:root {
  --sjk-primary: #0077B6;
  --sjk-primary-dark: #023E8A;
  --sjk-secondary: #00B4D8;
  --sjk-accent: #FFB703;
  --sjk-accent-dark: #FB8500;
  --sjk-bg: #F0F8FF;
  --sjk-card: #FFFFFF;
  --sjk-text: #14213D;
  --sjk-muted: #5A6B85;
  --sjk-border: #D6E4F0;
  --sjk-success: #2A9D8F;
  --sjk-danger: #E63946;
  --sjk-star: #FFB703;
  --sjk-shadow: 0 4px 12px rgba(0, 119, 182, 0.08);
  --sjk-radius: 12px;
}

.sjk-tool {
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  color: var(--sjk-text);
  background: var(--sjk-bg);
  padding: 24px 16px;
  max-width: 880px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===== Hero ===== */
.sjk-hero {
  text-align: center;
  background: linear-gradient(135deg, var(--sjk-primary) 0%, var(--sjk-secondary) 100%);
  color: #fff;
  padding: 36px 20px;
  border-radius: var(--sjk-radius);
  margin-bottom: 20px;
  box-shadow: var(--sjk-shadow);
}
.sjk-hero-emoji { font-size: 56px; line-height: 1; margin-bottom: 8px; }
.sjk-hero h1 { font-size: 26px; margin: 0 0 12px; font-weight: 800; letter-spacing: 0.02em; }
.sjk-hero-lead { font-size: 16px; margin: 0 0 18px; opacity: 0.95; }
.sjk-hero-lead strong { background: var(--sjk-accent); color: var(--sjk-text); padding: 2px 8px; border-radius: 4px; font-weight: 800; }
.sjk-time-row { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.sjk-time-pill { background: rgba(255,255,255,0.18); border: 1px solid rgba(255,255,255,0.4); padding: 4px 12px; border-radius: 999px; font-size: 13px; font-weight: 600; }
.sjk-hero-note { font-size: 13px; opacity: 0.85; margin-top: 12px; }

/* ===== Intro (SEO本文) ===== */
.sjk-intro {
  background: var(--sjk-card);
  padding: 18px 20px;
  border-radius: var(--sjk-radius);
  margin-bottom: 20px;
  box-shadow: var(--sjk-shadow);
  font-size: 14.5px;
  color: var(--sjk-text);
}
.sjk-intro p { margin: 0 0 8px; }
.sjk-intro p:last-child { margin-bottom: 0; }

/* ===== Step ===== */
.sjk-step { background: var(--sjk-card); padding: 24px 20px; border-radius: var(--sjk-radius); margin-bottom: 20px; box-shadow: var(--sjk-shadow); }
.sjk-step-head { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.sjk-step-num { background: var(--sjk-primary); color: #fff; font-weight: 800; font-size: 14px; padding: 4px 10px; border-radius: 999px; letter-spacing: 0.05em; }
.sjk-step-title { font-size: 20px; font-weight: 800; margin: 0; }

/* ===== Options grid ===== */
.sjk-options { display: grid; gap: 10px; }
.sjk-options.grid-2 { grid-template-columns: repeat(2, 1fr); }
.sjk-options.grid-3 { grid-template-columns: repeat(3, 1fr); }
.sjk-options.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 600px) {
  .sjk-options.grid-3, .sjk-options.grid-4 { grid-template-columns: repeat(2, 1fr); }
}
.sjk-option { position: relative; display: block; cursor: pointer; }
.sjk-option input { position: absolute; opacity: 0; pointer-events: none; }
.sjk-option-body { display: flex; align-items: center; justify-content: center; gap: 6px; padding: 14px 10px; border: 2px solid var(--sjk-border); border-radius: 10px; background: #fff; font-weight: 600; text-align: center; font-size: 15px; transition: all 0.15s ease; min-height: 56px; line-height: 1.3; }
.sjk-option:hover .sjk-option-body { border-color: var(--sjk-secondary); background: #F7FBFE; }
.sjk-option input:checked + .sjk-option-body { border-color: var(--sjk-primary); background: var(--sjk-primary); color: #fff; box-shadow: 0 4px 10px rgba(0, 119, 182, 0.25); }
.sjk-option-emoji { font-size: 18px; }
.sjk-options.difficulty .sjk-option-body { flex-direction: column; padding: 16px 8px; min-height: 88px; }
.sjk-difficulty-stars { font-size: 18px; color: var(--sjk-star); letter-spacing: 2px; margin-bottom: 4px; }
.sjk-option input:checked + .sjk-option-body .sjk-difficulty-stars { color: #fff; }
.sjk-difficulty-label { font-size: 13px; }

