/* Lemon Ginger No Churn Ice Cream - Poster-Style Slide Deck */

:root {
  --cover-gold: #d9a84f;
  --cover-gold-dark: #c4933a;
  --why-text-ink: #333333;
  --recipe-mustard: #d4b896;
  --recipe-parchment: #e8dcc4;
  --recipe-ink: #2c2416;
  --text-ink: var(--recipe-ink);
  --overlay-white: rgba(255, 255, 255, 0.92);
  --border-purple: #c4b5d4;
  --radius: 8px;
  --shadow: 0 4px 24px rgba(44, 36, 22, 0.2);
  --transition: 0.3s ease;
  --font-display: "Playfair Display", Georgia, serif;
  --font-script: "Great Vibes", cursive;
}

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

html { scroll-behavior: smooth; }

@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;
  }
}

body {
  margin: 0;
  font-family: var(--font-display);
  background: linear-gradient(135deg, var(--recipe-parchment) 0%, var(--recipe-mustard) 100%);
  color: var(--text-ink);
  min-height: 100vh;
  line-height: 1.6;
}

body.on-cover {
  background-image: linear-gradient(135deg, rgba(232, 220, 196, 0.5) 0%, rgba(212, 184, 150, 0.6) 100%),
    url("../../assets/cover-bg.png");
  background-size: auto, cover;
  background-position: center;
  background-repeat: no-repeat;
}

body.on-why {
  background-image: linear-gradient(135deg, rgba(255, 252, 245, 0.75) 0%, rgba(245, 240, 230, 0.8) 100%),
    url("../../assets/why-ice-cream-bg.jpg");
  background-size: auto, cover;
  background-position: center;
  background-repeat: no-repeat;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 100;
  padding: 0.75rem 1.25rem;
  background: var(--recipe-ink);
  color: var(--recipe-parchment);
  text-decoration: none;
  border-radius: var(--radius);
  font-weight: 600;
  transition: top var(--transition);
}

.skip-link:focus {
  top: 1rem;
  outline: 3px solid var(--cover-gold);
  outline-offset: 2px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 1rem 1.5rem;
  background: var(--overlay-white);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 960px;
  margin: 0 auto;
}

.brand {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--recipe-ink);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.brand:focus {
  outline: 2px solid var(--cover-gold);
  outline-offset: 2px;
  border-radius: 4px;
}

.nav-pills {
  display: flex;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-pills a {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--recipe-ink);
  text-decoration: none;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}

.nav-pills a:hover, .nav-pills a:focus {
  background: var(--cover-gold);
  color: white;
}

.nav-pills a:focus {
  outline: 2px solid var(--recipe-ink);
  outline-offset: 2px;
}

main {
  max-width: 980px;
  margin: 0 auto;
  padding: 2rem 1.5rem 6rem;
}

.slides { position: relative; }

.slides-error {
  padding: 2rem;
  color: var(--recipe-ink);
  text-align: center;
}

.slides-error code {
  background: rgba(0, 0, 0, 0.06);
  padding: 0.2em 0.4em;
  border-radius: 4px;
}

.slide {
  display: none !important;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  min-height: 420px;
  border: 2px solid var(--border-purple);
}

.slide.is-active { display: block !important; }

.slide-content {
  padding: 2.5rem;
  min-height: 420px;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.slide--cover .slide-content {
  justify-content: center;
  align-items: center;
  text-align: center;
}

.slide-content--cover { background: transparent; }

.cover-title-box {
  padding: 2rem 2.5rem;
  background: linear-gradient(135deg, #d9a84f 0%, #c4933a 100%);
  border-radius: var(--radius);
  border: 2px solid var(--border-purple);
}

.slide-title--cover {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 500;
  color: white;
  letter-spacing: 0.12em;
  line-height: 1.4;
  margin: 0 0 0.5rem;
  text-transform: uppercase;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.slide-separator {
  display: block;
  color: white;
  font-size: 1.25rem;
  margin: 0.25rem 0;
  letter-spacing: 0.2em;
}

.slide-author {
  font-family: var(--font-script);
  font-size: 2rem;
  font-weight: 400;
  color: white;
  margin: 0.5rem 0 0;
  letter-spacing: 0.05em;
}

