/* ============================================================
   ABBI DIGITAL: Section styles
   ============================================================ */

/* ============================================================
   HERO (shared)
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: 76px;
  overflow: hidden;
}
.hero-variant { display: none; width: 100%; position: relative; }
.hero-variant.active { display: block; }

/* Kinetic dot-field background (shared by A & C) */
.hero-a .dotfield {
  position: absolute; inset: -100px;
  z-index: 0;
  background-image: radial-gradient(rgba(24,21,23,0.17) 1.5px, transparent 1.5px);
  background-size: 18px 18px;
  -webkit-mask-image: radial-gradient(ellipse 56% 72% at 33% 44%, #000 22%, transparent 74%);
  mask-image: radial-gradient(ellipse 56% 72% at 33% 44%, #000 22%, transparent 74%);
  pointer-events: none;
  will-change: transform;
}
.hero-a .container { position: relative; z-index: 1; }
@media (prefers-reduced-motion: no-preference) {
  .hero-a .dotfield { animation: dotDrift 26s ease-in-out infinite alternate; }
}
@keyframes dotDrift {
  from { background-position: 0 0; }
  to { background-position: 36px 26px; }
}

.hero-eyebrow { margin-bottom: 26px; }

/* Two-beat headline reveal: pure CSS, autoplays on load and on variant switch.
   Resting state is VISIBLE so content never hides if animation can't run. */
.beat { display: block; }
.hero-cta { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

@keyframes beatIn { from { opacity: 0; transform: translateY(0.4em); } to { opacity: 1; transform: none; } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: no-preference) {
  .hero-variant.active .beat { animation: beatIn 0.7s var(--ease) both; }
  .hero-variant.active .beat-2 { animation-delay: 0.28s; }
  .hero-variant.active .hero-sub { animation: fadeUp 0.6s var(--ease) 0.5s both; }
  .hero-variant.active .hero-cta { animation: fadeUp 0.6s var(--ease) 0.62s both; }
}

/* ---- Variant A: particle convergence (split) ---- */
.hero-a .hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: stretch;
}
.hero-a .hero-text { display: flex; flex-direction: column; justify-content: center; }
.hero-a h1 {
  font-size: clamp(33px, 4.3vw, 58px);
  line-height: 1.04;
  letter-spacing: -0.035em;
}
.hero-a .hero-sub {
  margin-top: 26px;
  font-size: 18px;
  color: var(--ink-60);
  max-width: 44ch;
}
.hero-a .hero-cta { margin-top: 32px; }
.hero-a .hero-visual { display: flex; }

