/* Percentage Calculator - #3d85c6 */
:root {
  --pct-brand: #3d85c6;
  --pct-brand-dark: #2c6396;
  --pct-brand-light: #eaf4fb;
  --pct-brand-border: #b6d5f2;
  --pct-bg: #f4f8fc;
  --pct-surface: rgba(255, 255, 255, 0.95);
  --pct-solid: #ffffff;
  --pct-text: #1a1a1a;
  --pct-muted: #64748b;
  --pct-shadow: 0 10px 28px rgba(61, 133, 198, 0.12);
  --pct-radius: 16px;
  --pct-font: 'DM Sans', system-ui, sans-serif;
}

#tool-main {
  font-family: var(--pct-font);
  color: var(--pct-text);
  background: var(--pct-bg);
  background-image: radial-gradient(ellipse 70% 40% at 50% -5%, rgba(61, 133, 198, 0.1), transparent);
  padding-bottom: 16px;
}

.pct-wrap {
  max-width: 520px;
  margin: 0 auto;
  padding: 12px 16px 8px;
}

.pct-hero {
  text-align: center;
  margin-bottom: 12px;
}

.pct-hero h1 {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--pct-brand);
  margin: 0 0 4px;
}

.pct-hero p {
  color: var(--pct-muted);
  font-size: 0.85rem;
  margin: 0;
}

.pct-glass {
  background: var(--pct-surface);
  border: 1px solid var(--pct-brand-border);
  border-radius: var(--pct-radius);
  box-shadow: var(--pct-shadow);
  padding: 14px 16px;
  margin-bottom: 10px;
}

.pct-modes {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.pct-modes button {
  padding: 7px 11px;
  border-radius: 999px;
  border: 1px solid var(--pct-brand-border);
  background: var(--pct-solid);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--pct-brand-dark);
  cursor: pointer;
}

.pct-modes button:hover {
  background: var(--pct-brand-light);
}

.pct-modes button.active {
  background: var(--pct-brand);
  border-color: var(--pct-brand);
  color: #fff;
}

.pct-field {
  margin-bottom: 10px;
}

.pct-field label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--pct-brand-dark);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.pct-input {
  width: 100%;
  padding: 10px 12px;
  font-size: 1rem;
  font-weight: 600;
  border: 1.5px solid var(--pct-brand-border);
  border-radius: 10px;
  background: #f7fbff;
  box-sizing: border-box;
}

.pct-input:focus {
  border-color: var(--pct-brand);
  outline: none;
  box-shadow: 0 0 0 2px var(--pct-brand-light);
}

.pct-select {
  width: 100%;
  padding: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1.5px solid var(--pct-brand-border);
  border-radius: 10px;
  background: #f7fbff;
}

.pct-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}

.pct-chips button {
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--pct-brand-border);
  background: var(--pct-solid);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--pct-brand-dark);
  cursor: pointer;
}

.pct-chips button:hover {
  background: var(--pct-brand-light);
}

.pct-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.pct-form-grid .pct-field--full {
  grid-column: 1 / -1;
}

.pct-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.pct-btn {
  padding: 11px 16px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.92rem;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.pct-btn--primary {
  flex: 1;
  background: var(--pct-brand);
  color: #fff;
  box-shadow: 0 4px 14px rgba(61, 133, 198, 0.3);
}

.pct-btn--primary:hover {
  background: var(--pct-brand-dark);
}

.pct-btn--ghost {
  background: var(--pct-solid);
  border: 1px solid var(--pct-brand-border);
  color: var(--pct-muted);
  padding-left: 14px;
  padding-right: 14px;
}

.pct-btn--sm {
  padding: 7px 14px;
  font-size: 0.8rem;
}

.pct-result[hidden] {
  display: none !important;
}

.pct-result {
  text-align: center;
  animation: pctIn 0.3s ease;
}

@keyframes pctIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.pct-result-headline {
  font-size: 0.85rem;
  color: var(--pct-muted);
  margin: 0 0 6px;
}

.pct-result-answer {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--pct-brand);
  margin-bottom: 8px;
}

.pct-result-formula {
  font-size: 0.8rem;
  color: var(--pct-brand-dark);
  background: var(--pct-brand-light);
  padding: 10px 12px;
  border-radius: 10px;
  margin-bottom: 8px;
  line-height: 1.4;
  word-break: break-word;
}

.pct-result-extra {
  font-size: 0.82rem;
  color: var(--pct-muted);
  margin-bottom: 10px;
}

.pct-toast {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.25s, transform 0.25s;
}

.pct-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.pct-toast--success { background: #166534; color: #fff; }
.pct-toast--warning { background: #b45309; color: #fff; }
.pct-toast--error { background: #b91c1c; color: #fff; }

@media (max-width: 400px) {
  .pct-form-grid {
    grid-template-columns: 1fr;
  }
}