@font-face{font-family:Inter;src:url('/assets/inter.ttf') format('truetype');font-style:normal;font-weight:100 900;font-display:swap}
:root{color-scheme:dark;--bg:#060d18;--surface:#0b1728;--surface2:#101e31;--surface3:#15263a;--text:#f3f8ff;--muted:#a9bdd2;--soft:#8097ae;--line:#263b50;--blue:#278dff;--cyan:#51d9f4;--violet:#9587f7;--green:#38d49f;--shadow:0 22px 70px #02091080;font-family:'DM Sans',Inter,system-ui,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-size:17px;line-height:1.7}button,input{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}a:hover{color:#fff}img{max-width:100%}h1,h2,h3,h4{font-family:'Space Grotesk',Inter,system-ui,sans-serif;line-height:1.15;letter-spacing:-.035em;margin:0 0 .65em}h1{font-size:clamp(2.65rem,4.5vw,4.75rem)}h2{font-size:clamp(1.75rem,2.6vw,2.65rem)}h3{font-size:1.28rem}p{margin:.15em 0 1.2em;color:var(--muted)}strong{font-weight:700;color:var(--text)}small{font-size:.82rem}.container{width:min(1220px,calc(100% - 48px));margin-inline:auto}.narrow{max-width:850px}.section{padding:92px 0}.section-tight{padding:0 0 90px}.section-alt{background:linear-gradient(180deg,#0b1727,#091321);border-top:1px solid #1b2c40;border-bottom:1px solid #1b2c40}.eyebrow{font-size:.76rem;font-weight:700;letter-spacing:.16em;color:var(--cyan);text-transform:uppercase}.with-line:before{content:'';display:inline-block;width:25px;height:1px;background:var(--cyan);vertical-align:middle;margin-right:12px}.lead{font-size:1.13rem;line-height:1.75;max-width:650px}.subtle{color:var(--soft);font-size:.88rem}.center{text-align:center}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}
.site-header{position:relative;z-index:20;background:#07111ee8;border-bottom:1px solid #24384b;backdrop-filter:blur(20px)}.header-inner{height:76px;width:min(1360px,calc(100% - 48px));margin:auto;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:inline-flex;align-items:center;gap:10px;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.2rem;white-space:nowrap}.brand strong{color:var(--cyan)}.brand-mark{color:var(--cyan);font-size:1.7rem;line-height:1;filter:drop-shadow(0 0 10px #278dff80)}.desktop-nav,.header-actions{display:flex;align-items:center;gap:4px}.desktop-nav a{padding:10px 13px;color:#b7c8d9;font-weight:600;font-size:.9rem;border-radius:9px}.desktop-nav a:hover,.desktop-nav a.active{color:#fff;background:#11253b}.header-actions{gap:8px}.icon-button{width:38px;height:38px;border:1px solid transparent;background:transparent;color:#c0d3e5;display:inline-grid;place-items:center;border-radius:10px;font-size:1.25rem}.icon-button:hover{background:var(--surface3);border-color:var(--line)}.menu-button{display:none}.mobile-nav{display:none}.session-menu{position:relative}.session-menu summary{list-style:none;cursor:pointer;border:1px solid #2d5267;background:#102b38;color:#7ff1c6;border-radius:9px;padding:7px 12px;font-size:.83rem;font-weight:700}.session-menu summary::-webkit-details-marker{display:none}.session-menu>div{position:absolute;right:0;top:43px;min-width:170px;background:#0f1d30;border:1px solid var(--line);border-radius:12px;padding:8px;box-shadow:var(--shadow)}.session-menu a,.session-menu button{display:block;width:100%;padding:9px 10px;border:0;background:transparent;text-align:left;border-radius:7px;color:var(--text);font-size:.88rem}.session-menu a:hover,.session-menu button:hover{background:#1a3048}.button{display:inline-flex;align-items:center;justify-content:center;gap:14px;border:1px solid #4aafff;background:linear-gradient(135deg,#287eff,#168be9);color:white!important;padding:12px 21px;border-radius:9px;font-weight:700;font-size:.92rem;line-height:1.25;box-shadow:0 5px 22px #167dff38;transition:transform .2s,filter .2s}.button:hover{filter:brightness(1.12);transform:translateY(-2px)}.button.small{padding:9px 16px}.button.secondary{border-color:#34506d;background:#10243a;box-shadow:none}.button.full{width:100%}.text-link{color:var(--cyan);font-weight:700;white-space:nowrap}
.hero{min-height:605px;position:relative;overflow:hidden;background:radial-gradient(circle at 75% 42%,#0b3961 0,#081827 30%,#06101e 65%)}.hero:before{content:'';position:absolute;inset:0;background-image:linear-gradient(#4a82bb10 1px,transparent 1px),linear-gradient(90deg,#4a82bb10 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(90deg,transparent 8%,#000 85%)}.hero-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:35px;min-height:605px}.hero-copy{position:relative;z-index:1;padding:70px 0}.hero h1{max-width:710px;margin:18px 0 24px}.hero h1 em{font-style:normal;background:linear-gradient(90deg,#7bdcff,#2589ff);background-clip:text;color:transparent}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 40px}.hero-stats{display:flex;gap:38px;border-top:1px solid #27435c;padding-top:23px;max-width:600px}.hero-stats div{display:flex;flex-direction:column}.hero-stats strong{font-family:'Space Grotesk';font-size:1.45rem}.hero-stats span{font-size:.8rem;color:var(--soft)}.hero-art{height:500px;position:relative;display:grid;place-items:center;isolation:isolate}.hero-art:before{content:'';position:absolute;width:330px;height:330px;border-radius:50%;background:#2289ff33;filter:blur(65px)}.art-orbit{position:absolute;border:1px solid #2a7da866;border-radius:50%;transform:rotateX(65deg) rotateZ(-20deg)}.orbit-one{width:510px;height:510px}.orbit-two{width:360px;height:360px;border-style:dashed}.art-center{width:215px;height:215px;border:1px solid #5dafe8;border-radius:32px;background:linear-gradient(145deg,#164b7a,#0a1b33 65%);box-shadow:0 0 45px #2b9cff77,0 25px 70px #0009;display:flex;flex-direction:column;align-items:center;justify-content:center;transform:rotate(-8deg);z-index:1}.art-center span{font-size:5rem;color:#b5e9ff;line-height:1}.art-center strong{font-family:'Space Grotesk';font-size:1.4rem}.art-center small{color:#b4cbdc}.art-chip{position:absolute;border:1px solid #467293;background:#102942ee;border-radius:12px;padding:11px 15px;color:var(--cyan);box-shadow:0 12px 30px #0008;z-index:2;display:flex;gap:9px;align-items:center;font-size:1.15rem}.art-chip span{color:#d7e9f5;font-size:.78rem;font-weight:700}.chip-one{top:68px;left:15px}.chip-two{top:120px;right:0}.chip-three{bottom:93px;left:13px}.chip-four{bottom:55px;right:25px}.art-floor{position:absolute;bottom:35px;width:75%;height:45px;background:#1b89ec55;filter:blur(30px)}
