/* =============================================================
   Kheper — Styles pages d'authentification
   Fond sombre #0D0A05 · Accents or #C9A84C · Police Cinzel
   ============================================================= */

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

:root {
    --bg:           #0D0A05;
    --bg-card:      #16120A;
    --bg-input:     #1E1810;
    --border:       #3A2E18;
    --gold:         #C9A84C;
    --gold-light:   #E2C47A;
    --gold-dim:     #7A6330;
    --text:         #E8DCC8;
    --text-muted:   #7A6E5C;
    --error:        #C0392B;
    --error-bg:     #2C1210;
    --success:      #27AE60;
    --success-bg:   #0F2A18;
    --radius:       6px;
    --transition:   0.2s ease;
}

html, body {
    height: 100%;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Cinzel', Georgia, serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1.5rem;
    background-image:
        radial-gradient(ellipse 80% 50% at 50% 0%, rgba(201,168,76,0.06) 0%, transparent 70%);
}

/* ── Logo / en-tête ── */
.auth-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.auth-logo {
    font-size: 2.6rem;
    letter-spacing: 0.25em;
    color: var(--gold);
    text-transform: uppercase;
    line-height: 1;
}

.auth-logo span {
    display: block;
    font-size: 0.65rem;
    letter-spacing: 0.4em;
    color: var(--text-muted);
    margin-top: 0.5rem;
    font-family: 'Cinzel', serif;
    text-transform: uppercase;
}

.auth-glyph {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    opacity: 0.6;
    letter-spacing: 0.1em;
}

/* ── Carte du formulaire ── */
.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 100%;
    max-width: 420px;
    padding: 2.5rem 2rem;
    box-shadow:
        0 0 0 1px rgba(201,168,76,0.04),
        0 8px 40px rgba(0,0,0,0.6);
    position: relative;
    overflow: hidden;
}

/* Liseré or en haut de la carte */
.auth-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.auth-card h1 {
    font-size: 1.2rem;
    letter-spacing: 0.2em;
    color: var(--gold);
    text-align: center;
    text-transform: uppercase;
    margin-bottom: 2rem;
}

/* ── Alertes ── */
.alert {
    padding: 0.7rem 1rem;
    border-radius: var(--radius);
    font-size: 0.82rem;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.alert::before {
    flex-shrink: 0;
    font-size: 1rem;
}

.alert-error {
    background: var(--error-bg);
    border: 1px solid var(--error);
    color: #E57373;
}
.alert-error::before { content: '✕'; }

.alert-success {
    background: var(--success-bg);
    border: 1px solid var(--success);
    color: #81C784;
}
.alert-success::before { content: '✓'; }

/* ── Champs ── */
.field {
    margin-bottom: 1.25rem;
}

.field label {
    display: block;
    font-size: 0.72rem;
    letter-spacing: 0.2em;
    color: var(--gold-dim);
    text-transform: uppercase;
    margin-bottom: 0.45rem;
}

.field input {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-family: 'Cinzel', Georgia, serif;
    font-size: 0.9rem;
    padding: 0.65rem 0.85rem;
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.field input::placeholder {
    color: var(--text-muted);
    font-size: 0.82rem;
}

.field input:focus {
    border-color: var(--gold-dim);
    box-shadow: 0 0 0 3px rgba(201,168,76,0.12);
}

.field input.invalid {
    border-color: var(--error);
    box-shadow: 0 0 0 3px rgba(192,57,43,0.15);
}

.field-hint {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
    letter-spacing: 0.04em;
}

/* ── Bouton principal ── */
.btn-primary {
    width: 100%;
    background: linear-gradient(135deg, #A07830, var(--gold));
    border: none;
    border-radius: var(--radius);
    color: #0D0A05;
    font-family: 'Cinzel', serif;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    padding: 0.8rem 1rem;
    cursor: pointer;
    transition: filter var(--transition), transform var(--transition);
    margin-top: 0.5rem;
}

.btn-primary:hover {
    filter: brightness(1.12);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
    filter: brightness(0.96);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* ── Séparateur ── */
.auth-sep {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 1.5rem 0;
    color: var(--text-muted);
    font-size: 0.72rem;
    letter-spacing: 0.15em;
}
.auth-sep::before, .auth-sep::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

/* ── Lien vers l'autre page ── */
.auth-switch {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

.auth-switch a {
    color: var(--gold);
    text-decoration: none;
    transition: color var(--transition);
}

.auth-switch a:hover {
    color: var(--gold-light);
    text-decoration: underline;
}

/* ── Indicateur de force du mot de passe ── */
.pwd-strength {
    height: 3px;
    border-radius: 2px;
    margin-top: 0.4rem;
    background: var(--border);
    overflow: hidden;
    transition: all var(--transition);
}

.pwd-strength-bar {
    height: 100%;
    width: 0%;
    border-radius: 2px;
    transition: width 0.3s ease, background 0.3s ease;
}

.pwd-strength-bar.weak   { width: 33%; background: var(--error); }
.pwd-strength-bar.medium { width: 66%; background: #E6A817; }
.pwd-strength-bar.strong { width: 100%; background: var(--success); }

/* ── Responsif ── */
@media (max-width: 480px) {
    .auth-card { padding: 2rem 1.25rem; }
    .auth-logo { font-size: 2rem; }
}