:root {
    /* Palette professionnelle - Style artisan */
    --color-primary: #1a365d;
    --color-primary-dark: #0f2540;
    --color-primary-light: #2c5282;
    --color-secondary: #e67e22;
    --color-secondary-light: #f39c12;

    --color-bg: #ffffff;
    --color-bg-alt: #f8f9fa;
    --color-bg-dark: #1a365d;

    --color-text: #2d3748;
    --color-text-light: #4a5568;
    --color-text-muted: #718096;
    --color-text-white: #ffffff;

    --color-border: #e2e8f0;
    --color-success: #38a169;

    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;

    /* Spacing */
    --container-width: 1200px;
    --header-height: 70px;
    --top-bar-height: 40px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-primary);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Top Bar */
.top-bar {
    background-color: var(--color-primary);
    color: var(--color-text-white);
    height: var(--top-bar-height);
    display: flex;
    align-items: center;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.top-bar-phone {
    font-weight: 600;
    color: var(--color-secondary-light);
}

.top-bar-phone:hover {
    color: var(--color-text-white);
}

.top-bar i {
    color: var(--color-secondary-light);
}

.desktop-only {
    display: inline;
}

.mobile-only {
    display: none;
}

/* Header */
.header {
    height: var(--header-height);
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.header-container {
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    height: 45px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-primary);
}

.logo-tagline {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

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

.nav-list a {
    color: var(--color-text);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 8px 0;
    position: relative;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: width 0.2s ease;
}

.nav-list a:hover::after {
    width: 100%;
}

.nav-list a:hover {
    color: var(--color-primary);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn .bar {
    width: 24px;
    height: 3px;
    background-color: var(--color-primary);
    border-radius: 2px;
    transition: 0.3s;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    text-align: center;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: #d35400;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

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

.btn-block {
    display: block;
    width: 100%;
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: 2.2rem;
    margin-bottom: 12px;
}

.section-title.text-left {
    text-align: left;
}

.section-subtitle {
    color: var(--color-text-muted);
    font-size: 1.1rem;
}

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

/* Hero Section */
.hero {
    padding: 80px 0 100px;
    background: linear-gradient(135deg, rgba(26, 54, 93, 0.85) 0%, rgba(26, 54, 93, 0.75) 100%),
        url('assets/hero-bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    border-bottom: 1px solid var(--color-border);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 2.8rem;
    margin-bottom: 20px;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 35px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.hero-trust {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.9);
}

.trust-icon {
    color: var(--color-success);
    font-weight: bold;
}

/* Services Section */
.services {
    padding: 80px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.service-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.2s ease;
}

.service-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
    border-color: transparent;
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--color-secondary);
}

.service-card h3 {
    font-size: 1.15rem;
    margin-bottom: 12px;
    color: var(--color-primary);
}

.service-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* About Section */
.about {
    padding: 80px 0;
    background-color: var(--color-bg-alt);
}

.about-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text {
    color: var(--color-text-light);
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
    margin-top: 35px;
}

.feature-item {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.feature-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
    color: var(--color-secondary);
}

.feature-item h4 {
    font-size: 1rem;
    margin-bottom: 4px;
    color: var(--color-primary);
}

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

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.stat-card {
    background: var(--color-primary);
    color: white;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--color-secondary-light);
}

.stat-label {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* Réalisations Section */
.realisations {
    padding: 80px 0;
}

.realisations-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.realisation-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.2s ease;
}

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

.realisation-placeholder {
    height: 180px;
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, #e2e8f0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--color-primary-light);
}

.realisation-info {
    padding: 20px;
}

.realisation-info h4 {
    font-size: 1rem;
    margin-bottom: 5px;
    color: var(--color-primary);
}

.realisation-info p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* Zone d'intervention */
.zone {
    padding: 60px 0;
    background: var(--color-primary);
    color: white;
}

.zone-content {
    text-align: center;
}

.zone .section-title {
    color: white;
    margin-bottom: 15px;
}

.zone-text {
    margin-bottom: 30px;
    font-size: 1.05rem;
    opacity: 0.9;
}

