@import url('https://fonts.googleapis.com/css2?family=Dosis:wght@400;500;600;700;800&display=swap');

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

:root {
    --naranja:    #EF7800;
    --naranja-dk: #c96200;
    --azul:       #009FE4;
    --azul-dk:    #007ab8;
    --fondo:      #F8FAFC;
    --surface:    #FFFFFF;
    --texto:      #1E293B;
    --texto-suave:#64748B;
    --borde:      #E2E8F0;
    --sombra:     0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
    --sombra-md:  0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
    --radio:      8px;
    --radio-sm:   6px;
}

html { font-size: 15px; }

body {
    font-family: 'Dosis', system-ui, sans-serif;
    font-weight: 500;
    background: var(--fondo);
    color: var(--texto);
    display: flex;
    min-height: 100vh;
}

/* ── Sidebar ─────────────────────────────────────────── */
.sidebar {
    width: 220px;
    min-height: 100vh;
    background: var(--texto);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0;
    z-index: 100;
}

.sidebar-logo {
    padding: 24px 20px 20px;
    border-bottom: 1px solid rgba(255,255,255,.08);
}

.sidebar-logo .logo-titulo {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--naranja);
    letter-spacing: .04em;
    text-transform: uppercase;
    line-height: 1;
}

.sidebar-logo .logo-sub {
    font-size: .75rem;
    color: rgba(255,255,255,.45);
    margin-top: 4px;
}

nav.sidebar-nav {
    flex: 1;
    padding: 16px 0;
}

.nav-section {
    font-size: .68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: rgba(255,255,255,.3);
    padding: 16px 20px 6px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: rgba(255,255,255,.65);
    text-decoration: none;
    font-size: .9rem;
    font-weight: 600;
    transition: background .15s, color .15s;
    border-left: 3px solid transparent;
}

.nav-link:hover {
    background: rgba(255,255,255,.06);
    color: #fff;
}

.nav-link.activo {
    background: rgba(239,120,0,.12);
    color: var(--naranja);
    border-left-color: var(--naranja);
}

.nav-link .icon { font-size: 1rem; width: 18px; text-align: center; }

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,.08);
    font-size: .72rem;
    color: rgba(255,255,255,.25);
}

/* ── Main ────────────────────────────────────────────── */
.main {
    margin-left: 220px;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--borde);
    padding: 16px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.topbar h1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--texto);
}

.topbar-meta {
    font-size: .8rem;
    color: var(--texto-suave);
}

.contenido {
    padding: 28px;
    flex: 1;
}

/* ── Cards ───────────────────────────────────────────── */
.card {
    background: var(--surface);
    border: 1px solid var(--borde);
    border-radius: var(--radio);
    box-shadow: var(--sombra);
    padding: 20px 24px;
}

.card-titulo {
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--texto-suave);
    margin-bottom: 12px;
}

/* ── Grid de KPIs ────────────────────────────────────── */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.kpi {
    background: var(--surface);
    border: 1px solid var(--borde);
    border-radius: var(--radio);
    padding: 18px 20px;
    box-shadow: var(--sombra);
}

.kpi-label {
    font-size: .75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--texto-suave);
    margin-bottom: 6px;
}

.kpi-valor {
    font-size: 1.9rem;
    font-weight: 800;
    color: var(--texto);
    line-height: 1;
}

.kpi-valor.naranja { color: var(--naranja); }
.kpi-valor.azul    { color: var(--azul); }
.kpi-valor.verde   { color: #16a34a; }
.kpi-valor.rojo    { color: #dc2626; }

.kpi-unidad {
    font-size: .8rem;
    font-weight: 600;
    color: var(--texto-suave);
    margin-top: 4px;
}

/* ── Botones ─────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border-radius: var(--radio-sm);
    font-family: 'Dosis', sans-serif;
    font-size: .9rem;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: background .15s, transform .1s;
    text-decoration: none;
}

.btn:active { transform: translateY(1px); }

.btn-primario {
    background: var(--naranja);
    color: #fff;
}
.btn-primario:hover { background: var(--naranja-dk); }

