:root{
  --navy:#062b5b;--navy-2:#083b73;--navy-3:#315e54;--surface:#ffffff;--surface-2:#f5f1e8;--surface-3:#ece8dc;
  --text:#10253b;--muted:#667d91;--border:#d8e5ef;--accent:#11cfe0;--accent-2:#0ea9be;--warm:#f0b84a;--danger:#b7473f;--success:#2f8a61;
  --sea:#d8eef2;--shadow:0 12px 30px rgba(8,34,48,.08);--radius:18px;--top:76px;
}
html[data-theme="dark"]{--surface:#17282a;--surface-2:#203b37;--surface-3:#294a42;--text:#edf5fb;--muted:#a6bed3;--border:#416158;--accent:#e3ad75;--accent-2:#f2c596;--sea:#294941;--shadow:0 14px 34px rgba(0,0,0,.24)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--surface-2);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55}button,input,select{font:inherit}a{color:inherit}button{touch-action:manipulation}.app-shell{display:grid;grid-template-columns:250px minmax(0,1fr);grid-template-rows:var(--top) auto;grid-template-areas:"topbar topbar" "sidebar main";min-height:100vh}.topbar{grid-area:topbar;position:sticky;top:0;z-index:60;height:var(--top);display:flex;align-items:center;justify-content:space-between;padding:0 20px;background:linear-gradient(180deg,rgba(4,20,48,.96),rgba(5,30,66,.96));backdrop-filter:blur(15px);color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;min-width:0}.brand-logo-full{display:block;height:54px;width:auto;max-width:min(52vw,340px);object-fit:contain}.brand-logo-icon{display:none;width:42px;height:42px;object-fit:contain;border-radius:12px}.brand-copy{display:none;align-items:baseline;gap:7px;font-size:18px;min-width:0}.brand-copy strong{white-space:nowrap}.brand-copy small{font-size:9px;letter-spacing:1.6px;color:#e3ad75;font-weight:900}.top-actions{display:flex;align-items:center;gap:10px}.icon-button{width:40px;height:40px;border:1px solid rgba(255,255,255,.14);border-radius:12px;background:rgba(255,255,255,.06);color:#fff;cursor:pointer}.status-badge,.streak-badge{border-radius:999px;padding:5px 9px;font-size:12px;font-weight:800}.status-badge{background:#7f332d}.streak-badge{background:rgba(255,255,255,.08);color:#d3e3e8}.sidebar{grid-area:sidebar;position:sticky;top:var(--top);height:calc(100vh - var(--top));padding:16px 12px;background:var(--navy);color:#c9d8df;display:flex;flex-direction:column;justify-content:space-between;overflow:auto}.nav-list{display:grid;gap:4px}.nav-section{margin:14px 10px 5px;color:#6f8d9a;font-size:10px;text-transform:uppercase;letter-spacing:1.3px;font-weight:900}.nav-section:first-child{margin-top:0}.nav-list a{display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:11px;text-decoration:none;font-size:14px;color:#bed0d7;position:relative}.nav-list a>span{width:20px;text-align:center}.nav-list a:hover,.nav-list a.active{background:var(--navy-2);color:#fff}.nav-list a.active{box-shadow:inset 3px 0 0 var(--accent)}.nav-count{margin-left:auto;min-width:22px;height:22px;padding:0 6px;border-radius:999px;background:var(--danger);color:#fff;font-size:11px;display:grid;place-items:center}.sidebar-footer{display:grid;gap:10px;color:#839eaa}.mini-progress{display:grid;gap:6px;font-size:12px}.main{grid-area:main;max-width:1320px;width:100%;margin:0 auto;padding:30px 34px 72px;outline:none}.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}.page-head h1{font-size:clamp(28px,4vw,42px);line-height:1.08;letter-spacing:-.8px;margin:0 0 6px}.page-head p{margin:0;color:var(--muted);max-width:820px}.eyebrow{font-size:11px;font-weight:900;letter-spacing:1.35px;text-transform:uppercase;color:var(--accent-2);margin-bottom:7px}.grid{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.section-gap{margin-top:18px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.card h2,.card h3{margin-top:0}.row{display:flex;align-items:center;gap:10px}.between{justify-content:space-between}.wrap{flex-wrap:wrap}.center{justify-content:center}.muted{color:var(--muted)}.small{font-size:13px}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:12px;padding:11px 16px;background:var(--accent);color:#fff;text-decoration:none;font-weight:850;cursor:pointer;transition:.18s}.button:hover{transform:translateY(-1px);background:var(--accent-2)}.button.secondary{background:var(--surface-2);border:1px solid var(--border);color:var(--text)}.button.warm{background:var(--warm);color:#2e2a1e}.button.danger{background:var(--danger);color:#fff}.button.large{padding:14px 20px;font-size:16px}.button.full{width:100%}.button:disabled{opacity:.45;cursor:not-allowed;transform:none}.ghost-light{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18)}.progress-track{height:8px;background:rgba(118,145,158,.18);border-radius:999px;overflow:hidden}.progress-bar{height:100%;border-radius:999px;background:var(--accent);transition:width .3s}.progress-bar.good{background:var(--success)}.progress-bar.warn{background:var(--warm)}.progress-bar.bad{background:var(--danger)}.badge{display:inline-flex;align-items:center;gap:5px;padding:5px 8px;border-radius:999px;background:var(--surface-2);color:var(--muted);font-size:11px;font-weight:850;white-space:nowrap}.badge.critical{background:var(--danger);color:#fff}.badge.ok{background:var(--success);color:#fff}.badge.new{background:var(--accent);color:#fff}.callout{border-left:4px solid var(--accent);padding:14px 16px;border-radius:0 12px 12px 0;background:var(--surface-2)}.callout.warning{border-left-color:var(--warm)}.callout.compact{margin-top:16px;font-size:13px}
.dashboard-hero{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:30px;border-radius:24px;background:linear-gradient(135deg,#1a3533,#2b5f54 48%,#ae7952 120%);color:#fff;box-shadow:0 18px 40px rgba(7,31,45,.2)}.hero-copy{max-width:760px}.hero-kicker{display:inline-block;color:#e9bd88;font-size:11px;font-weight:900;letter-spacing:1.3px;margin-bottom:8px}.dashboard-hero h2{font-size:clamp(25px,4vw,38px);line-height:1.12;margin:0 0 10px}.dashboard-hero p{margin:0;color:#e2ebe2}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.ring{--value:0deg;flex:0 0 148px;width:148px;aspect-ratio:1;border-radius:50%;display:grid;place-items:center;background:conic-gradient(#dfad73 var(--value),rgba(255,255,255,.13) 0);padding:10px}.ring:before{content:"";grid-area:1/1;width:100%;height:100%;border-radius:50%;background:#203b37}.ring>div{grid-area:1/1;z-index:1;text-align:center;display:grid}.ring strong{font-size:31px;line-height:1}.ring span{font-size:11px;text-transform:uppercase;color:#d3e1d6;margin-top:4px}.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:14px}.metric-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:17px;display:grid;gap:4px;box-shadow:var(--shadow)}.metric-card>span{font-size:12px;color:var(--muted);font-weight:700}.metric-card strong{font-size:29px;line-height:1.1}.metric-card small{color:var(--muted)}.date-strong{font-size:21px!important}.mission-list{display:grid;gap:8px;margin-top:15px}.mission{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;text-decoration:none;padding:11px;border-radius:13px;background:var(--surface-2);border:1px solid transparent}.mission:hover{border-color:var(--accent)}.mission-index{width:31px;height:31px;border-radius:9px;background:var(--surface);display:grid;place-items:center;font-weight:900;color:var(--accent-2)}.mission span:nth-child(2){display:grid}.mission small{color:var(--muted)}.mission b{font-size:21px;color:var(--muted)}.critical-row{margin-top:15px}.critical-row .progress-track{margin-top:6px}.score-chip{font-size:11px;padding:4px 8px;border-radius:999px;font-weight:900}.score-chip.good{color:var(--success);background:color-mix(in srgb,var(--success) 12%,transparent)}.score-chip.warn{color:#8a6617;background:color-mix(in srgb,var(--warm) 18%,transparent)}.score-chip.bad{color:var(--danger);background:color-mix(in srgb,var(--danger) 12%,transparent)}.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:14px}.feature-card{text-decoration:none;display:grid;gap:5px;padding:18px;border-radius:16px;min-height:150px;border:1px solid var(--border);position:relative;overflow:hidden}.feature-card:after{content:"";position:absolute;inset:auto -20px -55px auto;width:130px;height:130px;border-radius:50%;background:rgba(255,255,255,.11)}.feature-card.sea{background:linear-gradient(135deg,#315e54,#062b5b);color:#fff}.feature-card.buoy{background:linear-gradient(135deg,#f6c84e,#e8a92e);color:#29271f}.feature-card.chart{background:linear-gradient(135deg,#eee9dc,#dce6da);color:#274b44}.feature-icon{font-size:32px;font-weight:900}.feature-card small{max-width:240px;opacity:.8}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}.form-grid label,.flash-filter label{display:grid;gap:6px;color:var(--muted);font-size:13px;font-weight:750}.form-grid input,.form-grid select,.flash-filter select,.math-answer input{width:100%;border:1px solid var(--border);border-radius:11px;background:var(--surface-2);color:var(--text);padding:11px}.plan-summary{display:flex;align-items:flex-end;gap:8px;flex-wrap:wrap}.plan-summary .eyebrow,.plan-summary p{width:100%}.big-number{font-size:64px;line-height:.9;color:var(--accent-2)}.plan-summary>span{font-size:20px;font-weight:800}.weak-list{display:grid;gap:8px}.weak-list a{display:flex;justify-content:space-between;gap:10px;text-decoration:none;padding:10px 12px;border-radius:11px;background:var(--surface-2)}
