/* ===================================
   Modern Portfolio - Inspired Design
   =================================== */

/* Color Palette - QuizUp App Inspired */
:root {
    --color-bg: #0a0e1a;
    --color-surface: #131824;
    --color-border: #1e2534;
    --color-primary: #3b82f6;
    --color-primary-light: #60a5fa;
    --color-accent: #14b8a6;
    --color-accent-light: #5eead4;
    --color-text: #f1f5f9;
    --color-text-muted: #94a3b8;
    --transition: 0.3s ease;
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 12px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(80px + 1cm);
    scroll-snap-type: y proximity;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', system-ui, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-size: 22px;
    overflow-x: hidden;
}

/* Grain Effect */
.grainy {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.5;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.05'/%3E%3C/svg%3E");
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(circle at 20% 30%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(20, 184, 166, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(96, 165, 250, 0.05) 0%, transparent 50%);
    animation: backgroundMove 30s ease infinite;
    z-index: -1;
    pointer-events: none;
}

@keyframes backgroundMove {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(-10%, 10%) rotate(5deg); }
    66% { transform: translate(10%, -10%) rotate(-5deg); }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--color-text);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(4rem, 8vw, 6rem); }
h2 { font-size: clamp(3rem, 6vw, 4.5rem); }
h3 { font-size: clamp(2.25rem, 4.5vw, 3rem); }

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

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

/* Container */
.container, .container-fluid {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

@media (max-width: 768px) {
    .container, .container-fluid {
        padding: 0 1.5rem;
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    background: var(--color-primary);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(59, 130, 246, 0.3);
}

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

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.5rem 0;
    background: rgba(10, 14, 26, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition);
}

.navbar.scrolled {
    padding: 1rem 0;
    background: rgba(10, 14, 26, 0.95);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

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

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.03em;
}

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

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition);
}

.nav-link:hover, .nav-link.active {
    color: var(--color-text);
}

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

@media (max-width: 768px) {
    .navbar-nav {
        gap: 1rem;
    }
}

/* Hero Section - Optimisé pour tenir à l'écran */
.hero {
    min-height: calc(100vh + 4cm);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: calc(80px + 1cm);
    padding-bottom: 4cm;
    position: relative;
    box-sizing: border-box;
    scroll-snap-align: start;
}

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

@media (min-width: 768px) {
    .hero .row {
        grid-template-columns: 1.2fr 1fr;
    }
}

.hero-content {
    max-width: 100%;
}

.hero-text p {
    color: var(--color-accent);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 0.5rem;
}

.hero-text h1 {
    margin-bottom: 0.75rem;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-muted) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: clamp(2.5rem, 5vw, 3.5rem);
}

.hero-text h2 {
    color: var(--color-text-muted);
    font-weight: 500;
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

/* Hero Tags */
.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 1rem 0;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-sm);
    color: var(--color-primary);
    font-size: 0.9rem;
    font-weight: 600;
    animation: fadeInUp 0.6s ease backwards;
    transition: all var(--transition);
}

.hero-tag:nth-child(1) {
    animation-delay: 0.1s;
}

.hero-tag:nth-child(2) {
    animation-delay: 0.2s;
}

.hero-tag:nth-child(3) {
    animation-delay: 0.3s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-tag:hover {
    background: rgba(59, 130, 246, 0.2);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

/* Hero Contacts */
.hero-contacts {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 1rem 0;
}

.hero-contact-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    font-size: 0.9rem;
    transition: all var(--transition);
}

.hero-contact-link:hover {
    color: var(--color-text);
    border-color: var(--color-primary);
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
}

.hero-contact-link i {
    color: var(--color-primary);
    font-size: 1rem;
}

.hero-btn {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.hero-image {
    text-align: center;
    overflow: visible;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    width: 100%;
    max-width: 250px;
    height: auto;
    filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.5));
    transform: scale(1.8) !important;
}

/* Section Spacing - Réduit pour tenir à l'écran */
section {
    padding-top: calc(80px + 1cm);
    padding-bottom: 4cm;
    min-height: calc(100vh + 4cm);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    box-sizing: border-box;
    scroll-snap-align: start;
    position: relative;
}

/* Portfolio peut déborder */
.portfolio {
    height: auto;
    max-height: none;
    min-height: 100vh;
    overflow: visible;
}

@media (max-width: 768px) {
    section {
        padding: 3rem 0 2rem 0;
        min-height: auto;
    }
}

/* Section Header - Réduit */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 1rem;
}

.section-header p {
    color: var(--color-accent);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 0.25rem;
}

