/* ==========================================================================
   THE BALD GUY — Global Design System
   Prototype stylesheet. Structured with Shopify/Dawn conversion in mind:
   components map to sections, tokens map to theme settings.
   ========================================================================== */

/* ---------- Font import (freely available; system stack is the real fallback) ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

/* ---------- Design tokens ---------- */
:root{
  /* Color */
  --color-bg:            #F5F1E9;   /* warm off-white */
  --color-bg-alt:        #ECE5D8;   /* deeper warm off-white for alt sections */
  --color-surface:       #FFFFFF;
  --color-black:         #121110;
  --color-charcoal:      #2B2925;
  --color-grey:          #6F6A60;
  --color-grey-light:    #A79F8F;
  --color-border:        #DBD3C3;
  --color-border-dark:   #3A3733;
  --color-accent:        #8A6F4E;   /* restrained neutral/clay accent — sparing use only */

  --color-text:          var(--color-black);
  --color-text-muted:    var(--color-grey);
  --color-on-dark:       #F5F1E9;
  --color-on-dark-muted: #B4AEA0;

  /* Typography */
  --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --fs-xs:   clamp(0.75rem, 0.72rem + 0.15vw, 0.8125rem);
  --fs-sm:   clamp(0.875rem, 0.84rem + 0.18vw, 0.9375rem);
  --fs-base: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --fs-md:   clamp(1.125rem, 1.06rem + 0.3vw, 1.3125rem);
  --fs-lg:   clamp(1.375rem, 1.25rem + 0.6vw, 1.75rem);
  --fs-xl:   clamp(1.75rem, 1.5rem + 1.2vw, 2.5rem);
  --fs-2xl:  clamp(2.25rem, 1.8rem + 2.2vw, 3.5rem);
  --fs-3xl:  clamp(2.75rem, 2rem + 3.5vw, 5rem);

  --lh-tight: 1.05;
  --lh-snug:  1.2;
  --lh-normal:1.5;

  --ls-tight: -0.02em;
  --ls-wide:  0.08em;
  --ls-widest:0.16em;

  /* Spacing */
  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs:  0.75rem;
  --space-sm:  1rem;
  --space-md:  1.5rem;
  --space-lg:  2.5rem;
  --space-xl:  4rem;
  --space-2xl: 6rem;
  --space-3xl: 8.5rem;

  /* Layout */
  --container-max: 1240px;
  --container-pad: 1.25rem;

  /* Misc */
  --radius-sm: 2px;
  --radius-md: 4px;
  --border-w: 1px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 150ms;
  --dur-med:  320ms;
  --dur-slow: 480ms;

  --header-h: 64px;
}

@media (min-width: 768px){
  :root{
    --container-pad: 2rem;
    --header-h: 76px;
  }
}

/* ---------- Reset ---------- */
*, *::before, *::after{ box-sizing: border-box; }
html{ -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: hidden; }
body, h1, h2, h3, h4, p, figure, blockquote, dl, dd{ margin: 0; }
ul[class], ol[class]{ margin: 0; padding: 0; list-style: none; }
img, picture, svg{ display: block; max-width: 100%; }
input, button, textarea, select{ font: inherit; color: inherit; }
button{ background: none; border: none; cursor: pointer; }
a{ color: inherit; text-decoration: none; }
table{ border-collapse: collapse; }

body{
  font-family: var(--font-base);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Typography ---------- */
h1, h2, h3, h4{
  font-weight: 800;
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  text-wrap: balance;
}

.h1, h1{ font-size: var(--fs-3xl); }
.h2, h2{ font-size: var(--fs-2xl); }
.h3, h3{ font-size: var(--fs-xl); }
.h4, h4{ font-size: var(--fs-md); }

.eyebrow{
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: var(--ls-widest);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.lede{
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  line-height: var(--lh-normal);
  max-width: 40ch;
}

.text-muted{ color: var(--color-text-muted); }
.text-center{ text-align: center; }
.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;
}
.skip-link{
  position: absolute; left: 1rem; top: -60px;
  background: var(--color-black); color: var(--color-on-dark);
  padding: 0.75rem 1.25rem; z-index: 200; transition: top var(--dur-fast) var(--ease);
  font-size: var(--fs-sm); font-weight: 600;
}
.skip-link:focus{ top: 1rem; }

/* ---------- Focus states ---------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible{
  outline: 2px solid var(--color-black);
  outline-offset: 3px;
}

/* ---------- Layout helpers ---------- */
.container{
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section{
  padding-block: var(--space-2xl);
}
.section--tight{ padding-block: var(--space-xl); }
.section--alt{ background: var(--color-bg-alt); }
.section--dark{ background: var(--color-black); color: var(--color-on-dark); }
.section--dark .text-muted{ color: var(--color-on-dark-muted); }

