*, *::before, *::after { box-sizing: border-box; }
:root { --bg-base: #ffffff; --bg-gradient-end: #f1f5f9; --bg-surface: #ffffff; --primary: #0f172a; --accent: #2563eb; --text-main: #1e293b; --text-muted: #64748b; --glass-border: rgba(15, 23, 42, 0.08); --glass-bg: rgba(255, 255, 255, 0.85); }
html, body { margin: 0; padding: 0; font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif; color: var(--text-main); line-height: 1.7; overflow-x: hidden; scroll-behavior: smooth; background-color: var(--bg-base); display: flex; flex-direction: column; min-height: 100vh; }
#site-background { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background: radial-gradient(circle at top right, var(--bg-base) 0%, var(--bg-gradient-end) 100%); z-index: -100; pointer-events: none; }
.architect-grid { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-size: 60px 60px; background-image: linear-gradient(rgba(15, 23, 42, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(15, 23, 42, 0.03) 1px, transparent 1px); z-index: 1; }
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.reveal.active { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; } .delay-2 { transition-delay: 0.2s; } .delay-3 { transition-delay: 0.3s; } .delay-4 { transition-delay: 0.4s; }
.text-gradient { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; font-weight: 800; }
.text-link { color: var(--accent); font-weight: 700; text-decoration: none; transition: color 0.3s ease, text-decoration 0.3s ease; }
.text-link:hover { color: var(--primary); text-decoration: underline; }

/* Navigation */
nav { padding: 20px 5%; display: flex; justify-content: space-between; align-items: center; background: var(--glass-bg); backdrop-filter: blur(20px); position: sticky; top: 0; z-index: 100; border-bottom: 1px solid var(--glass-border); box-shadow: 0 4px 20px rgba(15,23,42,0.02); }
.nav-logo { font-weight: 800; color: var(--primary); text-decoration: none; font-size: 1.2rem; letter-spacing: 2px; text-transform: uppercase; position: relative; z-index: 101; }
.nav-back { color: var(--text-muted); font-weight: 600; text-decoration: none; transition: 0.3s; }
.nav-back:hover { color: var(--accent); }
.nav-menu { display: flex; gap: 30px; align-items: center; }
.nav-menu a { color: var(--text-main); font-weight: 600; text-decoration: none; transition: all 0.3s ease; font-size: 0.95rem; }
.nav-menu a:hover { color: var(--accent); }
.nav-menu a.btn-nav { background: var(--primary); color: #ffffff; padding: 10px 20px; border-radius: 8px; font-weight: 700; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; box-shadow: 0 4px 10px rgba(15, 23, 42, 0.1); }
.nav-menu a.btn-nav:hover { background: var(--accent); color: #ffffff; transform: translateY(-2px); box-shadow: 0 8px 15px rgba(37, 99, 235, 0.2); }
.mobile-toggle { display: none; background: none; border: none; color: var(--primary); cursor: pointer; z-index: 101; padding: 5px; transition: transform 0.3s; }
.mobile-toggle:hover { color: var(--accent); }

/* Headers & Sections */
.page-header { padding: 100px 10% 50px; text-align: center; position: relative; z-index: 10; }
.page-header h1 { font-size: clamp(2.5rem, 5vw, 4rem); line-height: 1.2; margin-bottom: 20px; font-weight: 800; text-transform: uppercase; letter-spacing: 1px; color: var(--primary); }
.page-header p { font-size: 1.2rem; color: var(--text-muted); max-width: 800px; margin: 0 auto; font-weight: 400; }
.header-page { position: relative; padding: 100px 20px 40px; text-align: center; overflow: hidden; }
.header-page .category-title { font-size: clamp(2rem, 4vw, 3.5rem); letter-spacing: 1px; margin-top: 0; margin-bottom: 15px; font-weight: 800; text-transform: uppercase; color: var(--primary); }
.content-section, .article-section, .process-section { padding: 50px 10% 100px; position: relative; flex: 1; max-width: 1200px; margin: 0 auto; }
.article-section { padding: 0 20px 80px; }