/* ---- Animated diagnostic stage (dark, balanced tech + outcome) ---- */
.hero-stage {
  position: relative;
  width: 100%;
  min-height: 480px;
  align-self: stretch;
  border-radius: var(--radius-lg);
  background: radial-gradient(125% 120% at 78% 0%, #251f2d 0%, #19161c 52%);
  border: 1px solid rgba(243,240,238,0.09);
  overflow: hidden;
  box-shadow: 0 44px 90px -44px rgba(24,21,23,0.55);
  display: flex;
}
.stage-grid {
  position: absolute; inset: 0;
  background-image: radial-gradient(rgba(243,240,238,0.09) 1.2px, transparent 1.2px);
  background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(ellipse 110% 85% at 72% 18%, #000 28%, transparent 82%);
  mask-image: radial-gradient(ellipse 110% 85% at 72% 18%, #000 28%, transparent 82%);
}
.stage-glow {
  position: absolute; width: 440px; height: 440px;
  right: -130px; top: -150px;
  background: radial-gradient(circle, rgba(83,68,250,0.22), transparent 62%);
  filter: blur(12px); pointer-events: none;
}
.stage-inner {
  position: relative; z-index: 2;
  width: 100%;
  padding: clamp(22px, 3vw, 34px);
  display: flex; flex-direction: column; justify-content: center;
  gap: 14px;
}
.stage-head {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--paper-on-dark-40);
  margin-bottom: 4px;
}
.diag-pulse { width: 9px; height: 9px; border-radius: 50%; background: var(--light-blue); }
@media (prefers-reduced-motion: no-preference) {
  .diag-pulse { animation: diagPulse 2s ease-out infinite; }
}
@keyframes diagPulse {
  0% { box-shadow: 0 0 0 0 rgba(21,157,255,0.5); }
  70% { box-shadow: 0 0 0 9px rgba(21,157,255,0); }
  100% { box-shadow: 0 0 0 0 rgba(21,157,255,0); }
}
.stage-step { margin-left: auto; color: var(--paper-on-dark-40); font-variant-numeric: tabular-nums; }
.diag-block { transition: opacity 0.45s var(--ease), transform 0.45s var(--ease); }
.diag-block.out { opacity: 0; transform: translateY(-10px); }
.diag-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--paper-on-dark-40);
  margin-bottom: 10px;
}
.diag-label.answer { color: var(--light-blue); }
.diag-need {
  background: rgba(243,240,238,0.96);
  color: var(--black);
  border-radius: var(--radius-md);
  padding: 18px 20px;
}
.diag-need-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 1.5vw, 21px);
  letter-spacing: -0.015em;
  line-height: 1.16;
}
.diag-arrow { display: flex; justify-content: center; padding: 2px 0; }
.diag-track {
  width: 2px; height: 30px;
  background: rgba(243,240,238,0.14);
  border-radius: 2px; position: relative; overflow: hidden;
}
.diag-runner {
  position: absolute; left: 0; right: 0; height: 45%; top: -45%;
  background: linear-gradient(var(--light-blue), transparent);
}
@media (prefers-reduced-motion: no-preference) {
  .diag-runner { animation: runDown 1.4s var(--ease) infinite; }
}
@keyframes runDown { 0% { top: -45%; } 100% { top: 100%; } }
.diag-answer {
  background: rgba(83,68,250,0.10);
  border: 1px solid rgba(83,68,250,0.34);
  border-radius: var(--radius-md);
  padding: 18px 20px;
}
.diag-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.diag-chips .ac {
  font-family: var(--font-mono);
  font-size: 12px; font-weight: 700;
  padding: 7px 13px;
  border-radius: var(--radius-pill);
  background: rgba(243,240,238,0.06);
  border: 1px solid rgba(243,240,238,0.16);
  color: var(--warm-white);
  opacity: 0; transform: translateY(8px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.diag-answer.show .ac { opacity: 1; transform: none; }
.diag-answer.show .ac:nth-child(2) { transition-delay: 0.1s; }
.diag-answer.show .ac:nth-child(3) { transition-delay: 0.2s; }
.diag-answer.show .ac:nth-child(4) { transition-delay: 0.3s; }
.diag-valid {
  margin-top: 14px;
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.04em;
  color: var(--green);
  opacity: 0;
  transition: opacity 0.4s var(--ease) 0.38s;
}
.diag-valid .gp { width: 8px; height: 8px; border-radius: 50%; background: var(--green); }
.diag-answer.show .diag-valid { opacity: 1; }