.section-header h2 {
    margin-bottom: 0.5rem;
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

.section-header .subtitle {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

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

.about .row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    align-items: center;
    margin-bottom: 2cm;
}

@media (min-width: 968px) {
    .about .row {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
}

.about-img {
    text-align: center;
    overflow: visible;
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-img img {
    max-width: 60%;
    height: auto;
    filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.5));
    transform: scale(3) !important;
}

.about-content {
    max-width: 600px;
}

.about-text p {
    color: var(--color-text-muted);
    font-size: 1.2rem;
    line-height: 1.5;
    margin-bottom: 0.5rem;
}

.about-text strong {
    color: var(--color-text);
    font-weight: 600;
}

.skills {
    margin: 0.75rem 0;
}

.skill-name {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.25rem;
}

.skill-name p {
    color: var(--color-text);
    font-weight: 500;
    font-size: 1rem;
}

.progress {
    height: 8px;
    background: var(--color-surface);
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: 0.75rem;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 999px;
    transition: width 1.5s cubic-bezier(0.65, 0, 0.35, 1);
}

.about-content .btn {
    display: inline-block;
    margin-top: 0.5rem;
    margin-bottom: 1.5rem;
}

.about-content .fb-like {
    display: block;
    margin-top: 1rem;
}

/* Services Section - Réduit */
.service {
    background: var(--color-bg);
}

.service .row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    max-width: 1200px;
    margin: 0 auto 2cm auto;
}

@media (max-width: 768px) {
    .service .row {
        grid-template-columns: 1fr;
    }
}

.service-item {
    padding: 1.25rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    min-width: 0;
}

.service-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.service-item:hover::before {
    transform: scaleX(1);
}

.service-item:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: 0 24px 48px rgba(59, 130, 246, 0.15);
}

.service-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(59, 130, 246, 0.1);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
}

.service-icon i {
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.service-text h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.service-text p {
    color: var(--color-text-muted);
    line-height: 1.4;
    font-size: 1rem;
}

/* Portfolio Section - Réduit */
.portfolio {
    background: var(--color-bg);
    padding: 3rem 0 3rem 0;
}

.portfolio-container {
    max-width: 1000px;
    margin: 0 auto;
}

.portfolio-item {
    margin-bottom: 2rem;
}

.portfolio-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 1.5rem;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
    position: relative;
}

.portfolio-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(10, 14, 26, 0.8) 100%);
    opacity: 0;
    transition: opacity var(--transition);
}

.portfolio-item:hover .portfolio-img::after {
    opacity: 1;
}

.portfolio-img a {
    display: block;
    cursor: pointer;
}

.portfolio-img img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s ease;
}

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

.portfolio-text {
    padding: 0 2rem;
}

.portfolio-text h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.portfolio-badge {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.badge {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    background: rgba(59, 130, 246, 0.1);
    color: var(--color-primary);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-sm);
}

.badge-success {
    background: rgba(20, 184, 166, 0.1);
    color: var(--color-accent);
    border-color: rgba(20, 184, 166, 0.2);
}

.portfolio-text p {
    color: var(--color-text-muted);
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.portfolio-text h5 {
    font-size: 1.25rem;
    margin: 2.5rem 0 1.5rem;
}

.portfolio-text ul {
    list-style: none;
    padding: 0;
    display: grid;
    gap: 1rem;
}

.portfolio-text ul li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    color: var(--color-text-muted);
    font-size: 1rem;
    line-height: 1.6;
}

.portfolio-text ul li i {
    color: var(--color-primary);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.portfolio-text .btn {
    margin-top: 2rem;
}

/* Experience Section - Réduit */
.experience {
    background: var(--color-bg);
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto 2cm auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-border);
    transform: translateX(-50%);
}

@media (max-width: 768px) {
    .timeline::before {
        left: 1.5rem;
    }
}

.timeline-item {
    position: relative;
    margin-bottom: 1rem;
    width: calc(50% - 2rem);
}

.timeline-item.left {
    margin-right: auto;
    padding-right: 3rem;
    text-align: right;
}

.timeline-item.right {
    margin-left: auto;
    padding-left: 3rem;
}

.timeline-item::after {
    content: '';
    position: absolute;
    top: 1.5rem;
    width: 16px;
    height: 16px;
    background: var(--color-primary);
    border: 4px solid var(--color-bg);
    border-radius: 50%;
    z-index: 1;
}

.timeline-item.left::after {
    right: -8px;
}

.timeline-item.right::after {
    left: -8px;
}

@media (max-width: 768px) {
    .timeline-item {
        width: calc(100% - 4rem);
        margin-left: 4rem;
        padding-left: 2rem;
        padding-right: 0;
        text-align: left;
    }

