/* ===== MODERN COMPONENTS 2025 ===== */

/* ===== NAVIGATION ===== */
.navigation {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-normal);
    height: var(--nav-height);
    box-shadow: var(--shadow-sm);
}

.navigation.scrolled {
    background: rgba(255, 255, 255, 0.98);
    border-bottom-color: var(--color-border-accent);
    box-shadow: var(--shadow-lg);
}

.navigation .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-brand {
    display: flex;
    align-items: center;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    transition: transform var(--transition-fast);
}

.brand-link:hover {
    transform: scale(1.05);
}

.brand-logo {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.2rem;
    color: white;
    box-shadow: var(--shadow-glow);
}

.brand-text {
    font-family: var(--font-family-display);
    font-weight: 700;
    font-size: var(--font-size-lg);
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    position: relative;
    font-weight: 500;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
}

.nav-link:hover {
    color: var(--color-accent);
    background: var(--color-glass-hover);
    transform: translateY(-1px);
}

.nav-link.active {
    color: var(--color-primary);
    background: var(--color-glass-hover);
    font-weight: 600;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: var(--color-accent);
    border-radius: 50%;
}

.login-btn {
    background: transparent;
    color: var(--color-text-primary);
    font-weight: 500;
    font-size: 0.95rem;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    margin-left: var(--space-md);
    padding: 8px 16px;
    transition: all 0.2s ease;
    position: relative;
    z-index: 10;
    pointer-events: auto;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.login-btn:hover {
    background: var(--color-accent);
    color: white;
    border-color: var(--color-accent);
    text-decoration: none;
    transform: translateY(-1px);
}

.login-btn:active {
    transform: translateY(0);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
    gap: 4px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-toggle:hover {
    background: var(--color-glass);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: 
        linear-gradient(135deg, 
            rgba(249, 250, 251, 0.95) 0%, 
            rgba(243, 244, 246, 0.9) 25%,
            rgba(239, 246, 255, 0.95) 50%,
            rgba(219, 234, 254, 0.9) 75%,
            rgba(191, 219, 254, 0.8) 100%
        );
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 15% 20%, rgba(30, 64, 175, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 85% 80%, rgba(59, 130, 246, 0.12) 0%, transparent 45%),
        radial-gradient(circle at 70% 15%, rgba(147, 197, 253, 0.1) 0%, transparent 35%),
        radial-gradient(circle at 20% 85%, rgba(30, 64, 175, 0.08) 0%, transparent 40%),
        linear-gradient(45deg, 
            transparent 0%, 
            rgba(30, 64, 175, 0.03) 25%, 
            transparent 50%, 
            rgba(59, 130, 246, 0.04) 75%, 
            transparent 100%
        );
    pointer-events: none;
    animation: hero-bg-flow 20s ease-in-out infinite;
}

/* Animation du fond bleu */
@keyframes hero-bg-flow {
    0%, 100% {
        transform: translateX(0) translateY(0) scale(1);
        opacity: 1;
    }
    25% {
        transform: translateX(-10px) translateY(-15px) scale(1.02);
        opacity: 0.9;
    }
    50% {
        transform: translateX(15px) translateY(-5px) scale(0.98);
        opacity: 1;
    }
    75% {
        transform: translateX(-5px) translateY(10px) scale(1.01);
        opacity: 0.95;
    }
}

.hero::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 30% 40%, rgba(30, 64, 175, 0.08) 2px, transparent 2px),
        radial-gradient(circle at 70% 60%, rgba(59, 130, 246, 0.06) 1.5px, transparent 1.5px);
    background-size: 120px 120px, 80px 80px;
    background-position: 0 0, 40px 40px;
    pointer-events: none;
    z-index: -1;
    animation: hero-dots-flow 25s linear infinite;
}

@keyframes hero-dots-flow {
    0% {
        transform: translate(0, 0) rotate(0deg);
    }
    100% {
        transform: translate(-120px, -80px) rotate(360deg);
    }
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(30, 64, 175, 0.2);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-xl);
    backdrop-filter: blur(10px);
    box-shadow: 
        0 4px 20px rgba(30, 64, 175, 0.1),
        0 1px 3px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.hero-badge:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 8px 30px rgba(30, 64, 175, 0.15),
        0 2px 8px rgba(0, 0, 0, 0.1);
}

