/* ========================================
   RESET & VARIABLES
   ======================================== */

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

:root {
    --primary-color: #1a1a1a;
    --secondary-color: #c9a961;
    --accent-color: #8b7355;
    --text-color: #333333;
    --text-light: #666666;
    --bg-light: #f8f7f4;
    --white: #ffffff;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Lato', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
}

h1, h2, h3, h4 {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
    line-height: 1.2;
}

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

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: var(--transition);
    will-change: transform;
    transform: translateZ(0);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-image {
    height: 50px;
    width: 50px;
    object-fit: contain;
    background: transparent;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 400;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: var(--transition);
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

.hero {
    margin-top: 80px;
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    padding: 60px 20px;
    background: linear-gradient(135deg, #f8f7f4 0%, #ffffff 100%);
}

.hero-content {
    flex: 1;
    max-width: 600px;
    padding-right: 60px;
    animation: fadeInLeft 1s ease-out;
}

.hero-title {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--secondary-color);
    font-family: 'Playfair Display', serif;
    margin-bottom: 20px;
    font-style: italic;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.8;
}

.cta-button {
    display: inline-block;
    padding: 18px 45px;
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
    box-shadow: var(--shadow);
    will-change: transform;
}

.cta-button:hover {
    background: var(--secondary-color);
    transform: translate3d(0, -3px, 0);
    box-shadow: var(--shadow-hover);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 1s ease-out;
}

.profile-image {
    width: 400px;
    height: 500px;
    object-fit: cover;
    object-position: center;
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    will-change: transform;
}

.profile-image:hover {
    transform: scale3d(1.02, 1.02, 1);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
}

/* ========================================
   SECTIONS GÉNÉRALES
   ======================================== */

section {
    padding: 100px 20px;
}

.section-title {
    font-size: 2.8rem;
    text-align: center;
    margin-bottom: 60px;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 20px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--secondary-color);
}

/* ========================================
   PRÉSENTATION
   ======================================== */

.presentation {
    background: var(--white);
}

.presentation-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    max-width: 1000px;
    margin: 0 auto;
    align-items: center;
}

.presentation-text p {
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--text-light);
    margin-bottom: 20px;
}

.competences {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.competences h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    color: var(--primary-color);
}

.competences-list {
    list-style: none;
}

.competences-list li {
    padding: 12px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    color: var(--text-color);
    font-size: 1.05rem;
    position: relative;
    padding-left: 25px;
}

.competences-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

.competences-list li:last-child {
    border-bottom: none;
}

/* ========================================
   EXPÉRIENCES - TIMELINE
   ======================================== */

.experiences {
    background: var(--bg-light);
}

.timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    padding-left: 50px;
}

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

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    padding-left: 40px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -44px;
    top: 0;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--secondary-color);
    border: 3px solid var(--bg-light);
}

.timeline-date {
    font-weight: 700;
    color: var(--secondary-color);
    font-size: 0.95rem;
    margin-bottom: 10px;
    letter-spacing: 0.5px;
}

.timeline-content {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    will-change: transform;
}

.timeline-content:hover {
    transform: translate3d(10px, 0, 0);
    box-shadow: var(--shadow-hover);
}

.timeline-content h3 {
    font-size: 1.4rem;
    margin-bottom: 8px;
    color: var(--primary-color);
}

.timeline-location {
    color: var(--accent-color);
    font-style: italic;
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.timeline-content p {
    color: var(--text-light);
    line-height: 1.7;
}

.timeline-results {
    list-style: none;
    padding-left: 0;
    margin-top: 15px;
}

.timeline-results li {
    padding: 8px 0 8px 20px;
    position: relative;
    color: var(--text-color);
    line-height: 1.7;
}

.timeline-results li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
    font-size: 1.4rem;
    line-height: 1.2;
}

/* ========================================
   EXPERTISES SECTION
   ======================================== */

.expertises {
    background: var(--white);
}

.expertises-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.expertise-card {
    background: var(--bg-light);
    padding: 35px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
    will-change: transform;
}

.expertise-card:hover {
    transform: translate3d(0, -8px, 0);
    box-shadow: var(--shadow-hover);
}

.expertise-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.expertise-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.expertise-card p {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
}

.expertise-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.tag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--white);
    color: var(--secondary-color);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid var(--secondary-color);
}

/* ========================================
   CONTACT
   ======================================== */

.contact {
    background: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1100px;
    margin: 0 auto;
    align-items: center;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    border-radius: 12px;
    flex-shrink: 0;
}

.contact-item h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.contact-item p {
    color: var(--text-light);
    line-height: 1.6;
}

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

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

.contact-form-container {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid transparent;
    border-radius: 8px;
    font-family: 'Lato', sans-serif;
    font-size: 1rem;
    background: var(--white);
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.contact-form textarea {
    resize: vertical;
    min-height: 150px;
}

.submit-button {
    padding: 15px 40px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
    box-shadow: var(--shadow);
    will-change: transform;
}

.submit-button:hover {
    background: var(--secondary-color);
    transform: translate3d(0, -2px, 0);
    box-shadow: var(--shadow-hover);
}

.submit-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-message {
    display: none;
    margin-top: 20px;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
}

.form-message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 40px 20px;
    text-align: center;
}

.footer p {
    margin-bottom: 10px;
}

.footer-note {
    font-size: 0.9rem;
    opacity: 0.7;
}

/* ========================================
   ANIMATIONS
   ======================================== */

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@media (max-width: 992px) {
    .hero {
        flex-direction: column;
        text-align: center;
    }

    .hero-content {
        padding-right: 0;
        margin-bottom: 40px;
    }

    .hero-title {
        font-size: 3rem;
    }

    .profile-image {
        width: 300px;
        height: 400px;
    }

    .presentation-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .timeline {
        padding-left: 30px;
    }

    .timeline-item {
        padding-left: 30px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow);
        padding: 30px 0;
    }

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

    .hamburger {
        display: flex;
    }

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

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

    .section-title {
        font-size: 2.2rem;
    }

    .timeline::before {
        left: 0;
    }

    .timeline {
        padding-left: 20px;
    }

    .timeline-item {
        padding-left: 25px;
    }

    .timeline-item::before {
        left: -24px;
    }

    section {
        padding: 60px 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .cta-button {
        padding: 15px 35px;
    }

    .profile-image {
        width: 250px;
        height: 350px;
    }

    .contact-form-container {
        padding: 25px;
    }
}