/* ==========================================================================
   Colour Guide — page styles (loaded only on /colour-guide)
   Sections follow the page order: hero → sub-nav → opening → step 01 (quiz,
   undertone cards) → step 02 (filters, shade cards) → texture band →
   step 03 (look picker) → step 04 (harmony/contrast) → closing.
   ========================================================================== */

/* Leave room for header + sticky sub-nav when jumping to anchors. */
html {
  scroll-padding-top: calc(var(--header-h) + 5rem);
}

/* ---------- Hero --------------------------------------------------------- */
.cg-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(4rem, 3rem + 5vw, 7.5rem) clamp(3rem, 2rem + 4vw, 6rem);
}
/* Soft glow behind the ribbon */
.cg-hero::before {
  content: '';
  position: absolute;
  inset: auto -10% -40% 40%;
  height: 80%;
  background: radial-gradient(closest-side, rgb(210 85 47 / 0.22), transparent);
  pointer-events: none;
}
.cg-hero__inner {
  position: relative;
  display: grid;
  gap: 3rem;
  align-items: center;
}
.cg-hero__copy {
  display: grid;
  gap: 1.5rem;
  justify-items: start;
}
.cg-hero__eyebrow {
  color: var(--gold-soft);
}
.cg-hero__title {
  font-size: clamp(3rem, 1.6rem + 6.5vw, 7.5rem);
  line-height: 0.95;
}
.cg-hero__sub {
  font-size: var(--step-1);
  color: var(--muted-light);
  max-width: 30rem;
}
.cg-hero__steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
}
.cg-hero__steps a {
  color: var(--on-night);
  border-bottom: 1px solid rgb(246 240 232 / 0.3);
  padding-bottom: 2px;
  transition: border-color 0.2s ease;
}
.cg-hero__steps a:hover {
  border-color: var(--accent);
}

/* The "ribbon": one tall hair strand per shade */
.cg-ribbon {
  display: flex;
  gap: 0.6rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scrollbar-width: none;
  margin-inline: calc(var(--gutter) * -1);
  padding-inline: var(--gutter);
}
.cg-ribbon::-webkit-scrollbar {
  display: none;
}
.cg-ribbon li {
  flex: 0 0 auto;
}
.cg-ribbon__strand {
  position: relative;
  display: block;
  width: 4.25rem;
  height: 15rem;
  border-radius: 999px;
  overflow: hidden;
  box-shadow: 0 0 0 1px rgb(246 240 232 / 0.12);
  transition:
    transform 0.6s var(--ease),
    box-shadow 0.3s ease;
}
.cg-ribbon__strand:hover,
.cg-ribbon__strand:focus-visible {
  transform: translateY(-0.75rem);
  box-shadow: 0 0 0 2px var(--gold-soft);
}
.cg-ribbon__label {
  position: absolute;
  inset: auto 0 1rem 0;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-inline: auto;
  width: max-content;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #fff;
  text-shadow: 0 1px 6px rgb(0 0 0 / 0.6);
}
.cg-ribbon__label span {
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0;
}
@media (min-width: 1024px) {
  .cg-hero__inner {
    grid-template-columns: 1.15fr 1fr;
    gap: 4rem;
  }
  .cg-ribbon {
    overflow: visible;
    margin: 0;
    padding: 0;
    justify-content: flex-end;
    gap: 0.75rem;
  }
  .cg-ribbon__strand {
    width: clamp(3.5rem, 1rem + 3vw, 4.75rem);
    height: clamp(22rem, 16rem + 10vw, 30rem);
  }
  /* Stagger the strands into a gentle wave. */
  .cg-ribbon li {
    margin-top: calc(sin(calc(var(--i) * 52deg)) * 2.5rem + 2.5rem);
  }
  @media (prefers-reduced-motion: no-preference) {
    .cg-ribbon li {
      animation: fade-up 1s var(--ease) both;
      animation-delay: calc(var(--i) * 80ms + 200ms);
    }
  }
}

