/* ═══════════════════════════════════════════════════════════════════════════════
   Accenture Song Iberia — Synthetic Workforce Simulator
   Design System: Accenture.com brand guidelines
   Black (#000) · Purple (#A100FF) · White (#FFF) · Gray (#F2F2F2)
═══════════════════════════════════════════════════════════════════════════════ */

/* ── VARIABLES ───────────────────────────────────────────────────────────────── */
:root {
  /* Brand colors */
  --acn-black: #000000;
  --acn-purple: #A100FF;
  --acn-purple-dark: #7D00C5;
  --acn-purple-alpha: rgba(161, 0, 255, 0.06);
  --acn-white: #FFFFFF;

  /* Grays */
  --gray-50: #F9F9F9;
  --gray-100: #F2F2F2;
  --gray-200: #E5E5E5;
  --gray-300: #D0D0D0;
  --gray-400: #AAAAAA;
  --gray-500: #888888;
  --gray-600: #666666;
  --gray-700: #444444;
  --gray-800: #2A2A2A;

  /* Reaction colors */
  --reaction-positive: #00875A;
  --reaction-positive-bg: #E3F5EE;
  --reaction-neutral: #555555;
  --reaction-neutral-bg: #F0F0F0;
  --reaction-skeptical: #C75400;
  --reaction-skeptical-bg: #FFF0E5;
  --reaction-negative: #BF0000;
  --reaction-negative-bg: #FDECEA;

  /* Capability group accents */
  --cap-creative: #A100FF;
  --cap-tech: #0091D5;
  --cap-advisory: #6200B3;
  --cap-delivery: #3A3A3A;
  --cap-commercial: #007A52;
  --cap-expertise: #1A1A6E;
  --cap-executive: #000000;
  --cap-cross: #777777;

  /* Spacing */
  --s1: 4px;   --s2: 8px;   --s3: 12px;  --s4: 16px;
  --s5: 20px;  --s6: 24px;  --s8: 32px;  --s10: 40px;
  --s12: 48px; --s16: 64px; --s20: 80px; --s24: 96px;

  /* Typography */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Layout */
  --max-w: 1280px;
  --header-h: 60px;

  /* Transitions */
  --ease: 200ms ease;
  --ease-slow: 350ms ease;
}

/* ── RESET & BASE ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-family: var(--font);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  background: var(--acn-white);
  color: var(--acn-black);
  line-height: 1.6;
}

img, svg { display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: var(--font); cursor: pointer; border: none; background: none; }
textarea { font-family: var(--font); }
h1, h2, h3 { line-height: 1.1; }

/* ── LAYOUT ───────────────────────────────────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--s8);
}

/* ── HEADER ───────────────────────────────────────────────────────────────────── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: var(--acn-black);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header__brand {
  display: flex;
  align-items: center;
  gap: var(--s3);
  color: var(--acn-white);
}

.header__chevron {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--acn-purple);
  line-height: 1;
}

.header__acn {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--acn-white);
}

.header__song {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--acn-purple);
}

.header__pipe {
  color: var(--gray-600);
  font-size: 0.875rem;
}

.header__region {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--gray-400);
}

.header__tool {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--gray-500);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.header__history-btn {
  display: flex;
  align-items: center;
  gap: var(--s2);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--gray-400);
  letter-spacing: 0.02em;
  padding: var(--s2) var(--s3);
  border: 1px solid rgba(255,255,255,0.15);
  transition: all var(--ease);
  background: transparent;
  cursor: pointer;
}

.header__history-btn:hover {
  color: var(--acn-white);
  border-color: rgba(255,255,255,0.4);
}

.header__history-count {
  font-size: 0.65rem;
  font-weight: 800;
  background: var(--acn-purple);
  color: var(--acn-white);
  border-radius: 50%;
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

/* ── HERO ─────────────────────────────────────────────────────────────────────── */
.hero {
  background: var(--acn-black);
  padding: var(--s24) 0 var(--s20);
  border-bottom: 3px solid var(--acn-purple);
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: var(--s16);
  align-items: end;
}

.hero__eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--acn-purple);
  margin-bottom: var(--s5);
}

.hero__title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  color: var(--acn-white);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: var(--s6);
}

.hero__desc {
  font-size: 1.05rem;
  color: var(--gray-400);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: var(--s8);
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--s2);
  background: var(--acn-purple);
  color: var(--acn-white);
  font-size: 0.9rem;
  font-weight: 700;
  padding: var(--s3) var(--s6);
  letter-spacing: 0.02em;
  transition: background var(--ease);
}

.hero__cta:hover { background: var(--acn-purple-dark); }

.hero__right {
  padding-bottom: var(--s2);
}

.hero__stats {
  display: flex;
  gap: var(--s8);
  margin-bottom: var(--s6);
}

.hero__stat {
  display: flex;
  flex-direction: column;
  gap: var(--s1);
}

.hero__stat-n {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--acn-white);
  line-height: 1;
}

.hero__stat-l {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gray-500);
}

.hero__governance {
  font-size: 0.72rem;
  color: var(--gray-600);
  letter-spacing: 0.02em;
  border-top: 1px solid var(--gray-800);
  padding-top: var(--s4);
}

/* ── STEP SECTIONS ───────────────────────────────────────────────────────────── */
.step-section {
  padding: var(--s20) 0 var(--s16);
}

.step-section--white { background: var(--acn-white); }
.step-section--alt   { background: var(--gray-100); }

.step-header {
  margin-bottom: var(--s10);
}

.step-header--results {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--s4);
}

.step-label {
  display: flex;
  align-items: baseline;
  gap: var(--s3);
  margin-bottom: var(--s4);
}

.step-num {
  font-size: 4rem;
  font-weight: 900;
  color: var(--acn-black);
  line-height: 1;
  letter-spacing: -0.04em;
}

