/* ==========================================
   VARIABLES Y RESET
   ========================================== */
:root {
    --bg-color: #f4f7f6;
    --panel-bg: #ffffff;
    --text-color: #333;
    --text-muted: #6b7280;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --card-bg: #fff;
    --border: #e5e7eb;
    --good: #16a34a;
    --bad: #dc2626;
    --neutral: #6b7280;
    --warning: #d97706;
    --success: #059669;
    --danger: #dc2626;
    --text-main: #111827;
}

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

body {
    font-family: system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.5;
    padding: 20px;
}

.container { max-width: 1200px; margin: 0 auto; }

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 16px;
}

h1 { font-size: 1.5rem; color: #111; }
h2, h3 { color: #111827; }

.controls { display: flex; gap: 10px; flex-wrap: wrap; }

button, .file-upload-label {
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 8px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-weight: 500;
}

button:hover, .file-upload-label:hover { background-color: var(--primary-hover); }
button:disabled { background-color: #9ca3af; cursor: not-allowed; }
button.danger { background-color: #dc2626; }
button.danger:hover { background-color: #b91c1c; }
button.secondary { background-color: #4b5563; }
button.secondary:hover { background-color: #374151; }
.btn-add { background-color: var(--success); color: white; }
.btn-add:hover { background-color: #047857; }
.btn-delete { background-color: var(--danger); color: white; padding: 6px 12px; font-size: 0.85rem; }
.btn-delete:hover { background-color: #b91c1c; }
input[type="file"] { display: none; }

/* Icon Buttons & Tooltips */
.icon-btn {
    font-size: 1.4rem;
    padding: 6px 12px;
    background-color: transparent !important;
    color: var(--text-color) !important;
    border: 1px solid var(--border) !important;
    position: relative;
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}
.icon-btn:hover {
    background-color: var(--border) !important;
}
.icon-btn.danger {
    color: var(--danger) !important;
    border-color: var(--danger) !important;
}
.icon-btn.danger:hover {
    background-color: #fee2e2 !important;
}

.tooltip-container {
    position: relative;
    cursor: pointer;
}
.tooltip-container .tooltip-text {
    visibility: hidden;
    background-color: #111827;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 6px 10px;
    position: absolute;
    z-index: 1000;
    top: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.2s, top 0.2s;
    font-size: 0.8rem;
    white-space: nowrap;
    pointer-events: none;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    font-weight: normal;
}
.tooltip-container .tooltip-text::after {
    content: "";
    position: absolute;
    bottom: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: transparent transparent #111827 transparent;
}
.tooltip-container:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
    top: 135%;
}

/* TABS */
.tabs { display: flex; gap: 4px; margin-bottom: 20px; border-bottom: 2px solid var(--border); }
.tab-btn {
    background: transparent; color: var(--text-muted); border: none;
    font-size: 1.05rem; font-weight: 600; cursor: pointer;
    padding: 10px 20px; border-bottom: 3px solid transparent;
    border-radius: 6px 6px 0 0; transition: all 0.2s;
}
.tab-btn:hover { background: #e5e7eb; color: #111; }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); background: #eff6ff; }
.tab-content { display: none; animation: fadeIn 0.3s ease; }
.tab-content.active { display: block; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* PANEL */
.panel {
    background: var(--panel-bg); padding: 24px; border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1); margin-bottom: 24px;
    border: 1px solid var(--border);
}

.filter-bar {
    background: var(--card-bg); padding: 12px 20px; border-radius: 8px;
    border: 1px solid var(--border); margin-bottom: 24px;
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 16px;
}

.nav-group { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

select { padding: 6px 12px; border-radius: 4px; border: 1px solid var(--border); font-size: 0.95rem; outline: none; }

.view-modes {
    display: flex; align-items: center; gap: 12px; font-size: 0.9rem;
    background: #f9fafb; padding: 6px 12px; border-radius: 6px;
    border: 1px solid var(--border); flex-wrap: wrap;
}

/* STICKY CONTROLS */
.sticky-controls {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--bg-color);
    padding: 6px 0 4px;
    margin-bottom: 16px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.10);
    border-bottom: 1px solid var(--border);
}

.sticky-controls .filter-bar {
    margin-bottom: 6px;
    padding: 8px 14px;
}

.sticky-controls .matrix-card {
    margin-bottom: 0;
    padding: 8px 14px;
}

.sticky-controls .matrix-card h3 {
    font-size: 0.82rem;
    margin-bottom: 6px;
    color: #374151;
}