/* ---- Variant B: blueprint / architectural ---- */
.hero-b {
  background: var(--black);
  color: var(--warm-white);
}
.hero-b .hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: stretch;
}
.hero-b .hero-text { display: flex; flex-direction: column; justify-content: center; }
.hero-b .hero-visual { display: flex; }
.hero-b h1 {
  font-size: clamp(34px, 4.6vw, 62px);
  line-height: 1.04;
  letter-spacing: -0.035em;
}
.hero-b .hero-sub { margin-top: 26px; font-size: 18px; color: var(--paper-on-dark); max-width: 42ch; }
.hero-b .hero-cta { margin-top: 32px; }
.hero-b .eyebrow { color: var(--light-blue); }
.hero-b .eyebrow::before { background: var(--light-blue); }
.blueprint {
  position: relative;
  width: 100%;
  min-height: 480px;
  align-self: stretch;
  border: 1px solid var(--line-on-dark);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(rgba(243,240,238,0.05) 1px, transparent 1px) 0 0 / 100% 40px,
    linear-gradient(90deg, rgba(243,240,238,0.05) 1px, transparent 1px) 0 0 / 40px 100%;
  overflow: hidden;
}
.bp-glow {
  position: absolute; inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(83,68,250,0.4), transparent 55%);
}
.bp-block {
  position: absolute;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(243,240,238,0.18);
  background: rgba(83,68,250,0.16);
  backdrop-filter: blur(2px);
}
@keyframes blockIn { from { opacity: 0; transform: translateY(16px) scale(0.96); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: no-preference) {
  .hero-b.active .bp-block { animation: blockIn 0.6s var(--ease) both; }
  .hero-b.active .bp-block:nth-child(3) { animation-delay: 0.3s; }
  .hero-b.active .bp-block:nth-child(4) { animation-delay: 0.45s; }
  .hero-b.active .bp-block:nth-child(5) { animation-delay: 0.6s; }
}
.bp-b1 { left: 13%; top: 18%; width: 38%; height: 22%; background: var(--gradient-blue-purple); border-color: transparent; }
.bp-b2 { left: 18%; top: 46%; width: 30%; height: 16%; }
.bp-b3 { right: 12%; top: 32%; width: 30%; height: 30%; background: rgba(21,157,255,0.18); }
.bp-b4 { right: 16%; bottom: 14%; width: 26%; height: 14%; }
.bp-tag {
  position: absolute;
  bottom: 9%; left: 13%;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--paper-on-dark);
  display: flex; align-items: center; gap: 8px;
}
.bp-tag .gp { width: 8px; height: 8px; border-radius: 50%; background: var(--green); }

/* ---- Variant C: centered kinetic statement ---- */
.hero-c { text-align: center; }
.hero-c .dotfield {
  position: absolute; inset: 0;
  background-image: radial-gradient(var(--ink-12) 1.4px, transparent 1.4px);
  background-size: 28px 28px;
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 45%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse 70% 70% at 50% 45%, #000 30%, transparent 75%);
  pointer-events: none;
}
.hero-c .hero-inner { position: relative; max-width: 980px; margin-inline: auto; }
.hero-c .hero-eyebrow { justify-content: center; display: flex; }
.hero-c h1 {
  font-size: clamp(40px, 6.4vw, 86px);
  line-height: 1.02;
  letter-spacing: -0.04em;
}
.hero-c .hero-sub {
  margin: 32px auto 0;
  font-size: 20px;
  color: var(--ink-60);
  max-width: 56ch;
}
.hero-c .hero-cta { margin-top: 40px; justify-content: center; }
.hero-c .chip-orbit {
  margin-top: 56px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  max-width: 760px;
  margin-inline: auto;
}
.hero-c .o-chip {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--ink-12);
  background: rgba(255,255,255,0.5);
  color: var(--ink-60);
  transition: border-color 0.18s, color 0.18s;
}
@keyframes chipIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: no-preference) {
  .hero-c.active .o-chip { animation: chipIn 0.5s var(--ease) both; }
  .hero-c.active .o-chip:nth-child(2) { animation-delay: 0.05s; }
  .hero-c.active .o-chip:nth-child(3) { animation-delay: 0.1s; }
  .hero-c.active .o-chip:nth-child(4) { animation-delay: 0.15s; }
  .hero-c.active .o-chip:nth-child(5) { animation-delay: 0.2s; }
  .hero-c.active .o-chip:nth-child(6) { animation-delay: 0.25s; }
  .hero-c.active .o-chip:nth-child(7) { animation-delay: 0.3s; }
  .hero-c.active .o-chip:nth-child(8) { animation-delay: 0.35s; }
  .hero-c.active .o-chip:nth-child(9) { animation-delay: 0.4s; }
}
.hero-c .o-chip:hover { border-color: var(--blue); color: var(--blue); }
.hero-c .o-chip.accent { border-color: var(--blue-20); color: var(--blue); background: var(--blue-12); }

@media (max-width: 880px) {
  .hero-a .hero-grid, .hero-b .hero-grid { grid-template-columns: 1fr; gap: 24px; }
  .hero-a .hero-text, .hero-b .hero-text { justify-content: flex-start; }
  .hero-stage, .blueprint { min-height: 380px; margin-top: 8px; }
}

