/* ==========================================================================
   MyoGlow Design System & Stylesheet
   Archetype: Luminous Rose-Quartz & Champagne Cosmetic Editorial Interface
   ========================================================================== */

:root {
  --color-primary-dark: #2c1d27;
  --color-accent-rose: #d49a9c;
  --color-accent-champagne: #e8d5c4;
  --color-bg-light: #faf6f4;
  --color-card-surface: #ffffff;
  --color-text-dark: #23181f;
  --color-text-muted: #6e5d66;
  --color-cta: #7a2e43;
  --color-cta-hover: #5d2232;
  --color-border: #ebdcd5;
  --color-warning-bg: #fff5f5;
  --color-warning-border: #e53e3e;
  --color-warning-text: #742a2a;
  
  --font-heading: Georgia, 'Times New Roman', Times, serif;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  
  --container-max-width: 1160px;
  --prose-max-width: 820px;
  --radius-container: 14px;
  --radius-button: 8px;
  --radius-badge: 50px;
  
  --shadow-subtle: 0 4px 20px rgba(44, 29, 39, 0.04);
  --shadow-hover: 0 8px 30px rgba(44, 29, 39, 0.08);
  --transition-default: all 0.3s ease;
}

/* Reset & Core Setup */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text-dark);
  background-color: var(--color-bg-light);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-cta);
  text-decoration: none;
  transition: var(--transition-default);
}

a:hover {
  color: var(--color-cta-hover);
}

/* Accessibility & Focus Styles */
:focus-visible {
  outline: 3px solid var(--color-accent-rose);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-to-content {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--color-primary-dark);
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  z-index: 9999;
  border-radius: var(--radius-button);
  transition: top 0.2s ease;
}

.skip-to-content:focus {
  top: 1rem;
}

/* Typography System */
h1, h2, h3, h4, .brand-title {
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
  font-weight: 600;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.25rem, 4vw + 1rem, 3.5rem);
  letter-spacing: -0.01em;
  margin-bottom: 1.25rem;
}

h2 {
  font-size: clamp(1.85rem, 3vw + 0.5rem, 2.65rem);
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
  text-align: center;
}

h3 {
  font-size: clamp(1.35rem, 2vw + 0.25rem, 1.75rem);
  margin-bottom: 0.75rem;
}

h4 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1.25rem;
  color: var(--color-text-dark);
}

p.lead {
  font-size: 1.2rem;
  line-height: 1.7;
  color: var(--color-text-muted);
}

.subheading-text {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-cta);
  background: rgba(212, 154, 156, 0.15);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-badge);
  margin-bottom: 0.85rem;

}

.merchant-label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  padding: 0.25rem 0.65rem;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.prose-container {
  max-width: var(--prose-max-width);
  margin: 0 auto;
}

section {
  padding: 4.5rem 0;
  position: relative;
}

section.bg-alt {
  background-color: #ffffff;
}

section.bg-tint {
  background-color: var(--color-bg-light);
}

.divider-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent-champagne), transparent);
  margin: 0 auto;
  max-width: 600px;
}

/* Button & CTA Components */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  background-color: var(--color-cta);
  color: #ffffff !important;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 1rem 2rem;
  border-radius: var(--radius-button);
  border: 1px solid var(--color-cta);
  box-shadow: 0 4px 14px rgba(122, 46, 67, 0.25);
  cursor: pointer;
  transition: var(--transition-default);
  text-align: center;
}

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--color-cta-hover);
  border-color: var(--color-cta-hover);
  box-shadow: 0 6px 20px rgba(122, 46, 67, 0.35);
  transform: translateY(-1px);
}

.btn-primary .btn-arrow {
  font-size: 1.1rem;
  transition: transform 0.2s ease;
}

.btn-primary:hover .btn-arrow {
  transform: translateX(4px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  color: var(--color-primary-dark);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius-button);
  border: 1px solid var(--color-border);
  transition: var(--transition-default);
}

.btn-secondary:hover {
  border-color: var(--color-accent-rose);
  background-color: #ffffff;
}

