/* static/css/style.css - Styles différés pour la performance au-dessus de la ligne de flottaison */

/* Variables et structure globale AIB */
:root {
    --primary: #2563eb;
    --primary-dark: #1e3a8a;
    --secondary: #f97316;
    --text-dark: #1e293b;
    --text-light: #f8fafc;
    --bg-light: #f1f5f9;
    --white: #ffffff;
    --alert-bg: #ffedd5;
    --alert-text: #7c2d12;
}

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

body {
    font-family: system-ui, -apple-system, sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-light);
    line-height: 1.6;
}

html {
    scroll-behavior: smooth;
}

.top-banner { background-color: var(--alert-bg); color: var(--alert-text); text-align: center; padding: 12px 1rem; font-size: 0.95rem; font-weight: 600; }
.seo-h1-phone { font-size: 1rem; margin: 0; display: inline; font-weight: normal; color: inherit; }
.seo-h2-subtitle { font-size: 1.1rem; text-align: center; padding: 10px; background: #fff; margin: 0; font-weight: 600; color: #475569; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); border: 0; }
.skip-link { position: absolute; left: -9999px; top: 0; background: #0f172a; color: #fff; padding: 0.75rem 1rem; z-index: 10000; text-decoration: none; border-radius: 0 0 8px 0; }
.skip-link:focus { left: 0; }

.hero { background: linear-gradient(135deg, #0f1f53 0%, #1f3f97 100%); color: var(--text-light); padding: 4.25rem 1rem 3.5rem; text-align: center; display: flex; flex-direction: column; align-items: center; }
.hero h1 { font-size: clamp(2.8rem, 6vw, 4.6rem); font-weight: 900; line-height: 1.08; margin-bottom: 1.1rem; text-transform: uppercase; letter-spacing: -0.02em; text-align: center; }
.hero-subtitle { font-size: clamp(1.15rem, 2.8vw, 1.35rem); max-width: 760px; margin-bottom: 2rem; opacity: 0.95; }
.hero-btn-group { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: center; }
.cta-btn { background-color: var(--secondary); color: var(--white); padding: 1.02rem 2.4rem; border-radius: 9999px; text-decoration: none; font-weight: 800; font-size: 1.25rem; transition: transform 0.2s ease, box-shadow 0.2s ease; display: inline-flex; align-items: center; gap: 10px; box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2); border: none; cursor: pointer; }
.cta-btn:hover { transform: translateY(-3px); box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3); }
.cta-btn-outline { background-color: transparent; border: 2px solid var(--white); }
.cta-btn-outline:hover { background-color: rgba(255, 255, 255, 0.1); }
.hero-mini { background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%); text-align: center; padding: 1.5rem 1rem; }
.logo-aib { width: 108px; height: 108px; border-radius: 50%; margin-bottom: 1.7rem; box-shadow: 0 6px 12px rgba(0,0,0,0.2); background: #fff; }
.trust-badge { margin-top: 2.6rem; display: inline-flex; align-items: center; gap: 8px; background: rgba(255, 255, 255, 0.1); border: 1px solid rgba(255, 255, 255, 0.2); padding: 0.5rem 1.25rem; border-radius: 9999px; font-size: 0.95rem; font-weight: 600; backdrop-filter: blur(8px); }

#diagnosticModal::backdrop { background: rgba(15, 23, 42, 0.7); backdrop-filter: blur(4px); }

/* Header landing (home) */
.hero-landing { padding: 2.8rem 1rem 2.1rem; }
.hero-landing h1 { font-size: clamp(2.1rem, 4.8vw, 3.25rem); margin-bottom: 0.65rem; }
.hero-landing .hero-subtitle { font-size: clamp(1rem, 2.2vw, 1.2rem); max-width: 700px; margin-bottom: 1.25rem; }
.hero-landing .logo-aib { width: 70px; height: 70px; margin-bottom: 1rem; }
.hero-landing .cta-btn { padding: 0.78rem 2.05rem; font-size: 1.03rem; }
.hero-landing .trust-badge { margin-top: 1.25rem; font-size: 0.88rem; padding: 0.4rem 1rem; }

/* Header blog (/articles) */
.hero-blog { padding: 4.2rem 1rem 3.2rem; }
.hero-blog h1 { font-size: clamp(3rem, 6.2vw, 5rem); margin-bottom: 1rem; }
.hero-blog .hero-subtitle { font-size: clamp(1.15rem, 2.8vw, 1.45rem); max-width: 820px; margin-bottom: 1.8rem; }
.hero-blog .logo-aib { width: 112px; height: 112px; margin-bottom: 1.6rem; }
.hero-blog .cta-btn { padding: 1rem 2.6rem; font-size: 1.18rem; }
.hero-blog .trust-badge { margin-top: 2rem; font-size: 1rem; }