.step-sep {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--gray-300);
}

.step-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--acn-black);
  letter-spacing: -0.02em;
}

.step-desc {
  font-size: 0.95rem;
  color: var(--gray-600);
  max-width: 600px;
  line-height: 1.7;
}

/* ── FILTER BAR ──────────────────────────────────────────────────────────────── */
.filter-bar {
  display: flex;
  gap: var(--s2);
  flex-wrap: wrap;
  margin-bottom: var(--s8);
}

.filter-pill {
  font-size: 0.8rem;
  font-weight: 600;
  padding: var(--s2) var(--s4);
  border: 1.5px solid var(--gray-300);
  color: var(--gray-600);
  background: var(--acn-white);
  letter-spacing: 0.01em;
  transition: all var(--ease);
  white-space: nowrap;
}

.filter-pill:hover {
  border-color: var(--acn-black);
  color: var(--acn-black);
}

.filter-pill--active {
  background: var(--acn-black);
  border-color: var(--acn-black);
  color: var(--acn-white);
}

/* ── PERSONA GRID ────────────────────────────────────────────────────────────── */
.persona-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(255px, 1fr));
  gap: var(--s4);
  margin-bottom: var(--s6);
}

.persona-grid__skeleton {
  display: contents;
}

.persona-card-skeleton {
  height: 160px;
  background: var(--gray-100);
  animation: shimmer 1.4s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

/* Persona card */
.persona-card {
  position: relative;
  background: var(--acn-white);
  border: 1.5px solid var(--gray-200);
  border-left: 4px solid var(--cap-color, var(--gray-300));
  padding: var(--s5);
  cursor: pointer;
  transition: all var(--ease);
  user-select: none;
  -webkit-user-select: none;
}

.persona-card:hover {
  border-color: var(--gray-400);
  border-left-color: var(--cap-color, var(--gray-400));
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

.persona-card.is-selected {
  border-color: var(--acn-purple);
  border-left-color: var(--acn-purple);
  background: var(--acn-purple-alpha);
}

.persona-card.is-hidden {
  display: none;
}

/* Selected checkmark */
.persona-card.is-selected::after {
  content: '✓';
  position: absolute;
  top: 10px;
  right: 10px;
  width: 22px;
  height: 22px;
  background: var(--acn-purple);
  color: var(--acn-white);
  font-size: 11px;
  font-weight: 800;
  border-radius: 50%;
  line-height: 22px;
  text-align: center;
}

/* Governance flag */
.persona-card.has-governance::before {
  content: '!';
  position: absolute;
  top: 10px;
  left: -4px;
  width: 18px;
  height: 18px;
  background: var(--reaction-skeptical);
  color: var(--acn-white);
  font-size: 10px;
  font-weight: 800;
  line-height: 18px;
  text-align: center;
}

.persona-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--s3);
}

.persona-card__id {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cap-color, var(--gray-500));
  background: color-mix(in srgb, var(--cap-color, #888) 10%, transparent);
  padding: 2px 7px;
}

.persona-card__header-right {
  display: flex;
  align-items: center;
  gap: var(--s2);
}

.persona-card__group-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cap-color, var(--gray-400));
  flex-shrink: 0;
}

.persona-card__info-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  color: var(--gray-400);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  opacity: 0;
  transition: opacity var(--ease), color var(--ease);
  flex-shrink: 0;
}

.persona-card:hover .persona-card__info-btn,
.persona-card.is-selected .persona-card__info-btn {
  opacity: 1;
}

.persona-card__info-btn:hover {
  color: var(--cap-color, var(--acn-purple));
}

.persona-card__name {
  font-size: 1rem;
  font-weight: 800;
  color: var(--acn-black);
  margin-bottom: var(--s2);
  line-height: 1.2;
}

.persona-card__identity {
  font-size: 0.8rem;
  color: var(--gray-600);
  line-height: 1.5;
  margin-bottom: var(--s4);
}

.persona-card__footer {
  display: flex;
  gap: var(--s2);
  flex-wrap: wrap;
  margin-top: auto;
}

.persona-card__tag {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--gray-500);
  background: var(--gray-100);
  padding: 2px 7px;
  letter-spacing: 0.02em;
}

/* ── SELECTION BAR ───────────────────────────────────────────────────────────── */
.selection-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--s4) var(--s5);
  background: var(--gray-100);
  border: 1.5px solid var(--gray-200);
  margin-top: var(--s2);
}

.selection-bar__count {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
}

.selection-bar__actions {
  display: flex;
  gap: var(--s2);
}

/* ── USE CASE GRID ───────────────────────────────────────────────────────────── */
.use-case-wrap {
  margin-bottom: var(--s8);
}

.use-case-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: var(--s4);
}

.use-case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--s3);
}

.use-case-card {
  display: flex;
  align-items: flex-start;
  gap: var(--s4);
  padding: var(--s5);
  background: var(--acn-white);
  border: 1.5px solid var(--gray-200);
  text-align: left;
  transition: all var(--ease);
}

.use-case-card:hover {
  border-color: var(--acn-black);
}

.use-case-card.is-selected {
  background: var(--acn-black);
  border-color: var(--acn-black);
  color: var(--acn-white);
}

.use-case-card__icon {
  flex-shrink: 0;
  color: var(--gray-400);
  margin-top: 2px;
  transition: color var(--ease);
}

.use-case-card.is-selected .use-case-card__icon { color: var(--acn-purple); }
.use-case-card:hover:not(.is-selected) .use-case-card__icon { color: var(--acn-black); }

.use-case-card__name {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--acn-black);
  line-height: 1.3;
  margin-bottom: var(--s1);
}

.use-case-card.is-selected .use-case-card__name { color: var(--acn-white); }

.use-case-card__desc {
  font-size: 0.75rem;
  color: var(--gray-500);
  line-height: 1.5;
}

