/* Resete básico e Fonte */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* Fundo com o gradiente da imagem original */
body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #5b7fff 0%, #7b51d3 100%);
    padding: 1rem;
}

/* Oculta elementos apenas para leitores de tela */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Card Branco Central */
.login-card {
    width: 100%;
    max-width: 440px;
    padding: 2.5rem 2rem;
    background: #ffffff;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.login-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.login-header .emoji-logo {
    font-size: 55px;
    display: block;
    margin-bottom: 0.5rem;
}

.login-header h1 {
    font-size: 1.6rem;
    color: #222;
    font-weight: 700;
}

/* Formulário e Inputs */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.input-group input {
    width: 100%;
    padding: 0.85rem 1rem;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}

.input-group input:focus {
    border-color: #007bff;
}

/* Botão Entrar */
.btn-primary {
    width: 100%;
    padding: 0.85rem;
    background-color: #007bff;
    color: #ffffff;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-primary:hover {
    background-color: #0056b3;
}

/* Seção Mural */
.mural-secao {
    margin-top: 1.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    border-top: 1px dashed #d0d0d0;
    padding-top: 1.5rem;
}

.btn-secondary {
    width: 100%;
    padding: 0.75rem;
    background-color: #f8f9fa;
    color: #0056b3;
    border: 1.5px solid #007bff;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-secondary:hover {
    background-color: #e9ecef;
}

.mural-legenda {
    color: #777;
    font-size: 0.8rem;
}

/* Instalação PWA */
.pwa-install-container {
    text-align: center;
    padding-top: 1rem;
}

.btn-install {
    padding: 0.75rem 1.25rem;
    background-color: #2196f3;
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

/* Versão e Créditos */
.version-tag {
    margin-top: 1.5rem;
    text-align: center;
    color: #555;
    font-size: 0.8rem;
    line-height: 1.4;
}

.version-tag span {
    display: block;
}

.version-tag .credits {
    font-style: italic;
    color: #777;
}