/**
 * @file        app.css
 * @description Mobile-first base styles, layout, catalogue, star control, community, lists, profile, toasts, interaction effects and the whisper spirit
 *
 * @author      Thomas Dobler - SYNTHETIXMIND LTD
 * @email       tom@synthetixmind.com
 * @company     SYNTHETIXMIND LTD, Paphos, Cyprus
 * @url         https://synthetixmind.com
 *
 * @uid         8b61632a-c49f-4256-a493-3b3330543f7c
 * @version     0.8.0.16
 * @created     2026-10-12
 * @updated     2026-10-14
 *
 * @copyright   (c) 2026 by SYNTHETIXMIND LTD
 * @license     Proprietary — All rights reserved
 */

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

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-family-base);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-body);
  /* Room for the fixed bottom navigation on mobile. */
  padding-bottom: calc(var(--size-touch-target) + var(--space-4));
}

h1 {
  font-size: var(--font-size-h1-mobile);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin: 0 0 var(--space-4);
}

a { color: var(--color-accent); text-decoration: none; }
a:hover, a:focus-visible { color: var(--color-accent-hover); text-decoration: underline; }
/* Links inside running text are underlined, so they never rely on colour alone (WCAG 1.4.1, DG §9). */
p a:not(.button) { text-decoration: underline; text-underline-offset: 2px; }

:focus-visible {
  outline: var(--focus-ring-width) solid var(--color-accent);
  outline-offset: var(--focus-ring-offset);
}

.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: var(--space-4); top: var(--space-4); z-index: 10; }

/* Header */
.site-header { border-bottom: var(--border-width) solid var(--color-border); background: var(--color-surface); }
.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  max-width: var(--size-content-max);
  margin: 0 auto;
  padding: var(--space-2) var(--space-4);
  min-height: calc(var(--size-touch-target) + var(--space-4));
}
.brand { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--color-text); font-weight: var(--font-weight-bold); margin-right: auto; }
.brand:hover, .brand:focus-visible { color: var(--color-text); }
/* 40px logo: --space-6 + --space-2; the image is the owner's spirit logo (DG §8). */
.brand__logo { width: calc(var(--space-6) + var(--space-2)); height: calc(var(--space-6) + var(--space-2)); border-radius: var(--radius-full); }
.top-nav { display: none; }

/* User menu (details/summary works without JavaScript) */
.user-menu { position: relative; }
.user-menu__toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: var(--size-touch-target);
  padding: 0 var(--space-3);
  border-radius: var(--radius-full);
  background: var(--color-surface-alt);
  cursor: pointer;
  list-style: none;
}
.user-menu__toggle::-webkit-details-marker { display: none; }
.user-menu__name { max-width: 12ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-menu__panel {
  position: absolute;
  right: 0;
  top: calc(100% + var(--space-2));
  z-index: 5;
  min-width: 200px;
  display: flex;
  flex-direction: column;
  padding: var(--space-2);
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
}
.user-menu__panel a, .link-button {
  display: flex;
  align-items: center;
  min-height: var(--size-touch-target);
  padding: 0 var(--space-3);
  border-radius: var(--radius-sm);
}
.link-button {
  width: 100%;
  border: 0;
  background: none;
  color: var(--color-accent);
  font: inherit;
  cursor: pointer;
  text-align: left;
}
.user-menu__panel a:hover, .link-button:hover { background: var(--color-surface-alt); }

/* Page */
.page { flex: 1; width: 100%; max-width: var(--size-content-max); margin: 0 auto; padding: var(--space-5) var(--space-4); }
.hero { padding: var(--space-6) 0; }
.lead { color: var(--color-text-muted); margin: 0 0 var(--space-5); }
.panel {
  max-width: 560px;
  margin: 0 auto;
  padding: var(--space-5);
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
}
.panel--centered { text-align: center; }
.status-note { color: var(--color-warning); font-size: var(--font-size-meta); font-weight: var(--font-weight-medium); }

/* Buttons (DG §5) */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--size-touch-target);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  border: var(--border-width) solid transparent;
  font: inherit;
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--easing-standard);
}
.button:hover, .button:focus-visible { text-decoration: none; }
.button--primary { background: var(--color-primary); color: var(--color-on-primary); }
.button--primary:hover { background: var(--color-primary-hover); color: var(--color-on-primary); }
.button--primary:active { background: var(--color-primary-active); }
.button--secondary { background: transparent; border-color: var(--color-accent); color: var(--color-accent); }
.button--secondary:hover { background: var(--color-surface-alt); color: var(--color-accent-hover); }
.button--secondary:active { background: var(--color-surface); }

/* Forms */
.form { display: flex; flex-direction: column; gap: var(--space-2); text-align: left; }
.form__label { font-weight: var(--font-weight-medium); }
.form__hint { margin: 0; color: var(--color-text-muted); font-size: var(--font-size-meta); line-height: var(--line-height-meta); }
.form__error { margin: 0; color: var(--color-error); }
.form .button { margin-top: var(--space-3); align-self: flex-start; }
.input {
  min-height: var(--size-touch-target);
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface-alt);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font: inherit;
  font-size: var(--font-size-body);
}
.input:hover, .input:focus { border-color: var(--color-accent); }
.input[aria-invalid="true"] { border-color: var(--color-error); }