.use-case-card.is-selected .use-case-card__desc { color: var(--gray-400); }

/* ── SCENARIO INPUT ──────────────────────────────────────────────────────────── */
.scenario-wrap {
  margin-bottom: var(--s8);
}

.scenario-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: var(--s4);
  display: flex;
  align-items: center;
  gap: var(--s3);
}

.scenario-label-hint {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--acn-purple);
  font-style: italic;
}

.scenario-textarea {
  width: 100%;
  padding: var(--s5) var(--s6);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--acn-black);
  background: var(--acn-white);
  border: 1.5px solid var(--gray-200);
  resize: vertical;
  min-height: 160px;
  transition: border-color var(--ease);
  outline: none;
}

.scenario-textarea:focus {
  border-color: var(--acn-black);
}

.scenario-textarea::placeholder {
  color: var(--gray-400);
}

.scenario-foot {
  display: flex;
  justify-content: flex-end;
  margin-top: var(--s2);
}

.char-count {
  font-size: 0.75rem;
  color: var(--gray-400);
}

.char-count.is-warning { color: var(--reaction-skeptical); }
.char-count.is-max     { color: var(--reaction-negative); }

/* ── ATTACHMENTS ─────────────────────────────────────────────────────────────── */
.attachments-wrap {
  margin-top: var(--s4);
  padding-top: var(--s4);
  border-top: 1px dashed var(--gray-200);
}

.attachments-row {
  display: flex;
  align-items: center;
  gap: var(--s4);
  flex-wrap: wrap;
}

.attachments-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s2);
  padding: 8px 14px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--acn-black);
  background: var(--acn-white);
  border: 1.5px solid var(--gray-300);
  cursor: pointer;
  transition: border-color var(--ease), color var(--ease), background var(--ease);
  user-select: none;
}

.attachments-btn:hover {
  border-color: var(--acn-purple);
  color: var(--acn-purple);
  background: var(--acn-purple-alpha);
}

.attachments-hint {
  font-size: 0.72rem;
  color: var(--gray-500);
}

.attachments-hint--error {
  color: var(--reaction-negative);
  font-weight: 600;
}

.attachments-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s3);
  margin-top: var(--s4);
}

.attachment-chip {
  display: flex;
  align-items: center;
  gap: var(--s3);
  padding: 6px 8px 6px 6px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  max-width: 280px;
}

.attachment-chip__thumb {
  width: 36px;
  height: 36px;
  object-fit: cover;
  background: var(--gray-200);
  flex-shrink: 0;
}

.attachment-chip__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--acn-black);
  color: var(--acn-white);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.attachment-chip__meta {
  min-width: 0;
  flex: 1;
}

.attachment-chip__name {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--acn-black);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 180px;
}

.attachment-chip__size {
  font-size: 0.68rem;
  color: var(--gray-500);
}

.attachment-chip__remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: transparent;
  color: var(--gray-500);
  border: none;
  cursor: pointer;
  transition: color var(--ease), background var(--ease);
  flex-shrink: 0;
}

.attachment-chip__remove:hover {
  color: var(--reaction-negative);
  background: var(--reaction-negative-bg);
}

/* ── BUTTONS ─────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s2);
  font-family: var(--font);
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: all var(--ease);
  cursor: pointer;
  border: none;
}

.btn--ghost {
  background: transparent;
  border: 1.5px solid var(--gray-300);
  color: var(--gray-700);
  padding: var(--s2) var(--s4);
  font-size: 0.8rem;
}

.btn--ghost:hover {
  border-color: var(--acn-black);
  color: var(--acn-black);
}

.btn--sm {
  font-size: 0.78rem;
  padding: var(--s1) var(--s3);
}

.btn--run {
  display: inline-flex;
  align-items: center;
  gap: var(--s3);
  background: var(--acn-black);
  color: var(--acn-white);
  font-size: 1rem;
  font-weight: 800;
  padding: var(--s4) var(--s10);
  letter-spacing: 0.02em;
  transition: all var(--ease);
  border: 2px solid var(--acn-black);
}

.btn--run:hover:not(:disabled) {
  background: var(--acn-purple);
  border-color: var(--acn-purple);
}

.btn--run:disabled {
  background: var(--gray-200);
  border-color: var(--gray-200);
  color: var(--gray-400);
  cursor: not-allowed;
}

.btn__arrow {
  font-size: 1.1rem;
  font-weight: 900;
  transition: transform var(--ease);
}

.btn--run:hover:not(:disabled) .btn__arrow {
  transform: translateX(3px);
}

/* ── RUN SECTION ─────────────────────────────────────────────────────────────── */
.run-wrap {
  display: flex;
  align-items: center;
  gap: var(--s6);
  flex-wrap: wrap;
}

.run-hint {
  font-size: 0.82rem;
  color: var(--gray-500);
  font-style: italic;
}

/* ── RESULTS TOOLBAR ─────────────────────────────────────────────────────────── */
.results-toolbar {
  display: flex;
  align-items: center;
  gap: var(--s4);
  flex-wrap: wrap;
}

.results-summary-label {
  font-size: 0.82rem;
  color: var(--gray-500);
}

.results-actions {
  display: flex;
  gap: var(--s2);
}

/* ── SCENARIO RECAP ──────────────────────────────────────────────────────────── */
.scenario-recap {
  background: var(--gray-100);
  border-left: 4px solid var(--acn-purple);
  padding: var(--s5) var(--s6);
  margin-bottom: var(--s8);
}

.scenario-recap__label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--acn-purple);
  margin-bottom: var(--s2);
}

.scenario-recap__usecase {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-500);
  margin-bottom: var(--s2);
}