.section-head{
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}
.section-head--center{ align-items: center; text-align: center; margin-inline: auto; }

.rule{
  border: none;
  border-top: var(--border-w) solid var(--color-border);
  margin: 0;
}
.section--dark .rule{ border-color: var(--color-border-dark); }

.grid{
  display: grid;
  gap: var(--space-lg);
}
@media (min-width: 768px){
  .grid--2{ grid-template-columns: repeat(2, 1fr); }
  .grid--3{ grid-template-columns: repeat(3, 1fr); }
  .grid--4{ grid-template-columns: repeat(4, 1fr); }
}

.visually-hide-mobile{ display: none; }
@media (min-width: 768px){ .visually-hide-mobile{ display: revert; } }
.hide-desktop{ display: revert; }
@media (min-width: 768px){ .hide-desktop{ display: none; } }

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  padding: 1rem 1.75rem;
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  border: var(--border-w) solid var(--color-black);
  border-radius: var(--radius-sm);
  transition: background-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
  white-space: nowrap;
  min-height: 48px;
}
.btn:active{ transform: scale(0.98); }

.btn--primary{
  background: var(--color-black);
  color: var(--color-on-dark);
}
.btn--primary:hover{ background: var(--color-charcoal); }

.btn--secondary{
  background: transparent;
  color: var(--color-black);
  border-color: var(--color-black);
}
.btn--secondary:hover{ background: var(--color-black); color: var(--color-on-dark); }

.btn--on-dark{
  background: var(--color-on-dark);
  color: var(--color-black);
  border-color: var(--color-on-dark);
}
.btn--on-dark:hover{ background: transparent; color: var(--color-on-dark); }

.btn--ghost-on-dark{
  background: transparent;
  color: var(--color-on-dark);
  border-color: var(--color-on-dark-muted);
}
.btn--ghost-on-dark:hover{ border-color: var(--color-on-dark); }

.btn--block{ width: 100%; }
.btn--sm{ padding: 0.7rem 1.25rem; min-height: 40px; font-size: var(--fs-xs); }

.btn[disabled]{ opacity: 0.45; cursor: not-allowed; }

.text-link{
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  border-bottom: var(--border-w) solid currentColor;
  padding-bottom: 2px;
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(245, 241, 233, 0.92);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: var(--border-w) solid transparent;
  transition: border-color var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color: var(--color-border);
}
.site-header__inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  width: 100%;
}

.wordmark{
  font-weight: 900;
  font-size: var(--fs-md);
  letter-spacing: var(--ls-tight);
  line-height: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.wordmark__eyebrow{
  display: block;
  font-size: 0.4em;
  font-weight: 700;
  letter-spacing: var(--ls-widest);
  color: var(--color-text-muted);
}
.wordmark__main{ display: block; }

.nav-primary{ display: none; }
@media (min-width: 1024px){
  .nav-primary{
    display: flex;
    align-items: center;
    gap: var(--space-lg);
  }
  .nav-primary a{
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: var(--ls-widest);
    text-transform: uppercase;
    padding-block: 0.4rem;
    border-bottom: var(--border-w) solid transparent;
    transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
  }
  .nav-primary a:hover{ border-color: var(--color-black); }
}

.header-actions{
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}
.icon-btn{
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  transition: background-color var(--dur-fast) var(--ease);
}
.icon-btn:hover{ background: var(--color-bg-alt); }
.icon-btn svg{ width: 21px; height: 21px; }

.cart-count{
  position: absolute;
  top: 3px;
  right: 3px;
  min-width: 16px;
  height: 16px;
  padding: 0 3px;
  border-radius: 999px;
  background: var(--color-black);
  color: var(--color-on-dark);
  font-size: 10px;
  font-weight: 700;
  line-height: 16px;
  text-align: center;
}
.cart-count[hidden]{ display: none; }

.menu-toggle{ display: inline-flex; }
@media (min-width: 1024px){ .menu-toggle{ display: none; } }
.menu-toggle .bars{
  width: 21px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.menu-toggle .bars span{
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
}
.menu-toggle[aria-expanded="true"] .bars span:nth-child(1){ transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .bars span:nth-child(2){ opacity: 0; }
.menu-toggle[aria-expanded="true"] .bars span:nth-child(3){ transform: translateY(-6px) rotate(-45deg); }