.button--danger { background: var(--color-error); color: var(--color-on-primary); }
.button--danger:hover, .button--danger:focus-visible { background: var(--color-error); color: var(--color-on-primary); filter: brightness(1.1); }
.form__optional { color: var(--color-text-muted); font-weight: var(--font-weight-regular); }
.form__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.input--textarea { min-height: calc(var(--size-touch-target) * 3); resize: vertical; font: inherit; }
/* Inline SVG icons follow the text size and colour. */
.icon { display: inline-block; width: 1em; height: 1em; vertical-align: -0.125em; }
.button .icon { margin-right: var(--space-1); }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Category chip (DG §5), also used for the admin section navigation. */
.chip {
  display: inline-flex;
  align-items: center;
  min-height: var(--size-touch-target);
  padding: 0 var(--space-4);
  background: var(--color-surface-alt);
  color: var(--color-text-muted);
  border: var(--border-width) solid transparent;
  border-radius: var(--radius-full);
}
.chip:hover, .chip:focus-visible { border-color: var(--color-accent); color: var(--color-text-muted); text-decoration: none; }
.chip--selected, .chip--selected:hover { background: var(--color-accent); color: var(--color-on-primary); }
.chip--static { min-height: 0; padding: 0 var(--space-2); font-size: var(--font-size-meta); }

/* Admin screens (Sprint 2) */
.admin h2 { font-size: var(--font-size-h2-mobile); margin: var(--space-5) 0 var(--space-3); }
/* Admin on/off switch: a checkbox with role="switch"; the track and thumb are decorative. */
.setting-switch { margin: 0 0 var(--space-5); padding: var(--space-4); background: var(--color-surface); border: var(--border-width) solid var(--color-border); border-radius: var(--radius-md); }
.setting-switch .form__hint { margin-top: var(--space-2); }
.switch { display: inline-flex; align-items: center; gap: var(--space-3); min-height: var(--size-touch-target); cursor: pointer; font-weight: var(--font-weight-semibold); }
.switch__input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch__track { position: relative; flex: none; width: calc(var(--space-6) + var(--space-5)); height: var(--space-5); border-radius: var(--radius-full); background: var(--color-surface-alt); border: var(--border-width) solid var(--color-border); transition: background-color var(--duration-base) var(--easing-standard), box-shadow var(--duration-base) var(--easing-standard); }
.switch__thumb { position: absolute; top: calc(var(--space-1) / 2); left: calc(var(--space-1) / 2); width: calc(var(--space-5) - var(--space-1) - 2 * var(--border-width)); height: calc(var(--space-5) - var(--space-1) - 2 * var(--border-width)); border-radius: var(--radius-full); background: var(--color-text-muted); transition: transform var(--duration-base) var(--easing-bounce), background-color var(--duration-base) var(--easing-standard); }
.switch__input:checked + .switch__track { background: var(--color-accent); box-shadow: 0 0 var(--space-3) var(--color-glow); }
.switch__input:checked + .switch__track .switch__thumb { background: var(--color-on-primary); transform: translateX(var(--space-6)); }
.switch__input:focus-visible + .switch__track { outline: var(--focus-ring-width) solid var(--color-accent); outline-offset: var(--focus-ring-offset); }
.admin-nav { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-4); }
.admin-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-3); }
.admin-list__item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
}
.admin-list__main { display: flex; flex-direction: column; gap: var(--space-1); min-width: 0; overflow-wrap: anywhere; }
.admin-list__meta { color: var(--color-text-muted); font-size: var(--font-size-meta); }
.admin-list__xp { display: inline-flex; align-items: center; gap: var(--space-2); font-size: var(--font-size-meta); font-weight: var(--font-weight-semibold); }
.user-menu__toggle .avatar { margin-right: var(--space-1); }
.admin-list__actions { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.admin-list__actions form { margin: 0; }
.admin-empty, .count { color: var(--color-text-muted); }
.empty-state { padding: var(--space-5); text-align: center; background: var(--color-surface); border-radius: var(--radius-md); }
.skip-list { padding-left: var(--space-5); color: var(--color-text-muted); }
.notice { padding: var(--space-3) var(--space-4); border-radius: var(--radius-sm); background: var(--color-surface-alt); }
.notice--error { color: var(--color-error); }

/* Toast (DG §5): flash message after a redirect; app.js hides it after --duration-toast. */
.toast {
  margin: 0 0 var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-alt);
  border-radius: var(--radius-sm);
}
.toast--success span { color: var(--color-success); }
.toast--error span { color: var(--color-error); }

/* Dialog (DG §5) */
.dialog {
  width: min(480px, calc(100vw - 2 * var(--space-4)));
  padding: var(--space-5);
  background: var(--color-surface);
  color: var(--color-text);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-lg);
}
.dialog::backdrop { background: var(--color-overlay); }
.dialog__title { margin-top: 0; font-size: var(--font-size-h2-mobile); }
.dialog__actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: var(--space-3); }

