:root{--bg:#080e1a;--bg2:#0e1828;--bg3:#162035;--border:rgba(255,255,255,0.07);--text:#dde8f5;--text2:#7a93b8;--text3:#3d5270;--accent:#38bdf8;--accent2:#0ea5e9;--wave:#1e88e5;--moon:#fbbf24;--high:#34d399;--low:#60a5fa;--sea:#0c4a6e;--card-radius:14px;--font:'Noto Sans JP',sans-serif}body.light{--bg:#eef4fb;--bg2:#ffffff;--bg3:#dde8f5;--border:rgba(0,0,0,0.08);--text:#0f1e33;--text2:#3d5f80;--text3:#8aaac8;--accent:#0284c7;--accent2:#0369a1;--sea:#bfdbfe}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;transition:background 0.3s,color 0.3s}a{color:inherit;text-decoration:none}header{position:sticky;top:0;z-index:100;background:var(--bg2);border-bottom:1px solid var(--border);backdrop-filter:blur(12px)}.header-inner{max-width:1100px;margin:0 auto;padding:0 20px;height:56px;display:flex;align-items:center;gap:16px}.logo{font-size:1.25rem;font-weight:700;letter-spacing:-0.03em;color:var(--accent);flex-shrink:0}.logo span{color:var(--text)}nav{display:flex;gap:4px;flex:1}nav a{font-size:0.8rem;color:var(--text2);padding:6px 10px;border-radius:8px;transition:background 0.2s,color 0.2s;white-space:nowrap}nav a:hover{background:var(--bg3);color:var(--text)}.header-controls{display:flex;align-items:center;gap:8px;flex-shrink:0}.btn-icon{background:var(--bg3);border:1px solid var(--border);color:var(--text2);border-radius:8px;padding:6px 12px;font-size:0.78rem;cursor:pointer;transition:all 0.2s;font-family:var(--font);white-space:nowrap}.btn-icon:hover{background:var(--accent);color:#fff;border-color:var(--accent)}.search-wrap{max-width:1100px;margin:0 auto;padding:20px 20px 0;display:flex;gap:8px}.search-wrap input{flex:1;background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:10px 14px;font-size:0.9rem;color:var(--text);font-family:var(--font);transition:border-color 0.2s;outline:none}.search-wrap input::placeholder{color:var(--text3)}.search-wrap input:focus{border-color:var(--accent)}.search-wrap button{background:var(--bg3);border:1px solid var(--border);border-radius:10px;padding:10px 16px;font-size:0.85rem;color:var(--text2);cursor:pointer;font-family:var(--font);transition:all 0.2s;white-space:nowrap}.search-wrap button:hover{background:var(--accent);color:#fff;border-color:var(--accent)}.breadcrumb{max-width:1100px;margin:0 auto;padding:14px 20px 0;font-size:0.78rem;color:var(--text3)}.breadcrumb a{color:var(--text3)}.breadcrumb a:hover{color:var(--accent)}.container{max-width:1100px;margin:0 auto;padding:24px 20px 60px}.page-title{font-size:1.7rem;font-weight:700;letter-spacing:-0.02em;margin-bottom:6px}.page-subtitle{font-size:0.85rem;color:var(--text2);margin-bottom:24px}.section-title{font-size:0.72rem;font-weight:700;color:var(--text3);text-transform:uppercase;letter-spacing:0.08em;margin-bottom:12px}.tide-hero{background:var(--bg2);border:1px solid var(--border);border-radius:var(--card-radius);padding:28px;margin-bottom:20px;display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px}@media (max-width: 700px){.tide-hero{grid-template-columns:1fr 1fr}}@media (max-width: 480px){.tide-hero{grid-template-columns:1fr}}.hero-block{display:flex;flex-direction:column;gap:6px}.hero-label{font-size:0.7rem;color:var(--text3);font-weight:600;text-transform:uppercase;letter-spacing:0.06em}.hero-value{font-size:2rem;font-weight:800;letter-spacing:-0.03em;line-height:1}.hero-sub{font-size:0.78rem;color:var(--text2)}.hero-divider{width:1px;background:var(--border);align-self:stretch}.moon-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--card-radius);padding:22px;margin-bottom:20px;display:flex;align-items:center;gap:24px;flex-wrap:wrap}.moon-icon{font-size:3.5rem;line-height:1;flex-shrink:0}.moon-info{flex:1;min-width:200px}.moon-name{font-size:1.3rem;font-weight:700;margin-bottom:4px;color:var(--moon)}.moon-age{font-size:0.85rem;color:var(--text2);margin-bottom:8px}.moon-tide-name{display:inline-block;padding:4px 