/* =========================================================
   花枝鼠 (Fancy Rat) — Global Stylesheet
   Design tokens: primary #247869, bg #f7f9f9, card white,
   warning #d63031, card radius 12px, button radius 8px
   ========================================================= */

:root {
  --color-primary: #247869;
  --color-primary-dark: #1a5a4f;
  --color-primary-light: #e6f2ef;
  --color-bg: #f7f9f9;
  --color-card: #ffffff;
  --color-text: #1f2a2d;
  --color-text-muted: #52605e;
  --color-border: #e3e8e9;
  --color-warning: #d63031;
  --color-warning-bg: #fdecec;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 6px 18px rgba(0,0,0,.08);
  --maxw: 1180px;
  --header-h: 64px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial,
    "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 16px;
  min-height: 100vh;
}

img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 16px; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}
.nav-wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--header-h); gap: 12px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 18px; color: var(--color-primary-dark);
}
.brand-logo {
  width: 36px; height: 36px; border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), #4aa592);
  display: grid; place-items: center; color: #fff; font-size: 18px; flex: 0 0 auto;
}
.nav-links {
  display: flex; align-items: center; gap: 4px;
  list-style: none;
}
.nav-links a {
  display: block; padding: 10px 12px; border-radius: var(--radius-btn);
  color: var(--color-text); font-size: 14px; font-weight: 500;
}
.nav-links a:hover { background: var(--color-primary-light); color: var(--color-primary-dark); text-decoration: none; }
.nav-links a.active { background: var(--color-primary-light); color: var(--color-primary-dark); }

.lang-switcher {
  display: flex; gap: 4px; background: var(--color-bg);
  padding: 3px; border-radius: var(--radius-btn); border: 1px solid var(--color-border);
}
.lang-switcher button {
  border: none; background: transparent; cursor: pointer;
  padding: 6px 10px; border-radius: 5px; font-size: 13px; font-weight: 600;
  color: var(--color-text-muted);
}
.lang-switcher button.active { background: var(--color-primary); color: #fff; }

.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 44px; height: 44px; border-radius: var(--radius-btn);
  color: var(--color-primary-dark); font-size: 22px;
}

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: var(--header-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--color-card); border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md); padding: 8px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 12px; border-bottom: 1px solid var(--color-border); }
  .nav-links a:last-child { border-bottom: none; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: var(--radius-btn);
  font-size: 15px; font-weight: 600; cursor: pointer;
  border: 1px solid transparent; transition: all .2s;
  min-height: 44px; line-height: 1.2;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); text-decoration: none; }
.btn-outline { background: #fff; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary-light); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--color-text); }
.btn-ghost:hover { background: var(--color-primary-light); }
.btn-warn { background: var(--color-warning); color: #fff; }
.btn-sm { padding: 7px 14px; font-size: 13px; min-height: 36px; }

/* ---------- Cards ---------- */
.card {
  background: var(--color-card); border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm); overflow: hidden;
  border: 1px solid var(--color-border);
}
.card-pad { padding: 20px; }
.card-photo {
  position: relative; min-height: 180px; border-radius: var(--radius-card);
  background-color: #244741;
  background-image: linear-gradient(135deg, #1d3b36, #2f554c);
  background-size: cover; background-position: center;
  display: flex; flex-direction: column; justify-content: flex-end;
  overflow: hidden;
}
.card-photo::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.65) 0%, rgba(0,0,0,.15) 55%, transparent 100%);
}
.card-photo .card-body {
  position: relative; z-index: 2; padding: 16px; color: #fff;
}
.card-photo .card-body h3 { font-size: 18px; margin-bottom: 4px; }
.card-photo .card-body p { font-size: 13px; opacity: .92; line-height: 1.5; }
.card-photo .tag {
  display: inline-block; background: rgba(255,255,255,.22);
  padding: 2px 10px; border-radius: 999px; font-size: 12px; margin-bottom: 8px;
}

.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* ---------- Square tool cards (tool station) ---------- */
.tool-grid {
  display: grid; gap: 18px;
  grid-template-columns: repeat(4, 1fr);
}
@media (max-width: 900px) { .tool-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px) { .tool-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 380px) { .tool-grid { grid-template-columns: 1fr; } }

