* {
    box-sizing: border-box;
}

html {
    height: 100%;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    min-height: 100%;
    display: flex;
    flex-direction: column;
}

header {
    background: #4b2c20;
    color: #fff;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

header h1 {
    margin: 0;
    font-size: 1.5em;
}

header nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

header a {
    color: #fff;
    text-decoration: none;
    padding: 5px 10px;
    border-radius: 4px;
    transition: background 0.3s;
}

header a:hover {
    background: rgba(255, 255, 255, 0.1);
}

header span {
    padding: 5px 10px;
}

main {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
    flex: 1;
    width: 100%;
}

footer {
    background: #4b2c20;
    color: #fff;
    text-align: center;
    padding: 15px;
    margin-top: auto;
    width: 100%;
}

/* Produtos */
.produtos {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.produto {
    border: 1px solid #ddd;
    padding: 15px;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.produto:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.produto h3 {
    margin-top: 0;
    color: #4b2c20;
}

.produto form {
    margin-top: 10px;
}

.produto input[type="number"] {
    width: 70px;
    padding: 5px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.produto button {
    background: #4b2c20;
    color: #fff;
    border: none;
    padding: 8px 15px;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 5px;
    width: 100%;
}

.produto button:hover {
    background: #5a3a2d;
}

/* Tabelas */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

table th {
    background: #4b2c20;
    color: #fff;
    padding: 12px;
    text-align: left;
}

table td {
    padding: 10px 12px;
    border-bottom: 1px solid #ddd;
}

table tr:hover {
    background: #f5f5f5;
}

/* Formulários */
form {
    max-width: 500px;
    margin: 20px 0;
}

label {
    display: block;
    margin-top: 10px;
    font-weight: bold;
    color: #333;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1em;
}

input[type="radio"],
input[type="checkbox"] {
    width: auto;
    margin-right: 5px;
}

button[type="submit"],
.btn {
    background: #4b2c20;
    color: #fff;
    border: none;
    padding: 12px 24px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1em;
    margin-top: 15px;
    transition: background 0.3s;
}

button[type="submit"]:hover,
.btn:hover {
    background: #5a3a2d;
}

a.btn {
    display: inline-block;
    text-decoration: none;
}

/* Mensagens */
.erro {
    background: #f8d7da;
    color: #721c24;
    padding: 12px;
    border-radius: 4px;
    margin: 15px 0;
    border: 1px solid #f5c6cb;
}

.sucesso {
    background: #d4edda;
    color: #155724;
    padding: 12px;
    border-radius: 4px;
    margin: 15px 0;
    border: 1px solid #c3e6cb;
}

.card.sucesso {
    background: #d4edda;
    border-color: #c3e6cb;
}

/* Cards */
.card {
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Links */
a {
    color: #4b2c20;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Classes auxiliares */
.text-right {
    text-align: right;
}

.actions {
    margin-top: 20px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn-primary {
    background: #4CAF50;
}

.btn-primary:hover {
    background: #45a049;
}

.btn-secondary {
    background: #6c757d;
    color: #fff;
}

.btn-secondary:hover {
    background: #5a6268;
    color: #fff;
}

.form-inline {
    display: flex;
    gap: 5px;
    align-items: center;
}

.input-quantidade {
    width: 70px !important;
    padding: 5px !important;
}

.btn-small {
    padding: 5px 10px !important;
    font-size: 0.9em !important;
}

.btn-remover {
    color: #dc3545;
}

.btn-remover:hover {
    color: #c82333;
    text-decoration: underline;
}

.enderecos {
    margin: 15px 0;
}

.endereco-card {
    margin: 10px 0;
    padding: 15px;
    border: 2px solid #ddd;
    border-radius: 8px;
    background: #fff;
    transition: border-color 0.3s;
}

.endereco-card:hover {
    border-color: #4b2c20;
}

.endereco-card label {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
    margin: 0;
}

.endereco-card input[type="radio"] {
    margin-right: 10px;
    margin-top: 3px;
}

.endereco-info {
    flex: 1;
}

.pagamento-opcoes {
    margin: 15px 0;
}

.radio-label {
    display: block;
    padding: 10px;
    margin: 5px 0;
    border: 1px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s;
}

.radio-label:hover {
    background: #f5f5f5;
}

.radio-label input[type="radio"] {
    margin-right: 8px;
}

/* Responsividade Mobile */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        align-items: flex-start;
        padding: 15px;
    }
    
    header h1 {
        margin-bottom: 10px;
        font-size: 1.3em;
    }
    
    header nav {
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    header a {
        display: block;
        width: 100%;
        padding: 8px;
        margin: 2px 0;
    }
    
    header span {
        display: block;
        width: 100%;
        padding: 8px;
        margin: 2px 0;
    }
    
    main {
        padding: 15px;
    }
    
    .produtos {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .produto {
        width: 100%;
    }
    
    /* Tabelas responsivas */
    table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    table thead {
        display: none;
    }
    
    table tbody {
        display: block;
    }
    
    table tr {
        display: block;
        margin-bottom: 15px;
        border: 1px solid #ddd;
        border-radius: 8px;
        padding: 10px;
        background: #fff;
    }
    
    table td {
        display: block;
        text-align: right;
        padding: 8px;
        border-bottom: 1px solid #eee;
    }
    
    table td:before {
        content: attr(data-label);
        float: left;
        font-weight: bold;
        color: #4b2c20;
    }
    
    table td:last-child {
        border-bottom: none;
    }
    
    /* Formulários mobile */
    form {
        max-width: 100%;
    }
    
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    textarea,
    select {
        font-size: 16px; /* Evita zoom no iOS */
    }
    
    button[type="submit"],
    .btn {
        width: 100%;
        padding: 15px;
    }
    
    /* Cards mobile */
    .card {
        padding: 15px;
        margin: 15px 0;
    }
    
    /* Actions mobile */
    .actions {
        flex-direction: column;
    }
    
    .actions .btn {
        width: 100%;
        margin: 5px 0;
    }
    
    /* Form inline mobile */
    .form-inline {
        flex-direction: column;
        align-items: stretch;
    }
    
    .input-quantidade {
        width: 100% !important;
        margin-bottom: 5px;
    }
    
    .btn-small {
        width: 100%;
    }
    
    /* Endereços mobile */
    .endereco-card {
        padding: 12px;
    }
    
    .endereco-card label {
        flex-direction: column;
    }
    
    .endereco-card input[type="radio"] {
        margin-bottom: 10px;
    }
    
    /* Pagamento mobile */
    .pagamento-opcoes {
        margin: 10px 0;
    }
    
    .radio-label {
        padding: 12px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.2em;
    }
    
    main {
        padding: 10px;
    }
    
    .produtos {
        gap: 10px;
    }
    
    .produto {
        padding: 12px;
    }
    
    table tr {
        padding: 8px;
    }
    
    table td {
        padding: 6px;
        font-size: 0.9em;
    }
}