/* =========================================================================
   DopamineDriven — Methodology / Research page
   /methodology
   ========================================================================= */

/* ── Page shell ──────────────────────────────────────────────────────────── */

.ddm-page {
  --col-max: 860px;
  --section-gap: 7rem;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
}

/* ── In-page sticky subnav ────────────────────────────────────────────────── */

.ddm-subnav {
  position: sticky;
  top: 62px; /* sits directly below the main nav */
  z-index: 40;
  background: rgba(10, 10, 10, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.ddm-subnav::-webkit-scrollbar { display: none; }

.ddm-subnav-link {
  flex-shrink: 0;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--faint);
  font-family: var(--font-mono);
  text-decoration: none;
  padding: 0.75rem 1.25rem;
  border-right: 1px solid var(--border);
  transition: color 160ms ease, background 160ms ease;
  white-space: nowrap;
}
.ddm-subnav-link:hover { color: var(--text); background: rgba(255,255,255,0.03); }
.ddm-subnav-link.is-active { color: var(--accent); }

/* ── Hero ─────────────────────────────────────────────────────────────────── */

.ddm-hero {
  padding: 7rem 1.5rem 5rem;
  max-width: var(--col-max);
  margin: 0 auto;
  position: relative;
}

.ddm-eyebrow {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  font-family: var(--font-mono);
  margin: 0 0 1.5rem;
}

.ddm-hero-h1 {
  font-size: clamp(2.6rem, 7vw, 4.5rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--text);
  margin: 0 0 1.5rem;
}

.ddm-hero-sub {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--muted);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 0 2.5rem;
}

.ddm-hero-stat-row {
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}

.ddm-hero-stat {}
.ddm-hero-stat-num {
  font-size: 2.4rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--text);
  font-family: var(--font-mono);
  line-height: 1;
  margin: 0 0 0.35rem;
}
.ddm-hero-stat-num span { color: var(--accent); }
.ddm-hero-stat-label {
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 500;
  line-height: 1.4;
}

/* ── Sections ─────────────────────────────────────────────────────────────── */

.ddm-section {
  padding: 5rem 1.5rem;
  border-top: 1px solid var(--border);
  scroll-margin-top: 110px;
}

.ddm-inner {
  max-width: var(--col-max);
  margin: 0 auto;
  position: relative;
}

.ddm-section-tag {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faint);
  font-family: var(--font-mono);
  margin: 0 0 0.75rem;
}

.ddm-section-num {
  font-size: 7rem;
  font-weight: 900;
  letter-spacing: -0.05em;
  color: rgba(255,255,255,0.03);
  font-family: var(--font-mono);
  line-height: 1;
  position: absolute;
  right: 0;
  top: -1.5rem;
  user-select: none;
  pointer-events: none;
}

.ddm-h2 {
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.15;
  margin: 0 0 1.25rem;
}

.ddm-h3 {
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}

.ddm-body {
  font-size: 0.97rem;
  color: var(--muted);
  line-height: 1.8;
  margin: 0 0 1.25rem;
  max-width: 680px;
}

.ddm-body:last-child { margin-bottom: 0; }

/* ── Disclaimer box ───────────────────────────────────────────────────────── */

.ddm-disclaimer-section {
  background: rgba(255,80,60,0.04);
}

.ddm-disclaimer-box {
  background: rgba(255,80,60,0.06);
  border: 1px solid rgba(255,80,60,0.25);
  border-radius: 20px;
  padding: 2.5rem;
}

.ddm-disclaimer-flag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,140,120,0.9);
  font-family: var(--font-mono);
  background: rgba(255,80,60,0.12);
  border: 1px solid rgba(255,80,60,0.3);
  border-radius: 6px;
  padding: 0.25rem 0.65rem;
  margin-bottom: 1.25rem;
}

.ddm-disclaimer-h2 {
  font-size: clamp(1.4rem, 3.5vw, 2rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  color: rgba(255,200,190,0.95);
  margin: 0 0 1rem;
}

.ddm-disclaimer-body {
  font-size: 0.93rem;
  color: rgba(255,200,190,0.7);
  line-height: 1.8;
  margin: 0 0 1rem;
  max-width: 640px;
}

.ddm-disclaimer-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,80,60,0.18);
}

.ddm-disclaimer-link {
  font-size: 0.8rem;
  font-weight: 700;
  color: rgba(255,160,140,0.9);
  text-decoration: none;
  padding: 0.4rem 0.875rem;
  border: 1px solid rgba(255,80,60,0.35);
  border-radius: 8px;
  font-family: var(--font-mono);
  transition: background 160ms ease, border-color 160ms ease;
}
.ddm-disclaimer-link:hover {
  background: rgba(255,80,60,0.12);
  border-color: rgba(255,80,60,0.55);
}

/* ── Three pillars (what the tools are) ──────────────────────────────────── */

.ddm-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.ddm-pillar {
  padding: 1.5rem;
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border);
  border-radius: 16px;
}