.badge-icon {
    font-size: 1.1rem;
}

.badge-text {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
}

.hero-title {
    margin-bottom: var(--space-xl);
}

.hero-greeting {
    display: block;
    font-size: var(--font-size-lg);
    font-weight: 400;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.hero-name {
    display: block;
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.04em;
    text-shadow: 0 0 30px rgba(30, 64, 175, 0.1);
    position: relative;
}

.hero-name::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        transparent 0%, 
        rgba(30, 64, 175, 0.05) 50%, 
        transparent 100%
    );
    border-radius: var(--radius-lg);
    pointer-events: none;
    z-index: -1;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-2xl);
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-3xl);
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--color-accent);
    font-family: var(--font-family-display);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    font-weight: 500;
}

.hero-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-elements {
    position: relative;
    width: 100%;
    height: 100%;
}

.floating-card {
    position: absolute;
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    transition: all var(--transition-slow);
    cursor: pointer;
}

.floating-card:hover {
    transform: translateY(-5px) scale(1.05);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow-accent);
}

.floating-card:nth-child(1) {
    top: 20%;
    left: 10%;
    animation: float 6s ease-in-out infinite;
}

.floating-card:nth-child(2) {
    top: 50%;
    right: 15%;
    animation: float 6s ease-in-out infinite 2s;
}

.floating-card:nth-child(3) {
    bottom: 25%;
    left: 20%;
    animation: float 6s ease-in-out infinite 4s;
}

.floating-card .card-icon {
    font-size: 1.5rem;
}

.floating-card span {
    font-weight: 600;
    color: var(--color-text-primary);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--space-2xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
}

.scroll-dot {
    width: 4px;
    height: 30px;
    background: var(--color-border);
    border-radius: var(--radius-full);
    position: relative;
    overflow: hidden;
}

.scroll-dot::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 20px;
    background: var(--color-accent);
    border-radius: var(--radius-full);
    animation: scroll-animation 2s ease-in-out infinite;
}

.scroll-text {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

@keyframes scroll-animation {
    0%, 20% {
        transform: translateY(-100%);
    }
    50% {
        transform: translateY(25px);
    }
    80%, 100% {
        transform: translateY(50px);
    }
}

/* ===== BUTTONS ===== */
.btn-primary,
.btn-secondary,
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-sm);
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-text-light);
    box-shadow: var(--shadow-md);
    font-weight: 600;
}

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

.btn-secondary {
    background: var(--color-glass);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
    font-weight: 500;
}

.btn-secondary:hover {
    background: var(--color-glass-hover);
    border-color: var(--color-accent);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-outline:hover {
    background: var(--color-glass);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-sm {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-xs);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ===== SECTIONS ===== */
.section {
    padding: var(--space-5xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-4xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--color-accent);
    margin-bottom: var(--space-lg);
    backdrop-filter: blur(10px);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--space-lg);
    line-height: 1.2;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== CARDS ===== */
.glass-card {
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(20px);
    transition: all var(--transition-normal);
}

.glass-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.gradient-bg {
    background: var(--gradient-primary);
}

.gradient-bg-primary {
    background: var(--gradient-primary);
}

.gradient-bg-secondary {
    background: var(--gradient-secondary);
}

.gradient-bg-accent {
    background: var(--gradient-accent);
}

/* ===== ABOUT SECTION ===== */
.about-section {
    background: var(--color-bg-light);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: start;
}

.about-text .text-block {
    margin-bottom: var(--space-2xl);
}

.about-text h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
}

.about-text p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.skills-preview {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.skill-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.skill-item:hover {
    border-color: var(--color-accent);
    transform: translateX(5px);
}

.skill-icon {
    font-size: 1.5rem;
}

.skill-name {
    font-weight: 600;
    color: var(--color-text-primary);
}

.about-visual .visual-card {
    padding: var(--space-2xl);
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.card-header h4 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

