/* ============================================================
   BRAINSTORM GENERATOR — Sandbox AI SaaS
   Scoped under .brn-tool. Relies on tokens.css / animations.css /
   dashboard.css / forms.css / glass.css already being loaded.

   Enhancements in this pass:
   - prefers-reduced-motion support across every animation
   - skeleton loading cards instead of a bare spinner
   - richer hover/active/focus states, keyboard-visible rings
   - creativity cards get a proper checked indicator
   - chip input polish + invalid shake feedback
   - idea card depth, staggered reveal, sticky score bar color by tier
   - print stylesheet so results can be exported/printed cleanly
   - small dark/light contrast safety nets
   ============================================================ */

.brn-tool {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  max-width: 980px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-4) var(--space-16);
}

/* ── HERO ──────────────────────────────────────────────────── */

.brn-hero {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-8) var(--space-2) var(--space-2);
}

.brn-hero-copy {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.brn-hero-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  background: var(--surface-2);
  border: 1px solid var(--border-1);
  color: var(--accent);
  transition: transform var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
}

.brn-hero:hover .brn-hero-icon {
  transform: rotate(-6deg) scale(1.05);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.brn-hero-title {
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  letter-spacing: -0.02em;
  color: var(--text);
  margin: 0 0 var(--space-1);
}

.brn-gradient-text {
  background: linear-gradient(90deg, var(--ink-0), var(--ink-3), var(--ink-0));
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: brnGradientShift 4s linear infinite;
}

@keyframes brnGradientShift {
  0%   { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

.brn-hero-sub {
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  color: var(--text-soft);
  margin: 0 0 var(--space-2);
}

.brn-hero-desc {
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0;
  max-width: 640px;
}

.brn-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  width: fit-content;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--accent-glow);
  border: 1px solid var(--border-1);
  color: var(--accent);
  font-size: var(--text-xs);
  font-weight: var(--weight-semi);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.brn-badge svg {
  animation: brnSparklePulse 2.4s var(--ease) infinite;
}

@keyframes brnSparklePulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.55; transform: scale(0.85); }
}

/* Feature pills (present in markup, not previously styled) */

.feature-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}

.feature-pill {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--surface-1);
  border: 1px solid var(--border-0);
  color: var(--text-muted);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
}

.brn-examples {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.brn-examples-label {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-right: var(--space-1);
}

.brn-example-chip {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--surface-1);
  border: 1px solid var(--border-0);
  color: var(--text-soft);
  font-size: var(--text-sm);
  cursor: pointer;
  transition: background var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease),
    transform var(--dur-fast) var(--ease), color var(--dur-base) var(--ease);
}

.brn-example-chip:hover {
  background: var(--surface-2);
  border-color: var(--border-1);
  color: var(--text);
  transform: translateY(-1px);
}

.brn-example-chip:active {
  transform: translateY(0) scale(0.97);
}

/* ── INPUT CARD ────────────────────────────────────────────── */

.brn-input-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  padding: var(--space-8);
  border-radius: var(--radius-2xl);
}

.brn-field-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

/* Char counter warning state safety net (in case forms.css doesn't cover it) */
.char-counter.warning .count { color: var(--warning); }
.char-counter.danger .count  { color: var(--error); font-weight: var(--weight-semi); }

/* Invalid shake feedback for form errors */
.brn-shake {
  animation: brnShake 0.35s var(--ease);
}

@keyframes brnShake {
  0%, 100% { transform: translateX(0); }
  20%      { transform: translateX(-4px); }
  40%      { transform: translateX(4px); }
  60%      { transform: translateX(-3px); }
  80%      { transform: translateX(3px); }
}

/* ── CREATIVITY CARDS ──────────────────────────────────────── */

.brn-creativity-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.brn-creativity-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--surface-0);
  border: 1px solid var(--border-1);
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: background var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease),
    transform var(--dur-fast) var(--ease), box-shadow var(--dur-base) var(--ease);
}

