/* ==========================================================================
   Healthy Habits Log — Public Site Styles
   ========================================================================== */

:root {
  --color-primary: #2f9e6b;
  --color-primary-dark: #227c53;
  --color-primary-light: #e6f5ee;
  --color-accent: #ff8a5c;
  --color-text: #1f2a24;
  --color-text-muted: #5c6b63;
  --color-bg: #fbfaf7;
  --color-card: #ffffff;
  --color-border: #e6e2d8;
  --radius: 14px;
  --shadow: 0 4px 20px rgba(31, 42, 36, 0.06);
  --shadow-hover: 0 10px 30px rgba(31, 42, 36, 0.12);
  --font-heading: Georgia, 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
}

.container { max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.section { padding: 56px 0; }
.section-title { font-family: var(--font-heading); font-size: 1.8rem; margin-bottom: 24px; }

a { color: var(--color-primary-dark); text-decoration: none; }
a:hover { color: var(--color-primary); }

h1, h2, h3 { font-family: var(--font-heading); line-height: 1.25; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 30px;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.2s ease;
  font-size: 0.95rem;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; }
.btn-outline { background: transparent; border-color: var(--color-primary); color: var(--color-primary-dark); }
.btn-outline:hover { background: var(--color-primary-light); }
.btn-block { width: 100%; text-align: center; }

/* Header */
.site-header { background: #fff; border-bottom: 1px solid var(--color-border); position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; align-items: center; gap: 24px; padding: 14px 20px; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 8px; font-family: var(--font-heading); font-size: 1.35rem; font-weight: bold; color: var(--color-text); }
.logo-icon { font-size: 1.4rem; }
.nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; }
.main-nav { display: flex; gap: 22px; margin-left: auto; align-items: center; }
.main-nav a { color: var(--color-text); font-weight: 500; font-size: 0.95rem; }
.dropdown { position: relative; }
.dropdown-menu { display: none; position: absolute; top: 100%; left: 0; background: #fff; box-shadow: var(--shadow-hover); border-radius: 10px; padding: 8px; min-width: 180px; }
.dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu a { display: block; padding: 8px 12px; border-radius: 6px; }
.dropdown-menu a:hover { background: var(--color-primary-light); }
.header-search { display: flex; align-items: center; border: 1px solid var(--color-border); border-radius: 30px; overflow: hidden; }
.header-search input { border: none; padding: 8px 14px; outline: none; width: 160px; font-size: 0.9rem; }
.header-search button { border: none; background: var(--color-primary-light); padding: 8px 14px; cursor: pointer; }

/* Hero */
.hero { background: linear-gradient(135deg, var(--color-primary-light), #f2efe4); padding: 80px 0; text-align: center; }
.hero-inner h1 { font-size: 2.6rem; max-width: 760px; margin: 0 auto 16px; }
.hero-inner p { font-size: 1.15rem; color: var(--color-text-muted); max-width: 620px; margin: 0 auto 30px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Post grid & cards */
.post-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 28px; }
.featured-grid { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.post-card { background: var(--color-card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: box-shadow 0.2s, transform 0.2s; }
.post-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.post-card-img { display: block; position: relative; aspect-ratio: 16/10; background: var(--color-primary-light); overflow: hidden; }
.post-card-img img { width: 100%; height: 100%; object-fit: cover; }
.badge { display: inline-block; padding: 5px 12px; border-radius: 20px; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em; }
.badge-category { background: var(--color-primary); color: #fff; }
.post-card-img .badge-category { position: absolute; top: 12px; left: 12px; }
.post-card-body { padding: 20px; }
.post-card-body h3 { font-size: 1.15rem; margin: 0 0 10px; }
.post-card-body h3 a { color: var(--color-text); }
.post-card-excerpt { color: var(--color-text-muted); font-size: 0.92rem; margin-bottom: 14px; }
.post-card-meta { font-size: 0.8rem; color: var(--color-text-muted); }

/* Category pills */
.category-pills { display: flex; gap: 12px; flex-wrap: wrap; }
.category-pill { background: var(--color-primary-light); color: var(--color-primary-dark); padding: 10px 20px; border-radius: 30px; font-weight: 600; font-size: 0.9rem; }
.category-pill:hover { background: var(--color-primary); color: #fff; }

.section-cta { text-align: center; margin-top: 32px; }

/* Calculators promo */
.calc-promo-card { background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); color: #fff; border-radius: 20px; padding: 48px; text-align: center; }
.calc-promo-card h2 { color: #fff; margin-top: 0; }
.calc-promo-card p { opacity: 0.9; margin-bottom: 24px; }
.calc-promo-card .btn-primary { background: #fff; color: var(--color-primary-dark); }