.section-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:30px}.section-heading h2{margin:8px 0}.section-heading p{margin:0}.featured-card{display:flex;align-items:center;gap:26px;padding:32px;border:1px solid #326082;background:linear-gradient(110deg,#10263f,#0b1a2b 70%);border-radius:19px;box-shadow:var(--shadow)}.featured-icon{min-width:96px;height:96px;display:grid;place-items:center;border-radius:20px;color:#fff;font-size:4rem;background:linear-gradient(135deg,#edac59,#9b5a27);box-shadow:inset 0 0 25px #ffd38477,0 9px 30px #0006}.featured-card>div:nth-child(2){flex:1}.featured-card h3,.featured-card h2{margin:7px 0;font-size:1.85rem}.featured-card p{margin:0 0 10px}.pill{display:inline-flex;align-items:center;background:#184d60;border:1px solid #24758a;color:#89edf3;border-radius:100px;padding:3px 10px;font-size:.7rem;font-weight:800;letter-spacing:.06em}.pill.success{background:#123c31;color:#72e8b0}.meta-line{display:flex;gap:20px;flex-wrap:wrap;color:#b9cddd;font-size:.84rem;font-weight:600}.meta-line span:before{content:'◌';color:var(--cyan);margin-right:6px}.card-grid{display:grid;gap:18px}.card-grid.four{grid-template-columns:repeat(4,1fr)}.card-grid.three{grid-template-columns:repeat(3,1fr)}.card,.lab-card{display:block;position:relative;border:1px solid var(--line);background:linear-gradient(150deg,#102035,#0c1829);border-radius:15px;padding:28px;min-height:205px;transition:transform .2s,border-color .2s}.card.interactive:hover,.lab-card:hover{transform:translateY(-4px);border-color:#3489c5}.card-icon{display:inline-grid;place-items:center;width:45px;height:45px;color:var(--cyan);background:#103451;border:1px solid #255574;border-radius:11px;font-size:1.5rem;margin-bottom:18px}.card h3,.lab-card h3{margin:0 0 8px}.card p,.lab-card p{font-size:.93rem;margin:0}.card-arrow{position:absolute;right:20px;top:20px;color:var(--cyan);font-size:1.2rem}.diagram{border:1px solid #315778;background:radial-gradient(circle at 50% 30%,#153c60,#0b1b2e 70%);border-radius:17px;margin:0;padding:24px;overflow:hidden}.diagram-toolbar{display:flex;justify-content:space-between;gap:15px}.live-indicator{color:#8ee7c9;font-size:.75rem;font-weight:700}.flow-track{display:flex;align-items:center;justify-content:space-around;gap:10px;padding:40px 0 30px}.flow-node{width:145px;min-height:124px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:linear-gradient(145deg,#163958,#102139);border:1px solid #3781b5;border-radius:13px;box-shadow:0 8px 26px #0005}.node-icon{font-size:2.2rem;color:#49b6ff;line-height:1}.flow-node strong{font-size:.9rem}.flow-arrow{font-size:1.8rem;color:var(--cyan);text-shadow:0 0 12px var(--blue);animation:trace 3s ease-in-out infinite}.diagram figcaption,.architecture figcaption{font-size:.86rem;color:#a8c0d4}.cta-panel{text-align:center;padding:58px 30px;border:1px solid #3d698b;border-radius:20px;background:radial-gradient(circle at 50% 0,#174772,#0c1c30 65%)}.cta-panel h2{margin:10px auto;max-width:650px}.cta-panel p{margin:0 auto 23px;max-width:610px}.footer{border-top:1px solid var(--line);background:#07101d;padding:34px 0}.footer-inner{display:flex;justify-content:space-between;gap:20px}.footer-inner p{font-size:.8rem;margin:4px 0}.footer-inner>div:last-child{display:flex;gap:22px;align-items:center;font-size:.86rem;color:var(--muted)}
.page-hero{padding:75px 0 45px}.page-hero h1{margin:9px 0 15px}.page-hero p{max-width:720px}.coming-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:23px}.coming-grid>div{border:1px solid var(--line);border-radius:12px;padding:20px;font-family:'Space Grotesk';font-weight:700;color:#c8d8e5;background:#0b1726}.coming-grid small{display:block;font-family:'DM Sans';font-weight:500;color:var(--soft)}.activate-wrap{width:min(490px,calc(100% - 32px));margin:42px auto 90px}.back-link{color:var(--muted);font-size:.88rem}.activate-card{margin-top:22px;padding:40px;border:1px solid #345a78;border-radius:17px;background:radial-gradient(circle at 50% -20%,#12406c,#0d1c2e 60%);box-shadow:var(--shadow);text-align:center}.activate-icon{display:grid;place-items:center;width:65px;height:65px;margin:0 auto 20px;background:#11456e;border:1px solid #3da9e9;border-radius:17px;color:#6ad3ff;font-size:2.3rem;box-shadow:0 0 24px #1c99ed55}.activate-card h1{font-size:2.15rem;margin:7px 0}.activate-card p{font-size:.92rem}.activate-card form{text-align:left;margin-top:28px}.activate-card label{display:block;color:#dbe9f5;font-weight:700;font-size:.86rem;margin-bottom:8px}.activate-card input,.search-form input{width:100%;outline:none;border:1px solid #3a6685;background:#081525;color:#fff;border-radius:9px;padding:12px 14px}.activate-card input:focus,.search-form input:focus{border-color:#5bcaff;box-shadow:0 0 0 3px #2a9fff33}.activate-card input::placeholder{color:#7893aa}.form-error{min-height:22px;color:#ff9caa!important;font-size:.82rem!important;margin:4px 0 10px!important}.access-benefits{text-align:left;border-top:1px solid var(--line);padding-top:23px;margin-top:26px;display:grid;gap:7px;color:#d2e1ed;font-size:.87rem}.access-benefits span{color:var(--green);margin-right:9px}
