.how-page{min-height:100%;height:100dvh;overflow:auto;touch-action:pan-y;background:radial-gradient(ellipse 70% 50% at 100% 0%,rgba(13,143,127,.1),transparent 50%),radial-gradient(ellipse 50% 40% at 0% 100%,rgba(255,107,74,.08),transparent 45%),#f7fafc;color:#0f1c24;font-family:Nunito,system-ui,sans-serif;padding:1.25rem clamp(1rem,3vw,2rem) 2.5rem}.how-top{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:1.25rem}.how-top h1{font-family:Outfit,sans-serif;font-weight:800;font-size:clamp(1.5rem,3.5vw,2.2rem);letter-spacing:-.03em}.how-top h1 span{color:#0d8f7f}.how-nav{display:flex;gap:.5rem;flex-wrap:wrap}.how-nav a,.how-nav button{appearance:none;border:1px solid rgba(15,28,36,.12);background:#fff;color:#0f1c24;font:inherit;font-weight:800;font-size:.85rem;padding:.65rem 1rem;border-radius:999px;text-decoration:none;cursor:pointer;box-shadow:0 8px 24px #0f1c240f}.how-nav a.primary,.how-nav button.primary{background:#0d8f7f;color:#fff;border-color:#0d8f7f}.how-tabs{display:flex;gap:.5rem;margin-bottom:1rem}.how-tabs button{appearance:none;border:2px solid transparent;background:#fff;font:inherit;font-weight:800;padding:.7rem 1.2rem;border-radius:14px;cursor:pointer;color:#5a6d78;box-shadow:0 8px 24px #0f1c240f}.how-tabs button.active{color:#0d8f7f;border-color:#0d8f7f;background:#d8f5f0}.stage-card{background:#fff;border:1px solid rgba(15,28,36,.1);border-radius:24px;padding:clamp(1rem,2.5vw,1.75rem);box-shadow:0 16px 48px #0f1c2414;min-height:min(70vh,640px);display:grid;grid-template-rows:auto 1fr auto;gap:1rem}.stage-caption{font-size:clamp(1.05rem,2.2vw,1.35rem);font-weight:800;color:#0f1c24;min-height:2.2em}.stage-caption em{color:#0d8f7f;font-style:normal}.viz{position:relative;border-radius:18px;background:linear-gradient(180deg,#eef6f8,#f7fafc);border:1px dashed rgba(15,28,36,.12);overflow:hidden;min-height:360px}.df-viz{display:grid;grid-template-columns:1fr 1.15fr 1fr;grid-template-rows:1fr auto;gap:.75rem .9rem;padding:1rem;height:100%;align-items:stretch}@media(max-width:960px){.df-viz{grid-template-columns:1fr;grid-template-rows:auto}.df-pipeline{grid-column:1}}.df-why{display:flex;flex-direction:column;gap:.45rem;min-width:0}.why-card{flex:1;background:#fff;border:1px solid rgba(15,28,36,.1);border-radius:18px;padding:.9rem 1rem 1rem;box-shadow:0 12px 32px #0f1c2412;display:flex;flex-direction:column;gap:.55rem}.why-card h3{font-family:Outfit,sans-serif;font-size:clamp(1rem,2vw,1.2rem);font-weight:800;color:#0f1c24}.why-card p{font-size:clamp(.85rem,1.5vw,.98rem);color:#5a6d78;font-weight:650;line-height:1.45}.why-art{min-height:110px;border-radius:14px;background:linear-gradient(180deg,#eef6f8,#f7fafc);border:1px dashed rgba(15,28,36,.12);display:flex;align-items:center;justify-content:center;gap:.55rem;padding:.75rem;position:relative;overflow:hidden}.why-base{background:#122029;color:#eaf4f1;border-radius:14px;padding:.85rem 1.2rem;text-align:center;box-shadow:0 10px 24px #12202940}.why-base span{display:block;font-size:.7rem;opacity:.55;font-weight:700}.why-base strong{font-family:IBM Plex Mono,monospace;color:#5ef0d8}.why-tag{position:absolute;top:.55rem;right:.55rem;background:#d8f5f0;color:#0d8f7f;font-size:.65rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;padding:.25rem .5rem;border-radius:999px}.why-folder{background:#fff;border:2px solid rgba(15,28,36,.12);border-radius:12px;padding:.85rem 1rem;font-family:IBM Plex Mono,monospace;font-weight:700;font-size:.95rem}.why-folder.open{background:#d8f5f0;border-color:#0d8f7f;color:#0d8f7f}.why-folder.closed{color:#5a6d78;opacity:.7}.why-arrow-r{font-weight:800;color:#0d8f7f;font-size:1.3rem}.why-host,.why-image-slot{background:#fff;border:2px solid rgba(15,28,36,.12);border-radius:12px;padding:.55rem .7rem;min-width:88px;text-align:center}.why-host