.sticky-controls .matrix-table {
    font-size: 0.75rem;
}

.sticky-controls .matrix-table th,
.sticky-controls .matrix-table td {
    padding: 3px 5px;
}

/* MATRIX */
.matrix-card { background: var(--card-bg); padding: 16px; border-radius: 8px; border: 1px solid var(--border); margin-bottom: 24px; overflow-x: auto; }
.matrix-card h3 { font-size: 0.9rem; margin-bottom: 12px; color: #4b5563; }
.matrix-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.matrix-table th, .matrix-table td { border: 1px solid var(--border); text-align: center; padding: 6px; }
.matrix-table th { background: #f9fafb; }
.matrix-table th label { display: flex; flex-direction: column; align-items: center; cursor: pointer; gap: 2px; }
.matrix-table td label { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; cursor: pointer; }
.matrix-table input[type="checkbox"] { cursor: pointer; }

/* DIFF Y BARRA */
.diff { font-size: 0.85rem; font-weight: 600; padding: 2px 6px; border-radius: 4px; background: #f3f4f6; display: inline-block; white-space: nowrap; }
.diff.good { color: var(--good); background: #dcfce7; }
.diff.bad { color: var(--bad); background: #fee2e2; }
.diff.neutral { color: var(--neutral); }
.bar-container { width: 100%; background-color: #e5e7eb; border-radius: 4px; height: 6px; margin-top: 4px; overflow: hidden; }
.bar { height: 100%; background-color: var(--primary); border-radius: 4px; transition: width 0.3s ease; }

/* TABLA UNIFICADA */
.tables-wrapper { background: var(--card-bg); border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,0.1); border: 1px solid var(--border); overflow-x: auto; margin-bottom: 30px; }
.tables-wrapper table { width: 100%; border-collapse: collapse; text-align: left; min-width: 800px; }
.tables-wrapper th { background-color: #f9fafb; font-weight: 600; font-size: 0.85rem; color: #4b5563; vertical-align: middle; border-bottom: 2px solid var(--border); padding: 12px 16px; white-space: nowrap; }
.tables-wrapper td { padding: 12px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; white-space: nowrap; }
.tables-wrapper th:first-child, .tables-wrapper td:first-child { white-space: normal; min-width: 200px; max-width: 350px; word-break: break-word; line-height: 1.4; }

.sticky-col { position: sticky; left: 0; background-color: #ffffff; z-index: 10; border-right: 2px solid #e5e7eb; box-shadow: 2px 0 5px rgba(0,0,0,0.02); }
th.sticky-col { background-color: #f9fafb; z-index: 11; }
.sticky-col:hover { z-index: 40; }
th.sticky-col:hover { z-index: 41; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.compare-col { border-left: 1px solid var(--border); background-color: #fafafa; }

/* ACORDEÓN */
.row-header { cursor: pointer; transition: background-color 0.2s; }
.row-header:hover { background-color: #f3f4f6; }
.row-header .sticky-col { transition: background-color 0.2s; }
.row-header:hover .sticky-col { background-color: #f3f4f6; }
.row-detail { display: none; background-color: #f8fafc; }
.row-detail.open { display: table-row; animation: fadeIn 0.3s ease forwards; }

.detail-card { padding: 16px 24px; display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; border-left: 4px solid var(--primary); margin: 8px 16px; background: #fff; border-radius: 6px; box-shadow: 0 1px 2px rgba(0,0,0,0.05); white-space: normal; }
.detail-item { display: flex; flex-direction: column; gap: 8px; }
.detail-item label { font-size: 0.8rem; color: var(--primary); text-transform: uppercase; font-weight: 700; border-bottom: 1px solid #e5e7eb; padding-bottom: 4px; }
.detail-item span { font-size: 1.05rem; color: #111; font-weight: 500; }
.detail-item span.highlight { color: var(--primary); font-weight: bold; }

.detail-row { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 4px; flex-wrap: wrap; gap: 8px; word-break: break-word; }
.detail-row > span { flex: 1 1 120px; font-size: 0.9rem !important; color: #4b5563 !important; font-weight: normal !important; }
.detail-row > strong, .detail-row > .highlight { text-align: right; flex: 0 1 auto; }
.detail-row.dashed { margin-top: 8px; border-top: 1px dashed #e5e7eb; padding-top: 4px; }
.detail-row.dashed-energy { border-top-color: #bfdbfe; }
.detail-row.dashed-warning { border-top-color: #fde68a; }
.detail-row.dashed-summary { border-top-color: #e2e8f0; }