/* ============================================================
   SECTION HEADER (reused)
   ============================================================ */
.sec-head { max-width: 760px; margin-bottom: 56px; }
.sec-head.center { margin-inline: auto; text-align: center; }
.sec-head .eyebrow { margin-bottom: 20px; }
.sec-head h2 {
  font-size: clamp(30px, 4.4vw, 52px);
  letter-spacing: -0.03em;
}
.sec-head p { margin-top: 20px; font-size: 19px; color: var(--ink-60); }
.on-dark .sec-head p, .sec-head.on-dark p { color: var(--paper-on-dark); }

/* ============================================================
   2. LE POINT DE DEPART (raw demand cloud)
   ============================================================ */
.reframe { background: var(--warm-white); }
.demand-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 14px 16px;
  max-width: 1000px;
  margin: 10px auto 0;
  padding: 10px 0;
}
.demand-pill {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  color: var(--ink-60);
  background: #fff;
  border: 1px solid var(--ink-12);
  border-radius: var(--radius-pill);
  padding: 11px 20px;
  box-shadow: var(--shadow-sm);
  transform: rotate(var(--r, 0deg));
  transition: transform 0.55s var(--ease), opacity 0.55s var(--ease), border-color 0.2s, color 0.2s;
  white-space: nowrap;
  cursor: default;
}
.demand-pill.big { font-size: 19px; font-weight: 600; padding: 13px 24px; color: var(--black); }
.demand-pill.muted { background: var(--warm-white-2); color: var(--ink-45); box-shadow: none; }
/* calmer resting state once the section reveals */
.demand-cloud.is-in .demand-pill { transform: rotate(calc(var(--r, 0deg) * 0.45)); }
.demand-pill:hover { transform: rotate(0deg) translateY(-2px) !important; border-color: var(--blue-20); color: var(--black); }
.reframe-note {
  margin: 42px auto 0;
  max-width: 66ch;
  text-align: center;
  font-size: 17px;
  color: var(--ink-60);
}
.reframe-cue { color: var(--blue); font-weight: 600; }
@media (max-width: 620px) {
  .demand-pill { font-size: 14px; padding: 9px 15px; }
  .demand-pill.big { font-size: 15px; padding: 10px 17px; }
}

