/* ============================================================
   Design System — Aides Énergie
   Style Silicon Valley : épuré, professionnel, confiance
   ============================================================ */

/* 1. Variables + reset
   ============================================================ */
:root {
    --blue: #2563eb;
    --blue-dark: #1d4ed8;
    --text: #0f172a;
    --text-secondary: #64748b;
    --bg: #ffffff;
    --bg-subtle: #f8faff;
    --border: #e2e8f0;
    --green: #16a34a;
    --orange: #c2410c;
    --orange-light: #fff7ed;
    --radius-card: 16px;
    --radius-btn: 10px;
    --shadow-card: 0 2px 8px rgba(0,0,0,.05), 0 16px 48px rgba(0,0,0,.07);
    --transition: 0.2s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

/* 2. Layout
   ============================================================ */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.mb-4 { margin-bottom: 16px; }
.mb-8 { margin-bottom: 32px; }
.text-center { text-align: center; }
.text-secondary { color: var(--text-secondary); }

/* 3. Typographie
   ============================================================ */
h1, h2, h3, h4 { font-weight: 900; line-height: 1.1; color: var(--text); }
h1 { font-size: 64px; letter-spacing: -2.5px; }
h2 { font-size: 40px; letter-spacing: -1.5px; }
h3 { font-size: 24px; letter-spacing: -0.5px; }
h4 { font-size: 18px; }
p { line-height: 1.7; }
.lead { font-size: 20px; color: var(--text-secondary); line-height: 1.6; }
.small { font-size: 14px; }

/* 4. Boutons
   ============================================================ */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 28px; border-radius: var(--radius-btn);
    font-size: 16px; font-weight: 600; cursor: pointer;
    border: none; transition: all var(--transition);
    text-decoration: none; white-space: nowrap;
}
.btn-primary {
    background: var(--blue); color: #fff;
}
.btn-primary:hover { background: var(--blue-dark); text-decoration: none; transform: translateY(-1px); }
.btn-secondary {
    background: transparent; color: var(--blue);
    border: 2px solid var(--blue);
}
.btn-secondary:hover { background: var(--blue); color: #fff; text-decoration: none; }
.btn-lg { padding: 18px 36px; font-size: 18px; }
.btn-sm { padding: 8px 16px; font-size: 14px; }

/* 5. Cards
   ============================================================ */
.card {
    background: var(--bg); border: 1px solid var(--border);
    border-radius: var(--radius-card); padding: 28px;
    box-shadow: var(--shadow-card);
    transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,.08), 0 24px 64px rgba(0,0,0,.1); }
.card-link { text-decoration: none; color: inherit; display: block; }

/* 6. Badges
   ============================================================ */
.badge {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 4px 12px; border-radius: 999px; font-size: 13px; font-weight: 600;
}
.badge-blue { background: #eff6ff; color: var(--blue); }
.badge-green { background: #f0fdf4; color: var(--green); }
.badge-urgent { background: var(--orange-light); color: var(--orange); }
.badge-gray { background: #f1f5f9; color: var(--text-secondary); }

/* 7. Navigation
   ============================================================ */
.nav {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255,255,255,0.95); backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0 24px; height: 64px;
    display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { font-size: 20px; font-weight: 900; color: var(--text); letter-spacing: -0.5px; text-decoration: none; }
.nav-logo span { color: var(--blue); }
.nav-links { display: flex; align-items: center; gap: 32px; list-style: none; }
.nav-links a { font-size: 15px; font-weight: 500; color: var(--text-secondary); transition: color var(--transition); }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-cta { margin-left: 16px; }
.nav-hamburger { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-mobile { display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border); padding: 16px 24px;
    flex-direction: column; gap: 16px; }
.nav-mobile.open { display: flex; }

/* 8. Hero
   ============================================================ */
.hero {
    padding: 96px 0 80px;
    background: linear-gradient(180deg, var(--bg-subtle) 0%, var(--bg) 100%);
}
.hero-eyebrow {
    font-size: 14px; font-weight: 600; color: var(--blue);
    text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px;
}
.hero h1 { margin-bottom: 24px; max-width: 720px; }
.hero .lead { margin-bottom: 40px; max-width: 600px; }
.hero-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 48px; margin-top: 64px; padding-top: 48px; border-top: 1px solid var(--border); flex-wrap: wrap; }
.hero-stat-value { font-size: 36px; font-weight: 900; color: var(--blue); letter-spacing: -1px; }
.hero-stat-label { font-size: 14px; color: var(--text-secondary); margin-top: 4px; }

/* 9. Sections
   ============================================================ */
.section { padding: 80px 0; }
.section-title { text-align: center; margin-bottom: 16px; }
.section-subtitle { text-align: center; color: var(--text-secondary); font-size: 18px; margin-bottom: 56px; max-width: 600px; margin-left: auto; margin-right: auto; }