12px;border-radius:20px;font-size:0.82rem;font-weight:700;background:var(--bg3);border:1px solid var(--border)}.moon-details{display:flex;gap:20px;flex-wrap:wrap;margin-top:12px}.moon-detail-item{display:flex;flex-direction:column;gap:3px}.moon-detail-label{font-size:0.68rem;color:var(--text3);text-transform:uppercase;letter-spacing:0.05em}.moon-detail-value{font-size:0.92rem;font-weight:700}.tide-table-wrap{background:var(--bg2);border:1px solid var(--border);border-radius:var(--card-radius);overflow:hidden;margin-bottom:20px}.tide-table{width:100%;border-collapse:collapse;font-size:0.86rem}.tide-table th{padding:12px 16px;text-align:left;background:var(--bg3);color:var(--text3);font-size:0.7rem;text-transform:uppercase;letter-spacing:0.06em;font-weight:700;border-bottom:1px solid var(--border)}.tide-table td{padding:13px 16px;border-bottom:1px solid var(--border);vertical-align:middle}.tide-table tr:last-child td{border-bottom:none}.tide-table tr:hover td{background:var(--bg3)}.tide-badge{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:20px;font-size:0.78rem;font-weight:700}.tide-badge.high{background:rgba(52,211,153,0.15);color:var(--high);border:1px solid rgba(52,211,153,0.3)}.tide-badge.low{background:rgba(96,165,250,0.15);color:var(--low);border:1px solid rgba(96,165,250,0.3)}.wave-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;margin-bottom:20px}.wave-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--card-radius);padding:18px 16px;display:flex;flex-direction:column;gap:8px}.wave-card-label{font-size:0.72rem;color:var(--text2);font-weight:500}.wave-card-value{font-size:1.7rem;font-weight:800;letter-spacing:-0.03em;line-height:1;color:var(--accent)}.wave-card-unit{font-size:0.7rem;color:var(--text3)}.wave-card-bar-wrap{height:4px;background:var(--bg3);border-radius:2px;overflow:hidden}.wave-card-bar{height:100%;border-radius:2px;background:var(--accent);transition:width 1s ease}.hourly-scroll{overflow-x:auto;margin-bottom:20px;-webkit-overflow-scrolling:touch}.hourly-scroll::-webkit-scrollbar{height:4px}.hourly-scroll::-webkit-scrollbar-track{background:var(--bg3);border-radius:2px}.hourly-scroll::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}.hourly-table{background:var(--bg2);border:1px solid var(--border);border-radius:var(--card-radius);padding:16px;min-width:680px}.hourly-row{display:grid;grid-template-columns:55px 80px 80px 80px 80px 70px;gap:8px;align-items:center;padding:8px 0;border-bottom:1px solid var(--border);font-size:0.82rem}.hourly-row:last-child{border-bottom:none}.hourly-row.header{font-size:0.68rem;color:var(--text3);font-weight:700;text-transform:uppercase;letter-spacing:0.05em;padding-bottom:10px}.hourly-time{color:var(--text2);font-weight:600}.wave-dir-arrow{display:inline-block;font-size:1rem}.tide-graph-wrap{background:var(--bg2);border:1px solid var(--border);border-radius:var(--card-radius);padding:20px;margin-bottom:20px;overflow:hidden}#tide-svg{width:100%;height:160px;display:block}.region-section{margin-bottom:32px}.region-title{font-size:0.72rem;font-weight:700;color:var(--text3);text-transform:uppercase;letter-spacing:0.1em;margin-bottom:10px;padding-bottom:8px;border-bottom:1px solid