/* ===== Generate button ===== */
.sjk-generate-wrap { text-align: center; margin: 28px 0; }
.sjk-generate { background: var(--sjk-accent); color: var(--sjk-text); border: none; font-size: 18px; font-weight: 800; padding: 16px 36px; border-radius: 999px; cursor: pointer; box-shadow: 0 6px 16px rgba(251, 133, 0, 0.3); transition: all 0.15s ease; letter-spacing: 0.04em; }
.sjk-generate:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(251, 133, 0, 0.4); }
.sjk-generate:disabled { background: #CFD8DC; color: #90A4AE; cursor: not-allowed; box-shadow: none; }
.sjk-reroll-hint { font-size: 13px; color: var(--sjk-muted); margin-top: 10px; }

/* ===== Result ===== */
.sjk-result { background: var(--sjk-card); border-radius: var(--sjk-radius); padding: 28px 22px; box-shadow: var(--sjk-shadow); margin-bottom: 28px; border: 3px solid var(--sjk-primary); }
.sjk-result-banner { background: var(--sjk-accent); color: var(--sjk-text); text-align: center; padding: 8px 12px; border-radius: 999px; font-weight: 800; font-size: 14px; letter-spacing: 0.05em; display: inline-block; margin-bottom: 12px; }
.sjk-result h2 { font-size: 25px; margin: 6px 0 8px; color: var(--sjk-primary-dark); font-weight: 800; line-height: 1.4; }
.sjk-result-angle { display:inline-block; background: var(--sjk-secondary); color:#fff; font-size:12px; font-weight:700; padding:2px 10px; border-radius:999px; margin-bottom:8px; }
.sjk-result-meta { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 22px; font-size: 14px; }
.sjk-meta-chip { background: var(--sjk-bg); padding: 4px 12px; border-radius: 999px; font-weight: 600; color: var(--sjk-primary-dark); }
.sjk-meta-chip-difficulty { color: var(--sjk-accent-dark); }

/* ===== Photo ===== */
.sjk-photo-wrap { margin-bottom: 22px; border-radius: 10px; overflow: hidden; border: 2px solid var(--sjk-border); }
.sjk-species-photo { display: block; width: 100%; height: auto; max-height: 320px; object-fit: cover; }
.sjk-photo-caption { font-size: 12px; color: var(--sjk-muted); padding: 6px 10px; background: var(--sjk-bg); }
.sjk-photo-wrap.no-img { border-style: dashed; }
.sjk-photo-wrap.no-img .sjk-species-photo { display: none; }
.sjk-photo-fallback { display: none; padding: 28px 16px; text-align: center; color: var(--sjk-muted); font-size: 14px; background: repeating-linear-gradient(45deg,#F8FAFC,#F8FAFC 10px,#fff 10px,#fff 20px); }
.sjk-photo-wrap.no-img .sjk-photo-fallback { display: block; }

/* ===== Score ===== */
.sjk-score-box { background: linear-gradient(135deg,#FFF8E1 0%,#FFFFFF 100%); border: 2px solid var(--sjk-accent); border-radius: 10px; padding: 16px 18px; margin-bottom: 22px; }
.sjk-score-headline { text-align: center; margin-bottom: 12px; }
.sjk-score-stars { font-size: 26px; color: var(--sjk-star); letter-spacing: 3px; }
.sjk-score-stars .empty { color: #E0E0E0; }
.sjk-score-points { font-size: 30px; font-weight: 800; color: var(--sjk-accent-dark); margin-top: 2px; }
.sjk-score-points small { font-size: 16px; }
.sjk-score-label { font-size: 13px; color: var(--sjk-muted); }
.sjk-score-rows { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 16px; }
@media (max-width:480px){ .sjk-score-rows { grid-template-columns: 1fr; } }
.sjk-score-row { display: flex; justify-content: space-between; align-items: center; font-size: 14px; }
.sjk-score-row .name { font-weight: 700; }
.sjk-score-row .stars { color: var(--sjk-star); letter-spacing: 1px; font-size: 16px; }
.sjk-score-row .stars .empty { color: #E0E0E0; }