/* 10. Formulaire
   ============================================================ */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.form-input {
    width: 100%; padding: 12px 16px;
    border: 2px solid var(--border); border-radius: 8px;
    font-size: 16px; font-family: inherit; color: var(--text);
    background: var(--bg); transition: border-color var(--transition);
    outline: none;
}
.form-input:focus { border-color: var(--blue); }
.form-input.error { border-color: var(--orange); }
.form-error { color: var(--orange); font-size: 13px; margin-top: 4px; }
.form-check { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 12px; }
.form-check input[type="checkbox"] { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--blue); flex-shrink: 0; }
.form-check label { font-size: 14px; color: var(--text-secondary); line-height: 1.5; }
.form-check label a { color: var(--blue); }
.form-lead-box {
    background: var(--bg-subtle); border: 1px solid var(--border);
    border-radius: var(--radius-card); padding: 40px;
    margin-top: 40px;
}
.form-lead-title { font-size: 24px; font-weight: 900; margin-bottom: 8px; }
.form-lead-subtitle { color: var(--text-secondary); margin-bottom: 32px; }

/* 11. Simulateur
   ============================================================ */
.sim-container { max-width: 680px; margin: 0 auto; padding: 40px 0; }
.sim-header { text-align: center; margin-bottom: 48px; }
.sim-progress-wrap { margin-bottom: 32px; }
.sim-progress-bar { height: 4px; background: var(--border); border-radius: 99px; overflow: hidden; }
.sim-progress-fill { height: 100%; background: var(--blue); border-radius: 99px; transition: width 0.4s ease; }
.sim-step-label { font-size: 13px; color: var(--text-secondary); text-align: right; margin-top: 8px; }
.sim-step { animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.sim-question { font-size: 26px; font-weight: 900; letter-spacing: -0.5px; margin-bottom: 8px; }
.sim-hint { color: var(--text-secondary); margin-bottom: 32px; }
.sim-options { display: grid; gap: 12px; }
.sim-option {
    display: flex; align-items: center; gap: 16px; padding: 20px 24px;
    border: 2px solid var(--border); border-radius: 12px; cursor: pointer;
    background: var(--bg); transition: all var(--transition); text-align: left;
    font-size: 16px; font-weight: 500; font-family: inherit;
}
.sim-option:hover { border-color: var(--blue); background: #eff6ff; }
.sim-option.selected { border-color: var(--blue); background: #eff6ff; color: var(--blue); }
.sim-option-icon { font-size: 24px; width: 40px; text-align: center; flex-shrink: 0; }
.sim-multi-hint { font-size: 13px; color: var(--text-secondary); margin-bottom: 12px; }
.sim-nav { display: flex; align-items: center; justify-content: space-between; margin-top: 40px; }
.sim-results-header { text-align: center; margin-bottom: 40px; }
.sim-results-count { font-size: 48px; font-weight: 900; color: var(--blue); }
.sim-results-label { color: var(--text-secondary); font-size: 18px; }
.sim-cards { display: grid; gap: 16px; margin-bottom: 40px; }
.sim-card {
    border: 1px solid var(--border); border-radius: 12px; padding: 24px;
    display: flex; align-items: flex-start; justify-content: space-between; gap: 16px;
    background: var(--bg);
}
.sim-card-name { font-weight: 700; font-size: 16px; margin-bottom: 4px; }
.sim-card-type { font-size: 13px; color: var(--text-secondary); }
.sim-card-amount { font-size: 22px; font-weight: 900; color: var(--green); white-space: nowrap; }
.sim-card-deadline { font-size: 12px; color: var(--orange); font-weight: 600; margin-top: 4px; }

/* 12. Blog
   ============================================================ */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.blog-card { text-decoration: none; color: inherit; }
.blog-card:hover h3 { color: var(--blue); }
.blog-card-img { aspect-ratio: 16/9; background: var(--bg-subtle); border-radius: 12px; margin-bottom: 20px; overflow: hidden; }
.blog-card-date { font-size: 13px; color: var(--text-secondary); margin-bottom: 8px; }
.blog-card h3 { font-size: 18px; margin-bottom: 8px; transition: color var(--transition); line-height: 1.3; }
.blog-card p { font-size: 15px; color: var(--text-secondary); }
.blog-post-content { max-width: 720px; margin: 0 auto; }
.blog-post-content h2 { font-size: 28px; margin: 48px 0 16px; }
.blog-post-content h3 { font-size: 22px; margin: 32px 0 12px; }
.blog-post-content p { margin-bottom: 20px; font-size: 17px; line-height: 1.8; }
.blog-post-content ul, .blog-post-content ol { margin: 0 0 20px 24px; }
.blog-post-content li { margin-bottom: 8px; font-size: 17px; line-height: 1.7; }
.blog-post-content table { width: 100%; border-collapse: collapse; margin-bottom: 24px; font-size: 15px; }
.blog-post-content th { background: var(--bg-subtle); padding: 12px 16px; text-align: left; border: 1px solid var(--border); font-weight: 600; }
.blog-post-content td { padding: 12px 16px; border: 1px solid var(--border); }