/* ---------- Mobile menu panel ---------- */
.mobile-menu{
  position: fixed;
  inset: 0;
  z-index: 150;
  visibility: hidden;
  overflow: hidden;
}
.mobile-menu__overlay{
  position: absolute;
  inset: 0;
  background: rgba(18, 17, 16, 0.4);
  opacity: 0;
  transition: opacity var(--dur-med) var(--ease);
}
.mobile-menu__panel{
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  width: min(86vw, 380px);
  background: var(--color-bg);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  transform: translateX(100%);
  transition: transform var(--dur-med) var(--ease);
}
.mobile-menu.is-open{ visibility: visible; }
.mobile-menu.is-open .mobile-menu__overlay{ opacity: 1; }
.mobile-menu.is-open .mobile-menu__panel{ transform: translateX(0); }

.mobile-menu__head{
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mobile-menu__links{
  display: flex;
  flex-direction: column;
}
.mobile-menu__links a{
  padding-block: var(--space-sm);
  border-bottom: var(--border-w) solid var(--color-border);
  font-size: var(--fs-lg);
  font-weight: 700;
  letter-spacing: var(--ls-tight);
}
.mobile-menu__foot{
  margin-top: auto;
  display: flex;
  gap: var(--space-md);
}
.mobile-menu__foot a{
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: var(--ls-widest);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}
.hero__inner{
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}
@media (min-width: 1024px){
  .hero{ padding-top: var(--space-2xl); padding-bottom: var(--space-2xl); }
  .hero__inner{
    flex-direction: row;
    align-items: center;
    gap: var(--space-2xl);
  }
}

.hero__copy{ display: flex; flex-direction: column; gap: var(--space-md); }
@media (min-width: 1024px){ .hero__copy{ flex: 1 1 50%; } }

.hero__title{
  font-size: var(--fs-3xl);
  font-weight: 900;
  letter-spacing: var(--ls-tight);
  line-height: 0.98;
}
.hero__title em{
  font-style: normal;
  color: var(--color-grey-light);
}
.hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}
.hero__meta{
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: var(--border-w) solid var(--color-border);
}
.hero__meta div{ font-size: var(--fs-xs); color: var(--color-text-muted); max-width: 20ch; }
.hero__meta strong{ display: block; color: var(--color-text); font-size: var(--fs-sm); }

.hero__visual{
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (min-width: 1024px){ .hero__visual{ flex: 1 1 50%; } }

/* ==========================================================================
   MEDIA FRAME — shared wrapper for real product photography
   Every editorial image on the page uses this base + a section modifier
   that sets aspect-ratio and object-position for that specific crop.
   ========================================================================== */
.media-frame{
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--color-bg-alt);
}
.media-frame img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero__media{ aspect-ratio: 4 / 5; }
.hero__media img{ object-position: 56% 48%; }
@media (min-width: 1024px){
  .hero__media{ aspect-ratio: 3 / 4; }
}

.problem__media{ aspect-ratio: 4 / 5; }
.problem__media img{ object-position: 55% 42%; }

.story__media{ aspect-ratio: 4 / 5; }
.story__media img{ object-position: 50% 45%; }

.product-shot{ aspect-ratio: 4 / 5; }
.product-shot img{ object-position: 56% 38%; }
@media (min-width: 1024px){
  .product-shot{ aspect-ratio: 3 / 4; }
}

.formula__media{ aspect-ratio: 16 / 9; margin-top: var(--space-lg); }
@media (min-width: 768px){ .formula__media{ aspect-ratio: 21 / 9; } }

.brush__media{ aspect-ratio: 1 / 1; }
.brush__media img{ object-position: center; }

.media-caption{
  margin-top: var(--space-sm);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
  text-align: center;
}

/* ==========================================================================
   BOTTLE ICON (tiny monochrome mark, used only for the cart line item —
   real photography replaces it everywhere else)
   ========================================================================== */
.bottle{
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: calc(150px * var(--bottle-scale));
}
.bottle__pump{
  position: relative;
  width: calc(48px * var(--bottle-scale));
  height: calc(30px * var(--bottle-scale));
  background: var(--color-black);
  border-radius: 6px 6px 2px 2px;
  z-index: 2;
}
.bottle__pump::after{
  content: "";
  position: absolute;
  top: 30%;
  right: -28%;
  width: 46%;
  height: 22%;
  background: var(--color-black);
  border-radius: 3px;
}
.bottle__neck{
  width: calc(22px * var(--bottle-scale));
  height: calc(20px * var(--bottle-scale));
  background: var(--color-charcoal);
}
.bottle__body{
  position: relative;
  width: calc(150px * var(--bottle-scale));
  height: calc(240px * var(--bottle-scale));
  background: var(--color-surface);
  border: var(--border-w) solid var(--color-border-dark);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.bottle__body::before{
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, transparent 40%, rgba(18,17,16,0.05) 48%, transparent 56%);
  pointer-events: none;
}
.bottle__label{
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: calc(4px * var(--bottle-scale));
  padding: calc(14px * var(--bottle-scale)) calc(10px * var(--bottle-scale));
  border-top: var(--border-w) solid var(--color-black);
  border-bottom: var(--border-w) solid var(--color-black);
  width: 78%;
}
.bottle__label-num{
  font-size: calc(1.6rem * var(--bottle-scale));
  font-weight: 900;
  line-height: 1;
}

