/* === KETO.RO — Premium Health Authority === */
:root {
  --green-900: #1a3a1a;
  --green-700: #2d5f2d;
  --green-600: #3a7a3a;
  --green-500: #4a9a4a;
  --green-100: #e8f5e8;
  --green-50: #f0faf0;
  --warm-900: #3d2b1f;
  --warm-700: #5c4033;
  --warm-500: #8b6914;
  --warm-100: #fdf6e3;
  --warm-50: #fefcf6;
  --text: #1a1a1a;
  --text-light: #555;
  --text-muted: #888;
  --border: #e0e0e0;
  --border-light: #f0f0f0;
  --bg: #fefefe;
  --bg-alt: #f7f7f5;
  --bg-card: #fff;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,.1);
  --radius: 8px;
  --radius-lg: 14px;
  --max-w: 780px;
  --max-w-wide: 1100px;
  --transition: .2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 17px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: 'Source Sans 3', 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.72;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4 {
  font-family: 'Fraunces', 'Georgia', serif;
  font-weight: 600;
  line-height: 1.25;
  color: var(--green-900);
}

h1 { font-size: 2.1rem; margin-bottom: 1rem; letter-spacing: -.02em; }
h2 { font-size: 1.45rem; margin: 2.2rem 0 .8rem; padding-top: .5rem; }
h3 { font-size: 1.15rem; margin: 1.6rem 0 .6rem; color: var(--warm-900); }

p { margin-bottom: 1rem; }

a { color: var(--green-600); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--green-900); }

strong { font-weight: 650; }
em { font-style: italic; color: var(--text-light); }

ul, ol { margin: 0 0 1rem 1.3rem; }
li { margin-bottom: .35rem; }

hr { border: none; border-top: 1px solid var(--border-light); margin: 2rem 0; }

/* === HEADER === */
.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(254,254,254,.92);
}

.header-inner {
  max-width: var(--max-w-wide);
  margin: 0 auto;
  padding: .85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  font-family: 'Fraunces', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--green-700);
  letter-spacing: -.03em;
}
.site-logo span { color: var(--green-500); font-weight: 400; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle svg { width: 24px; height: 24px; stroke: var(--text); }

.main-nav ul {
  display: flex;
  list-style: none;
  gap: .15rem;
  margin: 0;
  padding: 0;
}
.main-nav a {
  display: block;
  padding: .45rem .75rem;
  font-size: .88rem;
  font-weight: 500;
  color: var(--text-light);
  border-radius: 6px;
  transition: all var(--transition);
}
.main-nav a:hover, .main-nav a.active {
  color: var(--green-700);
  background: var(--green-50);
}

/* === LAYOUT === */
.page-wrapper {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

.page-wrapper.wide { max-width: var(--max-w-wide); }

/* === BREADCRUMBS === */
.breadcrumbs {
  font-size: .82rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}
.breadcrumbs a { color: var(--text-muted); }
.breadcrumbs a:hover { color: var(--green-600); }
.breadcrumbs .sep { margin: 0 .4rem; opacity: .5; }

/* === CONTENT === */
.article-meta {
  font-size: .85rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-light);
}

.warning-box {
  background: var(--warm-100);
  border-left: 4px solid var(--warm-500);
  padding: 1rem 1.2rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: .92rem;
  line-height: 1.6;
}
.warning-box strong { color: var(--warm-900); }

.supplement-note {
  background: var(--green-50);
  border-left: 4px solid var(--green-500);
  padding: 1rem 1.2rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: .92rem;
}

.disclaimer-footer {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 1.2rem 1.5rem;
  margin: 2.5rem 0 0;
  border-radius: var(--radius);
  font-size: .85rem;
  color: var(--text-light);
}

/* === CARDS === */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.2rem;
  margin: 1.5rem 0;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all var(--transition);
}
.card:hover {
  border-color: var(--green-500);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.card h3 { margin: 0 0 .5rem; font-size: 1.05rem; }
.card h3 a { color: var(--green-900); }
.card p { font-size: .9rem; color: var(--text-light); margin: 0; }
.card .card-tag {
  display: inline-block;
  background: var(--green-100);
  color: var(--green-700);
  padding: .15rem .55rem;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 600;
  margin-top: .6rem;
}