/* 13. Countdown Wallonie
   ============================================================ */
.countdown-banner {
    background: var(--orange); color: #fff;
    padding: 16px 24px; border-radius: 12px; margin-bottom: 32px;
    display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}
.countdown-label { font-weight: 700; font-size: 15px; }
.countdown-timer { display: flex; gap: 16px; }
.countdown-unit { text-align: center; }
.countdown-num { font-size: 28px; font-weight: 900; line-height: 1; }
.countdown-unit-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; opacity: 0.85; }

/* 14. Footer
   ============================================================ */
.footer {
    background: var(--text); color: #94a3b8;
    padding: 48px 0 32px;
    margin-top: 80px;
}
.footer-logo { font-size: 18px; font-weight: 900; color: #fff; margin-bottom: 8px; }
.footer-logo span { color: var(--blue); }
.footer-tagline { font-size: 14px; margin-bottom: 32px; }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; margin-bottom: 32px; }
.footer-links a { color: #94a3b8; font-size: 14px; transition: color var(--transition); }
.footer-links a:hover { color: #fff; text-decoration: none; }
.footer-bottom { border-top: 1px solid #1e293b; padding-top: 24px; font-size: 13px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.footer-rgpd { font-size: 12px; color: #64748b; margin-top: 8px; }

/* 15. Tables (aides)
   ============================================================ */
.aide-table { width: 100%; border-collapse: collapse; margin: 32px 0; }
.aide-table th { background: var(--bg-subtle); padding: 14px 16px; text-align: left; font-weight: 700; font-size: 14px; border-bottom: 2px solid var(--border); }
.aide-table td { padding: 14px 16px; border-bottom: 1px solid var(--border); font-size: 15px; }
.aide-table tr:hover td { background: var(--bg-subtle); }
.amount-green { color: var(--green); font-weight: 700; }

/* 16. Régions BE
   ============================================================ */
.region-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.region-card { border-radius: var(--radius-card); padding: 32px; text-align: center; cursor: pointer; text-decoration: none; display: block; transition: transform var(--transition); border: 2px solid transparent; }
.region-card:hover { transform: translateY(-4px); text-decoration: none; }
.region-card.wallonie { background: #fff7ed; border-color: var(--orange); }
.region-card.bruxelles { background: #eff6ff; border-color: var(--blue); }
.region-card.flandre { background: #f0fdf4; border-color: var(--green); }
.region-card-icon { font-size: 40px; margin-bottom: 12px; }
.region-card-name { font-size: 20px; font-weight: 900; margin-bottom: 8px; }
.region-card-desc { font-size: 14px; color: var(--text-secondary); }

/* 17. BE Hero — photo split, green kicker, green CTA
   ============================================================ */
.hero-be {
    background: linear-gradient(135deg, #f0fdf4 0%, #e8f5e9 25%, #ffffff 70%);
}
.hero-kicker {
    display: inline-flex; align-items: center; gap: 16px;
    background: var(--green); color: #fff;
    border-radius: 14px; padding: 14px 22px; margin-bottom: 24px;
}
.hero-kicker-num {
    font-size: 56px; font-weight: 900; line-height: 1; letter-spacing: -2.5px;
}
.hero-kicker-label {
    font-size: 15px; font-weight: 600; line-height: 1.4; opacity: .95;
}
.hero-kicker-sub {
    font-size: 12px; font-weight: 400; opacity: .75; display: block; margin-top: 2px;
}
.hero-photo {
    position: relative; border-radius: 20px; overflow: hidden; align-self: start;
    box-shadow: 0 24px 64px rgba(0,0,0,.15);
    flex-shrink: 0;
}
.hero-photo img {
    width: 100%; height: 480px; object-fit: cover; display: block;
}
.hero-photo-badge {
    position: absolute; bottom: 20px; left: 20px;
    background: rgba(255,255,255,.95); backdrop-filter: blur(8px);
    border-radius: 12px; padding: 14px 18px;
    box-shadow: 0 4px 20px rgba(0,0,0,.12);
}
.hero-photo-badge-num {
    font-size: 34px; font-weight: 900; color: var(--green); line-height: 1; letter-spacing: -1.5px;
}
.hero-photo-badge-label {
    font-size: 12px; color: var(--text-secondary); margin-top: 3px; line-height: 1.4;
}
.btn-cta-be {
    background: var(--green); color: #fff;
    box-shadow: 0 4px 14px rgba(22,163,74,.3);
}
.btn-cta-be:hover {
    background: #15803d; text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(22,163,74,.4);
}

/* 17. Responsive (breakpoint 768px)
   ============================================================ */
@media (max-width: 768px) {
    h1 { font-size: 36px; letter-spacing: -1px; }
    h2 { font-size: 28px; }
    .container { padding: 0 16px; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .blog-grid { grid-template-columns: 1fr; }
    .region-cards { grid-template-columns: 1fr; }
    .hero { padding: 64px 0 48px; }
    .hero-stats { gap: 24px; }
    .nav-links, .nav-cta { display: none; }
    .nav-hamburger { display: block; }
    .section { padding: 48px 0; }
    .sim-question { font-size: 20px; }
    .countdown-timer { gap: 8px; }
    .form-lead-box { padding: 24px; }
    .hero-photo { display: none; }
    .hero-kicker-num { font-size: 40px; }
}