/* ==========================================================================
   CrossFit Gym Marketing Funnel — Shared Stylesheet
   Mobile-first, responsive, light theme with gold accents
   Matches crossfitbodmin.com branding: Barlow font, #e2bd23 gold
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. CSS Custom Properties
   -------------------------------------------------------------------------- */
:root {
  /* Colors — Light theme matching crossfitbodmin.com */
  --color-bg:          #ffffff;
  --color-bg-raised:   #f7fafc;
  --color-bg-card:     #ffffff;
  --color-bg-input:    #f7fafc;
  --color-border:      #e2e8f0;
  --color-border-light:#cbd5e0;
  --color-text:        #1a1a2e;
  --color-text-muted:  #4a5568;
  --color-text-dim:    #718096;
  --color-accent:      #e2bd23;
  --color-accent-hover:#c9a81e;
  --color-accent-glow: rgba(226, 189, 35, 0.35);
  --color-success:     #6ba73b;
  --color-error:       #ef4444;
  --color-gold:        #e2bd23;

  /* Typography — Barlow from Google Fonts */
  --font-family: 'Barlow', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;

  /* Layout */
  --max-width: 800px;
  --gutter: 20px;

  /* Radii */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 0.2s var(--ease-out);
  --transition-med:  0.35s var(--ease-out);
}

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

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

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

/* Utility: centered content column */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* --------------------------------------------------------------------------
   2. Navigation / Header
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: 14px 0;
}

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

.site-header__name {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--color-text);
}

.site-header__name span {
  color: var(--color-accent);
}

.site-header__cta {
  font-size: 0.85rem;
  font-weight: 700;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background-color: var(--color-accent);
  color: #1a1a2e;
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.site-header__cta:hover {
  background-color: var(--color-accent-hover);
  color: #1a1a2e;
}

/* --------------------------------------------------------------------------
   3. Urgency Banner
   -------------------------------------------------------------------------- */
.urgency-banner {
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-hover));
  color: #1a1a2e;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 10px var(--gutter);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.urgency-banner strong {
  font-weight: 900;
}

/* --------------------------------------------------------------------------
   4. Hero Section
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  width: 100%;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px var(--gutter) 60px;
  background-color: var(--color-bg);
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

/* Gradient overlay */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.80) 0%,
    rgba(0, 0, 0, 0.60) 40%,
    rgba(0, 0, 0, 0.90) 100%
  );
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
}

.hero__tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: 16px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-full);
  padding: 5px 16px;
}

.hero__headline {
  font-size: clamp(2rem, 6vw, 3.4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero__headline em {
  font-style: normal;
  color: var(--color-accent);
}

.hero__sub {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--color-text-muted);
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: 32px;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   5. CTA Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-family);
  font-weight: 800;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  padding: 16px 36px;
  transition:
    background-color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.btn--primary {
  background-color: var(--color-accent);
  color: #1a1a2e;
  box-shadow: 0 4px 24px var(--color-accent-glow);
}

.btn--primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 32px var(--color-accent-glow);
  color: #1a1a2e;
}

.btn--primary:active {
  transform: translateY(0);
}

/* Pulse animation on primary hero CTA */
.btn--pulse {
  animation: pulse-glow 2.2s infinite;
}

@keyframes pulse-glow {
  0%   { box-shadow: 0 0 0 0 var(--color-accent-glow); }
  50%  { box-shadow: 0 0 0 14px rgba(226, 189, 35, 0); }
  100% { box-shadow: 0 0 0 0 rgba(226, 189, 35, 0); }
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-border-light);
}

.btn--secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

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

.btn--lg {
  padding: 18px 44px;
  font-size: 1.1rem;
}

/* --------------------------------------------------------------------------
   6. Countdown Timer
   -------------------------------------------------------------------------- */
.countdown {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-bottom: 32px;
}

.countdown__label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-right: 8px;
}

.countdown__group {
  display: flex;
  align-items: center;
  gap: 3px;
}

.countdown__digit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 48px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1.35rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: #1a1a2e;
}

