:root {
    --bg: #fdfbf3;
    --fg: #1f2a1d;
    --muted: #6b7864;
    --card: #ffffff;
    --border: #e6e3d4;
    --primary: #2f8a3a;
    --primary-fg: #ffffff;
    --accent: #f4c542;
    --accent-fg: #2a1d05;
    --gold: #f5b800;
    --shadow: 0 4px 20px rgba(40, 60, 30, 0.06);
    --radius: 18px;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #14180f;
        --fg: #f0efe2;
        --muted: #a3a99c;
        --card: #1c211a;
        --border: #2b3128;
        --primary: #5dc46d;
        --primary-fg: #0e1a10;
        --accent: #f5cf5c;
    }
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); font-family: 'Inter', system-ui, sans-serif; line-height: 1.6; -webkit-font-smoothing: antialiased; }
h1,h2,h3,h4 { font-family: 'Fredoka', 'Inter', sans-serif; font-weight: 700; line-height: 1.2; margin: 0 0 .6em; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: color-mix(in oklab, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
.site-header .bar { display: flex; align-items: center; gap: 20px; padding: 14px 0; }
.site-brand { display: flex; align-items: center; gap: 10px; font-family: 'Fredoka', sans-serif; font-weight: 700; font-size: 18px; color: var(--fg); }
.site-brand-mark { width: 36px; height: 36px; border-radius: 12px; background: var(--primary); display: grid; place-items: center; color: var(--primary-fg); font-size: 20px; }
.site-nav { margin-left: auto; display: flex; gap: 4px; flex-wrap: wrap; }
.site-nav a { padding: 8px 12px; border-radius: 8px; font-weight: 500; font-size: 14px; color: var(--fg); }
.site-nav a:hover { background: var(--border); text-decoration: none; }
.nav-toggle { display: none; background: none; border: 0; font-size: 24px; cursor: pointer; color: var(--fg); }
@media (max-width: 720px) {
    .nav-toggle { display: block; }
    .site-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--card); flex-direction: column; padding: 12px; border-bottom: 1px solid var(--border); }
    .site-nav.open { display: flex; }
    .site-nav a { padding: 12px; }
}

/* Hero */
.hero { padding: 60px 0 30px; background: radial-gradient(circle at 10% 10%, color-mix(in oklab, var(--primary) 18%, transparent), transparent 60%), radial-gradient(circle at 90% 30%, color-mix(in oklab, var(--accent) 22%, transparent), transparent 55%); }
.hero .tag { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 999px; background: color-mix(in oklab, var(--gold) 25%, transparent); color: var(--accent-fg); font-size: 12px; font-weight: 600; }
.hero h1 { font-size: clamp(36px, 6vw, 58px); margin-top: 16px; }
.hero h1 .accent { color: var(--primary); }
.hero p.lead { max-width: 600px; color: var(--muted); font-size: 18px; margin: 16px 0 24px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 12px; font-weight: 600; border: 0; cursor: pointer; font-size: 15px; transition: transform .15s, box-shadow .15s; }
.btn-primary { background: var(--primary); color: var(--primary-fg); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px color-mix(in oklab, var(--primary) 30%, transparent); text-decoration: none; }
.btn-outline { background: transparent; color: var(--fg); border: 1px solid var(--border); }
.btn-outline:hover { background: var(--border); text-decoration: none; }

/* Cards / grids */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

/* Tool tile */
.tool-tile { display: block; padding: 20px; border-radius: 16px; background: var(--card); border: 1px solid var(--border); transition: transform .2s, border-color .2s; color: var(--fg); }
.tool-tile:hover { transform: translateY(-3px); border-color: var(--primary); text-decoration: none; }
.tool-tile h3 { font-size: 18px; margin: 8px 0 6px; }
.tool-tile p { color: var(--muted); font-size: 14px; margin: 0; }
.tool-icon { width: 40px; height: 40px; border-radius: 12px; background: color-mix(in oklab, var(--primary) 15%, transparent); display: grid; place-items: center; color: var(--primary); font-size: 20px; }

/* Blog */
.posts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
@media (max-width: 900px) { .posts-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .posts-grid { grid-template-columns: 1fr; } }
.post-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: transform .2s, box-shadow .2s; }
.post-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.post-card a { color: var(--fg); }
.post-card .thumb { aspect-ratio: 16/9; background: var(--border); overflow: hidden; }
.post-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.post-card:hover .thumb img { transform: scale(1.05); }
.post-card .body { padding: 18px; }
.post-card .cat { color: var(--primary); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.post-card h2 { font-size: 18px; margin: 6px 0 8px; line-height: 1.3; }
.post-card p { color: var(--muted); font-size: 14px; margin: 0; }
.post-meta { font-size: 12px; color: var(--muted); margin-top: 12px; }