.scenario-recap__text {
  font-size: 0.9rem;
  color: var(--gray-700);
  line-height: 1.6;
  max-height: 80px;
  overflow: hidden;
  position: relative;
}

.scenario-recap__text--empty {
  font-style: italic;
  color: var(--gray-500);
}

.scenario-recap__attachments {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
  margin-top: var(--s3);
}

.scenario-recap__attachment {
  display: inline-flex;
  align-items: center;
  gap: var(--s2);
  padding: 4px 8px;
  background: var(--acn-white);
  border: 1px solid var(--gray-200);
  font-size: 0.74rem;
  color: var(--gray-700);
}

.scenario-recap__attachment-kind {
  background: var(--acn-black);
  color: var(--acn-white);
  font-weight: 700;
  font-size: 0.62rem;
  letter-spacing: 0.05em;
  padding: 1px 5px;
}

.scenario-recap__attachment-name {
  max-width: 220px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── REACTION BAR ────────────────────────────────────────────────────────────── */
.reaction-bar-wrap {
  margin-bottom: var(--s8);
}

.reaction-bar {
  display: flex;
  gap: var(--s6);
  flex-wrap: wrap;
}

.reaction-bar-item {
  display: flex;
  align-items: center;
  gap: var(--s2);
  font-size: 0.82rem;
  font-weight: 600;
}

.reaction-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.reaction-dot--POSITIVE  { background: var(--reaction-positive); }
.reaction-dot--NEUTRAL   { background: var(--reaction-neutral); }
.reaction-dot--SKEPTICAL { background: var(--reaction-skeptical); }
.reaction-dot--NEGATIVE  { background: var(--reaction-negative); }

/* ── RESULTS GRID ────────────────────────────────────────────────────────────── */
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: var(--s6);
  align-items: start;
}

/* ── RESULT CARD ─────────────────────────────────────────────────────────────── */
.result-card {
  background: var(--acn-white);
  border: 1.5px solid var(--gray-200);
  overflow: hidden;
  animation: cardIn 0.4s ease both;
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Stagger */
.result-card:nth-child(1)  { animation-delay: 0ms; }
.result-card:nth-child(2)  { animation-delay: 60ms; }
.result-card:nth-child(3)  { animation-delay: 120ms; }
.result-card:nth-child(4)  { animation-delay: 180ms; }
.result-card:nth-child(5)  { animation-delay: 240ms; }
.result-card:nth-child(6)  { animation-delay: 300ms; }
.result-card:nth-child(7)  { animation-delay: 360ms; }
.result-card:nth-child(8)  { animation-delay: 420ms; }
.result-card:nth-child(9)  { animation-delay: 480ms; }
.result-card:nth-child(10) { animation-delay: 540ms; }
.result-card:nth-child(11) { animation-delay: 600ms; }
.result-card:nth-child(12) { animation-delay: 660ms; }

.result-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--acn-black);
  padding: var(--s4) var(--s5);
  gap: var(--s4);
}

.result-card__persona {
  display: flex;
  align-items: center;
  gap: var(--s3);
  min-width: 0;
}

.result-card__id {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--acn-white);
  background: rgba(255,255,255,0.12);
  padding: 3px 8px;
  white-space: nowrap;
  flex-shrink: 0;
}

.result-card__name {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--acn-white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.result-card__cap {
  font-size: 0.7rem;
  color: var(--gray-500);
  white-space: nowrap;
  flex-shrink: 0;
}

/* Reaction badge */
.reaction-badge {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 9px;
  white-space: nowrap;
  flex-shrink: 0;
}

.reaction-badge--POSITIVE  { background: var(--reaction-positive-bg);  color: var(--reaction-positive); }
.reaction-badge--NEUTRAL   { background: var(--reaction-neutral-bg);   color: var(--reaction-neutral); }
.reaction-badge--SKEPTICAL { background: var(--reaction-skeptical-bg); color: var(--reaction-skeptical); }
.reaction-badge--NEGATIVE  { background: var(--reaction-negative-bg);  color: var(--reaction-negative); }

/* Card body */
.result-card__body {
  padding: var(--s5) var(--s6);
}

.result-card__headline {
  font-size: 1rem;
  font-weight: 600;
  font-style: italic;
  color: var(--acn-black);
  line-height: 1.4;
  margin-bottom: var(--s4);
  padding-left: var(--s4);
  border-left: 3px solid var(--gray-200);
}

.result-card--POSITIVE  .result-card__headline { border-left-color: var(--reaction-positive); }
.result-card--NEUTRAL   .result-card__headline { border-left-color: var(--reaction-neutral); }
.result-card--SKEPTICAL .result-card__headline { border-left-color: var(--reaction-skeptical); }
.result-card--NEGATIVE  .result-card__headline { border-left-color: var(--reaction-negative); }

.result-card__response {
  font-size: 0.88rem;
  color: var(--gray-700);
  line-height: 1.75;
  margin-bottom: var(--s5);
}

.result-card__signal {
  background: var(--acn-purple-alpha);
  border-left: 3px solid var(--acn-purple);
  padding: var(--s3) var(--s4);
}

.result-card__signal-label {
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--acn-purple);
  margin-bottom: var(--s1);
}

.result-card__signal-text {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--gray-700);
  line-height: 1.5;
}

/* Insights section on result card */
.result-card__insights {
  /* container — empty when no insights */
}

.insights-section {
  margin: 0 var(--s6) var(--s4);
  border-left: 3px solid var(--acn-purple);
  background: var(--acn-purple-alpha);
  padding: var(--s3) var(--s4);
}

.insights-section__label {
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--acn-purple);
  margin-bottom: var(--s3);
}

.insight-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--s3);
  padding: var(--s2) 0;
  border-top: 1px solid rgba(161,0,255,0.12);
}

