/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f7fa;
    color: #333;
    overflow-x: hidden;
}

/* ===== NAVIGATION ===== */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 5%;
    background-color: white;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    padding: 0.5rem 5%;
    background-color: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    height: 50px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1e3c72;
    text-decoration: none;
}

.logo-text span {
    color: #f39c12;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: #2d3436;
    font-weight: 500;
    font-size: 1rem;
    transition: color 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: #f39c12;
}

.nav-links a.active {
    border-bottom: 3px solid #f39c12;
    padding-bottom: 0.3rem;
}

.mobile-menu {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #1e3c72;
}

/* ===== BOUTONS ===== */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: #f39c12;
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(243,156,18,0.4);
}

.btn:hover {
    background-color: #e67e22;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(243,156,18,0.5);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid white;
    box-shadow: none;
    margin-left: 1rem;
}

.btn-outline:hover {
    background-color: white;
    color: #1e3c72;
    border-color: white;
}

/* ===== PAGE HEADER (sous-pages) ===== */
.page-header {
    height: 40vh;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    margin-top: 70px;
    position: relative;
    overflow: hidden;
}

.page-header h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 10px rgba(0,0,0,0.3);
}

.page-header p {
    font-size: 1.3rem;
    max-width: 600px;
    margin: 0 auto;
    text-shadow: 1px 1px 5px rgba(0,0,0,0.3);
}

/* ===== SECTIONS ===== */
.section {
    padding: 5rem 5%;
}

.section-alt {
    background-color: white;
}

.section-title {
    text-align: center;
    font-size: 2.8rem;
    color: #1e3c72;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #1e3c72, #f39c12);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #636e72;
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== FOOTER ===== */
footer {
    background-color: #1e3c72;
    color: white;
    padding: 4rem 5% 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #f39c12;
}

.footer-section p {
    color: #b2bec3;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.8rem;
    color: #b2bec3;
}

.footer-section ul li i {
    color: #f39c12;
    margin-right: 0.5rem;
}

.footer-section ul li a {
    color: #b2bec3;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #f39c12;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: #f39c12;
    transform: translateY(-3px);
}

.copyright {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #b2bec3;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        padding: 2rem;
        text-align: center;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        gap: 1.5rem;
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu {
        display: block;
    }

    .logo-img {
        height: 40px;
    }

    .logo-text {
        font-size: 1.2rem;
    }

    .page-header h1 {
        font-size: 2.5rem;
    }

    .page-header p {
        font-size: 1rem;
        padding: 0 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
    }
}