/* ---------- Sticky step navigation -------------------------------------- */
.cg-subnav {
  position: sticky;
  top: var(--header-h);
  z-index: 30;
  background: color-mix(in srgb, var(--cream) 95%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--sand);
}
.cg-subnav__list {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-block: 0.75rem;
  margin-inline: calc(var(--gutter) * -1);
  padding-inline: var(--gutter);
}
.cg-subnav__list .chip {
  white-space: nowrap;
  min-height: 2.25rem;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}
.cg-subnav .chip[aria-current='location'] {
  background: var(--espresso);
  border-color: var(--espresso);
  color: var(--cream);
}
@media (min-width: 1024px) {
  .cg-subnav__list {
    justify-content: center;
  }
}

/* ---------- Opening ------------------------------------------------------ */
.cg-opening__grid {
  display: grid;
  gap: 1rem;
}
@media (min-width: 1024px) {
  .cg-opening__grid {
    grid-template-columns: 1fr 1.1fr;
    gap: 5rem;
    align-items: start;
  }
}
.cg-pillars {
  display: grid;
  gap: 2rem;
  margin-top: clamp(3rem, 2rem + 3vw, 5rem);
}
@media (min-width: 768px) {
  .cg-pillars {
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
  }
}
.cg-pillar {
  display: grid;
  gap: 0.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--espresso);
}
.cg-pillar__num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.5rem;
  color: var(--accent-strong);
}
.cg-pillar__title {
  font-size: var(--step-2);
}
.cg-pillar__text {
  color: var(--espresso-soft);
}

/* ---------- Step 01 — Quiz ---------------------------------------------- */
.quiz {
  display: grid;
  gap: 2rem;
  padding: clamp(1.5rem, 1rem + 2.5vw, 3rem);
  margin-bottom: clamp(2.5rem, 2rem + 2vw, 4rem);
  background: var(--paper);
  border: 1px solid var(--sand);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 60px -40px rgb(30 22 18 / 0.35);
}
.quiz__head {
  display: grid;
  gap: 0.5rem;
}
.quiz__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--accent-strong);
}
.quiz__title {
  font-size: var(--step-3);
}
.quiz__intro {
  color: var(--muted);
}
.quiz__questions {
  display: grid;
  gap: 2rem;
}
@media (min-width: 1024px) {
  .quiz__questions {
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
  }
}
.quiz__q {
  border: 0;
  padding: 0;
  min-width: 0;
}
.quiz__legend {
  display: flex;
  gap: 0.75rem;
  padding: 0;
  margin-bottom: 1rem;
  font-weight: 600;
  line-height: 1.45;
}
.quiz__num {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: 1.35rem;
  line-height: 1;
  color: var(--accent-strong);
}
.quiz__q[data-missing='true'] .quiz__legend {
  color: var(--danger);
}
.quiz__options {
  display: grid;
  gap: 0.5rem;
}
.quiz__option {
  position: relative;
  display: block;
  cursor: pointer;
}
/* The real radio stays in the DOM (keyboard + screen readers) but is hidden;
   the <span> next to it is the visible, styled answer. */
.quiz__option input {
  position: absolute;
  opacity: 0;
  inset: 0;
  cursor: pointer;
}
.quiz__option span {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 3rem;
  padding: 0.7rem 1rem;
  border: 1px solid var(--sand-deep);
  border-radius: var(--radius);
  font-size: 0.9375rem;
  transition:
    border-color 0.2s ease,
    background-color 0.2s ease;
}
.quiz__option span::before {
  content: '';
  flex-shrink: 0;
  width: 1.1rem;
  height: 1.1rem;
  border: 1px solid var(--sand-deep);
  border-radius: 50%;
  transition:
    border 0.2s ease,
    background 0.2s ease;
}
.quiz__option:hover span {
  border-color: var(--espresso);
}
.quiz__option input:checked + span {
  border-color: var(--espresso);
  background: var(--cream-deep);
}
.quiz__option input:checked + span::before {
  border: 5px solid var(--accent-strong);
}
.quiz__option input:focus-visible + span {
  outline: 2px solid var(--accent-strong);
  outline-offset: 2px;
}
.quiz__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
}
.quiz__progress {
  font-size: 0.875rem;
  color: var(--muted);
}
.quiz__result {
  display: grid;
  gap: 0.75rem;
  padding: 1.75rem;
  border-radius: var(--radius);
  background: var(--night);
  color: var(--on-night);
  animation: fade-up 0.6s var(--ease) both;
}
.quiz__result:focus {
  outline: none;
}
.quiz__result .eyebrow {
  color: var(--gold-soft);
}
.quiz__result-title {
  font-family: var(--font-display);
  font-size: var(--step-3);
  line-height: 1.1;
}
.quiz__result-title em {
  color: #e2734f;
}
.quiz__result-text {
  color: var(--muted-light);
  max-width: 40rem;
}
.quiz__result .btn-row {
  margin-top: 0.5rem;
}
.quiz__result .btn-outline {
  border-color: rgb(246 240 232 / 0.5);
}
.quiz__result .btn-outline:hover {
  background: var(--cream);
  color: var(--espresso);
}
.quiz__result .btn-primary {
  background: var(--accent-strong);
}
.quiz__result .btn-primary:hover {
  background: var(--cream);
  color: var(--espresso);
}

