/* ============================================================
   Hair Artistry By Alex — Demo Site V1
   Locked spec: ../MERGE-decision.md
   Signature move: scroll-linked tonal temperature shift
   (page bg travels warm gold → champagne → icy pearl)
   ============================================================ */

/* ---------- 1. SIGNATURE MOVE (BUILD FIRST) ---------- */

@property --page-warmth {
  syntax: "<color>";
  inherits: true;
  initial-value: hsl(40, 55%, 87%);
}

@keyframes tonal-journey {
  0%   { --page-warmth: hsl(40, 55%, 87%); }   /* warm sandy-gold — "before" */
  50%  { --page-warmth: hsl(45, 35%, 93%); }   /* champagne — mid-process */
  100% { --page-warmth: hsl(270, 18%, 95%); }  /* icy pearl — "result" */
}

html {
  background-color: var(--page-warmth);
  animation: tonal-journey both linear;
  animation-timeline: scroll(root);
}

@supports not (animation-timeline: scroll()) {
  html { background-color: hsl(45, 35%, 93%); }
}

@media (prefers-reduced-motion: reduce) {
  html {
    animation: none;
    background-color: #f7f4ef;
  }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- 2. TOKENS ---------- */

:root {
  --bg-static:    #f7f4ef;
  --surface:      rgba(255, 255, 255, 0.78);
  --surface-solid:#ffffff;
  --ink:          #1a1714;
  --ink-mute:     #5e5851;
  --ink-ghost:    #9c9388;
  --accent:       #c8437a;
  --accent-hover: #a93063;
  --accent-soft:  #f0b8cc;
  --signal:       #d63060;
  --whatsapp:     #25D366;
  --whatsapp-hover:#1ea957;
  --separator:    rgba(30, 24, 20, 0.10);
  --separator-strong: rgba(30, 24, 20, 0.22);

  --max:    1240px;
  --gutter: clamp(20px, 4vw, 56px);
  --radius: 8px;
  --radius-lg: 18px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- 3. RESET + BASE ---------- */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 400;
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  background-color: transparent; /* let html bg shine through */
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
}

img { max-width: 100%; height: auto; display: block; }

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

button { font-family: inherit; cursor: pointer; border: none; background: none; }

::selection { background: var(--accent); color: white; }

/* ---------- 4. DISPLAY TYPE (BODONI MODA) ---------- */

.display {
  font-family: 'Bodoni Moda', 'Times New Roman', serif;
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.05;
}

.mono {
  font-family: 'Space Mono', 'Courier New', monospace;
  font-feature-settings: "tnum" 1, "kern" 1;
  letter-spacing: -0.01em;
}

.eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* ---------- 5. NAV ---------- */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px var(--gutter);
  transition: transform 0.35s var(--ease), background 0.3s ease;
}

.nav.hidden { transform: translateY(-110%); }

.nav-brand {
  font-family: 'Bodoni Moda', serif;
  font-weight: 500;
  font-size: 20px;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.nav-brand em { color: var(--accent); font-style: normal; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  position: relative;
}

.nav-links a:not(.nav-book)::after {
  content: '';
  position: absolute;
  left: 0; bottom: -4px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s var(--ease);
}

.nav-links a:not(.nav-book):hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-book {
  background: var(--accent);
  color: white !important;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.02em;
  transition: background 0.2s ease, transform 0.2s ease;
}

.nav-book:hover { background: var(--accent-hover); transform: translateY(-1px); }

.nav-toggle {
  display: none;
  width: 28px; height: 22px;
  position: relative;
}

.nav-toggle span {
  position: absolute; left: 0; right: 0;
  height: 2px; background: var(--ink);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle span:nth-child(1) { top: 0; }
.nav-toggle span:nth-child(2) { top: 10px; }
.nav-toggle span:nth-child(3) { top: 20px; }