.brn-creativity-card:hover {
  background: var(--surface-1);
  transform: translateY(-2px);
}

.brn-creativity-card:active {
  transform: translateY(0) scale(0.99);
}

.brn-creativity-card.is-active {
  background: var(--accent-glow);
  border-color: var(--border-focus);
  box-shadow: 0 0 0 1px var(--border-focus) inset;
}

.brn-creativity-card.is-active::after {
  content: '';
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round' d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/10px no-repeat;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round' d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/10px no-repeat;
  animation: brnCheckIn var(--dur-slow) var(--ease-spring) both;
}

@keyframes brnCheckIn {
  from { opacity: 0; transform: scale(0.4); }
  to   { opacity: 1; transform: scale(1); }
}

.brn-creativity-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-md);
  background: var(--surface-2);
  color: var(--accent);
}

.brn-creativity-title {
  font-size: var(--text-base);
  font-weight: var(--weight-semi);
}

.brn-creativity-desc {
  font-size: var(--text-xs);
  color: var(--text-muted);
  line-height: 1.4;
}

/* ── SLIDER ────────────────────────────────────────────────── */

.brn-slider-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2);
}

.brn-slider-value {
  font-size: var(--text-sm);
  font-weight: var(--weight-semi);
  color: var(--accent);
  padding: 2px var(--space-2);
  border-radius: var(--radius-pill);
  background: var(--surface-2);
  min-width: 28px;
  text-align: center;
  transition: transform var(--dur-fast) var(--ease);
}

.brn-slider-value.is-bumped {
  transform: scale(1.15);
}

.brn-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--accent) var(--brn-slider-pct, 41%), var(--surface-3) var(--brn-slider-pct, 41%));
  outline: none;
  cursor: pointer;
}

.brn-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur-fast) var(--ease);
}

.brn-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.brn-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  cursor: pointer;
}

.brn-slider::-moz-range-progress {
  background: var(--accent);
  height: 4px;
  border-radius: var(--radius-pill);
}

.brn-slider-scale {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  color: var(--text-muted);
}
.aie-why, .brn-why, .cmg-why, .cl-why, .yts-why {
  --why-card-bg:           rgba(255,255,255,0.035);
  --why-card-bg-hover:     rgba(255,255,255,0.065);
  --why-card-border:       rgba(255,255,255,0.075);
  --why-card-border-hover: rgba(255,255,255,0.14);
  --why-icon-bg:           rgba(255,255,255,0.07);
  --why-icon-border:       rgba(255,255,255,0.10);
  --why-icon-color:        rgba(255,255,255,0.72);
  --why-heading-color:     #ffffff;
  --why-label-color:       rgba(255,255,255,0.92);
  --why-desc-color:        rgba(255,255,255,0.45);
  --why-sub-color:         rgba(255,255,255,0.45);
  --why-radius-card:       14px;
  --why-radius-icon:       9px;
}
 
/* ── Shared card / grid structure (applied via each prefix) ── */
.aie-why-card, .brn-why-card, .cmg-why-card, .cl-why-card, .yts-why-card {
  background: var(--why-card-bg);
  border: 1px solid var(--why-card-border);
  border-radius: var(--why-radius-card);
  padding: 1.3rem 1.15rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}
 
.aie-why-card:hover, .brn-why-card:hover, .cmg-why-card:hover,
.cl-why-card:hover, .yts-why-card:hover {
  background: var(--why-card-bg-hover);
  border-color: var(--why-card-border-hover);
  transform: translateY(-2px);
}
 
.aie-why-icon, .brn-why-icon, .cmg-why-icon, .cl-why-icon, .yts-why-icon {
  width: 34px;
  height: 34px;
  background: var(--why-icon-bg);
  border: 1px solid var(--why-icon-border);
  border-radius: var(--why-radius-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.3rem;
  flex-shrink: 0;
}
 