span,.why-image-slot span{display:block;font-size:.65rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#5a6d78}.why-host i,.why-image-slot i{font-style:normal;font-family:IBM Plex Mono,monospace;font-size:.75rem;font-weight:700}.why-image-slot{background:#122029;color:#eaf4f1;border-color:#122029}.why-image-slot span{color:#5ef0d8}.why-file-fly{font-size:1.25rem;position:absolute;left:28%}.why-pkg{background:#122029;color:#5ef0d8;font-family:IBM Plex Mono,monospace;font-size:.75rem;font-weight:700;padding:.4rem .55rem;border-radius:8px}.why-clock{position:absolute;right:.6rem;bottom:.5rem;font-size:.65rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#ff6b4a}.why-play{width:52px;height:52px;border-radius:50%;background:#ff6b4a;color:#fff;display:grid;place-items:center;font-size:1.2rem;box-shadow:0 8px 20px #ff6b4a59}.why-cmd-text{font-family:IBM Plex Mono,monospace;font-weight:700;font-size:.9rem}.why-when{font-size:.75rem;font-weight:700;color:#5a6d78}.why-when strong{color:#ff6b4a}.why-seal-layer{position:absolute;left:18%;right:18%;height:14px;border-radius:6px;background:#122029;border-left:3px solid #5ef0d8}.why-seal-layer:nth-child(1){bottom:28%}.why-seal-layer:nth-child(2){bottom:36%}.why-seal-layer:nth-child(3){bottom:44%}.why-seal-layer:nth-child(4){bottom:52%}.why-seal-layer:nth-child(5){bottom:60%}.why-seal-label{position:absolute;bottom:12%;background:#d8f5f0;color:#0d8f7f;font-weight:800;font-family:IBM Plex Mono,monospace;font-size:.85rem;padding:.35rem .75rem;border-radius:999px}.why-img-box,.why-box-run{border-radius:12px;padding:.75rem 1rem;font-weight:800;font-size:.9rem}.why-img-box{background:#d8f5f0;color:#0d8f7f;border:2px solid #0d8f7f}.why-box-run{background:#ffe8e1;color:#ff6b4a;border:2px solid #ff6b4a}.why-art.done{gap:.45rem;flex-wrap:wrap}.df-mid-mini{display:flex;justify-content:center;min-height:36px}.df-panel{display:flex;flex-direction:column;gap:.45rem;min-width:0}.df-panel-label{font-size:.7rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:#5a6d78}.df-file{flex:1;background:#122029;border-radius:16px;overflow:hidden;box-shadow:0 12px 28px #12202933;display:flex;flex-direction:column;min-height:220px}.df-file-bar{display:flex;align-items:center;gap:.35rem;padding:.55rem .75rem;background:#ffffff0f;border-bottom:1px solid rgba(255,255,255,.08)}.df-file-bar span{width:8px;height:8px;border-radius:50%;background:#ff6b4a}.df-file-bar span:nth-child(2){background:#d4a017}.df-file-bar span:nth-child(3){background:#0d8f7f}.df-file-bar em{margin-left:.5rem;font-style:normal;font-size:.72rem;font-weight:700;color:#eaf4f18c;font-family:IBM Plex Mono,monospace}.df-file-body{padding:.75rem .65rem;font-family:IBM Plex Mono,monospace;font-size:clamp(.78rem,1.5vw,.92rem);line-height:1.55;color:#eaf4f1;flex:1}.df-code-line{display:flex;align-items:baseline;gap:.55rem;padding:.28rem .45rem;border-radius:8px;margin-bottom:.15rem}.df-code-line.fresh{background:#5ef0d81f;box-shadow:inset 3px 0 #5ef0d8}.df-code-line .ln{width:1.1rem;text-align:right;color:#eaf4f159;font-size:.75em;flex-shrink:0}.df-code-line .k{color:#5ef0d8;font-weight:600}.df-code-line .rest{color:#ffb086}.df-cursor{width:8px;height:1.1em;background:#5ef0d8;margin:.2rem 0 0 1.8rem;border-radius:1px}.df-action{display:inline-flex;align-items:center;gap:.4rem;background:#0d8f7f;color:#fff;font-weight:800;font-size:.78rem;padding:.45rem .75rem;border-radius:999px;white-space:nowrap;box-shadow:0 8px 20px #0d8f7f4d}.df-action.run{background:#ff6b4a;box-shadow:0 8px 20px #ff6b4a4d}.layer-stage{flex:1;display:flex;flex-direction:column;gap:.75rem;justify-content:center}.layer-stack{display:flex;flex-direction:column-reverse;gap:.4rem}.layer-stage.sealed .layer-stack{gap:0;box-shadow:0 12px 28px #1220292e;border-radius:14px;overflow:hidden}.layer{background:#122029;color:#eaf4f1;font-family:IBM Plex Mono,monospace;padding:.65rem .85rem;border-radius:12px;border-left:4px solid #5ef0d8;display:flex;justify-content:space-between;align-items:center;gap:.5rem;box-shadow:0 6px 16px #12202926}.layer.fresh{border-left-color:#ff6b4a;box-shadow:0 0 0 2px #ff6b4a4d}.layer.packed{border-radius:0;border-left-width:3px;box-shadow:none;border-bottom:1px solid rgba(255,255,255,.06)}.layer-cmd{font-weight:600;color:#5ef0d8;font-size:.85rem}.layer-tip{font-size:.72rem;color:#eaf4f180}.image-ribbon{display:flex;flex-wrap:wrap;align-items:center;gap:.45rem .75rem;background:linear-gradient(145deg,#d8f5f0,#fff);border:2px solid rgba(13,143,127,.35);border-radius:14px;padding:.75rem 1rem}.image-ribbon strong{font-family:Outfit,sans-serif;font-size:1.05rem}.image-ribbon .muted{font-size:.78rem;font-weight:700;color:#5a6d78}.container-run{background:linear-gradient(145deg,#ffe8e1,#fff);border:2px solid rgba(255,107,74,.4);border-radius:14px;padding:.85rem 1rem;display:flex;flex-direction:column;gap:.25rem}.container-run strong{font-family:Outfit,sans-serif}.container-run .run-pulse{font-family:IBM Plex Mono,monospace;font-size:.82rem;font-weight:700;color:#ff6b4a;margin-top:.25rem}.badge-pill{display:inline-block;font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;font-weight:800;color:#0d8f7f}.container-run .badge-pill{color:#ff6b4a}.df-pipeline{grid-column:1 / -1;display:flex;align-items:center;justify-content:center;gap:.65rem;flex-wrap:wrap;padding-top:.25rem}.df-pipeline span{font-weight:800;color:#0d8f7f;font-size:1.2rem}.pipe-chip{background:#fff;border:2px solid rgba(15,28,36,.12);border-radius:999px;padding:.5rem 1rem;font-weight:800;font-size:.9rem;box-shadow:0 8px 20px #0f1c240f}.pipe-chip.teal{background:#d8f5f0;border-color:#0d8f7f;color:#0d8f7f}.pipe-chip.coral{background:#ffe8e1;border-color:#ff6b4a;color:#ff6b4a}.compose-viz{height:100%;min-height:360px;padding:1.25rem;display:flex;flex-direction:column;justify-content:center}.host-frame{position:relative;border:2px dashed rgba(15,28,36,.15);border-radius:16px;padding:2rem 1.25rem 1.5rem;background:#ffffff73}.host-frame:before{content:"Docker network · appnet";position:absolute;top:-.65rem;left:1rem;background:#f7fafc;padding:0 .5rem;font-size:.72rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#5a6d78}.compose-row{display:flex;align-items:center;justify-content:center;gap:0;width:100%;min-height:140px}.svc{flex:0 0 auto;width:min(150px,26vw);background:#122029;color:#eaf4f1;border-radius:16px;padding:.95rem .85rem;box-shadow:0 12px 28px #12202940;text-align:center;z-index:2}.svc .name{font-family:Outfit,sans-serif;font-weight:800;color:#5ef0d8;font-size:1.05rem}.svc .port{font-family:IBM Plex Mono,monospace;font-size:.75rem;opacity:.7;margin-top:.25rem}.svc .status{font-size:.7rem;margin-top:.4rem;opacity:.8;min-height:1.1em}.svc.waiting{outline:2px dashed #d4a017;outline-offset:2px}.svc.healthy{outline:2px solid #5ef0d8;outline-offset:2px}.svc.blocked{opacity:.4}.svc.idle{opacity:.85}.link{position:relative;flex:1 1 48px;max-width:100px;height:4px;margin:0 .15rem;border-radius:99px;background:#0f1c241a;overflow:visible;z-index:1}.link.on{background:linear-gradient(90deg,#0d8f7f,#5ef0d8)}.packet{width:12px;height:12px;border-radius:50%;background:#ff6b4a;box-shadow:0 0 12px #ff6b4ab3;flex-shrink:0}.link .packet{position:absolute;top:50%;left:0;margin-top:-6px;margin-left:-6px}.link-label{position:absolute;top:-1.35rem;left:50%;transform:translate(-50%);white-space:nowrap;font-family:IBM Plex Mono,monospace;font-size:.65rem;font-weight:700;color:#0d8f7f;opacity:0;pointer-events:none}.link.on .link-label{opacity:1}.browser-row{display:flex;justify-content:flex-start;margin-top:1.25rem;padding-left:clamp(.25rem,4vw,1.5rem);min-height:44px;align-items:center;gap:.65rem}.browser-chip{background:#fff;border:2px solid #0d8f7f;border-radius:999px;padding:.55rem 1rem;font-weight:800;font-size:.85rem;color:#0d8f7f}.browser-wire{width:36px;height:3px;border-radius:99px;background:#0d8f7f}@media(max-width:640px){.compose-row{flex-wrap:wrap;gap:.75rem;justify-content:center}.link{flex-basis:100%;max-width:none;height:28px;width:4px;margin:0 auto}.link.on{background:linear-gradient(180deg,#0d8f7f,#5ef0d8)}.link-label{top:50%;left:12px;transform:translateY(-50%)}}.controls{display:flex;align-items:center;gap:.65rem;flex-wrap:wrap}.controls button{appearance:none;border:none;background:#0f1c24;color:#fff;font:inherit;font-weight:800;padding:.75rem 1.2rem;border-radius:999px;cursor:pointer;min-height:48px}.controls button.ghost{background:#fff;color:#5a6d78;border:1px solid rgba(15,28,36,.12)}.progress-track{flex:1;min-width:120px;height:8px;background:#eef4f7;border-radius:99px;overflow:hidden}.progress-track>i{display:block;height:100%;background:linear-gradient(90deg,#0d8f7f,#2ec4b6);border-radius:99px;width:0%;transition:width .25s ease}.step-dots{display:flex;gap:.35rem}.step-dots i{width:8px;height:8px;border-radius:50%;background:#0f1c2426}.step-dots i.on{background:#0d8f7f;transform:scale(1.2)}.hint-row{margin-top:.85rem;font-size:.9rem;color:#5a6d78;font-weight:700}.cmd-page{min-height:100%;height:100dvh;overflow:auto;touch-action:pan-y;background:radial-gradient(ellipse 70% 50% at 100% 0%,rgba(13,143,127,.1),transparent 50%),radial-gradient(ellipse 50% 40% at 0% 100%,rgba(255,107,74,.08),transparent 45%),#f7fafc;color:#0f1c24;font-family:Nunito,system-ui,sans-serif;padding:1.25rem clamp(1rem,3vw,2rem) 2.5rem}.cmd-top{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:1rem}.cmd-top h1{font-family:Outfit,sans-serif;font-weight:800;font-size:clamp(1.5rem,3.5vw,2.2rem);letter-spacing:-.03em}.cmd-top h1 span{color:#0d8f7f}.cmd-nav{display:flex;gap:.5rem;flex-wrap:wrap}.cmd-nav a{appearance:none;border:1px solid rgba(15,28,36,.12);background:#fff;color:#0f1c24;font:inherit;font-weight:800;font-size:.85rem;padding:.65rem 1rem;border-radius:999px;text-decoration:none;box-shadow:0 8px 24px #0f1c240f}.cmd-nav a.primary{background:#0d8f7f;color:#fff;border-color:#0d8f7f}.cmd-tabs{display:flex;gap:.45rem;margin-bottom:1rem;flex-wrap:wrap}.cmd-tabs button{appearance:none;border:2px solid transparent;background:#fff;font:inherit;font-weight:800;padding:.65rem 1.05rem;border-radius:14px;cursor:pointer;color:#5a6d78;box-shadow:0 8px 24px #0f1c240f}.cmd-tabs button.active{color:#0d8f7f;border-color:#0d8f7f;background:#d8f5f0}.cmd-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,340px),1fr));gap:.85rem}.cmd-card{background:#fff;border:1px solid rgba(15,28,36,.1);border-radius:18px;padding:1rem 1.1rem;box-shadow:0 12px 32px #0f1c2412;display:flex;flex-direction:column;gap:.55rem}.cmd-card h3{font-family:Outfit,sans-serif;font-size:1.05rem;font-weight:800}.cmd-card .why{font-size:.9rem;font-weight:650;color:#5a6d78;line-height:1.4}.cmd-card pre{margin:0;background:#122029;color:#eaf4f1;font-family:IBM Plex Mono,monospace;font-size:clamp(.72rem,1.4vw,.85rem);line-height:1.5;padding:.85rem .95rem;border-radius:12px;overflow-x:auto;white-space:pre-wrap;word-break:break-word;-webkit-user-select:text;user-select:text;touch-action:pan-x pan-y}.cmd-card pre .c{color:#7a9e96}.cmd-card pre .h{color:#5ef0d8}.cmd-card .flags{display:flex;flex-wrap:wrap;gap:.35rem}.flag{font-family:IBM Plex Mono,monospace;font-size:.72rem;font-weight:700;background:#eef4f7;color:#0f1c24;padding:.3rem .5rem;border-radius:8px;cursor:pointer;border:1px solid transparent;transition:background .15s,border-color .15s}.flag:hover,.flag.on{background:#d8f5f0;border-color:#0d8f7f;color:#0d8f7f}.flag-tip{font-size:.82rem;font-weight:700;color:#0d8f7f;background:#d8f5f0;border-radius:10px;padding:.55rem .7rem;min-height:2.4em}.copy-btn{align-self:flex-start;appearance:none;border:1px solid rgba(15,28,36,.12);background:#f7fafc;font:inherit;font-weight:800;font-size:.75rem;padding:.4rem .7rem;border-radius:999px;cursor:pointer;color:#5a6d78}.copy-btn.ok{color:#0d8f7f;background:#d8f5f0;border-color:#0d8f7f}.cmd-hint{margin-top:1rem;font-size:.88rem;color:#5a6d78;font-weight:700}:root{--bg: #f7fafc;--bg-soft: #eef4f7;--ink: #0f1c24;--muted: #5a6d78;--teal: #0d8f7f;--teal-soft: #d8f5f0;--coral: #ff6b4a;--coral-soft: #ffe8e1;--sun: #d4a017;--white: #ffffff;--line: rgba(15, 28, 36, .1);--code-bg: #122029;--code-fg: #eaf4f1;--shadow: 0 12px 40px rgba(15, 28, 36, .08);--safe-t: env(safe-area-inset-top, 0px);--safe-b: env(safe-area-inset-bottom, 0px);--bar: 54px;--foot: 58px}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;overflow:hidden;font-family:Nunito,system-ui,sans-serif;background:var(--bg);color:var(--ink);-webkit-tap-highlight-color:transparent;touch-action:none;-webkit-user-select:none;user-select:none}button{font:inherit;cursor:pointer}.app{display:grid;grid-template-rows:var(--bar) 1fr var(--foot);height:100%;height:100dvh}.toolbar{display:flex;align-items:center;gap:.3rem;padding:0 .65rem;padding-top:var(--safe-t);height:var(--bar);background:var(--white);border-bottom:1px solid var(--line);z-index:40;overflow-x:auto;scrollbar-width:none;box-shadow:0 1px #0f1c240a}.toolbar::-webkit-scrollbar{display:none}.brand{font-family:Outfit,sans-serif;font-weight:800;font-size:.95rem;color:var(--teal);margin-right:.35rem;white-space:nowrap}.brand em{color:var(--coral);font-style:normal}.tool-btn,.size-chip{appearance:none;border:1px solid transparent;background:transparent;color:var(--muted);min-width:42px;min-height:42px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;gap:.25rem;padding:0 .5rem;font-size:.75rem;font-weight:700;flex-shrink:0;transition:background .15s,color .15s,transform .12s}.tool-btn:active,.size-chip:active{transform:scale(.94)}.tool-btn.active{background:var(--teal-soft);color:var(--teal);border-color:#0d8f7f40}.tool-btn.hot.active{background:var(--coral-soft);color:var(--coral);border-color:#ff6b4a4d}.tool-btn svg{width:18px;height:18px}.tool-btn .label{display:none}@media(min-width:1000px){.tool-btn .label{display:inline}}.sep{width:1px;height:22px;background:var(--line);margin:0 .15rem;flex-shrink:0}.color-swatch{width:24px;height:24px;border-radius:50%;border:2px solid rgba(15,28,36,.12);flex-shrink:0;padding:0}.color-swatch.active{outline:2px solid var(--teal);outline-offset:2px}.size-chip{min-width:32px;height:32px;border:1px solid var(--line);border-radius:8px}.size-chip.active{background:var(--bg-soft);color:var(--ink)}.stage-wrap{position:relative;overflow:hidden;background:radial-gradient(ellipse 80% 60% at 100% 0%,rgba(13,143,127,.07),transparent 55%),radial-gradient(ellipse 60% 50% at 0% 100%,rgba(255,107,74,.06),transparent 50%),var(--bg)}.stage{position:absolute;inset:0}.slide{position:absolute;inset:0;padding:clamp(1.1rem,3vh,2.2rem) clamp(1.35rem,4vw,3.25rem);overflow:auto;-webkit-overflow-scrolling:touch;touch-action:pan-y;-webkit-user-select:text;user-select:text;display:flex;flex-direction:column;justify-content:center}.slide.top{justify-content:flex-start;padding-top:clamp(1.35rem,3.5vh,2.4rem)}.eyebrow{font-size:clamp(.72rem,1.3vw,.85rem);font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--coral);margin-bottom:.35rem}h1,.display,h2{font-family:Outfit,sans-serif;font-weight:800;letter-spacing:-.03em;line-height:1.05;color:var(--ink)}.display{font-size:clamp(2.8rem,8.5vw,5.8rem)}.display