@media (max-width: 800px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
}

/* ---------- 6. SECTION SCAFFOLD ---------- */

section { padding: clamp(80px, 12vw, 140px) var(--gutter); }
.wrap { max-width: var(--max); margin: 0 auto; }

.section-head {
  max-width: 720px;
  margin-bottom: clamp(48px, 6vw, 80px);
}

.section-head .eyebrow { margin-bottom: 14px; display: inline-block; }

.section-head h2 {
  font-family: 'Bodoni Moda', serif;
  font-weight: 500;
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.05;
  margin-bottom: 18px;
  letter-spacing: -0.015em;
}

.section-head p {
  font-size: 18px;
  color: var(--ink-mute);
  max-width: 580px;
}

/* ---------- 7. HERO ---------- */

.hero {
  min-height: 100svh;
  display: grid;
  align-content: center;
  padding-top: 120px;
  padding-bottom: 80px;
  position: relative;
}

.hero-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero h1 {
  font-family: 'Bodoni Moda', serif;
  font-weight: 500;
  font-size: clamp(56px, 11vw, 128px);
  line-height: 0.92;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-bottom: 28px;
  max-width: 14ch;
}

.hero h1 em {
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}

.hero-lede {
  font-size: clamp(17px, 2vw, 21px);
  color: var(--ink-mute);
  max-width: 520px;
  margin-bottom: 14px;
  line-height: 1.5;
}

.hero-meta {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  margin-bottom: 36px;
}

.hero-price-anchor {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 14px 22px;
  margin-bottom: 32px;
  border: 1px solid var(--separator-strong);
  border-radius: var(--radius);
  background: var(--surface);
  backdrop-filter: blur(8px);
}

.hero-price-anchor .price-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-ghost);
}

.hero-price-anchor .price-value {
  font-family: 'Space Mono', monospace;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.01em;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 6px 20px rgba(200, 67, 122, 0.22);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(200, 67, 122, 0.34);
}

.btn-whatsapp {
  background: var(--whatsapp);
  color: white;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.22);
}

.btn-whatsapp:hover {
  background: var(--whatsapp-hover);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--separator-strong);
}

.btn-outline:hover {
  border-color: var(--ink);
  transform: translateY(-1px);
}

.btn .slot-time {
  font-family: 'Space Mono', monospace;
  font-weight: 700;
  opacity: 0.85;
  font-size: 13px;
}

.btn-arrow {
  width: 16px; height: 16px;
  transition: transform 0.2s ease;
}

.btn:hover .btn-arrow { transform: translateX(3px); }

/* ---------- 8. QUIZ (BLONDE DIRECTION FINDER) ---------- */

#quiz {
  background: linear-gradient(180deg, transparent 0%, rgba(255,255,255,0.6) 50%, transparent 100%);
}

.quiz-card {
  max-width: 760px;
  margin: 0 auto;
  background: var(--surface-solid);
  border-radius: var(--radius-lg);
  padding: clamp(36px, 5vw, 64px);
  box-shadow: 0 30px 80px -30px rgba(30, 24, 20, 0.18);
  border: 1px solid var(--separator);
  position: relative;
  overflow: hidden;
}

.quiz-progress {
  display: flex;
  gap: 8px;
  margin-bottom: 36px;
}

.quiz-progress span {
  flex: 1;
  height: 3px;
  background: var(--separator);
  border-radius: 999px;
  transition: background 0.3s ease;
}

.quiz-progress span.active { background: var(--accent); }

.quiz-step { display: none; }
.quiz-step.active { display: block; animation: fadeIn 0.5s var(--ease) both; }

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

.quiz-step .step-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.quiz-step h3 {
  font-family: 'Bodoni Moda', serif;
  font-weight: 500;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.1;
  margin-bottom: 28px;
  letter-spacing: -0.015em;
}

