/* ==========================================================================
   GardensWise — Global Stylesheet
   Mobile-first · accessible · fast · light + dark themes.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,500;9..144,600;9..144,700&family=Inter:wght@400;500;600;700&display=swap');

/* ---------- Design tokens ---------- */
:root {
  --green-900: #0c3d20;
  --green-800: #14532d;
  --green-700: #15803d;
  --green-600: #1f9d52;
  --green-500: #3fbf73;
  --green-400: #6fd99b;
  --green-100: #dcf3e4;
  --green-50:  #f1faf4;

  --amber: #e0852f;
  --amber-soft: #fbe9d3;
  --berry: #b5476b;
  --sky: #2f8fd0;

  --ink: #15201b;
  --ink-soft: #43544c;
  --muted: #6c7d74;
  --line: #e4ece7;
  --bg: #ffffff;
  --bg-alt: #f5faf7;
  --card: #ffffff;
  --card-line: #e7efe9;
  --header-bg: rgba(255, 255, 255, .82);
  --code-bg: #f0f6f2;
  --shadow-sm: 0 2px 8px rgba(12, 61, 32, .06);
  --shadow: 0 12px 34px rgba(12, 61, 32, .10);
  --shadow-lg: 0 24px 60px rgba(12, 61, 32, .16);

  --max: 1160px;
  --radius: 16px;
  --radius-lg: 22px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --display: 'Fraunces', Georgia, "Times New Roman", serif;
}

/* Dark theme — explicit toggle */
[data-theme="dark"] {
  --green-100: #16341f;
  --green-50:  #102a19;
  --ink: #e8f1ea;
  --ink-soft: #b6c7bc;
  --muted: #8aa094;
  --line: #243a2c;
  --bg: #0c140f;
  --bg-alt: #111c15;
  --card: #131f18;
  --card-line: #243a2c;
  --header-bg: rgba(12, 20, 15, .78);
  --code-bg: #16231a;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, .4);
  --shadow: 0 14px 40px rgba(0, 0, 0, .5);
  --shadow-lg: 0 26px 64px rgba(0, 0, 0, .6);
}

/* Honour OS preference until the user chooses explicitly */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --green-100: #16341f;
    --green-50:  #102a19;
    --ink: #e8f1ea;
    --ink-soft: #b6c7bc;
    --muted: #8aa094;
    --line: #243a2c;
    --bg: #0c140f;
    --bg-alt: #111c15;
    --card: #131f18;
    --card-line: #243a2c;
    --header-bg: rgba(12, 20, 15, .78);
    --code-bg: #16231a;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, .4);
    --shadow: 0 14px 40px rgba(0, 0, 0, .5);
    --shadow-lg: 0 26px 64px rgba(0, 0, 0, .6);
  }
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
  transition: background .3s ease, color .3s ease;
}

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

a { color: var(--green-700); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { line-height: 1.18; color: var(--ink); font-weight: 600; letter-spacing: -.01em; }
h1, h2 { font-family: var(--display); font-weight: 600; }
h1 { font-size: clamp(2.1rem, 5.5vw, 3.4rem); margin: 0 0 .4em; letter-spacing: -.02em; }
h2 { font-size: clamp(1.6rem, 3.6vw, 2.3rem); margin: 1.8em 0 .6em; }
h3 { font-size: 1.32rem; margin: 1.5em 0 .4em; }
p { margin: 0 0 1.1em; }

::selection { background: var(--green-400); color: var(--green-900); }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 22px; }
.narrow { max-width: 760px; }

/* Skip link */
.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--green-700);
  color: #fff; padding: 10px 16px; z-index: 1000; border-radius: 0 0 10px 0;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 3px solid var(--green-500); outline-offset: 2px; border-radius: 6px; }

/* ---------- Reading progress bar ---------- */
.progress-bar {
  position: fixed; top: 0; left: 0; height: 3px; width: 0;
  background: linear-gradient(90deg, var(--green-500), var(--green-700));
  z-index: 200; transition: width .1s linear; border-radius: 0 3px 3px 0;
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--header-bg);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px; height: 70px;
}
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 1.22rem; color: var(--ink); letter-spacing: -.02em; }
.brand:hover { text-decoration: none; }
.brand .brand-mark { width: 34px; height: 34px; flex: none; border-radius: 9px; box-shadow: var(--shadow-sm); transition: transform .25s ease; }
.brand:hover .brand-mark { transform: rotate(-8deg) scale(1.05); }