/* ---------- Step 01 — Undertone cards ----------------------------------- */
.undertone-grid {
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 1024px) {
  .undertone-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}
.undertone-card {
  position: relative;
  display: grid;
  gap: 1.25rem;
  align-content: start;
  padding: clamp(1.5rem, 1.2rem + 1.5vw, 2.25rem);
  background: var(--paper);
  border: 1px solid var(--sand);
  border-radius: var(--radius-lg);
  transition:
    transform 0.5s var(--ease),
    opacity 0.4s ease,
    box-shadow 0.4s ease,
    border-color 0.3s ease;
}
.undertone-card:focus {
  outline: none;
}
.undertone-card[data-matched='true'] {
  border-color: var(--accent-strong);
  box-shadow:
    0 0 0 1px var(--accent-strong),
    0 30px 60px -30px rgb(180 68 31 / 0.45);
  transform: translateY(-6px);
}
.undertone-card[data-dimmed='true'] {
  opacity: 0.6;
}
.undertone-card__match {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  display: none;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: var(--accent-strong);
  color: var(--on-accent);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.undertone-card[data-matched='true'] .undertone-card__match {
  display: inline-flex;
}
.undertone-card__label {
  color: var(--accent-strong);
}
.undertone-card__name {
  font-size: var(--step-4);
  font-style: italic;
  margin-top: -0.5rem;
}
.undertone-card__band {
  height: 0.6rem;
  border-radius: 999px;
}
.undertone-card__desc {
  color: var(--espresso-soft);
}
.undertone-card__jewellery {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: var(--cream);
  border-radius: var(--radius);
  font-size: 0.9375rem;
}
.metal {
  flex-shrink: 0;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgb(0 0 0 / 0.08);
}
.metal--gold {
  background: linear-gradient(135deg, #f3dc9b, #b8935a 55%, #8a6a35);
}
.metal--silver {
  background: linear-gradient(135deg, #fafafa, #b9bec4 55%, #7c8188);
}
.metal--both {
  background: linear-gradient(135deg, #f3dc9b, #b8935a 49%, #b9bec4 51%, #7c8188);
}
.undertone-card__look .eyebrow,
.undertone-card__matches .eyebrow {
  color: var(--muted);
  margin-bottom: 0.65rem;
}
.undertone-card__look ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
}
.undertone-card__look li {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.9375rem;
}
.undertone-card__look li::before {
  content: '';
  width: 0.35rem;
  height: 0.35rem;
  background: var(--gold);
  transform: rotate(45deg);
}
.shade-chip {
  min-height: 2.25rem;
  padding-left: 0.4rem;
  background: var(--cream);
}
.shade-chip .swatch-dot {
  width: 1.35rem;
  height: 1.35rem;
  margin: 0;
  border: 0;
}
.shade-chip:hover {
  background: var(--espresso);
  color: var(--cream);
}

