/* -------------------------------------------
   1. Variáveis e Reset Básico
   ------------------------------------------- */
:root {
    --bg-dark: #1a202c;
    --panel-dark: #2d3748;
    --text-light: #edf2f7;
    --border-color: #4a5568;
    --shadow-dark: 0 10px 30px rgba(0,0,0,0.5);

    --primary-color: #3182ce;
    --primary-hover: #2b6cb0;

    --success-color: #28a745;
    --success-hover: #218838;

    --danger-color: #e53e3e;
    --danger-hover: #c53030;
    
    --info-color: #2b6cb0; /* Azul mais escuro para consistência */
    --info-hover: #2a4365;

    --button-neutral-bg: #4a5568;
    --button-neutral-hover: #5a6b86;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: var(--text-light);
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 20px;
}

/* -------------------------------------------
   2. Cabeçalho (Header)
   ------------------------------------------- */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 25px;
    background-color: var(--panel-dark);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    margin-bottom: 30px;
}

.logo-container {
    display: flex;
    align-items: center;
}

header img {
    width: 50px;
    height: 50px;
    margin-right: 20px;
}

header h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.header-actions {
    display: flex;
    gap: 15px;
}

/* -------------------------------------------
   3. Conteúdo Principal (Layout de Colunas)
   ------------------------------------------- */
.main-content {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.card {
    background-color: var(--panel-dark);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.card h2, .card h3 {
    color: var(--text-light);
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-color);
}

.main-content .card:nth-child(1) {
    flex: 1; 
    min-width: 400px;
}
.main-content .card:nth-child(2) {
    flex: 2;
    min-width: 500px;
}

/* -------------------------------------------
   4. Formulários e Inputs
   ------------------------------------------- */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: #a0aec0;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--bg-dark);
    color: var(--text-light);
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(49, 130, 206, 0.3);
    outline: none;
}

input[readonly] {
    background-color: #4a5568;
    cursor: not-allowed;
}

/* -------------------------------------------
   5. Botões (Estilo Unificado)
   ------------------------------------------- */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    text-decoration: none;
    color: white;
    text-align: center;
    display: inline-block;
    line-height: 1.5;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.btn:active {
    transform: translateY(0);
    box-shadow: none;
}

.btn-success { background-color: var(--success-color); }
.btn-success:hover { background-color: var(--success-hover); }

.btn-info { background-color: var(--info-color); }
.btn-info:hover { background-color: var(--info-hover); }

.btn-danger { background-color: var(--danger-color); }
.btn-danger:hover { background-color: var(--danger-hover); }

.btn-logout { background-color: var(--danger-color); }
.btn-logout:hover { background-color: var(--danger-hover); }

.btn-back { background-color: var(--button-neutral-bg); }
.btn-back:hover { background-color: var(--button-neutral-hover); }


/* -------------------------------------------
   6. Tabelas
   ------------------------------------------- */
#selected-items-table, #cautelas-ativas-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

#selected-items-table th, #selected-items-table td,
#cautelas-ativas-table th, #cautelas-ativas-table td {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}

#selected-items-table th, #cautelas-ativas-table th {
    background-color: #3e4c62;
    color: var(--text-light);
    font-weight: 600;
}

#selected-items-table tbody tr:hover, 
#cautelas-ativas-table tbody tr:hover {
    background-color: #384357;
}

/* -------------------------------------------
   7. Modais
   ------------------------------------------- */
.modal {
    display: none; 
    position: fixed; 
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.7);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--panel-dark);
    margin: 10% auto;
    padding: 30px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 80%;
    max-width: 700px; /* Aumentado para comportar melhor a grade */
    box-shadow: var(--shadow-dark);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 15px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 { margin: 0; }

.close {
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}
.close:hover, .close:focus { color: white; }

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

/* -------------------------------------------
   8. Grid de Seleção de Materiais
   ------------------------------------------- */
.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 15px;
    padding: 1.5rem 0;
}

/* CORREÇÃO APLICADA AQUI: de .material-button para .btn-material */
.btn-material {
    all: unset; /* Reset crucial */
    box-sizing: border-box;
    background-color: var(--button-neutral-bg);
    color: var(--text-light);
    border-radius: 8px;
    padding: 12px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    border: 2px solid transparent;
}

.btn-material:hover {
    background-color: var(--button-neutral-hover);
    transform: scale(1.05);
}

.btn-material.selected {
    background-color: var(--primary-color);
    color: white;
    border-color: #63b3ed;
    transform: scale(1);
}
.btn-material.selected:hover {
    background-color: var(--primary-hover);
}

#finalizar-material-btn {
    width: auto;
    margin-left: auto;
    margin-right: 0;
    display: block;
}