:root {
    /* Colors */
    --primary-color: #6366f1;
    --secondary-color: #ec4899;
    --tertiary-color: #0f172a;
    --background-color: #ffffff;
    --dark-background: #0f172a;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --light-bg: #f8fafc;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Typography */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-slow: all 0.6s ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Container */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 600;
}

h2 {
    font-size: var(--font-size-2xl);
}

h3 {
    font-size: var(--font-size-xl);
}

p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

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

/* Navigation Bar */
.navbar {
    background: var(--background-color);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.logo-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--text-primary);
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

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

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

.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translateY(10px);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translateY(-10px);
}

/* Hero Section */
.hero {
    margin-top: 80px;
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    text-align: center;
    animation: fadeInUp 0.8s ease;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 3.5rem);
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    display: inline-block;
    font-size: var(--font-size-base);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
}

/* Section Styles */
section {
    padding: var(--spacing-2xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    color: var(--text-primary);
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    margin: var(--spacing-md) auto 0;
    border-radius: 2px;
}

/* About Section */
.about {
    background: var(--light-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about-image {
    position: relative;
    overflow: hidden;
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    animation: floatProfile 2s ease-in-out infinite;
}

@keyframes floatProfile {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-12px);
    }

    100% {
        transform: translateY(0);
    }
}

.profile-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    transition: var(--transition);
}

.about-image:hover .profile-img {
    transform: scale(1.05);
}

.about-text {
    font-size: var(--font-size-base);
}

.about-text p {
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.about-text .btn {
    margin-top: var(--spacing-md);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
}

.stat {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.stat:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

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

/* Projects Section */
.projects {
    background: white;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.project-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-slow);
    display: flex;
    flex-direction: column;
}

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

.project-image {
    width: 100%;
    height: 220px;
    background: linear-gradient(135deg, var(--light-bg), #e0e7ff);
    overflow: hidden;
    position: relative;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #e0e7ff, #e9d5ff);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1rem;
}

.project-info {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.project-title {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.project-description {
    flex: 1;
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.project-tags {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.tag {
    display: inline-block;
    background: var(--light-bg);
    color: var(--primary-color);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-weight: 500;
}

.project-link {
    color: var(--primary-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.project-link:hover {
    gap: var(--spacing-md);
}

/* Skills Section */
.skills {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

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

.skill-category {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.skill-category h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

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

.skill-category li {
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: var(--spacing-lg);
}

.skill-category li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

/* Contact Section */
.contact {
    background: white;
}

.contact-subtitle {
    text-align: center;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
}

.contact-content {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 var(--spacing-md);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.contact-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.contact-item {
    width: 100%;
    padding: var(--spacing-lg);
    background: var(--light-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

.contact-item h4 {
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.contact-item p {
    color: var(--text-secondary);
}

.contact-item a {
    color: inherit;
    font-weight: 500;
    transition: var(--transition);
}

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

.social-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

.social-link,
.btn.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #ffffff;
    border: none;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    font-weight: 600;
    text-decoration: none;
}

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

@media (max-width: 768px) {
    .contact-content {
        padding: 0;
    }

    .contact-item {
        padding: var(--spacing-md);
    }
}

/* Footer */
.footer {
    background: var(--dark-background);
    color: white;
    padding: var(--spacing-lg) 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.project-card {
    animation: slideIn 0.6s ease;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .nav-menu {
        position: absolute;
        left: 0;
        top: 100%;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        max-height: 500px;
    }
    
    .nav-menu li {
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-link {
        display: block;
        padding: var(--spacing-md);
    }
    
    .nav-link::after {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    section {
        padding: var(--spacing-xl) 0;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-md: 1rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 2.5rem;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
}
/* ===== HERO ===== */
.hero {
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    background: white;
}

.hero .container {
    position: relative;
    z-index: 20;
}

/* BASE commune des vagues */
.hero::before,
.hero::after,
.wave-extra,
.wave-front {
    content: "";
    position: absolute;
    left: -20%;
    width: 140%;
    border-radius: 50% 50% 0 0;
    bottom: 0;
    height: 0%; /* départ à 0% */
    animation: waveRise 2s ease-in-out infinite;
}

/* ===== VAGUE 1 (arrière) ===== */
.hero::before {
    background: rgba(210, 240, 255, 0.6);
    z-index: 1;
    animation-delay: 0s;
}

/* ===== VAGUE 2 ===== */
.hero::after {
    background: rgba(170, 225, 250, 0.7);
    z-index: 2;
    animation-delay: 0.5s;
}

/* ===== VAGUE 3 ===== */
.wave-extra {
    background: rgba(120, 210, 245, 0.8);
    z-index: 3;
    animation-delay: 1s;
}

/* ===== VAGUE 4 (avant) ===== */
.wave-front {
    background: rgba(70, 190, 240, 0.9);
    z-index: 4;
    animation-delay: 1.5s;
}

/* ===== ANIMATION PRINCIPALE ===== */
@keyframes waveRise {
    0% {
        height: 0%;
        opacity: 0;
    }
    50% {
        height: 45%;
        opacity: 1;
    }
    100% {
        height: 0%;
        opacity: 0;
    }
}