/* ===== VARIABLES CSS ===== */
:root {
    --primary-color: #1796A4;
    --dark-bg: #121212;
    --card-bg: #1E1E1E;
    --light-text: #F5F5F5;
    --text-muted: #AAAAAA;
    --border-color: #333333;
    --gradient-primary: linear-gradient(135deg, #1796A4 0%, #0F7A85 100%);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 12px 40px rgba(23, 150, 164, 0.2);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

html {
    scroll-behavior: smooth;
}

/* ===== NAVIGATION ===== */
.navbar {
    background: rgba(18, 18, 18, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    transition: var(--transition);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.brand-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-nav .nav-link {
    color: var(--light-text) !important;
    font-weight: 500;
    margin: 0 0.5rem;
    transition: var(--transition);
    position: relative;
}

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

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
    transform: translateX(-50%);
}

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

.navbar-nav .nav-link.active {
    color: var(--primary-color) !important;
}

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

.navbar-toggler {
    border: none;
    color: var(--light-text);
}

.navbar-toggler:focus {
    box-shadow: none;
}

/* ===== HERO SECTION ===== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--dark-bg) 0%, #1a1a1a 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23333" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: var(--text-muted);
    max-width: 600px;
}

.hero-badges {
    margin-bottom: 2rem;
}

.badge {
    background: var(--card-bg);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: 0.5rem 1rem;
    margin: 0.25rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.badge:hover {
    background: var(--primary-color);
    color: var(--light-text);
    transform: translateY(-2px);
}

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

.btn {
    padding: 0.75rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    color: var(--light-text);
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--light-text);
    transform: translateY(-3px);
}

/* ===== PROFILE CARD ===== */
.profile-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition);
}

.profile-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.profile-avatar {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--light-text);
}

.profile-info h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.profile-info p {
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

/* ===== SECTIONS ===== */
.section {
    padding: 5rem 0;
    position: relative;
    flex: 1;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--light-text);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

/* ===== ABOUT SECTION ===== */
.about-content h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.about-content h4 {
    color: var(--light-text);
    margin: 1.5rem 0 1rem;
    font-weight: 600;
}

.about-content ul {
    list-style: none;
    padding-left: 0;
}

.about-content ul li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.about-content ul li::before {
    content: '▸';
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

/* Force une seule colonne pour les statistiques sur la page À propos */
#about .about-stats {
    grid-template-columns: 1fr;
}

.stat-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 1.5rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

/* ===== SKILLS SECTION ===== */
.skill-category {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

/* Align actions to bottom inside skill cards */
.card-actions {
    margin-top: auto;
    display: flex;
    justify-content: center;
    width: 100%;
}

.skill-category h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skill-category h3 i {
    font-size: 1.2rem;
}

.skill-list {
    list-style: none;
    padding-left: 0;
}

.skill-list li {
    padding: 0.5rem 0;
    color: var(--text-muted);
    position: relative;
    padding-left: 1.5rem;
}

.skill-list li::before {
    content: '•';
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* ===== PROJECTS SECTION ===== */
.project-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.project-header h3 {
    color: var(--primary-color);
    font-weight: 600;
    margin: 0;
    flex: 1;
}

.project-duration {
    background: var(--gradient-primary);
    color: var(--light-text);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.project-content p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.project-content ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 1.5rem;
}

.project-content ul li {
    padding: 0.25rem 0;
    color: var(--text-muted);
    position: relative;
    padding-left: 1.5rem;
}

.project-content ul li::before {
    content: '→';
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.project-result {
    background: rgba(23, 150, 164, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 10px;
    padding: 1rem;
    color: var(--light-text);
}

/* ===== EXPERIENCE SECTION ===== */
.experience-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
}

.experience-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.experience-header h3 {
    color: var(--primary-color);
    font-weight: 600;
    margin: 0;
}

.experience-period {
    background: var(--gradient-primary);
    color: var(--light-text);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.experience-role {
    color: var(--light-text);
    font-weight: 500;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.experience-tasks {
    list-style: none;
    padding-left: 0;
}

.experience-tasks li {
    padding: 0.25rem 0;
    color: var(--text-muted);
    position: relative;
    padding-left: 1.5rem;
}

.experience-tasks li::before {
    content: '✓';
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* ===== CONTACT SECTION ===== */
.contact-info, .recommendations {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
}

.contact-info:hover, .recommendations:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.contact-info h3, .recommendations h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 0.75rem 0;
}

.contact-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
    width: 20px;
}

.contact-item span, .contact-item a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
}

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

.recommendation-card {
    background: rgba(23, 150, 164, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.recommendation-card h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.recommendation-card p {
    color: var(--text-muted);
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    text-align: center;
    margin-top: auto;
    width: 100%;
}

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



/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .project-header, .experience-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    .skill-category, .project-card, .experience-card {
        padding: 1.5rem;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0F7A85;
}

/* ===== SELECTION ===== */
::selection {
    background: var(--primary-color);
    color: var(--light-text);
}

/* ===== NAVIGATION CARDS ===== */
.nav-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
    text-align: center;
}

.nav-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.nav-card-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
    color: var(--light-text);
}

.nav-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.nav-card p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.nav-card .btn {
    margin-top: auto;
}

/* ===== CONTACT FORM ===== */
.contact-form-container {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
}

.contact-form-container:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.contact-form-container h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.contact-form .form-group {
    margin-bottom: 1.5rem;
}

.contact-form label {
    color: var(--light-text);
    font-weight: 500;
    margin-bottom: 0.5rem;
    display: block;
}

.contact-form .form-control {
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    color: var(--light-text);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: var(--transition);
    width: 100%;
}

.contact-form .form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(23, 150, 164, 0.2);
}

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

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

.contact-form select.form-control {
    cursor: pointer;
}

.contact-form select.form-control option {
    background: var(--dark-bg);
    color: var(--light-text);
}

.contact-form .btn {
    width: 100%;
    padding: 1rem 2rem;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.contact-form .btn i {
    font-size: 1.1rem;
}

/* Form validation styles */
.contact-form .form-control.is-invalid {
    border-color: #dc3545;
    box-shadow: 0 0 0 2px rgba(220, 53, 69, 0.2);
}

.contact-form .form-control.is-valid {
    border-color: #198754;
    box-shadow: 0 0 0 2px rgba(25, 135, 84, 0.2);
}

.invalid-feedback {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.valid-feedback {
    color: #198754;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Form message styles */
.form-message {
    padding: 1rem;
    border-radius: 10px;
    margin-top: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.form-message.alert-success {
    background: rgba(25, 135, 84, 0.1);
    border: 1px solid #198754;
    color: #198754;
}

.form-message.alert-danger {
    background: rgba(220, 53, 69, 0.1);
    border: 1px solid #dc3545;
    color: #dc3545;
}

.form-message i {
    font-size: 1.1rem;
}

/* ===== FOCUS STATES ===== */
.btn:focus, .nav-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}