.aie-why-icon svg, .brn-why-icon svg, .cmg-why-icon svg,
.cl-why-icon svg, .yts-why-icon svg {
  width: 16px;
  height: 16px;
  color: var(--why-icon-color);
}
 
.aie-why-label, .brn-why-label, .cmg-why-label,
.cl-why-label, .yts-why-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--why-label-color);
  margin: 0;
}
 
.aie-why-desc, .brn-why-desc, .cmg-why-desc,
.cl-why-desc, .yts-why-desc {
  font-size: 0.855rem;
  color: var(--why-desc-color);
  line-height: 1.65;
  margin: 0;
}
 
.cmg-why-desc code {
  font-family: monospace;
  font-size: 0.8rem;
  background: rgba(255,255,255,0.07);
  padding: 1px 5px;
  border-radius: 4px;
}
 

/* ── CONSTRAINT CHIPS ──────────────────────────────────────── */

.brn-chip-input {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  background: var(--surface-0);
  border: 1px solid var(--border-1);
  transition: border-color var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
}

.brn-chip-input:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.brn-chip-input.is-full {
  border-color: var(--error);
}

.brn-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.brn-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px var(--space-1) 2px var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--surface-2);
  border: 1px solid var(--border-1);
  font-size: var(--text-sm);
  color: var(--text);
  animation: brnChipIn var(--dur-slow) var(--ease-spring) both;
  transition: background var(--dur-fast) var(--ease);
}

.brn-chip:hover {
  background: var(--surface-3);
}

.brn-chip.is-removing {
  animation: brnChipOut var(--dur-base) var(--ease) both;
}

@keyframes brnChipIn {
  from { opacity: 0; transform: scale(0.85); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes brnChipOut {
  from { opacity: 1; transform: scale(1); }
  to   { opacity: 0; transform: scale(0.7); }
}

.brn-chip-remove {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.brn-chip-remove:hover {
  background: var(--surface-3);
  color: var(--error);
}

.brn-chip-field {
  flex: 1;
  min-width: 160px;
  border: none;
  background: transparent;
  color: var(--text);
  font-family: var(--font);
  font-size: var(--text-base);
  outline: none;
}

.brn-chip-field::placeholder {
  color: var(--text-muted);
}

/* ── ACTIONS ───────────────────────────────────────────────── */

.brn-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding-top: var(--space-2);
  border-top: 1px solid var(--border-0);
}

.brn-generate-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  position: relative;
  overflow: hidden;
}

.brn-generate-btn svg {
  transition: transform var(--dur-base) var(--ease);
}

.brn-generate-btn:not(:disabled):hover svg {
  transform: rotate(20deg) scale(1.1);
}

.brn-generate-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.brn-generate-btn:not(:disabled):active::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.25);
  animation: brnRipple var(--dur-slow) var(--ease-out);
}

@keyframes brnRipple {
  from { opacity: 1; }
  to   { opacity: 0; }
}
.brn-why {
  width: 100%;
  max-width: 860px;
  margin: 4rem auto 2rem;
  padding: 0 1rem;
}
 
.brn-why-heading {
  font-size: clamp(1.4rem, 2.8vw, 1.85rem);
  font-weight: 700;
  color: var(--why-heading-color);
  text-align: center;
  margin: 0 0 0.55rem;
  letter-spacing: -0.022em;
}
 
.brn-why-sub {
  font-size: 0.9rem;
  color: var(--why-sub-color);
  text-align: center;
  max-width: 500px;
  margin: 0 auto 2.25rem;
  line-height: 1.65;
}
 
.brn-why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
 
@media (max-width: 720px) { .brn-why-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .brn-why-grid { grid-template-columns: 1fr; } }
 

/* ── LOADING STATE ─────────────────────────────────────────── */

.brn-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-12) var(--space-6);
  border-radius: var(--radius-2xl);
  text-align: center;
}