.course-hero{padding:70px 0;background:radial-gradient(circle at 78% 45%,#123b5f,#081422 53%);border-bottom:1px solid var(--line)}.course-hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}.course-hero h1{margin:14px 0}.course-hero .meta-line{margin:25px 0}.course-progress{margin-top:23px;max-width:360px}.course-progress strong{font-size:.86rem}.progress-bar{height:7px;border-radius:99px;background:#23384d;overflow:hidden;margin:8px 0}.progress-bar span{display:block;height:100%;background:linear-gradient(90deg,#2b91ff,#43d4c2);border-radius:inherit}.architecture{position:relative;margin:0;padding:27px;border:1px solid #3a739a;border-radius:18px;background:linear-gradient(150deg,#0d2943,#0a192b);box-shadow:var(--shadow)}.architecture-title,.arch-label{color:#80bde6;font-size:.68rem;font-weight:800;letter-spacing:.12em}.arch-control{margin:22px auto 8px;max-width:330px;display:flex;align-items:center;gap:15px;padding:14px;border:1px solid #4f9ec8;border-radius:11px;background:#144a70}.arch-control>span{font-size:2rem;color:#a3e2ff}.arch-control strong,.arch-control small,.arch-nodes strong,.arch-nodes small{display:block}.arch-control small,.arch-nodes small{color:#abc9d9;font-size:.72rem}.arch-connector{text-align:center;color:#6ed4f6;margin:8px}.arch-data{border:1px dashed #4e8dae;border-radius:12px;padding:18px}.arch-nodes{display:flex;gap:14px;margin-top:12px}.arch-nodes>div{flex:1;border:1px solid #3e749b;border-radius:9px;background:#122c47;padding:12px;display:grid;grid-template-columns:auto 1fr;column-gap:10px}.arch-nodes span{grid-row:span 2;color:#72d5ff;font-size:1.6rem}.architecture figcaption{margin-top:15px}.module-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.module-card{display:flex;align-items:start;gap:17px;position:relative;min-height:140px;padding:21px 42px 20px 20px;border:1px solid var(--line);background:#0e1c2e;border-radius:13px}.module-card:hover{border-color:#3a8cbe;background:#11243a}.module-number{font-family:'Space Grotesk';font-size:1.2rem;color:#63bbf2;border:1px solid #296182;background:#113652;border-radius:9px;padding:6px 10px}.module-card h3{font-size:1.1rem;margin:2px 0 5px}.module-card p{font-size:.84rem;line-height:1.45;margin:0 0 6px}.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:13px}.check-grid span{color:#d5e4ef}.check-grid span::first-letter{color:var(--green)}
.learning-layout{display:grid;grid-template-columns:280px minmax(0,1fr) 220px;max-width:1600px;margin:auto;min-height:calc(100vh - 76px)}.course-sidebar{border-right:1px solid var(--line);background:#081523;position:sticky;top:0;height:100vh;overflow:hidden}.side-heading{padding:24px 16px;border-bottom:1px solid var(--line)}.side-heading>a{display:block;font-family:'Space Grotesk';font-size:1rem;font-weight:700}.side-heading small{color:var(--muted)}.side-scroll{height:calc(100vh - 106px);overflow:auto;padding:11px}.side-scroll details{border:1px solid #1b354d;border-radius:9px;margin-bottom:7px;background:#0d1c2e}.side-scroll details[open]{border-color:#315d7c}.side-scroll summary{list-style:none;display:flex;justify-content:space-between;gap:8px;cursor:pointer;padding:11px;font-size:.82rem;font-weight:700;line-height:1.3}.side-scroll summary::-webkit-details-marker{display:none}.side-scroll summary small{color:#8babc3;white-space:nowrap}.side-lessons{padding:3px 6px 9px}.side-lessons a{display:flex;align-items:center;gap:8px;color:#a9c0d3;padding:7px 8px;font-size:.78rem;line-height:1.3;border-radius:6px}.side-lessons a:hover,.side-lessons a.current{background:#123e62;color:#fff}.lesson-status{color:#627f96}.lesson-status.completed{color:var(--green)}.learn-main{min-width:0;padding:36px clamp(22px,3vw,54px) 90px}.right-sidebar{border-left:1px solid var(--line);padding:34px 18px}.right-sticky{position:sticky;top:20px}.toc{display:flex;flex-direction:column;margin:17px 0 28px;border-left:1px solid #2a4964}.toc a{color:#a5bcd0;font-size:.76rem;padding:6px 0 6px 12px}.toc a:hover{border-left:2px solid var(--cyan);color:var(--cyan)}.aside-note{border:1px solid var(--line);background:var(--surface);border-radius:11px;padding:15px}.aside-note p{font-size:.78rem;line-height:1.5;margin:6px 0 0}.mobile-course-toggle{display:none}.breadcrumbs{display:flex;gap:9px;color:#90acc4;font-size:.78rem;margin-bottom:24px;flex-wrap:wrap}.breadcrumbs a:hover{color:var(--cyan)}.page-top{padding-bottom:20px;border-bottom:1px solid var(--line)}.page-top h1{font-size:clamp(2rem,3vw,3.2rem);margin:9px 0}.page-top p{max-width:700px}.page-top .progress-bar{max-width:390px}.content-section{margin-top:35px}.content-section h2{font-size:1.5rem}.section-heading.compact{margin-bottom:16px}.section-heading.compact h2{margin:0}.panel{border:1px solid var(--line);border-radius:13px;background:#0c192a;padding:22px}.dashboard-feature{display:flex;justify-content:space-between;gap:25px;padding:28px;margin-top:28px;border:1px solid #3978a4;border-radius:15px;background:radial-gradient(circle at 90% 0,#164d79,#10243b 55%)}.dashboard-feature h2{font-size:1.55rem;margin:8px 0}.dashboard-feature p{font-size:.88rem}.dashboard-percent{min-width:170px;align-self:center}.dashboard-percent strong{font-family:'Space Grotesk';font-size:2.8rem}.dashboard-percent span{display:block;font-size:.8rem;color:var(--muted)}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:15px}.stat-grid>div{background:#0d1b2d;border:1px solid var(--line);border-radius:12px;padding:20px}.stat-grid strong{font-size:1.5rem;display:block}.stat-grid span{font-size:.79rem;color:var(--muted)}.activity-row,.lesson-row,.bookmark-row,.search-result{display:flex;align-items:center;gap:15px;padding:14px 5px;border-bottom:1px solid #203449}.activity-row:last-child,.lesson-row:last-child,.bookmark-row:last-child,.search-result:last-child{border:0}.activity-row>span:nth-child(2),.lesson-row>span:nth-child(2),.search-result>span:nth-child(2){flex:1}.activity-row strong,.lesson-row strong,.bookmark-row strong,.search-result strong{display:block;font-size:.9rem}.activity-row small,.lesson-row small,.bookmark-row small,.search-result small{display:block;color:var(--muted);font-size:.76rem;line-height:1.4}.activity-row:hover,.lesson-row:hover,.search-result:hover{background:#11253b}.status-dot{width:29px;height:29px;display:grid;place-items:center;border-radius:50%;background:#173f64;color:#6dbefa}.status-dot.completed{background:#194a3a;color:#6be9af}.lesson-order{color:#5eb6ef;font-family:'Space Grotesk';font-weight:700}.status-label{display:inline-block;border:1px solid #39536b;border-radius:100px;padding:2px 9px;color:#aac0d1;font-size:.71rem!important;text-transform:capitalize;white-space:nowrap}.status-label.completed{color:#77e1ae;background:#123b2e;border-color:#2b7957}.status-label.in-progress{color:#86c5ff;background:#113456;border-color:#2a668f}.empty-inline{color:var(--muted);font-size:.87rem}.lesson-list{padding:5px 18px}
