/* ==========================================================================
   A FINITE LIFE — afinitelife.com
   Creative Direction: Literary, contemplative, understated editorial aesthetic
   Palette:
     Warm ivory background: #F4F0E8
     Deep forest/charcoal green: #293B33
     Muted sage: #647563
     Warm taupe: #BCA98B
     Soft body-text charcoal: #555B52
     Subtle dividing lines: #D9D0C2
   Typography:
     Display & Literary Serifs: Cormorant Garamond
     Body, Forms & Microcopy: Inter
   ========================================================================== */

:root {
  /* Core Brand Palette */
  --bg-ivory: #F4F0E8;
  --color-forest: #293B33;
  --color-forest-dark: #1E2C26;
  --color-sage: #647563;
  --color-taupe: #BCA98B;
  --color-charcoal: #555B52;
  --color-divider: #D9D0C2;
  --color-divider-subtle: rgba(217, 208, 194, 0.65);
  --color-card-bg: rgba(255, 255, 255, 0.38);
  --color-card-border: rgba(217, 208, 194, 0.85);
  --color-input-bg: rgba(255, 255, 255, 0.75);
  --color-input-focus: #FFFFFF;
  --color-error: #943A34;
  --color-error-bg: rgba(148, 58, 52, 0.06);

  /* Typography */
  --font-serif: 'Cormorant Garamond', Garamond, 'Baskerville', 'Georgia', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Layout Spacing */
  --content-max-width: 720px;
  --narrow-max-width: 540px;
  --transition-smooth: 0.22s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

html {
  font-size: 16px;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  background-color: var(--bg-ivory);
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  color: var(--color-charcoal);
  background-color: var(--bg-ivory);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  padding: 0;
}

/* --------------------------------------------------------------------------
   Accessibility & Skip Link
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  background: var(--color-forest);
  color: var(--bg-ivory);
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  border-radius: 4px;
  z-index: 9999;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 16px;
  outline: 2px solid var(--color-taupe);
  outline-offset: 2px;
}

:focus-visible {
  outline: 2px solid var(--color-forest);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   Page Container & Composition
   -------------------------------------------------------------------------- */
.page-wrapper {
  width: 100%;
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 88px 24px 64px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

@media (min-width: 768px) {
  .page-wrapper {
    padding: 120px 32px 88px;
  }
}

/* --------------------------------------------------------------------------
   Brand Identifier
   -------------------------------------------------------------------------- */
.brand-header {
  margin-bottom: 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.brand-identifier {
  font-family: var(--font-sans);
  font-size: 0.8125rem; /* 13px */
  font-weight: 500;
  letter-spacing: 0.38em;
  text-transform: uppercase;
  color: var(--color-forest);
  margin-right: -0.38em; /* offset trailing letter spacing for visual balance */
  margin-bottom: 20px;
}

.brand-divider {
  width: 44px;
  height: 1px;
  background-color: var(--color-taupe);
  opacity: 0.9;
  border: none;
}

/* --------------------------------------------------------------------------
   Hero Headline
   -------------------------------------------------------------------------- */
.hero-section {
  width: 100%;
  margin-bottom: 48px;
}

.hero-headline {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(2.125rem, 5.2vw, 3.375rem);
  line-height: 1.24;
  letter-spacing: -0.015em;
  color: var(--color-forest);
  margin-bottom: 36px;
  text-wrap: balance;
}

.hero-headline .headline-lead {
  display: block;
  margin-bottom: 0.18em;
}

.hero-headline .headline-emphasis {
  display: block;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--color-sage);
}

/* --------------------------------------------------------------------------
   Supporting Statement
   -------------------------------------------------------------------------- */
.supporting-statement-container {
  max-width: var(--narrow-max-width);
  margin: 0 auto 52px;
  padding: 0 12px;
}

.supporting-statement {
  font-family: var(--font-sans);
  font-size: clamp(1.0625rem, 2.4vw, 1.25rem);
  line-height: 1.68;
  font-weight: 400;
  color: var(--color-charcoal);
  letter-spacing: -0.005em;
  text-wrap: pretty;
}

/* --------------------------------------------------------------------------
   Book Introduction
   -------------------------------------------------------------------------- */
.book-intro-container {
  max-width: 620px;
  margin: 0 auto 56px;
  text-align: center;
}

.book-intro-text {
  font-family: var(--font-sans);
  font-size: 1.0625rem; /* 17px */
  line-height: 1.82;
  color: var(--color-charcoal);
  margin-bottom: 1.4em;
  text-wrap: pretty;
}

.book-intro-text:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Email Registration Section & Form Card
   -------------------------------------------------------------------------- */
.signup-section {
  width: 100%;
  max-width: 580px;
  margin: 0 auto 64px;
}