.insight-item:first-of-type {
  border-top: none;
  padding-top: 0;
}

.insight-item__text {
  font-size: 0.82rem;
  color: var(--gray-700);
  line-height: 1.55;
  flex: 1;
}

.insight-item__delete {
  flex-shrink: 0;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--gray-400);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0 var(--s1);
  line-height: 1;
  font-family: var(--font);
  transition: color var(--ease);
  margin-top: 2px;
}

.insight-item__delete:hover { color: var(--reaction-negative); }

/* Card footer */
.result-card__footer {
  display: flex;
  gap: var(--s2);
  flex-wrap: wrap;
  padding: var(--s3) var(--s6);
  background: var(--gray-50);
  border-top: 1px solid var(--gray-200);
}

.meta-chip {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--gray-500);
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  padding: 2px 8px;
  letter-spacing: 0.01em;
}

/* ── ERRORS ──────────────────────────────────────────────────────────────────── */
.errors-inner {
  margin-top: var(--s6);
}

.error-card {
  display: flex;
  align-items: flex-start;
  gap: var(--s4);
  padding: var(--s4) var(--s5);
  background: var(--reaction-negative-bg);
  border: 1.5px solid var(--reaction-negative);
  margin-bottom: var(--s3);
}

.error-card__label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--reaction-negative);
}

.error-card__msg {
  font-size: 0.8rem;
  color: var(--gray-700);
}

/* ── LOADING OVERLAY ─────────────────────────────────────────────────────────── */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

.loading-card {
  background: var(--acn-white);
  padding: var(--s10) var(--s12);
  text-align: center;
  max-width: 400px;
  width: 90%;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--acn-purple);
  border-radius: 50%;
  margin: 0 auto var(--s6);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--acn-black);
  margin-bottom: var(--s2);
}

.loading-sub {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-bottom: var(--s6);
}

.loading-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
  justify-content: center;
}

.loading-chip {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--gray-600);
  background: var(--gray-100);
  padding: 3px 10px;
  animation: pulse 1.2s ease-in-out infinite;
}

.loading-chip:nth-child(2) { animation-delay: 0.1s; }
.loading-chip:nth-child(3) { animation-delay: 0.2s; }
.loading-chip:nth-child(4) { animation-delay: 0.3s; }
.loading-chip:nth-child(5) { animation-delay: 0.4s; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* ── FOOTER ──────────────────────────────────────────────────────────────────── */
.footer {
  background: var(--acn-black);
  padding: var(--s12) 0;
  border-top: 3px solid var(--acn-purple);
  margin-top: var(--s16);
}

.footer__inner {
  display: grid;
  gap: var(--s6);
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: var(--s3);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--acn-white);
}

.footer__chevron {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--acn-purple);
  line-height: 1;
}

.footer__governance {
  font-size: 0.78rem;
  color: var(--gray-500);
  line-height: 1.7;
  max-width: 780px;
}

.footer__governance strong {
  color: var(--gray-400);
}

.footer__meta {
  font-size: 0.72rem;
  color: var(--gray-700);
  letter-spacing: 0.04em;
}

/* ── PERSONA DETAIL MODAL ────────────────────────────────────────────────────── */
#persona-detail-modal {
  position: fixed;
  inset: 0;
  z-index: 350;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--s6);
}

#persona-detail-modal[hidden] { display: none; }

.pd-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(3px);
  animation: fadeIn 200ms ease;
}

.pd-panel {
  position: relative;
  background: var(--acn-white);
  width: 100%;
  max-width: 660px;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  border-left: 4px solid var(--pd-color, var(--acn-purple));
  animation: pdSlideIn 220ms ease;
  display: flex;
  flex-direction: column;
}

@keyframes pdSlideIn {
  from { opacity: 0; transform: translateY(20px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.pd-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s4);
  padding: var(--s5) var(--s6);
  background: var(--acn-black);
  position: sticky;
  top: 0;
  z-index: 1;
  flex-shrink: 0;
}

.pd-header__left {
  display: flex;
  align-items: center;
  gap: var(--s4);
  min-width: 0;
}

.pd-id {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--acn-white);
  background: rgba(255,255,255,0.12);
  padding: 3px 8px;
  white-space: nowrap;
  flex-shrink: 0;
}

.pd-name {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--acn-white);
  line-height: 1.2;
}

.pd-meta {
  font-size: 0.7rem;
  color: var(--gray-500);
  margin-top: 2px;
}

.pd-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: var(--gray-500);
  cursor: pointer;
  background: transparent;
  border: none;
  padding: 0;
  flex-shrink: 0;
  transition: color var(--ease);
}

.pd-close:hover { color: var(--acn-white); }

.pd-body {
  padding: var(--s6);
  display: flex;
  flex-direction: column;
  gap: var(--s5);
}

.pd-identity {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--gray-700);
  line-height: 1.55;
  font-style: italic;
  border-left: 3px solid var(--pd-color, var(--acn-purple));
  padding-left: var(--s4);
}

.pd-tags {
  display: flex;
  gap: var(--s2);
  flex-wrap: wrap;
}

.pd-tag {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--gray-600);
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  padding: 2px 9px;
}

.pd-section {
  display: flex;
  flex-direction: column;
  gap: var(--s2);
}

.pd-section__label {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-400);
}

.pd-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
}

.pd-chip {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--gray-700);
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  padding: 3px 10px;
}

.pd-text {
  font-size: 0.82rem;
  color: var(--gray-700);
  line-height: 1.55;
}

.pd-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s5);
}

/* AI profile */
.pd-ai-grid {
  display: flex;
  flex-direction: column;
  gap: var(--s2);
  background: var(--gray-50);
  padding: var(--s4);
  border: 1px solid var(--gray-200);
}