.slide--cover.is-active {
  display: flex !important;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.slide--cover .slide-content {
  flex-shrink: 0;
  min-height: auto;
}

.toc-container {
  padding: 1.25rem 2rem;
  background: linear-gradient(135deg, #d9a84f 0%, #c4933a 100%);
  border-radius: var(--radius);
  border: 2px solid var(--border-purple);
  width: 100%;
  max-width: 360px;
  margin: 0 auto;
  text-align: center;
}

.toc-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: white;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 0.75rem;
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: inline-block;
  text-align: center;
}

.toc-list li { margin-bottom: 0.5rem; }
.toc-list li:last-child { margin-bottom: 0; }

.toc-link {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1rem;
  color: white;
  text-decoration: none;
  padding: 0.35rem 0.5rem;
  margin: 0 -0.5rem;
  border-radius: 4px;
  transition: background-color var(--transition), color var(--transition);
  outline: none;
}

.toc-link:hover { background-color: rgba(255, 255, 255, 0.25); }
.toc-link:active { background-color: rgba(255, 255, 255, 0.4); }
.toc-link:focus-visible {
  background-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.5);
}

.slide-content--why {
  background: transparent;
}

body:not(.on-why) .slide-content--why {
  background: linear-gradient(to bottom, #fffcf5 0%, #f5f0e6 100%);
}

body:not(.on-why) .slide-content--why .why-content-box {
  background: transparent;
  box-shadow: none;
  border: none;
  padding: 0;
}

.why-content-box {
  padding: 2rem 2.5rem;
  background: linear-gradient(135deg, rgba(255, 252, 245, 0.95) 0%, rgba(245, 240, 230, 0.95) 100%);
  border-radius: var(--radius);
  border: 2px solid var(--border-purple);
  box-shadow: var(--shadow);
  max-width: 56ch;
  margin: 0 auto;
}

.slide-title--why {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vw, 1.6rem);
  font-weight: 600;
  color: var(--why-text-ink);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 1.5rem;
  text-align: center;
}

.slide-body--why {
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--why-text-ink);
  line-height: 1.7;
  margin: 0;
  max-width: 52ch;
  margin-left: auto;
  margin-right: auto;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.slide-content--egg-whites {
  background: linear-gradient(to bottom, #e8ddd0 0%, #d3bba6 100%);
  text-align: center;
}

.slide-title--egg-whites a {
  color: inherit;
  text-decoration: inherit;
}

.slide-title--egg-whites a:hover {
  opacity: 0.85;
}

.slide-title--egg-whites a:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

.slide-title--egg-whites {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.8vw, 1.5rem);
  font-weight: 700;
  color: var(--why-text-ink);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 1.5rem;
  text-align: center;
  text-decoration: underline;
}

.slide-body--egg-whites {
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--why-text-ink);
  line-height: 1.7;
  margin: 0 auto;
  max-width: 48ch;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  text-align: center;
}

.slide-content--recipe {
  background: linear-gradient(135deg, #e8dcc4 0%, #d4b896 100%);
  justify-content: flex-start;
}

.recipe-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 2rem;
  width: 100%;
}

.recipe-title a {
  color: inherit;
  text-decoration: inherit;
}

.recipe-title a:hover {
  opacity: 0.85;
}

.recipe-title a:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

.recipe-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--recipe-ink);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 1.25rem;
}

.recipe-heading {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--recipe-ink);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 0.25rem;
}

.recipe-per-serving {
  font-size: 0.8rem;
  color: var(--recipe-ink);
  margin: 0 0 0.5rem;
}

.recipe-sidebar { display: flex; flex-direction: column; gap: 1.5rem; }

.recipe-nutrition .api-content { font-size: 0.9rem; line-height: 1.6; }

.recipe-ingredients-list ul { list-style: none; padding: 0; margin: 0; }

.recipe-ingredients-list li {
  position: relative;
  padding-left: 1rem;
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
}

.recipe-ingredients-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--recipe-ink);
  font-weight: 700;
}

.recipe-steps { font-size: 0.95rem; line-height: 1.7; color: var(--recipe-ink); }