.brn-loading-orb {
  position: relative;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brn-orb-core {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 24px var(--accent-glow);
  animation: brnPulse 1.6s var(--ease) infinite;
}

.brn-orb-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--border-1);
  animation: brnRingExpand 1.8s var(--ease-out) infinite;
}

.brn-orb-ring:nth-child(2) {
  animation-delay: 0.6s;
}

@keyframes brnPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(1.2); opacity: 0.7; }
}

@keyframes brnRingExpand {
  0%   { transform: scale(0.4); opacity: 0.8; }
  100% { transform: scale(1.6); opacity: 0; }
}

.brn-loading-text {
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  color: var(--text-soft);
  min-height: 1.4em;
  animation: brnFadeSwap 2.2s var(--ease) infinite;
}

@keyframes brnFadeSwap {
  0%, 8%   { opacity: 0; transform: translateY(4px); }
  20%, 85% { opacity: 1; transform: translateY(0); }
  100%     { opacity: 0; transform: translateY(-4px); }
}

.brn-loading-bar {
  width: 200px;
  height: 3px;
  border-radius: var(--radius-pill);
  background: var(--surface-2);
  overflow: hidden;
}

.brn-loading-bar-fill {
  width: 40%;
  height: 100%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  animation: brnBarSlide 1.4s linear infinite;
}

@keyframes brnBarSlide {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(250%); }
}

/* Skeleton idea cards shown during loading, if used */
.brn-skeleton-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
  width: 100%;
}

.brn-skeleton-card {
  height: 168px;
  border-radius: var(--radius-xl);
  background: linear-gradient(100deg, var(--surface-1) 30%, var(--surface-2) 45%, var(--surface-1) 60%);
  background-size: 250% 100%;
  animation: brnShimmer 1.6s ease-in-out infinite;
}

@keyframes brnShimmer {
  0%   { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}

/* ── EMPTY STATE ───────────────────────────────────────────── */

.brn-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-16) var(--space-6);
  border-radius: var(--radius-2xl);
  border: 1px dashed var(--border-1);
  text-align: center;
  color: var(--text-muted);
}

.brn-empty-illustration {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--surface-1);
  color: var(--text-muted);
  animation: brnFloat 4s var(--ease) infinite;
}

@keyframes brnFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}

.brn-empty-title {
  font-size: var(--text-md);
  font-weight: var(--weight-semi);
  color: var(--text-soft);
  margin: 0;
}

.brn-empty-desc {
  font-size: var(--text-sm);
  margin: 0;
  max-width: 380px;
}

/* ── RESULTS ───────────────────────────────────────────────── */

.brn-results {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.brn-reveal {
  animation: brnRevealIn var(--dur-enter) var(--ease-out) both;
}

@keyframes brnRevealIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.brn-section-title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semi);
  color: var(--text);
  margin: 0 0 var(--space-4);
}

/* Summary */

.brn-summary-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-6);
  border-radius: var(--radius-xl);
}

.brn-summary-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-glow), transparent);
  border: 1px solid var(--border-1);
  color: var(--accent);
}

.brn-summary-title {
  font-size: var(--text-base);
  font-weight: var(--weight-semi);
  margin: 0 0 var(--space-1);
}

.brn-summary-text {
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text-soft);
  margin: 0;
}

/* Ideas grid */

.brn-ideas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-4);
}

.brn-idea-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
  border-radius: var(--radius-xl);
  transition: transform var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease),
    border-color var(--dur-base) var(--ease);
  animation: brnRevealIn var(--dur-enter) var(--ease-out) both;
}

