/* Shipping Practice Lab — Chartering Hub V63 major upgrade */
:root{--hub-bg:#061725;--hub-bg2:#0a2031;--hub-panel:#0b2639;--hub-panel2:#0d2c42;--hub-line:rgba(121,195,214,.18);--hub-cyan:#65d4e8;--hub-cyan2:#b7eef6;--hub-white:#f5fbfd;--hub-muted:#9bb3bf;--hub-gold:#d9b267;--hub-green:#62d2a5;--hub-red:#f0847d;--hub-shadow:0 24px 70px rgba(0,0,0,.26)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body.ch-hub-body{margin:0;background:radial-gradient(circle at 80% 0%,#0d3350 0,transparent 32%),linear-gradient(180deg,#061725,#071b2a 55%,#061521);color:var(--hub-white);font-family:Aptos,"Segoe UI",Arial,sans-serif}.ch-hub-body a{color:inherit}.ch-hub-shell{width:min(1480px,calc(100% - 28px));margin-inline:auto}.ch-hub-page{padding:18px 0 54px}.ch-hub-layout{display:grid;grid-template-columns:220px minmax(0,1fr) 285px;gap:18px;align-items:start}.ch-side,.ch-right{position:sticky;top:90px;display:flex;flex-direction:column;gap:14px}.ch-panel{border:1px solid var(--hub-line);border-radius:18px;background:linear-gradient(180deg,rgba(10,38,58,.96),rgba(7,29,45,.96));box-shadow:0 18px 44px rgba(0,0,0,.16)}.ch-side-nav{padding:17px}.ch-side-brand{display:flex;align-items:center;gap:10px;margin-bottom:10px;font-weight:900;letter-spacing:.12em;font-size:12px}.ch-side-brand span{width:10px;height:10px;border-radius:50%;background:var(--hub-cyan);box-shadow:0 0 0 5px rgba(101,212,232,.08)}.ch-side-nav nav{display:flex;flex-direction:column;gap:5px}.ch-side-nav a{padding:10px 11px;border-radius:10px;text-decoration:none;color:#b6cbd4;font-size:13px;border:1px solid transparent}.ch-side-nav a:hover,.ch-side-nav a.active{color:#fff;background:rgba(101,212,232,.1);border-color:rgba(101,212,232,.13)}.ch-side-label{padding:13px 4px 5px;color:#66889a;font-size:9px;font-weight:900;letter-spacing:.14em}.ch-ai-card{padding:17px}.ch-ai-card small,.ch-right small,.ch-kicker{color:var(--hub-cyan);font-size:10px;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.ch-ai-card h3,.ch-right h3{margin:8px 0 8px;font-size:20px}.ch-ai-card p,.ch-right p{margin:0;color:var(--hub-muted);line-height:1.55;font-size:13px}.ch-ai-card a{display:flex;justify-content:center;margin-top:14px;padding:12px;border-radius:11px;background:#164e73;text-decoration:none;font-weight:800;font-size:13px}.ch-main{min-width:0}.ch-hero{position:relative;overflow:hidden;min-height:500px;border:1px solid var(--hub-line);border-radius:22px;background:#071c2b;box-shadow:var(--hub-shadow)}.ch-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,22,36,.98) 0%,rgba(5,22,36,.92) 39%,rgba(5,22,36,.44) 70%,rgba(5,22,36,.2)),url('/hero-maritime-office-v2.png') center/cover no-repeat}.ch-hero:after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(102,207,229,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(102,207,229,.04) 1px,transparent 1px);background-size:48px 48px;pointer-events:none}.ch-hero-inner{position:relative;z-index:2;padding:46px;display:grid;grid-template-columns:minmax(0,1fr) 365px;gap:30px;align-items:end;min-height:500px}.ch-kicker{margin:0 0 12px}.ch-hero h1{max-width:700px;margin:0;font-size:clamp(44px,6vw,78px);line-height:.94;letter-spacing:-.055em}.ch-hero h1 em{font-style:normal;color:var(--hub-cyan)}.ch-hero-lead{max-width:660px;margin:22px 0 0;color:#cedce2;line-height:1.7;font-size:17px}.ch-hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}.ch-btn{min-height:46px;padding:0 17px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;gap:10px;text-decoration:none;font-weight:850;font-size:13px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.05)}.ch-btn.primary{background:var(--hub-cyan);border-color:var(--hub-cyan);color:#052034}.ch-hero-card{padding:18px;border:1px