:root {
    /* IACIT Colors (Light Theme Base) */
    --brand-primary: #17284b; /* IACIT Navy Blue */
    --brand-secondary: #007bb5; /* Light Accent Blue */
    
    --bg-body: #f4f7f9;
    --bg-card: #ffffff;
    --bg-header: #ffffff;
    
    --text-main: #1e293b;
    --text-muted: #64748b;
    --text-inverse: #ffffff;
    
    --border-color: #e2e8f0;
    --border-input: #cbd5e1;
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    
    --status-good-bg: #dcfce7;
    --status-good-text: #166534;
    --status-good-border: #22c55e;
    
    --status-warn-bg: #fef9c3;
    --status-warn-text: #854d0e;
    --status-warn-border: #eab308;
    
    --status-bad-bg: #fee2e2;
    --status-bad-text: #991b1b;
    --status-bad-border: #ef4444;

    --badge-info-bg: #e0f2fe;
    --badge-info-text: #0369a1;

    --badge-treino: #e2e8f0;
    --badge-treino-text: #334155;
    --badge-val: #dbeafe;
    --badge-val-text: #1d4ed8;
    --badge-teste: #f3e8ff;
    --badge-teste-text: #7e22ce;

    --chart-line: #cbd5e1;
}

[data-theme="dark"] {
    /* Dark Theme */
    --bg-body: #0b1325;
    --bg-card: #142036;
    --bg-header: #0f182c;
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    
    --border-color: #1e325c;
    --border-input: #334155;
    
    --brand-primary: #3da8f5; /* Lighter blue for dark mode accents */
    
    --shadow-md: 0 4px 12px rgba(0,0,0,0.3);

    --status-good-bg: rgba(34, 197, 94, 0.15);
    --status-good-text: #4ade80;
    --status-warn-bg: rgba(234, 179, 8, 0.15);
    --status-warn-text: #fde047;
    --status-bad-bg: rgba(239, 68, 68, 0.15);
    --status-bad-text: #f87171;

    --badge-info-bg: rgba(3, 105, 161, 0.2);
    --badge-info-text: #7dd3fc;

    --badge-treino: rgba(148, 163, 184, 0.2);
    --badge-treino-text: #cbd5e1;
    --badge-val: rgba(59, 130, 246, 0.2);
    --badge-val-text: #93c5fd;
    --badge-teste: rgba(168, 85, 247, 0.2);
    --badge-teste-text: #d8b4fe;

    --chart-line: #334155;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    transition: background-color 0.3s, color 0.3s;
    line-height: 1.5;
}

/* Header */
.app-header {
    background-color: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand { display: flex; align-items: center; gap: 0.75rem; }
.brand-icon { color: var(--brand-secondary); }
[data-theme="dark"] .brand-icon { color: var(--brand-primary); }

.brand h1 { font-size: 1.4rem; font-weight: 700; color: var(--text-main); }
[data-theme="light"] .brand h1 { color: var(--brand-primary); }

.theme-toggle {
    background: none; border: 1px solid var(--border-color);
    color: var(--text-muted); cursor: pointer;
    font-size: 0.9rem; font-family: inherit; font-weight: 500;
    padding: 0.5rem 1rem; border-radius: 20px;
    display: flex; align-items: center; gap: 0.5rem; transition: 0.2s;
}
.theme-toggle:hover { background-color: var(--badge-treino); color: var(--text-main); }

/* Layout / Containers */
.container { max-width: 1400px; margin: 2rem auto; padding: 0 1rem; }

.dashboard-grid { margin-bottom: 2rem; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); gap: 1.5rem; margin-bottom: 2rem; }

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px; padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: background-color 0.3s, border-color 0.3s;
}
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.card-title { font-size: 1.1rem; font-weight: 600; color: var(--text-main); }
.text-muted { color: var(--text-muted); font-size: 0.85rem; }

