/* =================================================================
   PORTFOLIO GABRIEL DUPREY-MEGHERBI - CSS UNIFIÉ
   ================================================================= */

/* ==================== IMPORTS & VARIABLES ==================== */
@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Couleurs */
    --primary: #5271FF;
    --primary-dark: #3c5dff;
    --bg-dark: #000000;
    --bg-card: rgba(255, 255, 255, 0.05);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #aaaaaa;
    --border: rgba(255, 255, 255, 0.1);
    --error: #ff5252;
    --success: #4caf50;

    /* Espacements */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 60px;
    --spacing-2xl: 80px;
    --spacing-3xl: 100px;

    /* Bordures */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 50%;

    /* 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, 0.2);
    --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.4);
    --shadow-primary: 0 5px 15px rgba(82, 113, 255, 0.3);

    /* Tailles de police */
    --font-xs: 14px;
    --font-sm: 16px;
    --font-md: 18px;
    --font-lg: 20px;
    --font-xl: 24px;
    --font-2xl: 32px;
    --font-3xl: 48px;
    --font-4xl: 60px;
    --font-5xl: 70px;
}

/* ==================== RESET & BASE ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

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

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

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

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

.section-title {
    font-size: var(--font-2xl);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background-color: var(--primary);
}

.btn {
    display: inline-block;
    background-color: var(--primary);
    color: var(--text-primary);
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all var(--transition-normal);
    border: 2px solid var(--primary);
}

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

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

.btn-outline:hover {
    background-color: var(--primary);
    color: var(--text-primary);
}

/* ==================== HEADER ==================== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-md) 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: all var(--transition-normal);
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
}

header.scrolled {
    padding: var(--spacing-sm) 5%;
    background-color: rgba(0, 0, 0, 0.95);
    box-shadow: var(--shadow-md);
}

.logo h1 {
    font-size: var(--font-xl);
    font-weight: 700;
    letter-spacing: 1px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

nav ul li a {
    position: relative;
    font-weight: 500;
    padding: 5px 0;
    transition: color var(--transition-normal);
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: width var(--transition-normal);
}

nav ul li a:hover::after,
nav ul li a.active::after {
    width: 100%;
}

/* Sélecteur de langue */
.lang-selector {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 20px;
}

.lang-selector a {
    font-size: 14px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all var(--transition-normal);
}

.lang-selector a.active {
    background-color: var(--primary);
    color: var(--text-primary);
}

.lang-selector a:hover {
    background-color: var(--bg-card);
}

.lang-selector .separator {
    color: var(--text-secondary);
    font-size: 12px;
}

/* Menu mobile */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all var(--transition-normal);
}

/* ==================== HERO SECTION ==================== */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: 0 5%;
    margin-top: 80px;
    overflow: hidden;
}

.video-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.video-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
            to bottom,
            rgba(0, 0, 0, 1) 0%,
            rgba(0, 0, 0, 0.2) 40%,
            rgba(0, 0, 0, 0.2) 60%,
            rgba(0, 0, 0, 1) 100%
    );
}

.video-bg video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content {
    max-width: 900px;
    position: relative;
    z-index: 1;
}

.hero h2 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: var(--font-5xl);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero p {
    font-size: var(--font-lg);
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
}

/* Hero simple (sans vidéo) */
.hero-simple {
    min-height: 50vh;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.9) 0%, rgba(82, 113, 255, 0.1) 100%);
}

.hero-simple h2 {
    font-size: var(--font-3xl);
}

/* ==================== SECTIONS ==================== */
section {
    padding: var(--spacing-3xl) 0;
}

section:nth-child(even) {
    background-color: rgba(255, 255, 255, 0.02);
}

/* ==================== CARDS ==================== */
.card {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.card:hover {
    background-color: var(--bg-card-hover);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-img {
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.card:hover .card-img img {
    transform: scale(1.1);
}

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

.card-title {
    font-size: var(--font-lg);
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