/* Single post */
.single-post { max-width: 780px; padding-top: 40px; padding-bottom: 60px; }
.single-post-header h1 { font-size: 2.2rem; margin: 14px 0; }
.single-post-meta { display: flex; align-items: center; gap: 6px; color: var(--color-text-muted); font-size: 0.9rem; flex-wrap: wrap; }
.byline-avatar { width: 28px; height: 28px; border-radius: 50%; object-fit: cover; }
.single-post-image { margin: 24px 0; border-radius: var(--radius); overflow: hidden; }
.single-post-image img { width: 100%; display: block; }
.single-post-content { font-size: 1.08rem; }
.single-post-content h2 { margin-top: 2em; font-size: 1.5rem; }
.single-post-content h3 { margin-top: 1.6em; font-size: 1.2rem; }
.single-post-content img { max-width: 100%; border-radius: 10px; }
.single-post-content ul, .single-post-content ol { padding-left: 1.4em; }
.single-post-content blockquote { border-left: 4px solid var(--color-primary); margin: 1.5em 0; padding: 0.5em 1.2em; background: var(--color-primary-light); border-radius: 0 10px 10px 0; }

.post-tags { margin: 30px 0; display: flex; gap: 10px; flex-wrap: wrap; }
.tag-pill { background: var(--color-primary-light); color: var(--color-primary-dark); padding: 6px 14px; border-radius: 20px; font-size: 0.85rem; }

.share-bar { display: flex; align-items: center; gap: 14px; padding: 20px 0; border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); margin: 20px 0; flex-wrap: wrap; }
.share-bar a { font-weight: 600; font-size: 0.9rem; }

/* Premium author card */
.author-card {
  display: flex;
  gap: 24px;
  background: linear-gradient(135deg, #fff, var(--color-primary-light));
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 30px;
  margin: 40px 0;
  box-shadow: var(--shadow);
}
.author-card-photo { width: 96px; height: 96px; border-radius: 50%; object-fit: cover; border: 3px solid #fff; box-shadow: 0 4px 14px rgba(0,0,0,0.1); flex-shrink: 0; }
.author-card-label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-muted); font-weight: 700; }
.author-card-body h3 { margin: 4px 0 2px; font-size: 1.3rem; }
.author-card-title { color: var(--color-primary-dark); font-weight: 600; margin: 0 0 10px; font-size: 0.92rem; }
.author-card-bio { color: var(--color-text-muted); margin: 0 0 12px; font-size: 0.95rem; }
.author-card-social { display: flex; gap: 14px; }
.author-card-social a { font-weight: 600; font-size: 0.85rem; background: #fff; padding: 6px 14px; border-radius: 20px; box-shadow: var(--shadow); }

/* Author hero (archive page) */
.author-hero { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; }
.author-hero-photo { width: 130px; height: 130px; border-radius: 50%; object-fit: cover; border: 4px solid #fff; box-shadow: var(--shadow-hover); }
.author-hero-bio { color: var(--color-text-muted); max-width: 600px; }

/* Related posts */
.related-posts { margin: 50px 0; }

/* Comments */
.comments-section { margin-top: 50px; }
.comment { display: flex; gap: 14px; margin-bottom: 22px; }
.comment-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--color-primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; flex-shrink: 0; }
.comment-body strong { margin-right: 8px; }
.comment-time { font-size: 0.8rem; color: var(--color-text-muted); }
.comment-form { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 26px; margin-top: 24px; }
.comment-form h3 { margin-top: 0; }
.comment-note { font-size: 0.82rem; color: var(--color-text-muted); }

/* Forms (public) */
.form-row { display: flex; gap: 16px; margin-bottom: 14px; }
.form-row input { flex: 1; }
input[type="text"], input[type="email"], input[type="number"], input[type="url"], input[type="password"], select, textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.95rem;
  margin-bottom: 14px;
  background: #fff;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--color-primary); }

.contact-form, .contact-section { max-width: 640px; }

/* Alerts */
.alert { padding: 14px 18px; border-radius: 10px; margin: 16px 0; font-size: 0.92rem; }
.alert-success { background: #e6f5ee; color: #1c6b48; border: 1px solid #b8e2cd; }
.alert-error { background: #fdeceb; color: #a3352c; border: 1px solid #f6c4bf; }

/* Page header */
.page-header { padding: 40px 0 10px; }
.page-header h1 { font-size: 2.1rem; margin-bottom: 6px; }
.page-header p { color: var(--color-text-muted); }

