:root {
    --primary-color:   #3E6B32;
    --secondary-color: #253D1F;
    --accent-color:    #C9973A;
    --danger-color:    #C0392B;
    --text-dark:       #141F11;
    --bg-light:        #FAF8F2;
    --white:           #ffffff;
    --border-radius:   8px;
    --color-palha:     #F0E9D6;
    --color-musgo:     #7A9E6E;
    --color-terra:     #8B6914;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    margin: 0;
    padding: 20px;
    line-height: 1.6;
}

h1, h2, h3 { color: var(--text-dark); margin-bottom: 15px; }
h1 { text-align: center; border-bottom: 2px solid var(--primary-color); padding-bottom: 10px; display: inline-block; width: 100%; }

a { text-decoration: none; transition: 0.3s; }

button, .btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: bold;
    font-size: 14px;
    text-align: center;
    display: inline-block;
    margin-top: 10px;
    margin-bottom: 5px;
    background-color: #555;
    color: var(--white);
}

button:hover, .btn:hover { opacity: 0.9; transform: translateY(-1px); }

.btn-primary   { background-color: var(--primary-color) !important; }
.btn-danger    { background-color: var(--danger-color) !important; }
.btn-warning   { background-color: var(--accent-color) !important; }
.btn-info      { background-color: #0288d1 !important; }
.btn-secondary { background-color: #757575 !important; }

form {
    background: var(--white);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    max-width: 600px;
    margin: 20px auto;
}

label { display: block; margin-top: 15px; font-weight: 600; color: var(--color-musgo); }

input[type="text"], input[type="number"], input[type="date"], select, textarea {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    border: 1px solid var(--color-terra);
    border-radius: 4px;
    box-sizing: border-box;
}

input:focus { border-color: var(--primary-color); outline: none; }

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    margin-top: 20px;
}

th { background-color: var(--secondary-color); color: var(--white); padding: 12px; text-align: left; }
td { padding: 12px; border-bottom: 1px solid var(--color-palha); }
tr:hover { background-color: #EEF4EB; }

.dashboard, .grid-box {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 30px;
}

.card, .kpi-box {
    background: var(--white);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    flex: 1;
    min-width: 200px;
    text-align: center;
}

.alert {
    padding: 15px;
    background-color: #d4edda;
    color: #155724;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    text-align: center;
}

.tag-ativo   { background: #D6E8D0; color: var(--primary-color); padding: 5px 10px; border-radius: 15px; font-size: 0.8em; font-weight: bold; }
.tag-vendido { background: #FDDCDA; color: var(--danger-color);  padding: 5px 10px; border-radius: 15px; font-size: 0.8em; font-weight: bold; }

.form-container {
    background: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    max-width: 800px;
    margin: 20px auto;
}

.radio-group {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    padding: 15px;
    background: var(--color-palha);
    border: 1px solid var(--color-terra);
    border-radius: var(--border-radius);
}

.radio-group label {
    margin-top: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: bold;
    color: var(--primary-color);
}

.card-cotacao {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 15px 25px;
    border-radius: 12px;
    margin: 20px 0;
    box-shadow: 0 4px 15px rgba(62, 107, 50, 0.3);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.cotacao-header { display: flex; align-items: center; gap: 15px; }
.icone-boi { font-size: 2.5rem; background: rgba(255,255,255,0.2); padding: 5px; border-radius: 50%; }
.cotacao-header h3 { margin: 0; color: white; font-size: 1.2rem; border: none; }
.cotacao-header small { color: rgba(255,255,255,0.8); font-size: 0.8rem; }

.cotacao-valores {
    display: flex;
    align-items: center;
    gap: 30px;
    background: rgba(0,0,0,0.1);
    padding: 10px 20px;
    border-radius: 8px;
}

.valor-item { text-align: right; }
.valor-item .label { display: block; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 1px; opacity: 0.9; }
.valor-item .preco { display: block; font-size: 1.5rem; font-weight: bold; color: var(--accent-color); }

.separador-vertical { width: 1px; height: 30px; background-color: rgba(255,255,255,0.3); }

@media (max-width: 600px) {
    .card-cotacao { flex-direction: column; text-align: center; }
    .cotacao-valores { width: 100%; justify-content: space-around; }
    .separador-vertical { display: none; }
}
.btn-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-loading::after {
    content: "";
    position: absolute;
    width: 18px;
    height: 18px;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spinner 0.8s linear infinite;
}

@keyframes spinner {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}