.card-square {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-card);
  background-color: #244741;
  background-image: linear-gradient(135deg, #1d3b36, #2f554c);
  background-size: cover; background-position: center;
  overflow: hidden;
  display: flex; flex-direction: column; justify-content: flex-end;
  text-decoration: none; color: #fff;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
}
.card-square::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.72) 0%, rgba(0,0,0,.2) 55%, transparent 100%);
}
.card-square:hover { transform: translateY(-4px); box-shadow: 0 10px 24px rgba(36,120,105,.22); }
.card-square .card-body { position: relative; z-index: 2; padding: 16px; }
.card-square .tag {
  display: inline-block; background: rgba(255,255,255,.22);
  padding: 2px 10px; border-radius: 999px; font-size: 12px; margin-bottom: 8px;
}
.card-square .card-body h3 { font-size: 17px; margin-bottom: 4px; }
.card-square .card-body p { font-size: 12.5px; opacity: .92; line-height: 1.45; margin: 0; }

/* Category color tags on tool cards */
.tag-cat { font-weight: 700; letter-spacing: .3px; }
.tag-cat-health { background: #c0392b; }
.tag-cat-diet { background: #8a6508; }
.tag-cat-housing { background: #1f6fa8; }
.tag-cat-behavior { background: #6f3c98; }
.tag-cat-planning { background: #0f7a66; }

.tool-group { margin-bottom: 34px; }
.tool-group-title {
  font-size: 17px; color: var(--color-primary-dark);
  margin: 0 0 4px; display: flex; align-items: center; gap: 10px;
}
.tool-group-title::after {
  content: ""; flex: 1; height: 1px; background: var(--color-border);
}
.tool-group-sub { color: var(--color-text-muted); font-size: 13px; margin-bottom: 14px; }

/* ---------- Typography ---------- */
.page-hero {
  /* dark fallback guarantees readable white text even if photo fails/JS hasn't run */
  background-color: #16483f;
  background-image: linear-gradient(135deg, #16483f, #247869);
  color: #fff; padding: 56px 0 44px; position: relative; overflow: hidden;
}
/* permanent dark scrim over photo heroes: white text always readable */
.page-hero::before {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(115deg, rgba(10,38,33,.85) 0%, rgba(16,64,55,.70) 45%, rgba(16,64,55,.55) 100%);
}
.page-hero > .container { position: relative; z-index: 2; }
.page-hero h1 { font-size: 30px; margin-bottom: 10px; text-shadow: 0 1px 3px rgba(0,0,0,.35); }
.page-hero p { opacity: .97; max-width: 640px; font-size: 16px; text-shadow: 0 1px 2px rgba(0,0,0,.3); }
.btn-light-outline {
  background: rgba(255,255,255,.16);
  color: #fff; border: 1.5px solid rgba(255,255,255,.85);
  font-weight: 600;
}
.btn-light-outline:hover { background: rgba(255,255,255,.28); color: #fff; text-decoration: none; }

.section { padding: 44px 0; }
.section-title { font-size: 24px; margin-bottom: 6px; color: var(--color-primary-dark); }
.section-sub { color: var(--color-text-muted); margin-bottom: 22px; }

.article { max-width: 820px; margin: 0 auto; }
.article h2 { font-size: 22px; margin: 28px 0 12px; color: var(--color-primary-dark); }
.article h3 { font-size: 18px; margin: 22px 0 8px; }
.article p { margin-bottom: 14px; }
.article ul, .article ol { margin: 0 0 16px 22px; }
.article li { margin-bottom: 6px; }
.article blockquote {
  border-left: 4px solid var(--color-primary); background: var(--color-primary-light);
  padding: 12px 16px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 16px 0; color: var(--color-text);
}
.callout-warn {
  background: var(--color-warning-bg); border: 1px solid #f5c4c4;
  border-left: 4px solid var(--color-warning);
  padding: 12px 16px; border-radius: var(--radius-sm); margin: 16px 0; color: #7a1f1f;
}

/* ---------- Forms ---------- */
input, select, textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--color-border);
  border-radius: var(--radius-btn); font-size: 15px; font-family: inherit;
  background: #fff; color: var(--color-text);
  min-height: 44px;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}
label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--color-text); }
.form-row { margin-bottom: 14px; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
@media (max-width: 560px) { .form-grid { grid-template-columns: 1fr; } }

