/* KRENTOV — css/style.css */

/* ==========================================================================
   1. DESIGN TOKENS
   ========================================================================== */
:root {
  --color-bg-primary: #F5F3EE;
  --color-bg-secondary: #EAE8E2;
  --color-bg-tertiary: #EFEDE7;
  --color-ink-primary: #1A1A16;
  --color-ink-muted: #6A7A4A;
  --color-ink-soft: #4A4A40;
  --color-accent: #7A8A5A;
  --color-accent-dark: #66754A;
  --color-accent-soft: rgba(122, 138, 90, 0.14);
  --color-border: rgba(0, 0, 0, 0.08);
  --color-border-strong: rgba(0, 0, 0, 0.14);
  --color-white: #FFFFFF;

  --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-pill: 999px;

  --shadow-sm: 0 2px 10px rgba(26, 26, 22, 0.06);
  --shadow-md: 0 10px 30px rgba(26, 26, 22, 0.10);
  --shadow-lg: 0 18px 50px rgba(26, 26, 22, 0.14);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;

  --max-width: 1120px;
}

/* ==========================================================================
   2. RESET & BASE
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background-color: var(--color-bg-primary);
  color: var(--color-ink-primary);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  display: block;
  border: 0;
  background-color: var(--color-bg-secondary);
}

a {
  color: var(--color-accent-dark);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

ul, ol {
  margin: 0;
}

button {
  font-family: inherit;
  cursor: pointer;
}

address {
  font-style: normal;
}

/* ==========================================================================
   3. LAYOUT PRIMITIVES
   ========================================================================== */
.container {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}

.split.reverse {
  direction: rtl;
}

.split.reverse > * {
  direction: ltr;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}

/* ==========================================================================
   4. TYPOGRAPHY
   ========================================================================== */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  margin: 0 0 var(--space-4);
  color: var(--color-ink-primary);
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.2rem, 4.6vw, 3.6rem);
  font-weight: 700;
  margin-top: var(--space-3);
}

h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  font-weight: 700;
}

h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

p {
  margin: 0 0 var(--space-4);
  color: var(--color-ink-soft);
}

.lead {
  font-size: 1.2rem;
  color: var(--color-ink-muted);
  line-height: 1.55;
}

.eyebrow, .badge {
  display: inline-block;
  color: var(--color-accent-dark);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
  margin-bottom: var(--space-3);
}

.badge {
  background: var(--color-accent-soft);
  border-radius: var(--radius-pill);
  padding: var(--space-2) var(--space-4);
  margin-bottom: var(--space-4);
}

.micro {
  font-size: 0.82rem;
  color: var(--color-ink-muted);
  text-align: center;
  margin-top: var(--space-3);
}

.micro-fact {
  font-size: 0.9rem;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-5);
}

/* ==========================================================================
   5. HEADER
   ========================================================================== */
.site-header {
  background-color: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 40;
}

.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  padding: var(--space-3) 0;
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.7rem;
  color: var(--color-ink-primary);
}

.nav nav {
  display: flex;
  gap: var(--space-5);
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav nav a {
  font-size: 0.9rem;
  color: var(--color-ink-primary);
  font-weight: 500;
}

.nav nav a:last-child {
  color: var(--color-accent-dark);
  font-weight: 600;
}

/* ==========================================================================
   6. HERO
   ========================================================================== */
.hero {
  padding: var(--space-8) 0;
}

.hero.small {
  padding: var(--space-7) 0;
}

.hero-media img#main-product-img {
  height: 480px;
  max-height: 74vh;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.thumbs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.thumbs img {
  height: 96px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color var(--transition-fast);
}

.thumbs img:hover,
.thumbs img:focus-visible {
  border-color: var(--color-accent);
}

.hero-copy .checklist {
  margin-bottom: var(--space-6);
}

/* ==========================================================================
   7. BUTTONS
   ========================================================================== */
.button {
  display: inline-block;
  background-color: var(--color-accent);
  color: var(--color-white);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-pill);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.02rem;
  text-align: center;
  border: none;
  box-shadow: 0 6px 22px rgba(122, 138, 90, 0.30);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.button:hover,
.button:focus-visible {
  opacity: 0.9;
  text-decoration: none;
  transform: translateY(-1px);
}

