:root {
    --paper: #f6f1e8;
    --paper-deep: #efe6d6;
    --ink: #1c1917;
    --ink-soft: #57534e;
    --primary: #16a34a;
    --primary-hover: #15803d;
    --primary-soft: #dcfce7;
    --card: #fffdf8;
    --border: #e7dcc8;
    --shadow: 0 10px 30px rgba(92, 64, 32, 0.08);
    --radius: 16px;
    --play: #7c3aed;
    --kids: #ea580c;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body:not(.app-page) > *:not(.site-nav):not(.site-footer) {
    width: min(1040px, calc(100% - 40px));
    margin-left: auto;
    margin-right: auto;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.feature-box {
    padding: 14px 16px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--card);
}

.cta a {
    display: inline-block;
    padding: 12px 24px;
    background: var(--primary);
    color: #fff;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 800;
}

.cta a:hover { background: var(--primary-hover); }

a { color: var(--primary); }
img { max-width: 100%; height: auto; }

.site-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px 8px;
    padding: 10px 18px;
    background: rgba(255, 253, 248, 0.92);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 40;
}

.site-nav .logo {
    font-weight: 800;
    color: var(--ink);
    text-decoration: none;
    margin-right: auto;
    font-size: 1.05rem;
    letter-spacing: -0.02em;
}

.site-nav a {
    color: var(--ink-soft);
    text-decoration: none;
    padding: 6px 10px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.92rem;
}

.site-nav a:hover,
.site-nav a.is-active {
    background: var(--primary-soft);
    color: var(--primary-hover);
}

.page {
    max-width: 1040px;
    margin: 0 auto;
    padding: 8px 20px 40px;
}

.page h1,
.page h2,
.page h3 {
    color: var(--ink);
    line-height: 1.25;
}

.page h1 {
    font-size: clamp(1.7rem, 3vw, 2.35rem);
    margin: 18px 0 12px;
    font-weight: 800;
}

.lead {
    font-size: 1.12rem;
    color: var(--ink-soft);
    max-width: 42rem;
}

.hero-studio {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 28px;
    align-items: center;
    margin: 20px 0 8px;
}

.hero-studio img,
.hero-studio svg {
    width: 100%;
    border-radius: 18px;
    box-shadow: var(--shadow);
    background: #fff;
    border: 1px solid var(--border);
}

.cta-block {
    background: linear-gradient(135deg, #22c55e, #15803d);
    color: #fff;
    padding: 28px;
    border-radius: 18px;
    margin: 32px 0;
    text-align: center;
}

.cta-block h2 { color: #fff; margin-top: 0; }
.cta-block p { color: rgba(255, 255, 255, 0.92); }

.cta-btn,
.btn-primary {
    display: inline-block;
    padding: 12px 24px;
    background: var(--primary);
    color: #fff;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 800;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 1rem;
}

.cta-btn:hover,
.btn-primary:hover { background: var(--primary-hover); color: #fff; }

.cta-block .cta-btn {
    background: #fff;
    color: var(--primary-hover);
}

.cta-block .cta-btn:hover { background: var(--primary-soft); color: var(--primary-hover); }

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-secondary {
    background: var(--paper-deep);
    color: var(--ink);
    border: none;
    border-radius: 10px;
    padding: 12px 20px;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
}

.features,
.age-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin: 24px 0;
}

.feature,
.faq-block,
.faq,
.age-card,
.activity,
.gallery-item,
.blog-card,
.tips,
.step {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 18px;
}

.feature h3,
.gallery-item h3,
.blog-card h3 { color: var(--primary-hover); margin: 0 0 8px; }

.steps { counter-reset: step; padding: 0; }
.steps li {
    list-style: none;
    counter-increment: step;
    padding: 12px 16px 12px 56px;
    border-left: 4px solid var(--primary);
    background: var(--card);
    border-radius: 10px;
    margin-bottom: 12px;
    position: relative;
}
.steps li::before {
    content: counter(step);
    position: absolute;
    left: 16px;
    top: 12px;
    width: 28px;
    height: 28px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
}

.site-footer {
    margin-top: 48px;
    padding: 28px 20px 40px;
    text-align: center;
    color: var(--ink-soft);
    border-top: 1px solid var(--border);
    font-size: 0.92rem;
}

.site-footer a { color: var(--primary-hover); text-decoration: none; }
.site-footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 14px;
    margin-top: 12px;
}

.notice {
    background: #fff7ed;
    border: 1px solid #fed7aa;
    color: #9a3412;
    padding: 14px 16px;
    border-radius: 12px;
    margin: 16px 0;
}

.theme-play .cta-block { background: linear-gradient(135deg, #a855f7, #7c3aed); }
.theme-play .cta-block .cta-btn { color: #6d28d9; }
.theme-kids .cta-block { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.theme-kids .cta-block .cta-btn { color: #c2410c; }

.word-box {
    background: #faf5ff;
    border: 2px dashed #a855f7;
    padding: 16px;
    border-radius: 12px;
    margin: 16px 0;
}

.gallery-grid,
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin: 28px 0;
}

.gallery-item,
.blog-card { padding: 0; overflow: hidden; }
.gallery-item img,
.blog-card img { width: 100%; height: 200px; object-fit: cover; display: block; background: #fff; }
.gallery-item-content,
.blog-card-content { padding: 16px; }
.category-filter { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.category-filter button {
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 999px;
    padding: 8px 14px;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
}
.category-filter button.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.blog-card .meta,
.activity .meta { font-size: 0.85rem; color: var(--ink-soft); }
.category-tag {
    display: inline-block;
    padding: 4px 8px;
    background: var(--primary-soft);
    color: var(--primary-hover);
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 800;
}

.safe-list,
.rule {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px 18px;
    margin: 12px 0;
}

.theme-play .feature h3,
.theme-play .page a { color: #6d28d9; }
.theme-play .rule,
.theme-play .word-box { border-color: #c4b5fd; }

.hero-studio figcaption {
    font-size: 0.85rem;
    color: var(--ink-soft);
    margin-top: 8px;
}

.article-body { max-width: 820px; }
.toc { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px 20px; margin: 24px 0; }
.toc h3 { margin: 0 0 8px; }
.lead-box, .tip-box, .audience-block {
    padding: 16px 20px;
    background: var(--primary-soft);
    border-left: 4px solid var(--primary);
    border-radius: 8px;
    margin: 16px 0;
}
table { width: 100%; border-collapse: collapse; margin: 20px 0; }
th, td { padding: 10px 14px; border: 1px solid var(--border); text-align: left; }
th { background: var(--primary-soft); color: var(--primary-hover); }

@media (max-width: 800px) {
    .hero-studio { grid-template-columns: 1fr; }
    .site-nav { position: static; }
}