.lesson-article{max-width:780px}.lesson-header{padding-bottom:25px;border-bottom:1px solid var(--line)}.lesson-header h1{font-size:clamp(2rem,3.5vw,3.2rem);margin:9px 0 12px}.lesson-header p{font-size:1.03rem}.lesson-meta{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.lesson-meta>span:not(.status-label){background:#11283d;border:1px solid #27465e;padding:3px 9px;border-radius:100px;color:#bdd0df;font-size:.74rem}.bookmark-button{margin-left:auto;background:transparent;border:1px solid #3e5e7a;border-radius:8px;padding:6px 12px;color:#c8d8e6;font-size:.77rem}.bookmark-button[aria-pressed=true]{color:#ffcf77;border-color:#a77c3e;background:#3c2c17}.lesson-section{padding-top:34px;scroll-margin-top:20px}.lesson-section h2{font-size:1.55rem;margin-bottom:12px}.lesson-section p{line-height:1.78}.clean-list{padding-left:22px;color:#bed0df}.clean-list li{margin:9px 0;padding-left:3px}.clean-list li::marker{color:var(--cyan)}.step-list{list-style:none;padding:0;display:grid;gap:11px}.step-list li{display:flex;align-items:flex-start;gap:12px;padding:14px;border:1px solid #2b455c;border-radius:10px;background:#0e1e30;color:#c2d3e0}.step-list li span{min-width:25px;height:25px;display:grid;place-items:center;background:#165388;border-radius:50%;color:#fff;font-size:.77rem;font-weight:700}.lesson-section .diagram{padding:18px}.lesson-section .flow-track{padding:25px 0}.lesson-section .flow-node{width:110px;min-height:105px}.lesson-section .flow-node strong{font-size:.75rem}.code-block{overflow:hidden;border:1px solid #2c4d66;border-radius:11px;background:#07111e}.code-block>div{display:flex;justify-content:space-between;align-items:center;background:#0d2135;border-bottom:1px solid #2c4d66;padding:7px 13px;color:#9dbbd2;font-size:.67rem;font-weight:800;letter-spacing:.1em}.copy-button{border:1px solid #3c6380;border-radius:5px;background:#162f47;color:#cbe3f2;font-size:.7rem;padding:3px 9px;letter-spacing:normal}.code-block pre{margin:0;padding:18px;overflow:auto;line-height:1.55;font-size:.82rem;color:#addcf4}.quiz{border:1px solid #315773;border-radius:12px;background:#0d2237;padding:19px}.quiz>strong{display:block;margin-bottom:14px}.quiz button{width:100%;display:flex;align-items:center;gap:12px;text-align:left;border:1px solid #294761;background:#0b1929;color:#d6e6f1;padding:10px;border-radius:8px;margin-top:8px;font-size:.84rem}.quiz button:hover,.quiz button.selected{border-color:#44a5e4;background:#123d60}.quiz button.correct{border-color:#42b687;background:#123c30}.quiz button.incorrect{border-color:#d57987;background:#4b2230}.quiz button span{width:23px;height:23px;display:grid;place-items:center;border:1px solid #4a748f;border-radius:6px;font-weight:700;font-size:.7rem}.quiz-feedback{font-size:.83rem;margin:9px 0 0}.related-lab{display:flex;align-items:center;gap:14px;border:1px solid #386f89;background:#113146;border-radius:11px;padding:17px}.related-lab>span:first-child{font-size:1.7rem;color:var(--cyan)}.related-lab>div{flex:1}.related-lab small{display:block;color:var(--muted)}.lesson-actions{display:flex;align-items:center;gap:17px;flex-wrap:wrap;margin-top:40px;padding-top:25px;border-top:1px solid var(--line)}.prev-next{display:flex;justify-content:space-between;gap:15px;margin-top:35px}.prev-next a{display:flex;flex-direction:column;gap:2px;min-width:0;max-width:48%;border:1px solid var(--line);border-radius:9px;padding:12px 15px;color:var(--cyan);font-size:.79rem}.prev-next a:last-child{text-align:right}.prev-next strong{font-size:.87rem}
.quiz+.quiz{margin-top:14px}.comparison-block{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}.comparison-block>div{border:1px solid #315773;border-radius:11px;background:#0d2237;padding:18px}.comparison-block h3{font-size:1.04rem;margin:6px 0}.comparison-block p{font-size:.82rem;margin:0}
.search-dialog{width:min(650px,calc(100% - 28px));max-width:none;border:1px solid #4b83aa;border-radius:16px;padding:0;background:#0b1b2d;color:#f2f8fc;box-shadow:0 30px 100px #000b}.search-dialog::backdrop{background:#020916c9;backdrop-filter:blur(5px)}.dialog-head{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid #29455d}.dialog-head button{border:0;background:transparent;color:#cadce9;font-size:1.6rem;line-height:1}.search-dialog form{display:flex;align-items:center;gap:9px;margin:18px;border:1px solid #47789a;background:#071422;border-radius:9px;padding:7px 9px}.search-dialog form span{color:#63c3f0;font-size:1.3rem}.search-dialog input{flex:1;min-width:0;background:transparent;color:#fff;border:0;outline:0}.search-dialog form button{background:#2385e1;border:0;border-radius:7px;color:white;padding:8px 12px;font-size:.8rem;font-weight:700}.search-dialog p{margin:0 20px 19px;font-size:.79rem}
.module-copy{flex:1;min-width:0}.module-open{position:absolute;right:19px;top:20px;color:var(--cyan);font-size:1.2rem}.module-expansion{margin-top:11px;border-top:1px solid #244157;padding-top:7px}.module-expansion summary{color:var(--cyan);font-size:.78rem;font-weight:700;cursor:pointer}.module-expansion>div{display:grid;gap:4px;padding-top:11px}.module-expansion a{display:flex;align-items:center;gap:7px;padding:5px 6px;border-radius:5px;font-size:.78rem;color:#c5d8e7}.module-expansion a:hover{background:#153751}.progress-panel{display:flex;align-items:center;justify-content:space-between;gap:32px;border:1px solid #346d90;background:linear-gradient(120deg,#102b45,#0b1c2e);border-radius:17px;padding:32px}.progress-panel>div{flex:1}.progress-panel h2{margin:6px 0}.progress-panel .progress-bar{max-width:530px}.prerequisites{display:grid;grid-template-columns:1fr 1fr;gap:35px;align-items:center}.prerequisites .panel{padding:27px}.prerequisites .clean-list{margin-bottom:0}