.pd-ai-row {
  display: flex;
  align-items: center;
  gap: var(--s3);
}

.pd-ai-label {
  font-size: 0.75rem;
  color: var(--gray-600);
  font-weight: 500;
  width: 150px;
  flex-shrink: 0;
}

.pd-ai-dots {
  display: flex;
  gap: 4px;
  flex: 1;
}

.pd-ai-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gray-200);
}

.pd-ai-dot--on {
  background: var(--pd-color, var(--acn-purple));
}

.pd-ai-value {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--gray-500);
  width: 80px;
  text-align: right;
  flex-shrink: 0;
}

/* Risk indicators */
.pd-risk-row {
  display: flex;
  gap: var(--s4);
  flex-wrap: wrap;
}

.pd-risk-item {
  display: flex;
  flex-direction: column;
  gap: var(--s1);
}

.pd-risk-label {
  font-size: 0.65rem;
  color: var(--gray-400);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.pd-risk {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 9px;
  letter-spacing: 0.02em;
}

.pd-risk--low          { background: var(--reaction-positive-bg);  color: var(--reaction-positive); }
.pd-risk--medium       { background: var(--reaction-neutral-bg);   color: var(--reaction-neutral); }
.pd-risk--medium-high  { background: var(--reaction-skeptical-bg); color: var(--reaction-skeptical); }
.pd-risk--high         { background: var(--reaction-negative-bg);  color: var(--reaction-negative); }
.pd-risk--very-high    { background: var(--reaction-negative);     color: var(--acn-white); }

/* Quotes */
.pd-quotes {
  display: flex;
  flex-direction: column;
  gap: var(--s3);
}

.pd-quote {
  font-size: 0.82rem;
  font-style: italic;
  color: var(--gray-600);
  line-height: 1.6;
  padding-left: var(--s4);
  border-left: 2px solid var(--gray-200);
}

/* Governance */
.pd-governance {
  background: #FFF8E5;
  border: 1.5px solid #E6A817;
  padding: var(--s4) var(--s5);
  display: flex;
  flex-direction: column;
  gap: var(--s2);
}

.pd-governance__label {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #9A6700;
}

.pd-governance__text {
  font-size: 0.82rem;
  color: #5C3D00;
  line-height: 1.55;
}

@media (max-width: 640px) {
  #persona-detail-modal { padding: 0; align-items: flex-end; }
  .pd-panel { max-height: 90vh; border-left: none; border-top: 4px solid var(--pd-color, var(--acn-purple)); }
  .pd-grid-2 { grid-template-columns: 1fr; }
}

/* ── HISTORY DRAWER ──────────────────────────────────────────────────────────── */
.history-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 299;
  backdrop-filter: blur(2px);
  animation: fadeIn 200ms ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.history-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 420px;
  max-width: 100vw;
  background: var(--acn-white);
  z-index: 300;
  display: flex;
  flex-direction: column;
  box-shadow: -4px 0 32px rgba(0,0,0,0.18);
  transform: translateX(0);
  transition: transform var(--ease-slow);
}

.history-drawer[hidden] {
  display: none;
}

.history-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--s5) var(--s6);
  background: var(--acn-black);
  flex-shrink: 0;
}

.history-drawer__title {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--acn-white);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.history-drawer__actions {
  display: flex;
  align-items: center;
  gap: var(--s3);
}

.history-drawer__actions .btn--ghost {
  border-color: rgba(255,255,255,0.2);
  color: var(--gray-400);
  font-size: 0.72rem;
}

.history-drawer__actions .btn--ghost:hover {
  border-color: var(--acn-white);
  color: var(--acn-white);
}

.history-drawer__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: var(--gray-400);
  transition: color var(--ease);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}

.history-drawer__close:hover { color: var(--acn-white); }

.history-drawer__body {
  flex: 1;
  overflow-y: auto;
  padding: var(--s4) 0;
}

/* Empty state */
.history-empty {
  padding: var(--s12) var(--s6);
  text-align: center;
}

.history-empty__icon {
  color: var(--gray-300);
  margin: 0 auto var(--s4);
}

.history-empty__text {
  font-size: 0.88rem;
  color: var(--gray-400);
  line-height: 1.6;
}

/* History item */
.history-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: var(--s4) var(--s6);
  border-bottom: 1px solid var(--gray-100);
  cursor: pointer;
  background: transparent;
  transition: background var(--ease);
  position: relative;
}

.history-item:hover {
  background: var(--gray-50);
}

.history-item:hover .history-item__delete {
  opacity: 1;
}

.history-item__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s3);
  margin-bottom: var(--s2);
}

.history-item__meta {
  display: flex;
  align-items: center;
  gap: var(--s2);
  flex-wrap: wrap;
}

.history-item__usecase {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--acn-purple);
  background: var(--acn-purple-alpha);
  padding: 2px 7px;
}

.history-item__cohorts {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--gray-500);
}

.history-item__time {
  font-size: 0.68rem;
  color: var(--gray-400);
  flex-shrink: 0;
}

.history-item__scenario {
  font-size: 0.8rem;
  color: var(--gray-700);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  padding-right: var(--s8);
}

.history-item__reaction-bar {
  display: flex;
  gap: var(--s2);
  flex-wrap: wrap;
  margin-top: var(--s2);
}

.history-item__reaction-chip {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 2px 7px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.history-item__reaction-chip--POSITIVE  { background: var(--reaction-positive-bg);  color: var(--reaction-positive); }
.history-item__reaction-chip--NEUTRAL   { background: var(--reaction-neutral-bg);   color: var(--reaction-neutral); }
.history-item__reaction-chip--SKEPTICAL { background: var(--reaction-skeptical-bg); color: var(--reaction-skeptical); }
.history-item__reaction-chip--NEGATIVE  { background: var(--reaction-negative-bg);  color: var(--reaction-negative); }