.card-metrics {
    display: flex;
    gap: var(--space-xl);
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.metric {
    text-align: center;
}

.metric-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-xs);
}

.metric-value {
    display: block;
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--color-accent);
}

/* ===== EXPERTISE SECTION ===== */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-2xl);
}

.expertise-card {
    padding: var(--space-2xl);
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(20px);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.expertise-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.expertise-card:hover::before {
    opacity: 1;
}

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

.expertise-card .card-icon {
    margin-bottom: var(--space-lg);
}

.expertise-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
}

.expertise-card p {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.tech-tag {
    background: var(--color-bg-secondary);
    color: var(--color-accent);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border: 1px solid rgba(29, 78, 216, 0.15);
}

/* ===== PROJECTS SECTION ===== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
    align-items: start;
}

.project-card {
    padding: var(--space-2xl);
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(20px);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    height: fit-content;
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-2xl);
}

.project-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.project-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.project-status {
    background: var(--color-accent);
    color: white;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.project-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
}

.project-card p {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
}

.project-metrics {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    padding: var(--space-lg);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
}

.project-metrics .metric {
    text-align: center;
}

.project-metrics .metric-number {
    display: block;
    font-size: var(--font-size-lg);
    font-weight: 800;
    color: var(--color-accent);
}

.project-metrics .metric-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.project-actions {
    display: flex;
    gap: var(--space-md);
    margin-top: auto;
}

/* ===== PLATFORM SECTION ===== */
.platform-section {
    background: var(--color-bg-light);
}

.platform-diagram {
    max-width: 800px;
    margin: 0 auto;
}

.diagram-layer {
    margin-bottom: var(--space-2xl);
    padding: var(--space-2xl);
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(20px);
    transition: all var(--transition-normal);
}

.diagram-layer:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
}

.diagram-layer h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
    text-align: center;
}

.layer-items {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

.layer-item {
    background: var(--color-bg-secondary);
    color: var(--color-accent);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    font-weight: 600;
    border: 1px solid rgba(29, 78, 216, 0.15);
    transition: all var(--transition-fast);
}

.layer-item:hover {
    background: var(--color-accent);
    color: white;
    transform: scale(1.05);
}

/* ===== CONTACT SECTION ===== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
}

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

.contact-card {
    padding: var(--space-2xl);
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(20px);
    transition: all var(--transition-normal);
}

.contact-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
}

.contact-card .contact-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    margin-bottom: var(--space-lg);
}

.contact-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--color-text-primary);
}

.contact-card p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.contact-link {
    color: var(--color-accent);
    font-weight: 600;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* ===== FORM STYLES ===== */
.contact-form {
    padding: var(--space-2xl);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
    font-size: var(--font-size-sm);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.1);
}

.form-group textarea {
    min-height: 120px;
    font-family: inherit;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-2xl);
    align-items: start;
}

.footer-brand {
    grid-column: span 1;
}

.footer-links {
    display: contents;
}

.footer-brand .brand-logo {
    width: 40px;
    height: 40px;
    margin-bottom: var(--space-md);
}

.footer-brand h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--color-text-primary);
}

.footer-brand p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.footer-column h4 {
    font-size: var(--font-size-md);
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
}

.footer-column {
    display: flex;
    flex-direction: column;
}

.footer-column a {
    display: block;
    color: var(--color-text-secondary);
    text-decoration: none;
    margin-bottom: var(--space-sm);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-copyright p,
.footer-credits p {
    color: var(--color-text-tertiary);
    font-size: var(--font-size-xs);
    margin: 0;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .expertise-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-lg);
    }
    
    .footer-brand {
        grid-column: span 2;
        text-align: center;
        margin-bottom: var(--space-lg);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        border-top: 1px solid var(--color-border);
        flex-direction: column;
        padding: var(--space-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .login-btn {
        margin-left: 0;
        margin-top: var(--space-md);
        padding: 8px 16px;
        font-size: 0.9rem;
        border-radius: 6px;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        justify-content: center;
        text-align: center;
    }
    
    .floating-elements {
        display: none;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-xl);
    }
    
