/* ===================================================================
   THE DIGNIFIED RETIREMENT BLUEPRINT · SENIOR-ACCESSIBLE SALES STYLESHEET
   Engineered for American Retirees (Ages 55–75)
   - 100% Flawless Mobile & Desktop Responsiveness (Zero Horizontal Overflow)
   - High Contrast (Exceeds WCAG AAA Standards)
   - Large, Crisp Typography (No Faint or Grainy Overlays)
   - Warm Antique Paper Palette with Heritage Oxblood & Gold
   =================================================================== */

:root {
  /* Warm Ivory Paper Palette */
  --paper-bg:         #FAF7F2;
  --paper-card:       #FFFFFF;
  --paper-muted:      #F3ECE0;
  --paper-border:     #DDD2C0;
  --paper-border-dark:#C2B59F;

  /* High-Contrast Crisp Ink (WCAG AAA Compliance: >12:1 against light bg) */
  --ink-primary:      #1A1612;
  --ink-secondary:    #38322B;
  --ink-muted:        #5C5346;

  /* Urgency & Brand Accents */
  --oxblood:          #8B1D0D;
  --oxblood-hover:    #6D1408;
  --oxblood-soft:     #FDF2F0;
  --gold:             #9A6715;
  --gold-soft:        #FEF7E8;
  --navy:             #0D1B2A;

  /* Typography */
  --font-serif:       'Lora', Georgia, 'Times New Roman', serif;
  --font-sans:        'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono:        'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Layout */
  --max-width:        1140px;
  --max-width-narrow: 780px;
}

/* ===================================================================
   RESET & FOUNDATIONS
   =================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 18px;
  scroll-behavior: smooth;
  background-color: var(--paper-bg);
  color: var(--ink-primary);
  line-height: 1.65;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  overflow-x: hidden;
  width: 100%;
  max-width: 100%;
  background-color: var(--paper-bg);
  color: var(--ink-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Containers */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.container-narrow {
  width: 100%;
  max-width: var(--max-width-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* Typography Base */
h1, h2, h3, h4, h5 {
  font-family: var(--font-serif);
  font-weight: 700;
  color: var(--ink-primary);
  line-height: 1.2;
  letter-spacing: -0.015em;
}

h1 {
  font-size: clamp(2rem, 4.4vw, 3.2rem);
  line-height: 1.15;
  margin-bottom: 20px;
}

h2 {
  font-size: clamp(1.65rem, 3.2vw, 2.35rem);
  line-height: 1.22;
  margin-bottom: 16px;
}

h3 {
  font-size: 1.35rem;
  line-height: 1.3;
}

h4 {
  font-size: 1.2rem;
  line-height: 1.35;
}

p {
  font-size: 1.05rem;
  color: var(--ink-secondary);
  line-height: 1.68;
  margin-bottom: 1.2em;
}

strong, b {
  font-weight: 700;
  color: var(--ink-primary);
}

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

a {
  color: var(--oxblood);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color 0.15s ease;
}

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

/* ===================================================================
   TOP MASTHEAD (Urgency Countdown Bar)
   =================================================================== */
.masthead {
  background-color: var(--ink-primary);
  color: #FFFFFF;
  position: sticky;
  top: 0;
  z-index: 999;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  width: 100%;
}

.masthead__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  max-width: var(--max-width);
  margin: 0 auto;
  gap: 12px;
}

.masthead__left,
.masthead__right {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #E2D9CC;
  font-weight: 500;
  white-space: nowrap;
}

.masthead__center {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.masthead__tag {
  background-color: var(--oxblood);
  color: #FFFFFF;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.masthead__text {
  font-size: 0.9rem;
  color: #F5EFEB;
  font-weight: 500;
}

.masthead__timer {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  background-color: #2D2721;
  color: #FFDE99;
  padding: 3px 10px;
  border-radius: 4px;
  border: 1px solid rgba(255, 222, 153, 0.3);
  letter-spacing: 0.06em;
}

/* ===================================================================
   BUTTONS (Senior Touch-Target Standard: >=52px height)
   =================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 16px 30px;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s ease;
  line-height: 1.2;
}

.btn--ox {
  background-color: var(--oxblood);
  color: #FFFFFF;
  border-color: var(--oxblood);
  box-shadow: 0 4px 14px rgba(139, 29, 13, 0.25);
}

.btn--ox:hover {
  background-color: var(--oxblood-hover);
  border-color: var(--oxblood-hover);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(139, 29, 13, 0.35);
}