.button-block {
  display: block;
  width: 100%;
}

/* ==========================================================================
   8. CHECKLIST
   ========================================================================== */
.checklist {
  list-style: none;
  padding: 0;
}

.checklist li {
  position: relative;
  padding-left: 1.9rem;
  margin: 0.9rem 0;
  color: var(--color-ink-primary);
  font-size: 0.95rem;
  line-height: 1.55;
}

.checklist li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-accent-dark);
  font-weight: 700;
}

/* ==========================================================================
   9. FACTS / ALTERNATING SECTIONS
   ========================================================================== */
.facts {
  background-color: var(--color-bg-secondary);
  padding: var(--space-8) 0;
}

.facts.alt {
  background-color: var(--color-bg-primary);
}

.facts img,
.cta-final img {
  height: 340px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   10. REVIEWS
   ========================================================================== */
.reviews {
  padding: var(--space-8) 0;
  background-color: var(--color-bg-primary);
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.review-card {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}

.review-head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}

.review-name {
  font-weight: 600;
  color: var(--color-ink-primary);
  font-size: 0.92rem;
}

.review-loc {
  font-size: 0.78rem;
  color: var(--color-ink-muted);
}

.stars {
  color: var(--color-accent-dark);
  font-size: 1rem;
  margin-bottom: var(--space-2);
}

.review-title {
  font-weight: 700;
  color: var(--color-ink-primary);
  font-size: 0.95rem;
  margin-bottom: var(--space-2);
}

.review-card p {
  font-size: 0.9rem;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-2);
}

.verified {
  font-size: 0.72rem;
  color: var(--color-ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   11. CTA FINAL
   ========================================================================== */
.cta-final {
  padding: var(--space-8) 0 var(--space-9);
  background-color: var(--color-bg-secondary);
}

/* ==========================================================================
   12. FORMS
   ========================================================================== */
.card {
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ink-primary);
}

input, textarea {
  font-family: inherit;
  font-size: 0.95rem;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-strong);
  background-color: var(--color-white);
  color: var(--color-ink-primary);
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: var(--color-accent);
}

form .button {
  margin-top: var(--space-2);
}

/* ==========================================================================
   13. LEGAL PAGES
   ========================================================================== */
.legal {
  max-width: 780px;
  padding: var(--space-8) 1rem var(--space-9);
}

.legal h1 {
  margin-bottom: var(--space-6);
}

.legal h2 {
  font-size: 1.15rem;
  margin-top: var(--space-7);
  margin-bottom: var(--space-3);
  font-family: var(--font-body);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-accent-dark);
}

.legal p {
  font-size: 0.96rem;
  color: var(--color-ink-soft);
}

/* ==========================================================================
   14. FOOTER
   ========================================================================== */
.site-footer {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-8) 0 var(--space-5);
  margin-top: var(--space-7);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-7);
  padding-bottom: var(--space-6);
}

.footer-grid p {
  font-size: 0.86rem;
  color: var(--color-ink-muted);
  line-height: 1.6;
}

.footer-grid h3 {
  font-family: var(--font-body);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-ink-primary);
  margin-bottom: var(--space-3);
}

.footer-grid > div:last-child {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-grid > div:last-child a {
  font-size: 0.86rem;
  color: var(--color-ink-soft);
}

.amazon-disclaimer {
  margin-top: var(--space-3);
  font-size: 0.8rem;
  color: var(--color-ink-muted);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-3);
}

.copyright {
  text-align: center;
  font-size: 0.82rem;
  color: var(--color-ink-muted);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-4);
}

/* ==========================================================================
   15. COOKIE BANNER
   ========================================================================== */
.cookie-banner {
  display: none;
  position: fixed;
  left: 50%;
  bottom: 1rem;
  transform: translateX(-50%);
  width: calc(100% - 1.5rem);
  max-width: 900px;
  z-index: 50;
  background-color: rgba(245, 243, 238, 0.97);
  color: var(--color-ink-primary);
  border: 1px solid var(--color-border-strong);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  padding: var(--space-4) var(--space-5);
}