.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.module-card-pro{text-decoration:none;display:flex;flex-direction:column;min-height:245px;transition:.2s}.module-card-pro:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--accent) 55%,var(--border))}.module-top{display:flex;align-items:center;justify-content:space-between}.module-number{width:47px;height:47px;border-radius:14px;background:var(--surface-2);display:grid;place-items:center;font-weight:950;color:var(--accent-2)}.module-number.sm{width:35px;height:35px;border-radius:10px}.module-card-pro h3{margin:18px 0 7px}.module-card-pro p{font-size:13px;color:var(--muted);margin:0 0 18px}.module-progress{margin-top:auto;display:grid;gap:6px}.module-footer{display:flex;justify-content:space-between;color:var(--muted);font-size:11px;margin-top:12px}.module-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:18px}.official-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 20px;padding-left:20px}.official-list.one{grid-template-columns:1fr}.micro-lesson{display:grid;grid-template-columns:auto 1fr;gap:14px;padding:19px 0;border-top:1px solid var(--border)}.micro-lesson h3{margin:0 0 7px}.micro-lesson p{margin:0;color:color-mix(in srgb,var(--text) 84%,var(--muted));}.lesson-no{width:31px;height:31px;border-radius:10px;background:var(--surface-2);display:grid;place-items:center;font-weight:900;color:var(--accent-2)}.module-side{display:grid;align-content:start;gap:14px}.sticky-card{position:sticky;top:calc(var(--top) + 18px)}.side-score{font-size:55px;font-weight:950;color:var(--accent-2);line-height:1}.mini-metrics{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:12px 0}.mini-metrics span{display:grid;padding:9px;background:var(--surface-2);border-radius:10px;font-size:11px;color:var(--muted)}.mini-metrics b{font-size:16px;color:var(--text)}.side-actions{display:grid;gap:8px;margin-top:15px}.trap-list{margin:0;padding-left:18px}.trap-list li+li{margin-top:8px}.challenge-banner{display:flex;align-items:center;justify-content:space-between;gap:20px;background:linear-gradient(135deg,var(--surface),var(--surface-3))}.challenge-banner h2{margin-bottom:5px}.challenge-banner p{color:var(--muted);margin:0}.test-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.test-card{text-decoration:none;display:grid;gap:10px}.test-card h3{margin:0}.test-card small{color:var(--muted)}
.quiz-shell{max-width:930px;margin:0 auto}.quiz-card{padding:24px}.quiz-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.quiz-question{font-size:22px;line-height:1.35;margin:20px 0}.options{display:grid;gap:10px}.option{width:100%;display:flex;align-items:flex-start;gap:12px;text-align:left;border:1px solid var(--border);border-radius:13px;padding:13px 14px;background:var(--surface);color:var(--text);cursor:pointer}.option:hover{border-color:var(--accent)}.option .letter{flex:0 0 29px;height:29px;border-radius:9px;background:var(--surface-2);display:grid;place-items:center;font-weight:900}.option.selected{border-color:var(--accent);box-shadow:0 0 0 2px color-mix(in srgb,var(--accent) 17%,transparent)}.option.correct{border-color:var(--success);background:color-mix(in srgb,var(--success) 7%,var(--surface))}.option.incorrect{border-color:var(--danger);background:color-mix(in srgb,var(--danger) 7%,var(--surface))}.explanation{margin-top:16px;border-radius:13px;padding:14px 15px;background:var(--surface-2);border-left:4px solid var(--accent)}.explanation p{margin:5px 0}.explanation small{color:var(--muted)}.explanation.okbox{border-left-color:var(--success)}.explanation.badbox{border-left-color:var(--danger)}.quiz-actions{display:flex;justify-content:space-between;gap:10px;margin-top:18px}.result-big{text-align:center;padding:30px}.score{font-size:67px;font-weight:950;line-height:1;margin:8px 0}.pass{color:var(--success)}.fail{color:var(--danger)}.result-insight{max-width:620px;margin:0 auto 20px;color:var(--muted)}.review-hero{min-height:260px;display:flex;align-items:center;justify-content:space-between;gap:28px}.review-hero h2{font-size:30px;margin-bottom:6px}.empty-state{text-align:center;display:grid;place-items:center}.empty-state>span{width:62px;height:62px;border-radius:50%;display:grid;place-items:center;background:color-mix(in srgb,var(--success) 14%,transparent);color:var(--success);font-size:30px;font-weight:900}.empty-state p{color:var(--muted)}
.flash-layout{display:grid;grid-template-columns:260px minmax(0,760px);justify-content:center;gap:18px}.flash-filter{align-self:start}.flash-stat{display:grid;gap:3px;margin-top:18px}.flash-stat strong{font-size:26px}.flash-stat span{font-size:12px;color:var(--muted)}.flash-main{display:grid;gap:14px}.flash-card{min-height:390px;border:1px solid var(--border);border-radius:24px;background:linear-gradient(145deg,var(--surface),var(--surface-3));color:var(--text);padding:35px;display:grid;place-items:center;text-align:center;box-shadow:var(--shadow);cursor:pointer}.flash-card strong{font-size:clamp(25px,4vw,38px);line-height:1.25;max-width:650px}.flash-card small{color:var(--muted)}.flash-label{font-size:10px;letter-spacing:1.5px;font-weight:950;color:var(--accent-2);align-self:start}.flash-card.flipped{background:linear-gradient(145deg,color-mix(in srgb,var(--accent) 10%,var(--surface)),var(--surface))}.confidence-row{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.trainer-layout{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(330px,.92fr);gap:18px}.visual-card,.trainer-question{min-height:560px}.ripa-sea{height:450px;margin-top:14px;border-radius:16px;position:relative;overflow:hidden;background:radial-gradient(circle at 20% 20%,rgba(255,255,255,.12),transparent 30%),linear-gradient(180deg,#0e7086,#0a4d64);border:1px solid rgba(255,255,255,.16)}.ripa-sea:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:10% 10%}.ripa-sea.channel:after{content:"";position:absolute;left:20%;right:20%;top:0;bottom:0;border-left:2px dashed rgba(255,255,255,.3);border-right:2px dashed rgba(255,255,255,.3)}.north-arrow{position:absolute;right:12px;top:10px;color:#d2edf2;font-weight:900;font-size:12px}.own-boat,.target-boat{position:absolute}.boat{color:#f6f9fa;width:48px;position:absolute}.target-boat .boat{color:#f1bd4d}.boat svg{display:block;width:48px}.boat span{position:absolute;left:50%;top:87px;transform-origin:center;translate:-50% 0;white-space:nowrap;background:rgba(3,20,30,.72);color:#fff;border-radius:6px;padding:2px 6px;font-size:10px;font-weight:900}.scene-title{display:flex;justify-content:space-between;gap:10px;margin-top:12px}.scene-title span{color:var(--muted)}.trainer-question{display:flex;flex-direction:column}.trainer-question h2{font-size:24px;line-height:1.35}.compact-options{margin-top:8px}.trainer-question .quiz-actions{margin-top:auto;padding-top:18px;justify-content:flex-end}.buoy-stage{display:grid;grid-template-rows:auto 1fr auto}.buoy-wrap{min-height:430px;display:grid;place-items:center;background:linear-gradient(180deg,#cfeaf0 0 62%,#7bbfcb 62% 70%,#519aa7 70%);border-radius:16px;margin-top:14px;overflow:hidden}.buoy-svg{width:180px;filter:drop-shadow(0 12px 8px rgba(0,0,0,.16))}.buoy-name{text-align:center;font-weight:900;margin-top:10px}.trainer-tabs{display:inline-flex;gap:4px;padding:4px;background:var(--surface);border:1px solid var(--border);border-radius:13px;margin-bottom:18px}.trainer-tabs button{border:0;background:transparent;color:var(--muted);padding:9px 13px;border-radius:9px;font-weight:800;cursor:pointer}.trainer-tabs button.active{background:var(--navy);color:#fff}