/* ==========================================================================
   PROBLEM RECOGNITION
   ========================================================================== */
.problem__tags{
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}
.tag{
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.1rem;
  border: var(--border-w) solid var(--color-border-dark);
  border-radius: 999px;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
}
.problem__layout{
  display: grid;
  gap: var(--space-xl);
}
@media (min-width: 1024px){
  .problem__layout{ grid-template-columns: 1.1fr 0.9fr; align-items: start; gap: var(--space-2xl); }
}

/* ==========================================================================
   BRUSH / CLEAN ROUTINE OFFER
   ========================================================================== */
.brush__layout{
  display: grid;
  gap: var(--space-xl);
}
@media (min-width: 1024px){
  .brush__layout{ grid-template-columns: 1.05fr 0.95fr; align-items: center; gap: var(--space-2xl); }
}

.offer-panel{
  margin-top: var(--space-xl);
  padding-block: var(--space-lg);
  border-top: var(--border-w) solid var(--color-border-dark);
  border-bottom: var(--border-w) solid var(--color-border-dark);
}
.offer-panel__eyebrow{
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: var(--ls-widest);
  text-transform: uppercase;
  color: var(--color-accent);
}
.offer-panel__title{
  font-size: var(--fs-xl);
  font-weight: 900;
  letter-spacing: var(--ls-tight);
  margin-top: var(--space-2xs);
}
.offer-panel__copy{
  margin-top: var(--space-sm);
  color: var(--color-text-muted);
  max-width: 46ch;
}
.offer-panel__perk{
  margin-top: var(--space-sm);
  font-weight: 700;
  font-size: var(--fs-sm);
}

/* ==========================================================================
   BRAND STORY (image/text pair — mirrors problem__layout with sides swapped
   on desktop so photography alternates left/right down the page)
   ========================================================================== */
.story__layout{
  display: grid;
  gap: var(--space-xl);
}
@media (min-width: 1024px){
  .story__layout{ grid-template-columns: 0.9fr 1.1fr; align-items: center; gap: var(--space-2xl); }
  .story__layout > *:first-child{ order: 2; }
  .story__layout > *:last-child{ order: 1; }
}

/* ==========================================================================
   CULTURAL MOMENT (dark, social-native)
   ========================================================================== */
.moment{
  display: grid;
  gap: var(--space-xl);
  align-items: center;
}
@media (min-width: 1024px){
  .moment{ grid-template-columns: 1fr 0.85fr; gap: var(--space-2xl); }
}
.moment__video{
  position: relative;
  width: 100%;
  max-width: 320px;
  margin-inline: auto;
  aspect-ratio: 9 / 16;
  border: var(--border-w) solid var(--color-border-dark);
  border-radius: var(--radius-md);
  background: var(--color-charcoal);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.moment__video-inner{
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-on-dark-muted);
  text-align: center;
  padding: var(--space-md);
}
.moment__play{
  width: 52px;
  height: 52px;
  border-radius: 999px;
  border: var(--border-w) solid var(--color-on-dark-muted);
  display: flex;
  align-items: center;
  justify-content: center;
}
.moment__play svg{ width: 16px; height: 16px; fill: var(--color-on-dark); margin-left: 2px; }

/* ==========================================================================
   PRODUCT SECTION
   ========================================================================== */
.product-section__layout{
  display: grid;
  gap: var(--space-xl);
}
@media (min-width: 1024px){
  .product-section__layout{ grid-template-columns: 1fr 1fr; gap: var(--space-2xl); align-items: start; }
}

.product-card__kicker{
  font-size: var(--fs-3xl);
  font-weight: 900;
  line-height: 0.9;
  color: var(--color-grey-light);
}
.product-card__name{ margin-top: var(--space-2xs); }
.product-card__type{
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-top: var(--space-3xs);
}
.product-card__price{
  font-size: var(--fs-lg);
  font-weight: 800;
  margin-top: var(--space-md);
}
.product-card__price .was{
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  text-decoration: line-through;
  font-weight: 500;
  margin-left: var(--space-2xs);
}
.product-card__value-note{
  margin-top: var(--space-2xs);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.benefit-list{
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}
.benefit-list li{
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: var(--fs-sm);
}
.benefit-list svg{ width: 16px; height: 16px; flex-shrink: 0; margin-top: 4px; }