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1rem;
}

.section-title {
    text-align: center;
    font-size: clamp(2rem, 4vw, 2.5rem);
    color: var(--primary-dark);
    margin-bottom: 3.5rem;
    font-weight: 900;
}

/* Nouveau Formulaire Rapide */
.quick-contact-section {
    background: var(--white);
    padding: 4rem 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
    margin: 2rem auto 4rem auto;
    max-width: 800px;
    border-top: 5px solid var(--secondary);
}

.quick-contact-section .section-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: #0f172a;
    margin-bottom: 2rem;
}

.diagnostic-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group { display: flex; flex-direction: column; }
.full-width { grid-column: 1 / -1; }

.form-group label {
    font-weight: 600;
    color: #475569;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-group input, .form-group textarea {
    padding: 1rem;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-note { font-size: 0.85rem; color: #64748b; margin-top: 1rem; text-align: center; }
.text-center { text-align: center; }

/* Services */
.services { padding: 4rem 0; }
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.service-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.service-card:hover { transform: translateY(-5px); box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1); }
.service-card img { width: 100%; height: 220px; object-fit: cover; background-color: #e2e8f0; }

img:not(.lazy) { animation: fadeIn 0.5s ease-in-out; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.service-content { padding: 2rem; flex: 1; }
.service-content h3 { font-size: 1.4rem; color: var(--text-dark); margin-bottom: 1rem; font-weight: 800; }
.service-content p { color: #475569; font-size: 1.1rem; line-height: 1.6; }

/* Arguments (Pourquoi nous) */
.arguments-section {
    background-color: var(--white);
    padding: 5rem 2rem;
    border-radius: 24px;
    margin: 4rem 0;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.02);
}

.args-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 3rem; text-align: center; }
.arg-icon { font-size: 3rem; margin-bottom: 1.5rem; }
.arg-item h4 { font-size: 1.25rem; margin-bottom: 1rem; color: var(--primary-dark); }
.arg-item p { color: #64748b; font-size: 1.05rem; }

/* Testimonials */
.testimonials { padding: 4rem 0; margin-bottom: 4rem; }
.testimonial-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.testimonial-card {
    background: #f8fafc;
    border-left: 4px solid var(--secondary);
    padding: 2rem;
    border-radius: 8px;
    font-style: italic;
    color: #334155;
}
.testimonial-card footer { margin-top: 1.5rem; font-weight: 700; color: var(--text-dark); font-style: normal; }

/* Contact Section */
.contact-section {
    background: linear-gradient(to right, #eff6ff, #e0e7ff);
    padding: 5rem 2rem;
    border-radius: 24px;
    text-align: center;
    margin-bottom: 4rem;
}
.contact-section p { font-size: 1.2rem; color: #475569; max-width: 650px; margin: 0 auto 2.5rem auto; }
.contact-email { margin-top: 2rem !important; font-weight: 600; }
.contact-email a { color: var(--primary); text-decoration: none; }

.btn-primary {
    display: inline-flex;
    background-color: var(--secondary);
    color: var(--white);
    text-decoration: none;
    border: none;
    cursor: pointer;
    padding: 1.25rem 3rem;
    border-radius: 9999px;
    font-size: 1.35rem;
    font-weight: 800;
    transition: all 0.2s ease;
    box-shadow: 0 10px 15px -3px rgba(249, 115, 22, 0.3);
}
.btn-primary:hover { background-color: #ea580c; transform: scale(1.05); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid #93c5fd; outline-offset: 2px; }

/* Footer */
.site-footer { background-color: var(--text-dark); color: #94a3b8; padding: 4rem 1rem; text-align: center; }
.footer-mentions { margin-top: 1.5rem; font-size: 0.95rem; line-height: 1.8; }

.blog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2.5rem; margin-top: 2rem; }
.article-card { background: #fff; border-radius: 16px; box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05); transition: transform 0.3s, box-shadow 0.3s; display: flex; flex-direction: column; overflow: hidden; text-decoration: none; color: inherit; }
.article-card:hover { transform: translateY(-8px); box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1); }
.article-card-image { width: 100%; height: 200px; object-fit: cover; border-bottom: 4px solid var(--secondary); }
.article-card-content { padding: 2rem; display: flex; flex-direction: column; flex: 1; }
.article-card h2 { font-size: 1.35rem; color: var(--primary-dark); margin-bottom: 1rem; line-height: 1.4; font-weight: 800; }
.article-read-more { margin-top: auto; color: var(--secondary); font-weight: 800; display: inline-flex; align-items: center; gap: 5px; text-transform: uppercase; font-size: 0.9rem; letter-spacing: 0.5px; }