.chart-layout{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(300px,.55fr);gap:18px}.chart-card{padding:12px}.chart-board-pro{min-height:570px;position:relative;overflow:hidden;cursor:crosshair;border-radius:14px;background:linear-gradient(#daeff2,#c7e4e8);border:1px solid #8ab7bf}.chart-board-pro:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(29,95,105,.2) 1px,transparent 1px),linear-gradient(90deg,rgba(29,95,105,.2) 1px,transparent 1px);background-size:10% 10%}.chart-board-pro:after{content:"";position:absolute;left:12%;top:25%;width:18%;height:28%;border:2px dotted rgba(75,120,94,.35);border-radius:45% 55% 60% 35%;transform:rotate(20deg);background:rgba(107,156,112,.1)}.chart-grid-label{position:absolute;z-index:2;font-size:10px;font-weight:800;color:#3e6c75;background:rgba(255,255,255,.6);padding:2px 5px;border-radius:4px}.lat-top{left:8px;top:8px}.lat-bottom{left:8px;bottom:8px}.lon-left{left:8px;bottom:29px}.lon-right{right:8px;bottom:8px}.chart-watermark{position:absolute;z-index:2;right:10px;top:10px;font-size:9px;letter-spacing:1px;color:#517b82;font-weight:900}.plot-point{position:absolute;z-index:5;width:18px;height:18px;border-radius:50%;transform:translate(-50%,-50%);box-shadow:0 0 0 4px rgba(255,255,255,.75)}.plot-point.user{background:var(--danger)}.plot-point.target{background:var(--success)}.plot-point.start{background:#266fb2}.route-overlay{position:absolute;inset:0;width:100%;height:100%;z-index:3;pointer-events:none}.route-overlay line{stroke:#416e61;stroke-width:.55;stroke-dasharray:1.2 1}.chart-panel{align-self:start}.coord-target{display:grid;gap:6px;padding:14px;border-radius:13px;background:var(--surface-2);margin:12px 0}.coord-target strong{font-variant-numeric:tabular-nums}.chart-panel p{color:var(--muted)}.chart-result{display:grid;gap:4px;padding:13px;border-radius:12px;margin:15px 0}.chart-result.good{background:color-mix(in srgb,var(--success) 10%,var(--surface));color:var(--success)}.chart-result.warn{background:color-mix(in srgb,var(--warm) 14%,var(--surface));color:#815f13}.chart-result span{font-size:12px;color:var(--muted)}.math-trainer{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:18px;max-width:950px}.math-card{min-height:390px}.math-card h2{font-size:28px;line-height:1.35;margin:20px 0}.math-answer{display:flex;align-items:center;gap:10px;max-width:300px}.math-answer input{font-size:24px;font-weight:900}.math-answer span{font-size:18px;font-weight:900}.formula-card{display:grid;align-content:start;gap:12px}.formula-card>div:not(.eyebrow){display:grid;padding:12px;border-radius:11px;background:var(--surface-2)}.formula-card span{font-size:12px;color:var(--muted)}
.exam-intro{display:grid;grid-template-columns:1.2fr .8fr;gap:25px;padding:28px}.exam-intro-main h2{font-size:36px;margin:12px 0 6px}.exam-intro-main p{color:var(--muted);max-width:620px}.criteria.pro{display:grid;gap:9px}.criteria.pro>div,.result-criteria>div{display:flex;justify-content:space-between;gap:12px;padding:12px;border-radius:11px;background:var(--surface-2)}.distribution-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px}.distribution-grid span{display:grid;gap:3px;padding:11px;border-radius:10px;background:var(--surface-2);font-size:11px;color:var(--muted)}.distribution-grid strong{font-size:22px;color:var(--text)}.distribution-grid small{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.exam-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:16px}.exam-nav{align-self:start;position:sticky;top:calc(var(--top) + 16px)}.question-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin:14px 0}.question-grid button{aspect-ratio:1;border:1px solid var(--border);border-radius:8px;background:var(--surface-2);color:var(--muted);font-size:11px;font-weight:900;cursor:pointer}.question-grid button.current{outline:2px solid var(--accent);outline-offset:1px}.question-grid button.answered{background:color-mix(in srgb,var(--accent) 15%,var(--surface));color:var(--accent-2)}.question-grid button.flagged{box-shadow:inset 0 0 0 2px var(--warm)}.exam-legend{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0 16px;font-size:10px;color:var(--muted)}.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:4px;background:var(--surface-3)}.dot.answered{background:var(--accent)}.dot.flagged{background:var(--warm)}.timer{font-variant-numeric:tabular-nums;font-weight:950;padding:7px 10px;border-radius:10px;background:var(--surface-2)}.exam-actions{display:grid;grid-template-columns:auto 1fr auto;gap:8px;margin-top:18px}.result-dashboard{display:grid;grid-template-columns:1fr 1fr;gap:18px}.result-status{display:inline-block;margin-top:10px;border-radius:999px;padding:7px 14px;font-size:12px;font-weight:950}.pass-bg{background:color-mix(in srgb,var(--success) 15%,transparent);color:var(--success)}.fail-bg{background:color-mix(in srgb,var(--danger) 15%,transparent);color:var(--danger)}.criteria.result-criteria{display:grid;gap:8px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;min-width:650px}th,td{padding:11px 10px;border-bottom:1px solid var(--border);text-align:left}th{font-size:10px;letter-spacing:.8px;text-transform:uppercase;color:var(--muted)}.table-progress{width:150px;height:7px;border-radius:999px;background:var(--surface-2);overflow:hidden}.table-progress span{display:block;height:100%;background:var(--accent)}.review-list{display:grid;gap:8px;margin-top:14px}.review-item{border:1px solid var(--border);border-radius:12px;overflow:hidden}.review-item summary{display:grid;grid-template-columns:auto auto 1fr;gap:10px;align-items:center;padding:12px;cursor:pointer}.review-item summary>span{width:28px;height:28px;border-radius:8px;background:var(--surface-2);display:grid;place-items:center}.review-item summary small{color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.review-item.ok{border-left:4px solid var(--success)}.review-item.bad{border-left:4px solid var(--danger)}.review-item>div{padding:0 14px 14px 50px;color:var(--muted)}.mistake-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.mistake-card h3{font-size:16px;margin:14px 0 8px}.mistake-card p{font-size:13px}.mistake-card>small{color:var(--muted)}.mistake-footer{display:flex;justify-content:space-between;gap:10px;border-top:1px solid var(--border);margin-top:15px;padding-top:10px;font-size:11px;color:var(--muted)}.mistake-footer a{text-decoration:none;color:var(--accent-2);font-weight:900}.mastery-list{display:grid;gap:12px}.mastery-row{display:grid;grid-template-columns:minmax(200px,1.1fr) minmax(180px,2fr) 48px 90px;align-items:center;gap:12px}.mastery-row small{color:var(--muted);text-align:right}.source-list{display:grid;gap:8px}.source-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;text-decoration:none;padding:12px;border-radius:11px;background:var(--surface-2)}.source-list a span{display:grid}.source-list small{color:var(--muted)}.danger-zone{display:flex;align-items:center;justify-content:space-between;gap:18px}.toast{position:fixed;right:18px;bottom:18px;z-index:100;max-width:370px;padding:12px 15px;border-radius:12px;background:var(--navy);color:#fff;box-shadow:0 16px 40px rgba(0,0,0,.25);opacity:0;pointer-events:none;transform:translateY(12px);transition:.2s}.toast.show{opacity:1;transform:none}.empty{padding:28px;text-align:center;color:var(--muted)}.bottom-nav{display:none}.mobile-only{display:none}
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/* ===== RumboApto visual premium ===== */
.premium-layout{align-items:start}.premium-card{border-radius:22px;box-shadow:0 18px 40px rgba(4,24,37,.08), inset 0 1px 0 rgba(255,255,255,.4);background:linear-gradient(180deg,var(--surface),color-mix(in srgb,var(--surface) 85%,#fff))}.trainer-toggle-row{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0 4px}.trainer-toggle-row.compact{position:absolute;left:16px;top:16px;z-index:6}.mini-toggle{appearance:none;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.08);backdrop-filter:blur(10px);color:#edf8fc;font-weight:800;border-radius:999px;padding:8px 12px;cursor:pointer;transition:.2s}.mini-toggle.active{background:#fff;color:#29544c}.scene-title.rich{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-top:14px}.scene-title.rich>div:first-child{display:grid;gap:4px}.scene-title.rich strong{font-size:18px}.scene-title.rich span{color:var(--muted)}.scene-tags{display:flex;gap:8px;flex-wrap:wrap}.hud-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;background:var(--surface-2);font-size:11px;font-weight:900;color:var(--text)}.hud-chip.info{background:rgba(45,136,212,.12);color:#245b8a}.hud-chip.warm{background:rgba(238,175,52,.14);color:#8b5d0e}.hud-chip.critical{background:rgba(216,61,61,.12);color:#a92d2d}