.cookie-banner.is-visible {
  display: block;
}

.cookie-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
}

.cookie-inner p {
  font-size: 0.86rem;
  margin: 0;
  color: var(--color-ink-primary);
}

.cookie-actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  align-items: center;
}

.cookie-actions button {
  border-radius: var(--radius-pill);
  padding: var(--space-2) var(--space-5);
  font-weight: 600;
  font-size: 0.86rem;
  border: 1px solid transparent;
}

.cookie-actions button[data-action="cookies.acceptAll"] {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.cookie-actions button[data-action="cookies.reject"] {
  background-color: transparent;
  color: var(--color-ink-primary);
  border-color: var(--color-border-strong);
}

.cookie-actions button[data-action="cookies.openModal"] {
  background: none;
  border: none;
  color: var(--color-accent-dark);
  text-decoration: underline;
  font-weight: 600;
}

/* ==========================================================================
   16. UTILITIES
   ========================================================================== */
.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;
}

.text-center { text-align: center; }
.text-muted { color: var(--color-ink-muted); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ==========================================================================
   17. RESPONSIVE — TABLET
   ========================================================================== */
@media (max-width: 960px) {
  .review-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
}

/* ==========================================================================
   18. RESPONSIVE — MOBILE
   ========================================================================== */
@media (max-width: 768px) {
  body {
    font-size: 16px;
  }

  .hero-grid,
  .split,
  .split.reverse {
    grid-template-columns: 1fr !important;
    gap: var(--space-6);
    direction: ltr;
  }

  .nav {
    justify-content: flex-start;
  }

  .nav nav {
    justify-content: flex-start;
    gap: var(--space-3);
  }

  .hero-media img#main-product-img {
    height: 340px;
  }

  .facts img,
  .cta-final img {
    height: 240px;
  }

  .review-grid {
    grid-template-columns: 1fr;
  }

  .cookie-inner {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .cookie-actions {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: clamp(1.9rem, 8vw, 2.6rem);
  }

  .container {
    width: calc(100% - 1.5rem);
  }
}

/* ==========================================================================
   19. MOTION & ACCESSIBILITY
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* ==========================================================================
   20. PRINT
   ========================================================================== */
@media print {
  .cookie-banner,
  .button,
  .nav nav,
  .site-header {
    display: none;
  }

  .site-footer {
    background-color: transparent;
  }

  body {
    color: #000;
  }
}

/* ==========================================================================
   21. UTILITY CLASS LIBRARY
   Shared low-level helpers used across pages to keep markup consistent
   without repeating one-off inline styles.
   ========================================================================== */

/* -- Spacing scale: margin -- */
.m-0 { margin: 0; }
.m-1 { margin: var(--space-1); }
.m-2 { margin: var(--space-2); }
.m-3 { margin: var(--space-3); }
.m-4 { margin: var(--space-4); }
.m-5 { margin: var(--space-5); }
.m-6 { margin: var(--space-6); }
.m-7 { margin: var(--space-7); }
.m-8 { margin: var(--space-8); }
.m-9 { margin: var(--space-9); }

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mt-6 { margin-top: var(--space-6); }
.mt-7 { margin-top: var(--space-7); }
.mt-8 { margin-top: var(--space-8); }
.mt-9 { margin-top: var(--space-9); }

.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-7 { margin-bottom: var(--space-7); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-9 { margin-bottom: var(--space-9); }

.ml-1 { margin-left: var(--space-1); }
.ml-2 { margin-left: var(--space-2); }
.ml-3 { margin-left: var(--space-3); }
.ml-4 { margin-left: var(--space-4); }
.ml-5 { margin-left: var(--space-5); }
.ml-6 { margin-left: var(--space-6); }

.mr-1 { margin-right: var(--space-1); }
.mr-2 { margin-right: var(--space-2); }
.mr-3 { margin-right: var(--space-3); }
.mr-4 { margin-right: var(--space-4); }
.mr-5 { margin-right: var(--space-5); }
.mr-6 { margin-right: var(--space-6); }