/* Catalogue grid, filter and product card (Sprint 3, DG §5, DG §10) */
.catalogue-intro h1 { margin-bottom: var(--space-2); }
.catalogue-filter { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-3); }
.catalogue-filter__search { flex: 1 1 100%; }
.catalogue-filter__search .input { width: 100%; }
.catalogue-filter__sort { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.catalogue-filter__sort .input { width: auto; }
.chip-row { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-4); }
.filter-status { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-3); color: var(--color-text-muted); }
.product-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}
.product-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  color: var(--color-text);
}
.product-card:hover, .product-card:focus-visible { border-color: var(--color-accent); color: var(--color-text); text-decoration: none; }
.product-card:active { border-color: var(--color-primary); }
.product-card__body { display: flex; flex-direction: column; gap: var(--space-2); padding: var(--space-3); flex: 1; }
.product-card__name { font-weight: var(--font-weight-semibold); line-height: var(--line-height-snug); overflow-wrap: anywhere; }
.product-card__meta { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); }
.product-card__price, .product-detail__price { font-weight: var(--font-weight-semibold); }
.product-card__rating { margin-top: auto; display: flex; flex-direction: column; gap: var(--space-1); font-size: var(--font-size-meta); }
/* Big five-star row across the full card width (group average, nearest half star). */
.product-card__body { container-type: inline-size; }
.card-stars {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  justify-items: center;
  font-size: 2rem;
  font-size: 21cqi;
  line-height: 1;
  color: var(--color-primary);
  text-shadow: 0 0 var(--space-3) var(--color-glow);
}
.card-stars__star--empty { color: var(--color-star-empty); text-shadow: none; }
.card-stars__star--half {
  background: linear-gradient(90deg, var(--color-primary) 50%, var(--color-star-empty) 50%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: none;
}
.product-card__rating--none { color: var(--color-text-muted); }
/* Comment and Mix Suggestion markers on grid cards. */
/* Always rendered (an invisible placeholder when empty) and never wrapped, so its height is the same on
   every card and the star rows above it line up across a grid row. */
.product-card__activity { display: flex; flex-wrap: nowrap; gap: var(--space-2); font-size: var(--font-size-body); }
.product-card__activity--empty { visibility: hidden; }
.activity-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-full);
  background: var(--color-surface-alt);
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
  box-shadow: 0 0 var(--space-3) var(--color-glow);
}
.activity-badge__visual { display: inline-flex; align-items: center; gap: var(--space-1); }
.activity-badge__icon { font-size: 1.75em; line-height: 1; }
.star { color: var(--color-primary); }
.star--empty { color: var(--color-star-empty); }

/* Product image: square box reserved up front; hotlinked images are letterboxed, not cropped. */
.product-image {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: var(--color-surface-alt);
}
.product-image--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--font-size-meta);
  text-align: center;
  overflow-wrap: anywhere;
}

/* Product detail page (Story 2.3); two columns from --breakpoint-md. */
.back-link { margin: 0 0 var(--space-3); }
.back-link a { display: inline-flex; align-items: center; min-height: var(--size-touch-target); }
.product-detail { display: grid; gap: var(--space-5); }
.product-detail__media { border-radius: var(--radius-md); overflow: hidden; max-width: 480px; }
.product-detail__info { display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-3); min-width: 0; }
.product-detail__info h1 { margin: 0; overflow-wrap: anywhere; }
.product-detail__meta { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); margin: 0; }
.product-detail__description { margin: 0; white-space: pre-line; overflow-wrap: anywhere; color: var(--color-text-muted); }
.rating-summary p { margin: 0; font-size: var(--font-size-h2-mobile); }
.rating-summary .count { font-size: var(--font-size-meta); color: var(--color-text-muted); }
.product-section h2 { font-size: var(--font-size-h2-mobile); margin: var(--space-6) 0 var(--space-3); }
.empty-state__icon { margin: 0 0 var(--space-2); font-size: var(--font-size-h1); color: var(--color-primary); }

/* Star rating control (DG §5): stars up to the pointer highlight; the rest stay empty. */
.stars-form { margin: 0; }
.stars-form__label { margin: 0 0 var(--space-1); font-weight: var(--font-weight-medium); }
.stars-form__status { margin: var(--space-1) 0 0; color: var(--color-text-muted); font-size: var(--font-size-meta); min-height: 1lh; }
.stars { display: flex; }
.stars__button {
  min-width: var(--size-touch-target);
  min-height: var(--size-touch-target);
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--color-star-empty);
  font-size: var(--font-size-h1);
  line-height: 1;
  cursor: pointer;
}
.stars__button.is-filled { color: var(--color-primary); }
.stars:hover .stars__button { color: var(--color-primary-hover); }
.stars:hover .stars__button:hover ~ .stars__button { color: var(--color-star-empty); }
.stars-form[aria-busy="true"] .stars__button { cursor: progress; }
.stars__button.is-sparkling { animation: star-sparkle var(--duration-slow) var(--easing-bounce); }
.stars-remove { margin: 0; }

@keyframes star-sparkle {
  0% { transform: scale(1); text-shadow: none; }
  50% { transform: scale(1.3); text-shadow: 0 0 var(--space-3) var(--color-primary); }
  100% { transform: scale(1); text-shadow: none; }
}

/* Privacy notice and other text pages */
.prose { max-width: 70ch; }
.prose h2 { font-size: var(--font-size-h2-mobile); margin: var(--space-5) 0 var(--space-2); }
.prose li { margin-bottom: var(--space-1); }