/* === HERO === */
.hero {
  background: linear-gradient(135deg, var(--green-900) 0%, var(--green-700) 60%, var(--green-600) 100%);
  color: #fff;
  padding: 3.5rem 2rem;
  border-radius: var(--radius-lg);
  margin-bottom: 2.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 80%, rgba(255,255,255,.06) 0%, transparent 60%),
              radial-gradient(circle at 80% 20%, rgba(255,255,255,.04) 0%, transparent 50%);
}
.hero * { position: relative; }
.hero h1 { color: #fff; font-size: 2.4rem; margin-bottom: .6rem; }
.hero p { color: rgba(255,255,255,.85); font-size: 1.12rem; max-width: 600px; margin: 0 auto 1.8rem; }

.btn {
  display: inline-block;
  padding: .7rem 1.6rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: #fff;
  color: var(--green-700);
}
.btn-primary:hover { background: var(--green-100); color: var(--green-900); }

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,.5);
}
.btn-outline:hover { border-color: #fff; color: #fff; }

.hero-actions { display: flex; gap: .8rem; justify-content: center; flex-wrap: wrap; }

/* === RECIPE CARD === */
.recipe-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: .8rem;
  background: var(--bg-alt);
  border-radius: var(--radius);
  padding: 1.2rem;
  margin: 1.5rem 0;
}
.recipe-meta-item {
  text-align: center;
}
.recipe-meta-item .label { font-size: .75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; }
.recipe-meta-item .value { font-size: 1.1rem; font-weight: 700; color: var(--green-700); }

/* === CALCULATOR === */
.calc-wrap {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 1.5rem 0;
}
.calc-wrap label { display: block; font-weight: 600; margin-bottom: .3rem; font-size: .9rem; }
.calc-field { margin-bottom: 1.2rem; }
.calc-wrap input[type="number"], .calc-wrap select {
  width: 100%;
  max-width: 300px;
  padding: .6rem .8rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: .95rem;
  font-family: inherit;
  background: #fff;
}
.calc-wrap input:focus, .calc-wrap select:focus {
  outline: none;
  border-color: var(--green-500);
  box-shadow: 0 0 0 3px var(--green-100);
}
.calc-radio { display: flex; gap: 1rem; margin-top: .3rem; }
.calc-radio label { display: flex; align-items: center; gap: .4rem; font-weight: 400; cursor: pointer; }

.calc-results {
  background: #fff;
  border: 2px solid var(--green-500);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-top: 1.5rem;
}
.calc-results h3 { color: var(--green-600); margin: 0 0 1rem; }
.macro-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}
.macro-item {
  text-align: center;
  padding: 1rem;
  background: var(--bg-alt);
  border-radius: var(--radius);
}
.macro-item .macro-val { font-size: 1.6rem; font-weight: 700; font-family: 'Fraunces', serif; }
.macro-item .macro-label { font-size: .8rem; color: var(--text-muted); }
.macro-fat .macro-val { color: var(--warm-500); }
.macro-pro .macro-val { color: var(--green-700); }
.macro-carb .macro-val { color: #c0392b; }

.btn-calc {
  background: var(--green-600);
  color: #fff;
  padding: .7rem 2rem;
  font-size: 1rem;
}
.btn-calc:hover { background: var(--green-700); color: #fff; }

/* === INTERNAL LINKS SECTION === */
.related-links {
  background: var(--green-50);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 2rem 0;
}
.related-links h3 { margin: 0 0 .8rem; font-size: 1rem; color: var(--green-700); }
.related-links ul { margin: 0; padding: 0; list-style: none; }
.related-links li { padding: .3rem 0; }
.related-links a { font-weight: 500; }

/* === FOOTER === */
.site-footer {
  background: var(--green-900);
  color: rgba(255,255,255,.7);
  padding: 3rem 1.5rem 1.5rem;
  margin-top: 4rem;
}
.footer-inner {
  max-width: var(--max-w-wide);
  margin: 0 auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer-col h4 {
  color: #fff;
  font-size: .95rem;
  margin-bottom: .8rem;
  font-family: 'Source Sans 3', sans-serif;
  font-weight: 600;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: .35rem; }
.footer-col a { color: rgba(255,255,255,.6); font-size: .88rem; }
.footer-col a:hover { color: #fff; }

