:root {
  --bg: #f8f9fa; /* Light page background */
  --panel: #ffffff; /* Cards / panels */
  --muted: #6b7280; /* Muted text */
  --text: #1f2937; /* Main text */
  --accent: #4f46e5; /* Primary accent */
  --accent-2: #3b82f6; /* Secondary accent */
  --ring: rgba(79, 70, 229, 0.25); /* Focus ring */
  --ok: #10b981; /* Success */
  --warn: #f59e0b; /* Warning */
  --danger: #ef4444; /* Error */
}

* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu,
    Cantarell, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji",
    "Segoe UI Emoji";
  color: var(--text);
  background: var(--bg);
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: 0.2px;
}
.logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid;
  place-items: center;
  color: white;
  font-weight: 900;
  box-shadow: 0 10px 30px rgba(139, 92, 246, 0.35);
}
.actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.btn {
  appearance: none;
  border: 0;
  border-radius: 12px;
  padding: 10px 14px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.08s ease, box-shadow 0.2s ease, background 0.2s;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: 0 6px 15px rgba(79, 70, 229, 0.2);
}

.btn.ghost {
  background: transparent;
  border: 1px solid #d1d5db;
  color: var(--text);
}

.btn:active {
  transform: translateY(1px);
}

.btn.small {
  padding: 8px 10px;
  font-size: 13px;
  border-radius: 10px;
}

.hero {
  margin: 28px 0;
  padding: 32px;
  border-radius: 18px;
  background: #ffffff;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }
}

.hero h1 {
  font-size: clamp(28px, 2.4vw + 14px, 42px);
  margin: 0 0 8px;
  color: var(--text);
}

.hero p {
  margin: 0;
  color: var(--muted);
}

.pill {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  background: #e0e7ff;
  color: #4338ca;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}

.card {
  background: var(--panel);
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
}

.form {
  grid-column: span 5;
}

.results {
  grid-column: span 7;
}

@media (max-width: 1100px) {
  .form,
  .results {
    grid-column: span 12;
  }
}

.field {
  margin-bottom: 14px;
}

.field label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
}

.input,
select,
textarea {
  width: 100%;
  background: #f9fafb;
  color: var(--text);
  border: 1px solid #d1d5db;
  border-radius: 12px;
  padding: 10px 12px;
  outline: none;
  transition: box-shadow 0.2s, border 0.2s;
}

.input:focus,
select:focus,
textarea:focus {
  box-shadow: 0 0 0 4px var(--ring);
  border-color: var(--accent);
}

.tagbox {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  padding: 6px 12px;
  background: #e5e7eb;
  border-radius: 999px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text);
  border: 1px solid #d1d5db;
  transition: all 0.2s;
}

.tag.selected {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.hint {
  color: var(--muted);
  font-size: 12px;
  margin-top: 6px;
}

.range-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}
.range-wrap input[type="range"] {
  width: 100%;
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}
.result-count {
  color: var(--muted);
  font-size: 13px;
}
.idea-list {
  display: grid;
  gap: 12px;
}

.idea {
  background: #ffffff;
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
}

.idea h3 {
  margin: 0 0 8px;
  color: var(--accent);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  background: #e0e7ff;
  color: #4338ca;
  padding: 4px 8px;
  border-radius: 999px;
}
.meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 8px 0 10px;
}

.idea .grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
@media (max-width: 700px) {
  .idea .grid-2 {
    grid-template-columns: 1fr;
  }
}

.actions-row {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 24px;
  border: 1px dashed #26324a;
  border-radius: 14px;
}

footer {
  margin: 28px 0;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
}

.toggle {
  position: relative;
  width: 50px;
  height: 28px;
  background: #e5e7eb;
  border-radius: 999px;
  border: 1px solid #26324a;
  cursor: pointer;
}

.knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  transition: left 0.2s ease;
}
.toggle.active .knob {
  left: 25px;
}

.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid #24324f;
  padding: 10px 12px;
  border-radius: 10px;
  opacity: 0;
  transform: translateY(10px);
  transition: 0.2s;
  pointer-events: none;
}
.toast.show {
  opacity: 1;
  transform: translateY(0);
}

footer.footer {
  background: #f3f4f6;
  color: #6b7280;
  padding: 20px 0;
  text-align: center;
  font-size: 0.9rem;
}

footer.footer a {
  color: var(--accent-2);
  text-decoration: none;
}

footer.footer a:hover {
  text-decoration: underline;
}

footer.footer .credits {
  margin-top: 5px;
  font-size: 0.8rem;
  color: #9ca3af;
}