solid rgba(123,202,221,.23);border-radius:16px;background:rgba(5,27,43,.88);backdrop-filter:blur(14px)}.ch-hero-card-head{display:flex;justify-content:space-between;gap:12px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.08);font-size:10px;font-weight:900;letter-spacing:.1em}.ch-hero-card-head b{color:var(--hub-green)}.ch-market-row{display:grid;grid-template-columns:62px 1fr auto;gap:10px;align-items:center;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.07)}.ch-market-row:last-child{border-bottom:0}.ch-market-row span{padding:5px 7px;border-radius:6px;background:rgba(101,212,232,.1);color:var(--hub-cyan);font-size:8px;font-weight:900}.ch-market-row strong{font-size:12px}.ch-market-row small{display:block;margin-top:3px;color:#829eab;font-size:9px}.ch-market-row b{color:#dfeff3;font-size:11px}.ch-search{margin:16px 0 0;padding:15px;border:1px solid var(--hub-line);border-radius:17px;background:linear-gradient(180deg,#0a2437,#081e30)}.ch-search-box{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;padding:9px 10px 9px 14px;border:1px solid rgba(124,195,212,.25);border-radius:12px;background:#061a2a}.ch-search-box input{width:100%;border:0;outline:0;background:transparent;color:#fff;font-size:15px}.ch-search-box button{padding:9px 13px;border:0;border-radius:9px;background:#164e73;color:#fff;font-weight:800;cursor:pointer}.ch-search-results{display:none;margin-top:10px;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.ch-search-results.open{display:grid}.ch-search-result{padding:12px;border:1px solid rgba(255,255,255,.08);border-radius:11px;background:rgba(255,255,255,.035);text-decoration:none}.ch-search-result strong{display:block;font-size:13px}.ch-search-result span{display:block;margin-top:4px;color:#8fa9b6;font-size:11px}.ch-section{padding:26px 0 0}.ch-section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:13px}.ch-section-head h2{margin:0;font-size:27px;letter-spacing:-.035em}.ch-section-head p{max-width:650px;margin:0;color:var(--hub-muted);font-size:13px;line-height:1.55}.ch-learning-path{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.ch-step{position:relative;padding:17px;border:1px solid var(--hub-line);border-radius:15px;background:linear-gradient(145deg,#0a283d,#081f31);text-decoration:none;min-height:118px}.ch-step b{display:flex;align-items:center;justify-content:center;width:31px;height:31px;border-radius:50%;background:rgba(101,212,232,.12);color:var(--hub-cyan);font-size:11px}.ch-step strong{display:block;margin:13px 0 6px;font-size:15px}.ch-step span{color:#8fa8b4;font-size:11px;line-height:1.45}.ch-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.ch-category{position:relative;overflow:hidden;min-height:214px;border:1px solid var(--hub-line);border-radius:17px;background:linear-gradient(145deg,#0b2a40,#081f31);text-decoration:none}.ch-category:after{content:"→";position:absolute;right:16px;bottom:15px;color:var(--hub-cyan);font-size:18px}.ch-category-media{height:92px;background-position:center;background-size:cover;border-bottom:1px solid rgba(255,255,255,.06)}.ch-category-media.fund{background-image:linear-gradient(rgba(5,23,37,.25),rgba(5,23,37,.55)),url('/vessel-universe-hero.webp')}.ch-category-media.types{background-image:linear-gradient(rgba(5,23,37,.25),rgba(5,23,37,.55)),url('/vu-fleet-atlas-3.webp')}.ch-category-media.process{background-image:linear-gradient(rgba(5,23,37,.25),rgba(5,23,37,.55)),url('/hero-maritime-office-v2.png')}.ch-category-media.voyage{background-image:linear-gradient(rgba(5,23,37,.25),rgba(5,23,37,.55)),url('/port-atlas-hero.webp')}.ch-category-media.laytime{background-image:linear-gradient(rgba(5,23,37,.35),rgba(5,23,37,.62)),url('/vu-interior-supramax.webp')}.ch-category-media.cp{background-image:linear-gradient(rgba(5,23,37,.32),rgba(5,23,37,.62)),url('/hero-maritime-office-v2.png')}.ch-category-media.clauses{background:linear-gradient(135deg,#2b4862,#142b40 