/* ============================================
   EXHIBIT 04: DARK PATTERNS
   dark.css
   ============================================ */

/* ---- Local color tokens ---- */
:root {
  --danger:     #e05252;
  --danger-dim: rgba(224, 82, 82, 0.12);
  --danger-mid: rgba(224, 82, 82, 0.25);
}

/* ---- Shared exhibit utilities ---- */

.nav-current {
  color: var(--accent) !important;
}

.surface-section {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.exhibit-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--border-light);
  border-radius: 100px;
  padding: 0.25rem 0.75rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 600px;
  margin-top: 0.75rem;
  margin-bottom: 0;
  line-height: 1.6;
}

/* ---- Content grid (essay + aside) ---- */

.content-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 5rem;
  align-items: start;
}

.content-aside {
  position: sticky;
  top: 5.5rem;
}

.pull-quote {
  border-left: 3px solid var(--accent);
  padding: 1.25rem 1.5rem;
  background: var(--card);
  border-radius: 0 10px 10px 0;
}

.pull-quote p {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.pull-quote cite {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-style: normal;
}

/* ---- Dark pattern card grid ---- */

.dark-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.dark-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.dark-card-header {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.75rem 1.75rem 1.25rem;
}

.dark-num {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 900;
  line-height: 0.9;
  color: rgba(224, 82, 82, 0.3);
  flex-shrink: 0;
  user-select: none;
  margin-top: 0.1rem;
}

.dark-card-title h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--text);
}

.dark-card-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

/* ---- Demo container ---- */

.dark-demo {
  flex: 1;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.dark-demo-ui {
  padding: 1.75rem;
}

/* ---- Demo reveal state ---- */

.dark-demo-reveal {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.dark-reveal-headline {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--danger);
  margin: 0;
  line-height: 1.3;
}

.dark-reveal-body {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
}

.dark-demo-replay {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  background: none;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  padding: 0.45rem 0.9rem;
  cursor: pointer;
  transition: color var(--t-fast), border-color var(--t-fast);
  align-self: flex-start;
  margin-top: 0.25rem;
}

.dark-demo-replay:hover {
  color: var(--text);
  border-color: var(--text-dim);
}

/* ============================================
   DEMO 01: CONFIRMSHAMING
   ============================================ */

.cs-popup {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 1.5rem;
  position: relative;
  max-width: 340px;
  margin: 0 auto;
  text-align: center;
}

.cs-close {
  position: absolute;
  top: 0.75rem;
  right: 1rem;
  font-size: 1rem;
  color: var(--text-dim);
  cursor: default;
  user-select: none;
}

.cs-headline {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.4rem;
}

.cs-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.cs-input {
  width: 100%;
  padding: 0.6rem 0.9rem;
  background: var(--card);
  border: 1px solid var(--border-light);
  border-radius: 7px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
  box-sizing: border-box;
}

.cs-input::placeholder {
  color: var(--text-dim);
}

.cs-yes {
  display: block;
  width: 100%;
  padding: 0.7rem 1rem;
  background: var(--accent);
  color: #1a1400;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  margin-bottom: 0.6rem;
  transition: background var(--t-fast);
}

.cs-yes:hover {
  background: var(--accent-hover);
}

.cs-no {
  display: block;
  width: 100%;
  background: none;
  border: none;
  color: var(--text-dim);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  cursor: pointer;
  padding: 0.25rem;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--t-fast);
}

.cs-no:hover {
  color: var(--text-muted);
}

/* ============================================
   DEMO 02: TRICK QUESTIONS
   ============================================ */

.tq-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.tq-heading {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0;
}

.tq-row {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  cursor: pointer;
}

.tq-checkbox {
  width: 16px;
  height: 16px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--accent);
  cursor: pointer;
}

.tq-text {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.tq-save {
  align-self: flex-start;
  padding: 0.55rem 1.25rem;
  background: var(--accent);
  color: #1a1400;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  margin-top: 0.25rem;
  transition: background var(--t-fast);
}