.countdown__separator {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-accent);
  margin-inline: 2px;
}

.countdown__unit {
  display: block;
  text-align: center;
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-dim);
  margin-top: 4px;
}

@media (min-width: 480px) {
  .countdown__digit {
    width: 46px;
    height: 56px;
    font-size: 1.6rem;
  }
}

/* --------------------------------------------------------------------------
   7. Section Base & Dividers
   -------------------------------------------------------------------------- */
.section {
  padding: 60px 0;
}

.section--alt {
  background-color: var(--color-bg-raised);
}

.section__title {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 900;
  text-align: center;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section__title em {
  font-style: normal;
  color: var(--color-accent);
}

.section__subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 1rem;
  max-width: 560px;
  margin: 0 auto 40px;
}

/* Dividers */
.divider {
  height: 1px;
  border: none;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--color-border) 50%,
    transparent 100%
  );
  margin: 0;
}

.divider--accent {
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--color-accent) 50%,
    transparent 100%
  );
}

/* --------------------------------------------------------------------------
   8. Benefit Pillars (3-column grid)
   -------------------------------------------------------------------------- */
.pillars {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.pillar {
  text-align: center;
  padding: 32px 24px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.pillar:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.pillar__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-hover));
  color: #1a1a2e;
  font-size: 1.6rem;
  margin-bottom: 18px;
}

.pillar__title {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.pillar__desc {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

@media (min-width: 600px) {
  .pillars {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

/* --------------------------------------------------------------------------
   9. Bullet List Section ("In Just 6 Short Weeks")
   -------------------------------------------------------------------------- */
.checklist {
  list-style: none;
  max-width: 560px;
  margin-inline: auto;
}

.checklist__item {
  position: relative;
  padding: 12px 0 12px 36px;
  font-size: 1.05rem;
  line-height: 1.5;
  border-bottom: 1px solid var(--color-border);
}

.checklist__item:last-child {
  border-bottom: none;
}

.checklist__item::before {
  content: "\2713";
  position: absolute;
  left: 0;
  top: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #1a1a2e;
  font-size: 0.75rem;
  font-weight: 800;
}

/* --------------------------------------------------------------------------
   10. Coach Bio Section
   -------------------------------------------------------------------------- */
.coach {
  display: flex;
  flex-direction: column;
  gap: 28px;
  align-items: center;
}

.coach__image {
  width: 100%;
  max-width: 280px;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  flex-shrink: 0;
}

.coach__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.coach__text {
  text-align: center;
}

.coach__name {
  font-size: 1.4rem;
  font-weight: 900;
  margin-bottom: 4px;
}

.coach__role {
  font-size: 0.9rem;
  color: var(--color-accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

.coach__bio {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

@media (min-width: 600px) {
  .coach {
    flex-direction: row;
    align-items: flex-start;
    gap: 36px;
  }

  .coach__image {
    max-width: 240px;
  }

  .coach__text {
    text-align: left;
  }
}

/* --------------------------------------------------------------------------
   11. FAQ Accordion
   -------------------------------------------------------------------------- */
.faq-list {
  max-width: 680px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

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

.faq-item.is-open {
  border-color: var(--color-accent);
}

.faq-item__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 18px 20px;
  background: none;
  border: none;
  color: var(--color-text);
  font-family: var(--font-family);
  font-size: 1rem;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  gap: 12px;
  transition: color var(--transition-fast);
}

.faq-item__question:hover {
  color: var(--color-accent);
}

.faq-item__toggle {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--color-text-muted);
  transition:
    transform var(--transition-med),
    background-color var(--transition-fast),
    color var(--transition-fast);
}

.faq-item.is-open .faq-item__toggle {
  transform: rotate(45deg);
  background-color: var(--color-accent);
  color: #1a1a2e;
  border-color: var(--color-accent);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-med), padding var(--transition-med);
}