.ripa-stage{position:relative}.ripa-ocean-svg{width:100%;display:block;border-radius:18px;overflow:hidden;background:#0b3e55;border:1px solid rgba(255,255,255,.16);box-shadow:inset 0 1px 0 rgba(255,255,255,.18), 0 18px 38px rgba(3,23,36,.22)}.ripa-stage.night .ripa-ocean-svg{box-shadow:inset 0 1px 0 rgba(255,255,255,.08), 0 18px 38px rgba(2,12,19,.44)}.ripa-ocean-svg .sea-lines path{fill:none;stroke:rgba(255,255,255,.22);stroke-width:4;stroke-linecap:round;animation:seaShift 8s ease-in-out infinite}.ripa-ocean-svg .channel-lanes line{stroke:rgba(255,255,255,.32);stroke-width:3;stroke-dasharray:12 12}.ripa-ocean-svg .channel-lanes rect{stroke:rgba(255,255,255,.12)}.ripa-ocean-svg .radar-sweep{transform-origin:120px 120px;animation:radarSweep 3.8s linear infinite}.ripa-ocean-svg .vessel-track line{stroke:rgba(255,255,255,.55);stroke-width:4;stroke-dasharray:10 12}.ripa-ocean-svg .vessel-track.target line{stroke:rgba(255,211,107,.75)}.ripa-ocean-svg .wake{fill:url(#glowGrad);opacity:.26}.ripa-ocean-svg .wake.amber{opacity:.18}.ripa-ocean-svg .cpa-zone circle{fill:none;stroke:rgba(255,255,255,.16);stroke-width:3;stroke-dasharray:8 10}.ripa-ocean-svg .bearing-text text{fill:#e7f7fb;font-size:22px;font-weight:900}.ripa-hud-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.hud-panel{padding:14px;border-radius:16px;background:linear-gradient(180deg,rgba(6,31,45,.86),rgba(8,51,73,.86));color:#ecf9fd;border:1px solid rgba(255,255,255,.08);display:grid;gap:5px}.hud-panel span{font-size:11px;letter-spacing:1.2px;text-transform:uppercase;color:#8bc7d5;font-weight:900}.hud-panel strong{font-size:18px}.hud-panel small{color:#d5e8ee}.visual-card.premium-card{overflow:hidden}.visual-card.premium-card>.row.between{margin-bottom:12px}