/* Glass Panels & Typography */
.glass-panel, .glass-container { background: var(--glass-bg); padding: 50px; border-radius: 16px; border: 1px solid var(--glass-border); backdrop-filter: blur(20px); box-shadow: 0 25px 50px rgba(15, 23, 42, 0.05); margin-bottom: 40px; position: relative; z-index: 10; }
.glass-container { max-width: 900px; margin: 0 auto; }
.glass-panel h2, .glass-container h1 { font-weight: 800; color: var(--text-main); margin-top: 0;}
.glass-panel h2 { font-size: 1.8rem; color: var(--primary); margin-bottom: 20px;}
.glass-container h1 { font-size: 2rem; line-height: 1.3; margin-bottom: 30px; }
.glass-container h2, .glass-container h3 { color: var(--primary); margin-top: 40px; margin-bottom: 15px; font-size: 1.4rem; font-weight: 800; }
.glass-panel p, .glass-panel li, .glass-container p { color: var(--text-muted); text-align: left; margin-bottom: 20px; font-size: 1.05rem; line-height: 1.8; font-weight: 400; }
.glass-panel ul, .glass-panel ol, .glass-container ul { margin-bottom: 25px; padding-left: 20px; color: var(--text-muted); font-size: 1.05rem; line-height: 1.8;}
.glass-container ul { list-style-type: none; }
.glass-container ul li { margin-bottom: 15px; position: relative; padding-left: 25px; }
.glass-container ul li::before { content: '🔹'; position: absolute; left: 0; color: var(--accent); font-size: 0.9rem; }
.glass-panel strong, .glass-container strong { color: var(--text-main); font-weight: 700; }
.article-date { color: var(--accent); font-size: 0.9rem; font-weight: 800; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 15px; }
.article-content a { color: var(--accent); font-weight: 700; text-decoration: none; border-bottom: 2px solid rgba(37, 99, 235, 0.3); transition: all 0.3s ease; }
.article-content a:hover { color: var(--primary); border-bottom-color: var(--primary); }

/* Grids & Cards */
.content-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 40px; position: relative; z-index: 10; }
.service-box { background: var(--bg-surface); border: 1px solid var(--glass-border); padding: 40px 30px; border-radius: 12px; transition: transform 0.3s ease, box-shadow 0.3s ease; box-shadow: 0 10px 30px rgba(15, 23, 42, 0.03); }
.service-box:hover { transform: translateY(-8px); box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08); border-color: rgba(37, 99, 235, 0.2); }
.service-box h3 { color: var(--primary); font-size: 1.3rem; margin-top: 0; font-weight: 800; transition: color 0.3s; }
.service-box:hover h3 { color: var(--accent); }
.service-box p { color: var(--text-muted); font-weight: 400; margin-bottom: 0; }
.box-center { grid-column: 1 / -1; margin: 0 auto; width: 100%; max-width: calc(50% - 20px); }

/* FAQ Section */
.faq-section { margin-top: 80px; position: relative; z-index: 10; }
.faq-section h2 { text-align: center; font-size: 2rem; color: var(--primary); margin-bottom: 40px; font-weight: 800; }
.faq-item { background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: 12px; padding: 25px; margin-bottom: 20px; box-shadow: 0 5px 15px rgba(15,23,42,0.03); transition: transform 0.3s; }
.faq-item:hover { transform: translateY(-3px); }
.faq-item h3 { color: var(--primary); margin-top: 0; margin-bottom: 15px; font-size: 1.15rem; }
.faq-item p { color: var(--text-muted); margin: 0; font-size: 0.95rem; }