.faq-item.is-open .faq-item__answer {
  max-height: 400px;
}

.faq-item__answer-inner {
  padding: 0 20px 20px;
  color: var(--color-text-muted);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   12. Reviews / Testimonials
   -------------------------------------------------------------------------- */
.reviews {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.review-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.review-card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-2px);
}

.review-card__stars {
  color: var(--color-gold);
  font-size: 1.1rem;
  letter-spacing: 2px;
  margin-bottom: 14px;
}

.review-card__text {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
  font-style: italic;
}

.review-card__text::before {
  content: "\201C";
  color: var(--color-accent);
  font-size: 1.4rem;
  font-weight: 800;
  margin-right: 2px;
}

.review-card__author {
  font-weight: 700;
  font-size: 0.9rem;
}

.review-card__meta {
  font-size: 0.8rem;
  color: var(--color-text-dim);
  margin-top: 2px;
}

@media (min-width: 600px) {
  .reviews {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* --------------------------------------------------------------------------
   13. Forms — Shared Styles (Opt-in & Application)
   -------------------------------------------------------------------------- */
.form {
  max-width: 520px;
  margin-inline: auto;
}

.form__group {
  margin-bottom: 20px;
}

.form__label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.form__label--required::after {
  content: " *";
  color: var(--color-accent);
}

.form__input,
.form__textarea,
.form__select {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-family);
  font-size: 1rem;
  color: var(--color-text);
  background-color: var(--color-bg-input);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--color-text-dim);
}

.form__input:focus,
.form__textarea:focus,
.form__select:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

/* Validation states */
.form__input--valid,
.form__textarea--valid {
  border-color: var(--color-success);
}

.form__input--valid:focus,
.form__textarea--valid:focus {
  box-shadow: 0 0 0 3px rgba(107, 167, 59, 0.25);
}

.form__input--invalid,
.form__textarea--invalid {
  border-color: var(--color-error);
}

.form__input--invalid:focus,
.form__textarea--invalid:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.25);
}

.form__error {
  font-size: 0.8rem;
  color: var(--color-error);
  margin-top: 6px;
}

.form__textarea {
  min-height: 110px;
  resize: vertical;
}

/* --------------------------------------------------------------------------
   14. Opt-in Form (Name / Email / Phone)
   -------------------------------------------------------------------------- */
.optin-form {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 36px 28px;
}

.optin-form__heading {
  font-size: 1.3rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 6px;
}

.optin-form__sub {
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 28px;
}

/* --------------------------------------------------------------------------
   15. Application Form (Radio buttons, Fieldsets)
   -------------------------------------------------------------------------- */
.fieldset {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  margin-bottom: 24px;
  background-color: var(--color-bg-card);
}

.fieldset__legend {
  font-size: 1rem;
  font-weight: 800;
  padding: 0 8px;
  color: var(--color-text);
}

/* Custom radio buttons */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 8px;
}

.radio {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background-color: var(--color-bg-input);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    background-color var(--transition-fast);
}

.radio:hover {
  border-color: var(--color-border-light);
}

.radio__input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.radio__indicator {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--color-border-light);
  background-color: var(--color-bg);
  position: relative;
  transition:
    border-color var(--transition-fast),
    background-color var(--transition-fast);
}

.radio__indicator::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-accent);
  transform: translate(-50%, -50%) scale(0);
  transition: transform var(--transition-fast);
}

.radio__input:checked ~ .radio__indicator {
  border-color: var(--color-accent);
}

.radio__input:checked ~ .radio__indicator::after {
  transform: translate(-50%, -50%) scale(1);
}

.radio__input:checked ~ .radio__label {
  color: var(--color-text);
}

/* Highlight the entire radio row when selected */
.radio:has(.radio__input:checked) {
  border-color: var(--color-accent);
  background-color: rgba(226, 189, 35, 0.06);
}

.radio__label {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: color var(--transition-fast);
}

/* --------------------------------------------------------------------------
   16. Thank You Page
   -------------------------------------------------------------------------- */
.thankyou {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px var(--gutter);
}