/* Stagger idea card entrance based on grid position */
.brn-ideas-grid .brn-idea-card:nth-child(1) { animation-delay: 0.02s; }
.brn-ideas-grid .brn-idea-card:nth-child(2) { animation-delay: 0.06s; }
.brn-ideas-grid .brn-idea-card:nth-child(3) { animation-delay: 0.10s; }
.brn-ideas-grid .brn-idea-card:nth-child(4) { animation-delay: 0.14s; }
.brn-ideas-grid .brn-idea-card:nth-child(5) { animation-delay: 0.18s; }
.brn-ideas-grid .brn-idea-card:nth-child(6) { animation-delay: 0.22s; }
.brn-ideas-grid .brn-idea-card:nth-child(n+7) { animation-delay: 0.26s; }

.brn-idea-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-1);
}

.brn-idea-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-2);
}

.brn-idea-title {
  font-size: var(--text-base);
  font-weight: var(--weight-semi);
  color: var(--text);
  margin: 0;
}

.brn-difficulty-badge {
  flex-shrink: 0;
  padding: 2px var(--space-2);
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: var(--weight-semi);
  white-space: nowrap;
  text-transform: capitalize;
}

.brn-difficulty-easy {
  background: rgba(34,197,94,0.14);
  color: var(--success);
}

.brn-difficulty-medium {
  background: rgba(245,158,11,0.14);
  color: var(--warning);
}

.brn-difficulty-hard {
  background: rgba(239,68,68,0.14);
  color: var(--error);
}

.brn-idea-desc {
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--text-soft);
  margin: 0;
}

.brn-idea-why {
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--text-muted);
  margin: 0;
}

.brn-idea-why strong {
  color: var(--text-soft);
}

.brn-idea-score {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.brn-score-header {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.brn-progress-bar {
  width: 100%;
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--surface-2);
  overflow: hidden;
}

.brn-progress-fill {
  height: 100%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--accent-dim), var(--accent));
  transition: width var(--dur-slow) var(--ease-out);
}

/* Score tiers: color the fill by strength so scanning the grid is faster */
.brn-progress-fill[data-tier="low"] {
  background: linear-gradient(90deg, var(--error), var(--warning));
}

.brn-progress-fill[data-tier="mid"] {
  background: linear-gradient(90deg, var(--warning), var(--accent));
}

.brn-progress-fill[data-tier="high"] {
  background: linear-gradient(90deg, var(--accent), var(--success));
}

.brn-idea-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-top: var(--space-2);
  border-top: 1px solid var(--border-0);
}

.brn-idea-steps-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semi);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.brn-idea-steps ul {
  margin: 0;
  padding-left: var(--space-5);
  font-size: var(--text-sm);
  color: var(--text-soft);
  line-height: 1.5;
}

/* Best idea */

.brn-best-idea {
  position: relative;
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(245,158,11,0.35);
  background: radial-gradient(circle at top left, rgba(245,158,11,0.12), transparent 60%);
  box-shadow: 0 0 40px rgba(245,158,11,0.08);
}

.brn-best-idea-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin-bottom: var(--space-3);
  padding: 3px var(--space-3);
  border-radius: var(--radius-pill);
  background: rgba(245,158,11,0.16);
  color: var(--warning);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.brn-best-idea-badge svg {
  animation: brnSparklePulse 2.4s var(--ease) infinite;
}

.brn-best-idea-text {
  font-size: var(--text-md);
  line-height: 1.6;
  color: var(--text);
  margin: 0;
}

/* Tips / mistakes */

.brn-tips-grid,
.brn-mistakes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-3);
}

.brn-tip-card,
.brn-mistake-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  transition: transform var(--dur-fast) var(--ease);
}

.brn-tip-card:hover,
.brn-mistake-card:hover {
  transform: translateY(-2px);
}

.brn-tip-card p,
.brn-mistake-card p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--text-soft);
}

.brn-tip-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: var(--radius-md);
  background: rgba(34,197,94,0.14);
  color: var(--success);
}

.brn-mistake-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: var(--radius-md);
  background: rgba(245,158,11,0.14);
  color: var(--warning);
}

