.java-hero{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(300px,.65fr);gap:36px;align-items:center;margin:36px 0 28px;padding:54px;border-radius:24px;background:linear-gradient(135deg,#172554,#2563eb);color:#fff}.java-hero h1{margin:10px 0;font-size:clamp(38px,5vw,62px);color:#fff}.java-hero h1 em{color:#bfdbfe;font-style:normal}.java-hero p{max-width:700px;color:#dbeafe;font-size:16px;line-height:1.6}.hero-actions{display:flex;gap:12px;margin-top:22px}.java-hero-progress{display:flex;align-items:center;gap:20px;padding:28px;border-radius:20px;background:#fff;color:#0f172a}.java-hero-progress>span{color:#2563eb;font-size:44px;font-weight:800}.java-hero-progress strong{display:block}.java-hero-progress p{margin:5px 0 12px;color:#64748b;font-size:12px}.java-hero-progress .progress{width:230px}.java-reset-hero{margin-top:14px}.java-tabs{display:flex;gap:8px;padding:10px;margin-bottom:36px;border:1px solid #e2e8f0;border-radius:16px;background:#fff}.java-tab{padding:12px 20px;border:0;border-radius:10px;background:transparent;color:#475569;font-weight:700}.java-tab.active{background:#2563eb;color:#fff}.java-view{display:none}.java-view.active{display:block}.java-roadmap{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.java-roadmap article,.java-summary,.java-lesson-list,.java-lesson-reader,.java-practice{padding:22px;border:1px solid #e2e8f0;border-radius:18px;background:#fff}.java-roadmap span{color:#2563eb;font-weight:800}.java-roadmap h3{margin:12px 0 6px}.java-roadmap p,.java-summary p{color:#64748b;font-size:13px;line-height:1.5}.java-summary{margin-top:22px}.java-lesson-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:20px}.java-lesson-list{padding:10px}.java-lesson-button{display:flex;gap:10px;align-items:center;width:100%;padding:11px;border:0;border-radius:8px;background:transparent;text-align:left}.java-lesson-button.active{background:#eff6ff;color:#2563eb}.java-lesson-number{display:grid;width:26px;height:26px;place-items:center;border-radius:7px;background:#e2e8f0;font-size:10px;font-weight:700}.java-lesson-button.complete .java-lesson-number{background:#16a34a;color:#fff}.java-lesson-reader{min-height:420px}.java-lesson-reader h2{margin:0 0 14px}.java-code{padding:14px;border-radius:10px;background:#0f172a;color:#e2e8f0}.java-lesson-actions{display:flex;justify-content:space-between;gap:8px;margin-top:25px}.java-practice{max-width:800px}.java-options{display:grid;gap:9px}.java-option{padding:12px;border:1px solid #e2e8f0;border-radius:8px;background:#fff;text-align:left}.java-option.correct{background:#f0fdf4;border-color:#86efac}.java-option.incorrect{background:#fef2f2;border-color:#fecaca}.java-feedback{font-weight:700}@media(max-width:900px){.java-hero,.java-lesson-layout{grid-template-columns:1fr}.java-roadmap{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:600px){.java-hero{padding:28px}.java-tabs,.hero-actions,.java-lesson-actions{flex-direction:column}.java-roadmap{grid-template-columns:1fr}.java-hero-progress .progress{width:150px}}