:root {
    --primary-color: #004066;
    --secondary-color: #002840;
    --accent-color: #e63946; /* A nice contrast red/orange if needed, or maybe a lighter blue */
    --text-color: #333;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --font-main: 'Inter', sans-serif;
    --transition-speed: 0.3s;
}

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

body {
    font-family: var(--font-main);
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--light-bg);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-speed);
}

ul {
    list-style: none;
}

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

main {
    flex: 1;
    padding: 40px 0;
    margin-top: 40px !important;
    margin-bottom: 40px !important;
}

/* Header & Navbar */
header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

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

.logo img {
    height: 60px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links li {
    display: flex;
    align-items: center;
}

.nav-links a {
    font-weight: 600;
    color: var(--primary-color);
    text-transform: uppercase;
    font-size: 0.9rem;
    position: relative;
    display: flex;
    align-items: center;
    white-space: nowrap;
}

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

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

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

.nav-links a.btn {
    color: var(--white) !important;
    background-color: var(--primary-color) !important;
    padding: 12px 24px;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.nav-links a.btn:hover {
    background-color: transparent !important;
    color: var(--primary-color) !important;
}

.nav-links a i {
    margin-left: 5px;
    font-size: 0.8rem;
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background-color: var(--white);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    min-width: 250px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-speed);
    border-radius: 4px;
    padding: 10px 0;
    z-index: 1001;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li a {
    display: block;
    padding: 10px 20px;
    text-transform: none;
    color: var(--text-color);
}

.dropdown-menu li a:hover {
    background-color: var(--light-bg);
    color: var(--primary-color);
}

/* Mobile Menu Button */
.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 5px;
    transition: all var(--transition-speed);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
    border: 2px solid var(--primary-color);
}

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

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

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

/* Footer */
footer {
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-section img {
    max-width: 200px;
    height: auto;
    margin: 0 auto 20px auto;
    display: block;
}

.footer-section p {
    color: #ccc;
    line-height: 1.6;
    margin-top: 0;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #ccc;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #ccc;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    body.menu-open {
        overflow: hidden;
    }
    
    .nav-links {
        position: fixed;
        right: 0px;
        height: 92vh;
        top: 80px;
        background-color: var(--white);
        width: 70%;
        max-width: 350px;
        transform: translateX(100%);
        transition: transform 0.5s ease-in;
        box-shadow: -2px 0 5px rgba(0,0,0,0.1);
        padding: 50px 0 20px 0;
        opacity: 0;
        visibility: hidden;
        z-index: 999;
        overflow-y: auto;
        overflow-x: hidden;
        list-style: none;
        margin: 0;
        display: block !important;
        flex-direction: unset !important;
        align-items: unset !important;
        gap: 0 !important;
    }

    .nav-links.nav-active {
        transform: translateX(0%);
        opacity: 1;
        visibility: visible;
    }

    .burger {
        display: block;
    }
    
    /* Ensure logo is not affected by mobile menu styles */
    .navbar {
        display: flex !important;
        justify-content: space-between !important;
        align-items: center !important;
        height: 80px !important;
    }
    
    .logo {
        display: flex !important;
        align-items: center !important;
        width: auto !important;
        max-width: none !important;
        flex-shrink: 0 !important;
    }
    
    .logo img {
        height: 60px !important;
        width: auto !important;
        max-width: 100% !important;
        display: block !important;
        object-fit: contain !important;
    }
    
    .logo a {
        display: flex !important;
        align-items: center !important;
        width: auto !important;
        padding: 0 !important;
        text-align: left !important;
    }
    
    .nav-links li {
        width: 100% !important;
        display: block !important;
        text-align: left;
        position: relative;
        margin: 0;
        padding: 0;
        border-bottom: 1px solid #f0f0f0;
        align-items: unset !important;
    }
    
    .nav-links li a {
        display: block !important;
        padding: 15px 20px;
        width: 100%;
        text-align: left;
        box-sizing: border-box;
        justify-content: unset !important;
        white-space: normal !important;
    }
    
    .dropdown {
        width: 100%;
        display: block;
    }
    
    .dropdown > a {
        width: 100%;
        display: block;
        text-align: left;
        position: relative;
    }
    
    .dropdown-menu {
        position: relative;
        box-shadow: none;
        display: none;
        width: 100%;
        text-align: left;
        margin: 0;
        padding: 0;
        background-color: #f8f9fa;
        transform: none;
        opacity: 1;
        visibility: visible;
        list-style: none;
    }
    
