/* ==================== Variables ==================== */
:root {
    /* Couleurs principales */
    --color-bg-dark: #1a1a2e;
    --color-bg-secondary: #16213e;
    --color-bg-card: #0f3460;
    --color-text-primary: #eaeaea;
    --color-text-secondary: #b8b8d1;
    --color-accent: #a78bfa;
    --color-accent-glow: rgba(167, 139, 250, 0.3);
    --color-accent-light: #c4b5fd;
    
    /* Espacements */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Ombres */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px var(--color-accent-glow);
    --shadow-glow-strong: 0 0 40px var(--color-accent-glow);
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--color-bg-dark);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    
	
  height: 100%;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
}

/* ==================== Navigation ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(157, 0, 255, 0.1);
    padding: 1rem 0;
    animation: slideDown 0.5s ease;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
    text-shadow: var(--shadow-glow);
}

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

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-normal);
    position: relative;
}

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

.nav-link:hover {
    color: var(--color-accent);
}

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

/* ==================== Hero Section ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: var(--spacing-lg) var(--spacing-md);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
    opacity: 0.3;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.3;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.5;
    }
}

.hero-content {
    max-width: 1200px;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.hero-text {
    flex: 1;
    animation: fadeInLeft 1s ease;
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.greeting {
    display: block;
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.name {
    display: block;
    font-size: 4rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    font-size: 1.8rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-normal);
    display: inline-block;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    background: var(--color-accent-light);
    box-shadow: var(--shadow-glow-strong);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: var(--color-accent);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 1s ease;
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-circle {
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, #e0b0ff 0%, #a78bfa 30%, #6d28d9 70%, #4c1d95 100%);
    box-shadow: 
        0 0 60px rgba(167, 139, 250, 0.8),
        0 0 100px rgba(109, 40, 217, 0.4),
        inset -20px -20px 60px rgba(0, 0, 0, 0.4),
        inset 20px 20px 40px rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: visible;
}

.hero-circle::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 100px;
    background: linear-gradient(to right, rgba(167, 139, 250, 0.2), rgba(196, 181, 253, 0.5), rgba(167, 139, 250, 0.2));
    border: 2px solid rgba(196, 181, 253, 0.3);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotateX(70deg) rotateZ(0deg);
    box-shadow: 0 0 30px rgba(167, 139, 250, 0.3);
    animation: rotateRings 7s linear infinite;
    pointer-events: none;
}

.hero-circle-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
}

.ai-icon-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    padding: 2rem;
}

.ai-icon {
    width: 60px;
    height: 60px;
    color: var(--color-text-primary);
    opacity: 0.9;
    transition: var(--transition-normal);
    filter: drop-shadow(0 0 10px var(--color-accent-glow));
    animation: iconFloat 3s ease-in-out infinite;
}

.ai-icon:nth-child(1) { animation-delay: 0s; }
.ai-icon:nth-child(2) { animation-delay: 0.3s; }
.ai-icon:nth-child(3) { animation-delay: 0.6s; }
.ai-icon:nth-child(4) { animation-delay: 0.9s; }
.ai-icon:nth-child(5) { animation-delay: 1.2s; }
.ai-icon:nth-child(6) { animation-delay: 1.5s; }

@keyframes iconFloat {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-10px) scale(1.05);
    }
}

@keyframes rotateRings {
    0%, 100% {
        transform: translate(-50%, -50%) rotateX(75deg) rotateZ(-25deg);
    }
    50% {
        transform: translate(-50%, -50%) rotateX(75deg) rotateZ(25deg);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    animation: fadeIn 1s ease 1s both;
}

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

.scroll-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-accent) 0%, transparent 100%);
    animation: scrollAnimation 2s ease-in-out infinite;
}

@keyframes scrollAnimation {
    0%, 100% {
        transform: translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateY(10px);
        opacity: 0.5;
    }
}

/* ==================== Container & Sections ==================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

section {
    padding: var(--spacing-xl) 0;
    position: relative;
  scroll-snap-align: start;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease;
}

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

.section-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.title-underline {
    width: 80px;
    height: 4px;
    background: var(--color-accent);
    margin: 0 auto;
    border-radius: 2px;
    box-shadow: var(--shadow-glow);
}

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

.about-content {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
    animation: fadeInUp 0.8s ease;
}

.about-image {
    flex: 0 0 300px;
}

.avatar-container {
    position: relative;
    width: 300px;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.avatar-circle {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-bg-card) 100%);
    box-shadow: var(--shadow-glow-strong);
  overflow: hidden;
  position: relative;
    transition: var(--transition-slow);
}

.avatar-circle img {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%; /* zoom */
  height: 100%;
  opacity: 0.8;
  object-fit: cover; /* remplit bien le cercle */
  transform: translate(-50%, -50%); /* centre parfaitement */
  filter: brightness(1.05) contrast(1.05);
  transition: all 0.5s ease;
}

.avatar-circle:hover img {
  transform: translate(-50%, -50%) scale(1.1); /* léger zoom au survol */
  opacity: 0.95;
}

.avatar-container:hover .avatar-circle {
    transform: scale(1.05);
    box-shadow: 0 0 60px var(--color-accent-glow);
}