    .timeline-item.left {
        padding-right: 0;
        text-align: left;
    }

    .timeline-item::after {
        left: -2.5rem !important;
        right: auto !important;
    }
}

.timeline-date {
    color: var(--color-accent);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.timeline-text {
    padding: 1rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.timeline-text:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(59, 130, 246, 0.15);
}

.timeline-text h2 {
    font-size: 1.35rem;
    margin-bottom: 0.25rem;
}

.timeline-text h4 {
    color: var(--color-text-muted);
    font-weight: 500;
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

.timeline-text p {
    color: var(--color-text-muted);
    line-height: 1.4;
    font-size: 0.95rem;
}

/* Activity Section */
.activity {
    background: var(--color-bg);
}

.activity-row {
    display: flex;
    flex-wrap: wrap;
    margin-left: -8px !important;
    margin-right: -8px !important;
}

.activity-col {
    padding-left: 8px !important;
    padding-right: 8px !important;
    margin-bottom: 16px !important;
}

.activity-item {
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    border-radius: var(--radius-lg);
    position: relative;
}

.activity-item .instagram-media {
    margin: 0 auto !important;
}

.activity-img {
    width: 100%;
    aspect-ratio: 9/16;
    object-fit: cover;
    display: block;
    border-radius: var(--radius-lg);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
    transition: transform 0.6s ease;
}

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

.activity-video {
    width: 100%;
    aspect-ratio: 9/16;
    object-fit: cover;
    display: block;
    border-radius: var(--radius-lg);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
}

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

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    padding: 2rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 1.25rem;
    font-family: inherit;
    transition: all var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-control::placeholder {
    color: var(--color-text-muted);
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

/* Footer */
.footer {
    padding: 4rem 0 2rem;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
}

.footer-info {
    text-align: center;
    margin-bottom: 2rem;
}

.footer-info h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.footer-info h3 {
    color: var(--color-text-muted);
    font-size: 1rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
}

.footer-menu {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.footer-menu p {
    color: var(--color-text-muted);
    margin: 0;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.footer-social a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.footer-social a:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.footer-social i {
    color: var(--color-text-muted);
    transition: color var(--transition);
}

.footer-social a:hover i {
    color: var(--color-text);
}

.copyright {
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.copyright p {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.copyright a {
    color: var(--color-primary);
    font-weight: 600;
}

/* Loader */
#loader {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

#loader.show {
    opacity: 1;
    visibility: visible;
}

.loader {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Back to Top */
.back-to-top {
    position: fixed;
    right: 2rem;
    bottom: 2rem;
    width: 48px;
    height: 48px;
    display: none;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    transition: all var(--transition);
    z-index: 999;
}

.back-to-top:hover {
    background: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(59, 130, 246, 0.3);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mt-4 { margin-top: 1.5rem; }

/* ===================================
   GRID BACKGROUND EFFECTS
   =================================== */

/* EFFET 1 - DOT GRID AVEC TEINTE BLEUE (Tech/Matrix style)
   Usage: Sections impaires (#home, #service, #portfolio)
   Description: Grille de points + fond avec teinte bleu primaire */
.bg-grid-style-1 {
    position: relative;
    background-color: #0a0e1a !important;
    background-image:
        radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 60%),
        radial-gradient(circle, rgba(148, 163, 184, 0.2) 1px, transparent 1px) !important;
    background-size: 100% 100%, 40px 40px !important;
    background-position: center, 0 0 !important;
}

/* EFFET 2 - DOT GRID AVEC TEINTE TURQUOISE (Dark/AI style)
   Usage: Sections paires (#about, #experience, #contact)
   Description: Grille de points + fond avec teinte turquoise/teal */
.bg-grid-style-2 {
    position: relative;
    background-color: #0a0e1a !important;
    background-image:
        radial-gradient(circle at 50% 50%, rgba(20, 184, 166, 0.06) 0%, transparent 60%),
        radial-gradient(circle, rgba(148, 163, 184, 0.2) 1px, transparent 1px) !important;
    background-size: 100% 100%, 40px 40px !important;
    background-position: center, 0 0 !important;
}

/* EFFET 3 - SANS POINTS AVEC TEINTE BLEUE (Hero)
   Usage: Section Hero (#home)
   Description: Fond uni avec teinte bleu, pas de points */
.bg-grid-style-3 {
    position: relative;
    background-color: #0a0e1a !important;
    background-image:
        radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 60%) !important;
    background-size: 100% 100% !important;
    background-position: center !important;
}

