/* ==========================================================================
   BRC Maçonnerie - Styles CSS Personnalisés (Mobile-First & Premium)
   ========================================================================== */

/* --- Variables de Conception (Design Tokens) --- */
:root {
    --primary: #d97706;        /* Orange brique/chaleureux pour la construction */
    --primary-hover: #b45309;  /* Teinte plus sombre au survol */
    --secondary: #0f172a;      /* Bleu ardoise foncé pour la structure et le texte principal */
    --secondary-hover: #1e293b;
    --accent: #3b82f6;         /* Bleu acier discret */
    
    /* Couleurs de fond */
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    
    /* Couleurs de texte */
    --text-main: #334155;
    --text-muted: #64748b;
    --text-light: #cbd5e1;
    --text-white: #ffffff;
    
    /* Typographies */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Outfit', sans-serif;
    
    /* Espacements, Bordures & Ombres */
    --border-radius: 8px;
    --border-radius-lg: 16px;
    --box-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.08);
    --box-shadow-hover: 0 20px 40px -15px rgba(15, 23, 42, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Layout */
    --container-width: 1200px;
    --header-height: 80px;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--text-main);
    background-color: var(--bg-white);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--secondary);
    font-weight: 700;
    line-height: 1.25;
}

p {
    margin-bottom: 1rem;
}

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

ul {
    list-style: none;
}

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

/* --- Layout Utility --- */
.container {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding-left: 20px;
    padding-right: 20px;
    max-width: var(--container-width);
}

.section-padding {
    padding-top: 60px;
    padding-bottom: 60px;
}

.bg-light {
    background-color: var(--bg-light);
}

.bg-dark {
    background-color: var(--bg-dark);
}

.text-white {
    color: var(--text-white);
}

.text-accent {
    color: var(--primary) !important;
}

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

.text-italic {
    font-style: italic;
}

.max-w-600 {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.margin-top-40 {
    margin-top: 40px;
}

/* Grids */
.grid {
    display: grid;
    gap: 30px;
}

.grid-2 {
    grid-template-columns: 1fr;
}

.grid-3 {
    grid-template-columns: 1fr;
}

/* Section Header standard */
.section-header {
    margin-bottom: 45px;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    margin-bottom: 10px;
}

.section-title {
    font-size: 2.2rem;
    margin-bottom: 15px;
}

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

/* --- Boutons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: var(--font-body);
    font-weight: 600;
    padding: 12px 28px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 0.95rem;
}

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

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

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

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

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

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

.btn-block {
    width: 100%;
}

.btn-desktop-only {
    display: none; /* Masqué sur mobile */
}

/* --- Header / Navigation --- */
.main-header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(15, 23, 42, 0.08);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    height: var(--header-height);
    display: flex;
    align-items: center;
}

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

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

.logo-accent {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.8rem;
    color: var(--secondary);
    line-height: 1;
}

.logo-text {
    font-family: var(--font-body);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-muted);
    font-weight: 600;
    margin-top: 2px;
}

/* Navigation Menu */
.nav-menu {
    position: fixed;
    top: var(--header-height);
    left: -100%;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background-color: var(--bg-white);
    transition: var(--transition);
    padding: 40px 20px;
    z-index: 999;
    border-top: 1px solid rgba(15, 23, 42, 0.05);
}

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

.nav-menu ul {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.nav-menu a {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--secondary);
    display: block;
}

.nav-menu a.active, .nav-menu a:hover {
    color: var(--primary);
    padding-left: 8px;
    border-left: 3px solid var(--primary);
}

/* Mobile Toggle */
.mobile-nav-toggle {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 26px;
    height: 18px;
}

.mobile-nav-toggle .bar {
    height: 3px;
    width: 100%;
    background-color: var(--secondary);
    border-radius: 3px;
    transition: var(--transition);
}

.mobile-nav-toggle.active .bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.mobile-nav-toggle.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* --- Hero Section --- */
.hero-section {
    padding-top: calc(var(--header-height) + 40px);
    padding-bottom: 60px;
    background-image: linear-gradient(rgba(15, 23, 42, 0.8), rgba(15, 23, 42, 0.9)), url('assets/images/hero_masonry.jpg');
    background-size: cover;
    background-position: center;
    color: var(--text-white);
    position: relative;
}