/* SUB-TARJETAS */
.detail-item-box { padding: 12px; border-radius: 6px; }
.detail-item-box.energy { background: #eff6ff; border: 1px solid #bfdbfe; }
.detail-item-box.energy label { color: #1e40af; border-bottom-color: #bfdbfe; }
.detail-item-box.power { background: #f0fdf4; border: 1px solid #bbf7d0; }
.detail-item-box.power label { color: #166534; border-bottom-color: #bbf7d0; }
.detail-item-box.warning { background: #fffbeb; border: 1px solid #fde68a; }
.detail-item-box.warning label { color: #d97706; border-bottom-color: #fde68a; }
.detail-item-box.summary { background: #f8fafc; border: 1px solid #e2e8f0; }
.detail-item-box.summary label { color: #334155; border-bottom-color: #e2e8f0; }
.detail-item-box.history { background: #faf5ff; border: 1px solid #e9d5ff; }
.detail-item-box.history label { color: #7e22ce; border-bottom-color: #e9d5ff; }

.toggle-icon { display: inline-block; width: 20px; text-align: center; font-weight: bold; color: var(--primary); transition: transform 0.2s; margin-right: 4px; flex-shrink: 0; }
.row-header.open .toggle-icon { transform: rotate(90deg); }

/* TOOLTIPS */
.has-tooltip { position: relative; cursor: help; border-bottom: 1px dotted #9ca3af; color: #1f2937; }
.has-tooltip:hover::after { content: attr(data-tooltip); position: absolute; bottom: 100%; left: 0; transform: translateY(-4px); background: #1f2937; color: #fff; padding: 8px 12px; border-radius: 6px; font-size: 0.75rem; white-space: pre-wrap; min-width: 250px; max-width: 350px; z-index: 100; box-shadow: 0 4px 6px rgba(0,0,0,0.1); font-weight: normal; line-height: 1.4; }

/* TOAST */
.toast { position: fixed; bottom: 20px; right: 20px; background: #333; color: #fff; padding: 12px 24px; border-radius: 6px; opacity: 0; transition: opacity 0.3s; pointer-events: none; z-index: 1000; }
.toast.show { opacity: 1; }

/* CALCULADORA */
.panel-header { margin-bottom: 16px; padding-bottom: 10px; border-bottom: 2px solid var(--border); display: flex; justify-content: space-between; align-items: center; }

.factura-inputs { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; background-color: #eff6ff; padding: 15px; border-radius: 8px; border: 1px solid #bfdbfe; }
.input-group { display: flex; flex-direction: column; gap: 5px; }
.input-group label { font-weight: 600; font-size: 0.9rem; color: #1e3a8a; }

.table-prod input[type="number"], .table-prod input[type="text"],
.input-group input[type="number"], .input-group input[type="text"] {
    padding: 8px; border: 1px solid #d1d5db; border-radius: 6px; font-size: 0.9rem;
    width: 100%; min-width: 60px; background-color: #ffffff; color: #111827;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.05);
}

input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.2); }
.input-readonly { background-color: #e5e7eb !important; color: #4b5563 !important; cursor: not-allowed; border: 1px solid #d1d5db; font-weight: bold; }
.table-responsive { overflow-x: auto; }
.table-prod { width: 100%; border-collapse: collapse; margin-top: 10px; }
.table-prod th { background-color: #f8fafc; color: var(--text-muted); text-align: center; padding: 12px; font-size: 0.8rem; text-transform: uppercase; border-bottom: 2px solid var(--border); line-height: 1.2; }
.table-prod th small { font-size: 0.7rem; color: #9ca3af; text-transform: none; display: block; margin-top: 2px; }
.table-prod td { padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: center; }
.table-prod td:first-child { text-align: left; }

/* KPI CARDS */
.kpi-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 20px; }
.kpi-card { background: #f8fafc; padding: 16px; border-radius: 8px; border: 1px solid var(--border); text-align: center; }
.kpi-title { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 8px; font-weight: 600; }
.kpi-value { font-size: 1.8rem; font-weight: bold; color: var(--text-main); }
.kpi-card.alert { background-color: #fef2f2; border-color: #fca5a5; }
.kpi-card.alert .kpi-value { color: var(--danger); }

/* GRAFICOS */
.charts-container { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 900px) { .charts-container { grid-template-columns: 1fr; } }
@media (max-width: 600px) {
    .filter-bar { flex-direction: column; align-items: flex-start; }
    .view-modes { flex-direction: column; align-items: flex-start; }
    header { flex-direction: column; align-items: flex-start; }
}
.chart-box { height: 300px; width: 100%; }