:root {
  --bg-app: #090d16;
  --bg-panel: #111827;
  --bg-card: #1e293b;
  --bg-card-hover: #26354d;
  --bg-input: #0f172a;
  --border: #2e3d52;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent: #38bdf8;
  --accent-strong: #0284c7;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg-app);
  color: var(--text-main);
  line-height: 1.45;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ENCABEZADO EDITORIAL */
.top-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 1.5rem;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 0.75rem;
}

.kicker {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-weight: 700;
}

.top-header h1 {
  margin: 0.12rem 0 0 0;
  font-size: 1.22rem;
  font-weight: 700;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.audio-toggle-btn {
  background: var(--bg-input);
  color: #bae6fd;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.42rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.audio-toggle-btn:hover {
  border-color: var(--accent);
}

.audio-toggle-btn.muted {
  color: var(--text-muted);
  opacity: 0.75;
}

.mode-switcher {
  display: flex;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  gap: 4px;
}

.mode-btn {
  background: transparent;
  color: var(--text-muted);
  border: none;
  padding: 0.42rem 0.9rem;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.mode-btn.active {
  background: var(--accent-strong);
  color: #ffffff;
}

/* PANEL DE CONTROLES Y LÍNEA DE TIEMPO */
.experience-controls {
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  padding: 0.9rem 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.url-bar-row {
  display: flex;
  gap: 0.65rem;
  align-items: stretch;
}

.url-field-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 0.75rem;
  transition: border-color 0.15s ease;
}

.url-field-wrapper:focus-within {
  border-color: var(--accent);
}

.url-icon {
  font-size: 0.95rem;
  margin-right: 0.5rem;
  opacity: 0.8;
}

.url-field-wrapper input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 0.92rem;
  padding: 0.58rem 0;
  outline: none;
}

.btn-action {
  background: var(--accent-strong);
  color: #ffffff;
  border: none;
  border-radius: 8px;
  padding: 0 1.4rem;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s ease;
}

.btn-action:hover {
  background: #0369a1;
}

.btn-action.is-running {
  background: var(--danger);
}

.btn-action.is-running:hover {
  background: #dc2626;
}

/* PÍLDORAS DE SITIOS SUGERIDOS */
.suggestions-row {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.suggestions-label {
  font-size: 0.76rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-right: 0.2rem;
}

.suggestion-pill {
  background: var(--bg-input);
  color: #cbd5e1;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.28rem 0.75rem;
  font-size: 0.77rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.suggestion-pill:hover {
  border-color: var(--accent);
  color: #ffffff;
}

.suggestion-pill.active {
  background: rgba(56, 189, 248, 0.14);
  border-color: var(--accent);
  color: #bae6fd;
  font-weight: 600;
}

/* LÍNEA DE TIEMPO DE 8 ESCALONES */
.era-selectors-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.8rem;
  margin-top: 0.1rem;
}

.era-selectors-wrapper.compare-layout {
  grid-template-columns: 1fr 1fr;
}

.era-block {
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.6rem 0.8rem;
}

.era-block-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.45rem;
}

.era-block-title {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  color: var(--accent);
}

.era-block-desc {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.era-cards-row {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 0.38rem;
}

.era-selectors-wrapper.compare-layout .era-cards-row {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.era-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 0.45rem 0.55rem;
  text-align: left;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
  transition: all 0.15s ease;
}

.era-card:hover {
  background: var(--bg-card-hover);
  border-color: #475569;
}

.era-card.selected {
  background: rgba(2, 132, 199, 0.24);
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.35);
}

.era-card-tag {
  font-size: 0.74rem;
  font-weight: 700;
  color: #f8fafc;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.era-card.selected .era-card-tag {
  color: #7dd3fc;
}

.era-card-speed {
  font-size: 0.67rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

/* ZONA CENTRAL DEL VISOR */
.workspace-grid {
  flex: 1;
  display: grid;
  padding: 0.95rem 1.5rem;
  gap: 1rem;
}

.workspace-grid.single-mode {
  grid-template-columns: 1fr;
}

.workspace-grid.compare-mode {
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
}

.viewer-column {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.35);
}

.viewer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 0.95rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 0.55rem;
}

.workspace-grid.compare-mode .viewer-header {
  min-height: 112px;
  align-content: space-between;
}

.viewer-title-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.profile-pill {
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: #bae6fd;
  font-size: 0.73rem;
  padding: 0.14rem 0.55rem;
  border-radius: 999px;
}

/* SIMULADOR FÍSICO DE LEDS DE MÓDEM (PWR / DSL / NET / DATA) */
.modem-chassis {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  background: #070b12;
  border: 1px solid #334155;
  border-radius: 6px;
  padding: 0.25rem 0.65rem;
  box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.7);
}

.modem-model {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  color: #64748b;
  text-transform: uppercase;
  border-right: 1px solid #1e293b;
  padding-right: 0.5rem;
}

.modem-leds {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.led-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.led-bulb {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #1e293b;
  border: 1px solid #0f172a;
  transition: background-color 0.08s ease, box-shadow 0.08s ease;
}