.buoy-wrap.premium{min-height:0;background:none;border-radius:18px;padding:0;overflow:visible}.buoy-svg.premium{width:min(100%,350px);height:auto;display:block;margin:0 auto}.buoy-stage.premium-card{grid-template-rows:auto auto auto auto auto}.buoy-legend{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.buoy-legend>div{padding:12px 14px;border-radius:14px;background:var(--surface-2);display:grid;gap:4px}.buoy-legend span{font-size:11px;font-weight:800;color:var(--muted);text-transform:uppercase;letter-spacing:1px}.buoy-legend strong{font-size:15px}.buoy-svg .buoy-float{transform-origin:180px 210px}.buoy-svg text{font-family:inherit}.buoy-name{padding-bottom:4px}.trainer-question.premium-card h2{font-size:clamp(24px,3vw,30px)}

.chart-layout.premium-chart-layout,.math-trainer.premium-chart-layout{align-items:start}.chart-board-pro{position:relative;overflow:hidden;border-radius:18px;background:linear-gradient(#edf7f8,#c8e2e7);border:1px solid #96bcc4;box-shadow:inset 0 1px 0 rgba(255,255,255,.6),0 18px 34px rgba(7,41,54,.08)}.chart-board-pro .chart-artwork{position:absolute;inset:0;width:100%;height:100%}.chart-board-pro .rhumb-web line{stroke:#8db1b8;stroke-width:1.2;stroke-dasharray:3 6}.chart-board-pro .sounding-set text{font-size:20px;fill:#37616b;font-weight:700;opacity:.75}.chart-board-pro .chart-symbols circle,.chart-board-pro .chart-symbols rect,.chart-board-pro .chart-symbols path{stroke:#1d6677;fill:rgba(255,255,255,.5);stroke-width:2}.chart-board-pro .compass-rose text{font-size:20px;fill:#1d4a58;font-weight:900;text-anchor:middle}.chart-crosshair{position:absolute;left:var(--mx,50%);top:var(--my,50%);width:22px;height:22px;border:2px solid rgba(23,78,97,.55);border-radius:50%;transform:translate(-50%,-50%);pointer-events:none;opacity:.78}.chart-crosshair:before,.chart-crosshair:after{content:"";position:absolute;background:rgba(23,78,97,.48)}.chart-crosshair:before{left:50%;top:-34px;width:1px;height:88px;transform:translateX(-50%)}.chart-crosshair:after{top:50%;left:-34px;width:88px;height:1px;transform:translateY(-50%)}.plot-point{width:20px;height:20px;box-shadow:0 0 0 5px rgba(255,255,255,.8),0 8px 18px rgba(0,0,0,.18)}.plot-point.start{background:#2676bf}.plot-point.user{background:#d64c4c}.plot-point.target{background:#30b176}.plot-point.pulse{animation:pulsePoint 1.5s ease-in-out infinite}.route-overlay.animated line{stroke:#416e61;stroke-width:.65;stroke-dasharray:1.6 1;stroke-dashoffset:16;animation:routeDraw 2.4s linear infinite}.chart-side-note{display:grid;gap:5px;margin-top:16px;padding:14px;border-radius:14px;background:linear-gradient(180deg,color-mix(in srgb,var(--accent) 8%,var(--surface)),var(--surface));border:1px solid var(--border)}.chart-side-note span{font-size:11px;color:var(--accent-2);font-weight:900;letter-spacing:1px;text-transform:uppercase}.chart-side-note strong{font-size:16px}.chart-side-note small{color:var(--muted)}