/* ==========================================================================
   QUANTITY TIERS — replaces the old one-time/subscribe selector.
   Purchase model is now quantity-based pricing only; no recurring option.
   ========================================================================== */
.tier-select{
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  margin-top: var(--space-md);
}
.tier-card{
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: var(--border-w) solid var(--color-border-dark);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease);
}
.tier-card:hover{ background: var(--color-bg-alt); }
.tier-card input{ position: absolute; opacity: 0; pointer-events: none; }
.tier-card__radio{
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: var(--border-w) solid var(--color-black);
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.tier-card__radio::after{
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--color-black);
  transform: scale(0);
  transition: transform var(--dur-fast) var(--ease);
}
.tier-card input:checked ~ .tier-card__radio::after{ transform: scale(1); }
.tier-card.is-selected{ border-color: var(--color-black); background: var(--color-bg-alt); }
.tier-card--featured{ border-color: var(--color-black); }
.tier-card__main{
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}
.tier-card__label{
  font-size: var(--fs-sm);
  font-weight: 700;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2xs);
}
.tier-card__badge{
  font-size: 9px;
  font-weight: 700;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  background: var(--color-black);
  color: var(--color-on-dark);
  padding: 0.2rem 0.45rem;
  border-radius: 999px;
}
.tier-card__unit{
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}
.tier-card__perks{
  display: flex;
  flex-direction: column;
  margin-top: 2px;
}
.tier-card__perk{
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--color-accent);
}
/* Hidden by default — desktop keeps today's plain text rows unchanged.
   Shown only in the mobile refinement below. */
.tier-card__perk-icon{
  display: none;
}
.tier-card__price{
  font-size: var(--fs-sm);
  font-weight: 700;
  white-space: nowrap;
}

/* ==========================================================================
   MOBILE REFINEMENT — quantity tier cards (<=600px only)
   Fixes the 2- and 3-bottle perk rows ("Free Scalp Cleansing Brush" /
   "Free Shipping") sitting flush with no gap and no visual anchor, which
   on narrow screens can read as one run-on phrase. Desktop is untouched —
   everything here lives inside this single media query.
   ========================================================================== */
@media (max-width: 600px){
  .tier-select{
    gap: var(--space-3xs);
  }
  .tier-card{
    padding-block: 0.8rem;
  }
  .tier-card__main{
    gap: 4px;
  }
  .tier-card__badge{
    font-size: 8px;
    padding: 0.18rem 0.4rem;
  }
  .tier-card__perks{
    gap: 4px;
    margin-top: 3px;
  }
  .tier-card__perk{
    display: flex;
    align-items: flex-start;
    gap: 0.35rem;
    line-height: 1.3;
  }
  .tier-card__perk-icon{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 13px;
    height: 13px;
    margin-top: 1px;
    border-radius: 999px;
    font-size: 9px;
    line-height: 1;
    color: var(--color-on-dark);
    background: var(--color-accent);
  }
}

.tier-selected-total{
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: var(--border-w) solid var(--color-border);
}
.tier-selected-total__label{
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.tier-selected-total__price{
  font-size: var(--fs-xl);
  font-weight: 900;
}

.tier-selected-perks{
  margin-top: var(--space-2xs);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--color-accent);
  text-align: right;
}

.add-to-cart{ margin-top: var(--space-md); }

.qty-stepper{
  display: inline-flex;
  align-items: center;
  border: var(--border-w) solid var(--color-black);
  border-radius: var(--radius-sm);
  height: 48px;
}
.qty-stepper button{
  width: 42px;
  height: 100%;
  font-size: var(--fs-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.qty-stepper input{
  width: 32px;
  text-align: center;
  border: none;
  background: transparent;
  font-weight: 700;
  height: 100%;
  -moz-appearance: textfield;
}
.qty-stepper input::-webkit-outer-spin-button,
.qty-stepper input::-webkit-inner-spin-button{ -webkit-appearance: none; margin: 0; }
.qty-stepper--sm{ height: 36px; }
.qty-stepper--sm button{ width: 34px; font-size: var(--fs-sm); }
.qty-stepper--sm input{ width: 24px; font-size: var(--fs-xs); }

.trust-row{
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: var(--border-w) solid var(--color-border);
}
.trust-item{
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}
.trust-item svg{ width: 15px; height: 15px; flex-shrink: 0; }

/* Sticky mobile add-to-cart bar (used on product page; wired for reuse) */
.sticky-atc{
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 90;
  background: var(--color-bg);
  border-top: var(--border-w) solid var(--color-border-dark);
  padding: 0.75rem var(--container-pad);
  padding-bottom: calc(0.75rem + env(safe-area-inset-bottom));
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  transform: translateY(100%);
  transition: transform var(--dur-med) var(--ease);
}
.sticky-atc.is-visible{ transform: translateY(0); }
.sticky-atc__info{ flex: 1; min-width: 0; }
.sticky-atc__name{ font-size: var(--fs-xs); font-weight: 700; }
.sticky-atc__price{ font-size: var(--fs-xs); color: var(--color-text-muted); }

