:root {
    --cor-primaria: #741537;
    --cor-secundaria: #cd964e;
    --cor-primaria-escura: #5a1029;
    --cor-secundaria-clara: #dbb580;
    --cor-fundo: #faf7f4;
    --cor-texto: #333;
}

body {
    background-color: var(--cor-fundo);
    color: var(--cor-texto);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Header */
.header-marca {
    background: var(--cor-primaria);
    padding: 15px 0;
}
.header-marca h1 {
    color: var(--cor-secundaria);
    font-size: 1.4rem;
    margin: 0;
    font-weight: 700;
    letter-spacing: 1px;
}
.header-marca small {
    color: rgba(255,255,255,0.7);
    font-size: 0.8rem;
}

/* Capa do livro */
.capa-container {
    text-align: center;
    padding: 30px 0;
}
.capa-container img {
    max-width: 280px;
    border-radius: 8px;
    box-shadow: 0 8px 30px rgba(116, 21, 55, 0.3);
    transition: transform 0.3s;
}
.capa-container img:hover {
    transform: scale(1.03);
}

/* Info livro */
.livro-info h2 {
    color: var(--cor-primaria);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 5px;
}
.livro-info .autor {
    color: var(--cor-secundaria);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 3px;
}
.livro-info .editora {
    color: #888;
    font-size: 0.9rem;
    margin-bottom: 15px;
}
.livro-info .preco {
    font-size: 2rem;
    font-weight: 700;
    color: var(--cor-primaria);
}
.livro-info .preco small {
    font-size: 0.9rem;
    color: #888;
    font-weight: 400;
}
.livro-info .parcelas {
    color: var(--cor-secundaria);
    font-size: 1rem;
    font-weight: 600;
}
.livro-info .descricao {
    color: #555;
    font-size: 0.95rem;
    line-height: 1.7;
    margin-top: 15px;
}
.livro-info .detalhes-fisicos {
    font-size: 0.85rem;
    color: #888;
}

/* Stepper */
.stepper {
    display: flex;
    justify-content: center;
    margin: 30px 0;
    padding: 0;
    list-style: none;
}
.stepper li {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    color: #aaa;
    font-weight: 600;
}
.stepper li .step-circle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #ddd;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 700;
    margin-right: 8px;
    transition: all 0.3s;
}
.stepper li.active .step-circle {
    background: var(--cor-primaria);
}
.stepper li.completed .step-circle {
    background: var(--cor-secundaria);
}
.stepper li.active, .stepper li.completed {
    color: var(--cor-primaria);
}
.stepper li .step-line {
    width: 60px;
    height: 2px;
    background: #ddd;
    margin: 0 12px;
}
.stepper li.completed .step-line {
    background: var(--cor-secundaria);
}

/* Cards de form */
.form-card {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
    margin-bottom: 20px;
}
.form-card h4 {
    color: var(--cor-primaria);
    font-weight: 700;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--cor-secundaria);
}

/* Botões */
.btn-primario {
    background: var(--cor-primaria);
    color: #fff;
    border: none;
    padding: 12px 40px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s;
}
.btn-primario:hover {
    background: var(--cor-primaria-escura);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(116, 21, 55, 0.3);
}
.btn-primario:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}
.btn-secundario {
    background: var(--cor-secundaria);
    color: #fff;
    border: none;
    padding: 12px 40px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s;
}
.btn-secundario:hover {
    background: #b8833f;
    color: #fff;
}
.btn-outline-voltar {
    border: 2px solid var(--cor-primaria);
    color: var(--cor-primaria);
    background: transparent;
    padding: 10px 30px;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s;
}
.btn-outline-voltar:hover {
    background: var(--cor-primaria);
    color: #fff;
}

/* Opções de frete */
.frete-opcao {
    border: 2px solid #eee;
    border-radius: 10px;
    padding: 15px;
    cursor: pointer;
    transition: all 0.3s;
    margin-bottom: 10px;
}
.frete-opcao:hover,
.frete-opcao.selected {
    border-color: var(--cor-primaria);
    background: rgba(116, 21, 55, 0.03);
}
.frete-opcao .frete-nome {
    font-weight: 700;
    color: var(--cor-primaria);
}
.frete-opcao .frete-preco {
    font-weight: 700;
    color: var(--cor-secundaria);
    font-size: 1.1rem;
}
.frete-opcao .frete-prazo {
    font-size: 0.85rem;
    color: #888;
}