.history-item__delete {
  position: absolute;
  bottom: var(--s4);
  right: var(--s6);
  font-size: 0.68rem;
  color: var(--gray-400);
  font-weight: 600;
  opacity: 0;
  transition: opacity var(--ease), color var(--ease);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 2px 6px;
}

.history-item__delete:hover { color: var(--reaction-negative); }

@media (max-width: 640px) {
  .history-drawer { width: 100vw; }
}

/* ── RESULT CARD — DEEP DIVE BUTTON ─────────────────────────────────────────── */
.result-card__chat-btn {
  display: flex;
  align-items: center;
  gap: var(--s2);
  width: 100%;
  padding: var(--s3) var(--s6);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--acn-purple);
  background: var(--acn-purple-alpha);
  border-top: 1px solid rgba(161, 0, 255, 0.12);
  border-bottom: none;
  border-left: none;
  border-right: none;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: all var(--ease);
  font-family: var(--font);
}

.result-card__chat-btn:hover {
  background: rgba(161, 0, 255, 0.12);
  color: var(--acn-purple-dark);
}

.result-card__chat-btn svg {
  transition: transform var(--ease);
}

.result-card__chat-btn:hover svg {
  transform: translateX(3px);
}

.result-card__chat-btn--active {
  background: var(--acn-purple);
  color: var(--acn-white);
  border-top-color: var(--acn-purple);
}

/* ── CHAT MODAL ──────────────────────────────────────────────────────────────── */
.chat-modal {
  position: fixed;
  inset: 0;
  z-index: 400;
  background: var(--acn-white);
  display: flex;
  flex-direction: column;
  animation: slideUp 250ms ease;
}

.chat-modal[hidden] { display: none; }

@keyframes slideUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Header */
.chat-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s4);
  padding: 0 var(--s8);
  height: var(--header-h);
  background: var(--acn-black);
  flex-shrink: 0;
  border-bottom: 2px solid var(--acn-purple);
}

.chat-modal__persona {
  display: flex;
  align-items: center;
  gap: var(--s4);
  min-width: 0;
}

.chat-modal__persona-id {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--acn-white);
  background: rgba(255,255,255,0.12);
  padding: 3px 8px;
  white-space: nowrap;
  flex-shrink: 0;
}

.chat-modal__persona-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--acn-white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-modal__persona-cap {
  font-size: 0.7rem;
  color: var(--gray-500);
}

.chat-modal__header-right {
  display: flex;
  align-items: center;
  gap: var(--s4);
  flex-shrink: 0;
}

.chat-modal__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: var(--gray-400);
  cursor: pointer;
  transition: color var(--ease);
  background: transparent;
  border: none;
  padding: 0;
}

.chat-modal__close:hover { color: var(--acn-white); }

/* Context strip */
.chat-modal__context {
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
  flex-shrink: 0;
}

.chat-context__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--s3) var(--s8);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray-500);
  cursor: pointer;
  background: transparent;
  border: none;
  font-family: var(--font);
  transition: color var(--ease);
}

.chat-context__toggle:hover { color: var(--gray-700); }

.chat-context__chevron {
  transition: transform var(--ease);
  flex-shrink: 0;
}

.chat-context__toggle[aria-expanded="true"] .chat-context__chevron {
  transform: rotate(180deg);
}

.chat-context__body {
  padding: 0 var(--s8) var(--s5);
  display: grid;
  gap: var(--s3);
  max-width: 860px;
}

.chat-context__body[hidden] { display: none; }

.chat-context__headline {
  font-size: 0.95rem;
  font-weight: 600;
  font-style: italic;
  color: var(--gray-700);
  border-left: 3px solid var(--acn-purple);
  padding-left: var(--s4);
  line-height: 1.4;
}

.chat-context__response {
  font-size: 0.82rem;
  color: var(--gray-600);
  line-height: 1.65;
}

.chat-context__signal {
  font-size: 0.78rem;
  color: var(--acn-purple);
  font-weight: 600;
  background: var(--acn-purple-alpha);
  border-left: 3px solid var(--acn-purple);
  padding: var(--s2) var(--s3);
}

/* Messages */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--s6) var(--s8);
  display: flex;
  flex-direction: column;
  gap: var(--s5);
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
  align-self: stretch;
}

.chat-msg {
  display: flex;
  gap: var(--s3);
  align-items: flex-start;
  max-width: 78%;
  animation: msgIn 200ms ease;
}

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

.chat-msg--user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.chat-msg--assistant {
  align-self: flex-start;
}

.chat-msg__bubble {
  padding: var(--s3) var(--s5);
  font-size: 0.88rem;
  line-height: 1.65;
}

.chat-msg--user .chat-msg__bubble {
  background: var(--acn-black);
  color: var(--acn-white);
}

.chat-msg--assistant .chat-msg__bubble {
  background: var(--gray-100);
  color: var(--gray-800);
  border-left: 3px solid var(--acn-purple);
}

.chat-msg--thinking .chat-msg__bubble {
  background: var(--gray-100);
}

.chat-msg__avatar {
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--acn-white);
  background: var(--acn-purple);
  padding: 3px 6px;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 4px;
  height: fit-content;
}

/* Typing indicator */
.chat-typing {
  display: flex;
  gap: 5px;
  padding: var(--s3) var(--s5);
  background: var(--gray-100);
  border-left: 3px solid var(--acn-purple);
  align-items: center;
  width: fit-content;
}

.chat-typing span {
  width: 6px;
  height: 6px;
  background: var(--acn-purple);
  border-radius: 50%;
  animation: typingDot 1.2s ease-in-out infinite;
}

.chat-typing span:nth-child(2) { animation-delay: 0.2s; }
.chat-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingDot {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-5px); opacity: 1; }
}

