/* ============================================
   PORTFOLIO ACADÉMIQUE BUT MMI - STYLES PRINCIPAUX
   Design moderne rose/blanc pour présentation professionnelle
   ============================================
   
   Architecture CSS modulaire et maintenable
   Palette rose académique avec typographie optimisée
   Conformité WCAG 2.1 niveau AAA pour accessibilité maximale
   Responsive design et performance optimisée
   
   ============================================ */

/* Import des modules CSS spécialisés */
@import url('./css/variables.css');
@import url('./css/utilities.css');
@import url('./css/tinder-cards.css');
@import url('./css/modal.css');
@import url('./css/skills.css');
@import url('./css/project-pages.css');
@import url('./css/contact.css');

/* ============================================
   RESET ET FONDATIONS
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 100%; /* Base 16px pour l'accessibilité */
}

/* Respect des préférences utilisateur pour les animations */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

body {
    font-family: var(--font-family-sans);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    min-height: 100vh;
    font-weight: var(--font-weight-normal);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ============================================
   NAVIGATION MODERNE
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: var(--z-fixed);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
}

.nav-logo a {
    font-size: var(--text-xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    text-decoration: none;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: opacity var(--transition-normal);
}

.nav-logo a:hover {
    opacity: 0.8;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: var(--text-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    position: relative;
    letter-spacing: 0.01em;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background-color: var(--bg-rose-subtle);
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
    border-radius: var(--radius-full);
}

.nav-link:hover::before,
.nav-link.active::before {
    width: 80%;
}

/* Navigation mobile */
.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-normal);
}

.nav-toggle:hover {
    background-color: var(--bg-rose-subtle);
}

.bar {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all var(--transition-normal);
    border-radius: var(--radius-full);
    margin: 2px 0;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23e2e8f0" opacity="0.4"/><circle cx="75" cy="75" r="1" fill="%23cbd5e1" opacity="0.3"/><circle cx="50" cy="10" r="1" fill="%23e2e8f0" opacity="0.2"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
    opacity: 0.5;
    z-index: 0;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

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

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-line {
    display: block;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-weight: 500;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: var(--font-weight-semibold);
    font-size: var(--text-base);
    text-decoration: none;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    cursor: pointer;
    line-height: 1;
    letter-spacing: 0.01em;
    position: relative;
    overflow: hidden;
    min-height: 48px; /* Accessibilité tactile */
    white-space: nowrap;
}

.btn:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-white);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    filter: brightness(1.05);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-xs);
}

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

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

.btn-outline {
    background: var(--bg-primary);
    color: var(--text-secondary);
    border-color: var(--border-color);
    box-shadow: var(--shadow-xs);
}

.btn-outline:hover {
    background: var(--bg-rose-subtle);
    color: var(--primary-color);
    border-color: var(--border-rose);
    transform: translateY(-1px);
}

/* Tailles de boutons */
.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--text-sm);
    min-height: 40px;
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--text-lg);
    min-height: 56px;
}

/* Bouton avec icône */
.btn-icon {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-icon svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* États désactivés */
.btn:disabled,
.btn.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.btn:disabled:hover,
.btn.disabled:hover {
    transform: none;
    filter: none;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-card {
    background: var(--bg-primary);
    border-radius: 1.5rem;
    padding: 2.5rem;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    max-width: 400px;
    width: 100%;
}

.card-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    text-align: center;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.tech-tag {
    background: var(--gradient-accent);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

/* ============================================
   SECTIONS GÉNÉRIQUES
   ============================================ */

section {
    padding: var(--section-padding);
    position: relative;
}

.section-title {
    font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
    font-weight: var(--font-weight-extrabold);
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    line-height: var(--leading-tight);
    color: var(--text-primary);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

/* ============================================
   SECTION À PROPOS
   ============================================ */

.about {
    background: var(--bg-tertiary);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 20%, var(--bg-rose-subtle) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, var(--bg-rose-light) 0%, transparent 30%);
    opacity: 0.4;
    z-index: 0;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
    position: relative;
    z-index: 1;
}

.about-text {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    color: var(--text-secondary);
}

.about-text p {
    margin-bottom: var(--spacing-lg);
}

.about-text p:last-child {
    margin-bottom: 0;
}

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

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

.highlight-card {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-rose);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.highlight-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.highlight-card h4 {
    font-size: var(--text-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.highlight-card p {
    color: var(--text-secondary);
    line-height: var(--leading-normal);
    font-size: var(--text-sm);
}

/* ============================================
   SECTION PROJETS
   ============================================ */

.projects {
    background: var(--bg-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
}

.projects::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-subtle);
    opacity: 0.5;
    z-index: 0;
}

.projects .container {
    position: relative;
    z-index: 1;
}

.projects-intro {
    text-align: center;
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-3xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: var(--leading-relaxed);
}

.projects-intro strong {
    color: var(--primary-color);
    font-weight: var(--font-weight-semibold);
}

/* Styles pour les skills */
.skills {
    background: var(--bg-secondary);
    position: relative;
}

.skills-intro {
    text-align: center;
    font-size: var(--text-base);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: var(--leading-relaxed);
}

/* Section Contact */
.contact {
    background: var(--bg-tertiary);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, var(--bg-rose-subtle) 0%, transparent 40%),
        radial-gradient(circle at 80% 50%, var(--bg-rose-light) 0%, transparent 40%);
    opacity: 0.3;
    z-index: 0;
}

.contact-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.contact-description {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.contact-description strong {
    color: var(--primary-color);
    font-weight: var(--font-weight-semibold);
}

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

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--bg-card);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-rose);
    transition: all var(--transition-normal);
    font-weight: var(--font-weight-medium);
    min-height: 48px;
}

.contact-link:hover {
    background: var(--primary-color);
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.contact-link span {
    font-size: var(--text-lg);
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: var(--text-inverse);
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.footer p {
    margin-bottom: var(--spacing-sm);
    font-size: var(--text-sm);
}

.footer p:last-child {
    margin-bottom: 0;
}

.footer-note {
    color: var(--text-light);
    font-size: var(--text-xs);
    max-width: 600px;
    margin: 0 auto;
    line-height: var(--leading-relaxed);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Navigation mobile */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--bg-primary);
        width: 100%;
        text-align: center;
        transition: var(--transition-smooth);
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
    }

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

    .nav-toggle {
        display: flex;
    }

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

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    /* Hero responsive */
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .hero-cta {
        justify-content: center;
    }

    /* About responsive */
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .projects {
        padding: 4rem 0;
    }

    .projects-intro {
        font-size: 1rem;
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .nav-container {
        padding: 0 1rem;
    }

    .hero {
        padding: 6rem 0 2rem;
    }

    .hero-card {
        padding: 1.5rem;
    }

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

    .highlight-card {
        padding: 1.5rem;
    }
}

/* ============================================
   ANIMATIONS ET TRANSITIONS
   ============================================ */

/* Classes d'animation pour GSAP */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
}

.scale-in {
    opacity: 0;
    transform: scale(0.8);
}