/* ============================================================
   3. VOS BESOINS (need to answer resolver)
   ============================================================ */
.needs { background: var(--warm-white-2); }
.resolver {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}
/* ---- left: selectable need list ---- */
.resolver-list { display: flex; flex-direction: column; gap: 8px; }
.rn-item {
  display: flex;
  align-items: center;
  gap: 14px;
  text-align: left;
  width: 100%;
  background: var(--warm-white);
  border: 1px solid var(--ink-12);
  border-radius: var(--radius-md);
  padding: 15px 18px;
  cursor: pointer;
  color: var(--black);
  font-family: var(--font-body);
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.rn-item:hover { border-color: var(--blue-20); transform: translateX(2px); }
.rn-item:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.rn-icon {
  width: 38px; height: 38px; flex: none;
  border-radius: var(--radius-sm);
  background: var(--blue-12);
  color: var(--blue);
  display: grid; place-items: center;
  transition: background 0.2s, color 0.2s;
}
.rn-icon svg { width: 20px; height: 20px; }
.rn-num {
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--ink-45);
  flex: none;
}
.rn-label {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.25;
}
.rn-chevron { width: 18px; height: 18px; flex: none; color: var(--ink-45); transition: transform 0.2s var(--ease), color 0.2s; }
.rn-item:hover .rn-chevron { transform: translateX(3px); color: var(--blue); }
.rn-item.is-active {
  background: #fff;
  border-color: var(--blue);
  box-shadow: var(--shadow-md);
}
.rn-item.is-active .rn-icon { background: var(--blue); color: #fff; }
.rn-item.is-active .rn-num { color: var(--blue); }
.rn-item.is-active .rn-chevron { transform: rotate(90deg); color: var(--blue); }
/* ---- right: answer panel ---- */
.resolver-panel {
  position: sticky;
  top: 96px;
  background: var(--black);
  color: var(--warm-white);
  border-radius: var(--radius-xl);
  padding: 30px 32px 26px;
  overflow: hidden;
  min-height: 340px;
  display: flex;
  flex-direction: column;
}
.rp-thread {
  position: absolute; inset: 0;
  background: radial-gradient(120% 95% at 100% 0%, rgba(83,68,250,0.20), transparent 58%);
  pointer-events: none;
}
.rp-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; position: relative;
}
.rp-kicker {
  font-family: var(--font-mono);
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--light-blue);
  display: inline-flex; align-items: center; gap: 9px;
}
.rp-count {
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--paper-on-dark-40);
}
.rp-need {
  position: relative;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 22px 0 24px;
  max-width: 24ch;
}
.rp-answers {
  position: relative;
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-bottom: auto;
}
.rp-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px; font-weight: 700;
  padding: 9px 14px;
  border-radius: var(--radius-pill);
  background: rgba(243,240,238,0.08);
  border: 1px solid var(--line-on-dark);
  color: var(--warm-white);
}
.rp-tag .gp { width: 7px; height: 7px; border-radius: 50%; background: var(--green); flex: none; }
.rp-foot {
  position: relative;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--line-on-dark);
}
.rp-valid {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 14px; color: var(--paper-on-dark);
}
.rp-valid .gp { width: 8px; height: 8px; border-radius: 50%; background: var(--green); flex: none; }
.rp-cta { padding: 12px 20px; font-size: 15px; }
/* swap animation */
.rp-need, .rp-answers, .rp-valid { transition: opacity 0.26s var(--ease), transform 0.26s var(--ease); }
.resolver-panel.swapping .rp-need,
.resolver-panel.swapping .rp-answers,
.resolver-panel.swapping .rp-valid { opacity: 0; transform: translateY(8px); }
.needs-foot { margin-top: 36px; display: flex; justify-content: center; }
@media (max-width: 860px) {
  .resolver { grid-template-columns: 1fr; }
  .resolver-panel { position: static; }
}

/* ============================================================
   4. METHOD TIMELINE
   ============================================================ */
.method { background: var(--warm-white); }
.method-timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 16px;
}
.method-rail {
  position: absolute;
  top: 31px; left: 6%; right: 6%;
  height: 2px;
  background: var(--ink-12);
}
.method-rail-fill {
  position: absolute; inset: 0;
  background: var(--gradient-lightblue-blue);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 1.1s var(--ease);
}
.method-timeline.is-in .method-rail-fill { transform: scaleX(1); }
.method-step { position: relative; padding-top: 0; }
.method-dot {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--warm-white);
  border: 2px solid var(--ink-12);
  display: grid; place-items: center;
  color: var(--ink-45);
  position: relative;
  z-index: 2;
  transition: border-color 0.4s var(--ease), color 0.4s var(--ease), background 0.4s var(--ease), transform 0.4s var(--ease);
}
.method-dot svg { width: 26px; height: 26px; }
.method-step.lit .method-dot {
  border-color: var(--blue);
  color: var(--blue);
  background: #fff;
  transform: scale(1.04);
}
.method-step.lit:last-child .method-dot {
  background: var(--gradient-blue-purple);
  color: var(--warm-white);
  border-color: transparent;
}
.method-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--ink-45);
  margin: 22px 0 8px;
}
.method-step.lit .method-num { color: var(--blue); }
.method-step h3 { font-size: 23px; letter-spacing: -0.02em; }
.method-step p { margin-top: 10px; font-size: 15px; color: var(--ink-60); }
.method-roadmap {
  margin-top: 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--blue-20);
  background: #fff;
  padding: 14px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s var(--ease) 0.6s, transform 0.5s var(--ease) 0.6s;
  box-shadow: var(--shadow-md);
}
.method-timeline.is-in .method-roadmap { opacity: 1; transform: none; }
.mr-bar { height: 7px; border-radius: var(--radius-pill); margin-bottom: 7px; }
.mr-bar.b1 { width: 100%; background: var(--blue); }
.mr-bar.b2 { width: 72%; background: var(--light-blue); }
.mr-bar.b3 { width: 48%; background: var(--warm-white-3); }
.mr-foot { display: flex; align-items: center; gap: 6px; margin-top: 8px; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--green); }
.mr-foot .gp { width: 7px; height: 7px; border-radius: 50%; background: var(--green); }
.method-foot { margin-top: 48px; }
@media (max-width: 820px) {
  .method-timeline { grid-template-columns: 1fr 1fr; gap: 32px; }
  .method-rail { display: none; }
}
@media (max-width: 480px) { .method-timeline { grid-template-columns: 1fr; } }