.footer-disclaimer {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 1.5rem;
  font-size: .82rem;
  color: rgba(255,255,255,.45);
  line-height: 1.6;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1rem;
  font-size: .8rem;
  color: rgba(255,255,255,.35);
}

/* === FAQ ACCORDION === */
.faq-item { border-bottom: 1px solid var(--border-light); }
.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--green-900);
}
.faq-q::after { content: '+'; font-size: 1.3rem; color: var(--text-muted); transition: transform var(--transition); }
.faq-item.open .faq-q::after { content: '−'; }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
  color: var(--text-light);
  font-size: .95rem;
}
.faq-item.open .faq-a { max-height: 500px; }
.faq-a p { padding-bottom: 1rem; }

/* === MOBILE === */
@media (max-width: 768px) {
  html { font-size: 16px; }
  h1 { font-size: 1.7rem; }
  .hero { padding: 2.5rem 1.5rem; }
  .hero h1 { font-size: 1.8rem; }
  .card-grid { grid-template-columns: 1fr; }
  .macro-grid { grid-template-columns: 1fr; }

  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    padding: .5rem;
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 0; }
  .main-nav a { padding: .7rem 1rem; }
  
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: .5rem; text-align: center; }
}

/* === AUTHOR BOX === */
.author-box {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin: 2.5rem 0 1.5rem;
}
.author-label { font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-muted); margin-bottom: .2rem; }
.author-name { font-family: 'Fraunces', serif; font-size: 1.1rem; font-weight: 600; margin-bottom: .5rem; }
.author-name a { color: var(--green-700); }
.author-bio { font-size: .9rem; color: var(--text-light); margin-bottom: .6rem; line-height: 1.6; }
.reviewer { font-size: .82rem; color: var(--text-muted); font-style: italic; margin: 0; padding-top: .5rem; border-top: 1px solid var(--border-light); }

/* === QUICK ANSWER BOX === */
.quick-answer {
  background: var(--green-50);
  border: 1px solid var(--green-100);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  margin: 1.2rem 0 1.8rem;
}
.qa-q { font-weight: 600; color: var(--green-900); margin-bottom: .4rem; font-size: 1.05rem; }
.qa-a { color: var(--text); margin: 0; line-height: 1.65; }

/* === TOC === */
.toc {
  background: var(--bg-alt);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  margin: 1.5rem 0 2rem;
  max-width: 500px;
}
.toc-title { font-family: 'Fraunces', serif; font-weight: 600; font-size: .95rem; margin-bottom: .6rem; color: var(--green-900); }
.toc ol { margin: 0; padding-left: 1.2rem; }
.toc li { margin-bottom: .3rem; font-size: .9rem; }
.toc a { color: var(--text-light); }
.toc a:hover { color: var(--green-600); }

/* === DATA TABLES === */
.data-table { width: 100%; border-collapse: collapse; margin: 1.2rem 0; font-size: .92rem; }
.data-table th { background: var(--green-900); color: #fff; padding: .6rem .8rem; text-align: left; font-weight: 600; font-size: .85rem; }
.data-table td { padding: .55rem .8rem; border-bottom: 1px solid var(--border-light); }
.data-table tr:nth-child(even) td { background: var(--bg-alt); }
.data-table .keto-yes { color: var(--green-600); font-weight: 600; }
.data-table .keto-no { color: #c0392b; font-weight: 600; }
.data-table .keto-mod { color: var(--warm-500); font-weight: 600; }

/* === SOURCES === */
.sources { background: var(--bg-alt); border-radius: var(--radius); padding: 1.2rem 1.5rem; margin: 2rem 0; }
.sources h3 { font-size: .95rem; margin: 0 0 .6rem; color: var(--green-900); }
.sources ol { margin: 0; padding-left: 1.2rem; font-size: .85rem; color: var(--text-light); }
.sources li { margin-bottom: .3rem; }
.sources a { color: var(--green-600); word-break: break-all; }

/* === PRODUCT CARD (prep for monetization) === */
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
  margin: .8rem 0;
}
.product-card h4 { margin: 0 0 .4rem; font-size: 1rem; }
.product-why { font-size: .85rem; color: var(--text-muted); margin: .4rem 0 0; }