/* ==========================================================================
   SOITOP — BOTANICAL APOTHECARY & PHYTOTHERAPY LAB
   Artisanal luxury styling for Digluco dietary supplement.
   High-performance, semantic CSS written with 10+ years engineering craft.
   ========================================================================== */

/* 1. Design Tokens & CSS Variables */
:root {
  /* Brand Palettes: Emerald, Gold, Amber & Warm Parchment */
  --color-forest: #07251d;
  --color-forest-dark: #03140f;
  --color-forest-light: #0d382c;
  --color-forest-surface: #0a2d23;

  --color-emerald: #0b4536;
  --color-emerald-light: #e8f2ec;
  --color-emerald-accent: #10b981;

  --color-gold: #c59b27;
  --color-gold-light: #fbf5e6;
  --color-gold-metallic: linear-gradient(135deg, #dfb755 0%, #c59b27 50%, #9e7816 100%);
  --color-gold-glow: rgba(197, 155, 39, 0.28);

  --color-amber: #92400e;
  --color-amber-light: #fef3c7;

  /* Surfaces & Neutrals */
  --color-bg: #faf7f2;
  --color-surface: #ffffff;
  --color-surface-warm: #f4ede2;
  --color-surface-dark: #07251d;

  --color-text: #18231e;
  --color-text-muted: #526359;
  --color-text-light: #76877d;
  --color-text-inverse: #fdfaf5;

  --color-border: #e3dccd;
  --color-border-subtle: #eee8dc;
  --color-border-gold: #d6b86d;

  --color-error: #b91c1c;
  --color-error-bg: #fef2f2;

  /* Typography */
  --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.25rem;
  --space-2xl: 3.5rem;
  --space-3xl: 5rem;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 840px;
  --header-height: 80px;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(7, 37, 29, 0.05);
  --shadow-md: 0 8px 24px rgba(7, 37, 29, 0.08);
  --shadow-lg: 0 16px 40px rgba(7, 37, 29, 0.12);
  --shadow-gold: 0 8px 25px rgba(197, 155, 39, 0.25);

  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 2. Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, .font-serif {
  font-family: var(--font-serif);
  color: var(--color-forest);
  letter-spacing: -0.015em;
  font-weight: 700;
}

h1 { font-size: clamp(2.3rem, 4.4vw, 3.6rem); line-height: 1.1; }
h2 { font-size: clamp(1.9rem, 3.2vw, 2.75rem); line-height: 1.2; }
h3 { font-size: 1.35rem; line-height: 1.25; }

p {
  color: var(--color-text-muted);
}

a {
  color: var(--color-emerald);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

/* 3. Containers & Layout */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

.container-narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-3xl);
  position: relative;
}

.section--warm {
  background-color: var(--color-surface-warm);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section--forest {
  background: var(--color-forest);
  color: var(--color-text-inverse);
  position: relative;
  overflow: hidden;
}

.section--forest h2, .section--forest h3 {
  color: #ffffff;
}

.section--forest p {
  color: #cbd7d1;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-2xl);
}

.eyebrow-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-gold-light);
  border: 1px solid var(--color-border-gold);
  color: var(--color-amber);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-sm);
}

.eyebrow-badge--forest {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(212, 175, 55, 0.4);
  color: #fce79f;
}

/* 4. Top Announcement Bar */
.top-bar {
  background: var(--color-forest-dark);
  color: #e2ece7;
  font-size: 0.8125rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

.top-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.top-bar__link {
  color: #dfb755;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.top-bar__link:hover {
  color: #ffffff;
}

/* 5. Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 247, 242, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-emblem {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-emblem__seal {
  width: 42px;
  height: 42px;
  background: var(--color-gold-metallic);
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--color-forest-dark);
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 900;
  box-shadow: 0 4px 12px var(--color-gold-glow);
  border: 1.5px solid #ffffff;
}

.brand-emblem__text {
  display: flex;
  flex-direction: column;
}

.brand-emblem__name {
  font-family: var(--font-serif);
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-forest);
  line-height: 1;
}

.brand-emblem__sub {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-gold);
  margin-top: 2px;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-forest);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover, .nav-link.is-active {
  color: var(--color-gold);
  background: var(--color-surface-warm);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--color-forest);
}

/* 6. Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 700;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  letter-spacing: 0.02em;
}

.btn-gold {
  background: var(--color-gold-metallic);
  color: var(--color-forest-dark);
  box-shadow: 0 4px 15px var(--color-gold-glow);
  font-weight: 800;
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(197, 155, 39, 0.4);
  color: var(--color-forest-dark);
}