.nav-right { display: flex; align-items: center; gap: 6px; }
.nav-links { display: flex; align-items: center; gap: 2px; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  display: block; padding: 9px 14px; border-radius: 10px; color: var(--ink-soft);
  font-weight: 600; font-size: .96rem; transition: background .15s, color .15s;
}
.nav-links a:hover, .nav-links a[aria-current="page"] {
  background: var(--green-100); color: var(--green-800); text-decoration: none;
}

/* Theme toggle (injected by JS) */
.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: 11px; cursor: pointer;
  background: transparent; border: 1px solid var(--line); color: var(--ink-soft);
  transition: background .15s, color .15s, border-color .15s;
}
.theme-toggle:hover { background: var(--green-100); color: var(--green-800); border-color: var(--green-100); }
.theme-toggle svg { width: 19px; height: 19px; }
.theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

.nav-toggle {
  display: none; background: none; border: 1px solid var(--line); border-radius: 11px;
  width: 44px; height: 44px; cursor: pointer; align-items: center; justify-content: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block; width: 20px; height: 2px; background: var(--ink); position: relative; transition: .25s;
}
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; }
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: absolute; top: 70px; left: 0; right: 0; flex-direction: column;
    align-items: stretch; background: var(--bg); border-bottom: 1px solid var(--line);
    padding: 0 16px; gap: 2px; box-shadow: var(--shadow);
    max-height: 0; overflow: hidden; transition: max-height .28s ease, padding .28s ease;
  }
  .nav-links.open { max-height: 440px; padding-top: 10px; padding-bottom: 16px; }
  .nav-links a { padding: 13px; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(60% 80% at 85% 10%, rgba(63, 191, 115, .18), transparent 60%),
    radial-gradient(50% 70% at 5% 100%, rgba(224, 133, 47, .12), transparent 55%),
    linear-gradient(170deg, var(--green-50), var(--bg) 65%);
  border-bottom: 1px solid var(--line);
  padding: 84px 0 72px;
}
.hero::after {
  content: ""; position: absolute; right: -60px; bottom: -60px; width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(63,191,115,.16), transparent 70%); pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero .eyebrow {
  display: inline-flex; align-items: center; gap: 7px; background: var(--green-100); color: var(--green-800);
  font-weight: 700; font-size: .78rem; letter-spacing: .07em; text-transform: uppercase;
  padding: 7px 14px; border-radius: 999px; margin-bottom: 20px;
}
.hero .eyebrow::before { content: "🌱"; }
.hero h1 { max-width: 16ch; }
.hero p.lead { font-size: 1.24rem; color: var(--ink-soft); max-width: 640px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px; background: var(--green-700); color: #fff; font-weight: 700;
  padding: 14px 28px; border-radius: 999px; transition: transform .15s, box-shadow .2s, background .15s;
  box-shadow: 0 8px 20px rgba(21, 128, 61, .28);
}
.btn:hover { background: var(--green-800); text-decoration: none; transform: translateY(-2px); box-shadow: 0 12px 26px rgba(21, 128, 61, .34); }
.btn.secondary {
  background: var(--card); color: var(--green-700); border: 1.5px solid var(--green-500); box-shadow: var(--shadow-sm);
}
.btn.secondary:hover { background: var(--green-100); color: var(--green-800); }

/* ---------- Trust / stat band ---------- */
.stat-band { border-bottom: 1px solid var(--line); background: var(--bg); }
.stat-band .container { display: flex; flex-wrap: wrap; gap: 14px 40px; justify-content: center; padding-top: 30px; padding-bottom: 30px; }
.stat { text-align: center; min-width: 120px; }
.stat .num { font-family: var(--display); font-size: 2rem; font-weight: 700; color: var(--green-700); line-height: 1; }
.stat .label { font-size: .85rem; color: var(--muted); margin-top: 6px; letter-spacing: .02em; }

/* ---------- Sections ---------- */
.section { padding: 64px 0; }
.section.alt { background: var(--bg-alt); }
.section-head { max-width: 660px; margin-bottom: 36px; }
.section-head .eyebrow {
  display: inline-block; color: var(--green-600); font-weight: 700; font-size: .78rem;
  letter-spacing: .08em; text-transform: uppercase; margin-bottom: 10px;
}
.section-head p { color: var(--muted); margin: 0; font-size: 1.05rem; }

.grid { display: grid; gap: 26px; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); }

