/* ==========================================================================
   Calculate Fasting — shared static-page styles
   Mirrors the main app design system (forest green #16a34a, ocean blue
   #0ea5e9, amber #f59e0b, cream backgrounds, Inter, card-based layout).
   Loaded once and cached across every static page for fast repeat navigation.
   ========================================================================== */

:root {
  --green: #16a34a;
  --green-dark: #15803d;
  --blue: #0ea5e9;
  --blue-dark: #0284c7;
  --amber: #f59e0b;
  --bg: #fafaf8;
  --cream: #f5f4ef;
  --ink: #111827;
  --gray-700: #374151;
  --gray-600: #4b5563;
  --gray-500: #6b7280;
  --gray-400: #9ca3af;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --gray-50: #f9fafb;
  --radius: 1rem;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.container {
  max-width: 64rem;
  margin: 0 auto;
  padding: 0 1rem;
}

.container-narrow {
  max-width: 45rem;
  margin: 0 auto;
  padding: 0 1rem;
}

/* ── Header / Nav ─────────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #fff;
  border-bottom: 1px solid var(--gray-200);
}

.nav {
  max-width: 64rem;
  margin: 0 auto;
  padding: 0 1rem;
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--green);
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: color 0.15s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--green);
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  font-size: 1.5rem;
  color: var(--gray-700);
  cursor: pointer;
  padding: 0.25rem;
  line-height: 1;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  .nav-links {
    position: absolute;
    top: 4rem;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }
  .nav-links.open {
    max-height: 22rem;
  }
  .nav-links li {
    width: 100%;
  }
  .nav-links a {
    display: block;
    padding: 0.9rem 1.25rem;
    width: 100%;
    border-top: 1px solid var(--gray-100);
    font-size: 1rem;
  }
}

/* ── Hero ─────────────────────────────────────────────────────────────── */
.hero {
  background: var(--cream);
  text-align: center;
  padding: 4.5rem 1rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
  color: var(--ink);
}

.hero p {
  font-size: 1.15rem;
  color: var(--gray-600);
  max-width: 40rem;
  margin: 0 auto;
}

.hero .eyebrow {
  font-size: 0.95rem;
  color: var(--gray-500);
}

/* ── Sections & typography ────────────────────────────────────────────── */
.section {
  padding: 3.5rem 0;
}

.section-cream {
  background: var(--cream);
}

h2 {
  font-size: clamp(1.6rem, 3.5vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 1rem;
}

h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 0.5rem;
}

p {
  color: var(--gray-700);
  margin: 0 0 1rem;
}

.lead {
  font-size: 1.15rem;
  color: var(--gray-600);
}

.text-green { color: var(--green); }
.text-blue { color: var(--blue); }
.center { text-align: center; }

/* ── Cards ────────────────────────────────────────────────────────────── */
.card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 1.75rem;
}

.card-hover {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.grid {
  display: grid;
  gap: 1.25rem;
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 820px) {
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

.feature-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.icon-green { background: rgba(22, 163, 74, 0.1); color: var(--green); }
.icon-blue { background: rgba(14, 165, 233, 0.1); color: var(--blue); }
.icon-amber { background: rgba(245, 158, 11, 0.12); color: var(--amber); }

/* ── Buttons ──────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1rem;
  padding: 0.85rem 1.75rem;
  border-radius: 0.85rem;
  border: 0;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}

.btn-green {
  background: var(--green);
  color: #fff;
  box-shadow: 0 6px 16px -6px rgba(22, 163, 74, 0.6);
}
.btn-green:hover {
  background: var(--green-dark);
  transform: translateY(-1px);
}

.btn-blue {
  background: var(--blue);
  color: #fff;
}
.btn-blue:hover {
  background: var(--blue-dark);
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* ── CTA band ─────────────────────────────────────────────────────────── */
.cta-band {
  background: var(--cream);
  text-align: center;
  padding: 4rem 1rem;
}
.cta-band h2 {
  margin-bottom: 1.5rem;
}

/* ── Forms ────────────────────────────────────────────────────────────── */
.field {
  margin-bottom: 1.1rem;
}
.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 0.4rem;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--gray-200);
  border-radius: 0.6rem;
  padding: 0.7rem 0.85rem;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--ink);
  background: #fff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}
.field textarea {
  min-height: 9rem;
  resize: vertical;
}
.form-success {
  background: rgba(22, 163, 74, 0.08);
  border: 1px solid rgba(22, 163, 74, 0.3);
  color: var(--green-dark);
  border-radius: 0.75rem;
  padding: 1rem 1.25rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}
.hidden { display: none !important; }