.btn-outline-forest {
  background: transparent;
  border-color: var(--color-forest);
  color: var(--color-forest);
}

.btn-outline-forest:hover {
  background: var(--color-forest);
  color: #ffffff;
}

.btn-large {
  padding: 1.1rem 2.2rem;
  font-size: 1.0625rem;
}

/* 7. Editorial Hero Section */
.hero {
  padding: 3rem 0 4.5rem;
  background: 
    radial-gradient(circle at 90% 10%, rgba(197, 155, 39, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 10% 90%, rgba(11, 69, 54, 0.08) 0%, transparent 40%),
    linear-gradient(180deg, #faf7f2 0%, #f4ede2 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.target-audience-alert {
  background: #fdfaf3;
  border-left: 4px solid var(--color-gold);
  padding: 0.85rem 1.15rem;
  margin-bottom: 1.5rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  box-shadow: var(--shadow-sm);
}

.target-audience-alert p {
  font-size: 0.875rem;
  color: var(--color-forest);
  font-weight: 600;
  line-height: 1.5;
  margin: 0;
}

.hero-title {
  margin-bottom: 1rem;
}

.hero-title span {
  color: var(--color-gold);
}

.hero-subtitle {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin-bottom: 1.75rem;
}

/* Luxury Price Display */
.apothecary-price-box {
  display: inline-flex;
  align-items: center;
  gap: 1.25rem;
  background: #ffffff;
  border: 1px solid var(--color-border);
  padding: 0.9rem 1.4rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: 2rem;
}

.apothecary-price-box__old {
  font-size: 1.1rem;
  text-decoration: line-through;
  color: #8c9b93;
}

.apothecary-price-box__current {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
  font-family: var(--font-serif);
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--color-forest);
  line-height: 1;
}

.apothecary-price-box__currency {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-gold);
}

.apothecary-discount-tag {
  background: var(--color-forest);
  color: #fbe69b;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

.hero-badges-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
  margin-bottom: 2rem;
}

.hero-badge-pill {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-forest);
}

.hero-badge-pill svg {
  width: 18px;
  height: 18px;
  color: var(--color-gold);
  flex-shrink: 0;
}

/* Hero Media: Digluco Amber Bottle Frame */
.hero-media {
  position: relative;
  display: flex;
  justify-content: center;
}

.bottle-frame {
  position: relative;
  max-width: 440px;
  width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 2px solid rgba(212, 175, 55, 0.4);
}

.bottle-frame img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-normal);
}

.bottle-frame:hover img {
  transform: scale(1.02);
}

.bottle-floating-seal {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  background: rgba(7, 37, 29, 0.88);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(212, 175, 55, 0.4);
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-md);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.bottle-floating-seal__title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #fbe69b;
}

.bottle-floating-seal__desc {
  font-size: 0.75rem;
  color: #cbd7d1;
}

/* 8. Three-Phase Mechanism Section */
.mechanism-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.mechanism-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: all var(--transition-normal);
}

.mechanism-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-gold);
  box-shadow: var(--shadow-md);
}

.mechanism-phase-tag {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  margin-bottom: 0.5rem;
}

.mechanism-title {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.mechanism-desc {
  font-size: 0.9375rem;
  line-height: 1.65;
}

/* 9. Comparison Matrix */
.comparison-table-wrapper {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin: 2rem 0;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th, .comparison-table td {
  padding: 1.15rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.comparison-table th {
  background: var(--color-surface-warm);
  font-size: 0.9375rem;
  font-weight: 800;
  color: var(--color-forest);
}

.comparison-table th:last-child {
  background: var(--color-forest);
  color: #fbe69b;
}

.comparison-table td:last-child {
  background: rgba(11, 69, 54, 0.03);
  font-weight: 700;
  color: var(--color-forest);
}

/* 10. LUXURY ORDER FORM (Strictly compliant with track.js) */
.order-checkout-card {
  background: #ffffff;
  border: 1px solid var(--color-border-gold);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.order-checkout-header {
  background: linear-gradient(135deg, #07251d 0%, #0d382c 100%);
  color: #ffffff;
  padding: 2rem;
  text-align: center;
  border-bottom: 2px solid var(--color-gold);
}

.order-checkout-header h3 {
  color: #ffffff;
  font-size: 1.75rem;
  margin-bottom: 0.35rem;
}

