.epc-wrapper {
  --epc-bg-card: var(--bg-surface, #fff);
  --epc-bg-input: var(--bg-muted, #f5f5f7);
  --epc-text-main: var(--text-base, #1d1d1f);
  --epc-text-muted: var(--text-muted, #86868b);
  --epc-accent: var(--color-primary, #2563eb);
  --epc-accent-hover: var(--color-primary-hover, #1d4ed8);
  --epc-border: var(--border-base, #e5e5ea);
  --epc-danger-base: #ef4444;
  --epc-danger-bg: #fee2e2;
  --epc-danger-text: #b91c1c;
  --epc-success-base: #10b981;
  --epc-success-bg: #d1fae5;
  --epc-success-text: #047857;
  --epc-warning-base: #f59e0b;
  --epc-warning-bg: #fef3c7;
  --epc-warning-text: #b45309;
  --epc-sim-bg: #0f172a;
  --epc-radius: 12px;
  --epc-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --epc-shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);

  color: var(--epc-text-main);
  background: var(--epc-bg-card);
  border-radius: var(--epc-radius);
  box-shadow: var(--epc-shadow);
  border: 1px solid var(--epc-border);
  padding: 1.5rem;
  transition: all 0.3s ease;
}





.epc-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .epc-layout {
    grid-template-columns: 1fr 1fr;
  }
}

.epc-section {
  margin-bottom: 2rem;
}

.epc-section-title {
  margin: 0 0 1.25rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--epc-text-main);
}

.epc-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.epc-control-group {
  margin-bottom: 1rem;
}

.epc-label {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--epc-text-main);
}

.epc-info-icon {
  width: 14px;
  height: 14px;
  color: var(--epc-text-muted);
  cursor: help;
}

.epc-input, .epc-select {
  width: 100%;
  padding: 0.625rem 0.75rem;
  border: 1px solid var(--epc-border);
  border-radius: 8px;
  background: var(--epc-bg-input);
  color: var(--epc-text-main);
  font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}

.epc-input:focus, .epc-select:focus {
  outline: none;
  border-color: var(--epc-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}



.epc-btn-primary {
  width: 100%;
  padding: 0.75rem;
  background: var(--epc-accent);
  color: var(--text-inverted, #fff);
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.epc-btn-primary:hover {
  background: var(--epc-accent-hover);
}



.epc-btn-secondary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--epc-bg-card);
  color: var(--epc-text-main);
  border: 1px solid var(--epc-border);
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  box-shadow: var(--epc-shadow-sm);
}

.epc-icon {
  width: 16px;
  height: 16px;
}

.epc-cards-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1rem;
}

.epc-card {
  background: var(--epc-bg-card);
  border: 1px solid var(--epc-border);
  border-radius: 8px;
  padding: 1rem;
  box-shadow: var(--epc-shadow-sm);
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  opacity: 0.5;
}

.epc-card:hover {
  border-color: var(--epc-text-muted);
  opacity: 0.8;
}

.epc-card.active {
  border-color: var(--epc-accent);
  box-shadow: 0 0 0 2px var(--epc-accent), var(--epc-shadow-sm);
  background: color-mix(in srgb, var(--epc-accent) 5%, var(--epc-bg-card));
  opacity: 1;
}

.epc-card.status-perfect { border-left: 4px solid var(--epc-success-base); }
.epc-card.status-warning { border-left: 4px solid var(--epc-warning-base); }
.epc-card.status-danger { border-left: 4px solid var(--epc-danger-base); }

.epc-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.epc-card-title {
  font-weight: 600;
  font-size: 0.875rem;
}

.epc-card-remove {
  background: none;
  border: none;
  color: var(--epc-text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
}

.epc-card-remove:hover {
  color: var(--epc-danger-base);
  background: var(--epc-bg-input);
}

.epc-card-results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--epc-border);
}

.epc-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.epc-stat-val {
  font-size: 1.25rem;
  font-weight: 700;
}

.epc-stat-lbl {
  font-size: 0.75rem;
  color: var(--epc-text-muted);
}

/* Simulator */
.epc-simulator-panel {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.epc-sim-container {
  width: 100%;
  aspect-ratio: 1;
  max-width: 400px;
  margin: 0 auto;
  border-radius: 50%;
  background: var(--epc-sim-bg);
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 0 50px rgba(255,255,255,0.1), 0 10px 25px rgba(0,0,0,0.2);
  border: 4px solid var(--epc-border);
}



.epc-sim-canvas {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.epc-sim-target {
  position: absolute;
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.epc-target-moon {
  background-image: radial-gradient(circle at 30% 30%, #e0e0e0, #888);
  border-radius: 50%;
}

.epc-target-saturn {
  background-image: radial-gradient(ellipse at center, #ffd27f 30%, transparent 70%);
  position: relative;
}

.epc-target-saturn::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) rotate(15deg);
  width: 250%; height: 20%;
  border-radius: 50%;
  border: 2px solid #e5c488;
}



.epc-target-pleiades {
  background-image: radial-gradient(circle, #fff 1px, transparent 1px);
  background-size: 20% 20%;
  background-position: 10% 10%, 30% 40%, 60% 20%, 80% 50%, 50% 70%, 20% 80%;
}

.epc-target-andromeda {
  background-image: radial-gradient(ellipse at center, rgba(255,255,255,0.8) 5%, rgba(255,255,255,0.2) 30%, transparent 60%);
  border-radius: 50%;
  transform: rotate(35deg);
}

.epc-target-m13 {
  background-image: radial-gradient(circle at center, rgba(255,255,255,1) 5%, rgba(255,255,255,0.6) 15%, rgba(255,255,255,0.2) 35%, transparent 60%);
  border-radius: 50%;
}

.epc-sim-noise {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI0IiBoZWlnaHQ9IjQiPjxyZWN0IHdpZHRoPSI0IiBoZWlnaHQ9IjQiIGZpbGw9IiNmZmYiIGZpbGwtb3BhY2l0eT0iMC4wNSIvPjwvc3ZnPg==');
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.epc-sim-mask {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.3);
  box-shadow: 0 0 0 9999px rgba(0,0,0,0.6);
  pointer-events: none;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}



.epc-feedback-card {
  padding: 1rem;
  border-radius: 8px;
  font-weight: 500;
  line-height: 1.4;
  display: none;
}

.epc-feedback-card.show {
  display: block;
  animation: epc-fade-in 0.3s ease;
}

.epc-feedback-card.perfect { 
  background: var(--epc-success-bg); 
  color: var(--epc-success-text); 
  border: 1px solid var(--epc-success-base); 
}
.epc-feedback-card.warning { 
  background: var(--epc-warning-bg); 
  color: var(--epc-warning-text); 
  border: 1px solid var(--epc-warning-base); 
}
.epc-feedback-card.danger { 
  background: var(--epc-danger-bg); 
  color: var(--epc-danger-text); 
  border: 1px solid var(--epc-danger-base); 
}



.epc-cta-box {
  padding: 1.25rem;
  background: var(--epc-bg-card);
  border: 1px solid var(--epc-border);
  border-radius: 8px;
  text-align: center;
  font-weight: 600;
  color: var(--epc-text-main);
  display: none;
}

.epc-cta-box.show {
  display: block;
}

.epc-cta-box.warning-border {
  border-color: var(--epc-warning-base);
  background: var(--epc-warning-bg);
  color: var(--epc-warning-text);
}

@keyframes epc-fade-in {
  from {
    opacity: 0;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}