/* ── Contact layout ───────────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 2rem;
  align-items: start;
}
@media (max-width: 820px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}
.side-panel {
  background: var(--cream);
  border-radius: var(--radius);
  padding: 1.75rem;
}
.side-panel .item {
  margin-bottom: 1.25rem;
}
.side-panel .item:last-child {
  margin-bottom: 0;
}
.side-panel h4 {
  margin: 0 0 0.25rem;
  font-size: 0.95rem;
  color: var(--ink);
}
.side-panel p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--gray-600);
}
.email-line {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--gray-200);
  font-size: 0.95rem;
  color: var(--gray-600);
}
.email-line a {
  color: var(--blue);
  font-weight: 600;
}

/* ── Prose (privacy / articles) ───────────────────────────────────────── */
.prose {
  font-size: 1.05rem;
  color: var(--gray-700);
}
.prose h2 {
  font-size: 1.4rem;
  margin: 2.25rem 0 0.75rem;
}
.prose h3 {
  font-size: 1.15rem;
  margin: 1.75rem 0 0.5rem;
}
.prose p {
  margin: 0 0 1.1rem;
  line-height: 1.75;
}
.prose ul {
  margin: 0 0 1.1rem;
  padding-left: 1.25rem;
}
.prose li {
  margin-bottom: 0.5rem;
  color: var(--gray-700);
}
.prose a {
  color: var(--blue);
  font-weight: 600;
}
.prose strong {
  color: var(--ink);
}

/* ── Blog ─────────────────────────────────────────────────────────────── */
.tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--blue);
  background: rgba(14, 165, 233, 0.1);
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
}
.post-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}
.post-card h3 {
  margin: 0.85rem 0 0.5rem;
  font-size: 1.25rem;
  line-height: 1.3;
}
.post-card p {
  font-size: 0.95rem;
  color: var(--gray-600);
  flex: 1;
}
.post-meta {
  font-size: 0.8rem;
  color: var(--gray-400);
  margin-bottom: 0.5rem;
}
.read-more {
  color: var(--green);
  font-weight: 700;
  font-size: 0.9rem;
  margin-top: 0.75rem;
}

/* ── Article ──────────────────────────────────────────────────────────── */
.article-header {
  max-width: 45rem;
  margin: 0 auto;
  padding: 2.5rem 1rem 1rem;
}
.article-header h1 {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0.75rem 0 1rem;
  color: var(--ink);
}
.byline {
  font-size: 0.9rem;
  color: var(--gray-500);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: center;
}
.byline .dot::before {
  content: '·';
  margin-right: 1rem;
  color: var(--gray-400);
}
.article-hero-img {
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 600;
  object-fit: cover;
  border-radius: var(--radius);
  margin: 1.5rem 0;
}
.article-body {
  max-width: 45rem;
  margin: 0 auto;
  padding: 0 1rem 1rem;
}
.cta-inline {
  background: var(--cream);
  border-radius: var(--radius);
  padding: 1.75rem;
  text-align: center;
  margin: 2.5rem 0 1rem;
}
.cta-inline a {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--green);
}
.share {
  margin: 2rem 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--gray-200);
}
.share span {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-500);
  margin-right: 0.5rem;
}
.share a {
  display: inline-flex;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--gray-100);
  color: var(--gray-600);
  align-items: center;
  justify-content: center;
  margin-right: 0.5rem;
  font-size: 1.1rem;
  transition: background 0.15s ease, color 0.15s ease;
}
.share a:hover {
  background: var(--green);
  color: #fff;
}

/* ── Footer ───────────────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--gray-200);
  background: #fff;
  margin-top: 3rem;
}
.footer-inner {
  max-width: 64rem;
  margin: 0 auto;
  padding: 2.5rem 1rem;
}
.footer-cols {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.footer-brand p {
  margin: 0;
}
.footer-brand .name {
  font-weight: 800;
  color: var(--ink);
  font-size: 1.05rem;
}
.footer-brand .tagline {
  color: var(--gray-500);
  font-size: 0.9rem;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}
.footer-nav a {
  font-size: 0.9rem;
  color: var(--gray-500);
  transition: color 0.15s ease;
}
.footer-nav a:hover {
  color: var(--ink);
}
.footer-built {
  font-size: 0.9rem;
  color: var(--gray-500);
}
.footer-privacy {
  border-top: 1px solid var(--gray-100);
  padding-top: 1.5rem;
  text-align: center;
}
.footer-privacy p {
  margin: 0;
  font-size: 0.78rem;
  color: var(--gray-400);
}