* {
  box-sizing: border-box;
}

/* ===== VARIABLES POR DEFECTO (MODO OSCURO JDM) ===== */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --text-primary: #e0e0e0;
  --text-secondary: #b0b0c0;
  --accent-1: #ff2a6d;   /* rosa neón JDM */
  --accent-2: #00d4ff;   /* azul eléctrico */
  --accent-3: #b400ff;   /* púrpura */
  --border-color: #2a2a35;
  --card-bg: #1a1a24;
  --checkbox-bg: #222230;
  --button-bg: #e53e3e;
  --button-hover: #c53030;
}

/* ===== MODO CLARO HORIZON FESTIVAL ===== */
body.light-mode {
  --bg-primary: #f9f7f0;
  --bg-secondary: #ffffff;
  --text-primary: #1a1a1a;
  --text-secondary: #4a4a4a;
  --accent-1: #ff7b00;   /* naranja Horizon */
  --accent-2: #ffc300;   /* amarillo */
  --accent-3: #ff006e;   /* rosa vibrante */
  --border-color: #e0d6b0;
  --card-bg: #fffcf5;
  --checkbox-bg: #f0ede5;
  --button-bg: #ff7b00;
  --button-hover: #e56c00;
}

body {
  font-family: system-ui, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  margin: 0;
  padding: 20px;
  color: var(--text-primary);
  transition: background-color 0.3s, color 0.2s;
}

.container {
  max-width: 850px;
  margin: 0 auto;
  background: var(--bg-primary);
  border-radius: 8px;
  padding: 20px;
}

h2 {
  margin-top: 0;
}

.dataset-status {
  background: var(--bg-secondary);
  padding: 8px;
  border-radius: 4px;
  margin-bottom: 15px;
  font-size: 13px;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.filters-panel {
  background: var(--card-bg);
  padding: 15px;
  border-radius: 12px;
  margin-bottom: 20px;
  border: 1px solid var(--border-color);
}

.filters-panel h4 {
  margin-top: 0;
  margin-bottom: 15px;
  color: var(--accent-1);
}

.filters-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  font-size: 13px;
}

.filter-group {
  display: flex;
  flex-direction: column;
}

.filter-group label {
  font-weight: bold;
  margin-bottom: 4px;
  color: var(--text-secondary);
}

.checkbox-scroll {
  max-height: 100px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  padding: 5px;
  border-radius: 8px;
  background: var(--checkbox-bg);
}

.inline-scroll {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-height: 100px;
}

.inline-scroll label {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: normal;
  white-space: nowrap;
  background: var(--checkbox-bg);
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid var(--border-color);
}

.full-width {
  grid-column: span 2;
}

button {
  background: var(--button-bg);
  color: white;
  border: none;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: bold;
  border-radius: 40px;
  cursor: pointer;
  width: 100%;
  transition: background 0.2s ease, transform 0.1s;
}
button:hover {
  background: var(--button-hover);
  transform: scale(1.02);
}
button:disabled {
  background: #a0aec0;
  cursor: not-allowed;
  transform: none;
}

.result-box {
  margin-top: 20px;
  background: var(--card-bg);
  padding: 15px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  min-height: 180px;
  position: relative;
  color: var(--text-primary);
}
.result-box h3 {
  margin-top: 0;
  color: var(--accent-2);
}
.result-box p {
  margin: 8px 0;
}

.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  backdrop-filter: blur(4px);
}
.spinner {
  border: 4px solid var(--border-color);
  border-top: 4px solid var(--accent-1);
  border-radius: 50%;
  width: 30px;
  height: 30px;
  animation: spin 0.6s linear infinite;
  margin-bottom: 10px;
}
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
.loading-overlay span {
  font-weight: bold;
  color: var(--accent-1);
  letter-spacing: 1px;
  animation: pulse 0.3s infinite alternate;
}
@keyframes pulse {
  0% { opacity: 0.4; transform: scale(0.98); }
  100% { opacity: 1; transform: scale(1.02); }
}

/* Ajustes específicos para el botón de cambio de tema */
#themeToggleBtn {
  width: auto;
  background: var(--accent-1);
  padding: 6px 16px;
  margin-left: 10px;
}

.points-bar {
  white-space: nowrap;
  flex-wrap: nowrap;
}
.points-bar span {
  white-space: nowrap;
}

/* Switch toggle para modo estricto */
.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}
.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: 0.3s;
  border-radius: 24px;
}
.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
}
input:checked + .slider {
  background-color: var(--accent-1);
}
input:checked + .slider:before {
  transform: translateX(20px);
}

.checkbox-scroll label {
  display: block !important;
  margin-bottom: 2px;
}