60%,#0c2031)}.ch-category-media.market{background-image:linear-gradient(rgba(5,23,37,.22),rgba(5,23,37,.62)),url('/port-atlas-world.svg')}.ch-category-media.comm{background:linear-gradient(135deg,#133b58,#0a2235)}.ch-category-media.cases{background-image:linear-gradient(rgba(5,23,37,.22),rgba(5,23,37,.62)),url('/vu-fleet-atlas-1.webp')}.ch-category-media.gloss{background:radial-gradient(circle at 20% 30%,rgba(101,212,232,.25),transparent 25%),linear-gradient(135deg,#0e3b56,#081d2e)}.ch-category-body{padding:15px 16px 18px}.ch-category-body small{color:var(--hub-cyan);font-size:9px;font-weight:900;letter-spacing:.12em}.ch-category-body h3{margin:8px 0 7px;font-size:18px}.ch-category-body p{margin:0;padding-right:20px;color:#91aab6;font-size:12px;line-height:1.5}.ch-tools-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:12px}.ch-tool-panel{padding:18px;border:1px solid var(--hub-line);border-radius:17px;background:#082134}.ch-tool-panel h3{margin:0 0 13px;font-size:20px}.ch-tool-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.ch-tool-list a{padding:13px;border:1px solid rgba(255,255,255,.07);border-radius:11px;background:rgba(255,255,255,.035);text-decoration:none}.ch-tool-list strong{display:block;font-size:13px}.ch-tool-list span{display:block;margin-top:4px;color:#8ea7b3;font-size:10px}.ch-sim{padding:18px;border:1px solid rgba(217,178,103,.22);border-radius:17px;background:linear-gradient(145deg,#172b38,#0b2232)}.ch-sim h3{margin:8px 0 8px}.ch-sim p{margin:0;color:#9ab0ba;line-height:1.5;font-size:12px}.ch-sim a{margin-top:14px}.ch-right-card{padding:16px}.ch-right-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:6px}.ch-right-head a{font-size:10px;text-decoration:none;color:var(--hub-cyan)}.ch-right-card>a{display:flex;flex-direction:column;gap:3px;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.07);text-decoration:none}.ch-right-card>a:last-child{border-bottom:0}.ch-right-card>a strong{font-size:12px}.ch-right-card>a span{font-size:10px;color:#849eaa}.ch-quick-note{margin-top:10px;padding:11px;border-radius:10px;background:rgba(101,212,232,.07);color:#c5d8df;font-size:11px;line-height:1.5}.ch-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:18px;border:1px solid var(--hub-line);border-radius:15px;overflow:hidden;background:var(--hub-line)}.ch-stats div{padding:15px;background:#082134}.ch-stats strong{display:block;font-size:22px}.ch-stats span{display:block;margin-top:5px;color:#809ba7;font-size:9px;text-transform:uppercase;letter-spacing:.08em}.ch-mobile-nav{display:none}
/* focused subpages */
.ch-focus-hero{padding:30px;border:1px solid var(--hub-line);border-radius:20px;background:linear-gradient(135deg,#0b2a40,#071c2c);box-shadow:var(--hub-shadow)}.ch-breadcrumb{font-size:11px;color:#7e9ba9}.ch-breadcrumb a{text-decoration:none;color:var(--hub-cyan)}.ch-focus-hero h1{margin:14px 0 10px;font-size:clamp(38px,5vw,62px);letter-spacing:-.05em}.ch-focus-hero>p{max-width:800px;margin:0;color:#a9bec7;line-height:1.65}.ch-focus-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:16px;margin-top:16px}.ch-workspace{min-width:0}.ch-focus-section{margin-bottom:14px;padding:20px;border:1px solid var(--hub-line);border-radius:17px;background:linear-gradient(180deg,#0a2538,#081e30)}.ch-focus-section