.quiz-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

.quiz-option {
  text-align: left;
  padding: 22px 24px;
  border: 1.5px solid var(--separator-strong);
  border-radius: var(--radius);
  background: white;
  color: var(--ink);
  transition: border 0.2s ease, background 0.2s ease, transform 0.2s ease;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.quiz-option strong {
  font-weight: 600;
  font-size: 16px;
  display: block;
}

.quiz-option span {
  font-size: 13px;
  color: var(--ink-mute);
}

.quiz-option:hover {
  border-color: var(--accent);
  background: rgba(200, 67, 122, 0.04);
  transform: translateY(-2px);
}

.quiz-result {
  text-align: center;
}

.quiz-result .result-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.quiz-result h3 {
  font-family: 'Bodoni Moda', serif;
  font-weight: 500;
  font-size: clamp(36px, 5vw, 54px);
  line-height: 1.05;
  margin-bottom: 18px;
}

.quiz-result h3 em { font-style: italic; color: var(--accent); }

.quiz-result p {
  font-size: 17px;
  color: var(--ink-mute);
  margin-bottom: 14px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.quiz-result .result-price {
  font-family: 'Space Mono', monospace;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 32px;
}

.quiz-result .result-ctas {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.quiz-restart {
  margin-top: 24px;
  font-size: 13px;
  color: var(--ink-ghost);
  text-decoration: underline;
  text-underline-offset: 4px;
  background: none;
  border: none;
}

.quiz-noscript {
  margin-top: 24px;
  padding: 20px 24px;
  background: rgba(255,255,255,0.6);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--ink-mute);
}

.quiz-noscript h4 {
  font-family: 'Bodoni Moda', serif;
  font-size: 20px;
  margin-bottom: 10px;
  color: var(--ink);
}

.quiz-noscript ul { list-style: none; padding-left: 0; }
.quiz-noscript li { padding: 6px 0; border-bottom: 1px solid var(--separator); }
.quiz-noscript li:last-child { border-bottom: none; }
.quiz-noscript strong { color: var(--ink); font-weight: 600; }

/* ---------- 9. SERVICES (TWO-SPEED PIN VIA CSS STICKY) ---------- */

.services-tier1 {
  display: grid;
  gap: clamp(60px, 8vw, 120px);
  margin-bottom: clamp(80px, 10vw, 120px);
}

.service-row {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(40px, 5vw, 80px);
  align-items: start;
}

.service-pin {
  position: sticky;
  top: 120px;
  align-self: start;
}

.service-pin .service-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.service-pin h3 {
  font-family: 'Bodoni Moda', serif;
  font-weight: 500;
  font-size: clamp(36px, 4.5vw, 52px);
  line-height: 1.0;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.service-pin .service-desc {
  font-size: 16px;
  color: var(--ink-mute);
  margin-bottom: 24px;
  max-width: 420px;
}

.service-pin .service-price {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 24px;
}

.service-pin .price-from {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-ghost);
}

.service-pin .price-amount {
  font-family: 'Space Mono', monospace;
  font-size: 30px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.service-includes {
  font-size: 13px;
  color: var(--ink-mute);
  margin-bottom: 28px;
  padding: 14px 18px;
  background: var(--surface);
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.service-includes strong {
  color: var(--ink);
  font-weight: 600;
}

.service-filmstrip {
  display: grid;
  gap: 16px;
}

.filmstrip-frame {
  aspect-ratio: 4 / 5;
  background: linear-gradient(135deg, var(--accent-soft), var(--surface-solid));
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--separator);
}

.filmstrip-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 40%, rgba(255,255,255,0.5), transparent 60%);
}

.filmstrip-frame .frame-label {
  position: absolute;
  left: 18px; bottom: 18px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink);
  background: rgba(255,255,255,0.85);
  padding: 6px 10px;
  border-radius: 4px;
  backdrop-filter: blur(4px);
}

.filmstrip-frame .frame-num {
  position: absolute;
  top: 16px; right: 18px;
  font-family: 'Bodoni Moda', serif;
  font-size: 38px;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  line-height: 1;
}