/* Footer and bottom navigation */
.site-footer { padding: var(--space-5) var(--space-4); color: var(--color-text-muted); font-size: var(--font-size-meta); text-align: center; }
.bottom-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  justify-content: space-around;
  background: var(--color-surface);
  border-top: var(--border-width) solid var(--color-border);
}
.bottom-nav a {
  display: flex;
  flex: 1;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: calc(var(--size-touch-target) + var(--space-2));
  color: var(--color-text-muted);
}

/* Sleepy whisper spirit: CSS fallback mascot (DG §8) until Epic 8 ships the three.js version. */
.spirit {
  position: relative;
  width: var(--size-mascot);
  height: var(--size-mascot);
  margin: 0 auto var(--space-5);
  border-radius: 50% 50% 40% 40%;
  background: radial-gradient(circle at 50% 40%, var(--color-text), var(--color-accent-hover) 70%);
  box-shadow: 0 0 var(--space-6) var(--color-glow);
}
.spirit__star {
  position: absolute;
  top: 14%;
  left: 50%;
  width: 14px;
  height: 14px;
  transform: translateX(-50%) rotate(45deg);
  background: var(--color-primary);
}
.spirit__eye {
  position: absolute;
  top: 48%;
  width: 16px;
  height: 3px;
  border-radius: var(--radius-full);
  background: var(--color-bg);
}
.spirit__eye--left { left: 28%; }
.spirit__eye--right { right: 28%; }
.spirit__z {
  position: absolute;
  top: -8%;
  right: -12%;
  color: var(--color-accent-hover);
  font-weight: var(--font-weight-bold);
}
.spirit--sleepy, .loading-page .spirit { animation: spirit-float 3s var(--easing-standard) infinite alternate; }

/* Loading page (templates/loading.php): centred card with a native progress bar. */
.loading-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  min-height: 100dvh;
  max-width: 480px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-4);
  text-align: center;
}
.loading-page__title { margin-bottom: var(--space-2); }
.loading-page__text { color: var(--color-text-muted); margin-bottom: var(--space-5); }
.loading-page__bar {
  width: 100%;
  height: 12px;
  appearance: none;
  border: 0;
  border-radius: var(--radius-full);
  background: var(--color-surface-alt);
  overflow: hidden;
}
.loading-page__bar::-webkit-progress-bar { background: var(--color-surface-alt); border-radius: var(--radius-full); }
.loading-page__bar::-webkit-progress-value { background: var(--color-primary); border-radius: var(--radius-full); transition: width var(--duration-fast) linear; }
.loading-page__bar::-moz-progress-bar { background: var(--color-primary); border-radius: var(--radius-full); }
.loading-page__percent { margin: var(--space-2) 0 var(--space-5); font-variant-numeric: tabular-nums; color: var(--color-text-muted); }
.loading-page__skip { color: var(--color-accent-hover); }

@keyframes spirit-float {
  from { transform: translateY(0); }
  to { transform: translateY(-6px); }
}

/* Level pill (DG §6), header and profile */
.level-pill {
  display: inline-flex;
  align-items: center;
  min-height: var(--size-touch-target);
  padding: 0 var(--space-3);
  border-radius: var(--radius-full);
  background: var(--color-surface-alt);
  color: var(--color-primary);
  font-size: var(--font-size-meta);
  font-weight: var(--font-weight-semibold);
  white-space: nowrap;
}
a.level-pill:hover, a.level-pill:focus-visible { color: var(--color-primary-hover); text-decoration: none; }

/* JavaScript toasts (DG §5 Toast, DG §6): stacked above the bottom navigation. */
.toast-region {
  position: fixed;
  left: var(--space-4);
  right: var(--space-4);
  bottom: calc(var(--size-touch-target) + var(--space-5));
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  pointer-events: none;
}
.toast-region .toast { margin: 0; pointer-events: auto; max-width: 480px; animation: toast-in var(--duration-base) var(--easing-standard); }
.toast--warning span { color: var(--color-warning); }
.toast--xp span, .toast--level span { color: var(--color-success); }
.toast--xp { color: var(--color-success); font-weight: var(--font-weight-semibold); }
.toast--badge span { color: var(--color-primary); }
.toast--wide { width: 100%; text-align: center; border: var(--border-width) solid var(--color-primary); }
.toast--badge span[aria-hidden="true"], .toast--level span[aria-hidden="true"] { display: inline-block; animation: badge-sparkle var(--duration-slow) var(--easing-bounce) 2; }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(var(--space-2)); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes badge-sparkle {
  0%, 100% { transform: scale(1) rotate(0); text-shadow: none; }
  50% { transform: scale(1.5) rotate(20deg); text-shadow: 0 0 var(--space-3) var(--color-primary); }
}

/* Comments and Mix Suggestions (DG §5 Comment item, Mix Suggestion card) */
.community-form { margin-bottom: var(--space-4); max-width: 640px; }
.comment-list, .mix-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-3); }
.comment, .mix-card {
  padding: var(--space-4);
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
  overflow-wrap: anywhere;
}
.comment:hover { background: var(--color-surface-alt); }
.mix-card:hover { border-color: var(--color-accent); }
.comment__meta { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-1) var(--space-2); margin: 0 0 var(--space-2); color: var(--color-text-muted); font-size: var(--font-size-meta); line-height: var(--line-height-meta); }
.comment__author { color: var(--color-text); font-weight: var(--font-weight-semibold); }
.level-label { padding: 0 var(--space-2); border-radius: var(--radius-full); background: var(--color-surface-alt); color: var(--color-primary); }
.comment__body { margin: 0; white-space: pre-line; }

