/* Pages d'inscription (étudiant et enseignant) */
:root { --c-primary: #8B6F47; --c-primary-dark: #6B5538; --c-primary-light: #A0826D; --c-accent: #D4A574; --c-soft: #F0E6D2; --c-ultra: #FFF9F5; }
* { box-sizing: border-box; }
html, body { min-height: 100%; }
body { margin: 0; font-family: 'Inter', -apple-system, 'Segoe UI', sans-serif; color: #2b2b2b; background: #F7F4EE; -webkit-font-smoothing: antialiased; overflow-x: hidden; }

.rg-shell { min-height: 100vh; min-height: 100dvh; display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); }

/* ---------- Panneau de marque ---------- */
.rg-brand {
    position: relative; color: #fff; overflow: hidden;
    background: radial-gradient(circle at 15% 12%, rgba(212, 165, 116, .35), transparent 45%), radial-gradient(circle at 90% 90%, rgba(255, 255, 255, .10), transparent 40%),
                linear-gradient(145deg, var(--c-primary-dark) 0%, var(--c-primary) 55%, var(--c-primary-light) 100%);
}
.rg-brand::before { content: ''; position: absolute; inset: 0; opacity: .07; pointer-events: none;
    background-image: linear-gradient(rgba(255,255,255,.9) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.9) 1px, transparent 1px); background-size: 42px 42px; }
.rg-brand-in { position: sticky; top: 0; min-height: 100vh; min-height: 100dvh; padding: clamp(2rem, 4vw, 3.5rem); display: flex; flex-direction: column; justify-content: space-between; }
.rg-logo { width: 88px; height: 88px; border-radius: 50%; background: #fff; padding: 5px; box-shadow: 0 10px 30px rgba(0,0,0,.25); }
.rg-logo img { width: 100%; height: 100%; object-fit: contain; border-radius: 50%; }
.rg-brand h1 { font-size: clamp(2rem, 3.4vw, 2.8rem); font-weight: 800; letter-spacing: -1px; margin: 1.1rem 0 .3rem; }
.rg-brand .tag { opacity: .92; line-height: 1.5; margin: 0; max-width: 26rem; }
.rg-steps { list-style: none; padding: 0; margin: 2rem 0 0; max-width: 26rem; position: relative; }
.rg-steps li { display: flex; gap: .9rem; padding-bottom: 1.35rem; position: relative; }
.rg-steps li:not(:last-child)::before { content: ''; position: absolute; left: 17px; top: 38px; bottom: 2px; width: 2px; background: rgba(255,255,255,.28); }
.rg-steps .n { flex: 0 0 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,.16); border: 1.5px solid rgba(255,255,255,.4); display: flex; align-items: center; justify-content: center; font-weight: 700; }
.rg-steps .now .n { background: #fff; color: var(--c-primary-dark); border-color: #fff; }
.rg-steps strong { display: block; font-size: .96rem; }
.rg-steps span { font-size: .84rem; opacity: .85; }
.rg-uni { font-size: .82rem; opacity: .85; display: flex; gap: .6rem; align-items: center; }

/* ---------- Formulaire ---------- */
.rg-panel { background: #fff; display: flex; justify-content: center; padding: clamp(1.5rem, 4vw, 3rem); }
.rg-card { width: 100%; max-width: 40rem; }
.rg-mobile-brand { display: none; }
.rg-card h2 { font-size: 1.75rem; font-weight: 800; color: var(--c-primary-dark); margin: 0 0 .35rem; letter-spacing: -.5px; }
.rg-card .rg-sub { color: #7a6a55; margin: 0 0 1.25rem; }
.rg-info { display: flex; gap: .7rem; background: #FFF8E1; border-left: 4px solid var(--c-accent); border-radius: 10px; padding: .75rem 1rem; font-size: .86rem; color: #6B5538; margin-bottom: 1.5rem; }
.rg-alert { display: flex; gap: .65rem; background: #FFEBEE; border-left: 4px solid #E53935; color: #B71C1C; border-radius: 10px; padding: .8rem 1rem; font-size: .9rem; margin-bottom: 1.25rem; }
.rg-alert ul { margin: 0; padding-left: 1.1rem; }

.rg-sec { margin-bottom: 1.6rem; }
.rg-sec-title { display: flex; align-items: center; gap: .6rem; font-size: .8rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--c-primary-dark);
                padding-bottom: .55rem; margin-bottom: 1rem; border-bottom: 1px solid #F0E6D2; }
.rg-sec-title i { width: 28px; height: 28px; border-radius: 8px; background: var(--c-ultra); color: var(--c-primary); display: inline-flex; align-items: center; justify-content: center; font-size: .8rem; border: 1px solid var(--c-soft); }