    .footer-brand {
        margin-bottom: var(--space-lg);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .section {
        padding: var(--space-3xl) 0;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .platform-diagram {
        padding: 0 var(--space-md);
    }
    
    .layer-items {
        flex-direction: column;
        align-items: center;
    }
}

/* ===== NOTIFICATION SYSTEM ===== */
.notification {
    position: fixed;
    top: 100px;
    right: var(--space-lg);
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-xl);
    transform: translateX(100%);
    opacity: 0;
    transition: all var(--transition-normal);
    z-index: 10000;
    max-width: 400px;
}

.notification--show {
    transform: translateX(0);
    opacity: 1;
}

.notification--success {
    border-color: var(--color-success);
}

.notification--error {
    border-color: var(--color-error);
}

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

.notification__message {
    color: var(--color-text-primary);
    font-weight: 500;
}

.notification__close {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0;
    transition: color var(--transition-fast);
}

.notification__close:hover {
    color: var(--color-text-primary);
}

/* ===== COUNTER ANIMATION ===== */
.counter {
    transition: all 0.3s ease;
}

/* ===== DEVELOPER MODE ===== */
.developer-mode-indicator {
    position: fixed;
    top: 100px;
    left: var(--space-lg);
    background: var(--color-accent);
    color: white;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-xs);
    font-weight: 600;
    z-index: 10000;
    animation: pulse 2s infinite;
    display: none;
}

.developer-mode .developer-mode-indicator {
    display: block;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* ===== RIPPLE EFFECT ===== */
.ripple {
    position: absolute;
    border-radius: 50%;
    transform: scale(0);
    animation: ripple-animation 0.6s linear;
    background-color: rgba(255, 255, 255, 0.6);
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ===== FORM ENHANCEMENTS ===== */
.form-group {
    position: relative;
}

.form-group input.error,
.form-group textarea.error {
    border-color: var(--color-error);
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
}

.field-error {
    color: var(--color-error);
    font-size: var(--font-size-xs);
    margin-top: var(--space-xs);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.field-error::before {
    content: '⚠️';
    font-size: 0.8rem;
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===== ENHANCED NOTIFICATION ===== */
.notification {
    border-left: 4px solid var(--color-accent);
}

.notification--success {
    border-left-color: var(--color-success);
}

.notification--error {
    border-left-color: var(--color-error);
}

.notification--warning {
    border-left-color: var(--color-warning);
}

.notification__content {
    align-items: flex-start;
}

.notification__icon {
    font-size: 1.2rem;
    margin-right: var(--space-xs);
}

/* ===== PERFORMANCE OPTIMIZATIONS ===== */
.reduced-motion * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
}

.page-hidden .floating-card {
    animation-play-state: paused;
}

.page-hidden .animate-float {
    animation-play-state: paused;
}

/* ===== LAZY LOADING ===== */
img[data-src] {
    opacity: 0;
    transition: opacity 0.3s ease;
}

img.loaded {
    opacity: 1;
}

/* ===== ENHANCED INTERACTIONS ===== */
.glass-card {
    transition: all var(--transition-normal), transform var(--transition-slow);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(29, 78, 216, 0.05), transparent);
    transition: left 0.5s ease;
}

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

.glass-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-accent);
}

/* ===== INTERACTIVE PROJECT CARDS ===== */
.project-card {
    position: relative;
    transition: all var(--transition-normal);
}

.project-card::after {
    content: '👁️ Voir détails';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--gradient-primary);
    color: var(--color-text-light);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-lg);
    opacity: 0;
    transition: all var(--transition-normal);
    font-weight: 600;
    font-size: var(--font-size-sm);
    pointer-events: none;
    z-index: 2;
}

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

.project-card:hover {
    transform: translateY(-10px) scale(1.02);
}

.project-card:hover .project-header,
.project-card:hover h3,
.project-card:hover p,
.project-card:hover .project-tech,
.project-card:hover .project-metrics {
    opacity: 0.3;
    transition: opacity var(--transition-normal);
}

/* ===== ENHANCED BUTTONS ===== */
.btn-primary,
.btn-secondary,
.btn-outline {
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.btn-primary::before,
.btn-secondary::before,
.btn-outline::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.3s ease;
}

