/* ============================================================
   Artisan du Bâtiment (CBA Groupe) — assurances BTP — bleu profond + jaune
   ============================================================ */

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

:root {
    --blue-50:  #eff6ff;
    --blue-100: #dbeafe;
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --blue-800: #1e40af;
    --blue-900: #1e3a8a;
    --yellow-400: #facc15;
    --yellow-500: #eab308;
    --gray-50:  #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-900: #111827;
    --green-100:#d1fae5;
    --green-600:#16a34a;
    --error:    #dc2626;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow:    0 10px 25px rgba(0,0,0,0.08);
    --shadow-lg: 0 20px 50px rgba(0,0,0,0.15);
    --transition: 0.2s ease;
}

html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--gray-700);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    background: #fff;
}
img { max-width: 100%; height: auto; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.skip-link {
    position: absolute; left: -9999px; top: 0;
    background: var(--blue-900); color: #fff;
    padding: 10px 16px; z-index: 9999;
}
.skip-link:focus { left: 8px; top: 8px; }

/* ============ Header ============ */
.header {
    position: fixed; top: 0; left: 0; right: 0;
    background: #fff; z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition);
}
.header.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,0.08); }

.header-content {
    display: flex; align-items: center; justify-content: space-between;
    height: 64px; gap: 20px;
}
.logo {
    font-size: 1.4rem; font-weight: 800;
    color: var(--blue-700); text-decoration: none;
    white-space: nowrap;
}

.nav-desktop {
    display: flex; align-items: center; gap: 32px;
}
.nav-desktop a {
    color: var(--gray-700); text-decoration: none;
    font-weight: 500; transition: color var(--transition);
}
.nav-desktop a:hover { color: var(--blue-700); }

.cta-header {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--blue-600); color: #fff;
    padding: 10px 20px; border-radius: 10px;
    font-weight: 500; text-decoration: none;
    transition: background var(--transition);
    white-space: nowrap;
}
.cta-header:hover { background: var(--blue-700); }
.cta-header.full { width: 100%; justify-content: center; margin-top: 8px; }

.nav-toggle {
    display: none; background: none; border: 0;
    cursor: pointer; width: 32px; height: 32px; padding: 4px;
}
.nav-toggle span {
    display: block; height: 3px; background: var(--blue-700);
    margin: 4px 0; border-radius: 2px; transition: var(--transition);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
    display: none; flex-direction: column; gap: 4px;
    padding: 16px 0; border-top: 1px solid var(--gray-200);
}
.nav-mobile a {
    color: var(--gray-700); text-decoration: none;
    font-weight: 500; padding: 10px 0;
    transition: color var(--transition);
}
.nav-mobile a:hover { color: var(--blue-700); }
.nav-mobile.active { display: flex; }

/* ============ Hero ============ */
.hero {
    position: relative;
    background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-800) 50%, var(--blue-700) 100%);
    padding: 130px 0 100px;
    overflow: hidden;
    color: #fff;
}
.hero::before {
    content: '';
    position: absolute; inset: 0;
    background: rgba(0,0,0,0.25);
}
.hero-grid {
    position: relative; z-index: 1;
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 60px; align-items: center;
}
.hero-content h1 {
    font-size: clamp(2.2rem, 5vw, 3.75rem);
    font-weight: 700; line-height: 1.1; margin-bottom: 24px;
}
.hero-content h1 span { color: var(--yellow-400); }
.hero-content > p {
    font-size: clamp(1.05rem, 1.6vw, 1.35rem);
    color: var(--blue-100); margin-bottom: 32px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 40px; }

.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 28px; border-radius: 10px;
    font-weight: 600; text-decoration: none; cursor: pointer;
    border: 0; font-family: inherit; font-size: 1rem;
    transition: all var(--transition);
}
.btn-primary {
    background: var(--yellow-500); color: var(--blue-900);
    box-shadow: 0 6px 18px rgba(0,0,0,0.2);
}
.btn-primary:hover { background: var(--yellow-400); transform: translateY(-2px); }
.btn-outline {
    background: transparent; color: #fff;
    border: 2px solid #fff;
}
.btn-outline:hover { background: #fff; color: var(--blue-900); }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; }
.btn:disabled { opacity: .6; cursor: not-allowed; transform: none; }

