:root {
    --cor-primaria: #4361ee;
    --cor-primaria-escura: #3a56d8;
    --cor-secundaria: #7209b7;
    --cor-texto: #2b2d42;
    --cor-texto-secundaria: #6c757d;
    --cor-fundo: #f8f9fa;
    --cor-borda: #e9ecef;
    --cor-fundo-input: #ffffff;
    --cor-sucesso: #4cc9f0;
    --cor-alerta: #f8961e;
    --cor-erro: #f72585;
    --cor-muito-forte: #4895ef;
    --borda-radius: 12px;
    --borda-radius-pequeno: 8px;
    --transicao-rapida: 0.3s ease;
    --sombra: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

body {
    background-color: var(--cor-fundo);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    font-family: 'Poppins', sans-serif;
    color: var(--cor-texto);
    line-height: 1.6;
    position: relative;
    overflow-x: hidden;
}

.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #4361ee20, #7209b720);
    z-index: -1;
}

.container {
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: var(--borda-radius);
    box-shadow: var(--sombra);
    padding: 2.5rem;
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    flex: 1;
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.cabecalho {
    text-align: center;
    margin-bottom: 2rem;
}

.logo {
    width: 60px;
    height: 60px;
    margin-bottom: 1rem;
    filter: drop-shadow(0 4px 6px rgba(67, 97, 238, 0.3));
}

.titulo-principal {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--cor-primaria);
    margin-bottom: 0.5rem;
}

.subtitulo {
    color: var(--cor-texto-secundaria);
    font-size: 0.9rem;
    font-weight: 400;
}

.painel-senha {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.label-senha {
    font-weight: 500;
    color: var(--cor-texto);
    font-size: 0.9rem;
}

.input-container {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.input-senha {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--cor-borda);
    border-radius: var(--borda-radius-pequeno);
    font-size: 1.125rem;
    letter-spacing: 1px;
    background-color: var(--cor-fundo-input);
    transition: all var(--transicao-rapida);
    font-family: 'Courier New', monospace;
    font-weight: 600;
    color: var(--cor-texto);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.input-senha:focus {
    border-color: var(--cor-primaria);
    outline: none;
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

.botao-copiar {
    position: absolute;
    right: 0.625rem;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--cor-texto-secundaria);
    transition: all var(--transicao-rapida);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    border-radius: 50%;
}

.botao-copiar:hover {
    color: var(--cor-primaria);
    background-color: rgba(67, 97, 238, 0.1);
}

.botao-copiar svg {
    width: 20px;
    height: 20px;
}

.copiado-feedback {
    position: absolute;
    right: 3.5rem;
    background-color: var(--cor-primaria);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    opacity: 0;
    transition: opacity var(--transicao-rapida);
}

.copiado-feedback.ativo {
    opacity: 1;
}

.painel-opcoes {
    margin-bottom: 1.5rem;
}

.grupo-opcoes {
    border: none;
    padding: 0;
    margin: 0 0 1.5rem;
}

.legenda-opcoes {
    font-weight: 500;
    margin-bottom: 1rem;
    display: block;
    color: var(--cor-texto);
    font-size: 0.9rem;
}

.opcao {
    margin-bottom: 1rem;
}

.opcao-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    color: var(--cor-texto);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.75rem;
}

.opcao-label:hover {
    color: var(--cor-primaria);
}

.opcao-checkbox {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
    width: 1.125rem;
    height: 1.125rem;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;    
}

.checkbox-custom {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    left: 0;
    height: 1.125rem;
    width: 1.125rem;
    background-color: white;
    border: 2px solid var(--cor-texto);
    border-radius: 4px;
    transition: all var(--transicao-rapida);
}

.opcao-checkbox:checked~.checkbox-custom {
    background-color: var(--cor-primaria);
    border-color: var(--cor-primaria);
}

.checkbox-custom:after {
    content: "";
    position: absolute;
    display: none;
    left: 5px;
    top: 1px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.opcao-checkbox:checked~.checkbox-custom:after {
    display: block;
}

.controle-deslizante {
    display: flex;
    width: 100%;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.slider-comprimento {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--cor-borda);
    outline: none;
    margin: 10px 0;
}

.slider-comprimento::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--cor-primaria);
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    transition: all var(--transicao-rapida);
}