.thankyou__checkmark {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-hover));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  color: #1a1a2e;
  margin-bottom: 28px;
  animation: checkmark-pop 0.6s var(--ease-out) both;
}

@keyframes checkmark-pop {
  0%   { transform: scale(0); opacity: 0; }
  60%  { transform: scale(1.15); }
  100% { transform: scale(1); opacity: 1; }
}

.thankyou__headline {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 900;
  margin-bottom: 14px;
}

.thankyou__message {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  line-height: 1.6;
  max-width: 480px;
  margin: 0 auto 32px;
}

/* --------------------------------------------------------------------------
   17. Trust Badges
   -------------------------------------------------------------------------- */
.trust-badges {
  text-align: center;
  padding: 40px 0;
}

.trust-badges__label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-text-dim);
  margin-bottom: 20px;
}

.trust-badges__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 28px 36px;
}

.trust-badges__item {
  opacity: 0.45;
  transition: opacity var(--transition-fast);
  max-height: 32px;
}

.trust-badges__item:hover {
  opacity: 0.8;
}

/* --------------------------------------------------------------------------
   18. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 32px 0;
  text-align: center;
}

.site-footer__copy {
  font-size: 0.82rem;
  color: var(--color-text-dim);
}

.site-footer__links {
  margin-top: 10px;
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.site-footer__links a {
  font-size: 0.8rem;
  color: var(--color-text-dim);
  transition: color var(--transition-fast);
}

.site-footer__links a:hover {
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   19. Utility Classes
   -------------------------------------------------------------------------- */
.text-center  { text-align: center; }
.text-left    { text-align: left; }
.text-accent  { color: var(--color-accent); }
.text-muted   { color: var(--color-text-muted); }
.mt-0  { margin-top: 0; }
.mt-1  { margin-top: 8px; }
.mt-2  { margin-top: 16px; }
.mt-3  { margin-top: 24px; }
.mt-4  { margin-top: 32px; }
.mb-0  { margin-bottom: 0; }
.mb-1  { margin-bottom: 8px; }
.mb-2  { margin-bottom: 16px; }
.mb-3  { margin-bottom: 24px; }
.mb-4  { margin-bottom: 32px; }
.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;
}

/* --------------------------------------------------------------------------
   20. Animations
   -------------------------------------------------------------------------- */

/* Fade-in on scroll (add via JS with IntersectionObserver) */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.stagger > *:nth-child(1) { transition-delay: 0s; }
.stagger > *:nth-child(2) { transition-delay: 0.08s; }
.stagger > *:nth-child(3) { transition-delay: 0.16s; }
.stagger > *:nth-child(4) { transition-delay: 0.24s; }
.stagger > *:nth-child(5) { transition-delay: 0.32s; }
.stagger > *:nth-child(6) { transition-delay: 0.40s; }

/* Spin (for loading states) */
@keyframes spin {
  to { transform: rotate(360deg); }
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

/* --------------------------------------------------------------------------
   21. Responsive Breakpoints
   -------------------------------------------------------------------------- */
@media (min-width: 480px) {
  :root {
    --gutter: 28px;
  }

  .section {
    padding: 72px 0;
  }

  .btn--lg {
    padding: 20px 52px;
    font-size: 1.15rem;
  }
}

@media (min-width: 768px) {
  :root {
    --gutter: 36px;
  }

  .section {
    padding: 88px 0;
  }

  .hero {
    min-height: 90vh;
    padding: 100px var(--gutter) 80px;
  }

  .optin-form {
    padding: 48px 40px;
  }

  .fieldset {
    padding: 32px 28px;
  }
}

/* --------------------------------------------------------------------------
   22. Print Styles
   -------------------------------------------------------------------------- */
@media print {
  body {
    background: #fff;
    color: #000;
  }

  .urgency-banner,
  .site-header,
  .countdown,
  .btn--pulse,
  .site-footer {
    display: none;
  }
}