.training-main{max-width:1500px;margin:auto;padding:45px clamp(18px,5vw,70px)}.lesson-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:24px}.lesson-head h1{font:700 clamp(32px,4vw,54px)/1.1 Space Grotesk;margin:8px 0}.lesson-head p{color:var(--muted);max-width:760px}.lesson-status{display:flex;align-items:center;gap:16px}.status-badge{padding:8px 12px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:11px}.status-badge.done{color:var(--green);border-color:rgba(98,230,167,.3)}.workbench{display:grid;grid-template-columns:1fr 1fr;gap:14px}.panel{min-height:560px;background:#081523;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}.panel-top{height:48px;padding:0 15px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:11px}.tabs{display:flex;height:100%;gap:4px}.tab{border:0;background:transparent;color:var(--muted);padding:0 14px;cursor:pointer;border-bottom:2px solid transparent}.tab.active{color:var(--text);border-color:var(--cyan)}.live-dot{color:var(--green);font-size:10px}.editor-wrap{display:grid;grid-template-columns:52px 1fr;height:512px;overflow:auto}.line-numbers{padding:22px 12px 22px 0;text-align:right;color:#435a72;background:#07111d;font:12px/1.9 ui-monospace,monospace;user-select:none}.editor-wrap pre{margin:0;padding:22px 20px;color:#c9d9eb;font:12px/1.9 ui-monospace,monospace;white-space:pre-wrap;overflow-wrap:anywhere}.preview-panel iframe{width:100%;height:512px;border:0;background:white}.controls{margin-top:14px;border:1px solid var(--line);background:var(--panel);border-radius:15px;padding:13px;display:flex;align-items:center;gap:9px}.speed{display:flex;align-items:center;gap:8px;margin-left:10px;color:var(--muted);font-size:12px}.speed select{height:36px}.progress-wrap{flex:1;min-width:150px;margin-left:10px}.progress-label{display:flex;justify-content:space-between;color:var(--muted);font-size:10px;margin-bottom:5px}.progress-label strong{color:var(--text)}.progress{height:7px;border-radius:99px;background:#13283d;overflow:hidden}.progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--purple));transition:width .15s}.completion-card,.countdown-card{margin-top:14px;border:1px solid rgba(98,230,167,.22);background:rgba(98,230,167,.04);border-radius:15px;padding:20px;display:flex;align-items:center;justify-content:space-between}.completion-card>div{display:flex;align-items:center;gap:14px}.success-icon{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:rgba(98,230,167,.12);color:var(--green);font-size:22px}.completion-card h2{font:600 18px Space Grotesk;margin:0}.completion-card p{margin:2px 0;color:var(--muted);font-size:12px}.countdown-card{border-color:rgba(66,217,255,.25);background:rgba(66,217,255,.04);gap:15px}.countdown-card>span{color:var(--cyan);font-size:10px;font-weight:800;letter-spacing:.12em}.countdown-card strong{font:700 42px Space Grotesk}.countdown-card p{margin:0;color:var(--muted);font-size:12px}.lesson-nav{display:flex;justify-content:space-between;margin-top:25px}@media(max-width:850px){.lesson-head{display:block}.lesson-status{margin-top:16px}.workbench{grid-template-columns:1fr}.panel{min-height:430px}.editor-wrap,.preview-panel iframe{height:380px}.controls{flex-wrap:wrap}.progress-wrap{flex-basis:100%;margin:10px 0 0}.countdown-card{flex-wrap:wrap}}