span{color:var(--teal)}h2{font-size:clamp(1.85rem,5vw,3.2rem);margin-bottom:.55rem}.lead{font-size:clamp(1.1rem,2.4vw,1.5rem);color:var(--muted);max-width:36ch;line-height:1.4;margin-top:.45rem}p,li{font-size:clamp(1rem,2vw,1.3rem);line-height:1.5;color:var(--muted)}strong{color:var(--ink);font-weight:800}.term{font-family:IBM Plex Mono,monospace;font-weight:600;font-size:.9em;background:var(--teal-soft);color:var(--teal);padding:.05em .35em;border-radius:5px}.grid-2,.grid-3,.grid-4{display:grid;gap:clamp(.7rem,1.4vw,1.1rem);margin-top:clamp(.9rem,2.2vh,1.5rem);width:100%}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}@media(max-width:800px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.grid-2.keep-2{grid-template-columns:1fr 1fr}}@media(min-width:801px)and (max-width:1100px){.grid-3,.grid-4{grid-template-columns:1fr 1fr}}.tile{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:clamp(1rem,2vw,1.4rem);min-height:clamp(100px,16vh,150px);display:flex;flex-direction:column;justify-content:center;box-shadow:var(--shadow);position:relative}.tile h3{font-family:Outfit,sans-serif;font-weight:700;font-size:clamp(1.1rem,2vw,1.35rem);margin-bottom:.3rem}.tile p{font-size:clamp(.92rem,1.6vw,1.1rem)}.tap-card{cursor:pointer;touch-action:manipulation}.tap-card .badge{position:absolute;top:.7rem;right:.8rem;font-size:.65rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--coral);opacity:.7}.tap-card.open{background:var(--ink);color:#f7fafc;border-color:var(--ink)}.tap-card.open h3{color:#5ef0d8}.tap-card.open p{color:#f7fafcd1}.tap-card.open .badge{color:#5ef0d8}.flow{display:flex;flex-wrap:wrap;align-items:center;gap:.45rem;margin-top:clamp(1.1rem,2.8vh,1.8rem)}.flow .box{background:var(--white);border:1px solid var(--line);padding:.6rem 1.05rem;border-radius:999px;font-weight:800;font-size:clamp(.92rem,1.7vw,1.1rem);box-shadow:var(--shadow);cursor:pointer;touch-action:manipulation}.flow .box.on{background:var(--teal);color:#fff;border-color:var(--teal)}.flow .arrow{color:var(--teal);font-weight:800;font-size:1.2rem}.callout{margin-top:1rem;padding:.85rem 1.1rem;background:var(--coral-soft);border-left:5px solid var(--coral);border-radius:0 14px 14px 0;font-size:clamp(.98rem,1.8vw,1.15rem);color:var(--ink);font-weight:700}.pop{margin-top:.9rem;padding:.95rem 1.15rem;background:var(--white);border:1px solid var(--line);border-radius:14px;font-size:clamp(.98rem,1.8vw,1.15rem);line-height:1.45;box-shadow:var(--shadow);color:var(--ink)}.pop strong{color:var(--teal)}.hint{margin-top:1.2rem;font-size:.9rem;color:var(--muted);opacity:.8}.reveal-item{font-size:clamp(1.05rem,2.2vw,1.35rem);color:var(--muted);margin-top:.65rem}.reveal-item.current{color:var(--ink);font-weight:800}.reveal-bar{display:flex;align-items:center;gap:.7rem;margin-top:auto;padding-top:1.1rem}.reveal-btn{appearance:none;border:none;background:var(--teal);color:#fff;font-weight:800;font-size:.95rem;padding:.8rem 1.3rem;border-radius:999px;min-height:50px;box-shadow:0 8px 20px #0d8f7f40}.reveal-btn:disabled{opacity:.35;box-shadow:none}.reveal-btn.ghost{background:transparent;color:var(--muted);border:1px solid var(--line);box-shadow:none}.reveal-dots{display:flex;gap:.35rem;margin-left:auto}.reveal-dots i{width:9px;height:9px;border-radius:50%;background:#0f1c2426;display:block}.reveal-dots i.on{background:var(--teal);transform:scale(1.2)}.df-build{margin-top:.9rem;width:100%;max-width:920px}.stepper{display:flex;flex-wrap:wrap;gap:.4rem;align-items:center;margin-bottom:.8rem}.step-pill{appearance:none;border:2px solid var(--line);background:var(--white);color:var(--muted);font-family:IBM Plex Mono,monospace;font-weight:600;font-size:clamp(.78rem,1.4vw,.92rem);padding:.5rem .8rem;border-radius:999px;min-height:42px;box-shadow:var(--shadow)}.step-pill.done{background:var(--teal-soft);border-color:var(--teal);color:var(--teal)}.step-pill.next{border-color:var(--coral);color:var(--coral);box-shadow:0 0 0 3px #ff6b4a2e;animation:pulse 1.5s ease infinite}@keyframes pulse{50%{opacity:.65}}.step-reset{appearance:none;border:1px solid var(--line);background:transparent;font-weight:800;font-size:.78rem;padding:.45rem .8rem;border-radius:999px;min-height:42px;color:var(--muted)}.code-grow{background:var(--code-bg);color:var(--code-fg);border-radius:16px;padding:clamp(1rem,2vw,1.35rem);font-family:IBM Plex Mono,monospace;font-size:clamp(.92rem,1.9vw,1.15rem);line-height:1.55;min-height:7.5rem;box-shadow:var(--shadow)}.code-grow .line{display:none;padding:.15rem .5rem;margin:0 -.5rem;border-radius:6px}.code-grow .line.show{display:block}.code-grow .line.fresh{background:#5ef0d81f;box-shadow:inset 3px 0 #5ef0d8}.code-grow .k{color:#5ef0d8}.code-grow .s{color:#ffb086}.code-grow .c{color:#7a9e96}.df-note{margin-top:.8rem;padding:.85rem 1.05rem;background:var(--white);border:1px solid var(--line);border-radius:14px;font-size:clamp(1rem,1.9vw,1.2rem);color:var(--ink);min-height:3rem;box-shadow:var(--shadow)}.df-note .when{display:block;margin-top:.3rem;font-size:.72rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--sun)}pre.code{font-family:IBM Plex Mono,monospace;font-size:clamp(.8rem,1.6vw,1rem);line-height:1.5;background:var(--code-bg);color:var(--code-fg);padding:1.1rem 1.2rem;border-radius:16px;overflow-x:auto;margin-top:.8rem;white-space:pre;-webkit-user-select:text;user-select:text;touch-action:pan-x pan-y;box-shadow:var(--shadow)}pre.code .k{color:#5ef0d8}pre.code .s{color:#ffb086}pre.code .c{color:#7a9e96}.table-wrap{overflow-x:auto;margin-top:.9rem;width:100%}table{width:100%;border-collapse:collapse;font-size:clamp(.95rem,1.8vw,1.15rem)}th,td{text-align:left;padding:.7rem .8rem;border-bottom:1px solid var(--line)}th{color:var(--teal);font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;font-weight:800}td:first-child{font-family:IBM Plex Mono,monospace;font-weight:600;color:var(--ink)}tr.hot-row{cursor:pointer}tr.hot-row:active{background:var(--teal-soft)}.diagram{margin-top:1.1rem;padding:1.15rem;background:var(--white);border:1px dashed var(--line);border-radius:18px;width:100%;box-shadow:var(--shadow)}.host-label{font-size:.72rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:.7rem}.containers{display:grid;grid-template-columns:repeat(3,1fr);gap:.7rem}@media(max-width:700px){.containers{grid-template-columns:1fr}}.container-box{padding:1rem;border-radius:14px;background:linear-gradient(145deg,#16303a,#122029);color:#f7fafc;cursor:pointer;min-height:92px;touch-action:manipulation}.container-box.on{box-shadow:0 0 0 3px #5ef0d8}.container-box .cn{font-family:Outfit,sans-serif;font-weight:700;color:#5ef0d8;font-size:1.15rem}.container-box .ci{opacity:.65;margin-top:.2rem;font-size:.9rem}.port-viz{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:.45rem;align-items:center;margin-top:1.3rem;width:100%}.port-viz .node{padding:1.15rem .7rem;border-radius:16px;background:var(--white);border:2px solid var(--line);text-align:center;cursor:pointer;font-weight:800;font-size:clamp(.95rem,1.9vw,1.2rem);min-height:96px;display:flex;flex-direction:column;justify-content:center;box-shadow:var(--shadow);touch-action:manipulation}.port-viz .node small{font-weight:700;opacity:.5;font-size:.82em;margin-top:.2rem}.port-viz .node.on{background:var(--teal);color:#fff;border-color:var(--teal)}.port-viz .pipe{color:var(--teal);font-size:1.6rem;font-weight:800}@media(max-width:700px){.port-viz{grid-template-columns:1fr}.port-viz .pipe{transform:rotate(90deg);justify-self:center}}.quiz-q{font-family:Outfit,sans-serif;font-weight:700;font-size:clamp(1.25rem,2.8vw,1.7rem);margin:.7rem 