.article-reading-env { max-width: 800px; margin: 4rem auto; background: var(--white); padding: 4rem; border-radius: 24px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); }
.article-header { text-align: center; margin-bottom: 3rem; border-bottom: 2px solid var(--bg-light); padding-bottom: 2rem; }
.article-header h1 { font-size: clamp(2rem, 5vw, 3rem); color: var(--primary-dark); line-height: 1.2; margin-bottom: 1rem; letter-spacing: -0.02em; text-transform: none; }
.article-meta { color: #64748b; font-size: 0.95rem; font-weight: 500; }
.article-content { font-size: 1.2rem; line-height: 1.8; color: #334155; }
.article-content h2 { font-size: 1.8rem; color: var(--text-dark); margin-top: 3rem; margin-bottom: 1.5rem; }
.article-content p { margin-bottom: 1.5rem; }
.article-content ul, .article-content ol { margin-bottom: 1.5rem; padding-left: 2rem; }
.article-content li { margin-bottom: 0.5rem; }
.back-link { display: inline-flex; align-items: center; color: var(--primary); font-weight: 600; text-decoration: none; margin-bottom: 2rem; transition: transform 0.2s; }
.back-link:hover { transform: translateX(-5px); }

.legal-content { max-width: 800px; margin: 4rem auto; background: var(--white); padding: 3rem; border-radius: 16px; box-shadow: 0 10px 25px rgba(0,0,0,0.05); text-align: left; }
.legal-content h2 { color: var(--primary-dark); margin-bottom: 1rem; margin-top: 2rem; font-size: 1.5rem; }
.legal-content p { margin-bottom: 1rem; color: #475569; font-size: 1.05rem; }

.error-container { text-align: center; padding: 8rem 1rem; min-height: 70vh; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.error-code { font-size: 8rem; font-weight: 900; color: var(--primary); line-height: 1; margin-bottom: 1rem; text-shadow: 0 10px 20px rgba(37, 99, 235, 0.2); }
.error-title { font-size: 2.5rem; color: var(--primary-dark); margin-bottom: 1.5rem; }
.error-text { font-size: 1.2rem; color: #475569; max-width: 600px; margin: 0 auto 3rem auto; line-height: 1.8; }
.btn-group { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn-outline { display: inline-flex; background-color: transparent; color: var(--primary-dark); border: 2px solid var(--primary-dark); text-decoration: none; padding: 1rem 2rem; border-radius: 9999px; font-size: 1.1rem; font-weight: 700; transition: all 0.2s ease; }
.btn-outline:hover { background-color: var(--primary-dark); color: #fff; }

.mobile-sticky-call { display: none; position: fixed; bottom: 0; left: 0; width: 100%; background-color: var(--secondary); color: white; text-align: center; padding: 1.2rem; font-size: 1.4rem; font-weight: 900; text-decoration: none; z-index: 9999; box-shadow: 0 -4px 15px rgba(249, 115, 22, 0.4); text-transform: uppercase; letter-spacing: 0.5px;}

.back-to-top {
    position: fixed;
    right: 1rem;
    bottom: 1.2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 48px;
    height: 48px;
    padding: 0 0.9rem;
    border-radius: 9999px;
    background-color: var(--primary-dark);
    color: var(--white);
    text-decoration: none;
    font-weight: 800;
    box-shadow: 0 10px 20px rgba(15, 23, 42, 0.25);
    z-index: 9998;
}

.back-to-top:hover {
    background-color: #172554;
}

@media (max-width: 768px) {
    body { padding-bottom: 70px; }
    .section-title { font-size: 1.8rem; }
    .top-banner { font-size: 0.85rem; padding: 8px 1rem; }
    .seo-h2-subtitle { font-size: 0.95rem; }
    .hero { padding: 2.5rem 1rem; }
    .hero h1 { font-size: 2.2rem; margin-bottom: 0.6rem; }
    .hero-subtitle { font-size: 1rem; max-width: 95%; }
    .logo-aib { width: 80px; height: 80px; margin-bottom: 1rem; }
    .hero-landing { padding: 2rem 1rem 1.6rem; }
    .hero-landing h1 { font-size: 2rem; }
    .hero-landing .cta-btn { padding: 0.75rem 1.3rem; font-size: 0.98rem; }
    .hero-blog { padding: 2.6rem 1rem 2.2rem; }
    .hero-blog h1 { font-size: 2.45rem; }
    .hero-blog .cta-btn { padding: 0.9rem 1.6rem; font-size: 1.02rem; }
    .mobile-sticky-call { display: block; }
    .back-to-top { bottom: 5.5rem; }
    .services, .testimonials { padding: 2rem 0; }
    .contact-section, .arguments-section { padding: 3rem 1.5rem; }
    .btn-primary { padding: 1rem 2rem; font-size: 1.15rem; }
    .diagnostic-form { grid-template-columns: 1fr; }
    .article-reading-env { padding: 2rem 1.5rem; margin: 2rem auto; border-radius: 16px; }
    .article-content { font-size: 1.1rem; }
}