.skeleton-overlay{display:none;position:fixed;inset:76px 0 0;z-index:45;background:#06101de8;backdrop-filter:blur(6px);padding:8vh 24px}.skeleton-overlay.show{display:block}.skeleton-card{width:min(760px,100%);margin:auto;border:1px solid #2a4e6b;border-radius:13px;background:#0d1e30;padding:30px}.skeleton-line{height:15px;background:linear-gradient(90deg,#15334e,#25557a,#15334e);background-size:200% 100%;border-radius:6px;margin:17px 0;animation:skeleton-shift 1.5s linear infinite}.skeleton-line.short{width:25%;height:10px}.skeleton-line.title{width:72%;height:35px}.skeleton-line.half{width:48%}@keyframes skeleton-shift{to{background-position-x:-200%}}
@media(max-width:650px){.prerequisites{grid-template-columns:1fr}.progress-panel{display:block}.progress-panel .button{margin-top:18px}.module-card{padding-right:37px}}

/* UI reference direction: raven branding, coral actions, and one ready learning path. */
:root{--coral:#eb5265;--coral-light:#ff7180;--coral-dark:#a62d47}
.site-header{background:#07111cea}.brand{font-family:Georgia,serif;font-size:1.33rem;letter-spacing:-.04em;gap:5px}.brand strong{color:#fff;font-weight:500}.brand-mark{width:42px;height:42px;object-fit:contain;vertical-align:middle;filter:none}.desktop-nav .nav-coming{position:relative;display:inline-flex;align-items:center;color:#8497a9;font-size:.88rem;font-weight:600;padding:10px 9px;cursor:default}.nav-coming small{font-size:.55rem;text-transform:uppercase;letter-spacing:.06em;color:#ed9aa7;border:1px solid #7f3949;border-radius:20px;padding:1px 5px;margin-left:5px}.desktop-nav a.active{background:#482034;color:#fff}.desktop-nav a:hover{background:#2b1b2c}.header-signin{padding:7px 10px;color:#e4d7df;font-size:.88rem;font-weight:700}.header-signin:hover{color:#fff}.button{border-color:#fa7282;background:linear-gradient(135deg,#f05d68,#d9475e);box-shadow:0 6px 22px #dd345344}.button.secondary{border-color:#43566c;background:#11243a;box-shadow:none}.button:hover{filter:brightness(1.08)}.pill.ready-pill{background:#183d34;border-color:#397258;color:#8aebaf}.pill.coming-pill{background:#37212e;border-color:#734254;color:#f2a2ad}.footer .brand-mark{width:30px;height:30px}
.hero.reference-hero{min-height:625px;background-image:linear-gradient(90deg,#06101bd6 0%,#06101b9a 42%,#07101b33 100%),linear-gradient(0deg,#06101bf5 0%,transparent 50%),url('/assets/hero-raven.png');background-size:cover;background-position:center;display:block}.hero.reference-hero:before{display:none}.reference-hero-inner{position:relative;padding:85px 0 40px;min-height:625px}.reference-hero-inner>.eyebrow{color:#f9aab4}.reference-hero h1{font-size:clamp(3rem,5.3vw,5.6rem);max-width:680px;margin:12px 0 13px;color:#fff;text-shadow:0 4px 23px #000b}.reference-hero h1 em{font-style:normal;color:#fff;background:none}.reference-hero-inner>p{font-size:1.08rem;color:#eef2f5;max-width:510px;text-shadow:0 2px 12px #000;line-height:1.6}.hero-search{width:min(560px,100%);display:flex;align-items:center;gap:9px;background:#f5f8fc;color:#182b3b;border-radius:10px;padding:5px 6px 5px 15px;margin:27px 0 7px;box-shadow:0 12px 32px #02071180}.hero-search span{font-size:1.45rem;color:#506d83}.hero-search input{flex:1;min-width:0;border:0;background:transparent;outline:0;color:#172a39;font-size:.95rem}.hero-search button{border:0;border-radius:7px;background:#d9475e;color:#fff;padding:9px 16px;font-size:.78rem;font-weight:800}.reference-hero-inner>small{font-size:.75rem;color:#d5dce2}.hero-methods{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:65px;max-width:1130px}.hero-methods>div{padding:18px 17px;border:1px solid #ffffff26;border-radius:12px;background:#071320b8;backdrop-filter:blur(8px)}.hero-methods span{display:grid;place-items:center;width:34px;height:34px;border:1px solid #c86175;background:#3d1f31;color:#ff9ba6;border-radius:9px;margin-bottom:11px;font-size:1.1rem}.hero-methods strong{display:block;font-size:.93rem}.hero-methods p{margin:4px 0 0;color:#bacbd7;font-size:.78rem;line-height:1.5}.popular-paths{padding-top:66px}.path-card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.path-card{min-height:245px;position:relative;border:1px solid #2c4056;border-radius:15px;background:linear-gradient(150deg,#102038,#0a1728);padding:22px}.path-ready{border-color:#8a4353}.path-ready:hover{border-color:#ed6e7e;transform:translateY(-3px)}.path-card .pill{position:absolute;right:20px;top:23px}.path-glyph{display:grid;place-items:center;width:52px;height:52px;border-radius:12px;color:#fff;font-size:1.8rem;margin-bottom:16px}.eks-glyph{background:linear-gradient(135deg,#1e7ef4,#3932aa)}.docker-glyph{background:linear-gradient(135deg,#128cbd,#0d557e)}.terraform-glyph{background:linear-gradient(135deg,#693dc0,#372577)}.path-card h3{margin:0 0 6px}.path-card p{font-size:.88rem;min-height:52px;margin:0 0 13px}.path-card>.meta-line{font-size:.75rem}.path-card>strong{display:block;color:#ff8c9b;font-size:.8rem;margin-top:15px}.path-card>small{color:#e69ba8;font-size:.77rem}.path-soon{opacity:.75;cursor:default}.path-soon:hover{color:inherit}.coming-grid{grid-template-columns:repeat(3,1fr)}.coming-grid>div{min-height:95px;display:flex;align-items:center;gap:10px}.coming-grid strong{font-size:1rem}.coming-grid small{margin-left:auto;color:#f0a1aa}.future-heading{margin:36px 0 18px}.future-symbol{color:#8cbcff;font-size:1.35rem}
