/* ============================================
   ÉCHAFAUDAGE ROANNE - STYLES PRINCIPAUX
   ============================================ */

:root {
    --primary: #003B73;
    --primary-light: #0056A6;
    --secondary: #E67E22;
    --dark: #1A1A1A;
    --gray-dark: #2C3E50;
    --gray: #7F8C8D;
    --gray-light: #BDC3C7;
    --light: #ECF0F1;
    --white: #FFFFFF;
    --success: #27AE60;
    --warning: #F39C12;
}

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

body {
    font-family: 'Roboto', sans-serif;
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
    background: var(--white);
}

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

.top-bar {
    background: var(--dark);
    color: white;
    padding: 0.8rem 5%;
    font-size: 0.9rem;
}

.top-bar-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.top-bar-info {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.top-bar-info span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

nav {
    background: white;
    padding: 1rem 5%;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    color: var(--dark);
}

.logo-img {
    width: 50px;
    height: 50px;
    background: var(--primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.5rem;
    color: white;
}

.logo-text h1 {
    font-family: 'Barlow', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
}

.logo-text p {
    font-size: 0.75rem;
    color: var(--gray);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    color: var(--gray-dark);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    padding: 0.5rem 0;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary);
    transition: width 0.3s ease;
}

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

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

.nav-links a.active {
    color: var(--primary);
}

.nav-links a.active::after {
    width: 100%;
}

.nav-cta {
    background: var(--secondary);
    color: white;
    padding: 0.9rem 1.8rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(230, 126, 34, 0.3);
}

.nav-cta:hover {
    background: #D35400;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(230, 126, 34, 0.4);
}

/* Menu Burger */
.burger-menu {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.burger-menu span {
    width: 25px;
    height: 3px;
    background: var(--dark);
    transition: all 0.3s ease;
    border-radius: 3px;
}

.burger-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.burger-menu.active span:nth-child(2) {
    opacity: 0;
}

.burger-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ============================================
   SECTIONS COMMUNES
   ============================================ */

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    background: var(--secondary);
    color: white;
    padding: 0.5rem 1.2rem;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.section-title {
    font-family: 'Barlow', sans-serif;
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.15rem;
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto;
}

/* ============================================
   BOUTONS
   ============================================ */

.btn-primary {
    background: var(--secondary);
    color: white;
    padding: 1.1rem 2.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.05rem;
    transition: all 0.3s ease;
    display: inline-block;
    box-shadow: 0 4px 15px rgba(230, 126, 34, 0.4);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: #D35400;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(230, 126, 34, 0.5);
}

.btn-secondary {
    background: transparent;
    color: white;
    padding: 1.1rem 2.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.05rem;
    border: 2px solid white;
    transition: all 0.3s ease;
    display: inline-block;
}

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

.btn-white {
    background: white;
    color: var(--secondary);
    padding: 1.1rem 2.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.05rem;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-white:hover {
    background: var(--light);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

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

.hero {
    background: linear-gradient(135deg, var(--gray-dark) 0%, var(--primary) 100%);
    padding: 5rem 5% 6rem;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-family: 'Barlow', sans-serif;
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-content h1 span {
    color: var(--secondary);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    font-weight: 400;
}

.hero-badges {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.badge {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 0.7rem 1.3rem;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 600;
    font-size: 0.95rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-stats {
    background: white;
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-family: 'Barlow', sans-serif;
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--gray);
    font-size: 0.95rem;
    font-weight: 500;
}

/* ============================================
   FORMULAIRE DE CONTACT
   ============================================ */

.contact {
    padding: 6rem 5%;
    background: white;
}

.contact-container {
    max-width: 1400px;
    margin: 0 auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info {
    background: var(--primary);
    color: white;
    padding: 3rem;
    border-radius: 10px;
}

.contact-info h3 {
    font-family: 'Barlow', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-item:last-child {
    border-bottom: none;
}

.contact-item-icon {
    width: 40px;
    height: 40px;
    background: var(--secondary);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item-content h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.contact-item-content p {
    opacity: 0.9;
    font-size: 0.95rem;
}

.contact-form {
    background: var(--light);
    padding: 3rem;
    border-radius: 10px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    color: var(--dark);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.9rem 1.2rem;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-family: 'Roboto', sans-serif;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    background: white;
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.submit-btn {
    width: 100%;
    background: var(--secondary);
    color: white;
    padding: 1.1rem;
    border: none;
    border-radius: 6px;
    font-family: 'Roboto', sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background: #D35400;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(230, 126, 34, 0.3);
}

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 6px;
    display: none;
}

.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(--dark);
    color: white;
    padding: 4rem 5% 2rem;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand h3 {
    font-family: 'Barlow', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: var(--gray-light);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.footer-certifications {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.certification-badge {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
}

.footer-section h4 {
    font-family: 'Barlow', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

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

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

.footer-section ul li a {
    color: var(--gray-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--gray-light);
    font-size: 0.9rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-legal {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.footer-legal a {
    color: var(--gray-light);
    text-decoration: none;
}

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

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

@media (max-width: 1024px) {
    .top-bar-container {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .top-bar-info {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .burger-menu {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: white;
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        transition: left 0.3s ease;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        overflow-y: auto;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-links a {
        font-size: 1.2rem;
        padding: 1rem 0;
    }
    
    .nav-cta {
        width: 100%;
        text-align: center;
        margin-top: 1rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
}

/* ============================================
   SMOOTH SCROLL
   ============================================ */

html {
    scroll-behavior: smooth;
}