/* CSS Variables */
:root {
    --primary-bg: #ffffff;
    --secondary-bg: #f8f9fa;
    --text-color: #333333;
    --text-light: #666666;
    --accent-color: #608abf;
    --accent-hover: #4a6fa5;
    --accent-dark: #2c3e50;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 10px 20px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    --font-main: 'Inter', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--primary-bg);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--white);
    box-shadow: 0 4px 10px rgba(96, 138, 191, 0.3);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(96, 138, 191, 0.4);
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.8rem;
    background-color: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    border-radius: 4px;
}

.btn-small:hover {
    background-color: var(--accent-color);
    color: var(--white);
}

/* Header */
/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 1000;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.04);
    padding: 18px 0;
    transition: var(--transition);
}

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

.logo {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--accent-dark);
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
}

.logo-dot {
    color: var(--accent-color);
    font-size: 2rem;
    line-height: 0;
    margin-left: 2px;
}

.nav-list {
    display: flex;
    gap: 35px;
    align-items: center;
}

.nav-link {
    font-weight: 500;
    position: relative;
    color: var(--text-color);
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.nav-link:not(.nav-cta)::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--accent-color);
    transition: width 0.3s ease;
    border-radius: 2px;
}

.nav-link:not(.nav-cta):hover {
    color: var(--accent-color);
}

.nav-link:not(.nav-cta):hover::after {
    width: 20px;
}

.nav-cta {
    background-color: var(--accent-color);
    color: var(--white) !important;
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: 600;
    box-shadow: 0 4px 10px rgba(96, 138, 191, 0.25);
    transition: all 0.3s ease;
}

.nav-cta:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(96, 138, 191, 0.35);
}

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--accent-dark);
    transition: var(--transition);
    border-radius: 3px;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px;
    background: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-image-container {
    width: 180px;
    height: 180px;
    margin-bottom: 25px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--white);
    box-shadow: 0 10px 25px rgba(96, 138, 191, 0.25);
    position: relative;
}

.hero-profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    transition: var(--transition);
}

.hero-image-container:hover .hero-profile-img {
    transform: scale(1.05);
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
    color: var(--accent-dark);
    font-weight: 800;
}

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

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* Sections General */
.section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 70px;
    position: relative;
    padding-bottom: 15px;
    color: var(--accent-dark);
    font-weight: 700;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

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

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: var(--text-color);
}

.interests,
.languages {
    background-color: var(--secondary-bg);
    padding: 25px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.interests h3,
.languages h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--accent-dark);
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 10px;
}

.lang-list li {
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
}

/* Skills Section */
.skills {
    background-color: var(--secondary-bg);
}

.skills-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.skill-category {
    background-color: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 4px solid var(--accent-color);
}

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

.skill-category h3 {
    margin-bottom: 20px;
    color: var(--accent-dark);
    font-size: 1.2rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tags span {
    background-color: #eef2f7;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--accent-dark);
    transition: var(--transition);
}

.skill-tags span:hover {
    background-color: var(--accent-color);
    color: var(--white);
}

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

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 2px;
    background-color: #e0e0e0;
    top: 0;
    bottom: 0;
    left: 20px;
    margin-left: -1px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    background-color: inherit;
    width: 100%;
    margin-bottom: 40px;
}

.timeline-item::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    right: auto;
    left: 12px;
    background-color: var(--white);
    border: 4px solid var(--accent-color);
    top: 20px;
    border-radius: 50%;
    z-index: 1;
    transition: var(--transition);
}

.timeline-item:hover::after {
    background-color: var(--accent-color);
    transform: scale(1.2);
}

.timeline-date {
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 8px;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.timeline-content {
    padding: 25px;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    border: 1px solid #f0f0f0;
    transition: var(--transition);
}

.timeline-content:hover {
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}

.timeline-content h3 {
    margin-bottom: 5px;
    color: var(--accent-dark);
    font-size: 1.3rem;
}

.company {
    display: block;
    font-style: italic;
    color: var(--text-light);
    margin-bottom: 15px;
    font-weight: 500;
}

/* Projects Section (Réalisations) */
.projects {
    background-color: var(--secondary-bg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.project-card {
    background-color: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.project-image {
    height: 220px;
    background-color: #e0e0e0;
    overflow: hidden;
    position: relative;
}

.placeholder-img {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.project-info {
    padding: 30px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-title {
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: var(--accent-dark);
}

.project-desc {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 0.95rem;
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 25px;
}

.project-tags span {
    background-color: #f0f4f8;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--accent-dark);
    font-weight: 600;
    text-transform: uppercase;
}

/* Education Section */
.education {
    background-color: var(--white);
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.edu-card {
    background-color: var(--white);
    padding: 35px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border: 1px solid #f0f0f0;
}

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

.edu-year {
    color: var(--accent-color);
    font-weight: 700;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.edu-card h3 {
    color: var(--accent-dark);
    margin-bottom: 10px;
}

.school {
    display: block;
    margin-top: 10px;
    color: var(--text-light);
    font-weight: 500;
}

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

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    background-color: var(--white);
    padding: 50px;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 35px;
    padding-right: 30px;
    border-right: 1px solid #f0f0f0;
}

.contact-item h3 {
    color: var(--accent-color);
    margin-bottom: 8px;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-item p {
    font-size: 1.1rem;
    color: var(--accent-dark);
    font-weight: 500;
}

.contact-form {
    background-color: transparent;
    padding: 0;
    box-shadow: none;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--accent-dark);
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #f0f0f0;
    border-radius: 6px;
    font-family: inherit;
    transition: var(--transition);
    background-color: #fdfdfd;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    background-color: var(--white);
}

.contact-form button {
    width: auto;
    min-width: 200px;
}

/* Footer */
.footer {
    background-color: var(--accent-dark);
    color: var(--white);
    padding: 60px 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 25px;
    align-items: center;
}

.social-links {
    display: flex;
    gap: 25px;
}

.social-links a {
    color: var(--white);
    opacity: 0.7;
    font-size: 1.1rem;
    transition: var(--transition);
}

.social-links a:hover {
    opacity: 1;
    color: var(--accent-color);
    transform: translateY(-3px);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 900px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
        padding: 30px;
    }

    .contact-info {
        border-right: none;
        border-bottom: 1px solid #f0f0f0;
        padding-right: 0;
        padding-bottom: 30px;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    .nav-list {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 10px rgba(0, 0, 0, 0.1);
        padding: 30px 0;
    }

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

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .timeline::after {
        left: 20px;
    }

    .timeline-item {
        padding-left: 50px;
        padding-right: 0;
    }

    .section {
        padding: 60px 0;
    }
}