.hub-layout{display:grid;grid-template-columns:245px minmax(0,1fr);max-width:1580px;margin:auto;min-height:calc(100vh - 76px)}.hub-sidebar{background:#091522;border-right:1px solid #263749;padding:27px 15px}.hub-sidebar nav{display:grid;gap:4px}.hub-sidebar nav a,.hub-course-list>a,.hub-future{display:flex;align-items:center;gap:12px;padding:9px 12px;border-radius:8px;color:#b7c7d6;font-size:.85rem;font-weight:600}.hub-sidebar nav a.current,.hub-sidebar nav a:hover{background:#492134;color:#fff}.hub-course-list{border-top:1px solid #263749;margin-top:23px;padding-top:19px}.hub-course-list .eyebrow{display:block;margin:0 12px 10px;font-size:.63rem;color:#91a8ba}.hub-course-list>a{background:#13294a;color:#e9f4ff}.hub-course-list>a span{margin-left:auto;color:#73e1ae;font-size:.65rem}.hub-future{color:#7790a5;cursor:default}.hub-future small{margin-left:auto;color:#d3929e;font-size:.6rem}.hub-main{padding:37px clamp(24px,4vw,65px) 90px;min-width:0}.hub-welcome h1{font-size:2.6rem;margin:8px 0}.hub-welcome p{margin:0 0 23px}.hub-feature{display:flex;flex-wrap:wrap;gap:21px;align-items:center;padding:28px;border:1px solid #365977;border-radius:16px;background:linear-gradient(130deg,#12304b,#0e1d2f 62%)}.hub-feature-icon{width:72px;height:72px;display:grid;place-items:center;background:linear-gradient(135deg,#1b85e8,#3732a4);border-radius:15px;color:#fff;font-size:2.9rem}.hub-feature-copy{flex:1;min-width:230px}.hub-feature-copy h2{font-size:1.5rem;margin:4px 0}.hub-feature-copy p{font-size:.87rem;margin:0 0 17px}.hub-actions{display:flex;gap:10px;flex-wrap:wrap}.hub-ring{width:100px;height:100px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:radial-gradient(circle at center,#0c1c2e 54%,transparent 55%),conic-gradient(#e75062 var(--progress),#2b3f54 0);border:1px solid #3d5f7c}.hub-ring strong{font-size:1.35rem}.hub-ring small{color:#adc3d3;font-size:.7rem}.hub-feature-stats{width:100%;display:flex;gap:20px;border-top:1px solid #2c4962;padding-top:15px;color:#a9bfd0;font-size:.77rem}.hub-path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.hub-path-grid>a,.hub-path-grid>div{display:flex;flex-direction:column;align-items:flex-start;min-height:160px;border:1px solid #2b4155;background:#0e1d2e;border-radius:13px;padding:18px}.hub-path-grid .path-glyph{width:40px;height:40px;font-size:1.4rem;margin-bottom:13px}.hub-path-grid strong{font-size:.95rem}.hub-path-grid small{font-size:.73rem;color:#a6bfd0}.hub-path-grid .progress-bar{width:100%;margin-top:auto}.hub-path-soon{opacity:.65}.hub-path-soon small{color:#e59baa}.hub-panels{display:grid;grid-template-columns:1fr 1fr;gap:18px}.hub-panels .panel{min-height:180px}.saved-star{color:#f2bf71;font-size:1.25rem}.hub-summary{display:flex;gap:16px;flex-wrap:wrap;border-top:1px solid #2b4055;padding-top:20px;margin-top:35px;color:#92a9bc;font-size:.78rem}.mobile-hub-toggle{display:none}
.search-suggestions{max-height:345px;overflow:auto;padding:0 18px 12px}.search-suggestions>p{margin:8px 3px 12px;font-size:.81rem;color:#aabfd0}.suggestion-result{display:flex;gap:12px;align-items:center;padding:10px;border:1px solid transparent;border-radius:8px}.suggestion-result:hover,.suggestion-result:focus{border-color:#4b799b;background:#122c43}.suggestion-result>span:first-child{min-width:72px;border-radius:6px;background:#163c58;color:#8bd0f0;padding:3px 5px;text-align:center;font-size:.66rem;font-weight:800}.suggestion-result strong{display:block;font-size:.85rem}.suggestion-result small{display:block;color:#9eb6c8;font-size:.69rem;white-space:nowrap;text-overflow:ellipsis;overflow:hidden;max-width:400px}.search-dialog .dialog-hint{border-top:1px solid #29455d;margin:0;padding:12px 20px;color:#879eae}
.suggestion-result.selected{border-color:#eb6377;background:#3a1e32}
.course-overview-layout{display:grid;grid-template-columns:235px minmax(0,1fr);max-width:1600px;margin:auto}.overview-sidebar{border-right:1px solid #283c50;background:#091625}.overview-sidebar-inner{position:sticky;top:0;max-height:100vh;overflow:auto;padding:25px 12px}.overview-sidebar-inner>strong{display:block;font-size:1rem;margin:0 10px 12px}.overview-sidebar nav{display:grid;gap:3px}.overview-sidebar nav a{padding:8px 11px;border-radius:7px;color:#bbccda;font-size:.82rem}.overview-sidebar nav a.current,.overview-sidebar nav a:hover{background:#442033;color:#fff}.overview-module-links{border-top:1px solid #2b4154;margin-top:15px;padding-top:13px;display:grid;gap:3px}.overview-module-links a{display:block;border-radius:6px;padding:7px 10px;color:#a9bfce;font-size:.77rem;line-height:1.4}.overview-module-links a:hover{background:#173049;color:#fff}.overview-module-links small{display:block;color:#eb8394;font-size:.64rem}.course-overview-main{min-width:0}.course-overview-main .container{width:min(1100px,calc(100% - 44px))}.course-overview-main .course-hero-grid{gap:22px}.course-overview-main .course-hero h1{font-size:clamp(2.5rem,4vw,4rem)}.course-overview-main .card-grid.four{grid-template-columns:repeat(2,1fr)}
.service-flow{margin:0;border:1px solid #315a78;border-radius:13px;background:radial-gradient(circle at 50% 35%,#153957,#091a2b 70%);overflow:hidden}.service-flow-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:15px 18px;border-bottom:1px solid #2b4a63}.service-flow-head .eyebrow{display:block;font-size:.6rem}.service-flow-head strong{font-size:.95rem}.service-flow-head button{border:1px solid #ff8191;border-radius:7px;background:#d84b62;color:white;padding:6px 12px;font-size:.75rem;font-weight:800}.service-flow-grid{display:flex;align-items:center;justify-content:space-between;gap:6px;padding:32px 18px}.service-component{min-width:85px;min-height:106px;border:1px solid #3b6d96;border-radius:10px;background:#112a45;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;transition:box-shadow .25s,border-color .25s,transform .25s}.service-component>span{font-size:1.8rem;color:#5bb9f8}.service-component strong{font-size:.72rem}.service-component small{font-size:.63rem;color:#a3c3d8}.service-link{color:#78cafa;font-size:1.35rem;transition:color .25s}.service-pods{display:grid;gap:5px;border:1px dashed #49799d;border-radius:10px;padding:7px;background:#0e2135;transition:box-shadow .25s,border-color .25s}.service-pods span{border:1px solid #2d5d80;border-radius:5px;padding:4px 7px;background:#153957;color:#d5e7f3;font-size:.69rem;white-space:nowrap}.service-component.is-active,.service-pods.is-active{border-color:#6cc8ff;box-shadow:0 0 0 3px #2c99e54d,0 0 25px #2c99e56b;transform:translateY(-2px)}.service-component.is-done,.service-pods.is-done{border-color:#58a6c9}.service-flow-controls{display:flex;align-items:center;justify-content:space-between;gap:10px;border-top:1px solid #2b4a63;padding:10px 16px}.service-flow-controls button{width:28px;height:28px;border:1px solid #446987;background:#102b42;color:#c3e8fb;border-radius:7px}.service-step-label{color:#c2d9e8;font-size:.72rem;text-align:center}.service-flow figcaption{padding:0 18px 13px;color:#9bb7cc;font-size:.73rem}