/* Alternate frame tints to suggest tonal journey within the filmstrip */
.filmstrip-frame:nth-child(1) { background: linear-gradient(135deg, hsl(40,55%,80%), hsl(35,40%,90%)); }
.filmstrip-frame:nth-child(2) { background: linear-gradient(135deg, hsl(42,45%,84%), hsl(45,30%,93%)); }
.filmstrip-frame:nth-child(3) { background: linear-gradient(135deg, hsl(50,30%,88%), hsl(55,20%,94%)); }
.filmstrip-frame:nth-child(4) { background: linear-gradient(135deg, hsl(60,18%,92%), hsl(180,15%,95%)); }
.filmstrip-frame:nth-child(5) { background: linear-gradient(135deg, hsl(220,16%,94%), hsl(270,18%,95%)); }

.services-tier2 {
  margin-top: 40px;
}

.services-tier2 h3 {
  font-family: 'Bodoni Moda', serif;
  font-weight: 500;
  font-size: 30px;
  margin-bottom: 28px;
  letter-spacing: -0.01em;
}

.services-tier2-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.service-card {
  display: flex;
  flex-direction: column;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--separator);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
  transition: border 0.2s ease, transform 0.2s ease;
}

.service-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.service-card .service-name {
  font-family: 'Bodoni Moda', serif;
  font-weight: 500;
  font-size: 22px;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.service-card .service-blurb {
  font-size: 13px;
  color: var(--ink-mute);
  margin-bottom: 18px;
  flex-grow: 1;
}

.service-card .service-card-price {
  font-family: 'Space Mono', monospace;
  font-weight: 700;
  font-size: 17px;
  color: var(--accent);
  margin-top: auto;
}

.afterpay-note {
  display: inline-block;
  margin-top: 28px;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--separator);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.afterpay-note::before {
  content: '◆';
  color: var(--accent);
  margin-right: 6px;
}

/* ---------- 10. PROCESS (HORIZONTAL SCROLL) ---------- */

.process-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(280px, 320px);
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 10px 4px 32px;
  margin: 0 calc(var(--gutter) * -1);
  padding-left: var(--gutter);
  padding-right: var(--gutter);
  scrollbar-width: thin;
  scrollbar-color: var(--separator-strong) transparent;
}

.process-track::-webkit-scrollbar { height: 6px; }
.process-track::-webkit-scrollbar-track { background: transparent; }
.process-track::-webkit-scrollbar-thumb { background: var(--separator-strong); border-radius: 4px; }

.process-step {
  scroll-snap-align: start;
  background: var(--surface-solid);
  border-radius: var(--radius);
  border: 1px solid var(--separator);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.process-step .step-img {
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--accent-soft) 0%, hsl(45, 35%, 92%) 100%);
  position: relative;
}

.process-step:nth-child(1) .step-img { background: linear-gradient(135deg, hsl(40,55%,82%), hsl(35,40%,90%)); }
.process-step:nth-child(2) .step-img { background: linear-gradient(135deg, hsl(42,45%,86%), hsl(45,30%,93%)); }
.process-step:nth-child(3) .step-img { background: linear-gradient(135deg, hsl(50,28%,89%), hsl(55,20%,94%)); }
.process-step:nth-child(4) .step-img { background: linear-gradient(135deg, hsl(60,16%,93%), hsl(180,15%,95%)); }
.process-step:nth-child(5) .step-img { background: linear-gradient(135deg, hsl(220,16%,94%), hsl(270,18%,95%)); }

.process-step .step-num {
  position: absolute;
  top: 18px; left: 22px;
  font-family: 'Bodoni Moda', serif;
  font-weight: 500;
  font-size: 56px;
  line-height: 1;
  color: rgba(255,255,255,0.85);
  letter-spacing: -0.02em;
}

