:root{--manual-navy:#0f2a44;--manual-blue:#1f6b8c;--manual-sky:#eaf5f8;--manual-orange:#ff7a00;--manual-ink:#142c40;--manual-muted:#66798a}.manual-page{background:#f4f7f9}.manual-topbar{height:76px;padding:0 clamp(20px,5vw,72px);display:flex;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid #dce6ec;position:sticky;top:0;z-index:50}.manual-topbar nav{display:flex;align-items:center;gap:18px}.manual-brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--manual-navy);font-weight:900;letter-spacing:.08em}.manual-brand img{width:40px}.manual-brand small{display:block;font-size:8px;opacity:.6;letter-spacing:.16em}.manual-plain-button{border:0;background:transparent;color:var(--manual-blue);font:inherit;font-size:13px;font-weight:800;cursor:pointer}.manual-hero{min-height:500px;padding:70px clamp(24px,8vw,120px);display:grid;grid-template-columns:minmax(0,1.3fr) minmax(320px,.7fr);align-items:center;gap:60px;color:#fff;background:radial-gradient(circle at 78% 20%,#2f86a66b,transparent 26%),linear-gradient(130deg,#0b2236,#10334e 62%,#164966)}.manual-hero-copy{max-width:760px}.manual-eyebrow{font-size:11px;text-transform:uppercase;letter-spacing:.16em;font-weight:900;color:#61b4d2}.manual-hero h1{font-size:clamp(38px,5vw,64px);line-height:1.03;letter-spacing:-.04em;margin:14px 0 22px}.manual-hero p{font-size:18px;line-height:1.7;color:#d0e0eb;max-width:700px}.manual-hero-actions{display:flex;align-items:center;gap:22px;margin-top:30px}.manual-video-button{color:#fff}.manual-hero-panel{background:#ffffff0d;border:1px solid #ffffff24;border-radius:20px;padding:10px 28px;backdrop-filter:blur(10px)}.manual-hero-panel div{padding:23px 0;border-top:1px solid #ffffff1c;display:flex;align-items:baseline;justify-content:space-between;gap:20px}.manual-hero-panel div:first-child{border-top:0}.manual-hero-panel strong{font-size:34px}.manual-hero-panel span{color:#c7d9e6;font-size:13px}.manual-section{max-width:1280px;margin:auto;padding:72px 28px}.manual-section-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:25px}.manual-section-heading h2{font-size:32px;margin:7px 0}.manual-section-heading p{color:var(--manual-muted);margin:0}.profile-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.profile-card{border:1px solid #dbe5eb;border-radius:17px;background:#fff;padding:22px;text-align:left;display:flex;min-height:190px;flex-direction:column;align-items:flex-start;cursor:pointer;transition:.2s;color:var(--manual-ink)}.profile-card:hover,.profile-card.active{border-color:#5ca4bd;box-shadow:0 18px 40px #0f2a4414;transform:translateY(-3px)}.profile-card i{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:#e9f4f8;color:var(--manual-blue);font-style:normal;font-weight:900}.profile-card span{margin:18px 0 auto}.profile-card strong,.profile-card small{display:block}.profile-card strong{font-size:18px}.profile-card small{color:var(--manual-muted);line-height:1.45;margin-top:6px}.profile-card b{font-size:12px;color:var(--manual-blue)}.manual-learning{max-width:1440px;margin:20px auto 80px;padding:0 28px;display:grid;grid-template-columns:290px minmax(0,1fr);gap:20px;align-items:start}.manual-learning[hidden]{display:none}.manual-course-sidebar,.manual-lesson{background:#fff;border:1px solid #dce6ec;border-radius:18px;box-shadow:0 10px 35px #0f2a4409}.manual-course-sidebar{position:sticky;top:96px;overflow:hidden}.manual-course-profile{padding:19px;display:grid;grid-template-columns:42px 1fr auto;align-items:center;gap:11px;background:var(--manual-navy);color:#fff}.manual-course-profile>span{width:42px;height:42px;border-radius:12px;background:#207da1;display:grid;place-items:center;font-weight:900}.manual-course-profile small,.manual-course-profile strong{display:block}.manual-course-profile small{color:#9fb8ca;font-size:9px;text-transform:uppercase}.manual-course-profile