.hero-features { display: grid; gap: 16px; }
.hero-feature {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    backdrop-filter: blur(8px);
    padding: 20px;
    border-radius: 12px;
}
.hero-feature-head {
    display: flex; align-items: center; gap: 14px;
    margin-bottom: 6px;
}
.hero-feature-icon {
    width: 32px; height: 32px;
    color: var(--yellow-400);
    flex-shrink: 0;
}
.hero-feature h3 { color: #fff; font-size: 1.2rem; }
.hero-feature p { color: var(--blue-100); font-size: 0.95rem; }

/* ============ Sections génériques ============ */
.section { padding: 80px 0; }
.section-gray { background: var(--gray-50); }
.section-header { text-align: center; max-width: 700px; margin: 0 auto 50px; }
.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700; color: var(--gray-900);
    margin-bottom: 16px;
}
.section-subtitle { font-size: 1.15rem; color: var(--gray-600); }

/* ============ Contact ============ */
.contact { padding: 80px 0; background: var(--gray-50); }
.contact-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
}
.contact-card {
    background: #fff; padding: 32px;
    border-radius: 18px;
    border: 1px solid var(--gray-100);
    box-shadow: var(--shadow-sm);
}
.contact-card h3 {
    font-size: 1.5rem; color: var(--gray-900); margin-bottom: 24px;
}

.form-row {
    display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
    margin-bottom: 22px;
}
.form-group { margin-bottom: 22px; }
.form-group label {
    display: block; margin-bottom: 8px;
    font-size: 0.9rem; font-weight: 500; color: var(--gray-700);
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%; padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: 10px;
    font-family: inherit; font-size: 1rem;
    background: #fff;
    transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--blue-600);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
}
.form-group .invalid { border-color: var(--error); }
.form-group textarea { min-height: 130px; resize: vertical; }

.form-consent {
    background: var(--gray-50);
    border: 1px solid var(--gray-100);
    padding: 16px;
    border-radius: 10px;
    font-size: 0.9rem; color: var(--gray-600);
    margin-bottom: 16px;
}
.form-consent a { color: var(--blue-600); }

.btn-submit {
    width: 100%;
    background: var(--blue-600); color: #fff;
    padding: 16px 24px; border-radius: 10px;
    font-size: 1.05rem; font-weight: 500; cursor: pointer;
    border: 0; transition: background var(--transition);
}
.btn-submit:hover { background: var(--blue-700); }
.btn-submit:disabled { opacity: .6; cursor: not-allowed; }

.flash {
    padding: 14px 18px; border-radius: 10px;
    margin-bottom: 20px; font-weight: 500;
}
.flash.success { background: #ecfdf5; color: #065f46; border: 1px solid #6ee7b7; }
.flash.error   { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }

.contact-info-list { margin-top: 4px; }
.contact-info-item {
    display: flex; align-items: flex-start; gap: 16px;
    margin-bottom: 24px;
}
.contact-info-icon {
    flex-shrink: 0; width: 48px; height: 48px;
    border-radius: 50%; background: var(--blue-100);
    color: var(--blue-600);
    display: flex; align-items: center; justify-content: center;
}
.contact-info-text h4 { color: var(--gray-900); margin-bottom: 4px; }
.contact-info-text p { color: var(--gray-600); }
.contact-info-text small { color: var(--gray-500); font-size: 0.85rem; }

.contact-why {
    background: var(--blue-50);
    border: 1px solid var(--blue-100);
    padding: 32px; border-radius: 18px;
}
.contact-why h3 { color: var(--blue-900); margin-bottom: 16px; }
.contact-why ul { list-style: none; }
.contact-why li {
    color: var(--blue-800);
    margin-bottom: 12px;
    display: flex; align-items: center; gap: 12px;
}
.contact-why li::before {
    content: ''; display: inline-block;
    width: 8px; height: 8px;
    background: var(--blue-600);
    border-radius: 50%;
    flex-shrink: 0;
}

/* ============ Footer ============ */
.footer {
    background: var(--gray-900); color: #fff;
    padding: 64px 0 32px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px; margin-bottom: 40px;
}
.footer h3 {
    font-size: 1.4rem; color: #fff;
    margin-bottom: 16px;
}
.footer h4 {
    font-size: 1rem; color: #fff;
    margin-bottom: 14px;
}
.footer p { color: var(--gray-300); margin-bottom: 18px; }
.footer ul { list-style: none; }
.footer ul li { color: var(--gray-300); margin-bottom: 8px; font-size: 0.95rem; }
.footer ul li a {
    color: var(--gray-300); text-decoration: none;
    transition: color var(--transition);
}
.footer ul li a:hover { color: var(--blue-100); }
.footer-contact a { color: var(--blue-100) !important; }
.footer-contact a:hover { color: #fff !important; }