.hero-content {
    max-width: 100%;
    margin-bottom: 50px;
}

.hero-subtitle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(217, 119, 6, 0.2);
    color: var(--primary);
    padding: 6px 14px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 20px;
    border: 1px solid rgba(217, 119, 6, 0.3);
}

.hero-title {
    color: var(--text-white);
    font-size: 2.6rem;
    margin-bottom: 20px;
}

.hero-lead {
    font-size: 1.15rem;
    color: var(--text-light);
    margin-bottom: 30px;
}

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

.hero-buttons .btn-secondary {
    background-color: transparent;
    border: 2px solid var(--text-white);
    color: var(--text-white);
}

.hero-buttons .btn-secondary:hover {
    background-color: var(--text-white);
    color: var(--secondary);
}

/* Hero Feature Cards */
.hero-features {
    display: grid;
    gap: 20px;
}

.hero-feature-card {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 24px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.hero-feature-card:hover {
    background-color: rgba(255, 255, 255, 0.08);
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 12px;
}

.hero-feature-card h3 {
    color: var(--text-white);
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.hero-feature-card p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* --- About Section --- */
.about-image-wrapper {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.about-image {
    width: 100%;
    height: 350px;
    object-fit: cover;
    transition: var(--transition);
}

.about-image-wrapper:hover .about-image {
    transform: scale(1.05);
}

.about-badge {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background-color: var(--primary);
    color: var(--text-white);
    padding: 16px 24px;
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

.badge-number {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    font-family: var(--font-body);
}

.badge-text {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    text-align: center;
}

.about-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.about-key-points {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 25px;
}

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

.point-icon {
    width: 32px;
    height: 32px;
    background-color: rgba(217, 119, 6, 0.1);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-weight: 700;
}

.point-item h4 {
    font-family: var(--font-body);
    font-size: 1.1rem;
    margin-bottom: 3px;
}

.point-item p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* --- Services Section --- */
.service-card {
    background-color: var(--bg-white);
    padding: 35px 30px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid rgba(15, 23, 42, 0.02);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--box-shadow-hover);
    border-color: rgba(217, 119, 6, 0.1);
}

.service-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(217, 119, 6, 0.1);
    color: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 25px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background-color: var(--primary);
    color: var(--bg-white);
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.service-list {
    border-top: 1px solid rgba(15, 23, 42, 0.06);
    padding-top: 15px;
}

.service-list li {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--secondary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.service-list li::before {
    content: "■";
    color: var(--primary);
    font-size: 0.7rem;
}

.services-cta p {
    font-weight: 500;
    margin-bottom: 15px;
}

/* --- Realisations / Portfolio Section --- */
.portfolio-grid {
    display: grid;
    gap: 30px;
    grid-template-columns: 1fr;
}

.portfolio-item {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    height: 300px;
}

.portfolio-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-info {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0));
    color: var(--text-white);
    transform: translateY(60px);
    transition: var(--transition);
}

.portfolio-info h3 {
    color: var(--text-white);
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.portfolio-info p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 0;
    opacity: 0;
    transition: var(--transition);
    transition-delay: 0.1s;
}

.portfolio-item:hover .portfolio-img {
    transform: scale(1.08);
}

.portfolio-item:hover .portfolio-info {
    transform: translateY(0);
}

.portfolio-item:hover .portfolio-info p {
    opacity: 1;
}

/* --- Testimonials Section --- */
.testimonial-card {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: var(--border-radius-lg);
}

.testimonial-card .stars {
    color: var(--primary);
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.testimonial-card p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-light);
    margin-bottom: 20px;
    font-style: italic;
}

.client-info {
    display: flex;
    flex-direction: column;
}

.client-info strong {
    font-size: 1.05rem;
    color: var(--text-white);
}

.client-info span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* --- Contact & Devis Section --- */
.contact-lead-desc {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 35px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 40px;
}

.detail-card {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.detail-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(217, 119, 6, 0.1);
    color: var(--primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.detail-card h3 {
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.detail-card p {
    font-size: 1.05rem;
    font-weight: 500;
    margin-bottom: 2px;
}

.detail-card p a:hover {
    color: var(--primary);
}

.detail-sub {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.guarantees-banner {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    border-top: 1px solid rgba(15, 23, 42, 0.08);
    padding-top: 30px;
}

