width: 0;
    height: 0;
    border: 15px solid transparent;
    border-right-color: var(--card-bg);
    transform: translateY(-50%);
}

.timeline-item:nth-child(even) .timeline-content::before {
    left: auto;
    right: -15px;
    border-right-color: transparent;
    border-left-color: var(--card-bg);
}

.timeline-icon {
    position: absolute;
    right: 1rem;
    top: 1rem;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--background);
    font-size: 1rem;
    box-shadow: var(--glow);
    z-index: 2;
    border: 2px solid var(--background);
    transition: all 0.3s ease;
}

.timeline-details h3 {
    color: var(--primary-color);
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

.timeline-details h4 {
    color: var(--accent-color);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.timeline-period {
    color: var(--light-text);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    font-style: italic;
}

.timeline-description {
    color: var(--text-color);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.timeline-tasks h5 {
    color: var(--primary-color);
    margin-bottom: 0.8rem;
    font-size: 1rem;
}

.timeline-tasks ul {
    list-style: none;
    padding: 0;
}

.timeline-tasks li {
    color: var(--text-color);
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.timeline-tasks li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-size: 0.8rem;
}

.timeline-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.additional-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 4rem;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 15px;
    border: 1px solid var(--border-color);
    position: relative;
    z-index: 1;
}


.language-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    margin-bottom: 0.8rem;
    background: var(--dark-bg);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.language-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.2);
}

.language-name {
    color: var(--text-color);
    font-weight: 600;
    font-size: 1.1rem;
}

.language-level {
    color: var(--primary-color);
    font-size: 1rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}


.cert-name {
    color: var(--text-color);
    font-weight: 600;
}

.cert-status {
    color: var(--accent-color);
    font-size: 0.9rem;
    font-style: italic;
}

/* Timeline Responsive */
@media (max-width: 768px) {
    .timeline-line {
        left: 30px;
    }
    
    .timeline-item {
        flex-direction: column;
    }
    
    .timeline-date {
        flex: none;
        text-align: left;
        padding: 0 0 1rem 60px;
    }
    
    .timeline-item:nth-child(even) .timeline-date {
        order: 0;
        text-align: left;
        padding: 0 0 1rem 60px;
    }
    
    .timeline-content {
        margin-left: 60px;
        margin-right: 0;
    }
    
    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 60px;
        margin-right: 0;
    }
    
    .timeline-content::before {
        left: -15px;
        border-right-color: var(--card-bg);
        border-left-color: transparent;
    }
    
    .timeline-item:nth-child(even) .timeline-content::before {
        left: -15px;
        right: auto;
        border-right-color: var(--card-bg);
        border-left-color: transparent;
    }
    
    .timeline-icon {
        right: 1rem;
        top: 1rem;
    }
    
    .additional-info {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Timeline Animations */
.timeline-item {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

.timeline-item.animate {
    opacity: 1;
    transform: translateY(0);
}

.timeline-item:nth-child(even).animate {
    animation: slideInRight 0.8s ease forwards;
}

.timeline-item:nth-child(odd).animate {
    animation: slideInLeft 0.8s ease forwards;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.additional-info {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.additional-info.animate {
    opacity: 1;
    transform: translateY(0);
}

/* Skills Extra Section (Langues & Certifications) */
.skills-extra {
    padding: 60px 0;
    background: var(--dark-bg);
}

.languages-certifications-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    max-width: 800px;
    margin: 0 auto;
}

/* About Section */
.about {
    padding: 80px 0;
    background: var(--dark-bg);
}


.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
    text-align: center;
    justify-content: center;
}

.card-header i {
    font-size: 2rem;
    color: var(--primary-color);
}

.card-header h2 {
    color: var(--primary-color);
    margin: 0;
    font-size: 1.8rem;
    text-shadow: var(--glow);
}

.languages-section,
.certifications-section {
    margin-bottom: 2rem;
}

.languages-section h3,
.certifications-section h3 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    text-align: center;
    position: relative;
    padding: 0.8rem 0;
}

.languages-section h3::after,
.certifications-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.certification-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--dark-bg);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.certification-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.2);
}

.certification-item i {
    color: var(--accent-color);
    font-size: 1.2rem;
}

.cert-details {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.cert-name {
    color: var(--text-color);
    font-weight: 600;
    font-size: 1rem;
}

.cert-status {
    color: var(--accent-color);
    font-size: 0.9rem;
    font-style: italic;
}

@media (max-width: 768px) {
    .languages-certifications-card {
        padding: 1.5rem;
    }
    
    .card-header h2 {
        font-size: 1.4rem;
    }
    
    .languages-section h3,
    .certifications-section h3 {
        font-size: 1.1rem;
    }
}

@media (max-width: 320px) {
    .container {
        padding: 0 0.5rem;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero-badges {
        flex-direction: column;
        align-items: center;
    }
    
    .badge {
        font-size: 0.75rem;
        padding: 0.3rem 0.6rem;
    }
    
    .project-card, .achievement-card {
        padding: 0.75rem;
    }
    
    .experience-content {
        padding: 1rem;
    }
    
    .testimonial-card {
        padding: 0.75rem;
    }
    
    .testimonial-controls {
        gap: 0.5rem;
        margin-top: 1rem;
    }
    
    .testimonial-btn {
        width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }
    
    .testimonial-content p {
        font-size: 0.9rem;
        line-height: 1.6;
    }
}