.mx-auto { margin-left: auto; margin-right: auto; }

/* -- Spacing scale: padding -- */
.p-0 { padding: 0; }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }
.p-6 { padding: var(--space-6); }
.p-7 { padding: var(--space-7); }
.p-8 { padding: var(--space-8); }
.p-9 { padding: var(--space-9); }

.pt-1 { padding-top: var(--space-1); }
.pt-2 { padding-top: var(--space-2); }
.pt-3 { padding-top: var(--space-3); }
.pt-4 { padding-top: var(--space-4); }
.pt-5 { padding-top: var(--space-5); }
.pt-6 { padding-top: var(--space-6); }
.pt-7 { padding-top: var(--space-7); }
.pt-8 { padding-top: var(--space-8); }
.pt-9 { padding-top: var(--space-9); }

.pb-1 { padding-bottom: var(--space-1); }
.pb-2 { padding-bottom: var(--space-2); }
.pb-3 { padding-bottom: var(--space-3); }
.pb-4 { padding-bottom: var(--space-4); }
.pb-5 { padding-bottom: var(--space-5); }
.pb-6 { padding-bottom: var(--space-6); }
.pb-7 { padding-bottom: var(--space-7); }
.pb-8 { padding-bottom: var(--space-8); }
.pb-9 { padding-bottom: var(--space-9); }

.px-1 { padding-left: var(--space-1); padding-right: var(--space-1); }
.px-2 { padding-left: var(--space-2); padding-right: var(--space-2); }
.px-3 { padding-left: var(--space-3); padding-right: var(--space-3); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-5 { padding-left: var(--space-5); padding-right: var(--space-5); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }

.py-1 { padding-top: var(--space-1); padding-bottom: var(--space-1); }
.py-2 { padding-top: var(--space-2); padding-bottom: var(--space-2); }
.py-3 { padding-top: var(--space-3); padding-bottom: var(--space-3); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-5 { padding-top: var(--space-5); padding-bottom: var(--space-5); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }

/* -- Flexbox utilities -- */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-stretch { align-items: stretch; }
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }
.flex-1 { flex: 1 1 0%; }
.flex-auto { flex: 1 1 auto; }
.flex-none { flex: none; }

/* -- Grid utilities -- */
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* -- Typography utilities -- */
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.leading-tight { line-height: 1.2; }
.leading-normal { line-height: 1.5; }
.leading-relaxed { line-height: 1.65; }
.uppercase { text-transform: uppercase; }
.capitalize { text-transform: capitalize; }
.tracking-wide { letter-spacing: 0.04em; }
.text-balance { text-wrap: balance; }
.text-pretty { text-wrap: pretty; }

/* -- Color utilities (token-based only) -- */
.bg-primary { background-color: var(--color-bg-primary); }
.bg-secondary { background-color: var(--color-bg-secondary); }
.bg-tertiary { background-color: var(--color-bg-tertiary); }
.bg-accent { background-color: var(--color-accent); }
.text-ink { color: var(--color-ink-primary); }
.text-soft { color: var(--color-ink-soft); }
.text-accent { color: var(--color-accent-dark); }
.border-token { border: 1px solid var(--color-border); }

/* -- Border radius utilities -- */
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-pill { border-radius: var(--radius-pill); }
.rounded-none { border-radius: 0; }

/* -- Shadow utilities -- */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-none { box-shadow: none; }

/* -- Display / position utilities -- */
.block { display: block; }
.inline-block { display: inline-block; }
.hidden { display: none; }
.relative { position: relative; }
.absolute { position: absolute; }
.sticky { position: sticky; }
.static { position: static; }
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

/* -- Width / height utilities -- */
.w-full { width: 100%; }
.w-auto { width: auto; }
.h-full { height: 100%; }
.h-auto { height: auto; }
.max-w-sm { max-width: 24rem; }
.max-w-md { max-width: 32rem; }
.max-w-lg { max-width: 48rem; }
.max-w-xl { max-width: 64rem; }

