/* ===== Variables CSS ===== */
:root {

    /* Couleurs principales (par défaut)
    --primary-color: #ff6b6b;
    --secondary-color: #4ecdc4;
    --accent-color: #ffe66d;
    */

    /* Couleurs principales (custom) */
    --primary-color: #ff6b6b;
    --secondary-color: #4ecdc4;
    --accent-color: #ffe66d;

    /* Dark Mode (par défaut) */
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #707070;
    --border-color: #333333;
    --shadow: rgba(0, 0, 0, 0.5);
    --overlay: rgba(0, 0, 0, 0.7);
    
    /* Transitions */
    --transition-speed: 0.3s;
    --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 50%;
}

/* Light Mode */
body.light-mode {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #e0e0e0;
    --text-primary: #1a1a1a;
    --text-secondary: #4a4a4a;
    --text-muted: #8a8a8a;
    --border-color: #d0d0d0;
    --shadow: rgba(0, 0, 0, 0.1);
    --overlay: rgba(0, 0, 0, 0.5);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-speed) var(--transition-smooth),
                color var(--transition-speed) var(--transition-smooth);
}

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

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

ul {
    list-style: none;
}

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

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

/* ===== Header & Navigation ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--bg-secondary);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px var(--shadow);
    z-index: 1000;
    transition: background-color var(--transition-speed) var(--transition-smooth);
}

.navbar {
    padding: var(--spacing-sm) 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-speed) var(--transition-smooth);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: transform var(--transition-speed) var(--transition-smooth);
}

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

.nav-link:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.theme-toggle {
    width: 45px;
    height: 45px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all var(--transition-speed) var(--transition-smooth);
}

.theme-toggle:hover {
    transform: rotate(180deg) scale(1.1);
    box-shadow: 0 5px 20px var(--shadow);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 30px;
    height: 30px;
    justify-content: center;
}

.mobile-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-speed) var(--transition-smooth);
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(255, 107, 107, 0.3) 0%, 
        rgba(78, 205, 196, 0.3) 50%,
        rgba(255, 230, 109, 0.3) 100%);
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 0.5; }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: var(--spacing-md);
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, #ffffff, #f0f0f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    margin-bottom: var(--spacing-sm);
    color: white;
    font-weight: 300;
    animation: fadeInUp 1s ease 0.2s backwards;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.3rem);
    margin-bottom: var(--spacing-md);
    color: rgba(255, 255, 255, 0.9);
    animation: fadeInUp 1s ease 0.4s backwards;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.6s backwards;
}

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

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-20px);
    }
    60% {
        transform: translateX(-50%) translateY(-10px);
    }
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-speed) var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #ff8787);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(255, 107, 107, 0.6);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-2px);
}

.btn-instagram {
    background: linear-gradient(135deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(188, 24, 136, 0.4);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn-instagram:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(188, 24, 136, 0.6);
}

/* ===== Sections ===== */
section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

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

.about-image {
    position: relative;
}

.image-placeholder {
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
    color: var(--text-muted);
    box-shadow: 0 10px 40px var(--shadow);
    transition: transform var(--transition-speed) var(--transition-smooth);
}

.image-placeholder:hover {
    transform: scale(1.05) rotate(2deg);
}

.about-text p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
}

.specialties {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.specialty-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    transition: all var(--transition-speed) var(--transition-smooth);
}

.specialty-item:hover {
    transform: translateX(10px);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.specialty-item i {
    font-size: 1.5rem;
}

/* ===== Portfolio Section ===== */
.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-speed) var(--transition-smooth);
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--shadow);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.portfolio-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--transition-speed) var(--transition-smooth);
}

.portfolio-item:hover {
    transform: translateY(-10px);
}

.portfolio-image {
    aspect-ratio: 4/3;
}

.portfolio-image .image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--text-muted);
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, var(--overlay), transparent);
    padding: var(--spacing-md);
    transform: translateY(100%);
    transition: transform var(--transition-speed) var(--transition-smooth);
}

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

.portfolio-overlay h3 {
    color: white;
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xs);
}

.portfolio-overlay p {
    color: rgba(255, 255, 255, 0.8);
}

.portfolio-item.hidden {
    display: none;
}

/* Instagram CTA */
.instagram-cta {
    text-align: center;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-lg);
}

.instagram-cta h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

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

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

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

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

.contact-item {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    transition: all var(--transition-speed) var(--transition-smooth);
}

.contact-item:hover {
    transform: translateX(10px);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: color var(--transition-speed) var(--transition-smooth);
}

.contact-item:hover i {
    color: white;
}

.contact-item h4 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.1rem;
}

.contact-item a {
    color: var(--text-secondary);
    transition: color var(--transition-speed) var(--transition-smooth);
}

.contact-item:hover a {
    color: white;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.social-links a {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    transition: all var(--transition-speed) var(--transition-smooth);
}

.social-links a:hover {
    transform: translateY(-5px) rotate(360deg);
    box-shadow: 0 5px 20px var(--shadow);
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea {
    padding: var(--spacing-sm);
    background-color: var(--bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-speed) var(--transition-smooth);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background-color: var(--bg-secondary);
}

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

/* ===== Footer ===== */
.footer {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    text-align: center;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.footer-logo i {
    font-size: 1.8rem;
}

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

/* ===== Responsive Design ===== */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: var(--bg-secondary);
        width: 100%;
        padding: var(--spacing-md);
        box-shadow: 0 10px 30px var(--shadow);
        transition: left var(--transition-speed) var(--transition-smooth);
    }

    .nav-menu.active {
        left: 0;
    }

    .mobile-toggle {
        display: flex;
    }

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

    .portfolio-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }

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

@media (max-width: 640px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
    }

    .portfolio-filters {
        flex-direction: column;
    }

    .filter-btn {
        width: 100%;
    }

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

    .social-links {
        justify-content: center;
    }
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.fade-in {
    animation: fadeIn 0.6s ease;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
}