/* ===== Result sections ===== */
.sjk-result-section { margin-bottom: 22px; }
.sjk-result-section h3 { font-size: 17px; font-weight: 800; color: var(--sjk-primary-dark); margin: 0 0 10px; padding-bottom: 6px; border-bottom: 2px solid var(--sjk-border); display: flex; align-items: center; gap: 8px; }
.sjk-result-section h3::before { content: ""; width: 4px; height: 18px; background: var(--sjk-primary); border-radius: 2px; }

.sjk-checklist { list-style: none; padding: 0; margin: 0; }
.sjk-checklist li { display: flex; align-items: center; gap: 10px; padding: 8px 4px; border-bottom: 1px dashed var(--sjk-border); font-size: 15px; }
.sjk-checklist li:last-child { border-bottom: none; }
.sjk-checklist li::before { content: ""; display: inline-block; width: 22px; height: 22px; border: 2px solid var(--sjk-primary); border-radius: 4px; flex-shrink: 0; }

/* Aquariums */
.sjk-aquarium-card { background: var(--sjk-bg); padding: 14px 16px; border-radius: 8px; border-left: 4px solid var(--sjk-secondary); }
.sjk-aquarium-card.not-kept { border-left-color: var(--sjk-danger); }
.sjk-aquarium-status { font-weight: 700; margin-bottom: 8px; font-size: 14px; }
.sjk-aquarium-status.ok { color: var(--sjk-success); }
.sjk-aquarium-status.ng { color: var(--sjk-danger); }
.sjk-aquarium-list { margin: 0; padding-left: 0; list-style: none; }
.sjk-aquarium-list li { padding: 4px 0; font-size: 14px; }
.sjk-aquarium-list strong { color: var(--sjk-primary-dark); }
.sjk-aquarium-alt-intro { font-size: 13px; color: var(--sjk-muted); margin: 6px 0; }

/* Recommended aquarium */
.sjk-aqua-rec { margin-top: 12px; background:#fff; border: 2px solid var(--sjk-accent); border-radius: 10px; padding: 14px 16px; }
.sjk-aqua-rec-head { font-size: 13px; color: var(--sjk-muted); font-weight: 700; }
.sjk-aqua-rec-stars { color: var(--sjk-star); font-size: 18px; letter-spacing: 1px; }
.sjk-aqua-rec-name { font-size: 18px; font-weight: 800; color: var(--sjk-primary-dark); margin: 2px 0 8px; }
.sjk-aqua-rec-reasons { list-style: none; padding: 0; margin: 0 0 10px; }
.sjk-aqua-rec-reasons li { font-size: 14px; padding: 2px 0; }
.sjk-aqua-rec-reasons li::before { content: "✓ "; color: var(--sjk-success); font-weight: 800; }
.sjk-aqua-rec-link { display: inline-flex; align-items:center; gap:6px; background: var(--sjk-secondary); color:#fff; text-decoration:none; font-weight:700; font-size:13px; padding:8px 14px; border-radius:999px; }
.sjk-aqua-rec-link:hover { background: var(--sjk-primary); }

/* Drawing / compare / experiment */
.sjk-drawing-area { background: repeating-linear-gradient(45deg,#F8FAFC,#F8FAFC 10px,#FFFFFF 10px,#FFFFFF 20px); border: 2px dashed var(--sjk-border); border-radius: 8px; min-height: 180px; display: flex; align-items: center; justify-content: center; color: var(--sjk-muted); font-size: 14px; font-weight: 600; }

/* Summary template */
.sjk-summary-template { display: grid; gap: 12px; }
.sjk-summary-block { background: var(--sjk-bg); padding: 12px 16px; border-radius: 8px; border-left: 4px solid var(--sjk-accent); }
.sjk-summary-block h4 { margin: 0 0 6px; font-size: 15px; color: var(--sjk-accent-dark); font-weight: 800; }
.sjk-summary-line { height: 24px; border-bottom: 1px solid var(--sjk-border); margin-bottom: 4px; }

/* Encyclopedia / quiz link */
.sjk-link-btn { display: inline-flex; align-items: center; gap: 6px; background: var(--sjk-primary); color: #fff; padding: 10px 18px; border-radius: 999px; text-decoration: none; font-weight: 700; font-size: 14px; transition: all 0.15s ease; }
.sjk-link-btn:hover { background: var(--sjk-primary-dark); transform: translateY(-1px); }
.sjk-link-btn.quiz { background: var(--sjk-accent-dark); }
.sjk-link-btn.quiz:hover { background: #E07000; }
.sjk-link-btn.soon { background: #CFD8DC; color: #78909C; cursor: default; pointer-events: none; }
.sjk-bonus-cta.soon { background: #E0E0E0; color: #9E9E9E; cursor: default; }