var(--border)}.city-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:8px}.city-card{background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:14px 12px;display:flex;flex-direction:column;gap:6px;transition:all 0.2s;cursor:pointer}.city-card:hover{border-color:var(--accent);transform:translateY(-1px);box-shadow:0 4px 16px rgba(0,0,0,0.25)}.city-name{font-size:0.9rem;font-weight:700}.city-pref{font-size:0.7rem;color:var(--text3)}.city-wave-mini{font-size:1.1rem;font-weight:800;color:var(--accent)}.city-sea-mini{font-size:0.7rem;color:var(--text2)}.city-tide-mini{font-size:0.72rem;font-weight:600;color:var(--moon)}.info-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--card-radius);padding:22px;margin-bottom:16px}.info-card h2{font-size:0.95rem;font-weight:700;margin-bottom:12px}.info-card p{font-size:0.84rem;color:var(--text2);line-height:1.7}.map-embed{width:100%;height:300px;border-radius:var(--card-radius);border:1px solid var(--border);overflow:hidden}.map-embed iframe{width:100%;height:100%;border:none}.loading-text{color:var(--text3);font-size:0.85rem;padding:20px 0}@keyframes pulse{0%,100%{opacity:.4}50%{opacity:1}}.loading-text{animation:pulse 1.4s ease-in-out infinite}footer{background:var(--bg2);border-top:1px solid var(--border);padding:28px 20px}.footer-inner{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}.footer-logo{font-size:1rem;font-weight:700;color:var(--accent)}.footer-logo span{color:var(--text)}.footer-links{display:flex;gap:16px;flex-wrap:wrap}.footer-links a{font-size:0.78rem;color:var(--text3);transition:color 0.2s}.footer-links a:hover{color:var(--accent)}.footer-copy{font-size:0.75rem;color:var(--text3);width:100%;margin-top:8px}.hero{max-width:1100px;margin:0 auto;padding:72px 24px 56px;text-align:center}.hero-eyebrow{font-family:'Share Tech Mono',monospace;font-size:11px;letter-spacing:3px;color:var(--accent);text-transform:uppercase;margin-bottom:20px;display:flex;align-items:center;justify-content:center;gap:8px}.hero-pulse-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:tide-pulse 1.6s ease-in-out infinite}@keyframes tide-pulse{0%,100%{box-shadow:0 0 0 0 rgba(56,189,248,.5)}50%{box-shadow:0 0 0 5px rgba(56,189,248,0)}}.hero h1{font-size:clamp(34px,6vw,68px);font-weight:900;line-height:1.1;letter-spacing:-2px;margin-bottom:20px}.hero h1 span{color:var(--accent)}.hero-lead{font-size:clamp(14px,2vw,17px);color:var(--text2);max-width:600px;margin:0 auto 40px;line-height:1.7}.hero-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.btn-primary{background:var(--accent);color:#fff;padding:14px 32px;border-radius:8px;font-weight:700;font-size:15px;transition:opacity .2s;display:inline-flex;align-items:center;gap:8px;text-decoration:none}.btn-primary:hover{opacity:.85}.btn-secondary{background:transparent;border:1px solid var(--border);color:var(--text2);padding:14px 32px;border-radius:8px;font-weight:600;font-size:15px;transition:all .2s;display:inline-flex;align-items:center;gap:8px;text-decoration:none}.btn-secondary:hover{border-color:var(--accent);color:var(--accent)}.stats-bar{background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:20px 24px}.stats-inner{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}.stat-num{font-size:32px;font-weight:900;color:var(--accent);line-height:1}.stat-lbl{font-size:11px;color:var(--text2);margin-top:4px;letter-spacing:1px}@media (max-width: 640px){.stats-inner{grid-template-columns:repeat(2,1fr)}.hero h1{letter-spacing:-1px}.page-title{font-size:1.3rem}.wave-grid{grid-template-columns:repeat(2,1fr)}.city-grid{grid-template-columns:repeat(2,1fr)}.footer-inner{flex-direction:column;align-items:flex-start}}