.section-title { font-size: 1.25rem; font-weight: 700; margin: 2.5rem 0 1rem; color: var(--text-main); border-bottom: 2px solid var(--border-color); padding-bottom: 0.5rem; }

/* Upload Section */
.upload-section { text-align: center; border: 2px dashed var(--brand-secondary); cursor: pointer; padding: 2.5rem; transition: 0.2s; }
.upload-section:hover { background-color: var(--badge-info-bg); }
.upload-section label { display: flex; flex-direction: column; align-items: center; gap: 1rem; cursor: pointer; }
.upload-icon { color: var(--brand-secondary); }
.upload-section span { font-weight: 600; font-size: 1.1rem; color: var(--text-main); }
.upload-section input { display: none; }

/* Controls */
.controls-card { 
    display: flex; flex-wrap: wrap; gap: 1.5rem; align-items: flex-end; 
    position: sticky; top: 76px; z-index: 90;
}
.nav-group { display: flex; gap: 0.8rem; flex: 1; min-width: 300px; align-items: center; }
.filter-group { display: flex; gap: 1rem; flex-wrap: wrap; }

.filter-item { display: flex; flex-direction: column; gap: 0.4rem; }
.filter-item label { font-size: 0.8rem; font-weight: 600; text-transform: uppercase; color: var(--text-muted); letter-spacing: 0.5px; }

.form-select {
    padding: 0.6rem 2rem 0.6rem 1rem;
    border: 1px solid var(--border-input); border-radius: 6px;
    background-color: var(--bg-card); color: var(--text-main);
    font-family: inherit; font-size: 0.95rem; cursor: pointer; outline: none;
    appearance: none; -webkit-appearance: none;
    background-image: url('data:image/svg+xml;utf8,<svg fill="%2364748b" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M7 10l5 5 5-5z"/></svg>');
    background-repeat: no-repeat; background-position: right 0.6rem center; background-size: 1.2rem;
}
.form-select:focus { border-color: var(--brand-secondary); box-shadow: 0 0 0 3px rgba(0, 123, 181, 0.15); }

.flex-grow { flex: 1; }

.btn { padding: 0.6rem 1.2rem; border-radius: 6px; font-weight: 600; font-family: inherit; font-size: 0.95rem; cursor: pointer; transition: 0.2s; border: none; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary { background-color: var(--brand-secondary); color: #fff; }
.btn-primary:hover:not(:disabled) { background-color: #005f8c; }
[data-theme="dark"] .btn-primary { background-color: var(--brand-primary); color: #000; }
[data-theme="dark"] .btn-primary:hover:not(:disabled) { background-color: #60bbfc; }

.btn-outline { background-color: transparent; border: 1px solid var(--border-input); color: var(--text-main); }
.btn-outline:hover:not(:disabled) { background-color: var(--badge-treino); }

/* Score Board */
.score-board { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.5rem; margin-bottom: 2rem; }
.score-card { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 2rem; }
.score-title { font-size: 1rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; margin-bottom: 1.5rem; }

.score-circle {
    width: 120px; height: 120px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 2.2rem; font-weight: 700;
    border: 6px solid var(--border-color); position: relative;
}
.score-delta {
    position: absolute; bottom: -12px; background-color: var(--bg-card);
    padding: 0.2rem 0.8rem; border-radius: 12px; font-size: 0.85rem; font-weight: 600;
    border: 1px solid var(--border-color);
}

.score-good { border-color: var(--status-good-border); color: var(--status-good-text); }
.score-warn { border-color: var(--status-warn-border); color: var(--status-warn-text); }
.score-bad { border-color: var(--status-bad-border); color: var(--status-bad-text); }
.delta-up { color: var(--status-good-text); }
.delta-down { color: var(--status-bad-text); }
.delta-neutral { color: var(--text-muted); }

/* Charts */
.evolution-wrapper { height: 350px; width: 100%; }
.chart-wrapper { position: relative; height: 280px; width: 100%; }

