/* =========================================================================
   Monitoreo de Vibraciones — hoja de estilos
   Identidad: sala de control / instrumentación industrial.
   Fondo profundo, acentos cian (señal viva) y ámbar (alerta),
   TAGs y datos en monoespaciada como en una lectura de campo.
   ========================================================================= */

:root {
  --bg-deep: #0a1119;
  --bg-page: #0d1621;
  --bg-panel: #131f2b;
  --bg-panel-alt: #17242f;
  --bg-raised: #1b2934;

  --border: #24333f;
  --border-soft: #1a2731;
  --border-strong: #33475a;

  --text-primary: #dfe8ee;
  --text-secondary: #8ca0b3;
  --text-muted: #55697c;

  --accent-cyan: #3ecdc4;
  --accent-cyan-dim: rgba(62, 205, 196, 0.12);
  --accent-amber: #eea350;
  --accent-amber-dim: rgba(238, 163, 80, 0.14);
  --accent-red: #e2645a;
  --accent-red-dim: rgba(226, 100, 90, 0.16);

  --font-display: "Segoe UI Semibold", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Consolas", "SFMono-Regular", "JetBrains Mono", "Courier New", monospace;

  --radius: 6px;
  --radius-sm: 3px;
  --shadow-panel: 0 12px 32px -16px rgba(0, 0, 0, 0.55);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-page);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
}

body {
  background-image:
    radial-gradient(ellipse 900px 400px at 15% -10%, rgba(62,205,196,0.05), transparent 60%),
    radial-gradient(ellipse 700px 400px at 100% 0%, rgba(238,163,80,0.04), transparent 60%);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }

::selection { background: var(--accent-cyan-dim); color: var(--text-primary); }

*:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
}

/* ---------------------------------------------------------------------- */
/* Layout shell                                                            */
/* ---------------------------------------------------------------------- */

.shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px 64px;
}

/* ---------------------------------------------------------------------- */
/* Header + waveform signature strip                                      */
/* ---------------------------------------------------------------------- */

.site-header {
  border-bottom: 1px solid var(--border-soft);
  background: linear-gradient(180deg, var(--bg-deep), var(--bg-page));
  padding: 22px 28px 0;
}

.site-header__top {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand__mark {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-panel);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brand__mark svg { display: block; }

.brand__title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin: 0;
}

.brand__subtitle {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  margin-top: 2px;
}

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 2px 4px;
}

.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--accent-cyan); }
.breadcrumb .sep { color: var(--text-muted); }
.breadcrumb .current { color: var(--text-primary); }

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  background: var(--bg-panel);
  padding: 6px 10px;
  border-radius: 20px;
}

.status-chip .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 0 3px var(--accent-cyan-dim);
}

.waveform-strip {
  max-width: 1180px;
  margin: 18px auto 0;
  height: 46px;
  border-top: 1px solid var(--border-soft);
}

/* ---------------------------------------------------------------------- */
/* Hero                                                                    */
/* ---------------------------------------------------------------------- */

.hero {
  padding: 44px 0 8px;
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin: 0 0 10px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
  max-width: 780px;
}

.hero p {
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 0 28px;
  font-size: 15px;
}

.hero__scope {
  border: 1px solid var(--border);
  background: var(--bg-panel);
  border-radius: var(--radius);
  padding: 0;
  overflow: hidden;
  box-shadow: var(--shadow-panel);
}

.hero__scope-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-muted);
}

.hero__scope canvas {
  display: block;
  width: 100%;
  height: 130px;
}

/* ---------------------------------------------------------------------- */
/* Section labels                                                          */
/* ---------------------------------------------------------------------- */

.section-label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 46px 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.section-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border-soft);
}

/* ---------------------------------------------------------------------- */
/* Zone cards (home + offshore)                                            */
/* ---------------------------------------------------------------------- */

.zone-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.zone-grid--three { grid-template-columns: repeat(3, 1fr); }

.zone-card {
  position: relative;
  display: block;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 22px 20px;
  transition: border-color 0.15s ease, transform 0.15s ease, background 0.15s ease;
  overflow: hidden;
}

.zone-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent-cyan);
  opacity: 0.55;
}

.zone-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  background: var(--bg-panel-alt);
}

.zone-card__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.zone-card__code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 3px 7px;
}