    .dropdown.active .dropdown-menu {
        display: block;
    }
    
    .dropdown-menu li {
        width: 100%;
        border-bottom: 1px solid #e0e0e0;
    }
    
    .dropdown-menu li:last-child {
        border-bottom: none;
    }
    
    .dropdown-menu li a {
        padding: 12px 20px 12px 40px;
        text-align: left;
        font-size: 0.85rem;
        display: block;
        width: 100%;
        box-sizing: border-box;
    }
    
    /* Mobile: Convert 2-column layouts to single column */
    .content,
    .roof-image-section,
    section[style*="grid-template-columns: 1fr 1fr"],
    div[style*="grid-template-columns: 1fr 1fr"] {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: 30px !important;
    }
    
    /* On mobile, put images above text for better visual flow */
    .roof-image-section .roof-image,
    .content .image {
        order: -1;
    }
    
    .roof-image-section .roof-content,
    .content .text {
        order: 0;
    }
    
    /* Fix horizontal scroll on mobile - reduce padding and adjust widths */
    .container {
        padding: 0 15px !important;
    }
    
    main {
        padding: 20px 0 !important;
    }
    
    /* Reduce padding on sections for mobile */
    section[style*="padding: 40px"],
    section[style*="padding: 50px"],
    .urgence-intro,
    .bachage-section,
    .securite-section,
    .contact-urgence {
        padding: 20px 15px !important;
    }
    
    /* Ensure all content fits within viewport */
    article,
    section {
        max-width: 100% !important;
        overflow-x: hidden !important;
    }
    
    /* Fix images that might overflow */
    img {
        max-width: 100% !important;
        height: auto !important;
    }
    
    /* Fix text elements with max-width */
    p[style*="max-width"],
    div[style*="max-width"] {
        max-width: 100% !important;
    }
    
    /* Fix grid gaps that might be too large */
    .roof-image-section[style*="gap: 40px"] {
        gap: 20px !important;
    }
    
    /* Ensure buttons don't overflow */
    .btn {
        max-width: 100% !important;
        box-sizing: border-box !important;
        word-wrap: break-word !important;
    }
    
    /* Fix solution-intro and other intro sections */
    .solution-intro,
    .client-intro,
    .roof-intro {
        padding: 0 15px !important;
    }
    
    /* Fix h2 and h3 font sizes on mobile */
    h2[style*="font-size: 2.5rem"] {
        font-size: 1.8rem !important;
    }
    
    h3[style*="font-size: 1.8rem"],
    h3[style*="font-size: 2rem"] {
        font-size: 1.5rem !important;
    }
    
    /* Fix lead paragraphs */
    .lead[style*="font-size: 1.2rem"] {
        font-size: 1rem !important;
    }
    
    /* Footer logo adjustments on mobile */
    .footer-section img {
        max-width: 150px !important;
        margin-bottom: 15px !important;
    }
    
    /* Increase spacing for return button on diagnostic page */
    .solution-buttons {
        margin-top: 120px !important;
        margin-bottom: 60px !important;
        display: flex !important;
        flex-direction: column !important;
        gap: 30px !important;
        align-items: center !important;
    }
    
    .solution-buttons .btn {
        margin-right: 0 !important;
        margin-bottom: 0 !important;
        width: 100% !important;
        max-width: 300px !important;
        display: block !important;
    }
    
    /* Specific spacing for return button */
    .solution-buttons .btn-return {
        margin-top: 20px !important;
    }
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: #fff;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 10000;
    padding: 20px;
    transform: translateY(100%);
    transition: transform 0.3s ease-in-out;
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-banner-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.cookie-banner-text {
    flex: 1;
    min-width: 250px;
}

.cookie-banner-text p {
    margin: 0;
    color: #333;
    font-size: 14px;
    line-height: 1.6;
    display: flex;
    align-items: center;
}

.cookie-banner-buttons {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
}

.btn-cookie {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    white-space: nowrap;
}

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

.btn-accept:hover {
    background-color: var(--secondary-color);
    transform: translateY(-1px);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.btn-refuse {
    background-color: #f0f0f0;
    color: #333;
}

.btn-refuse:hover {
    background-color: #e0e0e0;
    transform: translateY(-1px);
}

@media (max-width: 768px) {
    .cookie-banner-content {
        flex-direction: column;
        text-align: center;
    }
    
    .cookie-banner-buttons {
        width: 100%;
        justify-content: center;
    }
    
    .btn-cookie {
        flex: 1;
        max-width: 150px;
    }
}