0 .9rem}.quiz-opts{display:flex;flex-direction:column;gap:.55rem;max-width:720px}.quiz-opt{appearance:none;text-align:left;border:2px solid var(--line);background:var(--white);color:var(--ink);font-weight:700;font-size:clamp(1rem,1.9vw,1.2rem);padding:1rem 1.15rem;border-radius:14px;min-height:56px;box-shadow:var(--shadow);touch-action:manipulation}.quiz-opt.correct{background:var(--teal-soft);border-color:var(--teal);color:var(--teal)}.quiz-opt.wrong{background:var(--coral-soft);border-color:var(--coral);color:#b33a22}.quiz-fb{margin-top:.9rem;padding:.95rem 1.1rem;background:var(--white);border:1px solid var(--line);border-radius:14px;font-size:clamp(1rem,1.9vw,1.15rem);box-shadow:var(--shadow)}.demo-split{display:grid;grid-template-columns:minmax(220px,.95fr) minmax(260px,1.15fr);gap:clamp(.9rem,2.2vw,1.6rem);align-items:stretch;flex:1;min-height:0;width:100%;margin-top:.3rem}@media(max-width:860px){.demo-split{grid-template-columns:1fr}}.demo-left .reveal-item{font-size:clamp(.92rem,1.7vw,1.15rem)!important;padding:.35rem .5rem;border-radius:10px;cursor:pointer}.demo-left .reveal-item.current{background:var(--teal-soft)}.demo-right .demo-label{font-size:.7rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:.4rem}.demo-right pre.code{margin:0;min-height:11rem;max-height:min(46vh,400px);font-size:clamp(.7rem,1.35vw,.88rem)}.draw-layer{position:absolute;inset:0;width:100%;height:100%;z-index:20;pointer-events:none;touch-action:none}.draw-layer.drawing{pointer-events:auto;cursor:crosshair}.laser-dot{position:absolute;width:20px;height:20px;border-radius:50%;background:radial-gradient(circle,#ff3b3b 0%,#ff3b3b 35%,transparent 70%);box-shadow:0 0 16px 5px #ff3b3b80;pointer-events:none;z-index:25;transform:translate(-50%,-50%)}.mode-banner{position:absolute;top:.7rem;right:1rem;z-index:30;font-size:.68rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;padding:.3rem .55rem;border-radius:8px;background:var(--white);color:var(--teal);border:1px solid var(--line);box-shadow:var(--shadow)}.footer{display:flex;align-items:center;gap:.6rem;padding:0 .75rem;padding-bottom:var(--safe-b);height:calc(var(--foot) + var(--safe-b));background:var(--white);border-top:1px solid var(--line);z-index:40}.nav-btn{appearance:none;border:1px solid var(--line);background:var(--bg-soft);color:var(--ink);min-width:56px;min-height:44px;border-radius:14px;font-weight:800;font-size:.88rem;padding:0 1.05rem}.nav-btn:hover{background:var(--teal-soft);color:var(--teal)}.progress{flex:1;text-align:center;font-size:.82rem;color:var(--muted);font-weight:700}.progress strong{color:var(--teal)}.progress-bar{height:5px;background:var(--bg-soft);border-radius:99px;margin-top:.3rem;overflow:hidden}.progress-bar>i{display:block;height:100%;width:0%;background:linear-gradient(90deg,var(--teal),#2ec4b6);border-radius:99px;transition:width .3s ease}.overview{position:fixed;inset:0;z-index:60;background:#f7fafcf5;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:1.25rem;overflow:auto;touch-action:pan-y}.overview h2{color:var(--teal);font-family:Outfit,sans-serif;margin-bottom:1rem;font-size:1.2rem}.overview-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:.6rem}.thumb{background:var(--white);color:var(--ink);border-radius:14px;padding:.8rem;border:2px solid var(--line);text-align:left;min-height:84px;box-shadow:var(--shadow)}.thumb.current{border-color:var(--teal);background:var(--teal-soft)}.thumb .n{font-size:.68rem;font-weight:800;color:var(--teal)}.thumb .t{font-size:.82rem;font-weight:800;margin-top:.2rem}.toast{position:fixed;bottom:calc(var(--foot) + 1rem);left:50%;transform:translate(-50%);background:var(--ink);color:#f7fafc;padding:.55rem 1.1rem;border-radius:999px;font-size:.8rem;font-weight:700;z-index:55;box-shadow:var(--shadow)}