/* Member pictures (D-33): round crop on a light disc, so the dark placeholder silhouette stays visible. */
.avatar {
  flex: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  object-fit: cover;
  background: var(--color-accent-hover);
  border: 2px solid var(--color-accent);
}
.avatar--small { width: 28px; height: 28px; border-width: 1px; }
.avatar--large { width: 96px; height: 96px; border-width: 3px; box-shadow: 0 0 var(--space-3) var(--color-glow); }
.avatar-editor { display: flex; flex-wrap: wrap; align-items: flex-start; gap: var(--space-4); }
.avatar-editor__form { flex: 1 1 260px; max-width: 480px; }

/* Who rated this drink (signed-in viewers only, D-32). */
.rater-list { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-2); }
.rater {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-meta);
}
.rater[hidden] { display: none; }
.rater__who { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-1) var(--space-2); flex: 1 1 auto; }
.rater__stars { color: var(--color-primary); font-size: 1.4rem; letter-spacing: 2px; line-height: 1; }
.rater__star--empty { color: var(--color-star-empty); }
.comment__actions { display: flex; flex-wrap: wrap; align-items: flex-start; gap: var(--space-2); margin-top: var(--space-2); }
.comment__actions form { margin: 0; }
.comment__actions .link-button, .comment__edit summary { width: auto; }
.comment__edit { flex: 1 1 100%; }
.comment__edit summary { display: inline-flex; list-style: none; }
.comment__edit summary::-webkit-details-marker { display: none; }
.comment__edit[open] summary { color: var(--color-text-muted); }
.mix-card__pair { display: flex; align-items: center; gap: var(--space-2); margin-bottom: var(--space-2); }
.mix-card__thumb { width: calc(var(--space-8)); height: calc(var(--space-8)); border-radius: var(--radius-sm); object-fit: contain; background: var(--color-surface-alt); }
.mix-card__thumb--empty { display: inline-flex; align-items: center; justify-content: center; color: var(--color-primary); }
.mix-card__plus { color: var(--color-primary); font-size: var(--font-size-h2-mobile); font-weight: var(--font-weight-bold); }
.mix-card__title, .mix-card__note { margin: 0 0 var(--space-2); }
.mix-card__note { color: var(--color-text-muted); white-space: pre-line; }

/* List toggles (DG §5) */
.list-toggles { display: flex; flex-wrap: wrap; gap: var(--space-2); }
/* Anonymous totals: how many members have the drink on each list (product page). */
.list-totals { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-4); color: var(--color-text-muted); font-size: var(--font-size-meta); }
.list-totals__item { display: inline-flex; align-items: center; gap: var(--space-1); }
.list-totals strong { color: var(--color-text); }
.list-toggle { margin: 0; }
.list-toggle[hidden] { display: none; }

/* Profile (Story 3.5, DG §6) */
.profile__level { max-width: none; margin: 0 0 var(--space-4); }
.profile__level h2 { margin: 0 0 var(--space-3); }
.xp-progress {
  display: block;
  width: 100%;
  height: var(--space-3);
  margin-top: var(--space-2);
  border: 0;
  border-radius: var(--radius-full);
  background: var(--color-surface-alt);
  overflow: hidden;
  appearance: none;
}
.xp-progress::-webkit-progress-bar { background: var(--color-surface-alt); border-radius: var(--radius-full); }
.xp-progress::-webkit-progress-value { background: var(--color-primary); border-radius: var(--radius-full); }
.xp-progress::-moz-progress-bar { background: var(--color-primary); border-radius: var(--radius-full); }
.badge-grid { list-style: none; margin: var(--space-4) 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-3); }
.badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-4);
  text-align: center;
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
}
.badge__emblem {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--space-8);
  height: var(--space-8);
  border-radius: var(--radius-full);
  border: calc(var(--border-width) * 2) solid var(--color-border);
  font-size: var(--font-size-h2);
}
.badge--earned .badge__emblem { border-color: transparent; color: var(--color-primary); box-shadow: 0 0 var(--space-3) var(--color-glow); }
.badge--locked .badge__title { opacity: 0.6; }
.badge--locked .badge__icon { opacity: 0.6; }
.badge--progress .badge__icon { opacity: 0.85; color: var(--color-accent-hover); }
.badge__count { color: var(--color-accent-hover); font-size: var(--font-size-meta); font-weight: var(--font-weight-semibold); }

/* Progress ring and pie fill (SVG, pathLength 100, so the dash equals the percent). The ring
   replaces the emblem border; it starts at 12 o'clock. */
.badge__emblem { position: relative; border-color: transparent; }
.badge__ring { position: absolute; inset: calc(var(--border-width) * -2); width: calc(100% + var(--border-width) * 4); height: calc(100% + var(--border-width) * 4); transform: rotate(-90deg); overflow: visible; }
.badge__ring circle { fill: none; }
.badge__ring-track { stroke: var(--color-border); stroke-width: 3; }
.badge__ring-fill { stroke: var(--color-accent); stroke-width: 3; stroke-linecap: round; }
.badge__ring-pie { stroke: var(--color-accent); stroke-width: 22; opacity: 0.45; }
.badge__icon { position: relative; line-height: 1; }
.badge--earned .badge__ring-fill { stroke: var(--color-primary); }
.badge--earned .badge__ring-pie { stroke: var(--color-primary); opacity: 0.2; }