/* Fact box */
.sjk-fact-box { background: #FFF8E1; border-left: 4px solid var(--sjk-accent); padding: 12px 16px; border-radius: 6px; font-size: 14px; color: var(--sjk-text); }
.sjk-fact-box strong { color: var(--sjk-accent-dark); }

/* ===== Roadmap (一本道) ===== */
.sjk-roadmap { background: var(--sjk-bg); border-radius: 10px; padding: 16px; }
.sjk-roadmap-steps { display: flex; flex-direction: column; gap: 0; }
.sjk-roadmap-step { display: flex; align-items: center; gap: 12px; padding: 8px 0; }
.sjk-roadmap-num { flex-shrink:0; width: 30px; height: 30px; border-radius: 50%; background: var(--sjk-primary); color:#fff; font-weight: 800; font-size: 14px; display:flex; align-items:center; justify-content:center; }
.sjk-roadmap-step.done .sjk-roadmap-num { background: var(--sjk-success); }
.sjk-roadmap-step.goal .sjk-roadmap-num { background: var(--sjk-accent-dark); }
.sjk-roadmap-body { font-size: 14px; font-weight: 600; }
.sjk-roadmap-body small { display:block; font-weight: 400; color: var(--sjk-muted); font-size: 12px; }
.sjk-roadmap-connector { width: 30px; text-align: center; color: var(--sjk-border); font-weight: 800; line-height: 0.6; }

/* ===== Certificate ===== */
.sjk-cert-trigger { background:#fff; border: 2px dashed var(--sjk-accent); border-radius: 10px; padding: 16px; margin-top: 12px; text-align:center; }
.sjk-cert-trigger label { font-weight: 700; font-size: 14px; display:block; margin-bottom: 8px; }
.sjk-cert-input { font-size: 16px; padding: 10px 14px; border: 2px solid var(--sjk-border); border-radius: 8px; width: 100%; max-width: 280px; text-align:center; }
.sjk-cert-input:focus { outline:none; border-color: var(--sjk-primary); }
.sjk-cert-make { margin-top: 10px; background: var(--sjk-accent-dark); color:#fff; border:none; font-weight:800; font-size:15px; padding:12px 26px; border-radius:999px; cursor:pointer; }
.sjk-cert-make:hover { background:#E07000; }

.sjk-cert { display:none; margin: 0 auto 28px; max-width: 720px; background: #fff; border: 6px double var(--sjk-accent-dark); border-radius: 14px; padding: 40px 32px; text-align:center; position: relative; box-shadow: var(--sjk-shadow); }
.sjk-cert.show { display:block; }
.sjk-cert::before, .sjk-cert::after { content:"🌊"; position:absolute; font-size: 22px; opacity: .5; }
.sjk-cert::before { top: 12px; left: 16px; }
.sjk-cert::after { bottom: 12px; right: 16px; }
.sjk-cert-emoji { font-size: 60px; line-height: 1; }
.sjk-cert-title { font-size: 30px; font-weight: 800; color: var(--sjk-primary-dark); letter-spacing: .15em; margin: 8px 0 4px; }
.sjk-cert-sub { font-size: 13px; color: var(--sjk-muted); letter-spacing:.2em; margin-bottom: 22px; }
.sjk-cert-name { font-size: 28px; font-weight: 800; border-bottom: 2px solid var(--sjk-text); display:inline-block; padding: 0 24px 6px; margin-bottom: 6px; min-width: 220px; }
.sjk-cert-name-suffix { font-size: 18px; color: var(--sjk-muted); }
.sjk-cert-body { font-size: 16px; margin: 22px 0; line-height: 2; }
.sjk-cert-body strong { color: var(--sjk-accent-dark); font-size: 20px; }
.sjk-cert-seal { width: 92px; height: 92px; border-radius: 50%; border: 3px solid var(--sjk-danger); color: var(--sjk-danger); display:flex; align-items:center; justify-content:center; flex-direction:column; font-weight: 800; margin: 18px auto 0; transform: rotate(-8deg); font-size: 12px; line-height: 1.3; }
.sjk-cert-seal .big { font-size: 24px; }
.sjk-cert-date { font-size: 13px; color: var(--sjk-muted); margin-top: 18px; }
.sjk-cert-actions { text-align:center; margin: -8px 0 28px; }