.btn-secundario {
    background: var(--azul);
    color: #fff;
}
.btn-secundario:hover { background: var(--azul-dk); }

.btn-outline {
    background: transparent;
    border: 2px solid var(--borde);
    color: var(--texto);
}
.btn-outline:hover { border-color: var(--naranja); color: var(--naranja); }

.btn-sm { padding: 6px 12px; font-size: .8rem; }

/* ── Formularios ─────────────────────────────────────── */
.form-grupo {
    margin-bottom: 18px;
}

.form-grupo label {
    display: block;
    font-size: .82rem;
    font-weight: 700;
    color: var(--texto-suave);
    text-transform: uppercase;
    letter-spacing: .04em;
    margin-bottom: 6px;
}

.form-grupo input,
.form-grupo select,
.form-grupo textarea {
    width: 100%;
    padding: 9px 12px;
    border: 1.5px solid var(--borde);
    border-radius: var(--radio-sm);
    font-family: 'Dosis', sans-serif;
    font-size: .95rem;
    font-weight: 500;
    color: var(--texto);
    background: var(--surface);
    transition: border-color .15s;
    outline: none;
}

.form-grupo input:focus,
.form-grupo select:focus {
    border-color: var(--naranja);
}

.form-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
}

/* ── Upload zone ─────────────────────────────────────── */
.upload-zone {
    border: 2px dashed var(--borde);
    border-radius: var(--radio);
    padding: 40px 24px;
    text-align: center;
    cursor: pointer;
    transition: border-color .2s, background .2s;
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--naranja);
    background: rgba(239,120,0,.04);
}

.upload-zone .upload-icon { font-size: 2.5rem; margin-bottom: 12px; }
.upload-zone .upload-texto { font-size: .95rem; color: var(--texto-suave); }
.upload-zone .upload-texto strong { color: var(--naranja); }

/* ── Tabla ───────────────────────────────────────────── */
.tabla-wrap { overflow-x: auto; }

table.tabla {
    width: 100%;
    border-collapse: collapse;
    font-size: .88rem;
}

.tabla th {
    background: var(--fondo);
    padding: 10px 14px;
    text-align: left;
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--texto-suave);
    border-bottom: 2px solid var(--borde);
}
.tabla th.text-right { text-align: right; }

.tabla td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--borde);
    color: var(--texto);
}

.tabla tr:last-child td { border-bottom: none; }
.tabla tr:hover td { background: rgba(0,159,228,.04); }

/* ── Badges ──────────────────────────────────────────── */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 20px;
    font-size: .72rem;
    font-weight: 700;
}

.badge-verde  { background: #dcfce7; color: #16a34a; }
.badge-rojo   { background: #fee2e2; color: #dc2626; }
.badge-azul   { background: #dbeafe; color: #2563eb; }
.badge-naranja { background: #ffedd5; color: var(--naranja-dk); }

/* ── Alertas ─────────────────────────────────────────── */
.alerta {
    padding: 12px 16px;
    border-radius: var(--radio-sm);
    font-size: .88rem;
    font-weight: 600;
    margin-bottom: 16px;
    display: none;
}
.alerta.visible { display: block; }
.alerta-ok    { background: #dcfce7; color: #15803d; border-left: 4px solid #16a34a; }
.alerta-error { background: #fee2e2; color: #b91c1c; border-left: 4px solid #dc2626; }
.alerta-info  { background: #dbeafe; color: #1d4ed8; border-left: 4px solid #2563eb; }

/* ── Spinner ─────────────────────────────────────────── */
.spinner {
    display: inline-block;
    width: 18px; height: 18px;
    border: 2px solid rgba(255,255,255,.35);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin .6s linear infinite;
    vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Utilidades ──────────────────────────────────────── */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-2 { margin-bottom: 16px; }
/* ── Pills de filtro ─────────────────────────────────── */
.pill {
    padding: 4px 14px;
    border-radius: 20px;
    font-family: 'Dosis', sans-serif;
    font-size: .82rem;
    font-weight: 700;
    cursor: pointer;
    border: 1.5px solid var(--borde);
    background: var(--surface);
    color: var(--texto-suave);
    transition: all .15s;
}
.pill:hover        { border-color: var(--naranja); color: var(--naranja); }
.pill-activa       { background: var(--naranja); border-color: var(--naranja); color: #fff; }
.pill-activa:hover { background: var(--naranja-dk); border-color: var(--naranja-dk); color: #fff; }