@media(max-width:1000px){.course-overview-layout{display:block}.overview-sidebar{display:none}.course-overview-main .course-hero-grid{grid-template-columns:1fr}}
@media(max-width:650px){.course-overview-main .container{width:min(100% - 32px,1100px)}.course-overview-main .card-grid.four{grid-template-columns:1fr}.service-flow-grid{display:grid;justify-content:center;gap:3px;padding:20px}.service-component{min-width:170px;min-height:67px}.service-component>span{font-size:1.25rem}.service-link{text-align:center;transform:rotate(90deg)}.service-pods{grid-template-columns:repeat(3,1fr)}.service-pods span{font-size:.61rem;padding:4px}.service-flow-head strong{font-size:.79rem}}
@media(max-width:1000px){.desktop-nav .nav-coming small{display:none}.hero-methods{gap:9px}.hub-layout{grid-template-columns:205px minmax(0,1fr)}.hub-panels{grid-template-columns:1fr}}
@media(max-width:900px){.hub-sidebar{display:none;position:fixed;z-index:42;top:76px;left:0;width:min(300px,90vw);height:calc(100vh - 76px);overflow:auto;box-shadow:var(--shadow)}.hub-sidebar.open{display:block}.hub-layout{display:block}.mobile-hub-toggle{display:inline-block;border:1px solid #3c5268;border-radius:8px;background:#14283b;color:#fff;padding:8px 12px;margin-bottom:20px}.hero-methods{grid-template-columns:repeat(2,1fr)}.path-card-grid{grid-template-columns:1fr 1fr}}
@media(max-width:650px){.brand{font-size:1rem}.brand-mark{width:32px;height:32px}.header-signin{display:none}.mobile-nav .nav-coming{display:block;padding:7px 10px;color:#9cb0bf;font-size:.85rem}.mobile-nav .nav-coming small{margin-left:7px;font-size:.6rem;color:#ec94a2}.hero.reference-hero{min-height:0;background-position:63% center}.reference-hero-inner{padding:72px 0 28px;min-height:0}.reference-hero h1{font-size:2.75rem}.reference-hero-inner>p{font-size:.95rem;max-width:310px}.hero-methods{margin-top:45px;grid-template-columns:1fr 1fr}.hero-methods>div{padding:12px}.hero-methods strong{font-size:.77rem}.hero-methods p{font-size:.68rem}.hero-methods span{width:30px;height:30px;font-size:.9rem}.path-card-grid{grid-template-columns:1fr}.path-card{min-height:0}.hub-sidebar{top:68px;height:calc(100vh - 68px)}.hub-main{padding:24px 16px 70px}.hub-welcome h1{font-size:2.15rem}.hub-feature{padding:20px}.hub-ring{width:85px;height:85px}.hub-feature-stats{gap:8px;flex-wrap:wrap}.hub-path-grid{grid-template-columns:1fr}.hub-path-grid>a,.hub-path-grid>div{min-height:125px}.hub-panels{grid-template-columns:1fr}.coming-grid{grid-template-columns:1fr}.search-dialog form button{display:none}}
.lab-card{min-height:255px}.lab-card .eyebrow{display:block;font-size:.64rem;margin-bottom:8px}.lab-card .meta-line{margin:20px 0}.lab-card .text-link{font-size:.85rem}.lab-layout{display:grid;grid-template-columns:minmax(0,800px) 250px;gap:55px;padding:48px 0 90px}.lab-main>h1{font-size:clamp(2rem,3vw,3rem);margin:5px 0}.lab-aside .panel{position:sticky;top:25px}.lab-aside p{font-size:.84rem}.info-banner{border:1px solid #386880;background:#11374a;border-radius:9px;padding:13px 16px;color:#bee5f1;font-size:.85rem;margin-top:28px}.bookmark-row{justify-content:space-between}.bookmark-row>a{display:flex;align-items:center;gap:13px}.bookmark-row>a>span:first-child{color:#ffc36b;font-size:1.3rem}.bookmark-row button{border:1px solid var(--line);background:#15263a;color:#c5d7e7;border-radius:7px;padding:5px 11px;font-size:.77rem}.empty-state{text-align:center;padding:48px 20px}.empty-state>span{font-size:2rem;color:var(--cyan)}.empty-state h2{font-size:1.5rem;margin:6px 0}.search-form{max-width:780px;display:flex;align-items:center;gap:10px;border:1px solid #3c7193;background:#0b1c2e;border-radius:11px;padding:6px 7px 6px 16px}.search-form>span{font-size:1.4rem;color:var(--cyan)}.search-form input{border:0;background:transparent;box-shadow:none!important}.search-form button{border:0;border-radius:7px;background:#1b7cda;color:#fff;padding:9px 18px;font-weight:700;font-size:.8rem}.search-results{max-width:900px}.search-result{padding:15px}.search-type{min-width:94px;border-radius:7px;background:#15364f;border:1px solid #2c6082;color:#88d8ff;padding:4px 8px;text-align:center;font-size:.72rem;font-weight:800}.error-page{text-align:center;padding:100px 0 140px}.error-page h1{margin:12px 0}.toast{position:fixed;right:20px;bottom:20px;background:#123a57;color:white;border:1px solid #56b5e6;border-radius:9px;box-shadow:var(--shadow);padding:11px 17px;z-index:50;opacity:0;transform:translateY(10px);pointer-events:none;transition:opacity .25s,transform .25s}.toast.show{opacity:1;transform:translateY(0)}
@keyframes trace{0%,100%{opacity:.35;transform:translateX(-3px)}50%{opacity:1;transform:translateX(3px)}}
@media(max-width:1200px){.learning-layout{grid-template-columns:260px minmax(0,1fr)}.right-sidebar{display:none}.desktop-nav a{padding:9px}.hero-art{transform:scale(.85)}}