.order-checkout-header p {
  color: #cbd7d1;
  font-size: 0.9375rem;
}

.order-checkout-body {
  padding: 2.25rem;
}

/* Bundle Selector */
.bundle-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.bundle-option {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
  cursor: pointer;
  background: var(--color-bg);
  transition: all var(--transition-fast);
  position: relative;
}

.bundle-option.is-selected, .bundle-option:hover {
  border-color: var(--color-gold);
  background: #ffffff;
  box-shadow: 0 4px 14px var(--color-gold-glow);
}

.bundle-badge {
  position: absolute;
  top: -9px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-gold);
  color: var(--color-forest-dark);
  font-size: 0.65rem;
  font-weight: 900;
  text-transform: uppercase;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
}

.bundle-qty {
  font-weight: 800;
  font-size: 0.9375rem;
  color: var(--color-forest);
  margin-bottom: 0.25rem;
}

.bundle-price {
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--color-emerald);
}

.bundle-sub {
  font-size: 0.75rem;
  color: var(--color-text-light);
}

/* STRICT track.js FORM RULES */
.soitop-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  text-align: left;
}

.form-label {
  font-size: 0.8125rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-forest);
  display: flex;
  justify-content: space-between;
}

.form-label .required {
  color: var(--color-error);
}

.input-container {
  position: relative;
  display: flex;
  align-items: center;
}

.input-container svg {
  position: absolute;
  left: 1rem;
  width: 20px;
  height: 20px;
  color: #8c9b93;
  pointer-events: none;
}

.form-input {
  width: 100%;
  height: 52px;
  padding: 0.75rem 1rem 0.75rem 3rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-forest);
  background: #ffffff;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: all var(--transition-fast);
}

.form-input:focus {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 4px var(--color-gold-glow);
}

.form-input.is-invalid {
  border-color: var(--color-error);
  background: var(--color-error-bg);
}

.form-input.is-valid {
  border-color: var(--color-emerald);
}

.field-error {
  display: none;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-error);
  margin-top: 0.25rem;
}

.field-error.show {
  display: block;
}

.form-submit-btn {
  width: 100%;
  padding: 1.25rem 1.5rem;
  background: var(--color-gold-metallic);
  color: var(--color-forest-dark);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  box-shadow: var(--shadow-gold);
  transition: all var(--transition-fast);
  margin-top: 0.5rem;
}

.form-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(197, 155, 39, 0.45);
}

.form-submit-btn__title {
  font-size: 1.15rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-submit-btn__sub {
  font-size: 0.8125rem;
  font-weight: 600;
  opacity: 0.9;
}

.form-trust-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.form-trust-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-muted);
}

.form-trust-item svg {
  width: 22px;
  height: 22px;
  color: var(--color-gold);
}

/* 11. FAQ Component */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-card[open] {
  border-color: var(--color-gold);
}

.faq-sum {
  padding: 1.35rem 1.6rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-forest);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.faq-sum::-webkit-details-marker {
  display: none;
}

.faq-sum svg {
  width: 20px;
  height: 20px;
  color: var(--color-gold);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

.faq-card[open] .faq-sum svg {
  transform: rotate(180deg);
}

.faq-body {
  padding: 0 1.6rem 1.35rem;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border-subtle);
  padding-top: 1rem;
}

/* 12. Disclaimer Banner */
.disclaimer-strip {
  background: var(--color-surface-warm);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 2rem 0;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.disclaimer-strip__inner {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}

.disclaimer-strip svg {
  width: 24px;
  height: 24px;
  color: var(--color-gold);
  flex-shrink: 0;
  margin-top: 3px;
}

/* 13. Luxury Dark Footer */
.site-footer {
  background: var(--color-forest-dark);
  color: #a3b8ad;
  padding: 4rem 0 2rem;
  font-size: 0.875rem;
  line-height: 1.65;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-col-title {
  color: #fbe69b;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: #cbd7d1;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #dfb755;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8125rem;
  color: #728a7e;
}

/* 14. Responsive Rules */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2.5rem;
  }
  .target-audience-alert {
    text-align: left;
  }
  .hero-badges-grid {
    max-width: 480px;
    margin: 0 auto 2rem;
  }
  .mechanism-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links, .site-header .btn {
    display: none;
  }
  .nav-toggle {
    display: block;
  }
  .site-nav.is-open {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: #faf7f2;
    flex-direction: column;
    padding: 2rem;
    z-index: 99;
  }
  .site-nav.is-open .nav-links {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: 1rem;
  }
  .bundle-selector {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}