/* ============================================================
   5. POSSIBLE ANSWERS (DARK)
   ============================================================ */
.answers {
  background: var(--black);
  color: var(--warm-white);
  overflow: hidden;
}
.answers-stage { position: relative; }
.answers-center {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 44px;
  position: relative;
  z-index: 2;
}
.answers-center .eyebrow { justify-content: center; display: flex; margin-bottom: 20px; }
.answers-center h2 { font-size: clamp(30px, 4.4vw, 52px); letter-spacing: -0.03em; text-wrap: normal; }
.answers-center p { margin-top: 18px; color: var(--paper-on-dark); font-size: 19px; }
.answers-glow {
  position: absolute;
  width: 760px; height: 520px;
  left: 50%; top: 30%;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(83,68,250,0.18), rgba(54,34,140,0.10) 45%, transparent 70%);
  filter: blur(10px);
  pointer-events: none;
}
.answers-lead { padding-block: clamp(72px, 10vw, 108px); }
.answers-lead .answers-center { margin-bottom: 0; max-width: 780px; }
.answers-cue {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; margin-top: 36px;
  border-radius: 50%;
  border: 1px solid var(--line-on-dark);
  color: var(--paper-on-dark);
  position: relative; z-index: 2;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), transform 0.2s var(--ease);
}
.answers-cue svg { width: 22px; height: 22px; }
.answers-cue:hover { color: var(--warm-white); border-color: rgba(243,240,238,0.4); transform: translateY(2px); }

/* ============================================================
   6. EXPERTISE SPECTRUM (organized by finality)
   ============================================================ */
.spectrum { background: var(--warm-white); }
.spectrum-bands { margin-top: 12px; }
.sp-band {
  display: grid;
  grid-template-columns: 268px 1fr;
  gap: clamp(24px, 4vw, 48px);
  padding: 34px 0;
  border-top: 1px solid var(--ink-12);
  align-items: start;
}
.sp-band:last-child { border-bottom: 1px solid var(--ink-12); }
.sp-side { position: sticky; top: 100px; }
.sp-fam-idx { font-family: var(--font-mono); font-size: 13px; color: var(--blue); letter-spacing: 0.1em; }
.sp-side h3 { font-family: var(--font-display); font-size: 19px; letter-spacing: -0.015em; margin-top: 10px; line-height: 1.15; white-space: nowrap; }
.sp-side p { font-size: 14px; color: var(--ink-45); margin-top: 12px; max-width: 27ch; }
.sp-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sp-card {
  display: flex; gap: 16px; align-items: flex-start;
  background: #fff; border: 1px solid var(--ink-12);
  border-radius: var(--radius-md); padding: 20px 22px;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease), transform 0.2s var(--ease);
}
.sp-card:hover { border-color: var(--blue-20); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.sp-ic {
  width: 40px; height: 40px; border-radius: var(--radius-sm);
  background: var(--blue-12); color: var(--blue);
  display: grid; place-items: center; flex: 0 0 auto;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}
.sp-card:hover .sp-ic { background: var(--blue); color: #fff; }
.sp-ic svg { width: 21px; height: 21px; }
.sp-card h4 { font-family: var(--font-display); font-size: 16px; letter-spacing: -0.01em; line-height: 1.1; }
.sp-out { font-size: 13.5px; color: var(--ink-60); margin-top: 5px; line-height: 1.45; }
.sp-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 11px; }
.sp-tag {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.02em;
  color: var(--ink-60); background: var(--ink-08);
  padding: 4px 9px; border-radius: var(--radius-pill); white-space: nowrap;
}
.spectrum-foot {
  margin-top: 32px; display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em; color: var(--ink-45);
}
.spectrum-foot .gp { width: 8px; height: 8px; border-radius: 50%; background: var(--green); flex: none; }
@media (max-width: 820px) {
  .sp-band { grid-template-columns: 1fr; gap: 18px; padding: 28px 0; }
  .sp-side { position: static; }
  .sp-side p { max-width: none; }
}
@media (max-width: 560px) { .sp-cards { grid-template-columns: 1fr; } }