.tq-save:hover {
  background: var(--accent-hover);
}

/* ============================================
   DEMO 03: ROACH MOTEL
   ============================================ */

.rm-compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  align-items: start;
}

.rm-col-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.75rem;
}

.rm-subscribe-zone {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

.rm-subscribe-btn {
  padding: 0.65rem 1.25rem;
  background: var(--accent);
  color: #1a1400;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background var(--t-fast);
  white-space: nowrap;
}

.rm-subscribe-btn:hover {
  background: var(--accent-hover);
}

.rm-done {
  font-size: 0.9rem;
  color: var(--success);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.rm-check {
  font-size: 1.1rem;
}

.rm-divider {
  width: 1px;
  background: var(--border);
  align-self: stretch;
  margin-top: 1.5rem;
}

.rm-steps {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.rm-step {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.6rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.75rem;
  font-family: var(--font-sans);
  color: var(--text-muted);
  line-height: 1.3;
  text-align: left;
  width: 100%;
  cursor: default;
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast);
}

.rm-step--locked {
  opacity: 0.4;
}

.rm-step--active {
  opacity: 1;
  border-color: var(--danger-mid);
  background: var(--danger-dim);
  color: var(--text);
  cursor: pointer;
}

.rm-step--active:hover {
  background: rgba(224, 82, 82, 0.18);
}

.rm-step--done {
  opacity: 0.6;
  color: var(--text-dim);
}

.rm-step--done .rm-step-arrow {
  display: none;
}

.rm-step-n {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--danger);
  font-weight: 500;
  width: 14px;
  flex-shrink: 0;
  text-align: center;
}

.rm-step-arrow {
  margin-left: auto;
  color: var(--danger);
  font-size: 1rem;
  line-height: 1;
  flex-shrink: 0;
}

.rm-instruction {
  font-size: 0.78rem;
  color: var(--text-dim);
  text-align: center;
  margin-top: 1.25rem;
  font-style: italic;
}

/* ============================================
   DEMO 04: MISDIRECTION
   ============================================ */

.md-pricing {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
  align-items: end;
}

.md-plan {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
}

.md-plan--featured {
  background: var(--card);
  border-color: var(--accent);
  border-width: 2px;
  padding-top: 2rem;
  box-shadow: 0 0 24px rgba(212, 168, 67, 0.1);
}

.md-badge {
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #1a1400;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 0 0 6px 6px;
  white-space: nowrap;
}

.md-plan-name {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.md-plan-price {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
}

.md-plan-price span {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-dim);
}

.md-features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.md-features li {
  font-size: 0.73rem;
  color: var(--text-muted);
  padding-left: 0.9rem;
  position: relative;
}

.md-features li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--text-dim);
}

.md-btn {
  width: 100%;
  padding: 0.55rem 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 7px;
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}

.md-btn--primary {
  background: var(--accent);
  color: #1a1400;
  border: none;
}

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

.md-btn--ghost {
  background: none;
  color: var(--text-dim);
  border: 1px solid var(--border-light);
}

.md-btn--ghost:hover {
  color: var(--text-muted);
  border-color: var(--text-dim);
}

/* ============================================
   DEMO 05: FALSE URGENCY
   ============================================ */

.fu-product {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 1rem;
  align-items: start;
}

.fu-thumb {
  width: 80px;
  height: 80px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  flex-shrink: 0;
}

.fu-thumb svg {
  width: 48px;
  height: 48px;
}

.fu-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.25rem;
  line-height: 1.3;
}

.fu-price {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.fu-signals {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
}

.fu-signal {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.3rem 0.5rem;
}

.fu-signal--time {
  border-color: var(--danger-mid);
  background: var(--danger-dim);
  color: var(--text);
}

.fu-signal--stock {
  border-color: rgba(212, 168, 67, 0.3);
  background: var(--accent-dim);
  color: var(--text);
}