.text-derecha { text-align: right; }
.text-right   { text-align: right; }
.text-suave { color: var(--texto-suave); }

.tip {
    display: inline-block;
    margin-left: 4px;
    font-size: .7rem;
    color: var(--azul);
    cursor: help;
    vertical-align: middle;
}
.text-sm { font-size: .82rem; }
.negrita { font-weight: 700; }
.w-100 { width: 100%; }

/* ── Mes picker ──────────────────────────────────────── */
.mes-picker {
    display: grid;
    grid-template-columns: 1fr 90px;
    gap: 8px;
}

.mes-picker select {
    width: 100%;
    padding: 9px 12px;
    border: 1.5px solid var(--borde);
    border-radius: var(--radio-sm);
    font-family: 'Dosis', sans-serif;
    font-size: .95rem;
    font-weight: 600;
    color: var(--texto);
    background: var(--surface);
    transition: border-color .15s;
    outline: none;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2364748B' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 28px;
}

.mes-picker select:focus {
    border-color: var(--naranja);
}

/* Simulador: ocultar columnas de tramos en tarifa única */
.sim-unico .sim-col-tramo { display: none; }

/* Simulador: tabla desglose */
#tabla-sim thead tr:first-child th {
    font-size: .68rem;
    text-align: center;
    padding: 6px 14px 4px;
    border-bottom: 1px solid var(--borde);
    background: var(--fondo);
}

#tabla-sim .sim-th-mid {
    vertical-align: middle;
    border-bottom: 2px solid var(--borde);
}

#tabla-sim .sim-th-grupo {
    font-size: .65rem;
    color: var(--texto-suave);
    text-transform: uppercase;
    letter-spacing: .06em;
    font-weight: 700;
}

#tabla-sim .sim-th-sep,
#tabla-sim td.sim-th-sep {
    border-left: 2px solid var(--borde);
}

/* ── Simulador: dashboard hero ───────────────────────────────────── */
.dashboard-hero {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 14px;
    margin-bottom: 20px;
}

.hero-kpi {
    background: var(--surface);
    border: 1px solid var(--borde);
    border-radius: var(--radio);
    padding: 18px 22px;
    box-shadow: var(--sombra);
    position: relative;
    overflow: hidden;
}

.hero-kpi-principal {
    background: linear-gradient(135deg, #fff6ec 0%, #fff 60%);
    border-color: var(--naranja);
}

.hero-kpi-principal::before {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 4px; height: 100%;
    background: var(--naranja);
}

.hero-label {
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--texto-suave);
    margin-bottom: 8px;
}

.hero-valor {
    font-size: 2.6rem;
    font-weight: 800;
    color: var(--naranja);
    line-height: 1;
}

.hero-valor.sub {
    font-size: 1.6rem;
    color: var(--texto);
}

.hero-valor.negativo {
    color: #dc2626;
}

.hero-extra {
    font-size: .85rem;
    font-weight: 600;
    color: var(--texto-suave);
    margin-top: 6px;
}

/* ── Resumen comparativo ──────────────────────────────────────────── */
.resumen-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.resumen-col {
    border: 1px solid var(--borde);
    border-radius: var(--radio-sm);
    padding: 16px 18px;
    background: var(--fondo);
}

.resumen-titulo {
    font-size: .85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--borde);
}

.resumen-titulo-actual { color: var(--azul); border-bottom-color: var(--azul); }
.resumen-titulo-nuevo  { color: var(--naranja); border-bottom-color: var(--naranja); }

.resumen-fila {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 6px 0;
    font-size: .9rem;
    color: var(--texto-suave);
}

.resumen-fila strong {
    color: var(--texto);
    font-weight: 700;
}

.resumen-fila.total {
    border-top: 1px solid var(--borde);
    margin-top: 6px;
    padding-top: 10px;
    font-size: 1rem;
}

