/* ── Modale ──────────────────────────────────────────────────────────────── */

.sts-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(2px);
    z-index: 100;
}

.sts-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 101;
    width: min(420px, calc(100vw - 2rem));
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    gap: 0;
    overflow: hidden;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
}

.sts-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem 1rem;
    border-bottom: 1px solid var(--border);
}

.sts-modal-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
    color: var(--text-primary);
}

.sts-modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
    padding: 0.25rem;
    line-height: 1;
    transition: color 0.15s;
}

.sts-modal-close:hover { color: var(--text-primary); }

.sts-modal-body {
    padding: 1.25rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.sts-modal-footer {
    padding: 1rem 1.5rem 1.25rem;
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    border-top: 1px solid var(--border);
}

/* ── Champs ──────────────────────────────────────────────────────────────── */

.sts-field {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.sts-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary, var(--text-muted));
}

.sts-input {
    background: var(--bg-base, var(--bg-surface));
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.95rem;
    padding: 0.55rem 0.75rem;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
    width: 100%;
}

.sts-input:focus {
    border-color: var(--teal);
    box-shadow: 0 0 0 3px rgba(var(--teal-rgb, 15, 110, 86), 0.15);
}

.sts-input-error { border-color: var(--danger, #c0392b); }
.sts-input:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Alerte ──────────────────────────────────────────────────────────────── */

.sts-alert {
    padding: 0.6rem 0.9rem;
    border-radius: 6px;
    font-size: 0.875rem;
}

.sts-alert-error {
    background: rgba(192, 57, 43, 0.12);
    border: 1px solid rgba(192, 57, 43, 0.35);
    color: var(--danger, #e74c3c);
}

/* ── Boutons ─────────────────────────────────────────────────────────────── */

.sts-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: background 0.15s, opacity 0.15s;
    white-space: nowrap;
}

.sts-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.sts-btn-sm { padding: 0.35rem 0.75rem; font-size: 0.8rem; }

.sts-btn-primary {
    background: var(--teal);
    color: #fff;
}
.sts-btn-primary:hover:not(:disabled) { filter: brightness(1.1); }

.sts-btn-ghost {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
}
.sts-btn-ghost:hover:not(:disabled) {
    background: rgba(255,255,255,0.06);
    color: var(--text-primary);
}

/* ── Spinner inline ──────────────────────────────────────────────────────── */

.sts-spinner {
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: sts-spin 0.6s linear infinite;
    display: inline-block;
}

@keyframes sts-spin { to { transform: rotate(360deg); } }

/* ── Zone auth dans la nav ───────────────────────────────────────────────── */

.sts-nav-auth {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: auto;
    padding-right: 0.5rem;
}

.sts-nav-username {
    font-size: 0.85rem;
    color: var(--text-muted);
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Masquer la zone auth dans le menu mobile si besoin */
@media (max-width: 768px) {
    .sts-nav-auth { padding-right: 3rem; }
}