@media(max-width:900px){.desktop-nav{display:none}.menu-button{display:inline-grid}.mobile-nav.open{display:flex;position:absolute;top:76px;left:0;right:0;flex-direction:column;background:#0a1929;border-bottom:1px solid var(--line);padding:12px 24px;box-shadow:var(--shadow)}.mobile-nav a{padding:8px 10px;border-radius:7px}.mobile-nav a.active{background:#123854}.hero-grid,.course-hero-grid{grid-template-columns:1fr}.hero-grid{gap:0}.hero-copy{padding:60px 0 20px}.hero-art{height:340px;transform:scale(.72);margin-top:-45px}.card-grid.four{grid-template-columns:repeat(2,1fr)}.learning-layout{display:block}.course-sidebar{display:none;position:fixed;z-index:40;top:76px;left:0;width:min(320px,92vw);height:calc(100vh - 76px);box-shadow:var(--shadow)}.course-sidebar.open{display:block}.mobile-course-toggle{display:inline-block;border:1px solid var(--line);border-radius:8px;background:#11263c;color:var(--text);padding:8px 13px;margin-bottom:18px;font-size:.85rem}.learn-main{padding:25px max(24px,5vw) 80px}.lab-layout{grid-template-columns:1fr}.lab-aside{display:none}}
@media(max-width:650px){body{font-size:16px}.container{width:min(100% - 32px,1220px)}.header-inner{width:calc(100% - 30px);height:68px}.site-header .mobile-nav.open{top:68px}.brand{font-size:1rem}.header-actions{gap:2px}.theme-button{display:none}.session-menu summary{font-size:0;padding:8px}.session-menu summary:first-letter{font-size:1rem}.site-header .button.small{padding:7px 10px;font-size:.75rem}.hero{min-height:auto}.hero-grid{min-height:auto}.hero-copy{padding:55px 0 10px}.hero h1{font-size:2.65rem}.hero-stats{gap:22px}.hero-stats strong{font-size:1.2rem}.hero-stats span{font-size:.7rem}.hero-art{height:260px;transform:scale(.56);margin:-80px 0 -35px}.section{padding:65px 0}.section-heading{align-items:start}.section-heading .text-link{font-size:.78rem}.featured-card{display:block;padding:23px}.featured-icon{width:70px;min-width:70px;height:70px;font-size:3rem;margin-bottom:16px}.featured-card .button{margin-top:20px}.meta-line{gap:9px 15px}.card-grid.three,.card-grid.four,.module-grid,.check-grid,.coming-grid,.comparison-block{grid-template-columns:1fr}.flow-track{display:grid;justify-items:center;gap:6px;padding:20px 0}.flow-node{width:min(100%,270px);min-height:72px;flex-direction:row;gap:13px}.flow-node .node-icon{font-size:1.4rem}.flow-arrow{transform:rotate(90deg)!important;line-height:1}.diagram-toolbar{align-items:center}.live-indicator{font-size:.64rem}.footer-inner{display:block}.footer-inner>div:last-child{margin-top:20px;flex-wrap:wrap}.page-hero{padding:55px 0 30px}.page-hero h1{font-size:2.45rem}.activate-card{padding:25px}.course-hero{padding:50px 0}.course-hero h1{font-size:2.8rem}.architecture{padding:18px}.learning-layout .course-sidebar{top:68px;height:calc(100vh - 68px)}.learn-main{padding:24px 16px 70px}.dashboard-feature{display:block}.dashboard-percent{margin-top:20px}.stat-grid{grid-template-columns:1fr 1fr}.stat-grid>div:last-child{grid-column:span 2}.lesson-header h1{font-size:2.2rem}.lesson-meta .bookmark-button{margin-left:0}.lesson-section .flow-node{width:min(100%,270px)}.lesson-section .flow-track{display:grid}.lesson-section .flow-arrow{transform:rotate(90deg)!important}.lab-layout{padding-top:30px;gap:0}.search-form{padding-left:10px}.search-form button{padding:8px}.search-type{min-width:65px}.search-result small{max-width:100%;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.module-card{min-height:0}.lesson-row{align-items:flex-start}.lesson-row .status-label{display:none}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}
@media(max-width:650px){.hero-art{height:300px;margin:0;transform:scale(.55)}}
body.light{color-scheme:light;--bg:#f3f8fc;--surface:#fff;--surface2:#eaf4fc;--surface3:#dcecf8;--text:#092238;--muted:#3d586d;--soft:#526d82;--line:#bed1df;background:var(--bg);color:var(--text)}body.light .site-header,body.light .footer{background:#eaf4fced}body.light .site-header a,body.light .footer a{color:#15334c}body.light .section-alt,body.light .card,body.light .panel,body.light .module-card,body.light .lab-card,body.light .course-sidebar{background:#eaf4fc}body.light .course-hero,body.light .hero{background:radial-gradient(circle at 80% 40%,#cce9fa,#eaf5fc)}body.light .hero h1,body.light .course-hero h1{color:#092238}body.light .diagram,body.light .architecture{color:#e9f7ff}body.light .button{color:#fff!important}
.side-scroll summary{font-size:.88rem}.side-lessons a{font-size:.86rem;line-height:1.45}
.lab-mobile-start{display:none}@media(max-width:900px){.lab-mobile-start{display:block;margin-top:22px}.lab-mobile-start .button{width:100%}}
.contact-wrap{width:min(560px,calc(100% - 32px));margin:42px auto 90px}.contact-card{margin-top:22px;padding:40px;border:1px solid #345a78;border-radius:17px;background:radial-gradient(circle at 50% -20%,#12406c,#0d1c2e 60%);box-shadow:var(--shadow)}.contact-card h1{font-size:2.15rem;margin:8px 0}.contact-card>p{font-size:.94rem;line-height:1.65}.contact-card form{display:grid;gap:9px;margin-top:28px}.contact-card label{color:#dbe9f5;font-weight:700;font-size:.86rem}.contact-card input,.contact-card textarea{width:100%;outline:none;border:1px solid #3a6685;background:#081525;color:#fff;border-radius:9px;padding:12px 14px;font:inherit}.contact-card input:focus,.contact-card textarea:focus{border-color:#5bcaff;box-shadow:0 0 0 3px #2a9fff33}.contact-card textarea{resize:vertical;min-height:100px}.contact-card .button{margin-top:5px}.contact-note{font-size:.78rem!important;color:var(--muted);margin-top:22px}.contact-direct{margin-top:22px}.request-success{min-height:22px;color:#84e0ae;margin:0;font-size:.84rem}.request-row{border-bottom:1px solid var(--line);padding:18px 0}.request-row:last-child{border-bottom:0}.request-row strong,.request-row small{display:block}.request-row small{font-size:.75rem;color:var(--muted)}.request-row p{margin:10px 0;font-size:.9rem;white-space:pre-wrap}@media(max-width:650px){.contact-card{padding:25px}}
.request-row .status-label{margin-top:8px}.request-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.request-actions button{border:1px solid var(--line);border-radius:7px;background:#16304a;color:#e9f4ff;padding:7px 12px;cursor:pointer}.request-actions button:hover{border-color:#4b96c4}.request-actions small{color:var(--muted)}