.zone-cities {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.zone-cities span {
    background: rgba(255, 255, 255, 0.15);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background-color: var(--color-bg-alt);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 50px;
}

.contact-info h3,
.contact-form-wrapper h3 {
    font-size: 1.4rem;
    margin-bottom: 30px;
    color: var(--color-primary);
}

.info-item {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
    align-items: flex-start;
}

.info-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    color: var(--color-secondary);
}

.info-item h4 {
    font-size: 1rem;
    margin-bottom: 5px;
    color: var(--color-primary);
}

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

.info-item a {
    color: var(--color-secondary);
}

.info-item a:hover {
    text-decoration: underline;
}

.contact-form-wrapper {
    background: var(--color-bg);
    padding: 35px;
    border-radius: 10px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text);
    background: var(--color-bg);
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}

/* Footer */
.footer {
    background-color: var(--color-primary-dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    margin-bottom: 15px;
}

.footer-brand .logo-name,
.footer-brand .logo-tagline {
    color: white;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    line-height: 1.6;
}

.footer h4 {
    color: white;
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.footer-links ul li,
.footer-services ul li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

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

.footer-services li {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

.footer-contact p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 10px;
    font-size: 0.95rem;
}

.footer-contact a {
    color: var(--color-secondary-light);
}

.footer-contact a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 25px;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* Responsive Design */

/* === Desktop large (> 1024px) === */
/* Par défaut : menu horizontal visible, numéro en texte, pas de hamburger */

/* === Tablettes et petits écrans (max 1024px) === */
@media (max-width: 1024px) {

    /* Le header devient le conteneur de référence pour le menu */
    .header {
        position: sticky;
    }

    /* Passage en menu hamburger - positionné juste sous le header */
    .nav {
        position: absolute;
        top: calc(100% - 1px);
        /* -1px pour éviter le gap subpixel */
        left: 0;
        width: 100%;
        background: var(--color-bg);
        padding: 20px;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
        transform: translateY(-150%);
        opacity: 0;
        transition: 0.3s;
        pointer-events: none;
        z-index: 999;
    }

    .nav.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-list {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-menu-btn.active .bar:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-btn.active .bar:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-btn.active .bar:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
}

/* === Écrans moyens (max 992px) === */
@media (max-width: 992px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-container {
        grid-template-columns: 1fr;
    }

    .about-stats {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
    }

    .realisations-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

/* === Mobile (max 768px) === */
@media (max-width: 768px) {

    .desktop-only {
        display: none;
    }

    .mobile-only {
        display: inline;
    }

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

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

    .hero-trust {
        flex-direction: column;
        gap: 15px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .about-features {
        grid-template-columns: 1fr;
    }

    .about-stats {
        flex-direction: column;
    }

    .realisations-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand .logo {
        justify-content: center;
    }

    .zone-cities {
        gap: 8px;
    }

    .zone-cities span {
        padding: 6px 12px;
        font-size: 0.85rem;
    }
}

/* === Petits mobiles (max 480px) === */
@media (max-width: 480px) {
    .section-title {
        font-size: 1.8rem;
    }

    .hero-title {
        font-size: 1.7rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .contact-form-wrapper {
        padding: 25px 20px;
    }

    .checkbox-label input[type="checkbox"] {
        width: 14px;
        height: 14px;
        transform: translateY(3px);
    }
}


/* RGPD Checkbox */
.checkbox-group {
    margin-bottom: 20px;
}

.checkbox-label {
    display: inline-flex;
    align-items: baseline;
    gap: 8px;
    font-weight: 400;
    font-size: 0.9rem;
    cursor: pointer;
    line-height: 1.5;
    color: var(--color-text-light);
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin: 0;
    cursor: pointer;
    accent-color: var(--color-secondary);
    transform: translateY(4px);
}

.checkbox-label a {
    color: var(--color-secondary);
    text-decoration: underline;
}

.checkbox-label a:hover {
    color: var(--color-primary);
}