@keyframes seaShift{0%,100%{transform:translateX(0)}50%{transform:translateX(-14px)}}@keyframes radarSweep{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}@keyframes pulsePoint{0%,100%{transform:translate(-50%,-50%) scale(1)}50%{transform:translate(-50%,-50%) scale(1.12)}}@keyframes routeDraw{to{stroke-dashoffset:0}}

@media(max-width:980px){.ripa-hud-grid,.buoy-legend{grid-template-columns:1fr}.trainer-toggle-row.compact{position:static;margin-bottom:10px}.mini-toggle{font-size:12px}.ripa-ocean-svg{border-radius:16px}}
@media(max-width:680px){.scene-title.rich{flex-direction:column}.hud-panel strong{font-size:16px}.buoy-svg.premium{width:min(100%,290px)}.chart-crosshair{display:none}}

/* ===== Interface premium v2.1 ===== */
body{background:
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html[data-theme="dark"] body{background:
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.brand-logo-full{filter:drop-shadow(0 8px 16px rgba(0,0,0,.18))}
.sidebar{background:linear-gradient(180deg,#051731,#072449 38%,#082d58);border-right:1px solid rgba(255,255,255,.06)}
.sidebar:before{content:"";display:block;height:96px;border-radius:18px;margin:2px 4px 14px;background:linear-gradient(135deg,rgba(46,163,165,.22),rgba(255,255,255,.04));border:1px solid rgba(255,255,255,.08);box-shadow:inset 0 1px 0 rgba(255,255,255,.08);background-image:radial-gradient(circle at 20% 18%, rgba(255,255,255,.16), transparent 26%),linear-gradient(135deg,rgba(46,163,165,.24),rgba(255,255,255,.02));}
.main{padding-top:26px}
.page-head{padding:8px 2px 2px}.page-head h1{letter-spacing:-1.2px}.page-head p{font-size:15px;line-height:1.6}
.card{backdrop-filter:blur(10px)}
.premium-panel{position:relative;overflow:hidden}
.premium-panel:before{content:"";position:absolute;inset:0 0 auto 0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.6),transparent);opacity:.6}
.hero-premium{position:relative;overflow:hidden;padding:34px 34px 30px;background:
  radial-gradient(420px 210px at 82% 18%, rgba(255,255,255,.12), transparent 60%),
  linear-gradient(135deg,#071a2b,#29544c 48%,#0e5b64 100%)}
.hero-premium:before{content:"";position:absolute;inset:0;background:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:26px 26px;mask-image:linear-gradient(180deg,rgba(0,0,0,.65),transparent 90%);pointer-events:none}
.hero-side-stack{display:grid;gap:14px;justify-items:end;position:relative;z-index:1}.hero-side-card{max-width:220px;padding:14px 16px;border-radius:16px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);box-shadow:inset 0 1px 0 rgba(255,255,255,.12)}.hero-side-card span{display:block;color:#90d8db;font-size:11px;font-weight:900;letter-spacing:1.2px;text-transform:uppercase;margin-bottom:6px}.hero-side-card strong{display:block;font-size:15px;line-height:1.35}.hero-side-card small{display:block;margin-top:6px;color:#d2e6eb}
.metrics-premium .metric-card{position:relative;overflow:hidden}.metrics-premium .metric-card.highlight{background:linear-gradient(180deg,color-mix(in srgb,var(--accent) 10%,var(--surface)),var(--surface));border-color:color-mix(in srgb,var(--accent) 18%,var(--border))}.metrics-premium .metric-card:after{content:"";position:absolute;right:-28px;bottom:-28px;width:92px;height:92px;border-radius:50%;background:rgba(20,127,132,.07)}
.focus-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.focus-card{padding:15px 16px;border-radius:16px;background:linear-gradient(180deg,var(--surface),color-mix(in srgb,var(--surface) 88%,#fff));border:1px solid var(--border);box-shadow:var(--shadow);display:grid;gap:4px}.focus-card span{font-size:12px;color:var(--muted);font-weight:700}.focus-card strong{font-size:16px;line-height:1.35}
.course-overview,.test-toolbar{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.section-gap0{margin-top:0}.overview-pill{padding:14px 16px;border-radius:16px;background:linear-gradient(180deg,var(--surface),color-mix(in srgb,var(--surface) 90%,#fff));border:1px solid var(--border);box-shadow:var(--shadow);display:grid;gap:4px}.overview-pill span{font-size:11px;color:var(--muted);font-weight:900;letter-spacing:1px;text-transform:uppercase}.overview-pill strong{font-size:18px;line-height:1.2}
.module-card-pro{position:relative;overflow:hidden;background:linear-gradient(180deg,var(--surface),color-mix(in srgb,var(--surface) 92%,#fff));border-radius:22px}.module-card-pro:before{content:"";position:absolute;left:0;right:0;top:0;height:5px;background:linear-gradient(90deg,var(--accent),#5fd0ce)}.module-card-pro.critical-card:before{background:linear-gradient(90deg,#ecb54a,#f4d692)}.module-card-pro:hover{transform:translateY(-3px);box-shadow:0 22px 40px rgba(8,34,48,.12)}
.lesson-card,.sticky-card,.challenge-banner,.test-card,.mistake-card,.exam-intro,.exam-nav,.quiz-card{border-radius:22px}.lesson-card{position:relative;overflow:hidden}.lesson-card:after{content:"";position:absolute;right:-50px;top:-50px;width:160px;height:160px;border-radius:50%;background:rgba(20,127,132,.06)}
.micro-lesson{padding:14px 14px 14px 12px;border-radius:16px;background:linear-gradient(180deg,var(--surface),var(--surface-2));border:1px solid var(--border)}
.module-side .sticky-card{box-shadow:0 22px 38px rgba(8,34,48,.12)}
.test-card{transition:.2s;background:linear-gradient(180deg,var(--surface),color-mix(in srgb,var(--surface) 92%,#fff))}.test-card:hover{transform:translateY(-3px);box-shadow:0 18px 32px rgba(8,34,48,.12)}
.challenge-banner{background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 10%,var(--surface)),var(--surface));border-color:color-mix(in srgb,var(--accent) 20%,var(--border))}
.quiz-card{box-shadow:0 24px 42px rgba(8,34,48,.12);background:linear-gradient(180deg,var(--surface),color-mix(in srgb,var(--surface) 94%,#fff))}.quiz-top{align-items:center}.quiz-question{font-size:clamp(21px,2.7vw,28px);line-height:1.3}.options{gap:12px}.option{position:relative;align-items:flex-start;border-radius:16px;padding:14px 14px 14px 12px;border:1px solid var(--border);background:linear-gradient(180deg,var(--surface),var(--surface-2));box-shadow:none;transition:.18s}.option:hover{transform:translateY(-1px);border-color:color-mix(in srgb,var(--accent) 28%,var(--border));box-shadow:0 10px 20px rgba(8,34,48,.06)}.option.selected{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 8%,var(--surface))}.option.correct{border-color:var(--success);background:color-mix(in srgb,var(--success) 10%,var(--surface))}.option.incorrect{border-color:var(--danger);background:color-mix(in srgb,var(--danger) 9%,var(--surface))}.option .letter{width:34px;height:34px;border-radius:10px;background:var(--surface);border:1px solid var(--border);box-shadow:inset 0 1px 0 rgba(255,255,255,.6)}
.explanation{border-radius:16px;padding:14px 16px}.okbox{background:color-mix(in srgb,var(--success) 9%,var(--surface));border:1px solid color-mix(in srgb,var(--success) 22%,transparent)}.badbox{background:color-mix(in srgb,var(--danger) 8%,var(--surface));border:1px solid color-mix(in srgb,var(--danger) 20%,transparent)}
.stats-duo{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}.insights-card h2{margin-bottom:16px}.insight-list{display:grid;gap:12px}.insight-list div{padding:14px;border-radius:16px;background:var(--surface-2);display:grid;gap:4px}.insight-list span{font-size:11px;text-transform:uppercase;font-weight:900;letter-spacing:1px;color:var(--muted)}.insight-list strong{font-size:16px}
.exam-intro{background:linear-gradient(135deg,#0b2234,#0c4051 55%,#0d5960);color:#fff;overflow:hidden;position:relative}.exam-intro:after{content:"";position:absolute;right:-40px;bottom:-40px;width:180px;height:180px;border-radius:50%;background:rgba(255,255,255,.07)}.exam-intro p{color:#d4e8ed}.criteria.pro div,.criteria.result-criteria div{border-radius:16px}.exam-nav{background:linear-gradient(180deg,var(--surface),color-mix(in srgb,var(--surface) 92%,#fff))}
.result-dashboard .card{border-radius:22px}
.mistake-card{background:linear-gradient(180deg,var(--surface),color-mix(in srgb,var(--surface) 93%,#fff))}
.source-list a{border-radius:16px}
.bottom-nav{backdrop-filter:blur(16px)}

@media(max-width:1120px){.focus-strip,.course-overview,.test-toolbar{grid-template-columns:repeat(2,minmax(0,1fr))}.stats-duo{grid-template-columns:1fr}}
@media(max-width:680px){.focus-strip,.course-overview,.test-toolbar{grid-template-columns:1fr}.hero-side-stack{justify-items:stretch}.hero-side-card{max-width:none}.hero-premium{padding:24px}.option .letter{width:32px;height:32px}}

/* ===== Final internal polish v2.2 ===== */
.module-commandbar{display:grid;grid-template-columns:repeat(4,minmax(0,1fr)) auto;align-items:center;gap:10px;padding:10px;border:1px solid var(--border);border-radius:18px;background:color-mix(in srgb,var(--surface) 92%,transparent);box-shadow:var(--shadow);backdrop-filter:blur(14px)}
.module-commandbar>div{min-width:0;padding:7px 12px;border-right:1px solid var(--border);display:grid;gap:2px}.module-commandbar>div:last-of-type{border-right:0}.module-commandbar span{font-size:10px;font-weight:900;letter-spacing:1px;text-transform:uppercase;color:var(--muted)}.module-commandbar strong{font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.coverage-cloud{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 22px}.coverage-cloud span{display:inline-flex;align-items:center;gap:7px;padding:8px 10px;border:1px solid var(--border);background:var(--surface-2);border-radius:999px;font-size:12px;color:var(--text)}.coverage-cloud b{display:grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--surface);color:var(--accent-2);font-size:9px}.lesson-timeline{position:relative;display:grid;gap:10px}.lesson-timeline:before{content:"";position:absolute;left:27px;top:32px;bottom:32px;width:1px;background:linear-gradient(var(--accent),transparent)}.lesson-timeline .micro-lesson{position:relative;z-index:1;grid-template-columns:42px 1fr;padding:16px}.lesson-timeline .lesson-no{width:34px;height:34px;border-radius:50%;box-shadow:0 0 0 5px var(--surface);background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff}.lesson-meta{font-size:9px;letter-spacing:1.1px;font-weight:900;color:var(--muted);margin-bottom:4px}.module-bottom-nav{display:grid;grid-template-columns:auto 1fr auto;gap:10px;margin-top:18px}.disabled-link{opacity:.38;pointer-events:none}.mastery-label{font-size:12px;color:var(--muted);font-weight:800;margin-top:4px}.module-exam-weight{display:grid;gap:3px;text-align:center;background:linear-gradient(135deg,#203b37,#336458);color:#fff}.module-exam-weight span{font-size:10px;text-transform:uppercase;letter-spacing:1.2px;color:#91d3d7;font-weight:900}.module-exam-weight strong{font-size:34px;line-height:1.1}.module-exam-weight small{color:#d7e9ed}.lesson-header{margin-bottom:4px}