h2{margin:0 0 12px;font-size:25px}.ch-focus-section h3{margin:15px 0 7px;font-size:16px}.ch-focus-section p,.ch-focus-section li{color:#a1b7c1;line-height:1.62;font-size:13px}.ch-focus-section ul,.ch-focus-section ol{padding-left:20px}.ch-callout{padding:13px;border-left:3px solid var(--hub-cyan);background:rgba(101,212,232,.06);border-radius:0 10px 10px 0;color:#cce0e6;font-size:12px;line-height:1.55}.ch-focus-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.ch-focus-card{padding:14px;border:1px solid rgba(255,255,255,.07);border-radius:12px;background:rgba(255,255,255,.035)}.ch-focus-card strong{display:block}.ch-focus-card span{display:block;margin-top:5px;color:#8ca6b2;font-size:11px;line-height:1.45}.ch-right-stick{position:sticky;top:90px;display:flex;flex-direction:column;gap:12px}.ch-reference{padding:16px}.ch-reference h3{margin:0 0 10px}.ch-reference dl{margin:0}.ch-reference dt{margin-top:10px;color:var(--hub-cyan);font-size:9px;font-weight:900;letter-spacing:.1em}.ch-reference dd{margin:4px 0 0;color:#a6bbc4;font-size:11px;line-height:1.5}.ch-reference a{display:flex;margin-top:13px;padding:11px;justify-content:center;border-radius:10px;background:#154b6e;text-decoration:none;font-size:12px;font-weight:800}.ch-calc{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.ch-field{display:flex;flex-direction:column;gap:5px}.ch-field label{font-size:10px;color:#91aab5}.ch-field input,.ch-field select,.ch-field textarea{width:100%;padding:11px 12px;border:1px solid rgba(127,197,215,.18);border-radius:9px;background:#061a2a;color:#fff;outline:none}.ch-field.full{grid-column:1/-1}.ch-calc-actions{grid-column:1/-1;display:flex;gap:8px}.ch-calc-actions button{padding:11px 14px;border:0;border-radius:9px;background:var(--hub-cyan);color:#052034;font-weight:900;cursor:pointer}.ch-results{grid-column:1/-1;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:3px}.ch-result{padding:12px;border-radius:10px;background:rgba(255,255,255,.045)}.ch-result span{display:block;color:#7f99a5;font-size:9px;text-transform:uppercase}.ch-result strong{display:block;margin-top:5px;font-size:15px}.ch-timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.ch-timeline div{padding:14px;border:1px solid rgba(255,255,255,.07);border-radius:11px;background:rgba(255,255,255,.03)}.ch-timeline b{color:var(--hub-cyan);font-size:10px}.ch-timeline strong{display:block;margin:8px 0 5px}.ch-timeline span{color:#8da6b1;font-size:10px;line-height:1.45}.ch-negotiation{display:grid;grid-template-columns:1fr 1fr;gap:10px}.ch-offer{padding:14px;border-radius:11px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07)}.ch-offer.owner{border-left:3px solid var(--hub-gold)}.ch-offer.charterer{border-left:3px solid var(--hub-cyan)}.ch-offer small{color:#829fab}.ch-offer strong{display:block;margin-top:5px;font-size:21px}.ch-simulator-controls{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px}.ch-simulator-controls button{padding:10px 12px;border:1px solid rgba(255,255,255,.12);border-radius:9px;background:#0d334e;color:#fff;cursor:pointer}.ch-sim-log{margin-top:10px;max-height:220px;overflow:auto;padding:10px;border-radius:10px;background:#061a2a}.ch-sim-log p{margin:0 0 7px;font-size:11px}.ch-accordion details{border-bottom:1px solid rgba(255,255,255,.07)}.ch-accordion details:last-child{border-bottom:0}.ch-accordion summary{cursor:pointer;list-style:none;padding:13px 0;font-weight:800}.ch-accordion summary::-webkit-details-marker{display:none}.ch-accordion details p{margin-top:0}.ch-table{width:100%;border-collapse:collapse;font-size:11px}.ch-table th,.ch-table