.zone-card h3 {
  font-family: var(--font-display);
  font-size: 19px;
  margin: 14px 0 6px;
}

.zone-card p {
  color: var(--text-secondary);
  font-size: 13px;
  margin: 0 0 16px;
}

.zone-card__meta {
  display: flex;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

.zone-card__meta b { color: var(--text-secondary); font-weight: 600; }

.zone-card--offshore {
  grid-column: 1 / -1;
}

.zone-card--offshore .platform-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.platform-pill {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  background: var(--bg-page);
  padding: 5px 10px;
  border-radius: 20px;
}

.platform-card {
  position: relative;
}

.platform-card .zone-card__code { color: var(--accent-amber); border-color: var(--accent-amber-dim); }
.platform-card::before { background: var(--accent-amber); }

/* ---------------------------------------------------------------------- */
/* Panel de estado general de la planta (index.html)                       */
/* ---------------------------------------------------------------------- */

.status-overview {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.status-overview__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.status-overview__head h3 {
  font-family: var(--font-display);
  font-size: 16px;
  margin: 0 0 4px;
}

.status-overview__head .sub {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  margin: 0;
}

.status-overview__body {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  padding: 12px 4px 4px;
}

#status-donut { flex-shrink: 0; }

.status-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(200px, 1fr));
  gap: 8px 24px;
  flex: 1;
  min-width: 260px;
}

.status-legend li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  padding: 5px 0;
  border-bottom: 1px solid var(--border-soft);
}

.status-legend .legend-dot {
  width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0;
}

.status-legend .legend-label { flex: 1; color: var(--text-secondary); }
.status-legend .legend-count { font-family: var(--font-mono); color: var(--text-primary); font-weight: 600; }
.status-legend .legend-pct { font-family: var(--font-mono); color: var(--text-muted); font-size: 11.5px; width: 38px; text-align: right; }

.status-legend__total {
  grid-column: 1 / -1;
  border-bottom: none !important;
  border-top: 1px solid var(--border);
  margin-top: 4px;
  padding-top: 10px !important;
  font-weight: 600;
}
.status-legend__total .legend-label { color: var(--text-primary); }

/* ---------------------------------------------------------------------- */
/* Toolbar / search / filters (zona.html)                                  */
/* ---------------------------------------------------------------------- */

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 18px;
}

.search-box {
  position: relative;
  flex: 1 1 260px;
}

.search-box input {
  width: 100%;
  background: var(--bg-page);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 14px;
  padding: 10px 12px 10px 34px;
  border-radius: var(--radius-sm);
}

.search-box input:focus { border-color: var(--accent-cyan); }
.search-box input::placeholder { color: var(--text-muted); }

.search-box svg {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.select {
  background: var(--bg-page);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 13px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-raised);
  border: 1px solid var(--border-strong);
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
}

.btn:hover { border-color: var(--accent-cyan); }
.btn--primary {
  background: var(--accent-cyan);
  color: #06211f;
  border-color: var(--accent-cyan);
}
.btn--primary:hover { filter: brightness(1.08); }
.btn--ghost { background: transparent; }
.btn--sm { padding: 6px 10px; font-size: 12px; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---------------------------------------------------------------------- */
/* Stats strip                                                             */
/* ---------------------------------------------------------------------- */

.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.stat {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.stat .n {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
}

.stat .label {
  font-size: 11.5px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 2px;
}

.stat--normal .n { color: var(--accent-cyan); }
.stat--alerta .n { color: var(--accent-amber); }
.stat--critico .n { color: var(--accent-red); }

/* ---------------------------------------------------------------------- */
/* Equipment table                                                         */
/* ---------------------------------------------------------------------- */

.equip-table-wrap {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

table.equip-table {
  width: 100%;
  border-collapse: collapse;
}

.equip-table thead th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel-alt);
}

.equip-table tbody tr {
  border-bottom: 1px solid var(--border-soft);
  cursor: pointer;
  transition: background 0.12s ease;
}

.equip-table tbody tr:hover { background: var(--bg-panel-alt); }
.equip-table tbody tr:last-child { border-bottom: none; }

.equip-table td {
  padding: 12px 14px;
  vertical-align: middle;
  font-size: 13.5px;
}

.tag-cell {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.type-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
  text-transform: uppercase;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
}