.flash-overview{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.flash-overview>div{padding:13px 15px;border-radius:16px;border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow);display:grid;gap:2px}.flash-overview span{font-size:10px;text-transform:uppercase;letter-spacing:1px;font-weight:900;color:var(--muted)}.flash-overview strong{font-size:20px}.flash-card.premium{position:relative;overflow:hidden;min-height:440px;padding:0;background:linear-gradient(145deg,#0b2536,#0b4f5d);border:1px solid rgba(255,255,255,.09);box-shadow:0 28px 55px rgba(6,28,41,.18);perspective:1000px}.flash-card.premium:before{content:"";position:absolute;inset:0;background:radial-gradient(420px 250px at 85% 15%,rgba(255,255,255,.11),transparent 62%),linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:auto,34px 34px,34px 34px}.flash-card.premium.flipped{background:linear-gradient(145deg,#0c3f48,#147f84)}.flash-card-inner{position:relative;z-index:1;width:100%;min-height:440px;display:grid;grid-template-rows:auto 1fr auto;align-items:center;padding:34px;color:#f1fbfd}.flash-card.premium .flash-label{justify-self:center;color:#88d8da;border:1px solid rgba(255,255,255,.12);padding:6px 10px;border-radius:999px;background:rgba(255,255,255,.06)}.flash-card.premium strong{color:#fff;max-width:680px;text-wrap:balance}.flash-card.premium small{color:#c7e2e7}.flash-corner{position:absolute;right:22px;bottom:18px;font-size:11px;font-weight:900;color:#79c8ca;border:1px solid rgba(255,255,255,.12);padding:5px 8px;border-radius:8px}.flash-progress{display:grid;grid-template-columns:1fr 44px;align-items:center;gap:10px;font-size:11px;font-weight:900;color:var(--muted)}.flash-tip{margin-top:22px;padding-top:16px;border-top:1px solid var(--border)}.flash-tip span{font-size:10px;letter-spacing:1px;text-transform:uppercase;color:var(--accent-2);font-weight:900}.flash-tip p{font-size:12px;color:var(--muted);margin:5px 0 0}.flash-instruction{text-align:center;color:var(--muted);font-size:12px;padding:4px}.confidence-row .button{min-height:48px}

.premium-exam-intro{min-height:320px;align-items:center}.exam-intro-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:20px}.exam-intro-actions>span{font-size:11px;color:#b8d5dc;text-transform:uppercase;letter-spacing:1px;font-weight:900}.exam-history-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.exam-history-strip>div{padding:14px 16px;border:1px solid var(--border);border-radius:16px;background:var(--surface);box-shadow:var(--shadow);display:grid;gap:2px}.exam-history-strip span{font-size:10px;letter-spacing:1px;text-transform:uppercase;color:var(--muted);font-weight:900}.exam-history-strip strong{font-size:20px}.premium-distribution .critical-unit{background:color-mix(in srgb,var(--warm) 11%,var(--surface-2));border:1px solid color-mix(in srgb,var(--warm) 32%,var(--border))}.premium-result{position:relative;overflow:hidden;background:linear-gradient(180deg,var(--surface),color-mix(in srgb,var(--surface) 92%,#fff))}.premium-result:after{content:"";position:absolute;width:180px;height:180px;border-radius:50%;right:-70px;top:-70px;background:color-mix(in srgb,var(--accent) 8%,transparent)}.result-next-step{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 20px;border-radius:18px;background:linear-gradient(135deg,#203b37,#336458);color:#fff;box-shadow:0 18px 36px rgba(6,34,48,.18)}.result-next-step>div:first-child{display:grid;gap:3px}.result-next-step span{font-size:10px;letter-spacing:1.2px;text-transform:uppercase;color:#8ed5d8;font-weight:900}.result-next-step strong{font-size:20px}.result-next-step small{color:#d3e6ea}.result-next-step .button.secondary{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);color:#fff}.review-item{border-radius:16px;transition:.16s}.review-item:hover{border-color:color-mix(in srgb,var(--accent) 25%,var(--border));box-shadow:0 10px 22px rgba(8,34,48,.05)}

.mistake-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.mistake-summary>div{padding:14px 16px;border-radius:16px;border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow);display:grid;gap:3px}.mistake-summary span{font-size:10px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);font-weight:900}.mistake-summary strong{font-size:17px}.mistake-answer{display:grid;gap:4px;padding:12px 13px;border-radius:14px;background:color-mix(in srgb,var(--success) 7%,var(--surface-2));border:1px solid color-mix(in srgb,var(--success) 15%,var(--border));margin:11px 0}.mistake-answer span{font-size:9px;letter-spacing:1px;text-transform:uppercase;color:var(--success);font-weight:900}.mistake-answer strong{font-size:13px}.mistake-card>p{color:var(--muted);line-height:1.55}.premium-empty{min-height:360px;padding:40px}.premium-empty h2{font-size:28px;margin:13px 0 4px}.premium-empty p{max-width:520px}

.bottom-nav a.active{background:rgba(255,255,255,.11);color:#fff;border-radius:12px}.bottom-nav a.active span{color:#71d1d2}.bottom-nav a{transition:.16s}

@media(max-width:1120px){.module-commandbar{grid-template-columns:repeat(4,1fr)}.module-commandbar>.button{grid-column:1/-1}.module-commandbar>div:nth-child(4){border-right:0}.flash-overview,.exam-history-strip{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:680px){.module-commandbar{grid-template-columns:repeat(2,1fr)}.module-commandbar>div{border-right:0;border-bottom:1px solid var(--border)}.module-bottom-nav{grid-template-columns:1fr}.flash-overview,.exam-history-strip,.mistake-summary{grid-template-columns:1fr}.flash-card.premium,.flash-card-inner{min-height:360px}.flash-card-inner{padding:26px 20px}.result-next-step{align-items:flex-start;flex-direction:column}.result-next-step .row{width:100%}.result-next-step .button{flex:1}.coverage-cloud span{border-radius:13px;align-items:flex-start}.lesson-timeline:before{display:none}.lesson-timeline .micro-lesson{grid-template-columns:36px 1fr}.module-exam-weight{display:none}}