button{border:0;background:transparent;color:#8ed3eb;font-size:10px;cursor:pointer}.manual-progress-block{padding:18px;border-bottom:1px solid #e2e9ee}.manual-progress-block>div:first-child{display:flex;justify-content:space-between;font-size:12px}.manual-progress{height:7px;background:#e7edf1;border-radius:999px;margin-top:10px;overflow:hidden}.manual-progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--manual-blue),#3ba0c6);transition:.25s}.manual-course-nav{padding:10px;display:grid;gap:3px;max-height:55vh;overflow:auto}.manual-course-nav button{border:0;background:transparent;border-radius:10px;padding:11px;text-align:left;color:#4b6274;font:inherit;font-size:12px;display:grid;grid-template-columns:26px 1fr 16px;align-items:center;gap:8px;cursor:pointer}.manual-course-nav button:hover{background:#f3f7f9}.manual-course-nav button.active{background:#eaf4f8;color:#155c79;font-weight:800}.manual-course-nav button.done b{background:#1f8c89;color:#fff}.manual-course-nav b{width:24px;height:24px;border-radius:50%;display:grid;place-items:center;background:#eef2f5;font-size:10px}.manual-course-nav i{font-style:normal;color:#1f8c89}.manual-course-help{margin:10px;padding:16px;border-radius:12px;background:#fff6ee;font-size:12px}.manual-course-help p{color:#7a5b44;line-height:1.5}.manual-course-help button{border:0;background:transparent;color:#b64d00;font-weight:800;padding:0;cursor:pointer}.manual-lesson{padding:32px}.lesson-breadcrumb{display:flex;gap:8px;color:#7b8c99;font-size:11px;text-transform:uppercase;letter-spacing:.08em}.lesson-heading{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin:18px 0 28px}.lesson-heading>div{display:flex;gap:16px}.lesson-icon{width:58px;height:58px;border-radius:16px;background:#e9f4f8;color:var(--manual-blue);display:grid;place-items:center;font-size:26px;flex:0 0 58px}.lesson-heading h2{font-size:31px;margin:4px 0 5px}.lesson-heading p{color:var(--manual-muted);margin:0}.lesson-access{font-size:10px;padding:7px 10px;border-radius:999px;background:#e6f6f2;color:#08766e;font-weight:850}.lesson-layout{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(310px,.85fr);gap:28px}.lesson-content h3{font-size:17px;margin:25px 0 12px}.lesson-callout{padding:17px;border-radius:12px;background:#f0f7fa;border-left:4px solid var(--manual-blue)}.lesson-callout p{margin:5px 0 0;color:var(--manual-muted);line-height:1.55}.lesson-steps{list-style:none;padding:0;margin:0;counter-reset:lesson}.lesson-steps li{counter-increment:lesson;display:grid;grid-template-columns:34px 1fr;gap:11px;padding:13px 0;border-top:1px solid #e4eaee;line-height:1.5}.lesson-steps li:first-child{border-top:0}.lesson-steps li:before{content:counter(lesson);width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#eaf4f8;color:var(--manual-blue);font-size:12px;font-weight:900}.lesson-result,.lesson-warning{display:flex;gap:12px;padding:15px;border-radius:12px;margin-top:18px}.lesson-result{background:#eaf8f5;color:#106d66}.lesson-warning{background:#fff5eb;color:#874414}.lesson-result>span,.lesson-warning>span{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#fff;font-weight:900;flex:0 0 28px}.lesson-result p,.lesson-warning p{margin:4px 0 0;line-height:1.45}.lesson-preview{border:1px solid #dce5ea;border-radius:15px;overflow:hidden;align-self:start;background:#f4f7f9}.preview-browser{height:40px;background:#fff;border-bottom:1px solid #dce5ea;display:flex;align-items:center;gap:6px;padding:0 12px}.preview-browser>span{width:8px;height:8px;border-radius:50%;background:#dfe6eb}.preview-browser>span:first-child{background:#ff8a72}.preview-browser small{margin-left:7px;color:#8796a2}.preview-shell{min-height:300px;display:grid;grid-template-columns:112px 1fr}.preview-sidebar{background:#102d45;color:#fff;padding:14px 