.btn--ghost {
  background-color: transparent;
  color: var(--ink-primary);
  border-color: var(--paper-border-dark);
}

.btn--ghost:hover {
  background-color: var(--paper-muted);
  border-color: var(--ink-primary);
  color: var(--ink-primary);
}

.btn--block {
  display: flex;
  width: 100%;
}

.btn--lg {
  font-size: 1.08rem;
  padding: 18px 36px;
}

/* ===================================================================
   HERO SECTION
   =================================================================== */
.hero {
  padding: 56px 0 48px;
  border-bottom: 1px solid var(--paper-border);
  background: linear-gradient(180deg, #FAF7F2 0%, #F5EFE6 100%);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 52px;
  align-items: center;
}

.hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--oxblood-soft);
  color: var(--oxblood);
  border: 1px solid rgba(139, 29, 13, 0.2);
  padding: 6px 14px;
  border-radius: 30px;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.hero__headline em {
  font-style: italic;
  color: var(--oxblood);
}

/* High-Legibility Editorial Intro Callout (No Broken Drop-Caps) */
.hero__callout {
  background-color: #FFFFFF;
  border-left: 4px solid var(--oxblood);
  border-top: 1px solid var(--paper-border);
  border-right: 1px solid var(--paper-border);
  border-bottom: 1px solid var(--paper-border);
  padding: 20px 24px;
  margin: 22px 0 24px;
  border-radius: 0 6px 6px 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.hero__callout p {
  font-family: var(--font-serif);
  font-size: 1.18rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink-primary);
  margin-bottom: 0;
}

.hero__sub {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--ink-secondary);
  margin-bottom: 32px;
}

.hero__cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 40px;
}

/* 3-Column Stats Bar */
.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  border-top: 2px solid var(--paper-border);
  padding-top: 24px;
}

.hero__stat-item {
  border-left: 3px solid var(--gold);
  padding-left: 14px;
}

.hero__stat-num {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--ink-primary);
  margin-bottom: 4px;
}

.hero__stat-num em {
  color: var(--oxblood);
  font-style: normal;
}

.hero__stat-lab {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-muted);
  line-height: 1.35;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* Hero Media (3D Book Presentation) */
.hero__media {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.book-card {
  background-color: #FFFFFF;
  border: 1px solid var(--paper-border-dark);
  padding: 16px;
  border-radius: 8px;
  box-shadow: 0 16px 36px rgba(26, 22, 18, 0.15);
  max-width: 440px;
  width: 100%;
}

.book-card img {
  border-radius: 4px;
  width: 100%;
  height: auto;
}

.book-badge-note {
  margin-top: 14px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-muted);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ===================================================================
   SECTION COMMONS
   =================================================================== */
.sec {
  padding: 72px 0;
  border-bottom: 1px solid var(--paper-border);
}

.sec__header {
  margin-bottom: 40px;
}

.sec__header--center {
  text-align: center;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--oxblood);
  margin-bottom: 10px;
}

.sec__lede {
  font-size: 1.15rem;
  color: var(--ink-secondary);
  line-height: 1.65;
  max-width: 720px;
}

.sec__header--center .sec__lede {
  margin-left: auto;
  margin-right: auto;
}

/* ===================================================================
   THE MATH SECTION (Side-by-Side Comparison)
   =================================================================== */
.sec-math {
  background-color: var(--paper-muted);
}

.math__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.math__col {
  background-color: #FFFFFF;
  border-radius: 8px;
  border: 2px solid var(--paper-border);
  padding: 32px 28px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
  display: flex;
  flex-direction: column;
}

.math__col--bad {
  border-top: 5px solid var(--oxblood);
}

.math__col--good {
  border-top: 5px solid var(--gold);
}

.math__col-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--paper-border);
  margin-bottom: 20px;
  gap: 16px;
}

.math__pill {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 6px;
}

.math__pill--us {
  background-color: #FEE2E2;
  color: #991B1B;
}

.math__pill--ph {
  background-color: #FEF3C7;
  color: #92400E;
}

.math__period-badge {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.math__list {
  list-style: none;
  flex-grow: 1;
}

.math__list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px dashed var(--paper-border);
  font-size: 1rem;
  color: var(--ink-secondary);
  gap: 16px;
}

.math__list li .item-name {
  font-weight: 500;
}

.math__list li .item-val {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink-primary);
  white-space: nowrap;
}

