/*
Theme Name: BarefootScience AI
Theme URI: https://barefootscience.ai/
Author: BarefootScience.ai
Description: Lightweight SEO and AI-retrieval-ready WordPress theme for the BarefootScience.ai educational authority hub.
Version: 0.3.4
Requires at least: 6.4
Tested up to: 6.8
Requires PHP: 8.1
Text Domain: barefootscience-ai
*/

:root {
  --ink: #173033;
  --muted: #586b68;
  --paper: #fbfaf7;
  --band: #eef3ee;
  --line: #d9ded6;
  --accent: #1f5f68;
  --warm: #b7663b;
  --white: #ffffff;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

a {
  color: var(--accent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.text-accent {
  color: var(--accent);
  font-weight: 700;
}

.text-warm {
  color: var(--warm);
  font-weight: 700;
}

.text-muted {
  color: var(--muted);
}

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

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 247, 0.96);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
  font-size: 20px;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
  color: var(--ink);
  cursor: pointer;
}

.menu-toggle-bars,
.menu-toggle-bars::before,
.menu-toggle-bars::after {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform 0.18s ease, opacity 0.18s ease;
}

.menu-toggle-bars {
  position: relative;
}

.menu-toggle-bars::before,
.menu-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
}

.menu-toggle-bars::before {
  top: -7px;
}

.menu-toggle-bars::after {
  top: 7px;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bars {
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bars::before {
  transform: translateY(7px) rotate(90deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bars::after {
  opacity: 0;
}

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

.nav-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 15px;
}

.nav-links a {
  color: var(--ink);
  text-decoration: none;
}

/* WordPress renders wp_nav_menu() as a <ul> — strip bullets and align inline */
ul.nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

ul.nav-links li {
  display: flex;
  align-items: center;
}

ul.nav-links li a {
  color: var(--ink);
  text-decoration: none;
}

ul.nav-links li a:hover,
.nav-links a:hover {
  color: var(--accent);
}

@media (max-width: 760px) {
  .nav {
    position: relative;
    min-height: 70px;
    padding: 12px 18px;
    gap: 12px;
    flex-wrap: wrap;
  }

  .brand {
    max-width: calc(100% - 60px);
    font-size: 18px;
  }

  .menu-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .nav-links,
  ul.nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0;
    padding: 8px 0 6px;
    border-top: 1px solid var(--line);
  }

  .nav-links.is-open,
  ul.nav-links.is-open {
    display: flex;
  }

  .nav-links a,
  ul.nav-links li a {
    display: block;
    width: 100%;
    padding: 12px 2px;
    font-size: 16px;
  }

  ul.nav-links li {
    display: block;
  }
}

.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 72px 22px 42px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  gap: 46px;
  align-items: center;
}

.eyebrow {
  color: var(--warm);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 13px;
}

h1,
h2,
h3 {
  line-height: 1.12;
  margin: 0 0 18px;
}

h1 {
  font-size: clamp(42px, 7vw, 78px);
  max-width: 10ch;
}

h2 {
  font-size: 34px;
}

h3 {
  font-size: 22px;
}

p {
  margin: 0 0 18px;
}

.lead {
  font-size: 21px;
  color: var(--muted);
  max-width: 720px;
}

.actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--accent);
  color: var(--white);
  background: var(--accent);
  text-decoration: none;
  font-weight: 700;
}

.button.secondary {
  color: var(--accent);
  background: transparent;
}

.visual {
  border: 1px solid var(--line);
  background: var(--white);
  padding: 14px;
}

.band {
  background: var(--band);
  border-block: 1px solid var(--line);
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 58px 22px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 22px;
}

.card h3 {
  font-size: 20px;
}

.article-layout {
  max-width: 840px;
  margin: 0 auto;
  padding: 56px 22px;
}

.article-layout h1 {
  max-width: 780px;
  font-size: clamp(38px, 6vw, 62px);
}

.article-layout li {
  margin-bottom: 10px;
}

.article-layout blockquote {
  border-left: 5px solid var(--warm);
  margin: 28px 0;
  padding: 12px 0 12px 22px;
  color: var(--muted);
}

.meta {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 30px;
}

.summary-box {
  border-left: 5px solid var(--warm);
  background: #fff8ef;
  padding: 20px 22px;
  margin: 28px 0;
}

.disclaimer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  padding-top: 22px;
  margin-top: 40px;
}

/* Article hero image */
.article-hero {
  width: 100%;
  max-height: 480px;
  overflow: hidden;
  background: var(--ink);
}

.article-hero img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  object-position: center 40%;
  display: block;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--ink);
  color: var(--white);
  margin-top: 48px;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 36px 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 14px;
}

.footer-nav a {
  color: rgba(255,255,255,0.75);
  text-decoration: none;
}

.footer-nav a:hover {
  color: var(--white);
}

.footer-copyright {
  font-size: 13px;
  color: rgba(255,255,255,0.55);
  margin: 0;
}

.footer-copyright a {
  color: rgba(255,255,255,0.75);
}

.footer-copyright strong a {
  color: var(--white);
}

@media (max-width: 820px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 48px;
  }

  h1 {
    max-width: 12ch;
  }

  .grid {
    grid-template-columns: 1fr;
  }
}