.static-page { max-width: 780px; }

/* Pagination */
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 40px; flex-wrap: wrap; }
.page-link { padding: 8px 15px; border: 1px solid var(--color-border); border-radius: 8px; font-size: 0.9rem; }
.page-link.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* Calculators */
.calc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 22px; }
.calc-card { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 28px; text-align: center; box-shadow: var(--shadow); transition: transform 0.2s, box-shadow 0.2s; }
.calc-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.calc-icon { font-size: 2.2rem; display: block; margin-bottom: 12px; }
.calc-card h3 { margin: 0 0 8px; font-size: 1.1rem; color: var(--color-text); }
.calc-card p { color: var(--color-text-muted); font-size: 0.88rem; margin: 0; }

.calc-section { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: start; }
.calc-tool { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.calc-form label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 4px; }
.calc-hint { font-weight: 400; color: var(--color-text-muted); font-size: 0.8rem; }
.calc-unit-toggle { display: flex; margin-bottom: 20px; border: 1px solid var(--color-border); border-radius: 30px; overflow: hidden; }
.unit-btn { flex: 1; padding: 10px; border: none; background: #fff; cursor: pointer; font-weight: 600; font-size: 0.88rem; }
.unit-btn.active { background: var(--color-primary); color: #fff; }
.unit-fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; }

.calc-result { margin-top: 24px; padding: 22px; background: var(--color-primary-light); border-radius: 12px; text-align: center; }
.calc-result-value { font-size: 2.2rem; font-weight: 700; color: var(--color-primary-dark); font-family: var(--font-heading); }
.calc-result-label { font-size: 0.95rem; color: var(--color-text-muted); font-weight: 600; margin-top: 4px; }
.calc-result-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(100px, 1fr)); gap: 16px; }
.calc-good { color: #1c6b48 !important; } .calc-warn { color: #b5780a !important; } .calc-bad { color: #a3352c !important; }
.calc-error { color: #a3352c; font-weight: 600; }
.calc-goal-table { margin-top: 18px; border-top: 1px solid var(--color-border); padding-top: 14px; }
.calc-goal-table div { display: flex; justify-content: space-between; padding: 6px 0; font-size: 0.92rem; }
.hr-zone-table { margin-top: 16px; text-align: left; }
.hr-zone-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--color-border); font-size: 0.9rem; }

.calc-info h2 { font-size: 1.3rem; }
.calc-table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.calc-table th, .calc-table td { text-align: left; padding: 10px; border-bottom: 1px solid var(--color-border); font-size: 0.92rem; }
.calc-disclaimer { font-size: 0.82rem; color: var(--color-text-muted); font-style: italic; }

/* FAQ Accordion */
.faq-section { margin: 44px 0; }
.faq-accordion { display: flex; flex-direction: column; gap: 12px; }
.faq-item { border-radius: 12px; overflow: hidden; border: 1px solid var(--color-border); background: #fff; }
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 22px;
  background: #fff;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  text-align: left;
  color: var(--color-primary-dark);
  transition: background 0.2s, color 0.2s;
}
.faq-chevron { transition: transform 0.2s; flex-shrink: 0; font-size: 0.9rem; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.25s ease; background: #f7f9f8; }
.faq-answer p { margin: 0; padding: 0 22px; color: var(--color-text-muted); font-size: 0.95rem; line-height: 1.6; }

.faq-item.faq-open .faq-question { background: #205e8c; color: #fff; }
.faq-item.faq-open .faq-chevron { transform: rotate(180deg); }
.faq-item.faq-open .faq-answer { max-height: 500px; }
.faq-item.faq-open .faq-answer p { padding-top: 16px; padding-bottom: 18px; }

/* Footer */
.site-footer { background: #16241d; color: #cbd9d0; margin-top: 60px; padding-top: 50px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1.4fr; gap: 30px; padding-bottom: 40px; }
.footer-logo { color: #fff; }
.footer-col h4 { color: #fff; font-size: 0.95rem; margin-bottom: 14px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: #cbd9d0; font-size: 0.9rem; }
.footer-col a:hover { color: #fff; }
.social-links { display: flex; gap: 14px; margin-top: 14px; }
.newsletter-form { display: flex; gap: 8px; margin-top: 10px; }
.newsletter-form input { margin-bottom: 0; }
.newsletter-form button { background: var(--color-primary); color: #fff; border: none; border-radius: 10px; padding: 0 16px; cursor: pointer; font-weight: 600; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px; text-align: center; font-size: 0.85rem; margin-top: 10px; }

/* Responsive */
@media (max-width: 900px) {
  .calc-section { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-toggle { display: block; margin-left: auto; }
  .main-nav { display: none; flex-direction: column; width: 100%; margin-left: 0; align-items: flex-start; gap: 4px; }
  .main-nav.open { display: flex; }
  .header-search { display: none; }
  .hero-inner h1 { font-size: 1.9rem; }
  .author-card { flex-direction: column; text-align: center; }
  .author-card-social { justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { flex-direction: column; }
}