/* ---------- Tables / lists ---------- */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td { padding: 10px 12px; border-bottom: 1px solid var(--color-border); text-align: left; }
.table th { background: var(--color-primary-light); color: var(--color-primary-dark); font-weight: 600; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-ok { background: var(--color-primary-light); color: var(--color-primary-dark); }
.badge-warn { background: var(--color-warning-bg); color: #a92424; }

/* ---------- Ad slots ---------- */
.ad-slot {
  background: #f0f3f3; border: 1px dashed #c5d0ce;
  border-radius: var(--radius-card); padding: 18px; text-align: center;
  color: var(--color-text-muted); font-size: 13px; margin: 24px 0;
  min-height: 100px; display: grid; place-items: center;
}
.ad-slot::before { content: "Advertisement"; font-weight: 600; color: #5f6f6e; }

/* ---------- Footer ---------- */
.site-footer {
  background: #1a2a2d; color: #c8d1d2; margin-top: 60px;
  padding: 40px 0 24px;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 { color: #fff; margin-bottom: 12px; font-size: 15px; }
.site-footer a { color: #c8d1d2; }
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: 8px; }
.footer-disclaimer {
  border-top: 1px solid #2d4043; margin-top: 24px; padding-top: 18px;
  font-size: 13px; color: #95a4a6; text-align: center; line-height: 1.8;
}
.footer-bottom { text-align: center; margin-top: 16px; font-size: 12px; color: #93a2a4; }

/* ---------- Floating buttons ---------- */
.float-actions {
  position: fixed; right: 18px; bottom: 22px; z-index: 90;
  display: flex; flex-direction: column; gap: 10px;
}
.fab {
  width: 50px; height: 50px; border-radius: 50%; border: none; cursor: pointer;
  background: var(--color-primary); color: #fff; font-size: 20px;
  box-shadow: var(--shadow-md); display: grid; place-items: center;
  transition: transform .15s, opacity .2s;
}
.fab:hover { transform: translateY(-2px); }
.fab.bookmark.on { background: var(--color-warning); }
.fab.to-top { opacity: 0; pointer-events: none; }
.fab.to-top.show { opacity: 1; pointer-events: auto; }

.fav-panel {
  position: fixed; right: 78px; bottom: 22px; width: 280px; max-width: calc(100vw - 100px);
  background: var(--color-card); border-radius: var(--radius-card);
  box-shadow: var(--shadow-md); border: 1px solid var(--color-border);
  display: none; z-index: 95; overflow: hidden;
}
.fav-panel.open { display: block; }
.fav-panel h4 { padding: 12px 16px; border-bottom: 1px solid var(--color-border); font-size: 14px; background: var(--color-primary-light); color: var(--color-primary-dark); }
.fav-panel ul { list-style: none; max-height: 280px; overflow-y: auto; }
.fav-panel li { display: flex; justify-content: space-between; align-items: center; padding: 10px 16px; border-bottom: 1px solid var(--color-border); gap: 8px; }
.fav-panel li a { font-size: 13px; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fav-panel .rm { background: none; border: none; color: var(--color-warning); cursor: pointer; font-size: 16px; padding: 0 4px; }
.fav-empty { padding: 18px; text-align: center; color: var(--color-text-muted); font-size: 13px; }

/* ---------- Misc ---------- */
.text-muted { color: var(--color-text-muted); }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; } .mt-2 { margin-top: 12px; } .mt-4 { margin-top: 24px; }
.mb-2 { margin-bottom: 12px; } .mb-4 { margin-bottom: 24px; }
.flex { display: flex; gap: 12px; }
.flex-between { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }

.member-teaser {
  background: linear-gradient(135deg, #fff8e7, #ffe9c2);
  border: 1px solid #f0d28a; border-radius: var(--radius-card);
  padding: 22px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
}
.member-teaser .badge-vip { background: #b8860b; color: #fff; padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 700; }

.tool-result {
  background: var(--color-primary-light); border: 1px solid #b9d9d0;
  border-radius: var(--radius-card); padding: 18px; margin: 18px 0;
}
.tool-result .big { font-size: 28px; font-weight: 700; color: var(--color-primary-dark); }

[hidden] { display: none !important; }

/* print */
@media print { .float-actions, .site-header, .ad-slot { display: none; } }