.about-text {
    flex: 1;
}

.about-intro {
    font-size: 1.2rem;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about-description {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: var(--spacing-sm);
    background: var(--color-bg-card);
    border-radius: 8px;
    border-left: 3px solid var(--color-accent);
    transition: var(--transition-normal);
}

.info-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-glow);
}

.info-label {
    font-size: 0.9rem;
    color: var(--color-accent);
    font-weight: 600;
}

.info-value {
    font-size: 1rem;
    color: var(--color-text-primary);
}

/* ==================== Skills Section ==================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.skill-card {
    background: var(--color-bg-card);
    padding: var(--spacing-md);
    border-radius: 12px;
    border: 1px solid rgba(157, 0, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    animation: fadeInUp 0.8s ease;
    animation-fill-mode: both;
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(167, 139, 250, 0.1), transparent);
    transition: left 0.6s ease;
    pointer-events: none;
}

.skill-card:nth-child(1) { animation-delay: 0.1s; }
.skill-card:nth-child(2) { animation-delay: 0.2s; }
.skill-card:nth-child(3) { animation-delay: 0.3s; }
.skill-card:nth-child(4) { animation-delay: 0.4s; }
.skill-card:nth-child(5) { animation-delay: 0.5s; }
.skill-card:nth-child(6) { animation-delay: 0.6s; }

.skill-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 0 40px rgba(167, 139, 250, 0.6), var(--shadow-glow-strong);
    border-color: var(--color-accent);
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.05) 0%, rgba(109, 40, 217, 0.05) 100%);
}

.skill-card:hover::before {
    left: 100%;
}

.skill-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent);
    transition: var(--transition-normal);
}

.skill-card:hover .skill-icon {
    transform: scale(1.1);
    filter: drop-shadow(var(--shadow-glow));
}

.skill-icon svg {
    width: 100%;
    height: 100%;
}

.skill-title {
    font-size: 1.5rem;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.skill-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.skill-list li {
    color: var(--color-text-secondary);
    padding-left: 1.5rem;
    position: relative;
}

.skill-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-size: 1.2rem;
}

/* ==================== Projects Section ==================== */
.projects {
    background: var(--color-bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    background: var(--color-bg-card);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(157, 0, 255, 0.1);
    transition: var(--transition-normal);
    animation: fadeInUp 0.8s ease;
    animation-fill-mode: both;
}

.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.2s; }
.project-card:nth-child(3) { animation-delay: 0.3s; }
.project-card:nth-child(4) { animation-delay: 0.4s; }

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

.project-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-bg-dark) 100%);
    position: relative;
    overflow: hidden;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 10, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

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

.project-tag {
    background: var(--color-accent);
    color: var(--color-text-primary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: var(--shadow-glow);
}

.project-content {
    padding: var(--spacing-md);
}

.project-title {
    font-size: 1.5rem;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.project-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

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

.tech-tag {
    background: rgba(157, 0, 255, 0.1);
    color: var(--color-accent);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    border: 1px solid rgba(157, 0, 255, 0.2);
    transition: var(--transition-fast);
}

.tech-tag:hover {
    background: var(--color-accent);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-glow);
}

/* ==================== Contact Section ==================== */
.contact-simple {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    animation: fadeInUp 0.8s ease;
}

.contact-subtitle {
    font-size: 2rem;
    color: var(--color-text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.contact-text {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

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

.social-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: var(--color-bg-card);
    border-radius: 12px;
    color: var(--color-accent);
    text-decoration: none;
    transition: var(--transition-normal);
    border: 2px solid rgba(167, 139, 250, 0.2);
}

.social-link:hover {
    background: var(--color-accent);
    color: var(--color-text-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow-strong);
    border-color: var(--color-accent);
}

.social-link svg {
    width: 24px;
    height: 24px;
}

.social-label {
    font-weight: 600;
    font-size: 1rem;
}

/* ==================== Footer ==================== */
.footer {
    background: var(--color-bg-dark);
    padding: var(--spacing-md) 0;
    text-align: center;
    border-top: 1px solid rgba(157, 0, 255, 0.1);
}

.footer-text {
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
}

.footer-subtext {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

/* ==================== Responsive Design ==================== */
@media (max-width: 968px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .name {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .hero-circle {
        width: 300px;
        height: 300px;
    }
    
    .about-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-circle {
        width: 300px;
        height: 300px;
    }
    
    .ai-icon {
        width: 45px;
        height: 45px;
    }
    
    .ai-icon-grid {
        gap: 1rem;
        padding: 1.5rem;
    }
    
    .nav-menu {
        gap: 1rem;
    }
}

@media (max-width: 640px) {
    .name {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
    
    .hero-circle {
        width: 250px;
        height: 250px;
    }
    
    .ai-icon {
        width: 35px;
        height: 35px;
    }
    
    .ai-icon-grid {
        gap: 0.75rem;
        padding: 1rem;
    }
    
    .avatar-container {
        width: 200px;
        height: 200px;
    }
    
    .social-link {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }
    
    .nav-link {
        font-size: 0.9rem;
    }
}

/* ==================== Animations supplémentaires ==================== */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

/* Effet de chargement */
.loading {
    background: linear-gradient(
        90deg,
        var(--color-bg-card) 0%,
        rgba(157, 0, 255, 0.1) 50%,
        var(--color-bg-card) 100%
    );
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}