/* Earned badges keep a calm, endless celebration: a glow that breathes, a dotted halo that
   orbits and an emblem that floats (D-34). */
.badge--earned { border-color: var(--color-primary); }
.badge--earned .badge__emblem { animation: badge-breathe 3.2s ease-in-out infinite; }
.badge--earned .badge__ring-track { stroke: var(--color-primary); stroke-width: 2; stroke-dasharray: 2 6; opacity: 0.9; }
.badge--earned .badge__ring { animation: badge-orbit 16s linear infinite; }
.badge--earned .badge__icon { display: inline-block; animation: badge-float 4s ease-in-out infinite; }
@keyframes badge-breathe {
  0%, 100% { box-shadow: 0 0 var(--space-2) var(--color-glow); }
  50% { box-shadow: 0 0 var(--space-5) var(--color-primary); }
}
@keyframes badge-orbit { from { transform: rotate(-90deg); } to { transform: rotate(270deg); } }
@keyframes badge-float {
  0%, 100% { transform: translateY(0) rotate(0deg) scale(1); }
  50% { transform: translateY(-3px) rotate(-6deg) scale(1.08); }
}
@keyframes badge-twinkle { 0%, 100% { opacity: 1; } 50% { opacity: 0.45; } }
.badge__title { font-weight: var(--font-weight-semibold); }
.badge__description { color: var(--color-text-muted); font-size: var(--font-size-meta); line-height: var(--line-height-meta); }

/* Danger zone (Story 9.2, DG §5 Rules) */
.danger-zone {
  max-width: 560px;
  margin: var(--space-6) auto 0;
  padding: var(--space-5);
  border: var(--border-width) solid var(--color-error);
  border-radius: var(--radius-md);
}
.danger-zone h2 { margin-top: 0; font-size: var(--font-size-h2-mobile); }
.danger-zone__details summary { list-style: none; }
.danger-zone__details summary::-webkit-details-marker { display: none; }
.profile .danger-zone { margin-left: 0; }

/* Home hero spirit stage: reserved square, filled by the three.js scene after LCP (NFR-2). */
.catalogue-intro { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: var(--space-4); }
.hero-spirit {
  position: relative;
  width: var(--size-spirit-stage);
  height: var(--size-spirit-stage);
  border-radius: var(--radius-full);
}
.hero-spirit > img, .hero-spirit > video, .hero-spirit > canvas { position: absolute; inset: 0; width: 100%; height: 100%; border-radius: var(--radius-full); }
.hero-spirit > canvas { border-radius: 0; }

/* Whisper spirit mascot (DG §8): fixed bottom-right, above the bottom navigation, reserved size.
   pointer-events none so it never blocks a button; app code handles the double tap to dismiss. */
.mascot {
  position: fixed;
  right: var(--space-3);
  bottom: calc(var(--size-touch-target) + var(--space-4));
  z-index: 15;
  width: var(--size-mascot);
  height: var(--size-mascot);
  pointer-events: none;
  transition: opacity var(--duration-base) var(--easing-standard);
}
.mascot > img, .mascot > video, .mascot > canvas { display: block; width: 100%; height: 100%; }
.mascot > img, .mascot > video { border-radius: var(--radius-full); box-shadow: 0 0 var(--space-5) var(--color-glow); }
.mascot.is-dismissed { opacity: 0; }
.mascot--fallback > video, .mascot--fallback > img { animation: spirit-float 3s var(--easing-standard) infinite alternate; }
.mascot.is-spin > * { animation: mascot-spin var(--duration-slow) var(--easing-bounce); }
.mascot.is-nod > * { animation: mascot-nod var(--duration-slow) var(--easing-standard); }
.mascot.is-celebrate > * { animation: mascot-celebrate calc(var(--duration-slow) * 2) var(--easing-bounce); }
.mascot.is-shake > * { animation: mascot-shake var(--duration-slow) var(--easing-standard); }
.mascot.is-konami > * { animation: mascot-konami calc(var(--duration-slow) * 4) var(--easing-bounce); }

@keyframes mascot-spin { from { transform: rotate(0); } to { transform: rotate(360deg); } }
@keyframes mascot-nod { 0%, 100% { transform: translateY(0); } 30% { transform: translateY(var(--space-2)); } 60% { transform: translateY(calc(var(--space-1) * -1)); } }
@keyframes mascot-celebrate { 0%, 100% { transform: scale(1) translateY(0); } 40% { transform: scale(1.25) translateY(calc(var(--space-5) * -1)); } }
@keyframes mascot-shake { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(calc(var(--space-1) * -1)); } 75% { transform: translateX(var(--space-1)); } }
@keyframes mascot-konami {
  0% { transform: rotate(0) scale(1); filter: hue-rotate(0); }
  50% { transform: rotate(540deg) scale(1.4); filter: hue-rotate(180deg); }
  100% { transform: rotate(720deg) scale(1); filter: hue-rotate(360deg); }
}