.process-step .step-body {
  padding: 22px 24px 26px;
}

.process-step .step-title {
  font-family: 'Bodoni Moda', serif;
  font-weight: 500;
  font-size: 22px;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.process-step .step-text {
  font-size: 14px;
  color: var(--ink-mute);
  line-height: 1.55;
}

/* ---------- 11. TRANSFORMATIONS (HOVER-REVEAL GRID) ---------- */

.gallery-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}

.filter-btn {
  padding: 10px 18px;
  border-radius: 999px;
  background: transparent;
  border: 1.5px solid var(--separator-strong);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink-mute);
  transition: all 0.2s ease;
}

.filter-btn:hover { color: var(--ink); border-color: var(--ink); }

.filter-btn.active {
  background: var(--ink);
  border-color: var(--ink);
  color: white;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  grid-auto-rows: 1fr;
  gap: 18px;
}

.transform-card {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  background: var(--surface-solid);
  border: 1px solid var(--separator);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.transform-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 50px -20px rgba(30, 24, 20, 0.22);
}

.transform-card .card-after,
.transform-card .card-before {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: opacity 0.45s var(--ease);
}

/* placeholder gradients — swap with Alex's real photos at handover */
.transform-card.t-balayage-1 .card-after { background: linear-gradient(160deg, hsl(50,40%,80%) 0%, hsl(45,28%,68%) 60%, hsl(35,22%,52%) 100%); }
.transform-card.t-balayage-1 .card-before { background: linear-gradient(160deg, hsl(35,35%,52%) 0%, hsl(28,42%,38%) 100%); }

.transform-card.t-highlights-1 .card-after { background: linear-gradient(160deg, hsl(48,55%,82%) 0%, hsl(42,38%,70%) 100%); }
.transform-card.t-highlights-1 .card-before { background: linear-gradient(160deg, hsl(28,30%,50%) 0%, hsl(22,28%,38%) 100%); }

.transform-card.t-platinum-1 .card-after { background: linear-gradient(160deg, hsl(45,15%,92%) 0%, hsl(240,12%,84%) 100%); }
.transform-card.t-platinum-1 .card-before { background: linear-gradient(160deg, hsl(48,60%,55%) 0%, hsl(35,40%,40%) 100%); }

.transform-card.t-balayage-2 .card-after { background: linear-gradient(160deg, hsl(40,45%,76%) 0%, hsl(32,38%,58%) 100%); }
.transform-card.t-balayage-2 .card-before { background: linear-gradient(160deg, hsl(25,28%,42%) 0%, hsl(20,25%,30%) 100%); }

.transform-card.t-toner-1 .card-after { background: linear-gradient(160deg, hsl(48,30%,88%) 0%, hsl(45,18%,78%) 100%); }
.transform-card.t-toner-1 .card-before { background: linear-gradient(160deg, hsl(48,68%,68%) 0%, hsl(42,55%,55%) 100%); }

.transform-card.t-highlights-2 .card-after { background: linear-gradient(160deg, hsl(50,48%,80%) 0%, hsl(45,32%,66%) 100%); }
.transform-card.t-highlights-2 .card-before { background: linear-gradient(160deg, hsl(30,30%,55%) 0%, hsl(25,28%,42%) 100%); }

.transform-card .card-before { opacity: 0; }
.transform-card:hover .card-after { opacity: 0; }
.transform-card:hover .card-before { opacity: 1; }

.transform-card.show-before .card-after { opacity: 0; }
.transform-card.show-before .card-before { opacity: 1; }

.transform-card .card-toggle {
  position: absolute;
  top: 14px; right: 14px;
  z-index: 3;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(4px);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
  color: var(--ink);
  border: none;
}

.transform-card .card-info {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 2;
  padding: 28px 22px 22px;
  background: linear-gradient(to top, rgba(0,0,0,0.65), transparent);
  color: white;
}

.transform-card .card-service {
  font-family: 'Bodoni Moda', serif;
  font-weight: 500;
  font-size: 22px;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}