.math__total-box {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 2px solid var(--ink-primary);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}

.math__total-label {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-muted);
}

.math__total-amount {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
}

.math__col--bad .math__total-amount {
  color: var(--oxblood);
}

.math__col--good .math__total-amount {
  color: #065F46;
}

.math__footnote {
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--ink-muted);
  line-height: 1.45;
}

.math__delta-banner {
  background-color: #FFFFFF;
  border-left: 6px solid var(--oxblood);
  border-top: 1px solid var(--paper-border);
  border-right: 1px solid var(--paper-border);
  border-bottom: 1px solid var(--paper-border);
  border-radius: 0 8px 8px 0;
  padding: 24px 28px;
  font-size: 1.12rem;
  line-height: 1.6;
  color: var(--ink-primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

.math__delta-banner strong {
  color: var(--oxblood);
}

/* ===================================================================
   FIELD TRUTHS (The 3 Hard Rules)
   =================================================================== */
.rules__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.rule-box {
  background-color: #FFFFFF;
  border: 1px solid var(--paper-border);
  border-radius: 8px;
  padding: 30px 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.rule-box__num {
  display: inline-block;
  background-color: var(--oxblood-soft);
  color: var(--oxblood);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.rule-box h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--ink-primary);
}

.rule-box p {
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--ink-secondary);
  margin-bottom: 0;
}

/* ===================================================================
   CURRICULUM (Inside the Blueprint)
   =================================================================== */
.inside__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.inside__card {
  background-color: #FFFFFF;
  border: 1px solid var(--paper-border);
  border-radius: 8px;
  padding: 28px 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.inside__badge {
  display: inline-block;
  background-color: var(--paper-muted);
  color: var(--ink-primary);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.inside__card h4 {
  font-size: 1.22rem;
  margin-bottom: 10px;
}

.inside__card p {
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--ink-secondary);
  margin-bottom: 0;
}

.inside__card--bonus {
  grid-column: 1 / -1;
  background-color: #FFFDF9;
  border: 2px solid var(--gold);
}

.inside__card--bonus .inside__badge {
  background-color: #FEF3C7;
  color: #92400E;
}

/* ===================================================================
   REVIEWS (Senior Field Dispatches)
   =================================================================== */
.sec-reviews {
  background-color: var(--paper-muted);
}

.reviews__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background-color: #FFFFFF;
  border: 1px solid var(--paper-border);
  border-radius: 8px;
  padding: 32px 24px 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
  display: flex;
  flex-direction: column;
}

.review-card__stars {
  color: #D97706;
  font-size: 1.1rem;
  letter-spacing: 2px;
  margin-bottom: 14px;
}

.review-card__body {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--ink-primary);
  font-style: italic;
  margin-bottom: 20px;
  flex-grow: 1;
}

.review-card__by {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--ink-muted);
  border-top: 1px solid var(--paper-border);
  padding-top: 14px;
}

/* ===================================================================
   ORDER SECTION (Single Clear Buy Box)
   =================================================================== */
.sec-order {
  background-color: #FFFFFF;
}

.order-box {
  background-color: #FAF7F2;
  border: 3px solid var(--ink-primary);
  border-radius: 12px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
  padding: 48px 36px;
}

.order-box__header {
  text-align: center;
  padding-bottom: 28px;
  border-bottom: 2px solid var(--paper-border);
  margin-bottom: 32px;
}

.order-box__kicker {
  display: inline-block;
  background-color: var(--oxblood);
  color: #FFFFFF;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 14px;
}

.order-box__title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  margin-bottom: 8px;
}

.order-box__subtitle {
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink-muted);
}

/* Buy Box Timer Pill */
.order-timer-wrap {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: #FFFFFF;
  border: 2px solid var(--paper-border-dark);
  border-radius: 30px;
  padding: 8px 18px;
  margin: 20px auto 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.order-timer-label {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--ink-primary);
}

.order-timer-val {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--oxblood);
}

/* Price Display */
.order-price-display {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 16px;
  margin: 28px 0 12px;
  flex-wrap: wrap;
}

.order-price-old {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--ink-muted);
  text-decoration: line-through;
}

.order-price-now {
  font-family: var(--font-serif);
  font-size: 4.2rem;
  font-weight: 700;
  color: var(--ink-primary);
  line-height: 0.9;
}

.order-price-badge {
  background-color: #065F46;
  color: #FFFFFF;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 6px 12px;
  border-radius: 4px;
}