/* Interaction effects (DG §7.1, motion.js). Transform and opacity only, so layout never shifts. */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 30;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(var(--progress, 0));
  transform-origin: left center;
  pointer-events: none;
}
.site-header { transition: box-shadow var(--duration-base) var(--easing-standard); }
.site-header.is-scrolled { box-shadow: 0 var(--space-1) var(--space-5) var(--color-glow); }
/* One full turn plus zoom at full motion; glow only when --motion-zoom is 1 (reduced motion). */
.brand__logo { transition: transform var(--duration-slow) var(--easing-bounce), box-shadow var(--duration-base) var(--easing-standard); }
.brand:hover .brand__logo, .brand:focus-visible .brand__logo { box-shadow: 0 0 var(--space-4) var(--color-glow); transform: rotate(calc((var(--motion-zoom) - 1) * 4500deg)) scale(var(--motion-zoom)); }

/* Headline shimmer: a slow gold-to-violet sweep through the page title. */
.catalogue-intro h1, .lists-page > h1 {
  background: linear-gradient(100deg, var(--color-text) 0%, var(--color-text) 35%, var(--color-primary) 50%, var(--color-accent) 60%, var(--color-text) 75%, var(--color-text) 100%);
  background-size: 300% 100%;
  background-position: 100% 0;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: headline-shimmer 7s var(--easing-standard) infinite;
}
@keyframes headline-shimmer { 0%, 20% { background-position: 100% 0; } 80%, 100% { background-position: 0 0; } }

/* Buttons and chips: lift, glow and press. */
.button, .chip, .link-button { position: relative; overflow: hidden; isolation: isolate; }
.button {
  transition: background-color var(--duration-fast) var(--easing-standard), transform var(--duration-base) var(--easing-bounce),
    box-shadow var(--duration-base) var(--easing-standard), color var(--duration-fast) var(--easing-standard);
}
.chip { transition: transform var(--duration-base) var(--easing-bounce), box-shadow var(--duration-base) var(--easing-standard), border-color var(--duration-fast) var(--easing-standard); }
.button:hover, .button:focus-visible, .chip:not(.chip--static):hover, .chip:not(.chip--static):focus-visible {
  transform: translateY(calc(var(--motion-lift) / -2));
  box-shadow: 0 var(--space-1) var(--space-4) var(--color-glow);
}
.button:active, .chip:not(.chip--static):active { transform: scale(var(--motion-press)); box-shadow: none; }
/* Light sweep across primary buttons on hover. */
.button--primary::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(110deg, transparent 30%, rgb(255 255 255 / 0.45) 50%, transparent 70%);
  transform: translateX(-120%);
  opacity: 0;
  transition: transform var(--duration-slow) var(--easing-standard), opacity var(--duration-base) var(--easing-standard);
}
.button--primary:hover::after, .button--primary:focus-visible::after { transform: translateX(120%); opacity: 1; }

/* Product cards: lift, pointer tilt (motion.js), spotlight and image zoom. */
.product-card {
  position: relative;
  transform: perspective(900px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg)) translateY(var(--card-lift, 0px)) scale(var(--card-zoom, 1));
  transition: transform var(--duration-base) var(--easing-standard), box-shadow var(--duration-base) var(--easing-standard), border-color var(--duration-fast) var(--easing-standard);
}
.product-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(circle at var(--spot-x, 50%) var(--spot-y, 0%), rgb(255 255 255 / 0.14), transparent 60%);
  opacity: 0;
  transition: opacity var(--duration-base) var(--easing-standard);
  pointer-events: none;
}
.product-card .product-image { transition: transform var(--duration-slow) var(--easing-standard); }
.product-card .activity-badge { transition: transform var(--duration-base) var(--easing-bounce), background-color var(--duration-base) var(--easing-standard), color var(--duration-base) var(--easing-standard); }
.product-card:hover, .product-card:focus-visible {
  --card-lift: calc(var(--motion-lift) * -1);
  --card-zoom: var(--motion-card-zoom);
  z-index: 1;
  box-shadow: 0 var(--space-3) var(--space-6) var(--color-glow), 0 0 0 var(--border-width) var(--color-accent);
}
.product-card:hover::after, .product-card:focus-visible::after { opacity: 1; }
.product-card:hover .product-image, .product-card:focus-visible .product-image { transform: scale(var(--motion-zoom)); }
.product-card:hover .activity-badge, .product-card:focus-visible .activity-badge { background: var(--color-accent); color: var(--color-on-primary); transform: scale(var(--motion-zoom)); }
.product-card:active { --card-lift: 0px; transform: perspective(900px) scale(var(--motion-press)); }
.admin-list__item { transition: background-color var(--duration-base) var(--easing-standard), transform var(--duration-base) var(--easing-standard); }
.admin-list__item:hover { background: var(--color-surface-alt); transform: translateX(calc(var(--motion-lift) / 2)); }

/* Twinkling stars over a hovered or focused product card (motion.js). */
.card-sparkle {
  position: absolute;
  z-index: 2;
  margin: calc(var(--sparkle-size, 1em) / -2) 0 0 calc(var(--sparkle-size, 1em) / -2);
  font-size: var(--sparkle-size, 1em);
  line-height: 1;
  color: var(--color-primary);
  text-shadow: 0 0 var(--space-2) var(--color-primary);
  opacity: 0;
  pointer-events: none;
  animation: card-sparkle 900ms var(--easing-standard) var(--sparkle-delay, 0ms) both;
}
.card-sparkle--violet { color: var(--color-accent-hover); text-shadow: 0 0 var(--space-2) var(--color-accent); }
@keyframes card-sparkle {
  0% { opacity: 0; transform: scale(0) rotate(0); }
  40% { opacity: 1; transform: scale(1.2) rotate(72deg); }
  100% { opacity: 0; transform: scale(0.4) rotate(144deg) translateY(calc(var(--space-3) * -1)); }
}
@keyframes card-sparkle-fade { 0%, 100% { opacity: 0; } 40% { opacity: 1; } }

