/* ============================================================
   Histórico de intentos — Tu evolución
   ============================================================ */

.historico-main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 22px 60px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

/* ── Hero con stats ─────────────────────────────────────── */
.historico-hero {
  background: linear-gradient(135deg, var(--primary) 0%, #0d2840 100%);
  border-radius: var(--r-md);
  padding: 32px 28px 36px;
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 37, 69, .18);
}
.historico-hero-inner {
  text-align: center;
}
.historico-hero-title {
  font-family: var(--font-body);
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 900;
  margin: 0 0 10px;
  letter-spacing: -0.5px;
}
.historico-hero-stats {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.78);
  margin: 0;
  font-weight: 500;
}

/* ── Tarjetas blancas (chart + lista) ───────────────────── */
.historico-card {
  background: #fff;
  border: 1px solid var(--outline-variant);
  border-radius: var(--r-md);
  padding: 24px 24px 22px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}
.historico-card-title {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 18px;
}

/* ── Chart SVG ──────────────────────────────────────────── */
.historico-chart-wrap {
  position: relative;
  width: 100%;
}
.historico-chart {
  width: 100%;
  height: clamp(280px, 42vh, 460px);
  display: block;
}
.historico-chart .grid-line {
  stroke: rgba(0, 37, 69, 0.08);
  stroke-width: 1;
  stroke-dasharray: 4 4;
}
.historico-chart .grid-label {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  fill: var(--on-surface-variant);
  text-anchor: end;
}
.historico-chart .x-label {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  fill: var(--on-surface-variant);
  text-anchor: middle;
}
.historico-chart .line-solid {
  fill: none;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.historico-chart .line-dashed {
  fill: none;
  stroke-width: 2;
  stroke-dasharray: 5 6;
  stroke-linecap: round;
  opacity: 0.55;
}
.historico-chart .chart-dot {
  cursor: pointer;
  transition: r .12s, transform .12s;
  transform-origin: center;
  transform-box: fill-box;
}
.historico-chart .chart-dot:hover {
  r: 7;
}

.historico-tooltip {
  position: absolute;
  transform: translate(-50%, -100%);
  background: var(--primary);
  color: #fff;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 12.5px;
  pointer-events: none;
  box-shadow: 0 4px 14px rgba(0, 0, 0, .25);
  white-space: nowrap;
  z-index: 10;
}
.historico-tooltip[hidden] { display: none; }
.historico-tooltip .tooltip-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 2px;
}
.historico-tooltip .tooltip-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}
.historico-tooltip .tooltip-pct {
  font-family: var(--font-mono);
  font-weight: 800;
}
.historico-tooltip .tooltip-meta {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.75);
}

/* ── Legend (chips toggle) ──────────────────────────────── */
.historico-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 18px;
}
.historico-legend-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1.5px solid var(--outline-variant);
  background: #fff;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
  color: var(--on-surface);
  cursor: pointer;
  transition: opacity .12s, transform .12s, border-color .12s;
}
.historico-legend-chip:hover { transform: translateY(-1px); }
.historico-legend-chip.is-off {
  opacity: 0.45;
  text-decoration: line-through;
}
.historico-legend-chip .legend-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}

.historico-chart-note {
  text-align: center;
  font-size: 12px;
  color: var(--on-surface-variant);
  font-style: italic;
  margin: 14px 0 0;
}

/* ── Lista de intentos ──────────────────────────────────── */
.historico-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.hist-card {
  background: var(--surface-container-lowest, #fff);
  border: 1px solid var(--outline-variant);
  border-radius: var(--r-md);
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color .12s, box-shadow .12s;
}
.hist-card:hover {
  border-color: rgba(0, 37, 69, .28);
  box-shadow: 0 2px 8px rgba(0, 37, 69, .08);
}
.hist-card-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.hist-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  flex: 1;
  min-width: 0;
}
.hist-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 800;
  background: var(--primary);
  color: #fff;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.4px;
}
.hist-when {
  font-size: 13px;
  color: var(--on-surface-variant);
  font-weight: 600;
}
.hist-tipo {
  font-size: 13px;
  color: var(--on-surface);
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 6px;
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
}
.hist-tag {
  font-size: 12px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.3px;
}
.hist-tag-full {
  background: var(--secondary-container, #fdb747);
  color: #4a3300;
}

.hist-card-actions {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
}
.hist-score {
  font-family: var(--font-body);
  font-size: 13.5px;
  color: var(--on-surface-variant);
  font-weight: 600;
}
.hist-score strong {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 900;
  color: var(--on-surface);
  margin-right: 4px;
}
.hist-repeat {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1.5px solid var(--outline-variant);
  background: #fff;
  color: var(--primary);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
  transition: background .12s, transform .12s, border-color .12s;
}
.hist-repeat:hover {
  background: var(--surface-container-low);
  border-color: var(--primary);
  transform: translateY(-1px);
}
.hist-review {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1.5px solid var(--primary);
  background: var(--primary-05, rgba(0,37,69,0.05));
  color: var(--primary);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
  transition: background .12s, transform .12s, border-color .12s;
}
.hist-review:hover {
  background: var(--primary-10, rgba(0,37,69,0.1));
  transform: translateY(-1px);
}

.hist-subjects {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 4px;
}
.hist-subj-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1.5px solid var(--subj-main, var(--outline-variant));
  background: #fff;
  font-family: var(--font-body);
  font-size: 12.5px;
  color: var(--on-surface);
}
.hist-subj-icon { font-size: 14px; }
.hist-subj-name { font-weight: 700; }
.hist-subj-frac {
  font-family: var(--font-mono);
  color: var(--on-surface-variant);
  font-weight: 600;
}
.hist-subj-pct {
  font-family: var(--font-mono);
  font-weight: 900;
  color: var(--subj-main, var(--on-surface));
}

/* ── Empty state ────────────────────────────────────────── */
.historico-empty {
  text-align: center;
  padding: 60px 20px;
  background: #fff;
  border: 1px solid var(--outline-variant);
  border-radius: var(--r-md);
}
.historico-empty-icon {
  font-size: 60px;
  margin-bottom: 14px;
}
.historico-empty-title {
  font-family: var(--font-body);
  font-size: 22px;
  font-weight: 800;
  color: var(--on-surface);
  margin: 0 0 8px;
}
.historico-empty-text {
  font-size: 14px;
  color: var(--on-surface-variant);
  margin: 0 0 18px;
}
.historico-empty-cta {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
  transition: background .12s, transform .12s;
}
.historico-empty-cta:hover {
  background: #003a6c;
  transform: translateY(-1px);
}

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 720px) {
  .historico-main { padding: 18px 14px 40px; gap: 16px; }
  .historico-hero { padding: 24px 18px 26px; }
  .historico-card { padding: 18px 14px 16px; }
  .historico-card-title { font-size: 11px; }
  .hist-card { padding: 12px 14px; }
  .hist-card-actions { margin-left: 0; flex: 1; justify-content: space-between; }
  .historico-chart { height: 280px; }
}