:root { 
    --brown: #5D4037; 
    --brown-light: #8D6E63;
    --bg: #F8F9FA; 
    --blue: #1A73E8; 
    --green: #2E7D32; 
    --shadow: 0 10px 25px rgba(0,0,0,0.08);
}

body { font-family: 'Poppins', sans-serif; background: var(--bg); margin: 0; color: #444; }

/* HEADER COMPACT */
.main-header { background: var(--brown); color: white; padding: 12px 20px; box-shadow: 0 2px 10px rgba(0,0,0,0.2); }
.header-content { display: flex; align-items: center; gap: 15px; }
.top-logo { height: 48px; border-radius: 50%; background: white; padding: 2px; }
.brand-name { margin: 0; font-size: 1.1em; line-height: 1; font-weight: 800; }
.header-slogan { margin-top: 4px; font-size: 0.65em; font-style: italic; opacity: 0.8; text-align: right; width: 100%; }

/* CARTES CARAVANE */
.caravane-card { background: white; border-radius: 20px; margin-bottom: 25px; overflow: hidden; box-shadow: var(--shadow); border: 1px solid #eee; }
.card-image-header { height: 190px; background-size: cover; background-position: center; }
.card-body-info { padding: 20px; text-align: center; }
.card-body-info h3 { margin: 0 0 10px 0; font-size: 1.4em; color: var(--brown); }
.route-tag { background: #F3E5F5; color: var(--brown); padding: 6px 15px; border-radius: 30px; font-size: 0.75em; display: inline-block; margin-bottom: 15px; font-weight: 600; }

/* FORMULAIRE PREMIUM */
.premium-card { background: white; border-radius: 20px; overflow: hidden; box-shadow: var(--shadow); max-width: 480px; margin: auto; }
.premium-header { background: var(--brown); color: white; padding: 20px; font-weight: bold; text-align: center; display: flex; align-items: center; justify-content: center; gap: 10px; font-size: 1.1em; }
.premium-body { padding: 20px; }

.stepper-container { margin-bottom: 25px; text-align: center; }
.stepper-container label { font-size: 0.85em; font-weight: 600; color: #777; display: block; margin-bottom: 10px; }
.modern-stepper { display: flex; justify-content: center; align-items: center; background: #f0f0f0; border-radius: 12px; width: 160px; margin: auto; height: 45px; }
.modern-stepper button { flex: 1; border: none; background: none; font-size: 1.5em; color: var(--brown); cursor: pointer; height: 100%; }
.modern-stepper input { width: 50px; text-align: center; border: none; background: none; font-weight: bold; font-size: 1.2em; }

.passager-block { background: #fdfdfd; border: 1px solid #f0f0f0; border-radius: 15px; padding: 15px; margin-bottom: 15px; transition: 0.3s; }
.passager-block:hover { border-color: var(--brown-light); }
.passager-title { font-size: 0.8em; font-weight: 700; color: var(--brown-light); text-transform: uppercase; margin-bottom: 10px; display: block; }

.input-group { position: relative; margin-bottom: 12px; }
.input-group i { position: absolute; left: 12px; top: 13px; color: #aaa; font-size: 0.9em; }
.input-group input, .input-group select { width: 100%; padding: 12px 12px 12px 35px; border: 1.5px solid #eee; border-radius: 10px; font-size: 0.95em; outline: none; background: #fff; box-sizing: border-box; }
.input-group input:focus { border-color: var(--brown-light); }

/* BOUTONS */
.btn-main, .btn-wave, .btn-success { width: 100%; height: 52px; border: none; border-radius: 12px; font-weight: bold; font-size: 1em; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 10px; text-decoration: none; transition: 0.3s; }
.btn-main { background: var(--brown); color: white; }
.btn-wave { background: var(--blue); color: white; margin-top: 15px; }
.btn-success { background: var(--green); color: white; }
.btn-main:active, .btn-wave:active { transform: scale(0.98); }

/* PAGES */
.page { display: none; padding: 20px 15px; animation: slideUp 0.4s ease-out; }
.page.active { display: block; }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

.info-alert { background: #E3F2FD; color: #0D47A1; padding: 15px; border-radius: 12px; font-size: 0.85em; line-height: 1.4; margin-bottom: 20px; border-left: 5px solid var(--blue); }
.conf-box { display: none; margin-top: 20px; padding-top: 20px; border-top: 2px dashed #eee; }

/* FOOTER */
.site-footer { background: var(--brown); color: white; padding: 40px 20px; text-align: center; margin-top: 40px; }
.footer-logo { height: 55px; border-radius: 50%; background: white; padding: 3px; margin-bottom: 15px; }
.footer-contact { font-weight: bold; margin-bottom: 20px; font-size: 0.95em; letter-spacing: 1px; }
.footer-credits { font-size: 0.8em; opacity: 0.8; border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; }
.built-by { display: block; margin-top: 10px; color: #fff; font-weight: bold; opacity: 0.6; }