@media(max-width:760px){.brand-logo-full{display:none}.brand-logo-icon,.brand-copy{display:flex}.brand-copy{flex-direction:column;gap:0}.brand-copy strong{font-size:17px;line-height:1.05}.brand-copy small{font-size:8px}}

/* Mobile navigation readability */
@media(max-width:980px){.bottom-nav{height:72px;padding:7px 6px}.bottom-nav a{font-weight:850}.bottom-nav a span{font-size:21px}.bottom-nav a small{font-size:15px;line-height:1.1}.main{padding-bottom:106px}}
.public-site-link{display:inline-flex;margin-bottom:12px;color:var(--muted);font-size:.86rem;font-weight:800;text-decoration:none}.public-site-link:hover{color:var(--accent)}
.data-backup{display:flex;align-items:center;justify-content:space-between;gap:24px}.data-backup>div:first-child{max-width:720px}.data-backup h2{margin:4px 0}.data-backup p{margin:0;color:var(--muted)}
@media(max-width:760px){.data-backup{align-items:flex-start;flex-direction:column}.data-backup .row{width:100%}.data-backup .button{flex:1}}

/* RumboApto visual direction: warm chart paper, petroleum green and copper. */
:root{--navy:#123c3b;--navy-2:#1d514b;--navy-3:#357269;--surface:#fcfaf6;--surface-2:#f5f1e8;--surface-3:#ece8dc;--text:#202829;--muted:#586862;--border:#d8ded5;--accent:#9a5b32;--accent-2:#774524;--warm:#c88445;--danger:#b95646;--success:#3e8067;--sea:#dce8dd;--shadow:0 12px 32px rgba(25,49,44,.08)}
html[data-theme="dark"]{--surface:#203230;--surface-2:#17282a;--surface-3:#29413d;--text:#f6f2e9;--muted:#bac9be;--border:#416158;--accent:#e3ad75;--accent-2:#f2c596;--sea:#294941;--shadow:0 14px 34px rgba(0,0,0,.24)}
.topbar{background:rgba(23,40,42,.97)}.sidebar{background:#172f30}.nav-list a:hover,.nav-list a.active{background:#2a554d}.nav-section{color:#abc3b2}.nav-list a{color:#d3e1d6}
.button{color:#fff;background:#87502f}.button:hover{background:#6e3e25}.button:focus-visible,.nav-list a:focus-visible,.mission:focus-visible{outline:3px solid #ddaa71;outline-offset:2px}
.dashboard-hero{background:linear-gradient(135deg,#17282a,#24554d 72%,#7b6043)}.dashboard-hero p{color:#e2ebe2}.hero-kicker{color:#e9bd88}.ring{background:conic-gradient(#dfad73 var(--value),rgba(255,255,255,.13) 0)}.ring:before{background:#203b37}.ring span{color:#d3e1d6}
.page-head h1,.dashboard-hero h2{font-family:Georgia,'Times New Roman',serif;letter-spacing:-.035em}.metric-card.highlight{border-color:#bfaa8c}.mission-index{color:#774524}.badge.new{background:#8b5432}.feature-card:hover{border-color:#bb916f}
.brand-logo-full{filter:hue-rotate(-155deg) saturate(.7)}

.readiness-note{font-size:13px;color:var(--muted);margin:11px 4px 0;line-height:1.5}
/* Preparation route: short, readable cues across course, tests and review. */
.diagnostic-intro,.course-priority{display:flex;align-items:center;justify-content:space-between;gap:24px;background:linear-gradient(115deg,var(--surface),var(--surface-3));border-color:color-mix(in srgb,var(--warm) 38%,var(--border))}
.diagnostic-intro h2,.course-priority h2{font:700 clamp(24px,3vw,32px)/1.18 Georgia,'Times New Roman',serif;letter-spacing:-.025em;margin:2px 0 7px}
.diagnostic-intro p,.course-priority p{color:var(--muted);margin:0;max-width:62ch}
.diagnostic-intro .button,.course-priority .button{flex:0 0 auto}
.study-path{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:0 0 4px;color:var(--muted);font-size:13px}
.study-path a{text-decoration:none;display:inline-flex;align-items:center;gap:8px;border:1px solid var(--border);border-radius:999px;background:var(--surface);padding:8px 12px;font-weight:750}
.study-path a.active{background:var(--navy);color:#fff;border-color:var(--navy)}.study-path b{font-size:11px;color:var(--accent-2)}.study-path .active b{color:#eac297}
@media(max-width:720px){.diagnostic-intro,.course-priority{align-items:stretch;flex-direction:column}.study-path{gap:5px}.study-path a{padding:7px 9px}.study-path>span{display:none}}

/* Guía contextual, v3.9 */
.guide-summary{display:flex;justify-content:space-between;align-items:center;gap:22px;padding:26px}.guide-summary h2{font-size:clamp(22px,3vw,32px);margin:8px 0}.guide-summary p{line-height:1.65}.guide-facts{display:flex;gap:8px;flex-wrap:wrap}.guide-facts span{background:rgba(109,159,152,.15);border-radius:99px;padding:7px 10px;font-size:13px;font-weight:750}.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.guide-grid .card{padding:25px}.guide-grid h2{margin:8px 0 18px}.guide-grid p,.guide-method p{line-height:1.65}.guide-mistakes details{border-top:1px solid var(--line);padding:12px 0}.guide-mistakes summary{cursor:pointer;font-weight:750}.guide-mistakes small{opacity:.75}.guide-method{padding:22px}.guide-method .row{margin-top:12px}@media(max-width:760px){.guide-summary{display:block}.guide-summary .button{margin-top:16px}.guide-grid{grid-template-columns:1fr}}
.mission.is-done{background:rgba(62,128,103,.09);border-color:rgba(62,128,103,.3)}.mission.is-done .mission-index{background:#3e8067;color:white}.mission.is-done strong{color:#376955}

.search-panel{padding:24px}.search-panel label{display:block;font-weight:800;margin-bottom:10px}.search-row{display:flex;gap:10px}.search-row input{min-width:0;flex:1;border:1px solid var(--line);border-radius:12px;padding:12px 15px;font:inherit;background:var(--surface,#fff);color:inherit}.search-results{display:grid;gap:12px}.search-hit{padding:22px}.search-hit h2{font-size:20px;margin:9px 0}.search-hit p{line-height:1.6}.search-hit small{display:block;opacity:.75;margin-bottom:15px}@media(max-width:600px){.search-row{flex-direction:column}}
.exam-resume-banner{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px 22px;margin-bottom:14px;border-color:#c88445}.exam-resume-banner p{margin:5px 0 0}.exam-resume-banner .button{white-space:nowrap}@media(max-width:600px){.exam-resume-banner{display:block}.exam-resume-banner .button{margin-top:12px}}
.storage-warning{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;margin-bottom:14px;border-color:#c88445;background:#fff6e9}.storage-warning p{margin:0;max-width:56ch}.storage-warning strong{white-space:nowrap}@media(max-width:720px){.storage-warning{display:block}.storage-warning p{margin:8px 0}.storage-warning .button{margin-top:6px}}

.critical-row small{display:block;margin-top:6px;color:var(--muted);font-size:11px}.critical-row small a{color:var(--accent-2);font-weight:800}