.recipe-steps .instruction-section { margin-bottom: 1rem; }

.recipe-steps .instruction-heading {
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
  letter-spacing: 0.03em;
}

.recipe-steps .instruction-text { margin: 0; }

.slide-content--best-time { background: #d4d4d4; }

.slide-title--best-time {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  font-weight: 700;
  color: var(--why-text-ink);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 1.25rem;
  text-align: center;
}

.slide-body--best-time {
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--why-text-ink);
  line-height: 1.7;
  margin: 0;
  text-align: justify;
}

.best-time-body {
  position: relative;
  max-width: 56ch;
  margin: 0 auto;
}

.best-time-images {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  margin: 1.5rem auto 0;
}

.best-time-image {
  text-align: center;
}

.best-time-image a {
  display: inline-block;
}

.best-time-image img {
  display: block;
  max-width: 200px;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.best-time-image-caption {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--why-text-ink);
  margin: 0.35rem 0 0;
  font-style: italic;
}

.best-time-image a:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

/* --- Slide 6: Restrictions --- */
.slide-content--restrictions {
  background: #d4d4d4;
  justify-content: flex-start;
  overflow-y: auto;
}

.slide-title--restrictions {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  font-weight: 700;
  color: var(--why-text-ink);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 1.25rem;
  text-align: center;
}

.restrictions-body {
  max-width: 58ch;
  margin: 0 auto;
}

.restrictions-section {
  margin-bottom: 1.5rem;
}

.restrictions-section--bordered {
  border: 2px solid #8b6b9e;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
}

.restrictions-heading {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--why-text-ink);
  text-transform: uppercase;
  text-decoration: underline;
  margin: 0 0 0.5rem;
}

.restrictions-heading a {
  color: inherit;
  text-decoration: inherit;
}

.restrictions-heading a:hover {
  opacity: 0.85;
}

.restrictions-heading a:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

.restrictions-text {
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--why-text-ink);
  line-height: 1.65;
  margin: 0 0 0.5rem;
  text-transform: uppercase;
}

.restrictions-list {
  margin: 0.5rem 0 1rem 1.25rem;
  padding: 0;
}

.restrictions-list li {
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--why-text-ink);
  line-height: 1.6;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

/* --- Slide 7: Cooking Method --- */
.slide-content--cooking-method {
  background: #d4d4d4;
  justify-content: flex-start;
  overflow-y: auto;
}

.slide-title--cooking-method {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  font-weight: 700;
  color: var(--why-text-ink);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 1.25rem;
  text-align: center;
}

.cooking-method-body {
  max-width: 58ch;
  margin: 0 auto;
}

.cooking-method-intro {
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--why-text-ink);
  line-height: 1.7;
  margin: 0 0 1.25rem;
  text-transform: uppercase;
}

.cooking-method-section {
  margin-bottom: 1.5rem;
}

.cooking-method-heading {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--why-text-ink);
  text-transform: uppercase;
  text-decoration: underline;
  margin: 0 0 0.5rem;
}

.cooking-method-list {
  margin: 0.5rem 0 0 1.25rem;
  padding: 0;
}

.cooking-method-list li {
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--why-text-ink);
  line-height: 1.6;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.cooking-method-list--numbered {
  list-style: decimal;
}

.api-loading { font-style: italic; opacity: 0.9; font-size: 0.95rem; }
.api-error { color: #8b4513; font-size: 0.9rem; }

.site-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 40;
  padding: 1rem 1.5rem;
  background: var(--overlay-white);
  backdrop-filter: blur(8px);
  box-shadow: 0 -4px 24px rgba(44, 36, 22, 0.1);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 960px;
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 1rem;
}

.slide-counter { font-size: 0.9rem; color: var(--recipe-ink); }
.nav-controls { display: flex; gap: 0.5rem; }

.btn-prev, .btn-next {
  padding: 0.6rem 1.25rem;
  font-family: inherit;
  font-size: 1rem;
  color: var(--recipe-ink);
  background: rgba(255, 255, 255, 0.8);
  border: 2px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.btn-prev:hover:not(:disabled), .btn-next:hover:not(:disabled) {
  background: var(--cover-gold);
  color: white;
}