/* Click ripple from the pointer position. */
.ripple {
  position: absolute;
  z-index: -1;
  border-radius: var(--radius-full);
  background: currentColor;
  opacity: 0;
  pointer-events: none;
  animation: ripple var(--duration-ripple) var(--easing-standard);
}
.product-card .ripple { z-index: 1; background: var(--color-accent); }
@keyframes ripple { from { transform: scale(0); opacity: 0.35; } to { transform: scale(1); opacity: 0; } }

/* Spark burst after a saved rating, comment, Mix Suggestion or list change. */
.burst { position: fixed; z-index: 25; width: 0; height: 0; pointer-events: none; }
.burst__spark {
  position: absolute;
  left: calc(var(--space-1) * -1);
  top: calc(var(--space-1) * -1);
  width: var(--space-2);
  height: var(--space-2);
  border-radius: var(--radius-full);
  background: var(--color-primary);
  box-shadow: 0 0 var(--space-2) var(--color-primary);
  opacity: 0;
  animation: spark 800ms var(--easing-standard);
}
.burst__spark:nth-child(even) { background: var(--color-accent); box-shadow: 0 0 var(--space-2) var(--color-accent); }
@keyframes spark {
  0% { opacity: 1; transform: rotate(var(--angle)) translateX(0) scale(1); }
  100% { opacity: 0; transform: rotate(var(--angle)) translateX(56px) scale(0.2); }
}

/* Scroll reveal: hidden only once motion.js runs, and only for elements below the first screen. */
.motion-ready .reveal { opacity: 0; transform: translateY(var(--motion-rise)); }
.motion-ready .reveal.is-revealed {
  opacity: 1;
  transform: none;
  transition: opacity var(--duration-slow) var(--easing-standard) var(--reveal-delay, 0ms), transform var(--duration-slow) var(--easing-standard) var(--reveal-delay, 0ms);
}

/* Reduced motion keeps the calm tier (DG §7.1): colour, glow, shadow and opacity transitions and
   fade-only ripples and sparks; movement keyframes stop. The whisper spirit always animates
   (owner decision D-29, 2026-10-13). */
@media (prefers-reduced-motion: reduce) {
  :where(*, *::before, *::after):not(.mascot, .mascot *, .hero-spirit, .hero-spirit *, .ripple, .burst__spark, .card-sparkle, .badge--earned .badge__emblem, .badge--earned .badge__ring) { animation: none !important; }
  :where(*, *::before, *::after):not(.mascot, .mascot *, .hero-spirit, .hero-spirit *) { transition-property: opacity, color, background-color, border-color, box-shadow, filter !important; }
  .ripple { animation-name: ripple-fade; }
  .burst__spark { animation-name: spark-fade; }
  .card-sparkle { animation-name: card-sparkle-fade; }
  /* D-34: earned badges keep breathing (glow only); the orbit becomes a slow twinkle in place. */
  .badge--earned .badge__ring { animation-name: badge-twinkle; animation-duration: 3.2s; animation-timing-function: ease-in-out; }
  /* D-31: the small card zoom stays under reduced motion, as an instant change without easing. */
  .product-card { transition-property: transform, opacity, color, background-color, border-color, box-shadow, filter !important; transition-duration: var(--duration-fast); }
  .catalogue-intro h1, .lists-page > h1 { background-position: 50% 0; }
}
@keyframes ripple-fade { from { transform: scale(1); opacity: 0.25; } to { transform: scale(1); opacity: 0; } }
@keyframes spark-fade { 0% { opacity: 1; transform: rotate(var(--angle)) translateX(32px); } 100% { opacity: 0; transform: rotate(var(--angle)) translateX(32px); } }

/* --breakpoint-sm: top navigation replaces the bottom bar. */
@media (min-width: 640px) {
  body { padding-bottom: 0; }
  h1 { font-size: var(--font-size-h1); }
  .site-header__inner, .page { padding-left: var(--space-6); padding-right: var(--space-6); }
  .site-header { position: sticky; top: 0; z-index: 12; }
  .top-nav { display: flex; gap: var(--space-4); }
  .bottom-nav { display: none; }
  .spirit { width: var(--size-mascot-desktop); height: var(--size-mascot-desktop); }
  .mascot { width: var(--size-mascot-desktop); height: var(--size-mascot-desktop); right: var(--space-5); bottom: var(--space-5); }
  .toast-region { bottom: var(--space-5); }
  .hero-spirit { width: var(--size-spirit-stage-desktop); height: var(--size-spirit-stage-desktop); }
  .badge-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); }
  .catalogue-filter__search { flex: 1 1 auto; }
}

/* --breakpoint-md: four-column grid; detail page in two columns. */
@media (min-width: 1024px) {
  .product-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .product-detail { grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); align-items: start; }
}