.card-text {
    color: var(--text-secondary);
    font-size: var(--font-sm);
}

/* ==================== GRIDS ==================== */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ==================== GALERIE ==================== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-sm);
    padding: var(--spacing-md) 0;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
    cursor: pointer;
    aspect-ratio: 1;
    background-color: var(--bg-card);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: 1;
}

.gallery-item:hover::before {
    opacity: 1;
}

.gallery-item::after {
    content: '\f065';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    color: var(--text-primary);
    font-size: var(--font-lg);
    background-color: rgba(82, 113, 255, 0.9);
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-normal);
    z-index: 2;
}

.gallery-item:hover::after {
    transform: translate(-50%, -50%) scale(1);
}

/* ==================== PROJETS ==================== */
.project-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
    align-items: center;
}

.project-detail:nth-child(even) {
    direction: rtl;
}

.project-detail:nth-child(even) > * {
    direction: ltr;
}

.project-img {
    width: 100%;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
}

.project-img img {
    width: 100%;
    height: auto;
    object-fit: contain;
    transition: transform var(--transition-slow);
}

.project-img:hover img {
    transform: scale(1.05);
}

.project-text h3 {
    font-size: var(--font-2xl);
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.project-text p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.project-meta {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    flex-direction: column;
}

.meta-label {
    font-size: var(--font-xs);
    color: var(--primary);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.meta-value {
    font-size: var(--font-sm);
    color: var(--text-primary);
    font-weight: 500;
}

/* ==================== CV PAGE ==================== */
.cv-header {
    position: relative;
    height: 60vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
}

.cv-header .cv-bg-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
    filter: brightness(0.7) contrast(1.1); /* Réduit la luminosité */
}

.cv-header::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
            to bottom,
            rgba(0, 0, 0, 1) 0%,
            rgba(0, 0, 0, 0) 30%,
            rgba(0, 0, 0, 0) 70%,
            rgba(0, 0, 0, 1) 100%
    );
    z-index: -1;
}

.cv-header h2,
.cv-header p {
    position: relative;
    z-index: 1;
}

.cv-header h2 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: var(--font-4xl);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
}

.cv-section {
    margin-bottom: var(--spacing-xl);
}

.cv-section-title {
    font-size: var(--font-xl);
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--primary);
}

.about-section,
.contact-section {
    background-color: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

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

.skills-category {
    background-color: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

.skills-category h3 {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-lg);
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.skill-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background-color: rgba(255, 255, 255, 0.08);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    font-size: var(--font-xs);
}

.skill-item i {
    color: var(--primary);
}

.cv-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
}

.timeline-item {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border-left: 2px solid rgba(82, 113, 255, 0.3);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 0;
    width: 14px;
    height: 14px;
    border-radius: var(--radius-full);
    background-color: var(--primary);
}

.timeline-item h4 {
    color: var(--primary);
    font-size: var(--font-md);
    margin-bottom: 4px;
}

.timeline-item h5 {
    color: var(--text-secondary);
    font-size: var(--font-sm);
    font-weight: normal;
    margin-bottom: var(--spacing-xs);
}

.timeline-item p {
    color: var(--text-muted);
    font-size: var(--font-sm);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

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

.contact-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: rgba(82, 113, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    color: var(--primary);
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background-color: var(--primary);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-sm);
    margin-top: var(--spacing-md);
    transition: all var(--transition-normal);
}

.download-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

/* ==================== CONTACT PAGE ==================== */
.contact-form-section {
    padding: var(--spacing-2xl) 0;
}

.contact-form-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
}

.contact-info {
    background-color: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    height: fit-content;
}

.contact-info h3 {
    font-size: var(--font-xl);
    margin-bottom: var(--spacing-lg);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.info-item i {
    width: 40px;
    height: 40px;
    background-color: rgba(82, 113, 255, 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.form-container {
    background-color: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