.transform-card .card-detail {
  font-size: 12px;
  letter-spacing: 0.08em;
  opacity: 0.85;
  text-transform: uppercase;
}

.gallery-cta {
  margin-top: 36px;
  text-align: center;
}

/* ---------- 12. REVIEWS ---------- */

#reviews { padding-top: clamp(100px, 14vw, 160px); padding-bottom: clamp(100px, 14vw, 160px); }

.reviews-banner {
  text-align: center;
  margin-bottom: clamp(48px, 6vw, 72px);
}

.reviews-stars {
  font-size: 28px;
  color: var(--accent);
  letter-spacing: 6px;
  margin-bottom: 18px;
  line-height: 1;
}

.reviews-headline {
  font-family: 'Bodoni Moda', serif;
  font-weight: 500;
  font-size: clamp(48px, 8vw, 92px);
  line-height: 1;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
  display: flex;
  justify-content: center;
  align-items: baseline;
  gap: 18px;
  flex-wrap: wrap;
}

.reviews-count {
  font-family: 'Bodoni Moda', serif;
  font-weight: 400;
  font-variation-settings: "wght" 400;
  animation: weight-pulse 6s ease-in-out infinite;
}

@keyframes weight-pulse {
  0%, 100% { font-variation-settings: "wght" 400; }
  50% { font-variation-settings: "wght" 700; }
}

.reviews-tag {
  font-size: clamp(20px, 2.5vw, 32px);
  font-style: italic;
  color: var(--ink-mute);
  font-weight: 400;
}

.reviews-subhead {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-ghost);
}

.reviews-track {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
  max-width: var(--max);
  margin: 0 auto;
}

.review-card {
  padding: 36px 32px;
  background: var(--surface-solid);
  border-radius: var(--radius-lg);
  border: 1px solid var(--separator);
  position: relative;
  display: flex;
  flex-direction: column;
}

.review-card::before {
  content: '"';
  position: absolute;
  top: -10px; left: 20px;
  font-family: 'Bodoni Moda', serif;
  font-size: 90px;
  line-height: 1;
  color: var(--accent);
  font-weight: 700;
}

.review-stars {
  color: var(--accent);
  font-size: 14px;
  letter-spacing: 3px;
  margin-bottom: 16px;
  margin-top: 12px;
}

.review-quote {
  font-family: 'Bodoni Moda', serif;
  font-style: italic;
  font-weight: 400;
  font-size: 19px;
  line-height: 1.45;
  color: var(--ink);
  margin-bottom: 20px;
  flex-grow: 1;
}

.review-attribution {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 12px;
  color: var(--ink-ghost);
  letter-spacing: 0.05em;
  margin-top: auto;
}

.review-attribution strong {
  color: var(--ink-mute);
  font-weight: 600;
}

.reviews-link {
  margin-top: 40px;
  text-align: center;
}

.reviews-link a {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.reviews-link a:hover { color: var(--accent-hover); }

/* ---------- 13. BOOK ---------- */

#book {
  text-align: center;
  background: linear-gradient(180deg, transparent 0%, rgba(255,255,255,0.6) 100%);
}

.book-card {
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(48px, 7vw, 88px) clamp(28px, 5vw, 64px);
  background: var(--surface-solid);
  border-radius: var(--radius-lg);
  border: 1px solid var(--separator);
  box-shadow: 0 30px 90px -30px rgba(30,24,20,0.2);
}

.book-card h2 {
  font-family: 'Bodoni Moda', serif;
  font-weight: 500;
  font-size: clamp(38px, 5vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}

.book-card h2 em { font-style: italic; color: var(--accent); }

.book-card p {
  font-size: 17px;
  color: var(--ink-mute);
  margin-bottom: 36px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.book-ctas {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.book-meta {
  display: flex;
  justify-content: center;
  gap: clamp(20px, 4vw, 48px);
  flex-wrap: wrap;
  padding-top: 28px;
  border-top: 1px solid var(--separator);
  font-size: 13px;
  color: var(--ink-mute);
}