/* Resumo */
.resumo-box {
    background: linear-gradient(135deg, var(--cor-primaria), var(--cor-primaria-escura));
    border-radius: 12px;
    padding: 20px;
    color: #fff;
}
.resumo-box .resumo-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 0.95rem;
}
.resumo-box .resumo-total {
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: 12px;
    margin-top: 8px;
    font-size: 1.3rem;
    font-weight: 700;
}
.resumo-box .resumo-total .valor-total {
    color: var(--cor-secundaria);
}

/* Abas de pagamento */
.payment-tabs .nav-link {
    color: var(--cor-primaria);
    font-weight: 600;
    border: 2px solid transparent;
    border-radius: 8px 8px 0 0;
    padding: 12px 30px;
}
.payment-tabs .nav-link.active {
    color: #fff;
    background: var(--cor-primaria);
    border-color: var(--cor-primaria);
}
.payment-tabs .nav-link:hover:not(.active) {
    border-color: var(--cor-secundaria);
}

/* PIX */
.pix-container {
    text-align: center;
    padding: 20px;
}
.pix-container .qrcode-img {
    max-width: 250px;
    border: 3px solid var(--cor-primaria);
    border-radius: 12px;
    padding: 10px;
    background: #fff;
}
.pix-payload {
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 12px;
    font-family: monospace;
    font-size: 0.8rem;
    word-break: break-all;
    cursor: pointer;
    position: relative;
}
.pix-payload:hover {
    background: #eee;
}
.btn-copiar {
    background: var(--cor-secundaria);
    color: #fff;
    border: none;
    padding: 8px 20px;
    border-radius: 6px;
    font-weight: 600;
    margin-top: 10px;
}

/* Tela de sucesso */
.sucesso-container {
    text-align: center;
    padding: 40px 20px;
}
.sucesso-container .icone-sucesso {
    font-size: 80px;
    color: #28a745;
    margin-bottom: 20px;
}
.sucesso-container h3 {
    color: var(--cor-primaria);
    font-weight: 700;
}

/* Loading overlay */
.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}
.loading-overlay.show {
    display: flex;
}
.loading-overlay .spinner-border {
    width: 3rem;
    height: 3rem;
    color: var(--cor-secundaria);
}

/* Footer */
.footer {
    background: var(--cor-primaria);
    color: rgba(255,255,255,0.6);
    padding: 20px 0;
    text-align: center;
    font-size: 0.85rem;
    margin-top: 40px;
}

/* Responsivo */
@media (max-width: 768px) {
    .capa-container img {
        max-width: 200px;
    }
    .livro-info h2 {
        font-size: 1.5rem;
    }
    .livro-info .preco {
        font-size: 1.6rem;
    }
    .stepper li .step-line {
        width: 30px;
        margin: 0 6px;
    }
    .stepper li span.d-none {
        display: none !important;
    }
    .form-card {
        padding: 20px;
    }
    .quantidade-selector {
        justify-content: center;
    }
}

/* Seletor de Quantidade */
.quantidade-selector {
    margin-top: 18px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}
.quantidade-selector .qty-label {
    font-weight: 600;
    font-size: 1rem;
    color: var(--cor-texto);
    margin: 0;
}
.qty-wrapper {
    display: inline-flex;
    align-items: center;
    background: #fff;
    border: 2px solid var(--cor-primaria);
    border-radius: 50px;
    padding: 4px 6px;
    box-shadow: 0 2px 8px rgba(116, 21, 55, 0.10);
}
.btn-qty {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: none;
    background: var(--cor-primaria);
    color: #fff;
    font-size: 1.1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    line-height: 1;
    padding: 0;
    position: relative;
}
.btn-qty i,
.btn-qty * {
    pointer-events: none;
}
.btn-qty:hover:not(:disabled) {
    background: var(--cor-primaria-escura);
    transform: scale(1.08);
}
.btn-qty:active:not(:disabled) {
    transform: scale(0.95);
}
.btn-qty:disabled {
    background: #d5d5d5;
    color: #fff;
    cursor: not-allowed;
}
.qty-display {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--cor-primaria);
    min-width: 44px;
    text-align: center;
    display: inline-block;
    user-select: none;
}