.fu-icon {
  font-size: 0.9rem;
  line-height: 1;
}

#fu-countdown {
  color: var(--danger);
  font-weight: 700;
}

.fu-buy {
  display: block;
  width: 100%;
  padding: 0.65rem 1rem;
  background: var(--accent);
  color: #1a1400;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background var(--t-fast);
}

.fu-buy:hover {
  background: var(--accent-hover);
}

/* ============================================
   DEMO 06: HIDDEN COSTS
   ============================================ */

.hc-step-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.75rem;
}

.hc-product-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.875rem;
}

.hc-thumb {
  width: 56px;
  height: 56px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  flex-shrink: 0;
}

.hc-thumb svg {
  width: 36px;
  height: 36px;
}

.hc-item-name {
  font-size: 0.85rem;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 0.25rem;
  line-height: 1.3;
}

.hc-item-price {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}

.hc-continue {
  display: block;
  width: 100%;
  padding: 0.65rem 1rem;
  background: var(--accent);
  color: #1a1400;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background var(--t-fast);
}

.hc-continue:hover {
  background: var(--accent-hover);
}

.hc-breakdown {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 1rem;
}

.hc-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 0.875rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.hc-line:last-child {
  border-bottom: none;
}

.hc-line--fee {
  color: var(--danger);
  background: var(--danger-dim);
}

.hc-line--total {
  font-weight: 700;
  color: var(--text);
  font-size: 0.95rem;
  background: var(--card);
}

.hc-buy {
  display: block;
  width: 100%;
  padding: 0.65rem 1rem;
  background: var(--accent);
  color: #1a1400;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background var(--t-fast);
}

.hc-buy:hover {
  background: var(--accent-hover);
}

/* ============================================
   STATS GRID
   ============================================ */

.dark-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-top: 3rem;
}

.dark-stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.dark-stat-num {
  font-family: var(--font-serif);
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1;
  color: var(--danger);
}

.dark-stat-unit {
  font-size: 1.5rem;
  font-weight: 700;
}

.dark-stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  flex: 1;
}

.dark-stat-source {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-top: 0.25rem;
}

/* ============================================
   RESEARCH LIST
   ============================================ */

.research-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 3rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

.research-card {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2rem;
  padding: 2rem;
  border-bottom: 1px solid var(--border);
  background: var(--card);
  transition: background var(--t-fast);
}

.research-card:last-child {
  border-bottom: none;
}

.research-card:hover {
  background: var(--card-hover);
}

.research-year {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-dim);
  line-height: 1.2;
  padding-top: 0.2rem;
}

.research-authors {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.research-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.6rem;
  line-height: 1.4;
}

.research-body p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
}

/* ============================================
   NEXT EXHIBIT CTA
   ============================================ */

.next-exhibit-section {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 6rem 0;
}

.next-exhibit-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
}

.next-exhibit-text {
  max-width: 520px;
}

.next-exhibit-text h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.next-exhibit-text p {
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.next-exhibit-num {
  font-family: var(--font-serif);
  font-size: 10rem;
  font-weight: 900;
  line-height: 1;
  color: var(--border);
  user-select: none;
  flex-shrink: 0;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1100px) {
  .dark-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .content-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .content-aside {
    position: static;
  }

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

  .next-exhibit-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 2rem;
  }

  .next-exhibit-num {
    font-size: 6rem;
  }

  .md-pricing {
    grid-template-columns: 1fr;
  }

  .md-plan--featured {
    padding-top: 2rem;
  }
}

@media (max-width: 680px) {
  .dark-stats-grid {
    grid-template-columns: 1fr;
  }

  .research-card {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .rm-compare {
    grid-template-columns: 1fr;
  }

  .rm-divider {
    display: none;
  }

  .fu-product {
    grid-template-columns: 1fr;
  }

  .fu-thumb {
    width: 60px;
    height: 60px;
  }
}