.guarantee-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--secondary);
    background-color: var(--bg-light);
    padding: 8px 16px;
    border-radius: 30px;
}

.guarantee-item i {
    color: var(--primary);
}

/* Contact Form */
.form-wrapper {
    background-color: var(--bg-white);
    padding: 30px 24px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-hover);
    border: 1px solid rgba(15, 23, 42, 0.04);
}

.form-wrapper h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    text-align: center;
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--border-radius);
    border: 1.5px solid rgba(15, 23, 42, 0.1);
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--secondary);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1);
}

.form-feedback {
    margin-top: 15px;
    padding: 12px;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.9rem;
    text-align: center;
}

.form-feedback.success {
    background-color: #dcfce7;
    color: #15803d;
    border: 1px solid #bbf7d0;
}

.form-feedback.error {
    background-color: #fee2e2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.hidden {
    display: none;
}

/* --- Footer --- */
.main-footer {
    background-color: var(--bg-darker);
    color: var(--text-light);
    font-family: var(--font-body);
}

.footer-top {
    padding-top: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-title {
    color: var(--text-white);
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-title::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary);
}

.footer-about p {
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.badge-decennale {
    background-color: rgba(217, 119, 6, 0.15);
    color: var(--primary);
    padding: 6px 14px;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 700;
    border: 1px solid rgba(217, 119, 6, 0.2);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--text-light);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.footer-contact p {
    font-size: 0.95rem;
    margin-bottom: 10px;
}

.footer-bottom {
    padding-top: 25px;
    padding-bottom: 85px; /* Espace pour le sticky cta sur mobile */
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-bottom-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
    text-align: center;
}

.legal-links {
    display: flex;
    justify-content: center;
    gap: 20px;
}

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

/* --- Éléments Flottants & Fixes --- */
.back-to-top {
    position: fixed;
    bottom: 80px;
    right: 20px;
    width: 44px;
    height: 44px;
    background-color: var(--secondary);
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 99;
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--primary);
    transform: translateY(-3px);
}

/* Sticky CTA Mobile */
.mobile-sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--bg-white);
    box-shadow: 0 -5px 15px rgba(0,0,0,0.08);
    padding: 12px 16px;
    z-index: 100;
}

.mobile-sticky-cta .btn {
    font-size: 1rem;
    padding: 14px;
    background-color: var(--primary);
    color: var(--text-white);
    border: none;
}


/* ==========================================================================
   Media Queries - Adaptabilité Mobile/Desktop (Responsive Grid)
   ========================================================================== */

@media (min-width: 576px) {
    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .section-padding {
        padding-top: 90px;
        padding-bottom: 90px;
    }
    
    .section-title {
        font-size: 2.8rem;
    }
    
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-section {
        padding-top: calc(var(--header-height) + 80px);
        padding-bottom: 100px;
    }
    
    .hero-title {
        font-size: 3.5rem;
    }
    
    .hero-buttons {
        flex-direction: row;
    }
    
    .hero-features {
        grid-template-columns: repeat(3, 1fr);
        margin-top: 50px;
    }
    
    .about-image {
        height: 480px;
    }
    
    .form-wrapper {
        padding: 40px;
    }
    
    .footer-bottom {
        padding-bottom: 25px; /* Plus besoin de place pour le sticky cta */
    }
    
    .footer-bottom-container {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
    
    .mobile-sticky-cta {
        display: none; /* Cache sur desktop/tablette */
    }
}

@media (min-width: 992px) {
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .btn-desktop-only {
        display: inline-flex;
    }
    
    /* Restauration du menu standard sur écran large */
    .mobile-nav-toggle {
        display: none;
    }
    
    .nav-menu {
        position: static;
        width: auto;
        height: auto;
        background-color: transparent;
        padding: 0;
        border-top: none;
    }
    
    .nav-menu ul {
        flex-direction: row;
        gap: 30px;
    }
    
    .nav-menu a {
        font-size: 1rem;
        font-weight: 600;
        color: var(--secondary);
    }
    
    .nav-menu a.active, .nav-menu a:hover {
        color: var(--primary);
        padding-left: 0;
        border-left: none;
        border-bottom: 2px solid var(--primary);
    }
    
    .hero-container {
        display: grid;
        grid-template-columns: 1fr;
        gap: 40px;
    }
}