/* Definição de Variáveis CSS */
:root {
    --cor-primaria: #00796B; /* Teal escuro */
    --cor-secundaria: #009688; /* Teal */
    --cor-destaque: #FF5722; /* Laranja */
    --cor-fundo: #FAFAFA; /* Branco acinzentado */
    --cor-borda: #E0E0E0;
    --cor-geogebra-bg: #F5F5F5; /* Fundo do Canvas */
    --cor-geogebra-grid: #DCDCDC;
    --cor-geogebra-eixos: #9E9E9E;
    --cor-ponto-ativo: #FF5722;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--cor-fundo);
    color: #333;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden; 
}

/* --- HEADER PRINCIPAL --- */
.top-bar {
    background-color: var(--cor-primaria);
    color: white;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.logo-link {
    color: white;
    text-decoration: none;
    font-size: 1.5em;
    font-weight: bold;
    margin-right: 20px;
}

/* --- LAYOUT PRINCIPAL --- */
.main-container-simplified {
    display: flex;
    flex-direction: column;
    flex-grow: 1; 
    position: relative;
}

/* --- HEADER DE FERRAMENTAS (#tool-header) --- */
#tool-header {
    background-color: white;
    border-bottom: 1px solid var(--cor-borda);
    padding: 10px 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap; 
    gap: 10px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.tool-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.tool-button {
    background-color: var(--cor-fundo);
    color: #555;
    border: 1px solid var(--cor-borda);
    padding: 8px 15px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
}

.tool-button:hover {
    background-color: #EEE;
    border-color: #CCC;
}

.tool-button.active-mode {
    background-color: var(--cor-secundaria);
    color: white;
    border-color: var(--cor-secundaria);
}

.tool-button.action-button {
    /* Cor do botão de Ação (Mostrar Cálculo/Limpar) */
    color: white;
    border-color: transparent;
}

.tool-button.action-button:hover {
    filter: brightness(1.1);
}

.tool-input {
    padding: 8px;
    border: 1px solid var(--cor-borda);
    border-radius: 4px;
    min-width: 80px;
}

/* --- RESULTADOS --- */
.result-display {
    padding: 5px 10px;
    background-color: #F0F0F0;
    border-radius: 4px;
    font-size: 0.9em;
    font-weight: 600;
    color: var(--cor-secundaria);
}

.result-display i {
    color: #555;
    margin-right: 5px;
}

.area-result, .perimeter-result {
    color: var(--cor-destaque);
}


/* --- CONTEÚDO PRINCIPAL E CANVAS --- */
.main-content {
    flex-grow: 1;
    position: relative;
    overflow: hidden; 
}

#geometryCanvas {
    width: 100%;
    height: 100%;
    display: block;
    cursor: grab;
}

/* --- MINI-CALCULADORA --- */
#mini-calculator {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    width: 250px;
}

#mini-calculator h4 {
    margin-top: 0;
    margin-bottom: 10px;
    color: var(--cor-primaria);
    font-size: 1em;
}

.calc-input label {
    display: block;
    font-size: 0.9em;
    margin-bottom: 5px;
}

.calc-input input {
    width: 100%;
    box-sizing: border-box;
    padding: 6px;
    margin-bottom: 10px;
    border: 1px solid var(--cor-borda);
    border-radius: 4px;
}

.calc-result {
    background-color: #E0F2F1;
    padding: 8px;
    border-radius: 4px;
    font-size: 0.95em;
    font-weight: 600;
    color: #333;
}

/* --- MODALS --- */

.modal {
    display: none; 
    position: fixed; 
    z-index: 10; 
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto; 
    background-color: rgba(0,0,0,0.4); 
}

.modal-content {
    background-color: #fefefe;
    margin: 10% auto; 
    padding: 25px;
    border: 1px solid #888;
    width: 80%; 
    max-width: 600px;
    border-radius: 8px;
    position: relative;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.close-button {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close-button:hover,
.close-button:focus {
    color: #000;
    text-decoration: none;
    cursor: pointer;
}

#calculation-details h5, #label-inputs label {
    color: var(--cor-primaria);
    margin-top: 15px;
}

#calculation-details p {
    font-size: 0.9em;
    margin: 5px 0;
}

#calculation-details hr {
    border-top: 1px solid var(--cor-borda);
    margin: 15px 0;
}

.side-input {
    width: 98%;
    box-sizing: border-box;
    padding: 8px;
    border: 1px solid var(--cor-borda);
    border-radius: 4px;
}