.rg-label { display: block; font-size: .76rem; font-weight: 700; letter-spacing: .4px; text-transform: uppercase; color: var(--c-primary); margin-bottom: .4rem; }
.rg-label .req { color: #C62828; }
.rg-input { position: relative; }
.rg-input > .ic { position: absolute; left: .95rem; top: 50%; transform: translateY(-50%); color: var(--c-accent); pointer-events: none; font-size: .95rem; }
.rg-input .form-control, .rg-input .form-select {
    height: 3rem; padding-left: 2.6rem; font-size: 1rem; border: 1.5px solid #E4D8C4; border-radius: 12px; background-color: #FCFAF6; color: #222;
    transition: border-color .15s, box-shadow .15s, background .15s;
}
.rg-input .form-select { background-position: right .9rem center; }
.rg-input .form-control::placeholder { color: #b2a998; opacity: 1; }
.rg-input .form-control:focus, .rg-input .form-select:focus { border-color: var(--c-primary); background-color: #fff; box-shadow: 0 0 0 .25rem rgba(139, 111, 71, .16); }
.rg-input .is-invalid { border-color: #C62828; background-color: #FFF6F6; background-image: none; }
.rg-input.has-toggle .form-control { padding-right: 3.1rem; }
.rg-toggle { position: absolute; right: .3rem; top: 50%; transform: translateY(-50%); width: 2.5rem; height: 2.5rem; border: 0; background: transparent; color: var(--c-primary); border-radius: 10px; }
.rg-toggle:hover { background: var(--c-ultra); }
.rg-err { color: #C62828; font-size: .8rem; margin-top: .3rem; }
.rg-hint { color: #8a7a62; font-size: .78rem; margin-top: .3rem; }

.rg-meter { height: 6px; border-radius: 4px; background: #EFE7D8; overflow: hidden; margin-top: .5rem; }
.rg-meter > span { display: block; height: 100%; width: 0; transition: width .25s, background .25s; }
.rg-match { font-size: .78rem; margin-top: .3rem; }

.rg-btn { width: 100%; height: 3.2rem; border: 0; border-radius: 12px; color: #fff; font-weight: 700; font-size: 1rem; cursor: pointer;
          background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-dark) 100%); box-shadow: 0 8px 20px rgba(107, 85, 56, .28);
          display: flex; align-items: center; justify-content: center; gap: .6rem; transition: transform .12s, box-shadow .15s, opacity .15s; }
.rg-btn:hover { transform: translateY(-1px); box-shadow: 0 12px 26px rgba(107, 85, 56, .34); }
.rg-btn[disabled] { opacity: .75; cursor: progress; transform: none; }
.rg-login { display: block; text-align: center; margin-top: 1rem; color: var(--c-primary-dark); font-weight: 600; text-decoration: none; }
.rg-login:hover { text-decoration: underline; }
.rg-note { margin-top: 1.25rem; text-align: center; font-size: .8rem; color: #8a7a62; }
.rg-card :focus-visible { outline: 3px solid rgba(139,111,71,.4); outline-offset: 2px; }

/* ---------- Tablette et mobile ---------- */
@media (max-width: 991.98px) {
    .rg-shell { grid-template-columns: 1fr; }
    .rg-brand { display: none; }
    .rg-panel { padding: 0 0 2rem; background: linear-gradient(180deg, var(--c-primary-dark) 0, var(--c-primary) 230px, #F7F4EE 230px); }
    .rg-card { max-width: 40rem; padding: 0 1rem; }
    .rg-mobile-brand { display: block; text-align: center; color: #fff; padding: calc(1.5rem + env(safe-area-inset-top)) 0 1.4rem; }
    .rg-mobile-brand .rg-logo { width: 72px; height: 72px; margin: 0 auto .6rem; }
    .rg-mobile-brand h1 { font-size: 1.7rem; font-weight: 800; margin: 0; }
    .rg-mobile-brand p { margin: .2rem 0 0; font-size: .82rem; opacity: .9; }
    .rg-box { background: #fff; border-radius: 20px; padding: 1.5rem 1.25rem 1.25rem; box-shadow: 0 18px 40px rgba(107, 85, 56, .18); }
    .rg-card h2 { font-size: 1.45rem; }
}
@media (max-width: 575.98px) { .rg-box { padding: 1.25rem 1rem 1rem; } .rg-input .form-control, .rg-input .form-select { font-size: 16px; } }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

.rg-alt { display: block; text-align: center; margin-top: .6rem; color: #8a7a62; font-size: .88rem; text-decoration: none; }
.rg-alt:hover { color: var(--c-primary-dark); text-decoration: underline; }