/* ===== Action buttons ===== */
.sjk-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 24px; }
.sjk-btn { border: none; padding: 12px 24px; font-weight: 700; font-size: 15px; border-radius: 999px; cursor: pointer; transition: all 0.15s ease; }
.sjk-btn-print { background: var(--sjk-primary); color: #fff; }
.sjk-btn-print:hover { background: var(--sjk-primary-dark); }
.sjk-btn-reset { background: #fff; color: var(--sjk-text); border: 2px solid var(--sjk-border); }
.sjk-btn-reset:hover { background: var(--sjk-bg); }
.sjk-btn-cert { background: var(--sjk-accent-dark); color:#fff; }
.sjk-btn-cert:hover { background:#E07000; }

/* ===== Static theme list (SEO + 内部リンク) ===== */
.sjk-theme-links { background: var(--sjk-card); padding: 22px 20px; border-radius: var(--sjk-radius); margin-bottom: 20px; box-shadow: var(--sjk-shadow); }
.sjk-theme-links h2 { font-size: 19px; font-weight: 800; margin: 0 0 6px; color: var(--sjk-primary-dark); }
.sjk-theme-links p { font-size: 13.5px; color: var(--sjk-muted); margin: 0 0 14px; }
.sjk-theme-link-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(150px,1fr)); gap: 8px; }
.sjk-theme-link { display:block; background: var(--sjk-bg); border: 1px solid var(--sjk-border); border-radius: 8px; padding: 10px 12px; text-decoration:none; color: var(--sjk-text); font-weight: 600; font-size: 14px; transition: all .15s ease; }
.sjk-theme-link:hover { border-color: var(--sjk-primary); background:#fff; }
.sjk-theme-link span { color: var(--sjk-muted); font-size: 12px; display:block; }
.sjk-bigcta { display:block; text-align:center; margin-top:14px; background: var(--sjk-accent); color: var(--sjk-text); font-weight:800; padding:12px; border-radius:999px; text-decoration:none; }

/* ===== Bonus sections ===== */
.sjk-bonus-section { background: linear-gradient(135deg, #FFF8E1 0%, #FFFFFF 100%); border-radius: var(--sjk-radius); padding: 24px 20px; margin-bottom: 20px; border: 2px dashed var(--sjk-accent); }
.sjk-bonus-section h2 { font-size: 20px; margin: 0 0 8px; color: var(--sjk-accent-dark); display: flex; align-items: center; gap: 8px; }
.sjk-bonus-section p { margin: 0 0 10px; font-size: 14px; color: var(--sjk-text); }
.sjk-bonus-cta { display: inline-block; background: var(--sjk-accent); color: var(--sjk-text); padding: 8px 18px; border-radius: 999px; text-decoration: none; font-weight: 700; font-size: 14px; margin-top: 6px; }
.sjk-flow { display: flex; flex-direction: column; gap: 6px; margin: 12px 0; font-size: 14px; }
.sjk-flow-step { background: #fff; padding: 8px 14px; border-radius: 6px; border-left: 3px solid var(--sjk-accent); font-weight: 600; }
.sjk-flow-arrow { text-align: center; color: var(--sjk-muted); font-weight: 700; }

/* ===== Print ===== */
@media print {
  body.sjk-print-sheet * { visibility: hidden; }
  body.sjk-print-sheet .sjk-result, body.sjk-print-sheet .sjk-result * { visibility: visible; }
  body.sjk-print-sheet .sjk-result { position: absolute; left: 0; top: 0; width: 100%; border: none; box-shadow: none; padding: 12mm; margin: 0; }
  body.sjk-print-sheet .sjk-actions, body.sjk-print-sheet .sjk-cert-trigger, body.sjk-print-sheet .sjk-aqua-rec-link, body.sjk-print-sheet .sjk-link-btn { display: none !important; }

  body.sjk-print-cert * { visibility: hidden; }
  body.sjk-print-cert .sjk-cert, body.sjk-print-cert .sjk-cert * { visibility: visible; }
  body.sjk-print-cert .sjk-cert { position: absolute; left: 0; top: 0; width: 100%; margin: 0; box-shadow: none; }
  body.sjk-print-cert .sjk-cert-actions { display: none !important; }

  .sjk-result h2 { color: #000 !important; }
  .sjk-result-section h3 { color: #000 !important; border-bottom-color: #000; }
  .sjk-result-section h3::before { background: #000; }
  @page { size: A4; margin: 10mm; }
}