/* Grid Params */
.params-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 0.8rem; }
.param-card { background: var(--bg-body); padding: 0.8rem 1rem; border-radius: 6px; border: 1px solid var(--border-color); }
.param-changed { border-color: var(--status-warn-border); background-color: var(--status-warn-bg); }
.param-label { font-size: 0.75rem; color: var(--text-muted); font-family: monospace; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-bottom: 0.3rem; }
.param-value { font-size: 1.1rem; font-weight: 700; color: var(--text-main); }
.changed-icon { color: var(--status-warn-text); float: right; font-weight: bold; font-size: 0.7rem; }

/* Badges */
.badge { padding: 0.25rem 0.5rem; border-radius: 4px; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.badge-info { background-color: var(--badge-info-bg); color: var(--badge-info-text); border: 1px solid var(--brand-secondary); }

.badge.bom { background-color: var(--status-good-bg); color: var(--status-good-text); border: 1px solid var(--status-good-border); }
.badge.alerta { background-color: var(--status-warn-bg); color: var(--status-warn-text); border: 1px solid var(--status-warn-border); }
.badge.ruim { background-color: var(--status-bad-bg); color: var(--status-bad-text); border: 1px solid var(--status-bad-border); }

.badge-conjunto { padding: 0.2rem 0.5rem; border-radius: 4px; font-size: 0.7rem; font-weight: 700; border: 1px solid transparent; }
.badge-treino { background-color: var(--badge-treino); color: var(--badge-treino-text); border-color: var(--border-color); }
.badge-validacao { background-color: var(--badge-val); color: var(--badge-val-text); border-color: var(--brand-secondary); }
.badge-teste { background-color: var(--badge-teste); color: var(--badge-teste-text); border-color: #9333ea; }

/* Tables */
.table-card { overflow-x: auto; background: var(--bg-card); border-radius: 8px; border: 1px solid var(--border-color); margin-bottom: 2rem; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.data-table th, .data-table td { padding: 1rem; text-align: left; border-bottom: 1px solid var(--border-color); }
.data-table th { background-color: var(--bg-body); font-weight: 600; color: var(--text-muted); text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.5px; white-space: nowrap; }
.data-table th.sortable { cursor: pointer; }
.data-table th.sortable:hover { background-color: var(--badge-treino); color: var(--text-main); }
.data-table tr:hover { background-color: var(--bg-body); }
.sort-icon { font-size: 0.75rem; margin-left: 4px; color: var(--text-muted); }
.sort-active { color: var(--brand-secondary); font-weight: bold; }

/* Confusion Matrix */
.cm-grid { display: grid; grid-template-columns: auto 1fr 1fr; grid-template-rows: auto 1fr 1fr; gap: 8px; width: 100%; height: 100%; text-align: center; padding: 4px; }
.cm-cell { border-radius: 6px; display: flex; flex-direction: column; justify-content: center; font-size: 1.4rem; font-weight: 700; border: 1px solid var(--border-color); }
.cm-header { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; font-weight: 600; display: flex; align-items: center; justify-content: center; }
.cm-label { font-size: 0.65rem; font-weight: 500; opacity: 0.8; margin-bottom: 2px; }

.cm-tp { background-color: var(--status-good-bg); color: var(--status-good-text); border-color: var(--status-good-border); }
.cm-tn { background-color: var(--bg-body); color: var(--text-main); }
.cm-fp { background-color: var(--status-bad-bg); color: var(--status-bad-text); border-color: var(--status-bad-border); }
.cm-fn { background-color: var(--status-warn-bg); color: var(--status-warn-text); border-color: var(--status-warn-border); }

/* Helpers */
.empty-state { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; color: var(--text-muted); font-size: 0.9rem; padding: 2rem; border: 1px dashed var(--border-input); border-radius: 8px; background-color: var(--bg-body); }
.ratio-bar-container { width: 100%; background-color: var(--border-color); height: 6px; border-radius: 4px; margin-top: 4px; overflow: hidden; }
.ratio-bar { height: 100%; border-radius: 4px; transition: width 0.3s; }