.btn-primary:hover::before,
.btn-secondary:hover::before,
.btn-outline:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary:active,
.btn-secondary:active,
.btn-outline:active {
    transform: translateY(1px);
    box-shadow: var(--shadow-sm);
}

/* ===== FLOATING ANIMATIONS ===== */
.floating-card {
    animation: float-gentle 6s ease-in-out infinite;
}

.floating-card:nth-child(2) {
    animation-delay: 2s;
}

.floating-card:nth-child(3) {
    animation-delay: 4s;
}

@keyframes float-gentle {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    25% {
        transform: translateY(-15px) rotate(1deg);
    }
    50% {
        transform: translateY(-10px) rotate(0deg);
    }
    75% {
        transform: translateY(-20px) rotate(-1deg);
    }
}

/* ===== SKILL ITEMS INTERACTIVE ===== */
.skill-item {
    cursor: pointer;
    position: relative;
}

.skill-item::before {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    transition: width var(--transition-normal);
}

.skill-item:hover::before {
    width: 100%;
}

.skill-item:hover {
    transform: translateX(10px);
    background: var(--color-glass-hover);
}

/* ===== ACCESSIBILITY ENHANCEMENTS ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles */
button:focus,
.btn-primary:focus,
.btn-secondary:focus,
.btn-outline:focus,
.nav-link:focus,
.contact-link:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* ===== SCROLL BEHAVIOR ENHANCEMENTS ===== */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* ===== ENHANCED RESPONSIVE BEHAVIOR ===== */
@media (max-width: 480px) {
    .hero-visual {
        height: 300px;
    }
    
    .floating-elements {
        display: none;
    }
    
    .section-header {
        margin-bottom: var(--space-2xl);
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
}

/* ===== DARK MODE PREPARATIONS ===== */
@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;
    }
}

/* ===== LOADING ANIMATIONS ===== */
.animate-pulse {
    animation: pulse-loading 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse-loading {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* ===== STAGGER ANIMATIONS ===== */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.stagger-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

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

/* ===== ENHANCED HOVER STATES ===== */
.expertise-card:hover .card-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-glow-accent);
}

.contact-card:hover .contact-icon {
    transform: scale(1.15) rotate(-5deg);
    box-shadow: var(--shadow-glow-secondary);
}

/* ===== GRADIENT TEXT ANIMATIONS ===== */
.text-gradient {
    background: var(--gradient-mesh);
    background-size: 200% 200%;
    animation: gradient-shift 3s ease infinite;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ===== SCROLL PROGRESS INDICATOR ===== */
.scroll-progress {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--gradient-accent);
    z-index: 1001;
    transition: width 0.1s ease;
}

/* ===== ENHANCED FORM STYLES ===== */
.form-group input:focus,
.form-group textarea:focus {
    transform: scale(1.02);
    box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.1), var(--shadow-lg);
}

.form-group label {
    transition: all var(--transition-fast);
}

.form-group input:focus + label,
.form-group textarea:focus + label {
    color: var(--color-accent);
    transform: translateY(-2px);
}

/* ===== TOOLTIP SYSTEM ===== */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--color-text-light);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-fast);
    z-index: 1000;
}

.tooltip:hover::after {
    opacity: 1;
    transform: translateX(-50%) translateY(-5px);
}

/* ===== PARTICLE EFFECTS ===== */
.particle-container {
    position: relative;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--color-accent);
    border-radius: 50%;
    pointer-events: none;
    animation: particle-float 8s linear infinite;
}

@keyframes particle-float {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) rotate(360deg);
        opacity: 0;
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    .navigation,
    .scroll-indicator,
    .floating-elements,
    .notification,
    .scroll-progress {
        display: none;
    }
    
    .section {
        padding: var(--space-lg) 0;
        break-inside: avoid;
    }
    
    .project-card,
    .expertise-card {
        break-inside: avoid;
        margin-bottom: var(--space-lg);
    }
    
    * {
        animation: none !important;
        transition: none !important;
    }
}