td{padding:10px;border-bottom:1px solid rgba(255,255,255,.07);text-align:left}.ch-table th{color:#7fa1af;font-size:9px;text-transform:uppercase}.ch-communication{display:grid;grid-template-columns:1fr 1fr;gap:10px}.ch-message{padding:14px;border-radius:12px;background:#061a2a}.ch-message b{display:block;color:var(--hub-cyan);font-size:9px;letter-spacing:.1em}.ch-message pre{white-space:pre-wrap;margin:8px 0 0;color:#c8d8de;font:12px/1.55 ui-monospace,SFMono-Regular,Menlo,monospace}.ch-case{display:grid;grid-template-columns:1fr auto;gap:14px;padding:15px;border:1px solid rgba(255,255,255,.07);border-radius:12px;background:rgba(255,255,255,.03)}.ch-case h3{margin:0 0 7px}.ch-case p{margin:0}.ch-case button{align-self:center;padding:10px 12px;border:1px solid rgba(255,255,255,.12);border-radius:9px;background:#123d5c;color:#fff;cursor:pointer}.ch-case-solution{display:none;grid-column:1/-1;padding:12px;border-radius:9px;background:#061a2a;color:#bdd0d7;font-size:12px;line-height:1.55}.ch-case.open .ch-case-solution{display:block}.ch-glossary-search{margin-bottom:10px}.ch-glossary-search input{width:100%;padding:12px;border:1px solid rgba(255,255,255,.1);border-radius:10px;background:#061a2a;color:#fff}.ch-gloss-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.ch-term{padding:12px;border:1px solid rgba(255,255,255,.07);border-radius:10px;background:rgba(255,255,255,.03)}.ch-term strong{display:block}.ch-term span{display:block;margin-top:4px;color:#8da7b2;font-size:10px;line-height:1.45}
@media(max-width:1320px){.ch-hub-layout{grid-template-columns:210px minmax(0,1fr)}.ch-right{display:none}.ch-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:980px){.ch-hub-layout{grid-template-columns:1fr}.ch-side{position:static}.ch-side-nav{display:none}.ch-hero-inner{grid-template-columns:1fr;padding:30px}.ch-hero-card{max-width:580px}.ch-learning-path{grid-template-columns:repeat(2,minmax(0,1fr))}.ch-tools-grid{grid-template-columns:1fr}.ch-focus-grid{grid-template-columns:1fr}.ch-right-stick{position:static}.ch-timeline{grid-template-columns:repeat(2,minmax(0,1fr))}.ch-mobile-nav{position:fixed;z-index:50;left:10px;right:10px;bottom:10px;display:grid;grid-template-columns:repeat(4,1fr);padding:7px;border:1px solid rgba(126,202,221,.18);border-radius:16px;background:rgba(5,23,37,.94);backdrop-filter:blur(18px);box-shadow:0 16px 50px rgba(0,0,0,.4)}.ch-mobile-nav a{padding:8px 4px;text-align:center;text-decoration:none;font-size:9px;color:#a9bdc6}.ch-hub-page{padding-bottom:92px}}
@media(max-width:620px){.ch-hub-shell{width:min(100%,calc(100% - 16px))}.ch-hub-page{padding-top:9px}.ch-hero{min-height:auto}.ch-hero-inner{min-height:auto;padding:23px}.ch-hero h1{font-size:42px}.ch-hero-lead{font-size:14px}.ch-hero-card{display:none}.ch-search-results{grid-template-columns:1fr}.ch-section{padding-top:20px}.ch-section-head{align-items:flex-start;flex-direction:column;gap:6px}.ch-learning-path{display:flex;overflow:auto;scroll-snap-type:x mandatory;padding-bottom:6px}.ch-step{min-width:210px;scroll-snap-align:start}.ch-grid{grid-template-columns:1fr}.ch-category{min-height:190px}.ch-tool-list{grid-template-columns:1fr}.ch-stats{grid-template-columns:repeat(2,1fr)}.ch-focus-hero{padding:22px}.ch-focus-hero h1{font-size:40px}.ch-focus-cards,.ch-calc,.ch-communication,.ch-gloss-grid{grid-template-columns:1fr}.ch-results{grid-template-columns:repeat(2,1fr)}.ch-timeline{display:flex;overflow:auto}.ch-timeline div{min-width:190px}.ch-negotiation{grid-template-columns:1fr}.ch-case{grid-template-columns:1fr}.ch-case button{justify-self:start}.ch-section-head h2{font-size:24px}}