.form-container h3 {
    font-size: var(--font-xl);
    margin-bottom: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    font-size: var(--font-sm);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    background-color: rgba(255, 255, 255, 0.07);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: var(--font-sm);
    transition: all var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(82, 113, 255, 0.1);
}

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

.error {
    color: var(--error);
    font-size: var(--font-xs);
    margin-top: 4px;
    display: block;
}

.success-message {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    max-width: 600px;
    margin: 0 auto;
}

.success-message i {
    font-size: var(--font-4xl);
    color: var(--success);
    margin-bottom: var(--spacing-md);
}

.success-message h3 {
    font-size: var(--font-2xl);
    margin-bottom: var(--spacing-sm);
}

/* ==================== FOOTER ==================== */
footer {
    background-color: rgba(0, 0, 0, 0.8);
    padding: var(--spacing-xl) 5% var(--spacing-md);
    margin-top: var(--spacing-2xl);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.footer-info h3 {
    font-size: var(--font-xl);
    margin-bottom: var(--spacing-xs);
}

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

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

.social-icon {
    width: 40px;
    height: 40px;
    background-color: var(--bg-card);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.social-icon:hover {
    background-color: var(--primary);
    transform: translateY(-3px);
}

.copyright {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: var(--font-xs);
}

/* ==================== LIGHTGALLERY CUSTOMIZATION ==================== */
.lg-backdrop {
    background-color: rgba(0, 0, 0, 0.95) !important;
    backdrop-filter: blur(10px);
}

.lg-toolbar {
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.8) 0%, transparent 100%) !important;
}

.lg-icon {
    color: var(--text-primary) !important;
    background-color: rgba(255, 255, 255, 0.1) !important;
    border-radius: var(--radius-full) !important;
    transition: all var(--transition-normal) !important;
}

.lg-icon:hover {
    background-color: var(--primary) !important;
    transform: scale(1.1) !important;
}

.lg-prev,
.lg-next {
    background-color: rgba(0, 0, 0, 0.5) !important;
    border-radius: var(--radius-full) !important;
}

.lg-prev:hover,
.lg-next:hover {
    background-color: var(--primary) !important;
}

.lg-counter {
    color: var(--text-primary) !important;
    background-color: rgba(82, 113, 255, 0.8) !important;
    padding: 8px 16px !important;
    border-radius: 20px !important;
    font-weight: 600 !important;
}

/* ==================== ANIMATIONS ==================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

/* ==================== RESPONSIVE ==================== */
@media (max-width: 992px) {
    :root {
        --font-5xl: 50px;
        --font-4xl: 45px;
        --font-3xl: 38px;
        --font-2xl: 28px;
    }

    .project-detail,
    .cv-grid,
    .contact-form-grid {
        grid-template-columns: 1fr;
    }

    .project-detail:nth-child(even) {
        direction: ltr;
    }

    .skills-container {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-3xl: 60px;
        --spacing-2xl: 50px;
        --spacing-xl: 40px;
    }

    header {
        padding: var(--spacing-sm) 5%;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    nav {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: rgba(0, 0, 0, 0.98);
        transition: left var(--transition-normal);
        padding: var(--spacing-lg);
    }

    nav.active {
        left: 0;
    }

    nav ul {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    nav ul li a {
        font-size: var(--font-md);
    }

    .hero {
        min-height: 70vh;
        margin-top: 70px;
    }

    .cv-header {
        height: 50vh;
    }

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--spacing-xs);
    }

    .project-meta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    :root {
        --font-5xl: 36px;
        --font-4xl: 32px;
        --font-3xl: 28px;
        --font-2xl: 24px;
    }

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

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* ==================== PRINT STYLES ==================== */
@media print {
    header,
    footer,
    .btn,
    .social-links {
        display: none;
    }

    body {
        background-color: white;
        color: black;
    }

    .cv-header {
        height: auto;
        margin-left: 0;
        width: 100%;
    }
}