/* ========================================
   OPTIMISATIONS DE PERFORMANCE
   ======================================== */

/* Preload fonts pour éviter FOUT */
@import url('https://fonts.googleapis.com/css2?family=Segoe+UI:wght@400;500;600;700&display=swap');

/* Réduction des animations sur connexions lentes */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Optimisation du rendu */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Lazy loading indicator */
img[loading="lazy"] {
    background-color: rgba(254, 254, 255, 0.05);
}

/* Variables CSS */
:root {
    --color-primary: #52F5EB;
    --color-dark: #000F26;
    --color-light: #FEFEFF;
    --color-accent: #75D8FF;
    --color-gradient: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    --transition: all 0.3s ease;
    --shadow: 0 10px 30px rgba(0, 15, 38, 0.3);
    --shadow-hover: 0 15px 40px rgba(82, 245, 235, 0.4);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--color-dark);
    color: var(--color-light);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 15, 38, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    z-index: 1000;
    border-bottom: 2px solid rgba(82, 245, 235, 0.1);
}

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

.logo-text {
    font-size: 1.5rem;
    font-weight: bold;
    background: var(--color-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-links a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-gradient);
    transition: var(--transition);
}

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

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

.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 3px;
    background: var(--color-primary);
    margin: 5px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(82, 245, 235, 0.1), transparent);
    top: -250px;
    right: -250px;
    border-radius: 50%;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.highlight {
    background: var(--color-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.hero-description {
    font-size: 1.1rem;
    color: rgba(254, 254, 255, 0.8);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.8rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--color-gradient);
    color: var(--color-dark);
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: var(--color-dark);
    transform: translateY(-3px);
}

/* Code Window */
.code-window {
    background: rgba(254, 254, 255, 0.05);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid rgba(82, 245, 235, 0.2);
}

.window-header {
    background: rgba(0, 15, 38, 0.8);
    padding: 0.8rem;
    display: flex;
    gap: 0.5rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red {
    background: #ff5f56;
}

.dot.yellow {
    background: #ffbd2e;
}

.dot.green {
    background: #27c93f;
}

.code-content {
    padding: 1.5rem;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.code-text {
    color: var(--color-light);
}

.keyword {
    color: var(--color-accent);
}

.function {
    color: var(--color-primary);
}

.string {
    color: #f97583;
}

/* Sections */
section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: var(--color-gradient);
    border-radius: 2px;
}

/* À propos Section */
.about {
    background: rgba(254, 254, 255, 0.02);
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: rgba(254, 254, 255, 0.8);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: rgba(82, 245, 235, 0.05);
    border-radius: 15px;
    border: 1px solid rgba(82, 245, 235, 0.2);
    transition: var(--transition);
}

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

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: bold;
    background: var(--color-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    margin-top: 0.5rem;
    color: rgba(254, 254, 255, 0.7);
}

/* Compétences Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.skill-card {
    background: rgba(254, 254, 255, 0.05);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(82, 245, 235, 0.2);
    transition: var(--transition);
}

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

.skill-icon {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.skill-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-accent);
}

.skill-list {
    list-style: none;
}

.skill-list li {
    padding: 0.5rem 0;
    color: rgba(254, 254, 255, 0.8);
    position: relative;
    padding-left: 1.5rem;
}

.skill-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

/* Projets Section */
.projects {
    background: rgba(254, 254, 255, 0.02);
}

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

.project-card {
    background: rgba(254, 254, 255, 0.05);
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid rgba(82, 245, 235, 0.2);
    transition: var(--transition);
}

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

.project-image {
    height: 200px;
    background: linear-gradient(135deg, rgba(82, 245, 235, 0.2), rgba(117, 216, 255, 0.2));
    position: relative;
    overflow: hidden;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 15, 38, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    opacity: 0;
    transition: var(--transition);
}

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

.project-link {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--color-primary);
    color: var(--color-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
}

.project-link:hover {
    transform: scale(1.1);
    background: var(--color-accent);
}

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--color-accent);
}

.project-content p {
    color: rgba(254, 254, 255, 0.7);
    margin-bottom: 1rem;
}

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

.tag {
    background: rgba(82, 245, 235, 0.1);
    color: var(--color-primary);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid rgba(82, 245, 235, 0.3);
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--color-accent);
}

.contact-info p {
    color: rgba(254, 254, 255, 0.8);
    margin-bottom: 2rem;
}

.contact-details {
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    color: rgba(254, 254, 255, 0.8);
}

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

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(82, 245, 235, 0.1);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    border: 1px solid rgba(82, 245, 235, 0.3);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--color-primary);
    color: var(--color-dark);
    transform: translateY(-5px);
}

.contact-form {
    background: rgba(254, 254, 255, 0.05);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(82, 245, 235, 0.2);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    background: rgba(0, 15, 38, 0.5);
    border: 1px solid rgba(82, 245, 235, 0.3);
    border-radius: 8px;
    color: var(--color-light);
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 10px rgba(82, 245, 235, 0.3);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(254, 254, 255, 0.5);
}

.contact-form .btn {
    width: 100%;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.form-status {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    display: none;
}

.form-status.success {
    background: rgba(39, 201, 63, 0.2);
    border: 1px solid #27c93f;
    color: #27c93f;
    display: block;
    animation: slideIn 0.3s ease-out;
}

.form-status.error {
    background: rgba(255, 95, 86, 0.2);
    border: 1px solid #ff5f56;
    color: #ff5f56;
    display: block;
    animation: slideIn 0.3s ease-out;
}

.form-status.loading {
    background: rgba(82, 245, 235, 0.2);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    display: block;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Footer */
.footer {
    background: rgba(0, 15, 38, 0.8);
    padding: 2rem 0;
    text-align: center;
    border-top: 2px solid rgba(82, 245, 235, 0.1);
}

.footer p {
    color: rgba(254, 254, 255, 0.7);
}

.heart {
    color: var(--color-primary);
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

/* Responsive Design */
@media screen and (max-width: 968px) {
    .nav-links {
        position: fixed;
        right: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(0, 15, 38, 0.98);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        padding: 2rem;
        border-top: 2px solid rgba(82, 245, 235, 0.2);
    }

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

    .burger {
        display: block;
    }

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

    .burger.active .line2 {
        opacity: 0;
    }

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

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }

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

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

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

@media screen and (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .code-content {
        font-size: 0.7rem;
        padding: 1rem;
    }
}

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

.hero-content,
.hero-image {
    animation: fadeInUp 1s ease-out;
}

/* Scroll Animation */
section {
    opacity: 0;
    animation: fadeInUp 1s ease-out forwards;
    animation-timeline: view();
    animation-range: entry 0% cover 30%;
}