.cta-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: flex-start;
  margin-top: 1.5rem;
}

.cta-note {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(250, 246, 244, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  padding: 0.85rem 0;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  letter-spacing: 0.02em;
}

.brand-sub {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent-rose);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-dark);
}

.nav-link:hover {
  color: var(--color-cta);
}

.header-cta-btn {
  padding: 0.65rem 1.35rem;
  font-size: 0.85rem;
}

/* BINDING MOBILE RULE: Header CTA MUST BE HIDDEN ON MOBILE */
@media (max-width: 767px) {
  .header-cta-btn {
    display: none !important;
  }
  .site-nav {
    display: none; /* Hide full nav on mobile for clean focus */
  }
}

/* Hero Section */
.hero-section {
  padding: 2.5rem 0 4rem;
  background: linear-gradient(180deg, #ffffff 0%, var(--color-bg-light) 100%);
}

.hero-grid {
  display: block;
}

.hero-content {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.9fr);
  grid-template-areas:
    "tag visual"
    "merchant visual"
    "title visual"
    "intro visual"
    "cta visual"
    "proof visual"
    "support visual";
  column-gap: 3rem;
  row-gap: 0.85rem;
  align-items: start;
}

.hero-tag { grid-area: tag; justify-self: start; margin-bottom: 0; }
.hero-content > .merchant-label { grid-area: merchant; margin-bottom: 0; }
.hero-h1 { grid-area: title; margin-bottom: 0; font-size: clamp(3rem, 3.5vw, 3.35rem); line-height: 1.03; }
.hero-subheading { grid-area: intro; margin: 0; }
.hero-cta-group { grid-area: cta; margin-top: 0; }
.hero-editorial-body { grid-area: support; }

.hero-editorial-body p {
  margin: 0;
}

.hero-image-wrapper {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-container);
  padding: 2rem;
  box-shadow: var(--shadow-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-content > .hero-image-wrapper {
  grid-area: visual;
  align-self: stretch;
  min-height: 480px;
}

.hero-image-wrapper img {
  max-height: 480px;
  object-fit: contain;
}

.hero-trust-badges {
  grid-area: proof;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.25rem;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--color-border);
}

.trust-badge-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.trust-icon {
  color: var(--color-accent-rose);
  font-weight: bold;
}

/* BINDING MOBILE RULE FOR HERO:
   Desktop order: integrated 2-column composition.
   Mobile order: H1/intro -> EXACTLY ONE AUTHENTIC PRODUCT IMAGE -> PRIMARY CTA -> PROOF */
@media (max-width: 767px) {
  .hero-grid {
    display: flex;
    flex-direction: column;
  }
  
  .hero-content {
    display: contents;
  }
  
  .hero-h1 {
    order: 1;
    min-width: 0;
    max-width: 100%;
    font-size: 2.25rem;
    line-height: 1.06;
    overflow-wrap: anywhere;
    word-break: normal;
  }

  .hero-subheading {
    order: 2;
    margin: 0.5rem 0 0;
  }
  
  .hero-content > .hero-image-wrapper {
    order: 3;
    margin: 1rem 0;
    width: 100%;
    min-height: 0;
  }
  
  .hero-cta-group {
    order: 4;
    width: 100%;
  }
  
  .hero-cta-btn {
    width: 100%;
  }
  
  .hero-trust-badges {
    order: 5;
  }

  .hero-editorial-body {
    order: 6;
  }
}

/* Section Header Component */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3rem;
}

/* Section 2: Problem & Solution */
.editorial-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-container);
  padding: 2.5rem;
  box-shadow: var(--shadow-subtle);
}

.problem-solution-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

/* Section 3 & 4: Tech & Science Grid */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.tech-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-container);
  padding: 1.75rem;
  transition: var(--transition-default);
}

.tech-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-accent-rose);
}

.tech-icon-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent-rose);
  display: inline-block;
  margin-bottom: 1rem;
  box-shadow: 0 0 10px rgba(212, 154, 156, 0.5);
}