/* ===================================
   MIRROR EFFECT ON HOVER
   =================================== */

/* Effet miroir au survol des images */
.portfolio-img {
    overflow: hidden;
    position: relative;
}

.hero-image {
    overflow: visible;
    position: relative;
}

.portfolio-img::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.3) 50%,
        transparent 100%
    );
    transform: skewX(-25deg);
    transition: left 0.6s ease;
    pointer-events: none;
    z-index: 2;
}

.portfolio-img:hover::after {
    left: 150%;
}

/* Alternative avec SVG (meilleure performance) */
.bg-grid-style-1-svg {
    position: relative;
    background-color: var(--color-bg);
    background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%2394a3b8' fill-opacity='0.15'%3E%3Ccircle cx='20' cy='20' r='1'/%3E%3C/g%3E%3C/svg%3E");
}

.bg-grid-style-2-svg {
    position: relative;
    background-color: var(--color-bg);
    background-image: url("data:image/svg+xml,%3Csvg width='24' height='24' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%2394a3b8' fill-opacity='0.08'%3E%3Ccircle cx='12' cy='12' r='0.5'/%3E%3C/g%3E%3C/svg%3E");
}

/* Fallback PNG pour navigateurs anciens (optionnel)
   Créer des fichiers grid-1.png et grid-2.png dans /img/ */
@supports not (background-image: radial-gradient(circle, transparent, transparent)) {
    .bg-grid-style-1 {
        background-image: url('../img/grid-1.png');
    }
    .bg-grid-style-2 {
        background-image: url('../img/grid-2.png');
    }
}

/* ===================================
   UNDERLINED LINKS STYLE (Melvynx inspired)
   =================================== */

/* Lien souligné principal */
.link-underline {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--color-text);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: underline;
    text-decoration-color: var(--color-text);
    text-decoration-thickness: 2px;
    text-underline-offset: 4px;
    transition: all var(--transition);
    cursor: pointer;
}

.link-underline:hover {
    color: var(--color-primary);
    text-decoration-color: var(--color-primary);
    text-underline-offset: 6px;
}

.link-underline i {
    font-size: 1rem;
    transition: transform var(--transition);
}

.link-underline:hover i {
    transform: translateX(4px);
}

/* Bouton style lien souligné pour les forms */
.link-underline-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0;
    background: none;
    border: none;
    color: var(--color-text);
    font-size: 1.15rem;
    font-weight: 500;
    text-decoration: underline;
    text-decoration-color: var(--color-text);
    text-decoration-thickness: 2px;
    text-underline-offset: 4px;
    transition: all var(--transition);
    cursor: pointer;
    font-family: inherit;
}

.link-underline-btn:hover {
    color: var(--color-primary);
    text-decoration-color: var(--color-primary);
    text-underline-offset: 6px;
}

.link-underline-btn i {
    font-size: 1rem;
    transition: transform var(--transition);
}

.link-underline-btn:hover i {
    transform: translateX(4px);
}

/* ===================================
   SOCIAL LINKS IN HERO
   =================================== */

.hero-social {
    margin: 1rem 0;
}

.social-label {
    color: var(--color-text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.social-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.4rem 0.8rem;
    height: 2.2rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--transition);
    white-space: nowrap;
}

.social-btn:hover {
    color: var(--color-text);
    border-color: var(--color-primary);
    background: rgba(59, 130, 246, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

.social-btn i {
    font-size: 1rem;
    transition: transform var(--transition);
}

.social-btn:hover i {
    transform: scale(1.1);
}

/* Couleurs spécifiques par plateforme */
.social-btn:has(.fa-youtube):hover {
    border-color: #ff0000;
    background: rgba(255, 0, 0, 0.1);
}

.social-btn:has(.fa-github):hover {
    border-color: #333;
    background: rgba(51, 51, 51, 0.1);
}

.social-btn:has(.fa-linkedin):hover {
    border-color: #0077b5;
    background: rgba(0, 119, 181, 0.1);
}

@media (max-width: 768px) {
    .social-links {
        flex-direction: column;
        align-items: flex-start;
    }

    .social-btn {
        width: 100%;
        max-width: 200px;
    }
}

/* Formation Link Section */
.hero-formation {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.formation-label {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.formation-label i {
    color: var(--color-primary);
}

.formation-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.75rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, #2563eb 100%);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.formation-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
    color: white;
    text-decoration: none;
}

.formation-link i {
    transition: transform var(--transition);
}

.formation-link:hover i {
    transform: translateX(4px);
}