/* ---------- Step 02 — Filters & shade cards ----------------------------- */
.shade-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1.25rem 2.5rem;
  padding-bottom: 1.5rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--sand);
}
.shade-filters__group {
  display: grid;
  gap: 0.6rem;
}
.shade-filters__label {
  color: var(--muted);
}
.shade-filters__count {
  margin-left: auto;
  font-size: 0.875rem;
  color: var(--muted);
}
.shade-grid {
  display: grid;
  gap: 3rem 1.5rem;
}
@media (min-width: 768px) {
  .shade-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1280px) {
  .shade-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 4rem 2rem;
  }
}
.shade-card {
  display: grid;
  align-content: start;
  border-radius: var(--radius-lg);
  scroll-margin-top: calc(var(--header-h) + 6rem);
}
.shade-card[data-flash='true'] {
  animation: flash 1.6s var(--ease);
}
@keyframes flash {
  0%,
  60% {
    box-shadow: 0 0 0 3px var(--accent-strong);
  }
  100% {
    box-shadow: 0 0 0 3px transparent;
  }
}
.shade-card__swatch {
  aspect-ratio: 5 / 4;
  border-radius: var(--radius-lg);
}
.shade-card__number {
  position: absolute;
  left: 1.25rem;
  bottom: 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 2.5rem + 3vw, 5.5rem);
  line-height: 1;
  color: #fff;
  text-shadow: 0 2px 20px rgb(0 0 0 / 0.35);
}
.shade-card__strip {
  position: absolute;
  right: 1.25rem;
  bottom: 1.25rem;
  display: flex;
}
.shade-card__strip span {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  border: 2px solid rgb(255 255 255 / 0.85);
  margin-left: -0.35rem;
}
.shade-card__body {
  display: grid;
  gap: 0.75rem;
  padding-top: 1.5rem;
}
.shade-card__family {
  color: var(--muted);
}
.shade-card__name {
  font-size: var(--step-3);
}
.shade-card__name a:hover {
  color: var(--accent-strong);
}
.shade-card__hook {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--step-1);
  color: var(--accent-strong);
  line-height: 1.35;
}
.shade-card__desc {
  color: var(--espresso-soft);
}
.spec-table {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: 0.5rem;
  border-top: 1px solid var(--sand);
}
.spec-table > div {
  display: grid;
  gap: 0.2rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--sand);
}
.spec-table > div:nth-child(odd):not(.spec-table__wide) {
  padding-right: 1rem;
}
.spec-table__wide {
  grid-column: 1 / -1;
}
.spec-table dt {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.spec-table dd {
  margin: 0;
  font-size: 0.9375rem;
}
.spec-table__dimension {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.meter {
  display: inline-flex;
  gap: 3px;
}
.meter span {
  width: 0.9rem;
  height: 0.3rem;
  border-radius: 2px;
  background: var(--sand);
}
.meter span.on {
  background: var(--accent-strong);
}
.shade-card__cta {
  margin-top: 0.5rem;
  justify-self: start;
}
.shade-card__cta:hover {
  color: var(--accent-strong);
}
.shade-empty {
  display: grid;
  justify-items: start;
  gap: 1rem;
  padding: 2rem 0;
  font-family: var(--font-display);
  font-size: var(--step-2);
}

/* ---------- Colour, with texture ---------------------------------------- */
.cg-texture__grid {
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 768px) {
  .cg-texture__grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
}
.texture-card {
  position: relative;
  display: block;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.texture-card__media {
  display: block;
  aspect-ratio: 4 / 5;
}
@media (min-width: 1024px) {
  .texture-card__media {
    aspect-ratio: 5 / 6;
  }
}
.texture-card__media > * {
  transition: transform 1.2s var(--ease);
}
.texture-card:hover .texture-card__media > * {
  transform: scale(1.05);
}
.texture-card__body {
  position: absolute;
  inset: auto 0 0 0;
  display: grid;
  gap: 0.5rem;
  justify-items: start;
  padding: clamp(1.5rem, 1rem + 2vw, 2.5rem);
  background: linear-gradient(to top, rgb(20 14 11 / 0.85), transparent);
  color: #fff;
}
.texture-card__shade {
  color: var(--gold-soft);
}
.texture-card__name {
  font-family: var(--font-display);
  font-size: var(--step-3);
  line-height: 1.05;
}
.texture-card__cta {
  margin-top: 0.5rem;
}
.texture-card:hover .texture-card__cta .icon {
  transform: translateX(4px);
}