/* ============================================================
   7. CASE STUDIES (DARK)
   ============================================================ */
.cases { background: var(--black); color: var(--warm-white); }
.cases .sec-head h2 { color: var(--warm-white); }
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.case-card {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-on-dark);
  background: linear-gradient(180deg, rgba(243,240,238,0.05), rgba(243,240,238,0.02));
  padding: 26px;
  overflow: hidden;
  min-height: 380px;
  display: flex;
  flex-direction: column;
}
.case-card .cc-shot {
  height: 150px;
  border-radius: var(--radius-md);
  margin-bottom: 22px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-on-dark);
}
.case-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--light-blue);
}
.case-card h3 { font-size: 22px; margin: 12px 0 16px; letter-spacing: -0.02em; }
.case-flip { position: relative; flex: 1; }
.case-state { transition: opacity 0.4s var(--ease), transform 0.4s var(--ease); }
.case-demande .cs-label, .case-reponse .cs-label {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--paper-on-dark-40);
  margin-bottom: 6px;
}
.case-demande p { color: var(--paper-on-dark); font-size: 15px; }
.case-reponse {
  position: absolute; inset: 0;
  opacity: 0; transform: translateY(10px);
}
.case-reponse .cs-label { color: var(--green); }
.case-reponse p { color: var(--warm-white); font-size: 15px; }
.case-card:hover .case-demande { opacity: 0; transform: translateY(-10px); }
.case-card:hover .case-reponse { opacity: 1; transform: none; }
.case-metrics {
  margin-top: 20px;
  display: flex;
  gap: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line-on-dark);
}
.case-metric .cm-val {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 26px;
  color: var(--warm-white);
}
.case-metric .cm-val .gp { color: var(--green); }
.case-metric .cm-label { font-size: 12px; color: var(--paper-on-dark-40); }
.case-hover-hint {
  position: absolute; top: 22px; right: 22px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--paper-on-dark-40);
  display: flex; align-items: center; gap: 6px;
}
.cases-foot { margin-top: 36px; display: flex; justify-content: center; }
@media (max-width: 900px) { .cases-grid { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; } }

/* ============================================================
   8. BUDGET FORMULA
   ============================================================ */
.budget { background: var(--warm-white); }
.budget-formula {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1.1fr;
  gap: 14px;
  align-items: stretch;
  margin-top: 12px;
}
.formula-block {
  border-radius: var(--radius-lg);
  border: 1px solid var(--ink-12);
  background: var(--warm-white);
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}
.budget-formula.is-in .formula-block { opacity: 1; transform: none; }
.budget-formula.is-in .fb-2 { transition-delay: 0.18s; }
.budget-formula.is-in .fb-3 { transition-delay: 0.36s; }
.budget-formula.is-in .fb-result { transition-delay: 0.56s; }
.formula-block .fb-icon {
  width: 42px; height: 42px;
  border-radius: var(--radius-sm);
  background: var(--blue-12);
  color: var(--blue);
  display: grid; place-items: center;
}
.formula-block .fb-icon svg { width: 22px; height: 22px; }
.formula-block .fb-label {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-45);
}
.formula-block .fb-title { font-family: var(--font-display); font-weight: 700; font-size: 19px; letter-spacing: -0.01em; }
.formula-block .fb-desc { font-size: 13px; color: var(--ink-60); }
.formula-op {
  display: grid; place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 30px;
  color: var(--ink-45);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.budget-formula.is-in .formula-op { opacity: 1; }
.budget-formula.is-in .formula-op.op-2 { transition-delay: 0.3s; }
.budget-formula.is-in .formula-op.op-eq { transition-delay: 0.48s; }
.fb-result {
  background: var(--gradient-blue-purple);
  border-color: transparent;
  color: var(--warm-white);
  position: relative;
  overflow: hidden;
}
.fb-result .fb-icon { background: rgba(243,240,238,0.16); color: var(--warm-white); }
.fb-result .fb-label { color: var(--paper-on-dark); }
.fb-result .fb-desc { color: var(--paper-on-dark); }
.fb-result .fb-validate {
  display: flex; align-items: center; gap: 7px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em;
  color: var(--green);
}
.fb-result .fb-validate .gp { width: 8px; height: 8px; border-radius: 50%; background: var(--green); }
.budget-foot { margin-top: 40px; }
@media (max-width: 920px) {
  .budget-formula { grid-template-columns: 1fr 1fr; }
  .formula-op { display: none; }
  .fb-result { grid-column: span 2; }
}
@media (max-width: 520px) { .budget-formula { grid-template-columns: 1fr; } .fb-result { grid-column: span 1; } }