.ddm-pillar-icon {
  font-size: 1.6rem;
  margin-bottom: 0.875rem;
}

.ddm-pillar-title {
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 0 0 0.5rem;
}

.ddm-pillar-desc {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.65;
  margin: 0;
}

@media (max-width: 640px) {
  .ddm-pillars { grid-template-columns: 1fr; }
}

/* ── Research domain cards ────────────────────────────────────────────────── */

.ddm-domain-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2.5rem;
}

.ddm-domain-card {
  padding: 1.5rem 1.5rem 1.75rem;
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border);
  border-radius: 16px;
  position: relative;
  overflow: hidden;
  transition: border-color 200ms ease;
}
.ddm-domain-card:hover { border-color: var(--border-mid); }

.ddm-domain-tag {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: var(--font-mono);
  color: var(--faint);
  margin: 0 0 0.6rem;
}

.ddm-domain-title {
  font-size: 0.97rem;
  font-weight: 800;
  color: var(--text);
  margin: 0 0 0.5rem;
  letter-spacing: -0.01em;
}

.ddm-domain-body {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.65;
  margin: 0 0 0.875rem;
}

.ddm-domain-cite {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  color: var(--faint);
  margin: 0;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.ddm-domain-card-accent {
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--accent);
  opacity: 0.4;
}

.ddm-domain-card--steady .ddm-domain-card-accent { background: #00E8E8; }
.ddm-domain-card--spark  .ddm-domain-card-accent { background: #CCFF00; }
.ddm-domain-card--thread .ddm-domain-card-accent { background: #FF9500; }
.ddm-domain-card--all    .ddm-domain-card-accent { background: rgba(255,255,255,0.3); }

@media (max-width: 580px) {
  .ddm-domain-grid { grid-template-columns: 1fr; }
}

/* ── Effect size chart ────────────────────────────────────────────────────── */

.ddm-chart-intro {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.7;
  margin: 0 0 0.75rem;
  max-width: 600px;
}

.ddm-chart-note {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--faint);
  margin: 0 0 2.5rem;
}

.ddm-chart {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  margin-top: 2rem;
}

.ddm-chart-row {
  display: grid;
  grid-template-columns: 230px 1fr 52px;
  gap: 1rem;
  align-items: center;
}

.ddm-chart-label {
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 500;
  line-height: 1.35;
  text-align: right;
  padding-right: 0.25rem;
}
.ddm-chart-label strong {
  display: block;
  color: var(--text);
  font-weight: 700;
  font-size: 0.8rem;
}

.ddm-chart-track {
  height: 10px;
  background: rgba(255,255,255,0.05);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}

.ddm-chart-fill {
  height: 100%;
  border-radius: 6px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}
.ddm-chart-fill.is-visible { width: var(--bar-pct); }

.ddm-chart-fill--accent  { background: var(--accent); }
.ddm-chart-fill--cyan    { background: #00E8E8; }
.ddm-chart-fill--orange  { background: #FF9500; }
.ddm-chart-fill--red     { background: rgba(255,80,80,0.8); }
.ddm-chart-fill--muted   { background: rgba(255,255,255,0.25); }

.ddm-chart-val {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--muted);
  white-space: nowrap;
}

.ddm-chart-divider {
  height: 1px;
  background: var(--border);
  margin: 0.5rem 0;
  grid-column: 1 / -1;
}

.ddm-chart-section-label {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
  font-family: var(--font-mono);
  grid-column: 1 / -1;
  margin-top: 0.5rem;
}

@media (max-width: 600px) {
  .ddm-chart-row {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }
  .ddm-chart-label { text-align: left; }
  .ddm-chart-val { text-align: right; }
}

/* ── Tool methodology sections ────────────────────────────────────────────── */

.ddm-tool-sections {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  margin-top: 2.5rem;
}

.ddm-tool-card {
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
}

.ddm-tool-card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 1.75rem;
  border-bottom: 1px solid var(--border);
}

.ddm-tool-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--font-mono);
  padding: 0.25rem 0.7rem;
  border-radius: 6px;
  border: 1px solid currentColor;
}
.ddm-tool-badge--steady { color: #00E8E8; border-color: rgba(0,232,232,0.4); background: rgba(0,232,232,0.07); }
.ddm-tool-badge--spark  { color: #CCFF00; border-color: rgba(204,255,0,0.4);  background: rgba(204,255,0,0.07);  }
.ddm-tool-badge--thread { color: #FF9500; border-color: rgba(255,149,0,0.4); background: rgba(255,149,0,0.07); }

.ddm-tool-card-title {
  font-size: 1rem;
  font-weight: 800;
  margin: 0;
  color: var(--text);
}

.ddm-tool-card-body {
  padding: 1.75rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.ddm-tool-col-title {
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
  font-family: var(--font-mono);
  margin: 0 0 0.875rem;
}