/* ==========================================================================
   ROUTINE (numbered system)
   ========================================================================== */
.routine-list{
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: var(--space-lg);
}
.routine-item{
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-md);
  padding-block: var(--space-lg);
  border-top: var(--border-w) solid var(--color-border);
}
.routine-item:last-child{ border-bottom: var(--border-w) solid var(--color-border); }
.routine-item__num{
  font-size: var(--fs-2xl);
  font-weight: 900;
  color: var(--color-grey-light);
  line-height: 1;
}
.routine-item__body h3{ margin-bottom: 0.2rem; }
.routine-item__status{
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  white-space: nowrap;
  text-align: right;
}
.routine-item__status--active{ color: var(--color-black); }
.routine-item__status--soon{
  color: var(--color-text-muted);
  border: var(--border-w) solid var(--color-border-dark);
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
}
@media (max-width: 560px){
  .routine-item{ grid-template-columns: auto 1fr; }
  .routine-item__status{ grid-column: 1 / -1; text-align: left; margin-top: var(--space-2xs); }
}

/* ==========================================================================
   HOW TO USE (steps)
   ========================================================================== */
.steps{
  counter-reset: step;
  margin-top: var(--space-xl);
}
.steps__item{
  display: flex;
  gap: var(--space-md);
  padding-block: var(--space-lg);
  border-top: var(--border-w) solid var(--color-border);
}
.steps__item:last-of-type{ border-bottom: var(--border-w) solid var(--color-border); }
.steps__num{
  font-size: var(--fs-lg);
  font-weight: 900;
  color: var(--color-grey-light);
  flex-shrink: 0;
  width: 2.5ch;
}

/* ==========================================================================
   BENEFITS
   ========================================================================== */
.benefit-block{
  padding-top: var(--space-md);
  border-top: var(--border-w) solid var(--color-border-dark);
}
.benefit-block h3{ margin-bottom: var(--space-2xs); }

/* ==========================================================================
   FORMULA / INGREDIENTS
   Highlighted ingredients reuse .grid.grid--2 + .benefit-block (see BENEFITS)
   ========================================================================== */

.accordion{ border-top: var(--border-w) solid var(--color-border-dark); }
.accordion + .accordion{ border-top: none; }
.accordion__header{
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  text-align: left;
  font-weight: 700;
  font-size: var(--fs-sm);
}
.accordion__icon{
  position: relative;
  width: 16px; height: 16px;
  flex-shrink: 0;
}
.accordion__icon::before,
.accordion__icon::after{
  content: "";
  position: absolute;
  background: currentColor;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}
.accordion__icon::before{ width: 100%; height: 1.5px; }
.accordion__icon::after{ width: 1.5px; height: 100%; transition: transform var(--dur-fast) var(--ease); }
.accordion__header[aria-expanded="true"] .accordion__icon::after{ transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }

.accordion__panel{
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--dur-med) var(--ease);
}
.accordion__panel-inner{
  padding-bottom: var(--space-md);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  max-width: 62ch;
}
.accordion__panel-inner p + p{ margin-top: var(--space-xs); }

.ingredient-full{
  margin-top: var(--space-lg);
  border-top: var(--border-w) solid var(--color-border-dark);
}

/* ==========================================================================
   VALUE — cost-per-wash USP. Edit CONFIG.PRODUCT.washes in main.js if the
   final production pump dispenses a different amount than ~1ml.
   ========================================================================== */
.value-section__title,
.value-section__lede{
  margin-top: var(--space-sm);
}
.value-stats{
  margin-top: var(--space-2xl);
  text-align: center;
}
.value-stat__top,
.value-stat__bottom{
  font-size: var(--fs-lg);
  font-weight: 900;
  letter-spacing: var(--ls-tight);
}
.value-stat__eq{
  font-size: var(--fs-md);
  color: var(--color-on-dark-muted);
  margin-block: var(--space-2xs);
}
.value-footnote{
  margin-top: var(--space-xl);
  font-size: var(--fs-xs);
  text-align: center;
}

/* Mobile-only restatement of cards 2 & 3 (see markup comment above) —
   hidden on tablet/desktop by default so the existing calculation rows
   there are completely unaffected. */
.value-stat__mobile-only{ display: none !important; }