.book-meta strong {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  margin-bottom: 4px;
}

/* ---------- 14. FAQ ---------- */

#faq { padding-top: clamp(60px, 8vw, 100px); padding-bottom: clamp(80px, 10vw, 120px); }

.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.faq-wrap details {
  border-top: 1px solid var(--separator-strong);
  padding: 22px 0;
}

.faq-wrap details:last-child { border-bottom: 1px solid var(--separator-strong); }

.faq-wrap summary {
  font-family: 'Bodoni Moda', serif;
  font-weight: 500;
  font-size: clamp(20px, 2.6vw, 26px);
  letter-spacing: -0.01em;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.faq-wrap summary::-webkit-details-marker { display: none; }

.faq-wrap summary::after {
  content: '+';
  font-family: 'Manrope', sans-serif;
  font-weight: 300;
  font-size: 28px;
  color: var(--accent);
  transition: transform 0.25s ease;
  line-height: 1;
}

.faq-wrap details[open] summary::after { transform: rotate(45deg); }

.faq-wrap .faq-answer {
  padding-top: 14px;
  font-size: 16px;
  color: var(--ink-mute);
  line-height: 1.65;
  max-width: 680px;
}

/* ---------- 15. FOOTER ---------- */

footer {
  padding: 64px var(--gutter) 32px;
  border-top: 1px solid var(--separator);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  max-width: var(--max);
  margin: 0 auto 48px;
}

.footer-brand {
  font-family: 'Bodoni Moda', serif;
  font-weight: 500;
  font-size: 24px;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.footer-brand em { color: var(--accent); font-style: normal; }

.footer-tagline {
  font-size: 14px;
  color: var(--ink-mute);
  max-width: 280px;
  line-height: 1.5;
}

.footer-col h5 {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  margin-bottom: 16px;
}

.footer-col p, .footer-col a {
  font-size: 14px;
  color: var(--ink-mute);
  display: block;
  margin-bottom: 6px;
  line-height: 1.55;
}

.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  max-width: var(--max);
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--separator);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--ink-ghost);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom a { color: inherit; }
.footer-bottom a:hover { color: var(--accent); }

/* ---------- 16. MOBILE OPTIMISATIONS ---------- */

@media (max-width: 900px) {
  .service-row {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .service-pin {
    position: static;
  }
  .reviews-headline { font-size: clamp(40px, 14vw, 64px); }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
}

@media (max-width: 600px) {
  .hero { padding-top: 100px; }
  .hero-ctas { width: 100%; }
  .hero-ctas .btn { flex: 1; justify-content: center; }
  .nav { padding: 16px 20px; }
  .nav-book { padding: 8px 16px; font-size: 12px; }
  .footer-grid { grid-template-columns: 1fr; }
  .quiz-options { grid-template-columns: 1fr; }
  .filmstrip-frame .frame-num { font-size: 28px; }
  .book-meta { gap: 18px; }
}

/* ---------- 17. MOBILE STICKY BOOK BAR ---------- */

.mobile-book-bar {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 90;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  background: var(--surface-solid);
  border-top: 1px solid var(--separator);
  box-shadow: 0 -10px 30px -10px rgba(30,24,20,0.18);
  gap: 10px;
  align-items: center;
}

.mobile-book-bar .slot-text {
  flex: 1;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink-mute);
  line-height: 1.3;
}

.mobile-book-bar .slot-text strong {
  display: block;
  font-family: 'Space Mono', monospace;
  font-size: 13px;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-top: 2px;
}

.mobile-book-bar .btn { padding: 12px 18px; font-size: 13px; flex-shrink: 0; }
.mobile-book-bar .btn-wa-icon { padding: 12px; }

@media (max-width: 700px) {
  .mobile-book-bar { display: flex; }
  body { padding-bottom: 80px; }
}

/* ---------- 18. UTILITY ---------- */

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}