/* ---------- Step 03 — Look picker --------------------------------------- */
.look-picker {
  border-top: 1px solid var(--espresso);
}
.look-picker li {
  border-bottom: 1px solid var(--sand-deep);
}
.look-row {
  display: grid;
  gap: 0.75rem;
  padding-block: clamp(1.25rem, 1rem + 1vw, 2rem);
  transition: color 0.25s ease;
}
@media (min-width: 768px) {
  .look-row {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 2rem;
  }
}
.look-row__statement {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.1rem + 1.8vw, 2.75rem);
  line-height: 1.1;
  transition: transform 0.5s var(--ease);
}
.look-row__shade {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.look-row__dot {
  width: 1.75rem;
  height: 1.75rem;
  margin: 0;
  border: 0;
}
.look-row__arrow {
  transition: transform 0.4s var(--ease);
}
.look-row:hover,
.look-row:focus-visible {
  color: var(--accent-strong);
}
.look-row:hover .look-row__statement {
  transform: translateX(0.5rem);
  font-style: italic;
}
.look-row:hover .look-row__arrow,
.look-row:focus-visible .look-row__arrow {
  transform: translateX(0.6rem);
}

/* ---------- Step 04 — Harmony or contrast ------------------------------- */
.hc-grid {
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 768px) {
  .hc-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
}
.hc-panel {
  position: relative;
  display: grid;
  gap: 1rem;
  align-content: start;
  padding: clamp(1.75rem, 1.2rem + 2.5vw, 3.5rem);
  border-radius: var(--radius-lg);
  background: var(--cream);
}
.hc-panel--contrast {
  background: var(--night);
  color: var(--on-night);
}
.hc-panel__badge {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
}
.hc-panel__label {
  color: var(--accent-strong);
}
.hc-panel--contrast .hc-panel__label {
  color: var(--gold-soft);
}
.hc-panel__title {
  font-size: var(--step-4);
  font-style: italic;
}
.hc-panel--contrast .hc-panel__title {
  color: #e2734f;
}
.hc-panel__text {
  font-size: var(--step-1);
  color: var(--espresso-soft);
}
.hc-panel--contrast .hc-panel__text {
  color: var(--muted-light);
}
.hc-panel__example {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  align-items: baseline;
  padding-top: 1rem;
  border-top: 1px solid var(--sand-deep);
  font-size: 0.9375rem;
}
.hc-panel--contrast .hc-panel__example {
  border-color: rgb(246 240 232 / 0.18);
}
.hc-panel__example .eyebrow {
  color: var(--muted);
}
.hc-panel--contrast .hc-panel__example .eyebrow {
  color: var(--gold-soft);
}
/* Two overlapping circles: skin + hair. Harmony blends, contrast pops. */
.hc-visual {
  display: flex;
  margin-bottom: 1rem;
}
.hc-visual span {
  width: clamp(4rem, 3rem + 3vw, 6rem);
  aspect-ratio: 1;
  border-radius: 50%;
}
.hc-visual span + span {
  margin-left: -1.5rem;
}
.hc-visual--harmony .hc-visual__skin {
  background: radial-gradient(circle at 30% 30%, #d8a57f, #a8714d);
}
.hc-visual--harmony .hc-visual__hair {
  background: radial-gradient(circle at 30% 30%, #b07a4a, #5d3f2c);
  mix-blend-mode: multiply;
}
.hc-visual--contrast .hc-visual__skin {
  background: radial-gradient(circle at 30% 30%, #7a4f38, #3f281c);
  box-shadow: 0 0 0 2px var(--night);
}
.hc-visual--contrast .hc-visual__hair {
  background: radial-gradient(circle at 30% 30%, #f4dcaa, #c99d62);
  box-shadow: 0 0 0 3px var(--night);
}

/* ---------- Closing note ------------------------------------------------- */
.cg-closing__inner {
  display: grid;
  justify-items: center;
  gap: 1.25rem;
  max-width: 52rem;
  text-align: center;
}
.cg-closing__diamond {
  width: 0.7rem;
  height: 0.7rem;
  background: var(--gold);
  transform: rotate(45deg);
}
.cg-closing__eyebrow {
  color: var(--accent-strong);
}
.cg-closing__title {
  font-size: var(--step-5);
}
.cg-closing__body {
  font-size: var(--step-1);
  color: var(--espresso-soft);
  max-width: 38rem;
}
.cg-closing__ctas {
  justify-content: center;
  margin-top: 1rem;
}