/* Order Checklist */
.order-checklist {
  list-style: none;
  margin: 32px 0;
  padding: 0;
}

.order-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--paper-border);
  font-size: 1.05rem;
  color: var(--ink-secondary);
  line-height: 1.55;
}

.order-checklist li:last-child {
  border-bottom: none;
}

.order-checklist .chk-icon {
  color: #065F46;
  font-size: 1.3rem;
  line-height: 1;
  font-weight: 700;
  flex-shrink: 0;
}

.order-cta-area {
  margin-top: 36px;
  text-align: center;
}

.order-subnote {
  margin-top: 14px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink-muted);
}

/* Guarantee Box */
.order-guarantee {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 2px solid var(--paper-border);
  display: flex;
  gap: 20px;
  align-items: flex-start;
  text-align: left;
}

.order-guarantee__icon {
  font-size: 2.4rem;
  line-height: 1;
  flex-shrink: 0;
}

.order-guarantee h5 {
  font-size: 1.15rem;
  margin-bottom: 6px;
  color: var(--ink-primary);
}

.order-guarantee p {
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--ink-muted);
  margin-bottom: 0;
}

/* ===================================================================
   FREQUENTLY ASKED QUESTIONS (Accordion)
   =================================================================== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background-color: #FFFFFF;
  border: 1px solid var(--paper-border);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item[open] {
  border-color: var(--ink-primary);
}

.faq-question {
  padding: 22px 24px;
  font-family: var(--font-serif);
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--ink-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  user-select: none;
}

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

.faq-toggle-icon {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--oxblood);
  font-weight: 700;
  line-height: 1;
}

.faq-item[open] .faq-toggle-icon::before {
  content: "−";
}

.faq-item:not([open]) .faq-toggle-icon::before {
  content: "+";
}

.faq-answer {
  padding: 0 24px 24px;
  font-size: 1.02rem;
  line-height: 1.68;
  color: var(--ink-secondary);
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

/* ===================================================================
   FOOTER
   =================================================================== */
.footer {
  background-color: var(--ink-primary);
  color: #FFFFFF;
  padding: 48px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.footer-copy {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  color: #E2D9CC;
  margin-bottom: 12px;
}

.footer-disclaimer {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.65);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ===================================================================
   RESPONSIVE DESIGN & MOBILE OPTIMIZATIONS
   =================================================================== */

/* Tablet & Smaller Desktops */
@media (max-width: 980px) {
  .hero__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  /* On mobile/tablet, headline is FIRST, book follows */
  .hero__copy {
    order: 1;
  }

  .hero__media {
    order: 2;
    margin-top: 10px;
  }

  .book-card {
    max-width: 320px;
  }

  .math__grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .rules__grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .inside__grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .reviews__grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .masthead__left,
  .masthead__right {
    display: none;
  }

  .masthead__inner {
    justify-content: center;
  }
}

/* Mobile Screens (<= 640px) */
@media (max-width: 640px) {
  html {
    font-size: 17px;
  }

  .container,
  .container-narrow {
    padding-left: 16px;
    padding-right: 16px;
  }

  .masthead__inner {
    padding: 8px 12px;
  }

  .masthead__center {
    gap: 6px;
  }

  .masthead__tag {
    font-size: 0.72rem;
    padding: 2px 8px;
  }

  .masthead__timer {
    font-size: 0.85rem;
    padding: 2px 8px;
  }

  .hero {
    padding: 36px 0 32px;
  }

  .hero__headline {
    font-size: 1.85rem;
  }

  .hero__callout {
    padding: 16px 18px;
  }

  .hero__callout p {
    font-size: 1.08rem;
  }

  .hero__sub {
    font-size: 1.02rem;
  }

  .hero__cta-group {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .btn {
    width: 100%;
    min-height: 52px;
    padding: 16px 20px;
  }

  .hero__stats {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .hero__stat-item {
    border-left: 4px solid var(--gold);
    padding-left: 12px;
  }

  .math__col {
    padding: 24px 18px;
  }

  .math__col-header {
    flex-direction: column;
    gap: 8px;
  }

  .math__list li {
    font-size: 0.95rem;
  }

  .order-box {
    padding: 28px 16px;
  }

  .order-price-now {
    font-size: 3.4rem;
  }

  .order-guarantee {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .faq-question {
    padding: 18px 16px;
    font-size: 1.08rem;
  }

  .faq-answer {
    padding: 0 16px 20px;
    font-size: 0.98rem;
  }
}