.ddm-tool-col-body {
  font-size: 0.83rem;
  color: var(--muted);
  line-height: 1.75;
  margin: 0;
}

.ddm-technique-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.ddm-technique-item {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.5;
}

.ddm-technique-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 0.4rem;
}

.ddm-technique-dot--steady { background: #00E8E8; }
.ddm-technique-dot--spark  { background: #CCFF00; }
.ddm-technique-dot--thread { background: #FF9500; }

@media (max-width: 600px) {
  .ddm-tool-card-body { grid-template-columns: 1fr; gap: 1.25rem; }
}

/* ── AI transparency section ──────────────────────────────────────────────── */

.ddm-ai-constraints {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin: 2rem 0;
}

.ddm-constraint-card {
  padding: 1.1rem 1.25rem;
  border-radius: 12px;
  font-size: 0.82rem;
  line-height: 1.55;
}

.ddm-constraint-card--can {
  background: rgba(204,255,0,0.05);
  border: 1px solid rgba(204,255,0,0.2);
  color: rgba(204,255,0,0.8);
}
.ddm-constraint-card--can::before {
  content: 'CAN DO';
  display: block;
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  font-family: var(--font-mono);
  color: rgba(204,255,0,0.5);
  margin-bottom: 0.4rem;
}

.ddm-constraint-card--cannot {
  background: rgba(255,80,60,0.04);
  border: 1px solid rgba(255,80,60,0.18);
  color: rgba(255,180,168,0.8);
}
.ddm-constraint-card--cannot::before {
  content: 'CANNOT DO';
  display: block;
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  font-family: var(--font-mono);
  color: rgba(255,80,60,0.5);
  margin-bottom: 0.4rem;
}

@media (max-width: 560px) {
  .ddm-ai-constraints { grid-template-columns: 1fr; }
}

/* ── Prompt display block ─────────────────────────────────────────────────── */

.ddm-prompt-wrap {
  margin: 2rem 0;
}

.ddm-prompt-label {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
  font-family: var(--font-mono);
  margin: 0 0 0.5rem;
}

.ddm-prompt-block {
  background: rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  padding: 1.5rem 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
  position: relative;
  overflow: hidden;
}

.ddm-prompt-block .ddm-prompt-key {
  color: var(--accent);
  font-weight: 700;
}

.ddm-prompt-block .ddm-prompt-constraint {
  color: rgba(0,232,232,0.7);
}

.ddm-prompt-block .ddm-prompt-var {
  color: rgba(255,149,0,0.8);
}

/* ── Citations section ────────────────────────────────────────────────────── */

.ddm-citations {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

.ddm-citation {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.1rem 1.25rem;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color 180ms ease;
}
.ddm-citation:hover { border-color: var(--border-mid); }

.ddm-citation-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--accent);
  margin-top: 0.15rem;
  text-align: right;
}

.ddm-citation-text {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.7;
}

.ddm-citation-text strong {
  color: var(--text);
  font-weight: 600;
}

.ddm-citation-text em {
  color: rgba(255,255,255,0.4);
  font-style: italic;
}

.ddm-citation-text a {
  color: rgba(0,232,232,0.7);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.72rem;
}
.ddm-citation-text a:hover { color: #00E8E8; text-decoration: underline; }

.ddm-citation-finding {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.76rem;
  color: rgba(255,255,255,0.35);
  font-style: italic;
  line-height: 1.55;
}

/* ── Closing CTA ──────────────────────────────────────────────────────────── */

.ddm-footer-cta {
  padding: 6rem 1.5rem;
  text-align: center;
  border-top: 1px solid var(--border);
}

.ddm-footer-cta-h2 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  margin: 0 0 0.875rem;
}

.ddm-footer-cta-sub {
  font-size: 0.95rem;
  color: var(--muted);
  max-width: 440px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.ddm-footer-btns {
  display: flex;
  gap: 0.875rem;
  justify-content: center;
  flex-wrap: wrap;
}

.ddm-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: var(--accent);
  color: #000;
  font-weight: 800;
  font-size: 0.9rem;
  letter-spacing: -0.01em;
  border-radius: 12px;
  text-decoration: none;
  transition: opacity 160ms ease, transform 100ms ease;
}
.ddm-btn-primary:hover { opacity: 0.9; }
.ddm-btn-primary:active { transform: scale(0.98); }

.ddm-btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: transparent;
  color: var(--text);
  font-weight: 700;
  font-size: 0.9rem;
  border: 1px solid var(--border-mid);
  border-radius: 12px;
  text-decoration: none;
  transition: border-color 160ms ease, background 160ms ease;
}
.ddm-btn-ghost:hover { border-color: var(--text); background: rgba(255,255,255,0.04); }

/* ── Effect size chart animation trigger ──────────────────────────────────── */

.ddm-chart-fill {
  width: 0;
  transition: width 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}
.ddm-chart-fill.is-animated {
  width: var(--bar-pct);
}