/* Suggestions */
.chat-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
  padding: var(--s3) var(--s8);
  border-top: 1px solid var(--gray-100);
  flex-shrink: 0;
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
  align-self: stretch;
}

.chat-suggestions--hidden { display: none; }

.chat-suggestion {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gray-600);
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  padding: var(--s2) var(--s3);
  cursor: pointer;
  font-family: var(--font);
  transition: all var(--ease);
  text-align: left;
  line-height: 1.3;
}

.chat-suggestion:hover {
  background: var(--acn-black);
  color: var(--acn-white);
  border-color: var(--acn-black);
}

/* Save insight button (in chat header) */
.chat-modal__save-insight-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--gray-400);
  background: transparent;
  border: 1px solid rgba(255,255,255,0.15);
  padding: var(--s1) var(--s3);
  cursor: pointer;
  font-family: var(--font);
  transition: all var(--ease);
}

.chat-modal__save-insight-btn:hover {
  background: var(--acn-purple);
  border-color: var(--acn-purple);
  color: var(--acn-white);
}

.chat-modal__save-insight-btn--active {
  background: var(--acn-purple);
  border-color: var(--acn-purple);
  color: var(--acn-white);
}

/* Insight panel (above input bar) */
.chat-insight-panel {
  border-top: 2px solid var(--acn-purple);
  background: var(--acn-purple-alpha);
  padding: var(--s4) var(--s8);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: var(--s3);
  animation: panelSlideIn 180ms ease;
}

.chat-insight-panel[hidden] { display: none; }

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

.chat-insight-panel__label {
  display: flex;
  align-items: center;
  gap: var(--s2);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--acn-purple);
}

.chat-insight-panel__textarea {
  font-family: var(--font);
  font-size: 0.875rem;
  color: var(--acn-black);
  background: var(--acn-white);
  border: 1.5px solid rgba(161,0,255,0.3);
  padding: var(--s3) var(--s4);
  resize: none;
  line-height: 1.55;
  outline: none;
  width: 100%;
  transition: border-color var(--ease);
}

.chat-insight-panel__textarea:focus {
  border-color: var(--acn-purple);
}

.chat-insight-panel__textarea::placeholder { color: var(--gray-400); }

.chat-insight-panel__actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--s2);
}

.chat-insight-panel__save-btn {
  font-family: var(--font);
  font-size: 0.78rem;
  font-weight: 700;
  padding: var(--s2) var(--s4);
  background: var(--acn-purple);
  color: var(--acn-white);
  border: none;
  cursor: pointer;
  transition: background var(--ease);
  letter-spacing: 0.02em;
}

.chat-insight-panel__save-btn:hover:not(:disabled) {
  background: var(--acn-purple-dark);
}

.chat-insight-panel__save-btn:disabled {
  background: var(--gray-300);
  color: var(--gray-500);
  cursor: not-allowed;
}

/* Input bar */
.chat-input-bar {
  display: flex;
  align-items: flex-end;
  gap: var(--s3);
  padding: var(--s4) var(--s8);
  border-top: 1.5px solid var(--gray-200);
  background: var(--acn-white);
  flex-shrink: 0;
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
  align-self: stretch;
}

.chat-input {
  flex: 1;
  font-family: var(--font);
  font-size: 0.9rem;
  color: var(--acn-black);
  background: var(--gray-50);
  border: 1.5px solid var(--gray-200);
  padding: var(--s3) var(--s4);
  resize: none;
  line-height: 1.5;
  max-height: 140px;
  overflow-y: auto;
  outline: none;
  transition: border-color var(--ease);
}

.chat-input:focus {
  border-color: var(--acn-black);
  background: var(--acn-white);
}

.chat-input::placeholder { color: var(--gray-400); }

.chat-send {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--acn-black);
  color: var(--acn-white);
  border: none;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--ease);
}

.chat-send:hover:not(:disabled) { background: var(--acn-purple); }

.chat-send:disabled {
  background: var(--gray-200);
  color: var(--gray-400);
  cursor: not-allowed;
}

@media (max-width: 640px) {
  .chat-messages,
  .chat-suggestions,
  .chat-input-bar {
    padding-left: var(--s5);
    padding-right: var(--s5);
  }
  .chat-modal__header { padding: 0 var(--s5); }
  .chat-context__toggle,
  .chat-context__body { padding-left: var(--s5); padding-right: var(--s5); }
  .chat-msg { max-width: 92%; }
}

/* ── RESULTS FADE IN ─────────────────────────────────────────────────────────── */
#section-results.is-visible {
  animation: sectionIn 0.4s ease;
}

@keyframes sectionIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── RESPONSIVE ──────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: var(--s10);
  }
  .hero__stats { justify-content: flex-start; }

  .step-num { font-size: 2.8rem; }
  .step-title { font-size: 1.6rem; }

  .results-grid {
    grid-template-columns: 1fr;
  }

  .use-case-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .container { padding: 0 var(--s5); }

  .header__tool { display: none; }

  .hero { padding: var(--s16) 0 var(--s12); }
  .hero__title { font-size: 2rem; }
  .hero__desc { font-size: 0.9rem; }

  .step-section { padding: var(--s12) 0 var(--s10); }
  .step-label { flex-wrap: wrap; }
  .step-num { font-size: 2.2rem; }

  .persona-grid {
    grid-template-columns: 1fr;
  }

  .use-case-grid {
    grid-template-columns: 1fr;
  }

  .step-header--results {
    flex-direction: column;
  }

  .run-wrap {
    flex-direction: column;
    align-items: flex-start;
  }

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

/* ── PRINT ───────────────────────────────────────────────────────────────────── */
@media print {
  .header, .hero, #section-cohorts, #section-scenario,
  .loading-overlay, .results-toolbar, .footer { display: none !important; }

  #section-results { display: block !important; }

  .results-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .result-card { break-inside: avoid; }
}