/* ============================================================
   9. FINAL CTA
   ============================================================ */
.final-cta { padding-block: 0; }
.cta-panel {
  position: relative;
  border-radius: var(--radius-xl);
  background: var(--gradient-blue-purple);
  color: var(--warm-white);
  padding: clamp(48px, 8vw, 92px);
  overflow: hidden;
  text-align: center;
}
.cta-drift {
  position: absolute; width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(21,157,255,0.28), transparent 60%);
  top: -40%; left: 20%;
  pointer-events: none;
  animation: ctaDrift 14s ease-in-out infinite alternate;
}
@keyframes ctaDrift {
  0% { transform: translate(-10%, 0); }
  100% { transform: translate(20%, 18%); }
}
@media (prefers-reduced-motion: reduce) { .cta-drift { animation: none; } }
.cta-panel h2 { font-size: clamp(30px, 5vw, 56px); letter-spacing: -0.03em; position: relative; }
.cta-panel p { margin: 22px auto 0; max-width: 56ch; font-size: 19px; color: rgba(243,240,238,0.85); position: relative; }
.cta-panel .hero-cta { justify-content: center; margin-top: 38px; position: relative; }
.cta-panel .btn-secondary { color: var(--warm-white); border-color: rgba(243,240,238,0.4); }
.cta-panel .btn-secondary:hover { border-color: var(--warm-white); background: rgba(243,240,238,0.08); }

/* ============================================================
   10. FAQ
   ============================================================ */
.faq { background: var(--warm-white); }
.faq-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(24px, 5vw, 64px); align-items: start; }
.faq-list { display: flex; flex-direction: column; }
.faq-item { border-bottom: 1px solid var(--ink-12); }
.faq-q {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.2vw, 22px);
  letter-spacing: -0.01em;
  color: var(--black);
}
.faq-icon {
  flex: none;
  width: 30px; height: 30px;
  border-radius: 50%;
  border: 1.5px solid var(--ink-12);
  display: grid; place-items: center;
  color: var(--blue);
  position: relative;
  transition: background 0.2s, border-color 0.2s;
}
.faq-icon::before, .faq-icon::after {
  content: ""; position: absolute;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.25s var(--ease), opacity 0.2s;
}
.faq-icon::before { width: 12px; height: 2px; }
.faq-icon::after { width: 2px; height: 12px; }
.faq-item.open .faq-icon { background: var(--blue); border-color: var(--blue); color: var(--warm-white); }
.faq-item.open .faq-icon::after { transform: rotate(90deg); opacity: 0; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.28s var(--ease); }
.faq-a-inner { padding-bottom: 24px; color: var(--ink-60); font-size: 16px; max-width: 60ch; }
.faq-side h2 { font-size: clamp(28px, 4vw, 46px); letter-spacing: -0.03em; }
.faq-side p { margin-top: 18px; color: var(--ink-60); }
.faq-side .btn { margin-top: 26px; }
@media (max-width: 820px) { .faq-grid { grid-template-columns: 1fr; } }