/* Buttons */
.btn-cta { position: relative; padding: 16px 40px; background: var(--primary); color: #ffffff; text-decoration: none; border-radius: 8px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; font-size: 0.85rem; display: inline-block; margin: 20px 0; border: 1px solid transparent; box-shadow: 0 10px 20px rgba(15, 23, 42, 0.15); transition: all 0.3s ease; text-align: center; z-index: 10; cursor: pointer; }
.btn-cta:hover { transform: translateY(-2px); box-shadow: 0 15px 25px rgba(15, 23, 42, 0.25); background: var(--accent); color: #ffffff;}
.btn-back { display: inline-flex; align-items: center; gap: 8px; color: var(--primary); text-decoration: none; padding: 10px 25px; border-radius: 8px; font-weight: 700; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; border: 1px solid var(--glass-border); background: var(--bg-surface); transition: all 0.3s ease; margin-bottom: 30px; box-shadow: 0 4px 6px rgba(15, 23, 42, 0.05); }
.btn-back:hover { border-color: var(--accent); color: var(--accent); transform: translateX(-5px); box-shadow: 0 8px 15px rgba(15, 23, 42, 0.08); }

/* Footer & Cookies */
footer { text-align: center; padding: 40px 10%; color: var(--text-muted); border-top: 1px solid var(--glass-border); margin-top: auto; position: relative; z-index: 10; }
.footer-logo { font-size: 1.5rem; font-weight: 800; letter-spacing: 3px; color: var(--primary); margin-bottom: 20px; display: block; }
.legal-link { display: inline-block; margin-top: 20px; color: var(--text-muted); font-size: 0.85rem; text-decoration: none; transition: 0.3s; font-weight: 600;}
.legal-link:hover { color: var(--accent); }
.cookie-banner { position: fixed; bottom: 0; left: 0; width: 100%; background: rgba(255, 255, 255, 0.98); backdrop-filter: blur(10px); border-top: 1px solid var(--glass-border); box-shadow: 0 -10px 30px rgba(15, 23, 42, 0.05); padding: 15px 5%; display: flex; justify-content: space-between; align-items: center; gap: 20px; z-index: 9999; transform: translateY(100%); transition: transform 0.4s ease-out; }
.cookie-banner.show { transform: translateY(0); }
.cookie-text { font-size: 0.9rem; color: var(--text-muted); flex: 1; }
.cookie-text strong { color: var(--primary); font-weight: 700; }
.cookie-buttons { display: flex; gap: 10px; flex-shrink: 0;}
.btn-cookie { padding: 8px 20px; border-radius: 6px; font-weight: 700; cursor: pointer; transition: 0.3s; font-size: 0.85rem; border: none; }
.btn-accept-cookie { background: var(--primary); color: white; }
.btn-accept-cookie:hover { background: var(--accent); }
.btn-refuse-cookie { background: transparent; color: var(--text-muted); border: 1px solid var(--glass-border); }
.btn-refuse-cookie:hover { color: var(--primary); border-color: var(--primary); }

/* Image SEO */
.seo-image { float: right; max-width: 30%; border-radius: 12px; margin: 0 0 20px 30px; box-shadow: 0 15px 35px rgba(15,23,42,0.1); border: 1px solid var(--glass-border); }

/* Responsive */
@media (max-width: 768px) {
    .mobile-toggle { display: block; }
    .nav-menu { position: absolute; top: 100%; left: 0; width: 100%; background: var(--glass-bg); backdrop-filter: blur(20px); flex-direction: column; padding: 20px 5%; border-bottom: 1px solid var(--glass-border); box-shadow: 0 10px 20px rgba(15,23,42,0.05); gap: 20px; opacity: 0; visibility: hidden; transform: translateY(-10px); transition: all 0.3s ease; }
    .nav-menu.active { opacity: 1; visibility: visible; transform: translateY(0); }
    .nav-menu a.btn-nav { text-align: center; width: 100%; margin-top: 10px; }
    .page-header h1, .header-page h1, .header-page .category-title { font-size: 2.2rem; }
    .header-page { padding: 100px 20px 40px; }
    .content-grid { grid-template-columns: 1fr; }
    .glass-panel, .glass-container { padding: 30px 20px; }
    .seo-image { float: none; max-width: 100%; margin: 0 0 20px 0; }
    .btn-cta { padding: 12px 25px; font-size: 0.75rem; letter-spacing: 1.5px; }
    .box-center { max-width: 100%; }
    .cookie-banner { flex-direction: column; text-align: center; }
    .cookie-buttons { width: 100%; justify-content: center; }
}