:root{--bg:#eefbff;--panel:#ffffff;--card:#e9f8ff;--ink:#092031;--muted:#5c7585;--line:#bfe4ef;--aqua:#00a9c7;--blue:#1769ff;--coral:#ff6f61;--sand:#ffd166;--kelp:#00a878;--shadow:0 24px 70px rgba(8,88,122,.14);--header-height:76px;--radius:28px}body.dark{--bg:#06141b;--panel:#0d222d;--card:#11313f;--ink:#effcff;--muted:#a8c3cf;--line:#244a59;--aqua:#45e7ff;--blue:#70a8ff;--coral:#ff9288;--sand:#ffe08a;--kelp:#60e6b0;--shadow:0 28px 80px rgba(0,0,0,.44)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;padding-top:var(--header-height);background:radial-gradient(circle at 12% 10%,rgba(0,169,199,.20),transparent 30rem),radial-gradient(circle at 85% 10%,rgba(255,111,97,.16),transparent 25rem),linear-gradient(180deg,#eefbff 0%,#f7fdff 52%,#fff6df 100%);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.65}body.dark{background:radial-gradient(circle at 12% 10%,rgba(69,231,255,.18),transparent 30rem),radial-gradient(circle at 85% 10%,rgba(255,146,136,.12),transparent 25rem),linear-gradient(180deg,#06141b,#071018)}body:before{content:"";position:fixed;inset:0;pointer-events:none;background:radial-gradient(circle at 50% 0,transparent 0 30px,rgba(0,169,199,.045) 31px 32px,transparent 33px);background-size:90px 90px;opacity:.75}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1180px,calc(100% - 34px));margin:auto}.site-header{position:fixed;top:0;left:0;right:0;height:var(--header-height);z-index:1000;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:flex;align-items:center;gap:10px;font-weight:950;letter-spacing:-.04em;min-width:0}.brand img{width:42px;height:42px;border-radius:16px;border:2px solid var(--aqua);box-shadow:0 10px 26px rgba(0,169,199,.22)}#brandName{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.main-nav{display:flex;gap:6px;align-items:center;border:1px solid var(--line);background:rgba(255,255,255,.54);padding:6px;border-radius:999px}.main-nav a{padding:9px 13px;border-radius:999px;color:var(--muted);font-weight:850;font-size:.9rem}.main-nav a.active,.main-nav a:hover{background:linear-gradient(135deg,var(--aqua),var(--blue));color:white}.header-actions{display:flex;gap:8px}.icon-btn{width:42px;height:42px;border-radius:16px;border:1px solid var(--line);background:var(--panel);color:var(--ink);font-weight:950;cursor:pointer;box-shadow:0 10px 24px rgba(8,88,122,.08)}.menu-btn{display:none}.mobile-nav{display:none;position:fixed;top:var(--header-height);left:16px;right:16px;background:var(--panel);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:10px;z-index:1001}.mobile-nav.open{display:grid;gap:6px}.mobile-nav a{padding:12px;border-radius:16px;color:var(--muted);font-weight:850}.mobile-nav a.active,.mobile-nav a:hover{background:var(--card);color:var(--ink)}h1,h2,h3{margin:0;line-height:1.02;letter-spacing:-.055em}h1{font-size:clamp(2.35rem,5.8vw,5.25rem);max-width:950px}h2{font-size:clamp(1.95rem,4.2vw,3.75rem)}h3{font-size:1.35rem}p{margin:0;color:var(--muted)}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--aqua);font-weight:950;letter-spacing:.12em;text-transform:uppercase;font-size:.74rem}.hero{padding:58px 0 42px}.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:34px;align-items:center}.lede{font-size:1.1rem;max-width:760px;margin-top:18px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}.btn{min-height:48px;padding:12px 18px;border-radius:18px;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;font-weight:950;background:var(--panel);color:var(--ink);box-shadow:0 12px 28px rgba(8,88,122,.09);transition:.18s}.btn:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(8,88,122,.14)}.btn-primary{background:linear-gradient(135deg,var(--aqua),var(--blue));color:white;border:0}.btn-secondary{background:#fff7df;color:#735200;border-color:#f0d78b}.sonar-card{position:relative;border:1px solid var(--line);border-radius:34px;background:linear-gradient(145deg,var(--panel),var(--card));padding:22px;box-shadow:var(--shadow);overflow:hidden}.sonar-card:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 42%,rgba(0,169,199,.16),transparent 11rem),repeating-radial-gradient(circle at 50% 42%,rgba(0,169,199,.17) 0 2px,transparent 2px 44px)}.sonar-inner{position:relative;z-index:1;display:grid;gap:16px}.sonar-orb{width:190px;height:190px;border:2px solid var(--aqua);border-radius:50%;display:grid;place-items:center;margin:auto;background:radial-gradient(circle,var(--panel),rgba(0,169,199,.08));position:relative}.sonar-orb:before{content:"FISHGOO";font-weight:1000;color:var(--aqua);letter-spacing:.12em}.ping-row{display:flex;justify-content:space-between;gap:12px;align-items:center;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.42);padding:12px}.ping-row strong{color:var(--ink)}.ping-row span{color:var(--blue);font-weight:950}.sonar-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.sonar-stats