/* ==========================================================================
   MOBILE REFINEMENT — Cost Per Wash section (<=600px only)
   The three stacked calculation rows were taking up too much vertical
   space on narrow screens. Below 600px this compresses them into a
   2-up + 1 full-width card grid instead; desktop (>600px) keeps the
   original three-row layout and copy completely untouched — everything
   here lives inside this single media query.
   ========================================================================== */
@media (max-width: 600px){
  .value-section{
    padding-block: var(--space-lg);
  }
  .value-section__title,
  .value-section__lede{
    margin-top: var(--space-2xs);
  }
  .value-stats{
    margin-top: var(--space-md);
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2xs);
  }
  /* Plain block flow (not flex) on purpose: it lets the "≈" and the text
     right after it merge onto one visual line as normal inline siblings —
     flex items would each get blockified onto their own row regardless
     of their own display value, which defeats that. */
  .value-stat{
    padding: var(--space-sm);
    border: var(--border-w) solid var(--color-border-dark);
    border-radius: var(--radius-md);
  }
  .value-stat--hero{
    grid-column: 1 / -1;
    padding-block: var(--space-sm);
    border-color: var(--color-on-dark-muted);
  }
  .value-stat__top{
    margin-bottom: 2px;
    font-size: var(--fs-md);
  }
  .value-stat__top--hero{
    font-size: var(--fs-2xl);
  }
  .value-stat__eq{
    display: inline;
    margin: 0 0.3em 0 0;
    font-size: var(--fs-sm);
  }
  /* Only the text that directly follows the "≈" symbol (card 1) joins it
     on one line; cards 2 & 3 use .value-stat__sub instead, which keeps
     its own line below the headline number. */
  .value-stat__eq + .value-stat__bottom{
    display: inline;
    font-size: var(--fs-sm);
  }
  .value-stat__sub{
    margin-top: 2px;
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: var(--ls-wide);
    text-transform: uppercase;
    color: var(--color-on-dark-muted);
  }
  .value-stat__mobile-only{ display: block !important; }
  .value-stat__desktop-only{ display: none !important; }
  .value-footnote{
    margin-top: var(--space-sm);
    max-width: 32ch;
    margin-inline: auto;
    font-size: 11px;
  }
}

/* ==========================================================================
   SOCIAL PROOF
   ========================================================================== */
.ugc-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}
@media (min-width: 768px){ .ugc-grid{ grid-template-columns: repeat(4, 1fr); } }
.ugc-card{
  aspect-ratio: 9 / 14;
  border: var(--border-w) dashed var(--color-border-dark);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm);
}
.ugc-card__inner{
  text-align: center;
  color: var(--color-grey-light);
}
.ugc-card__inner svg{ width: 22px; height: 22px; margin: 0 auto var(--space-2xs); }
.ugc-card__inner span{
  display: block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
}

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq-list{ max-width: 760px; }

/* ==========================================================================
   EMAIL CAPTURE
   ========================================================================== */
.email-section{
  text-align: center;
}
.email-form{
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: 420px;
  margin: var(--space-lg) auto 0;
}
@media (min-width: 560px){
  .email-form{ flex-direction: row; }
}
.email-form input[type="email"]{
  flex: 1;
  padding: 1rem 1.1rem;
  border: var(--border-w) solid var(--color-on-dark-muted);
  background: transparent;
  color: var(--color-on-dark);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
}
.email-form input[type="email"]::placeholder{ color: var(--color-on-dark-muted); }
.email-form input[type="email"]:focus-visible{ outline-color: var(--color-on-dark); }
.email-note{
  margin-top: var(--space-sm);
  font-size: var(--fs-xs);
  color: var(--color-on-dark-muted);
}
.form-status{
  margin-top: var(--space-sm);
  font-size: var(--fs-sm);
  font-weight: 600;
  min-height: 1.2em;
}
.form-status[data-state="success"]{ color: #8FBF8F; }
.section--dark .form-status[data-state="success"]{ color: #9FCB9F; }

/* ==========================================================================
   FINAL CTA
   ========================================================================== */
.final-cta{
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}
.final-cta__title{ font-size: var(--fs-3xl); }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer{
  background: var(--color-black);
  color: var(--color-on-dark);
  padding-block: var(--space-2xl) var(--space-lg);
}
.footer-grid{
  display: grid;
  gap: var(--space-xl);
}
@media (min-width: 768px){
  .footer-grid{ grid-template-columns: 1.4fr repeat(3, 1fr); }
}
.footer-brand p{
  color: var(--color-on-dark-muted);
  max-width: 34ch;
  margin-top: var(--space-sm);
  font-size: var(--fs-sm);
}
.footer-col h4{
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-widest);
  text-transform: uppercase;
  color: var(--color-on-dark-muted);
  margin-bottom: var(--space-sm);
}
.footer-col ul{ display: flex; flex-direction: column; gap: var(--space-2xs); }
.footer-col a{ font-size: var(--fs-sm); color: var(--color-on-dark); }
.footer-col a:hover{ color: var(--color-on-dark-muted); }