.slider-comprimento::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.3);
}

.valor-comprimento {
    font-weight: 600;
    color: var(--cor-primaria);
    background: rgba(67, 97, 238, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.botao-gerar {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--cor-primaria), var(--cor-secundaria));
    color: white;
    border: none;
    border-radius: var(--borda-radius-pequeno);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transicao-rapida);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(67, 97, 238, 0.3);
    position: relative;
    overflow: hidden;
}

.botao-gerar:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(67, 97, 238, 0.4);
}

.botao-gerar:active {
    transform: translateY(0);
}

.botao-gerar::after {
    content: "";
    position: absolute;
    top: -50%;
    left: -60%;
    width: 200%;
    height: 200%;
    background: linear-gradient(to right,
            rgba(255, 255, 255, 0) 0%,
            rgba(255, 255, 255, 0.1) 50%,
            rgba(255, 255, 255, 0) 100%);
    transform: rotate(30deg);
    transition: all 0.6s ease;
}

.botao-gerar:hover::after {
    left: 100%;
}

.botao-icone svg {
    width: 18px;
    height: 18px;
    stroke-width: 2.5;
}

.indicador-forca {
    margin-bottom: 2rem;
}

.cabecalho-forca {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.titulo-forca {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--cor-texto);
}

.texto-forca {
    font-weight: 600;
    font-size: 0.9rem;
}

.medidor-forca {
    height: 8px;
    background-color: var(--cor-borda);
    border-radius: 4px;
    margin: 0.5rem 0;
    overflow: hidden;
}

.barra-forca {
    height: 100%;
    width: 0%;
    border-radius: 4px;
    transition: all var(--transicao-rapida);
}

.legenda-forca {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--cor-texto-secundaria);
    margin-top: 0.25rem;
}

.senha-fraca {
    background-color: var(--cor-erro);
    width: 25%;
}

.senha-media {
    background-color: var(--cor-alerta);
    width: 50%;
}

.senha-forte {
    background-color: var(--cor-sucesso);
    width: 75%;
}

.senha-muito-forte {
    background-color: var(--cor-muito-forte);
    width: 100%;
}

.dicas {
    background-color: rgba(67, 97, 238, 0.05);
    padding: 1.25rem;
    border-radius: var(--borda-radius-pequeno);
    margin-top: 1.5rem;
    border-left: 4px solid var(--cor-primaria);
}

.titulo-dicas {
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--cor-primaria);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.titulo-dicas svg {
    width: 16px;
    height: 16px;
}

.lista-dicas {
    padding-left: 1.5rem;
}

.item-dica {
    color: var(--cor-texto-secundaria);
    margin-bottom: 0.5rem;
    font-size: 0.8rem;
    line-height: 1.6;
    position: relative;
}

.item-dica::marker {
    color: var(--cor-primaria);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Rodapé */
.rodape {
    margin: 2rem auto 0;
    padding-top: 1.5rem;
    border-top: 1px solid var(--cor-borda);
    width: 100%;
    max-width: 500px;
}

.rodape-conteudo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.rodape-texto {
    color: var(--cor-texto-secundaria);
    font-size: 0.875rem;
}

.rodape-texto strong {
    color: var(--cor-primaria);
    font-weight: 600;
}

.rodape-links {
    display: flex;
    gap: 1.5rem;
}

.rodape-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--cor-primaria);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transicao-rapida);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.rodape-link:hover {
    color: var(--cor-primaria-escura);
    background-color: rgba(67, 97, 238, 0.1);
    text-decoration: none;
}

.rodape-icone {
    width: 1rem;
    height: 1rem;
}

@media (max-width: 480px) {
    body {
        padding: 15px;
    }

    .container {
        padding: 1.5rem;
    }

    .titulo-principal {
        font-size: 1.5rem;
    }

    .input-senha {
        font-size: 1rem;
        padding: 0.875rem;
    }

    .rodape {
        margin-top: 1.5rem;
        padding-top: 1rem;
    }

    .rodape-conteudo {
        gap: 0.5rem;
    }

    .rodape-links {
        flex-direction: row;
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .rodape-link {
        font-size: 0.8125rem;
        padding: 0.25rem;
    }

    .rodape-texto {
        text-align: center;
        font-size: 0.8125rem;
    }
}