.resumen-fila.total strong {
    font-size: 1.15rem;
    color: var(--naranja);
}

/* ── Tabla simulador compacta ─────────────────────────────────────── */
.tabla-sim-compacta { font-size: .82rem; }
.tabla-sim-compacta th,
.tabla-sim-compacta td { padding: 8px 10px; }

.btn-detalle {
    background: transparent;
    border: 1px solid var(--borde);
    color: var(--azul);
    width: 26px; height: 26px;
    border-radius: 50%;
    cursor: pointer;
    font-weight: 700;
    font-size: .85rem;
    transition: all .15s;
    padding: 0;
}

.btn-detalle:hover {
    background: var(--azul);
    color: #fff;
    border-color: var(--azul);
}

/* ── Modal detalle ────────────────────────────────────────────────── */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,.5);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.modal-detalle {
    background: var(--surface);
    border-radius: var(--radio);
    width: 100%;
    max-width: 1100px;
    max-height: 92vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0,0,0,.3);
}

.modal-header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--borde);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h2 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--texto);
}

.modal-cerrar {
    background: transparent;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--texto-suave);
    width: 36px; height: 36px;
    border-radius: 50%;
    transition: background .15s;
}

.modal-cerrar:hover {
    background: var(--fondo);
    color: var(--texto);
}

.modal-body {
    padding: 20px 24px;
    overflow-y: auto;
}

/* Tabla detalle Excel-style */
.tabla-detalle-excel {
    width: 100%;
    border-collapse: collapse;
    font-size: .85rem;
    margin-top: 4px;
}

.tabla-detalle-excel th,
.tabla-detalle-excel td {
    padding: 8px 12px;
    border: 1px solid var(--borde);
    text-align: right;
}

.tabla-detalle-excel th:first-child,
.tabla-detalle-excel td:first-child {
    text-align: left;
    font-weight: 700;
    color: var(--texto-suave);
    background: var(--fondo);
    width: 220px;
}

.tabla-detalle-excel thead th {
    background: var(--fondo);
    text-align: center;
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--texto-suave);
    font-weight: 700;
}

.tabla-detalle-excel thead th.th-actual { color: var(--azul); }
.tabla-detalle-excel thead th.th-nuevo  { color: var(--naranja); }

.tabla-detalle-excel tr.fila-total td {
    background: rgba(239,120,0,.06);
    font-weight: 700;
    color: var(--texto);
}

.tabla-detalle-excel tr.fila-subtotal td {
    background: var(--fondo);
    font-weight: 700;
}

.tabla-detalle-excel tr.fila-final td {
    background: rgba(0,159,228,.08);
    font-weight: 800;
    font-size: .95rem;
    color: var(--texto);
}

.tabla-detalle-excel td.col-actual { color: var(--azul-dk); }
.tabla-detalle-excel td.col-nuevo  { color: var(--naranja-dk); }
.tabla-detalle-excel td.col-ahorro { color: var(--naranja); font-weight: 700; }

.modal-meta-kwh {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin-bottom: 18px;
    padding: 14px 18px;
    background: var(--fondo);
    border-radius: var(--radio-sm);
}

.modal-meta-kwh div {
    text-align: center;
}

.modal-meta-kwh .meta-label {
    font-size: .68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--texto-suave);
}

.modal-meta-kwh .meta-valor {
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--texto);
    margin-top: 4px;
}


/* ── Ajustes: tramos y tabs ──────────────────────────────────────── */
.tramo-p1 { background:#fde0e0; color:#8a1a1a; padding:2px 8px; border-radius:4px; font-weight:600; font-size:0.85em; }
.tramo-p2 { background:#fff3d0; color:#8a5a00; padding:2px 8px; border-radius:4px; font-weight:600; font-size:0.85em; }
.tramo-p3 { background:#d8f0d8; color:#1a5a1a; padding:2px 8px; border-radius:4px; font-weight:600; font-size:0.85em; }
.tab-btn.activo { background:#2c5dab; color:#fff; border-color:#2c5dab; }