.btn-prev:focus, .btn-next:focus, .btn-prev:focus-visible, .btn-next:focus-visible {
  outline: none;
  border-color: var(--recipe-ink);
  box-shadow: 0 0 0 2px var(--recipe-parchment);
}

.btn-prev:disabled, .btn-next:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.keyboard-hint { font-size: 0.85rem; color: var(--recipe-ink); opacity: 0.8; }

.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;
}

/* --- Accessibility: Focus & Contrast --- */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--cover-gold);
  outline-offset: 2px;
}

@media (prefers-contrast: more) {
  .toc-link, .nav-pills a, .btn-prev, .btn-next {
    border: 2px solid var(--recipe-ink);
  }
}

/* --- Touch targets (min 44x44px) --- */
@media (pointer: coarse) {
  .nav-pills a { padding: 0.6rem 1.25rem; min-height: 44px; }
  .toc-link { padding: 0.5rem 0.75rem; min-height: 44px; }
  .btn-prev, .btn-next { padding: 0.75rem 1.5rem; min-height: 44px; min-width: 44px; }
  .skip-link { padding: 0.75rem 1.25rem; min-height: 44px; }
}

/* --- Tablet --- */
@media (max-width: 900px) {
  main { padding: 1.5rem 1rem 5.5rem; }
  .slide-content { padding: 2rem; }
  .toc-container { max-width: 320px; }
  .cover-title-box { padding: 1.75rem 2rem; }
}

/* --- Mobile landscape & small tablets --- */
@media (max-width: 768px) {
  .recipe-layout { grid-template-columns: 1fr; }
  .recipe-sidebar {
    order: -1;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1rem;
  }
  .recipe-nutrition, .recipe-ingredients { flex: 1; min-width: 180px; }
  .restrictions-body, .best-time-body, .cooking-method-body { max-width: 100%; }
}

/* --- Mobile portrait --- */
@media (max-width: 640px) {
  body { padding-bottom: env(safe-area-inset-bottom, 0); }
  main { padding: 1rem 0.75rem 5rem; }
  .site-header { padding: 0.75rem 1rem; padding-top: calc(0.75rem + env(safe-area-inset-top, 0)); }
  .header-inner { flex-direction: column; gap: 0.75rem; text-align: center; }
  .nav-pills { flex-wrap: wrap; justify-content: center; gap: 0.35rem; }
  .nav-pills a { font-size: 0.85rem; padding: 0.5rem 0.85rem; }
  .brand { font-size: 1rem; }
  .slide { min-height: 320px; }
  .slide-content { padding: 1.25rem; min-height: 320px; }
  .slide-title--cover { letter-spacing: 0.06em; font-size: clamp(1.25rem, 5vw, 1.6rem); }
  .slide-author { font-size: 1.6rem; }
  .slide-body--why, .slide-body--egg-whites, .slide-body--best-time { font-size: 0.85rem; }
  .slide-title--why, .slide-title--egg-whites, .slide-title--best-time, .slide-title--restrictions, .slide-title--cooking-method { font-size: clamp(1rem, 4vw, 1.2rem); }
  .best-time-image img { max-width: 180px; }
  .toc-container { padding: 1rem 1.25rem; max-width: 100%; margin: 0 0.75rem; }
  .toc-title { font-size: 0.9rem; }
  .cover-title-box { padding: 1.5rem 1.25rem; }
  .recipe-title { font-size: 1.4rem; }
  .recipe-heading { font-size: 0.85rem; }
  .restrictions-text, .restrictions-list li, .cooking-method-intro, .cooking-method-list li { font-size: 0.85rem; }
  .site-footer { padding: 0.75rem 1rem; padding-bottom: calc(0.75rem + env(safe-area-inset-bottom, 0)); }
  .footer-inner { flex-direction: column; gap: 0.75rem; text-align: center; }
  .keyboard-hint { font-size: 0.8rem; text-align: center; }
  .slides { margin: 0 0.5rem; }
}

/* --- Small mobile --- */
@media (max-width: 380px) {
  .nav-pills a { padding: 0.45rem 0.65rem; font-size: 0.8rem; }
  .slide-content { padding: 1rem; }
}