/* ============================================================
   bobinas.css — Sistema de diseño unificado
   Paleta y componentes base de geometricaestatores.html
   ============================================================ */

/* ── Variables ───────────────────────────────────────────── */
:root {
    --bg:        #f0f4f8;
    --card:      #ffffff;
    --surface2:  #f1f5f9;
    --border:    #cbd5e1;
    --primary:   #1d4ed8;
    --plight:    #eff6ff;
    --text:      #1e293b;
    --muted:     #64748b;
    --green:     #16a34a;
    --yellow:    #ca8a04;
    --red:       #dc2626;
    --orange:    #ea580c;
    --acc:       #1d4ed8;
}

/* ── Reset & Base ────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    padding: 20px;
}

/* ── Layout ──────────────────────────────────────────────── */
.page { max-width: 940px; margin: 0 auto; }

/* ── Tipografía ──────────────────────────────────────────── */
h1 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
    text-align: center;
    margin-bottom: 3px;
}
.subtitle {
    text-align: center;
    font-size: .82rem;
    color: var(--muted);
    margin-bottom: 18px;
}

/* ── Card ────────────────────────────────────────────────── */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 18px 20px;
    margin-bottom: 14px;
}
.card-title {
    font-size: .73rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--primary);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ── Grillas ─────────────────────────────────────────────── */
.fg2 { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
.fg3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 13px; }
.fg4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 13px; }
.field { display: flex; flex-direction: column; gap: 5px; }
.field .hint { font-size: .68rem; color: var(--muted); margin-top: 1px; }

/* ── Inputs & Selects ────────────────────────────────────── */
select,
input[type="number"],
input[type="text"] {
    padding: 9px 10px;
    border: 1px solid var(--border);
    border-radius: 7px;
    font-size: .9rem;
    color: var(--text);
    background: #fff;
    width: 100%;
    transition: border-color .2s;
}
select:focus,
input:focus {
    outline: none;
    border-color: var(--primary);
}
label {
    font-size: .74rem;
    font-weight: 600;
    color: var(--muted);
}

/* ── Botones ─────────────────────────────────────────────── */
.btn-primary {
    padding: 9px 18px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 7px;
    font-size: .84rem;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    transition: background .2s;
}
.btn-primary:hover { background: #1e40af; }

.btn-calc {
    width: 100%;
    padding: 13px;
    background: linear-gradient(135deg, #1d4ed8, #7c3aed);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    margin-top: 4px;
    transition: opacity .2s;
}
.btn-calc:hover { opacity: .9; }

.btn-load {
    padding: 9px 18px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 7px;
    font-size: .84rem;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
}
.btn-load:hover { background: #1e40af; }

/* ── Badges ──────────────────────────────────────────────── */
.badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: .72rem;
    font-weight: 700;
}
.badge-ok     { background: #dcfce7; color: #15803d; }
.badge-good   { background: #dbeafe; color: #1d4ed8; }
.badge-warn   { background: #fef9c3; color: #854d0e; }
.badge-danger { background: #fee2e2; color: #991b1b; }

/* ── Alertas ─────────────────────────────────────────────── */
.alerta {
    padding: 9px 13px;
    border-radius: 7px;
    font-size: .81rem;
    margin-top: 8px;
    line-height: 1.5;
}
.alerta-ok   { background: #f0fdf4; border: 1px solid #86efac; color: #14532d; }
.alerta-warn { background: #fefce8; border: 1px solid #fde047; color: #713f12; }
.alerta-info { background: #eff6ff; border: 1px solid #93c5fd; color: #1e3a8a; }

/* ── Tabla de referencia ─────────────────────────────────── */
.ref-table { width: 100%; border-collapse: collapse; font-size: .77rem; margin-top: 8px; }
.ref-table th {
    background: var(--plight);
    color: var(--primary);
    font-weight: 700;
    padding: 6px 8px;
    text-align: left;
    border-bottom: 2px solid var(--border);
}
.ref-table td { padding: 5px 8px; border-bottom: 1px solid #f1f5f9; }
.ref-table tr.sel-row { background: #dbeafe; font-weight: 600; }
.ref-table tr:hover { background: #f8fafc; }

/* ── Selector NEMA ───────────────────────────────────────── */
.nema-bar { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; }
.nema-bar .fg { display: flex; flex-direction: column; gap: 5px; flex: 1; min-width: 130px; }
#nema-loaded { font-size: .77rem; color: var(--green); margin-top: 8px; display: none; line-height: 1.5; }

/* ── Resultados ──────────────────────────────────────────── */
#resultados { display: none; }
.res-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(255px, 1fr)); gap: 13px; }
.res-block {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 15px;
}
.res-block-title {
    font-size: .7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--muted);
    margin-bottom: 10px;
}
.res-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 5px 0;
    border-bottom: 1px dashed var(--border);
    font-size: .82rem;
    gap: 8px;
}
.res-row:last-child { border: none; }
.res-row span { color: var(--muted); flex-shrink: 0; }
.res-val { font-weight: 700; color: var(--text); text-align: right; }
.res-hi { background: #f0fdf4; border-radius: 5px; padding: 5px 6px; }

/* ── Factor de llenado Ku ────────────────────────────────── */
.ku-wrap { margin-top: 13px; }
.ku-bar-bg { height: 14px; background: #e2e8f0; border-radius: 7px; overflow: hidden; margin: 8px 0 4px; }
.ku-bar { height: 100%; border-radius: 7px; transition: width .5s; }
.ku-legend { display: flex; justify-content: space-between; font-size: .67rem; color: var(--muted); }
.ku-detail {
    font-size: .75rem;
    color: var(--muted);
    margin-top: 9px;
    line-height: 1.8;
    background: #f8fafc;
    border-radius: 6px;
    padding: 9px 11px;
    border: 1px solid var(--border);
}
.ku-detail b { color: var(--text); }

/* ── Panel datos de placa ────────────────────────────────── */
.pl-stat {
    background: var(--surface2);
    border-radius: 7px;
    padding: 8px 11px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.pl-stat-lbl { font-size: .72rem; color: var(--muted); }
.pl-stat-val { font-size: .95rem; font-weight: 700; color: var(--primary); }

/* ── Diagrama ranura ─────────────────────────────────────── */
.ranura-wrap { display: flex; gap: 18px; align-items: flex-start; }
.ranura-svg { flex-shrink: 0; }

/* ── Metodo referencia ───────────────────────────────────── */
.metodo-ref { font-size: .72rem; color: var(--muted); text-align: right; margin-top: 4px; }

/* ── Details/Summary ─────────────────────────────────────── */
details summary { font-size: .77rem; color: var(--primary); cursor: pointer; user-select: none; }

/* ── Header de página (subpáginas) ──────────────────────── */
.page-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 20px;
    background: var(--plight);
    border-bottom: 2px solid var(--border);
    margin-bottom: 18px;
    position: sticky;
    top: 0;
    z-index: 100;
}
.back-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    text-decoration: none;
    font-size: .84rem;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 7px;
    border: 1px solid var(--border);
    background: var(--card);
    transition: background .2s;
}
.back-btn:hover { background: var(--plight); }
.page-title { font-size: 1.1rem; font-weight: 700; color: var(--primary); }
.page-subtitle { font-size: .8rem; color: var(--muted); }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 620px) {
    .fg2, .fg3, .fg4 { grid-template-columns: 1fr; }
    .ranura-wrap { flex-direction: column; }
    .nema-bar { flex-direction: column; }
}