div{border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.34);padding:10px}.sonar-stats strong{display:block;color:var(--coral);font-size:1.15rem}.sonar-stats span{font-size:.78rem;color:var(--muted)}section{padding:54px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:26px}.section-head p{max-width:680px}.reef{display:grid;grid-template-columns:1.08fr .92fr;gap:18px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 16px 44px rgba(8,88,122,.08)}.panel.feature{background:linear-gradient(145deg,#ffffff,#e9fbff);min-height:315px}.check{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:10px}.check li{display:flex;gap:10px;color:var(--muted)}.check li:before{content:"◌";color:var(--aqua);font-weight:1000}.current-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(245px,1fr));gap:16px}.current-card{background:var(--panel);border:1px solid var(--line);border-radius:30px;padding:20px;min-height:230px;display:flex;flex-direction:column;gap:12px;position:relative;overflow:hidden}.current-card:before{content:"";position:absolute;inset:0 0 auto 0;height:5px;background:linear-gradient(90deg,var(--aqua),var(--blue),var(--coral));}.current-mark{font-size:1.9rem}.current-name{font-weight:1000;color:var(--coral);letter-spacing:.08em}.current-card p{flex:1}.text-link{font-weight:950;color:var(--blue)}.tide-console{display:grid;grid-template-columns:330px 1fr;gap:18px}.control-stack{display:grid;gap:12px}.control-stack button{text-align:left;border:1px solid var(--line);border-radius:18px;background:var(--panel);color:var(--ink);padding:15px;font-weight:950;cursor:pointer}.control-stack button.active{background:linear-gradient(135deg,var(--aqua),var(--blue));color:white}.console-screen{background:linear-gradient(145deg,var(--panel),var(--card));border:1px solid var(--line);border-radius:28px;padding:24px;min-height:265px;box-shadow:var(--shadow)}.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}.tag-row span{border:1px solid var(--line);background:rgba(0,169,199,.08);color:var(--blue);border-radius:999px;padding:7px 10px;font-size:.82rem;font-weight:900}.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.mini-grid div{border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.34);padding:12px}.mini-grid strong{display:block;color:var(--coral);font-size:.9rem}.mini-grid p{font-size:.88rem;line-height:1.45}.timeline{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}.time-card{background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:20px}.time-card strong{display:block;color:var(--coral);font-size:2rem}.blog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}.blog-card{background:var(--panel);border:1px solid var(--line);border-radius:28px;overflow:hidden}.blog-art{min-height:150px;padding:18px;background:linear-gradient(135deg,var(--aqua),var(--blue));display:flex;align-items:end;color:#fff;font-weight:1000;font-size:1.3rem}.blog-card .pad{padding:18px;display:grid;gap:10px}.page-hero{padding:56px 0 28px}.breadcrumb{font-size:.9rem;color:var(--muted);margin-bottom:16px}.breadcrumb a{color:var(--blue);font-weight:900}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:26px;align-items:start}.article-card{background:var(--panel);border:1px solid var(--line);border-radius:30px;padding:clamp(22px,4vw,42px);box-shadow:var(--shadow)}.article-card h2{font-size:2rem;margin:34px 0 12px}.article-card p,.article-card li{color:var(--muted)}.aside{position:sticky;top:calc(var(--header-height) + 18px);display:grid;gap:14px}.aside .panel{padding:18px;border-radius:20px}.footer{margin-top:48px;padding:44px 0;background:#062333;color:#effcff}.footer p,.footer a{color:#c9e7ef}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:24px}.footer-logo{width:52px;height:52px;border-radius:16px;margin-bottom:12px}.footer a{display:block;margin:8px 0}.disclaimer{border-top:1px solid rgba(255,255,255,.16);margin-top:24px;padding-top:18px;font-size:.92rem}.faq{display:grid;gap:12px}.faq button{text-align:left;border:1px solid var(--line);border-radius:18px;background:var(--panel);color:var(--ink);padding:16px;font-weight:950;cursor:pointer}.answer{display:none;padding:0 16px 16px}.faq button.open+.answer{display:block}@media(max-width:930px){.main-nav{display:none}.menu-btn{display:inline-block}.hero-grid,.reef,.tide-console,.article-layout,.footer-grid{grid-template-columns:1fr}.aside{position:static}.sonar-card{max-width:520px}}@media(max-width:720px){.mini-grid,.sonar-stats{grid-template-columns:1fr}}@media(max-width:620px){:root{--header-height:68px}.container{width:min(100% - 26px,1180px)}.brand{gap:6px;font-size:.76rem;max-width:205px}.brand img{width:32px;height:32px}.icon-btn{width:36px;height:36px}.hero{padding-top:44px}h1{font-size:clamp(2.05rem,11vw,3.35rem)}.section-head{display:grid}.sonar-orb{width:160px;height:160px}}