.footer-bottom{
  margin-top: var(--space-2xl);
  padding-top: var(--space-md);
  border-top: var(--border-w) solid var(--color-border-dark);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-xs);
  color: var(--color-on-dark-muted);
}
.footer-social{ display: flex; gap: var(--space-md); }

/* ==========================================================================
   CART DRAWER
   ========================================================================== */
.cart-drawer{
  position: fixed;
  inset: 0;
  z-index: 200;
  visibility: hidden;
  overflow: hidden;
}
.cart-drawer__overlay{
  position: absolute;
  inset: 0;
  background: rgba(18, 17, 16, 0.4);
  opacity: 0;
  transition: opacity var(--dur-med) var(--ease);
}
.cart-drawer__panel{
  position: absolute;
  top: 0; right: 0;
  height: 100%;
  width: min(92vw, 420px);
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--dur-med) var(--ease);
}
.cart-drawer.is-open{ visibility: visible; }
.cart-drawer.is-open .cart-drawer__overlay{ opacity: 1; }
.cart-drawer.is-open .cart-drawer__panel{ transform: translateX(0); }

.cart-drawer__head{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  border-bottom: var(--border-w) solid var(--color-border);
}
.cart-drawer__body{
  flex: 1;
  overflow-y: auto;
  padding: var(--space-md);
}
.cart-empty{
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
  color: var(--color-text-muted);
}

.cart-line{
  display: grid;
  grid-template-columns: 68px 1fr auto;
  gap: var(--space-sm);
  padding-block: var(--space-md);
  border-bottom: var(--border-w) solid var(--color-border);
}
.cart-line__visual{
  --bottle-scale: 0.34;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cart-line__name{ font-weight: 700; font-size: var(--fs-sm); }
.cart-line__variant{ font-size: var(--fs-xs); color: var(--color-text-muted); margin-top: 2px; }
.cart-line__controls{
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-2xs);
  gap: var(--space-sm);
}
.cart-line__remove{
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  text-decoration: underline;
}
.cart-line__price{
  font-weight: 700;
  font-size: var(--fs-sm);
  text-align: right;
  white-space: nowrap;
}

.cart-drawer__foot{
  padding: var(--space-md);
  border-top: var(--border-w) solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.cart-shipping-note{
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  text-align: center;
}
.cart-subtotal{
  display: flex;
  justify-content: space-between;
  font-size: var(--fs-md);
  font-weight: 700;
}
.cart-checkout-note{
  font-size: 11px;
  color: var(--color-text-muted);
  text-align: center;
}

/* ==========================================================================
   EMAIL POPUP
   ========================================================================== */
.email-popup{
  position: fixed;
  inset: 0;
  z-index: 250;
  visibility: hidden;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
@media (min-width: 768px){ .email-popup{ align-items: center; } }
.email-popup__overlay{
  position: absolute;
  inset: 0;
  background: rgba(18, 17, 16, 0.5);
  opacity: 0;
  transition: opacity var(--dur-med) var(--ease);
}
.email-popup__panel{
  position: relative;
  width: 100%;
  max-width: 460px;
  background: var(--color-black);
  color: var(--color-on-dark);
  padding: var(--space-xl) var(--space-md) var(--space-md);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  transform: translateY(100%);
  transition: transform var(--dur-med) var(--ease);
  text-align: center;
}
@media (min-width: 768px){
  .email-popup__panel{ border-radius: var(--radius-md); transform: translateY(24px) scale(0.98); opacity: 0; transition: transform var(--dur-med) var(--ease), opacity var(--dur-med) var(--ease); }
}
.email-popup.is-open{ visibility: visible; }
.email-popup.is-open .email-popup__overlay{ opacity: 1; }
.email-popup.is-open .email-popup__panel{ transform: translateY(0) scale(1); opacity: 1; }

.email-popup__close{
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-on-dark-muted);
}
.email-popup__close:hover{ color: var(--color-on-dark); }

/* ==========================================================================
   TOAST (checkout placeholder notice)
   ========================================================================== */
.toast{
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  transform: translate(-50%, 12px);
  z-index: 300;
  background: var(--color-black);
  color: var(--color-on-dark);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: transform var(--dur-med) var(--ease), opacity var(--dur-med) var(--ease);
  max-width: calc(100% - 2.5rem);
  text-align: center;
}
.toast.is-visible{
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ==========================================================================
   SCROLL REVEAL
   ========================================================================== */
[data-reveal]{
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 640ms var(--ease), transform 640ms var(--ease);
}
[data-reveal].is-visible{
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce){
  [data-reveal]{ opacity: 1; transform: none; transition: none; }
}