/* Single post */
.single-hero { aspect-ratio: 21/9; background: var(--border); overflow: hidden; border-radius: var(--radius); margin: 24px 0; }
.single-hero img { width: 100%; height: 100%; object-fit: cover; }
.prose { max-width: 720px; margin: 0 auto; }
.prose h1 { font-size: clamp(28px, 4vw, 42px); }
.prose h2 { font-size: 24px; margin-top: 2em; }
.prose p { margin: 1em 0; color: var(--fg); }
.prose ul { padding-left: 20px; }
.faq details { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 14px 18px; margin-bottom: 10px; }
.faq summary { font-family: 'Fredoka', sans-serif; font-weight: 600; cursor: pointer; }

/* Footer */
.site-footer { margin-top: 80px; border-top: 1px solid var(--border); background: color-mix(in oklab, var(--card) 70%, transparent); padding: 40px 0; color: var(--muted); font-size: 14px; }
.site-footer .cols { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 30px; }
@media (max-width: 720px) { .site-footer .cols { grid-template-columns: 1fr 1fr; } }
.site-footer h4 { color: var(--fg); font-size: 15px; margin-bottom: 12px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--primary); }
.site-footer .legal { border-top: 1px solid var(--border); margin-top: 30px; padding-top: 18px; font-size: 12px; }

/* ----- Calculator widgets ----- */
.gagc { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin: 24px 0; }
.gagc h3 { font-family: 'Fredoka', sans-serif; }
.gagc label { display: block; font-size: 13px; font-weight: 600; margin: 12px 0 6px; }
.gagc input[type=number], .gagc input[type=text], .gagc select { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg); color: var(--fg); font-size: 14px; }
.gagc input:focus, .gagc select:focus { outline: 2px solid var(--primary); outline-offset: 1px; }
.gagc-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.gagc-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.gagc-chip { padding: 6px 11px; border-radius: 999px; font-size: 12px; font-weight: 600; background: var(--bg); border: 1px solid var(--border); cursor: pointer; transition: all .15s; }
.gagc-chip:hover { transform: translateY(-1px); }
.gagc-chip.on { background: var(--primary); color: var(--primary-fg); border-color: var(--primary); }
.gagc-crop-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); gap: 8px; max-height: 280px; overflow-y: auto; padding: 4px; margin-top: 8px; }
.gagc-crop-btn { aspect-ratio: 1; border: 2px solid var(--border); background: var(--bg); border-radius: 14px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; padding: 6px; cursor: pointer; font-size: 11px; font-weight: 500; color: var(--fg); transition: all .15s; }
.gagc-crop-btn:hover { border-color: color-mix(in oklab, var(--primary) 60%, transparent); transform: translateY(-2px); }
.gagc-crop-btn.sel { border-color: var(--primary); background: color-mix(in oklab, var(--primary) 12%, transparent); }
.gagc-crop-btn .emoji { font-size: 22px; }
.gagc-result { margin-top: 20px; padding: 22px; background: linear-gradient(135deg, color-mix(in oklab, var(--primary) 12%, transparent), color-mix(in oklab, var(--accent) 14%, transparent)); border-radius: 16px; border: 1px solid var(--border); }
.gagc-result .total { font-family: 'Fredoka', sans-serif; font-size: 44px; font-weight: 700; color: var(--primary); line-height: 1; }
.gagc-result .small { font-size: 13px; color: var(--muted); margin-top: 6px; }
.gagc-breakdown { margin-top: 14px; font-size: 13px; color: var(--muted); display: grid; gap: 4px; }
.gagc-breakdown div { display: flex; justify-content: space-between; }
.gagc-search { position: relative; }
.gagc-search input { padding-left: 36px; }
.gagc-search::before { content: "🔍"; position: absolute; left: 12px; top: 50%; transform: translateY(-50%); font-size: 14px; opacity: .6; }

/* helpers */
.hide { display: none !important; }
.flex { display: flex; }
.gap-2 { gap: 8px; }
.muted { color: var(--muted); }
.text-center { text-align: center; }
.mt-2 { margin-top: 16px; } .mt-4 { margin-top: 28px; } .mt-6 { margin-top: 48px; } .mb-4 { margin-bottom: 28px; }