.pill .dot { width: 7px; height: 7px; border-radius: 50%; }

.pill--normal { background: var(--accent-cyan-dim); color: var(--accent-cyan); }
.pill--normal .dot { background: var(--accent-cyan); }
.pill--alerta { background: var(--accent-amber-dim); color: var(--accent-amber); }
.pill--alerta .dot { background: var(--accent-amber); }
.pill--critico { background: var(--accent-red-dim); color: var(--accent-red); }
.pill--critico .dot { background: var(--accent-red); }
.pill--sindato { background: var(--bg-raised); color: var(--text-muted); }
.pill--sindato .dot { background: var(--text-muted); }

.reading-val { font-family: var(--font-mono); }
.reading-date { color: var(--text-muted); font-size: 11.5px; display: block; margin-top: 1px; }

.spark-cell canvas { display: block; }

/* ---------------------------------------------------------------------- */
/* Empty state                                                             */
/* ---------------------------------------------------------------------- */

.empty-state {
  text-align: center;
  padding: 64px 24px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  background: var(--bg-panel);
}

.empty-state h3 {
  font-family: var(--font-display);
  font-size: 18px;
  margin: 14px 0 6px;
}

.empty-state p {
  color: var(--text-secondary);
  max-width: 440px;
  margin: 0 auto 22px;
  font-size: 13.5px;
}

.empty-state .actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------------------------------------------------------------------- */
/* Modal / detail drawer                                                   */
/* ---------------------------------------------------------------------- */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6, 10, 15, 0.72);
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 20px;
  z-index: 50;
  overflow-y: auto;
}

.modal-overlay.open { display: flex; }

.modal {
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  width: 100%;
  max-width: 640px;
  box-shadow: var(--shadow-panel);
}

.modal__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border-soft);
}

.modal__head h3 {
  font-family: var(--font-mono);
  font-size: 20px;
  margin: 0 0 4px;
}

.modal__head .sub { color: var(--text-secondary); font-size: 13px; }

.modal__close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
  padding: 4px;
}
.modal__close:hover { color: var(--text-primary); }

.modal__body { padding: 20px; }

.modal__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 18px;
}

.modal__grid .field {
  background: var(--bg-page);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}

.modal__grid .field .k {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.modal__grid .field .v {
  font-family: var(--font-mono);
  font-size: 14px;
}

.modal__subheading {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 20px 0 8px;
}

.modal__subheading:first-of-type { margin-top: 0; }

.text-block {
  background: var(--bg-page);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.55;
  white-space: pre-line;
}

.modal__updated {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-muted);
  margin: 10px 0 0;
}

.chart-panel {
  background: var(--bg-page);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
}

.chart-panel canvas { width: 100%; height: 160px; display: block; }

.history-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 14px;
  font-size: 12.5px;
}

.history-table th, .history-table td {
  text-align: left;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border-soft);
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

.history-table th { color: var(--text-muted); font-weight: 500; text-transform: uppercase; font-size: 10.5px; }

/* ---------------------------------------------------------------------- */
/* Import panel                                                            */
/* ---------------------------------------------------------------------- */

.import-note {
  font-size: 12.5px;
  color: var(--text-muted);
  margin: 10px 0 0;
}

.import-note code {
  background: var(--bg-page);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: var(--bg-raised);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  font-size: 13.5px;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-panel);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 100;
}

.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.toast--error { border-color: var(--accent-red); }
.toast.toast--ok { border-color: var(--accent-cyan); }

/* ---------------------------------------------------------------------- */
/* Footer                                                                   */
/* ---------------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--border-soft);
  margin-top: 60px;
  padding: 18px 28px;
  color: var(--text-muted);
  font-size: 12px;
  text-align: center;
}

/* ---------------------------------------------------------------------- */
/* Responsive                                                               */
/* ---------------------------------------------------------------------- */

@media (max-width: 760px) {
  .zone-grid, .zone-grid--three { grid-template-columns: 1fr; }
  .stats-strip { grid-template-columns: repeat(2, 1fr); }
  .modal__grid { grid-template-columns: 1fr 1fr; }
  .equip-table thead { display: none; }
  .equip-table, .equip-table tbody, .equip-table tr, .equip-table td { display: block; width: 100%; }
  .equip-table tr { padding: 10px 14px; }
  .equip-table td { padding: 4px 0; border-bottom: none; }
  .spark-cell { display: none; }
}