/* ---------- Cards ---------- */
.card {
  background: var(--card); border: 1px solid var(--card-line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: var(--green-400); }
.card .thumb { aspect-ratio: 16 / 9; background: var(--green-100); display: block; overflow: hidden; }
.card .thumb svg { width: 100%; height: 100%; transition: transform .35s ease; }
.card:hover .thumb svg { transform: scale(1.06); }
.card .body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.card .tag {
  align-self: flex-start; font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em;
  color: var(--green-700); background: var(--green-100); padding: 4px 10px; border-radius: 999px; margin-bottom: 12px;
}
.card h3 { margin: 0 0 8px; font-size: 1.22rem; font-family: var(--font); font-weight: 700; letter-spacing: -.01em; }
.card h3 a { color: var(--ink); }
.card h3 a:hover { color: var(--green-700); text-decoration: none; }
.card p { color: var(--ink-soft); font-size: .97rem; margin: 0 0 16px; }
.card .meta { margin-top: auto; font-size: .82rem; color: var(--muted); display: flex; align-items: center; gap: 6px; }

/* Category accent colours via tag text */
.card .tag[data-cat="light"] { color: var(--amber); background: var(--amber-soft); }
.card .tag[data-cat="pests"] { color: var(--berry); background: #f7e1ea; }
.card .tag[data-cat="propagation"] { color: var(--sky); background: #def; }
[data-theme="dark"] .card .tag[data-cat="light"] { background: #3a2a14; }
[data-theme="dark"] .card .tag[data-cat="pests"] { background: #3a1d28; }
[data-theme="dark"] .card .tag[data-cat="propagation"] { background: #16293a; }

/* ---------- Feature row (icon list) ---------- */
.feature-grid { display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); margin-top: 12px; }
.feature {
  background: var(--card); border: 1px solid var(--card-line); border-radius: var(--radius); padding: 26px 24px;
}
.feature .ficon {
  width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center;
  background: var(--green-100); color: var(--green-700); font-size: 1.5rem; margin-bottom: 14px;
}
.feature h3 { margin: 0 0 6px; font-size: 1.12rem; }
.feature p { margin: 0; color: var(--ink-soft); font-size: .96rem; }

/* ---------- Article ---------- */
.article-header { padding: 56px 0 28px; background: linear-gradient(170deg, var(--green-50), var(--bg)); border-bottom: 1px solid var(--line); }
.breadcrumbs { font-size: .85rem; color: var(--muted); margin-bottom: 16px; }
.breadcrumbs a { color: var(--green-700); }
.article-meta { color: var(--muted); font-size: .92rem; margin-top: 12px; }
.article-body { padding: 44px 0 60px; font-size: 1.06rem; }
.article-body p, .article-body li { color: var(--ink-soft); }
.article-body ul, .article-body ol { margin: 0 0 1.2em; padding-left: 1.4em; }
.article-body li { margin-bottom: .5em; }
.article-body li::marker { color: var(--green-600); }
.article-body h2 { scroll-margin-top: 96px; }
.article-body strong { color: var(--ink); }
.article-body blockquote {
  border-left: 4px solid var(--green-500); margin: 1.6em 0; padding: .6em 1.3em;
  background: var(--green-50); color: var(--ink); border-radius: 0 10px 10px 0; font-style: italic; font-size: 1.1rem;
}
.article-body figure { margin: 1.6em 0; }
.article-body figcaption { font-size: .85rem; color: var(--muted); text-align: center; margin-top: 8px; }
.callout {
  background: var(--green-50); border: 1px solid var(--green-100); border-radius: var(--radius);
  padding: 20px 24px; margin: 1.9em 0; position: relative;
}
.callout strong { color: var(--green-800); }

.toc {
  background: var(--bg-alt); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 26px; margin: 0 0 34px;
}
.toc p { font-weight: 700; margin: 0 0 10px; color: var(--ink); font-size: .95rem; text-transform: uppercase; letter-spacing: .04em; }
.toc ol { margin: 0; padding-left: 1.2em; }
.toc li { margin-bottom: 6px; }
.toc a { color: var(--green-700); }

table.data { width: 100%; border-collapse: collapse; margin: 1.6em 0; font-size: .96rem; border-radius: 12px; overflow: hidden; box-shadow: var(--shadow-sm); }
table.data th, table.data td { text-align: left; padding: 13px 16px; border-bottom: 1px solid var(--line); }
table.data th { background: var(--green-100); color: var(--green-900); font-weight: 700; }
[data-theme="dark"] table.data th { color: var(--green-400); }
table.data tr:nth-child(even) td { background: var(--bg-alt); }