.led-spectrum-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.led-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-container);
  padding: 1.5rem;
  border-top: 4px solid var(--color-accent-rose);
}

.led-card.red-mode { border-top-color: #e53e3e; }
.led-card.blue-mode { border-top-color: #3182ce; }
.led-card.amber-mode { border-top-color: #d69e2e; }

/* Section 5: Step-by-Step Timeline */
.timeline-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.step-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-container);
  padding: 1.75rem;
  position: relative;
}

.step-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent-rose);
  line-height: 1;
  margin-bottom: 0.75rem;
}

/* Section 6 & 7: Serum Pairing & Inclusions */
.two-col-feature {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}

.two-col-feature > * {
  min-width: 0;
}

.feature-list {
  list-style: none;
  margin-top: 1.25rem;
}

.feature-list li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.85rem;
  color: var(--color-text-dark);
}

.feature-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-cta);
  font-weight: bold;
}

/* Section 8: Safety & Contraindications Banner */
.safety-warning-banner {
  background-color: var(--color-warning-bg);
  border: 1px solid var(--color-warning-border);
  border-radius: var(--radius-container);
  padding: 2.5rem;
  color: var(--color-warning-text);

}

.safety-warning-banner h3 {
  color: #9b2c2c;
  display: flex;
  align-items: center;
  gap: 0.5rem;

}

.contraindications-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 1.25rem;
}

.warning-box {
  background: #ffffff;
  border-left: 4px solid var(--color-warning-border);
  padding: 1.25rem;
  border-radius: 4px;
}

/* Section 9: Guarantee & Policy Panel */
.policy-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-container);
  padding: 2.5rem;
  box-shadow: var(--shadow-subtle);
}

.policy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 1.5rem;
}

.policy-item {
  border-top: 2px solid var(--color-accent-champagne);
  padding-top: 1.25rem;
}

/* Section 10: Interactive Accordion FAQs */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  overflow: hidden;
  transition: var(--transition-default);
}

.faq-item:hover {
  border-color: var(--color-accent-rose);
}

.faq-button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  text-align: left;
  cursor: pointer;
}

.faq-icon {
  font-size: 1.25rem;
  color: var(--color-cta);
  transition: transform 0.3s ease;
}

.faq-button[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-content {
  padding: 0 1.5rem 1.25rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.faq-content[hidden] {
  display: none;
}

/* Section 11: Verified Promotions & Offer Section (NO PACKAGE CARDS / NO PRICES) */
.commerce-section {
  background: linear-gradient(180deg, var(--color-bg-light) 0%, #ffffff 100%);
  padding: 5rem 0;
}

.verified-promotions-card {
  background: #ffffff;
  border: 2px solid var(--color-accent-champagne);
  border-radius: var(--radius-container);
  padding: 3rem;
  box-shadow: var(--shadow-hover);
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.promo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
  text-align: left;
}

.promo-box {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 1.5rem;
}

.promo-box-title {
  font-weight: 700;
  color: var(--color-cta);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.merchant-check-notice {
  background: #fff8f6;
  border: 1px dashed var(--color-accent-rose);
  padding: 1.25rem;
  border-radius: 8px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

/* Footer & Legal Disclosures */
.site-footer {
  background-color: var(--color-primary-dark);
  color: #e2d8df;
  padding: 4rem 0 2rem;
  font-size: 0.875rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  color: #ffffff;
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.65rem;
}

.footer-links a {
  color: #c9bdc5;
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-disclosure {
  border-top: 1px solid rgba(232, 213, 196, 0.2);
  padding-top: 2rem;
  color: #a89aa4;
  font-size: 0.8125rem;
  line-height: 1.6;
}

.footer-bottom {
  margin-top: 2rem;
  text-align: center;
  font-size: 0.8125rem;
  color: #8c7d88;
}

/* Media Queries for Responsiveness */
@media (max-width: 1023px) {
  .problem-solution-grid,
  .two-col-feature {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .led-spectrum-grid,
  .promo-grid,
  .contraindications-grid,
  .policy-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

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