8px}.preview-logo{width:29px;height:29px;border-radius:9px;background:#247b9c;display:grid;place-items:center;font-weight:900;margin:0 6px 18px}.preview-sidebar button{width:100%;border:0;background:transparent;color:#b9cbd7;text-align:left;padding:8px;border-radius:7px;font-size:8px;margin:2px 0}.preview-sidebar button.active{background:#237b9c;color:#fff}.preview-content{padding:38px 24px}.preview-content>small{font-size:8px;color:var(--manual-blue);font-weight:900;letter-spacing:.12em}.preview-content>strong{display:block;font-size:20px;margin:6px 0}.preview-content>p{font-size:10px;line-height:1.5;color:#728391}.preview-focus{display:flex;align-items:center;gap:8px;margin-top:28px;color:var(--manual-orange);font-size:10px;font-weight:800}.preview-focus i{font-style:normal;font-size:20px;animation:manualPoint 1s infinite alternate}.preview-caption{font-size:10px;color:#758795;text-align:center;margin:0;padding:10px;background:#fff}.lesson-actions{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;margin-top:30px;padding-top:22px;border-top:1px solid #e2e9ee}.lesson-actions>[data-next]{justify-self:end}.lesson-complete{border:0;background:transparent;color:var(--manual-blue);font:inherit;font-size:12px;font-weight:800;cursor:pointer}.lesson-complete span{font-size:18px;vertical-align:middle}.lesson-complete.done{color:#08766e}.manual-help-section{padding-top:30px}.help-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.help-grid details{background:#fff;border:1px solid #dce6ec;border-radius:13px;padding:18px}.help-grid summary{font-weight:800;cursor:pointer}.help-grid p{color:var(--manual-muted);line-height:1.55;font-size:13px}.manual-footer{padding:30px clamp(24px,8vw,120px);background:var(--manual-navy);color:#fff;display:flex;justify-content:space-between;align-items:center}.manual-footer strong,.manual-footer span{display:block}.manual-footer span{font-size:11px;color:#a9c0d0;margin-top:4px}.manual-footer a{color:#84d2ec;text-decoration:none;font-weight:800}.manual-dialog{width:min(680px,calc(100% - 30px));border:0;border-radius:18px;padding:30px;box-shadow:0 30px 90px #0006;color:var(--manual-ink)}.manual-dialog::backdrop{background:#071b2dcc}.dialog-close{position:absolute;right:14px;top:10px;border:0;background:transparent;font-size:27px;cursor:pointer}.manual-dialog h2{font-size:27px}.manual-dialog ol,.manual-dialog dl{line-height:1.7}.manual-dialog dt{font-weight:900;color:var(--manual-blue);margin-top:12px}.manual-dialog dd{margin:2px 0;color:var(--manual-muted)}@keyframes manualPoint{to{transform:translateX(5px)}}@media(max-width:1050px){.profile-grid{grid-template-columns:repeat(2,1fr)}.manual-learning{grid-template-columns:240px 1fr}.lesson-layout{grid-template-columns:1fr}.lesson-preview{max-width:560px}.help-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:760px){.manual-topbar{height:auto;min-height:66px;padding:10px 16px}.manual-topbar .manual-plain-button{display:none}.manual-hero{min-height:0;padding:55px 22px;grid-template-columns:1fr}.manual-hero-panel{display:none}.manual-hero h1{font-size:39px}.manual-hero p{font-size:16px}.profile-grid{grid-template-columns:1fr}.profile-card{min-height:150px}.manual-learning{display:block;padding:0 14px}.manual-course-sidebar{position:relative;top:auto;margin-bottom:14px}.manual-course-nav{display:flex;overflow:auto}.manual-course-nav button{min-width:170px}.manual-course-help{display:none}.manual-lesson{padding:22px 17px}.lesson-heading{display:block}.lesson-heading>div{margin-bottom:12px}.lesson-heading h2{font-size:26px}.lesson-access{display:inline-flex}.lesson-actions{grid-template-columns:1fr 1fr;gap:10px}.lesson-complete{grid-column:1/-1;grid-row:1}.help-grid{grid-template-columns:1fr}.manual-footer{align-items:flex-start;gap:20px;flex-direction:column}}