* { box-sizing: border-box; }
body { margin: 0; background: #0d1214; color: #dfe7ea; font: 16px/1.6 "Segoe UI", Roboto, Arial, sans-serif; }
a { color: #6ea8d8; }
.w { max-width: 960px; margin: 0 auto; padding: 0 20px; }
.bar { border-bottom: 1px solid #27343a; background: #141b1e; }
.bar .w { display: flex; align-items: center; gap: 16px; min-height: 58px; flex-wrap: wrap; }
.brand { color: #dfe7ea; text-decoration: none; } .brand b { color: #5fc28a; font-family: Consolas, monospace; letter-spacing: 1px; }
.bar nav { margin-left: auto; display: flex; gap: 4px; align-items: center; flex-wrap: wrap; }
.bar nav a { color: #9aaab1; text-decoration: none; padding: 6px 10px; border-radius: 6px; }
.bar nav a:hover { background: #1a2327; color: #dfe7ea; }
.bar form { margin: 0; } .bar button { background: none; border: 1px solid #27343a; color: #9aaab1; border-radius: 6px; padding: 5px 10px; cursor: pointer; }
main { padding: 26px 20px 60px; }
h1 { font-size: 26px; margin: 0 0 10px; }
.muted { color: #9aaab1; } .small { font-size: 13.5px; }
code { font-family: Consolas, "JetBrains Mono", monospace; background: #1a2327; border: 1px solid #27343a; padding: 1px 6px; border-radius: 5px; word-break: break-all; color: #e9d8a6; }
.err { color: #e27b7b; } .ok { color: #5fc28a; }
.prog { height: 8px; background: #27343a; border-radius: 4px; overflow: hidden; margin-top: 12px; }
.prog i { display: block; height: 100%; background: #5fc28a; }
.login { max-width: 560px; margin: 30px auto; background: #141b1e; border: 1px solid #27343a; border-radius: 14px; padding: 26px; }
.login form { display: flex; gap: 8px; margin: 16px 0 8px; }
input { flex: 1; min-width: 0; background: #1a2327; border: 1px solid #27343a; color: #dfe7ea; border-radius: 8px; padding: 10px 12px; font: 15px Consolas, "JetBrains Mono", monospace; outline: none; }
input:focus { border-color: #5fc28a; }
button { background: #5fc28a; color: #08130d; border: 0; border-radius: 8px; padding: 10px 18px; font-weight: 700; cursor: pointer; }
button:disabled { opacity: .5; }
.stages { display: flex; flex-direction: column; gap: 12px; margin-top: 20px; }
.st { background: #141b1e; border: 1px solid #27343a; border-radius: 12px; }
.st header { display: flex; align-items: center; gap: 14px; padding: 12px 16px; }
.st h2 { font-size: 17px; margin: 0; } .st small { color: #9aaab1; }
.num { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: #1a2327; border: 1px solid #27343a; font-weight: 700; flex: 0 0 auto; }
.tag { margin-left: auto; font-size: 12.5px; padding: 2px 10px; border-radius: 20px; border: 1px solid #27343a; color: #9aaab1; }
.st.done { border-color: rgba(95, 194, 138, .5); } .st.done .num { background: #5fc28a; color: #08130d; border-color: #5fc28a; } .st.done .tag { color: #5fc28a; border-color: #5fc28a; }
.st.open { border-color: #e0a84a; } .st.open .tag { color: #e0a84a; border-color: #e0a84a; } .st.open .num { border-color: #e0a84a; color: #e0a84a; }
.st.lock { opacity: .55; }
.st .in { padding: 0 16px 16px 64px; }
.task { background: #1a2327; border-left: 3px solid #e0a84a; padding: 8px 12px; border-radius: 0 8px 8px 0; }
.lnk { font-weight: 600; }
details { margin: 8px 0; } summary { cursor: pointer; color: #9aaab1; } details ol { color: #9aaab1; }
.chk { display: flex; gap: 8px; margin-top: 10px; }
.fb { margin: 8px 0 0; font-size: 14.5px; } .fb.ok { color: #5fc28a; word-break: break-all; } .fb.bad { color: #e0a84a; }
.final { margin-top: 24px; background: rgba(95, 194, 138, .1); border: 1px solid #5fc28a; border-radius: 12px; padding: 18px 20px; }
.th small { font-size: 14px; color: #9aaab1; font-weight: 400; margin-left: 8px; }
.term { background: #05080a; border: 1px solid #27343a; border-radius: 10px; padding: 14px 16px; height: 62vh; min-height: 360px; overflow: auto; font: 14px/1.45 Consolas, "JetBrains Mono", "Courier New", monospace; color: #cfe3d6; cursor: text; }
.term #out div { white-space: pre-wrap; word-break: break-word; }
.term .err { color: #e27b7b; }
.term .line { display: flex; } .term #pr { white-space: pre; color: #5fc28a; }
.term input { background: transparent; border: 0; padding: 0; color: #cfe3d6; font: inherit; flex: 1; }
@media (max-width: 640px) { .st .in { padding-left: 16px; } }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; margin-top: 18px; }
.tk { background: #141b1e; border: 1px solid #27343a; border-radius: 12px; padding: 14px 16px; display: flex; flex-direction: column; }
.tk header { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.tk h2 { font-size: 16.5px; margin: 0; flex: 1; }
.tk .pts { font-size: 13px; color: #e0a84a; font-weight: 700; white-space: nowrap; }
.tk p { margin: 0 0 8px; font-size: 15px; }
.tk .info { display: flex; flex-wrap: wrap; gap: 6px 12px; font-size: 14px; color: #9aaab1; }
.tk .info a { font-weight: 600; }
.tk form { margin-top: auto; }
.tk.done { border-color: rgba(95, 194, 138, .55); }
.tk.done .num { background: #5fc28a; color: #08130d; border-color: #5fc28a; }