.signup-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 6px;
  padding: 36px 24px;
  box-shadow: 0 1px 3px rgba(41, 59, 51, 0.03);
  text-align: left;
}

@media (min-width: 600px) {
  .signup-card {
    padding: 44px 40px 38px;
  }
}

.reader-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hidden-field {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.form-label {
  font-family: var(--font-sans);
  font-size: 0.875rem; /* 14px */
  font-weight: 500;
  color: var(--color-forest);
  letter-spacing: 0.01em;
}

.required-mark {
  color: var(--color-sage);
  margin-left: 2px;
}

.form-input {
  width: 100%;
  padding: 13px 15px;
  font-family: var(--font-sans);
  font-size: 0.9375rem; /* 15px */
  color: var(--color-forest);
  background: var(--color-input-bg);
  border: 1px solid var(--color-divider);
  border-radius: 4px;
  transition: border-color var(--transition-smooth), background-color var(--transition-smooth), box-shadow var(--transition-smooth);
  -webkit-appearance: none;
  appearance: none;
}

.form-input::placeholder {
  color: rgba(85, 91, 82, 0.5);
  font-weight: 400;
}

.form-input:focus {
  background: var(--color-input-focus);
  border-color: var(--color-forest);
  outline: none;
  box-shadow: 0 0 0 3px rgba(41, 59, 51, 0.12);
}

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

.field-error-message {
  font-family: var(--font-sans);
  font-size: 0.8125rem; /* 13px */
  color: var(--color-error);
  line-height: 1.4;
  display: none;
}

.field-error-message.is-visible {
  display: block;
}

/* Consent Checkbox */
.consent-group {
  margin-top: 4px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.consent-label-wrapper {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
}

.consent-checkbox {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  min-width: 18px;
  margin-top: 2px;
  border: 1.5px solid var(--color-divider);
  border-radius: 3px;
  background: var(--color-input-bg);
  cursor: pointer;
  display: grid;
  place-content: center;
  transition: all var(--transition-smooth);
}

.consent-checkbox::before {
  content: "";
  width: 9px;
  height: 9px;
  transform: scale(0);
  transition: transform 0.15s ease-in-out;
  box-shadow: inset 1em 1em var(--color-forest);
  transform-origin: center;
  clip-path: polygon(14% 44%, 0 60%, 38% 100%, 100% 16%, 80% 0%, 38% 62%);
}

.consent-checkbox:checked {
  background-color: var(--bg-ivory);
  border-color: var(--color-forest);
}

.consent-checkbox:checked::before {
  transform: scale(1);
}

.consent-checkbox:focus-visible {
  outline: 2px solid var(--color-forest);
  outline-offset: 2px;
}

.consent-checkbox.has-error {
  border-color: var(--color-error);
}

.consent-text {
  font-family: var(--font-sans);
  font-size: 0.8125rem; /* 13px */
  line-height: 1.55;
  color: var(--color-charcoal);
  user-select: none;
}

.privacy-inline-link {
  color: var(--color-forest);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--color-taupe);
  transition: color var(--transition-smooth), text-decoration-color var(--transition-smooth);
}

.privacy-inline-link:hover {
  color: var(--color-sage);
  text-decoration-color: var(--color-sage);
}

/* Primary Submit Button */
.btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 15px 28px;
  font-family: var(--font-sans);
  font-size: 0.9375rem; /* 15px */
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--bg-ivory);
  background-color: var(--color-forest);
  border: 1px solid var(--color-forest);
  border-radius: 4px;
  cursor: pointer;
  transition: background-color var(--transition-smooth), border-color var(--transition-smooth), transform 0.15s ease;
  margin-top: 6px;
}

.btn-submit:hover {
  background-color: var(--color-forest-dark);
  border-color: var(--color-forest-dark);
}

.btn-submit:active {
  transform: scale(0.99);
}

.btn-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.btn-arrow {
  display: inline-block;
  transition: transform var(--transition-smooth);
}

.btn-submit:hover .btn-arrow {
  transform: translateX(3px);
}

/* Supporting Reassurance */
.supporting-reassurance {
  font-family: var(--font-sans);
  font-size: 0.8125rem; /* 13px */
  line-height: 1.55;
  color: var(--color-sage);
  text-align: center;
  margin-top: 18px;
}

/* Form Submission Feedback Messages */
.form-alert {
  padding: 14px 18px;
  border-radius: 4px;
  font-size: 0.875rem;
  line-height: 1.5;
  display: none;
}

.form-alert.is-error {
  display: block;
  background-color: var(--color-error-bg);
  border: 1px solid rgba(148, 58, 52, 0.25);
  color: var(--color-error);
}

/* Submission Success State */
.submission-success-container {
  display: none;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 6px;
  padding: 44px 32px;
  text-align: center;
  box-shadow: 0 1px 3px rgba(41, 59, 51, 0.03);
}

