/* VARIABLES */
:root {
    --primary-blue: #003366; /* Bleu professionnel */
    --light-gray: #f5f5f5;
    --silver: #C0C0C0;
    --white: #ffffff;
    --text-dark: #333333;
    --text-light: #666666;
    --transition: all 0.3s ease;
}

/* RESET & BASE STYLES */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Montserrat', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--white);
    color: var(--text-dark);
    line-height: 1.6;
}

h1, h2, h3, h4, .logo h2 {
    font-family: 'Playfair Display', serif;
    color: var(--primary-blue);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    width: 85%;
    max-width: 1200px;
    margin: 0 auto;
}

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.divider {
    height: 3px;
    width: 60px;
    background-color: var(--silver);
    margin: 0 auto;
}

/* BUTTONS */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: var(--white);
}

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

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

.btn-outline:hover {
    background-color: var(--primary-blue);
    color: var(--white);
}

/* HEADER & NAVIGATION */
.header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 110px;
}

.logo-img {
    max-height: 90px;
    width: auto;
    display: block;
}

.nav-menu ul {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-menu ul li a {
    font-weight: 600;
    color: var(--text-dark);
    transition: var(--transition);
}

.nav-menu ul li a:hover {
    color: var(--primary-blue);
}

.hamburger {
    display: none;
    font-size: 1.5rem;
    color: var(--primary-blue);
    cursor: pointer;
}

/* HERO SECTION */
.hero {
    height: 100vh;
    background: url('https://images.unsplash.com/photo-1519225421980-715cb0215aed?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
    position: relative;
    display: flex;
    align-items: center;
    text-align: center;
    margin-top: 110px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 51, 102, 0.7); /* Bleu primaire avec opacité */
}

.hero-content {
    position: relative;
    z-index: 1;
    color: var(--white);
}

.hero-content h1 {
    color: var(--white);
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    font-weight: 300;
}

/* SERVICES SECTION */
.services {
    background-color: var(--light-gray);
}

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

.service-card {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.service-card i {
    color: var(--silver);
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.service-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* WHY US SECTION */
.why-us {
    background-color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.feature-item .icon-box {
    width: 70px;
    height: 70px;
    background-color: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 20px;
    transition: var(--transition);
}

.feature-item:hover .icon-box {
    background-color: var(--silver);
    transform: rotateY(180deg);
}

.feature-item h4 {
    margin-bottom: 10px;
}

.feature-item p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* QUOTE SECTION */
.quote {
    background-color: var(--light-gray);
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

#quote-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group-full {
    grid-column: 1 / -1;
}

input, select, textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.95rem;
    transition: var(--transition);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 5px rgba(0, 51, 102, 0.2);
}

.btn-submit {
    width: 100%;
    font-size: 1.1rem;
    padding: 15px;
}

/* CONTACT SECTION */
.contact {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 60px 0;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 60px;
    text-align: center;
    flex-wrap: wrap;
}

.contact-item i {
    font-size: 2rem;
    color: var(--silver);
    margin-bottom: 15px;
}

.contact-item h3 {
    color: var(--white);
    margin-bottom: 10px;
}

/* FOOTER */
.footer {
    background-color: #001f3f;
    color: var(--silver);
    padding-top: 60px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    color: var(--white);
    margin-bottom: 15px;
}

.footer-brand p {
    max-width: 400px;
    font-size: 0.9rem;
}

.footer-links a {
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-bottom {
    background-color: #001122;
    text-align: center;
    padding: 20px 0;
    font-size: 0.85rem;
}

/* RESPONSIVE DESIGN */
@media screen and (max-width: 992px) {
    .hero-content h1 {
        font-size: 2.8rem;
    }
}

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

    .nav-menu {
        position: absolute;
        top: 110px;
        left: -100%;
        width: 100%;
        background-color: var(--white);
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        transition: 0.3s;
    }

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

    .nav-menu ul {
        flex-direction: column;
        padding: 30px 0;
        gap: 20px;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    #quote-form {
        grid-template-columns: 1fr;
    }

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