/* ---------- Ad slots ---------- */
.ad-slot {
  margin: 34px auto; text-align: center; min-height: 90px; max-width: 728px;
  display: flex; align-items: center; justify-content: center; position: relative;
}
.ad-slot::before {
  content: "Advertisement"; font-size: .66rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); position: absolute; transform: translateY(-32px);
}

/* ---------- FAQ ---------- */
.faq details {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 2px 22px; margin-bottom: 12px;
  background: var(--card); transition: border-color .15s, box-shadow .15s;
}
.faq details[open] { border-color: var(--green-400); box-shadow: var(--shadow-sm); }
.faq summary {
  cursor: pointer; font-weight: 700; padding: 16px 0; list-style: none; color: var(--ink);
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.5rem; color: var(--green-600); transition: transform .2s; line-height: 1; }
.faq details[open] summary::after { content: "\2212"; }
.faq details > p { padding-bottom: 18px; margin: 0; color: var(--ink-soft); }

/* ---------- Newsletter / CTA ---------- */
.cta-band {
  background:
    radial-gradient(60% 120% at 100% 0%, rgba(63,191,115,.35), transparent 55%),
    linear-gradient(135deg, var(--green-800), var(--green-700));
  color: #fff; padding: 66px 0; text-align: center;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,.88); max-width: 540px; margin: 0 auto 22px; }
.signup { display: flex; gap: 10px; max-width: 480px; margin: 0 auto; flex-wrap: wrap; justify-content: center; }
.signup input {
  flex: 1; min-width: 220px; padding: 14px 18px; border-radius: 999px; border: none; font-size: 1rem; font-family: inherit;
}
.signup button {
  background: var(--green-900); color: #fff; border: none; padding: 14px 28px; border-radius: 999px;
  font-weight: 700; cursor: pointer; transition: background .15s, transform .15s;
}
.signup button:hover { background: var(--amber); transform: translateY(-2px); }
.form-note { font-size: .82rem; color: rgba(255,255,255,.72); margin-top: 16px; }

/* ---------- Generic forms (contact) ---------- */
.form-grid { display: grid; gap: 16px; max-width: 560px; }
.form-grid label { font-weight: 600; display: block; margin-bottom: 6px; }
.form-grid input, .form-grid textarea {
  width: 100%; padding: 13px 15px; border: 1px solid var(--line); border-radius: 12px; font: inherit;
  background: var(--card); color: var(--ink);
}
.form-grid input:focus, .form-grid textarea:focus { border-color: var(--green-500); outline: none; }
.form-grid button {
  background: var(--green-700); color: #fff; border: none; padding: 14px 30px; border-radius: 999px;
  font-weight: 700; cursor: pointer; justify-self: start; transition: background .15s, transform .15s;
}
.form-grid button:hover { background: var(--green-800); transform: translateY(-2px); }

/* ---------- Footer ---------- */
.site-footer { background: var(--green-900); color: #c4ddcd; padding: 56px 0 30px; margin-top: 0; }
.footer-grid { display: grid; gap: 36px; grid-template-columns: 1.6fr 1fr 1fr; }
.site-footer h4 { color: #fff; font-size: 1rem; margin: 0 0 14px; }
.site-footer p { color: #a9c8b6; }
.site-footer a { color: #c4ddcd; }
.site-footer a:hover { color: #fff; }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: 9px; }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; font-weight: 800; font-size: 1.15rem; color: #fff; }
.footer-brand .brand-mark { width: 30px; height: 30px; border-radius: 8px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.14); margin-top: 36px; padding-top: 22px;
  font-size: .85rem; color: #8fb39e; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; } }

/* ---------- Back to top ---------- */
.to-top {
  position: fixed; right: 22px; bottom: 22px; width: 46px; height: 46px; border-radius: 50%;
  background: var(--green-700); color: #fff; border: none; cursor: pointer; display: grid; place-items: center;
  box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: opacity .25s, transform .25s, visibility .25s, background .15s; z-index: 90;
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--green-800); }
.to-top svg { width: 20px; height: 20px; }

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.prose-page { padding: 56px 0 48px; }
.prose-page h2 { margin-top: 1.6em; }
.updated { font-size: .85rem; color: var(--muted); }
.pill-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0; }
.pill { background: var(--green-100); color: var(--green-800); font-size: .84rem; font-weight: 600; padding: 7px 16px; border-radius: 999px; }