@media (min-width: 600px) {
  .submission-success-container {
    padding: 56px 44px;
  }
}

.submission-success-container.is-visible {
  display: block;
  animation: fadeIn 0.4s ease-out;
}

.success-mark {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1.5px solid var(--color-sage);
  color: var(--color-sage);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}

.success-title {
  font-family: var(--font-serif);
  font-size: 1.875rem; /* 30px */
  font-weight: 500;
  line-height: 1.25;
  color: var(--color-forest);
  margin-bottom: 16px;
}

.success-body {
  font-family: var(--font-sans);
  font-size: 1.0625rem; /* 17px */
  line-height: 1.7;
  color: var(--color-charcoal);
  margin-bottom: 14px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  text-wrap: pretty;
}

.success-body:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Social Connection Section
   -------------------------------------------------------------------------- */
.social-section {
  width: 100%;
  max-width: 580px;
  margin: 0 auto 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.section-divider {
  width: 100%;
  max-width: 240px;
  height: 1px;
  background-color: var(--color-divider);
  border: none;
  margin: 0 auto 48px;
}

.social-heading {
  font-family: var(--font-serif);
  font-size: 1.3125rem; /* 21px */
  font-style: italic;
  font-weight: 400;
  color: var(--color-forest);
  margin-bottom: 28px;
  text-align: center;
}

.social-links-grid {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 540px) {
  .social-links-grid {
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }
}

.social-link-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 6px;
  text-decoration: none;
  color: var(--color-forest);
  transition: all var(--transition-smooth);
  min-height: 72px; /* Comfortable touch target */
}

.social-link-card:hover {
  background: rgba(255, 255, 255, 0.7);
  border-color: var(--color-taupe);
  transform: translateY(-1.5px);
  box-shadow: 0 3px 8px rgba(41, 59, 51, 0.04);
}

.social-icon-wrapper {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(244, 240, 232, 0.9);
  border: 1px solid var(--color-divider);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-forest);
  transition: border-color var(--transition-smooth), color var(--transition-smooth);
}

.social-link-card:hover .social-icon-wrapper {
  border-color: var(--color-forest);
  color: var(--color-forest);
}

.social-link-info {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.social-platform-title {
  font-family: var(--font-sans);
  font-size: 0.9375rem; /* 15px */
  font-weight: 500;
  color: var(--color-forest);
  line-height: 1.3;
}

.social-platform-desc {
  font-family: var(--font-sans);
  font-size: 0.8125rem; /* 13px */
  color: var(--color-sage);
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  width: 100%;
  max-width: var(--content-max-width);
  margin-top: auto;
  padding: 32px 24px 48px;
  border-top: 1px solid var(--color-divider-subtle);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}

.footer-author {
  font-family: var(--font-sans);
  font-size: 0.8125rem; /* 13px */
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-forest);
}

.footer-meta {
  font-family: var(--font-sans);
  font-size: 0.75rem; /* 12px */
  color: var(--color-sage);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-meta-sep {
  color: var(--color-divider);
}

.footer-link {
  color: var(--color-sage);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--color-divider);
  transition: color var(--transition-smooth), text-decoration-color var(--transition-smooth);
}

.footer-link:hover {
  color: var(--color-forest);
  text-decoration-color: var(--color-forest);
}

/* --------------------------------------------------------------------------
   Privacy Policy Page Specifics
   -------------------------------------------------------------------------- */
.policy-page {
  text-align: left;
  max-width: 680px;
}

.policy-header {
  width: 100%;
  margin-bottom: 48px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-divider);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-forest);
  text-decoration: none;
  margin-bottom: 28px;
  transition: color var(--transition-smooth), transform var(--transition-smooth);
}

.back-link:hover {
  color: var(--color-sage);
  transform: translateX(-3px);
}

.policy-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4.5vw, 2.75rem);
  font-weight: 500;
  color: var(--color-forest);
  line-height: 1.25;
  margin-bottom: 12px;
}

.policy-effective {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-sage);
}

.policy-section {
  margin-bottom: 36px;
}

.policy-section h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--color-forest);
  margin-bottom: 14px;
}

.policy-section p {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--color-charcoal);
  margin-bottom: 14px;
}

.policy-section ul {
  list-style: disc;
  margin-left: 20px;
  margin-bottom: 16px;
}

.policy-section li {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-charcoal);
  margin-bottom: 8px;
}

.policy-contact-box {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 6px;
  padding: 24px;
  margin-top: 16px;
}

/* --------------------------------------------------------------------------
   Animations & Transitions
   -------------------------------------------------------------------------- */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --------------------------------------------------------------------------
   Reduced Motion Preferences (Accessibility)
   -------------------------------------------------------------------------- */
@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;
  }
}