.led-bulb.on {
  background: #22c55e;
  box-shadow: 0 0 7px #22c55e;
}

.led-bulb.amber {
  background: #f59e0b;
  box-shadow: 0 0 7px #f59e0b;
}

.led-bulb.blink-sync {
  animation: modem-sync-pulse 0.32s infinite alternate;
}

.led-bulb.blink-data {
  animation: modem-data-flicker 0.14s steps(2, start) infinite;
}

.led-bulb.pulse-hit {
  background: #86efac !important;
  box-shadow: 0 0 11px #4ade80, 0 0 4px #ffffff !important;
}

@keyframes modem-sync-pulse {
  0% {
    background: #1e293b;
    box-shadow: none;
  }
  100% {
    background: #f59e0b;
    box-shadow: 0 0 8px #f59e0b;
  }
}

@keyframes modem-data-flicker {
  0% {
    background: #4ade80;
    box-shadow: 0 0 10px #22c55e;
  }
  50% {
    background: #14532d;
    box-shadow: none;
  }
  100% {
    background: #86efac;
    box-shadow: 0 0 12px #4ade80;
  }
}

.led-tag {
  font-size: 0.56rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #94a3b8;
}

/* INDICADORES Y TRADUCTOR DE DISQUETES 3½" */
.live-stats-group {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.stat-chip {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.2rem 0.55rem;
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  font-variant-numeric: tabular-nums;
}

.floppy-chip {
  border-color: rgba(56, 189, 248, 0.35);
  background: rgba(2, 132, 199, 0.12);
}

.stat-label {
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
}

.stat-value {
  font-size: 0.84rem;
  color: #f8fafc;
}

/* BANNER DESPLEGABLE DE CONCIENTIZACIÓN DEL TIEMPO */
.time-awareness-banner {
  background: linear-gradient(90deg, rgba(245, 158, 11, 0.16), rgba(2, 132, 199, 0.18));
  border-bottom: 1px solid rgba(245, 158, 11, 0.4);
  padding: 0.55rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  box-sizing: border-box;
  animation: banner-slide-down 0.35s ease;
}

.workspace-grid.compare-mode .time-awareness-banner {
  min-height: 88px;
}

.time-awareness-banner.spacer-slot {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  border-bottom-color: var(--border);
}

@keyframes banner-slide-down {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.awareness-badge {
  background: rgba(245, 158, 11, 0.22);
  border: 1px solid rgba(245, 158, 11, 0.5);
  color: #fde68a;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  white-space: nowrap;
}

.awareness-text {
  margin: 0;
  font-size: 0.8rem;
  color: #fef3c7;
  line-height: 1.35;
}

.progress-strip {
  height: 4px;
  background: #0f172a;
  width: 100%;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-strong), var(--success));
  transition: width 0.25s ease;
}

/* CONTENEDOR DEL VISOR Y OVERLAY DE NEGOCIACIÓN DEL MÓDEM */
.iframe-container {
  position: relative;
  height: 490px;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
}

.iframe-container iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

.handshake-overlay {
  position: absolute;
  inset: 0;
  background: rgba(9, 13, 22, 0.92);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  padding: 1.5rem;
}

.handshake-card {
  max-width: 440px;
  width: 100%;
  background: #111827;
  border: 1px solid #38bdf8;
  border-radius: 12px;
  padding: 1.4rem 1.6rem;
  text-align: center;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
}

.handshake-icon {
  font-size: 2rem;
  margin-bottom: 0.4rem;
}

.handshake-card h3 {
  margin: 0 0 0.45rem 0;
  font-size: 1.02rem;
  color: #f8fafc;
}

.handshake-card p {
  margin: 0 0 0.9rem 0;
  font-size: 0.82rem;
  color: #cbd5e1;
  line-height: 1.45;
}

.handshake-bar {
  height: 6px;
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 0.45rem;
}

.handshake-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #f59e0b, #38bdf8);
  transition: width 0.12s linear;
}

.handshake-countdown {
  font-size: 0.75rem;
  font-weight: 700;
  color: #7dd3fc;
  font-variant-numeric: tabular-nums;
}

.narrative-footer {
  padding: 0.55rem 1rem;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.8rem;
}

.narrative-status {
  font-weight: 600;
  color: #e2e8f0;
}

.narrative-context {
  color: var(--text-muted);
}

.workspace-grid.compare-mode .narrative-footer {
  min-height: 54px;
}

/* TARJETA EDITORIAL DE ANCLAJE TERRITORIAL Y HUMANO */
.story-card {
  padding: 0.75rem 1rem;
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.55), rgba(15, 23, 42, 0.8));
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}

.story-meta {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
  font-size: 0.72rem;
}

.story-pin {
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.story-location {
  color: #bae6fd;
  font-weight: 600;
}

.story-title {
  margin: 0.1rem 0 0 0;
  font-size: 0.92rem;
  color: #f8fafc;
  font-family: Georgia, "Times New Roman", serif;
}

.story-quote {
  margin: 0;
  font-size: 0.82rem;
  color: #cbd5e1;
  line-height: 1.5;
  font-style: italic;
}

.methodology-footnote {
  padding: 0.6rem 1.5rem 0.95rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
}

.hidden {
  display: none !important;
}

@media (max-width: 1180px) {
  .era-cards-row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  .era-selectors-wrapper.compare-layout,
  .workspace-grid.compare-mode {
    grid-template-columns: 1fr;
  }
  .era-cards-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}