/* Final recommendation */

.brn-recommendation {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(34,197,94,0.3);
  background: radial-gradient(circle at top left, rgba(34,197,94,0.1), transparent 60%);
}

.brn-recommendation-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(34,197,94,0.14);
  color: var(--success);
}

.brn-recommendation-text {
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text-soft);
  margin: var(--space-1) 0 0;
}

/* ── STATUS CARD ───────────────────────────────────────────── */

.brn-status-card {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 60;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  max-width: 360px;
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--bg-panel);
  border: 1px solid var(--border-1);
  box-shadow: var(--shadow-lg);
  animation: brnStatusIn var(--dur-slow) var(--ease-spring) both;
}

.brn-status-card.is-leaving {
  animation: brnStatusOut var(--dur-base) var(--ease) both;
}

@keyframes brnStatusIn {
  from { opacity: 0; transform: translateY(12px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes brnStatusOut {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to   { opacity: 0; transform: translateY(8px) scale(0.97); }
}

.brn-status-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
}

.brn-status-success .brn-status-icon {
  background: rgba(34,197,94,0.16);
  color: var(--success);
}

.brn-status-error .brn-status-icon {
  background: rgba(239,68,68,0.16);
  color: var(--error);
}

.brn-status-title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semi);
  color: var(--text);
  margin: 0;
}

.brn-status-body {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin: 2px 0 0;
}

.brn-status-close {
  margin-left: auto;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.brn-status-close:hover {
  background: var(--surface-2);
  color: var(--text);
}

/* ── FOOTER ────────────────────────────────────────────────── */

.brn-footer-note {
  text-align: center;
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin: 0;
}

/* ── FOCUS STATES ──────────────────────────────────────────── */

.brn-tool button:focus-visible,
.brn-tool input:focus-visible,
.brn-tool select:focus-visible,
.brn-tool textarea:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

/* ── REDUCED MOTION ────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  .brn-tool,
  .brn-tool * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ── PRINT ─────────────────────────────────────────────────── */

@media print {
  .brn-hero,
  .brn-input-card,
  .brn-loading,
  .brn-empty-state,
  .brn-status-card,
  .brn-generate-btn,
  .brn-actions {
    display: none !important;
  }

  .brn-results {
    gap: var(--space-4);
  }

  .brn-idea-card,
  .brn-summary-card,
  .brn-best-idea,
  .brn-recommendation,
  .brn-tip-card,
  .brn-mistake-card {
    break-inside: avoid;
    box-shadow: none !important;
    border: 1px solid #ccc !important;
  }
}

/* ── RESPONSIVE ────────────────────────────────────────────── */

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

@media (max-width: 720px) {
  .brn-creativity-grid {
    grid-template-columns: 1fr;
  }

  .brn-ideas-grid {
    grid-template-columns: 1fr;
  }

  .brn-skeleton-grid {
    grid-template-columns: 1fr;
  }

  .brn-tips-grid,
  .brn-mistakes-grid {
    grid-template-columns: 1fr;
  }

  .brn-hero-title {
    font-size: var(--text-2xl);
  }

  .brn-status-card {
    left: var(--space-4);
    right: var(--space-4);
    max-width: none;
  }
}

@media (max-width: 480px) {
  .brn-tool {
    padding: var(--space-4) var(--space-3) var(--space-12);
  }

  .brn-input-card {
    padding: var(--space-5);
  }

  .brn-actions {
    flex-direction: column-reverse;
  }

  .brn-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .brn-hero-copy {
    gap: var(--space-3);
  }
}

/* ── Result actions row ── */
.brn-result-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
}

/* ── Bookmark button ── */
.brn-bookmark-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.brn-bookmark-btn:hover {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.3);
  color: #f59e0b;
}
.brn-bookmark-btn.is-bookmarked {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.35);
  color: #f59e0b;
}
.brn-bookmark-btn.is-bookmarked svg path {
  fill: #f59e0b;
  stroke: #f59e0b;
}