/* -- Z-index scale -- */
.z-0 { z-index: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }

/* ==========================================================================
   22. COMPONENT VARIANTS
   Secondary and outline treatments for buttons and cards used sparingly
   on supporting pages to keep hierarchy readable.
   ========================================================================== */
.button-outline {
  display: inline-block;
  background-color: transparent;
  color: var(--color-ink-primary);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-pill);
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  text-align: center;
  border: 1px solid var(--color-border-strong);
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.button-outline:hover,
.button-outline:focus-visible {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-accent);
  text-decoration: none;
}

.button-sm {
  padding: var(--space-2) var(--space-4);
  font-size: 0.85rem;
}

.button-lg {
  padding: var(--space-5) var(--space-7);
  font-size: 1.1rem;
}

.card-outline {
  background-color: transparent;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}

.card-elevated {
  background-color: var(--color-bg-primary);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-pill);
  padding: var(--space-2) var(--space-4);
  font-size: 0.8rem;
  color: var(--color-ink-muted);
}

.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-6) 0;
}

/* ==========================================================================
   23. FOCUS & INTERACTION STATES
   Consistent focus, hover, and active states so keyboard and pointer
   navigation feel identical across every interactive element.
   ========================================================================== */
.nav nav a {
  position: relative;
  transition: color var(--transition-fast);
}

.nav nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-base);
}

.nav nav a:hover::after,
.nav nav a:focus-visible::after {
  width: 100%;
}

.review-card,
.card,
.card-outline,
.card-elevated {
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.review-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.thumbs img:active {
  transform: scale(0.97);
}

.button:active,
.button-outline:active {
  transform: translateY(0);
}

/* ==========================================================================
   24. SECTION RHYTHM HELPERS
   Vertical rhythm tokens so every section on every page shares the same
   breathing room regardless of the content it wraps.
   ========================================================================== */
.section-tight { padding: var(--space-6) 0; }
.section-normal { padding: var(--space-8) 0; }
.section-loose { padding: var(--space-9) 0; }

.stack-1 > * + * { margin-top: var(--space-1); }
.stack-2 > * + * { margin-top: var(--space-2); }
.stack-3 > * + * { margin-top: var(--space-3); }
.stack-4 > * + * { margin-top: var(--space-4); }
.stack-5 > * + * { margin-top: var(--space-5); }
.stack-6 > * + * { margin-top: var(--space-6); }

/* ==========================================================================
   25. ANIMATIONS
   A single, purposeful entrance sequence used on first paint of the hero
   section; respects prefers-reduced-motion via section 19 above.
   ========================================================================== */
@keyframes krentov-fade-up {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-copy > * {
  animation: krentov-fade-up 0.5s ease both;
}

.hero-copy .badge { animation-delay: 0s; }
.hero-copy h1 { animation-delay: 0.05s; }
.hero-copy .lead { animation-delay: 0.1s; }
.hero-copy .micro-fact { animation-delay: 0.15s; }
.hero-copy .checklist { animation-delay: 0.2s; }
.hero-copy .button-block { animation-delay: 0.25s; }
.hero-copy .micro { animation-delay: 0.3s; }

@keyframes krentov-scale-in {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.hero-media img#main-product-img {
  animation: krentov-scale-in 0.5s ease both;
}

/* ==========================================================================
   26. LARGE SCREEN REFINEMENTS
   ========================================================================== */
@media (min-width: 1280px) {
  .container {
    width: min(1200px, calc(100% - 3rem));
  }

  .hero-media img#main-product-img {
    height: 540px;
  }

  .facts img,
  .cta-final img {
    height: 380px;
  }
}

/* ==========================================================================
   27. HIGH CONTRAST / FORCED COLORS SUPPORT
   ========================================================================== */
@media (forced-colors: active) {
  .button,
  .button-outline {
    border: 1px solid ButtonText;
  }

  .checklist li::before {
    color: ButtonText;
  }
}

/* ==========================================================================
   28. SELECTION STYLE
   ========================================================================== */
::selection {
  background-color: var(--color-accent-soft);
  color: var(--color-ink-primary);
}