.footer-bottom {
    border-top: 1px solid var(--gray-700);
    padding-top: 24px;
    display: flex; flex-wrap: wrap; justify-content: space-between;
    gap: 12px;
}
.footer-bottom p { color: var(--gray-500); font-size: 0.9rem; margin: 0; }
.footer-bottom a { color: var(--blue-100); }

/* ============ Pages internes ============ */
.page { padding: 120px 0 80px; min-height: 70vh; background: #fff; }
.page .container { max-width: 800px; }
.page h1 { font-size: clamp(1.8rem, 4vw, 2.5rem); color: var(--gray-900); margin-bottom: 25px; }
.page h2 { color: var(--blue-700); margin: 28px 0 12px; font-size: 1.2rem; }
.page p { margin-bottom: 12px; color: var(--gray-700); }
.page .back-link { color: var(--blue-600); text-decoration: none; font-weight: 500; display: inline-block; margin-bottom: 20px; }
.page .back-link:hover { color: var(--blue-700); }
.contact-info { margin-top: 30px; padding: 20px; background: var(--gray-50); border-radius: 10px; }

/* ============ Logo / hero additions ============ */
.logo { display: inline-flex; flex-direction: column; line-height: 1.1; }
.logo small {
    font-size: 0.72rem; font-weight: 600; letter-spacing: 0.04em;
    color: var(--gray-500); text-transform: uppercase; margin-top: 3px;
}
.hero-kicker {
    display: inline-block; font-size: 0.85rem !important; font-weight: 600;
    letter-spacing: 0.06em; text-transform: uppercase;
    color: var(--yellow-400) !important; margin-bottom: 14px !important;
}
.hero-content h1 { font-size: clamp(2rem, 4.2vw, 3.1rem); }
.hero-actions { margin-bottom: 0; }
.hero-note { margin-top: 16px; font-size: .95rem; color: var(--blue-100); }

/* ============ Boutons supplémentaires ============ */
.btn-blue { background: var(--blue-600); color: #fff; padding: 12px 22px; }
.btn-blue:hover { background: var(--blue-700); }
.btn-ghost {
    background: #fff; color: var(--blue-700);
    border: 2px solid var(--blue-600); padding: 10px 20px;
}
.btn-ghost:hover { background: var(--blue-50); }

.container-narrow { max-width: 860px; }

/* ============ Obligations ============ */
.oblig-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 28px;
}
.oblig-card {
    background: #fff; border-radius: 14px; padding: 30px;
    border: 1px solid var(--gray-200); box-shadow: var(--shadow-sm);
}
.oblig-card h3 { font-size: 1.3rem; margin-bottom: 16px; }
.oblig-mandatory { border-top: 5px solid var(--blue-800); }
.oblig-mandatory h3 { color: var(--blue-900); }
.oblig-recommended { border-top: 5px solid var(--yellow-500); }
.oblig-recommended h3 { color: var(--gray-900); }
.oblig-card ul { list-style: none; }
.oblig-card li {
    padding-left: 20px; position: relative;
    margin-bottom: 14px; color: var(--gray-700); font-size: 0.97rem;
}
.oblig-card li::before {
    content: ''; position: absolute; left: 0; top: 0.6em;
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--blue-600);
}
.oblig-recommended li::before { background: var(--yellow-500); }
.oblig-card li strong { color: var(--gray-900); }
.oblig-note {
    margin-top: 24px; font-size: 0.9rem; color: var(--gray-500);
    text-align: center; max-width: 820px; margin-left: auto; margin-right: auto;
}

