.background {
position: fixed;
inset: 0;
background:
    radial-gradient(circle at top left, rgba(59, 130, 246, 0.25), transparent 30%),
    radial-gradient(circle at bottom right, rgba(34, 197, 94, 0.20), transparent 30%),
    linear-gradient(135deg, #0b1020, #111827 60%, #0f172a);
z-index: -1;
}

/* Removido o flex do body e ajustado para posicionamento relativo */
body {
position: relative;
min-height: 100vh;
margin: 0;
background-color: #f4f7f6;
}

/* Estilo para a topbar com o botão voltar */
.topbar {
position: absolute;
top: 20px;
right: 20px;
z-index: 10;
}

.header-buttons {
        display: flex;
        gap: 12px; /* Espaçamento entre os botões */
        align-items: center;
    }

.admin-btn, .voltar-btn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-decoration: none;
    color: white;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.2s ease;
    font-size: 14px;
    white-space: nowrap;
}

.admin-btn {
padding: 10px 22px;
background: rgba(59, 130, 246, 0.2);
border-color: rgba(59, 130, 246, 0.3);
}

.voltar-btn {
    padding: 8px 16px;
}

.login-container {
display: flex;
justify-content: center;
align-items: center;
min-height: 100vh;
}

/* Efeito quando passa o mouse no botão */
.btn-entrar:hover {
background-color: #1d4ed8;
}

:root {
    --success-color: #10b981;
    --danger-color: #ef4444;
    --border-radius: 8px;
}
@keyframes slideIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-slide-in {
    animation: slideIn 0.3s ease-out forwards;
}

/* ============================================
   ESTILO DAS MENSAGENS
   ============================================ */
.flash-message {
    padding: 1rem;
    border-radius: var(--border-radius);
    font-size: 0.95rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    width: 100%;
}

/* Cores para Sucesso / Info */
.flash-message[data-category="success"],
.flash-message[data-category="info"] {
    background-color: rgba(16, 185, 129, 0.1) !important;
    color: var(--success-color) !important;
    border: 1px solid rgba(16, 185, 129, 0.3) !important;
}

/* Cores para Erro / Perigo / Aviso */
.flash-message[data-category="danger"],
.flash-message[data-category="error"],
.flash-message[data-category="warning"] {
    background-color: rgba(239, 68, 68, 0.1) !important;
    color: var(--danger-color) !important;
    border: 1px solid rgba(239, 68, 68, 0.3) !important;
}

.flash-message svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-right: 12px;
}