/* ============ Produits ============ */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}
.products-main { grid-template-columns: repeat(2, 1fr); }
.products-subtitle {
    font-size: 1.25rem; color: var(--gray-900);
    margin: 50px 0 20px; padding-left: 12px;
    border-left: 4px solid var(--yellow-500);
}
.product-card {
    display: flex; flex-direction: column; align-items: flex-start;
    background: var(--gray-50); padding: 28px;
    border-radius: 14px; border: 1px solid var(--gray-200);
    transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.product-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.products-main .product-card { background: #fff; border-color: var(--blue-100); box-shadow: var(--shadow-sm); }
.product-tag {
    display: inline-block; font-size: 0.75rem; font-weight: 700;
    letter-spacing: 0.05em; text-transform: uppercase;
    color: var(--blue-800); background: var(--blue-100);
    padding: 4px 10px; border-radius: 999px; margin-bottom: 14px;
}
.product-card h3 { font-size: 1.2rem; color: var(--gray-900); margin-bottom: 12px; line-height: 1.3; }
.product-card p { color: var(--gray-600); margin-bottom: 12px; font-size: 0.97rem; }
.product-card .product-for { font-size: 0.92rem; color: var(--gray-700); }
.product-card .product-for strong { color: var(--blue-800); }
.product-card .btn { margin-top: auto; }
.product-card-light { background: #fff; }

/* ============ Pourquoi un courtier ============ */
.why-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.why-item {
    background: #fff; padding: 26px; border-radius: 14px;
    border: 1px solid var(--gray-200);
}
.why-item h3 { color: var(--blue-900); font-size: 1.1rem; margin-bottom: 10px; }
.why-item p { color: var(--gray-600); font-size: 0.97rem; }
.why-item a { color: var(--blue-600); font-weight: 600; }

/* ============ FAQ ============ */
.faq details {
    border: 1px solid var(--gray-200); border-radius: 12px;
    margin-bottom: 12px; background: #fff;
}
.faq summary {
    cursor: pointer; padding: 18px 22px; font-weight: 600;
    color: var(--gray-900); list-style: none; position: relative;
    padding-right: 48px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
    content: '+'; position: absolute; right: 22px; top: 50%;
    transform: translateY(-50%); font-size: 1.4rem; color: var(--blue-600);
}
.faq details[open] summary::after { content: '\2212'; }
.faq details p { padding: 0 22px 20px; color: var(--gray-600); }

/* ============ Contact (complément) ============ */
.contact-side { display: flex; flex-direction: column; gap: 24px; }
.contact-phone {
    background: linear-gradient(135deg, var(--blue-900), var(--blue-700));
    color: #fff; padding: 30px; border-radius: 18px;
}
.contact-phone span {
    display: block; text-transform: uppercase; font-size: 0.85rem;
    letter-spacing: 0.06em; color: var(--blue-100); font-weight: 600;
}
.contact-phone a {
    display: block; font-size: clamp(1.9rem, 4vw, 2.5rem); font-weight: 800;
    color: var(--yellow-400); text-decoration: none; margin: 6px 0;
}
.contact-phone a:hover { color: #fff; }
.contact-phone small { color: var(--blue-100); }
.contact-why p { color: var(--blue-800); margin-bottom: 16px; }
.contact-info-text a { color: var(--blue-600); }
.form-group .opt { color: var(--gray-500); font-weight: 400; }

/* ============ Footer (complément) ============ */
.footer-legal {
    border-top: 1px solid var(--gray-700);
    padding: 20px 0; margin-top: -10px;
}
.footer-legal p { font-size: 0.85rem; color: var(--gray-500); margin: 0; }
.footer-legal a { color: var(--blue-100); }
.footer-bottom { border-top: 0; padding-top: 4px; }

.page-updated { color: var(--gray-500); font-size: 0.9rem; margin-top: -12px; margin-bottom: 20px !important; }
.footer-cba { color: var(--gray-500) !important; text-decoration: none; }
.footer-cba:hover { color: var(--blue-100) !important; text-decoration: underline; }
.page-404 { text-align: center; }
.page-404 .btn { margin: 8px; }

/* ============ Responsive ============ */
@media (max-width: 900px) {
    .nav-desktop, .cta-header { display: none; }
    .cta-header.full { display: inline-flex; }
    .nav-toggle { display: block; }

    .hero { padding: 110px 0 70px; }
    .hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .contact-grid, .oblig-grid, .products-main { grid-template-columns: 1fr; gap: 28px; }
    .why-grid { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 600px) {
    .form-row { grid-template-columns: 1fr; }
    .why-grid { grid-template-columns: 1fr; }
    .section, .contact { padding: 60px 0; }
    .container { padding: 0 16px; }
    .oblig-card, .product-card, .contact-card { padding: 22px; }
}