@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:400;font-display:swap;src:url(../media/da8a9dd0d68e512b-s.0n8i_inn0i2i9.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:400;font-display:swap;src:url(../media/94b4a5dc1fe84361-s.3wm_n5jv1to7s.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:400;font-display:swap;src:url(../media/ff5be760267bb4bc-s.3dkqd4mro2h3_.woff2)format("woff2");unicode-range:U+1F??}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:400;font-display:swap;src:url(../media/99596c30eb072d3c-s.2fp9tilo6sy14.woff2)format("woff2");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:400;font-display:swap;src:url(../media/e5864b32625b6bc3-s.0m7i6b77o5yxd.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:400;font-display:swap;src:url(../media/e285ad1a914469f0-s.15241mr5-1s6i.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:400;font-display:swap;src:url(../media/47df9ba1c7236d3b-s.p.137759vg1sbmi.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:600;font-display:swap;src:url(../media/da8a9dd0d68e512b-s.0n8i_inn0i2i9.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:600;font-display:swap;src:url(../media/94b4a5dc1fe84361-s.3wm_n5jv1to7s.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:600;font-display:swap;src:url(../media/ff5be760267bb4bc-s.3dkqd4mro2h3_.woff2)format("woff2");unicode-range:U+1F??}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:600;font-display:swap;src:url(../media/99596c30eb072d3c-s.2fp9tilo6sy14.woff2)format("woff2");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:600;font-display:swap;src:url(../media/e5864b32625b6bc3-s.0m7i6b77o5yxd.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:600;font-display:swap;src:url(../media/e285ad1a914469f0-s.15241mr5-1s6i.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:600;font-display:swap;src:url(../media/47df9ba1c7236d3b-s.p.137759vg1sbmi.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:700;font-display:swap;src:url(../media/da8a9dd0d68e512b-s.0n8i_inn0i2i9.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:700;font-display:swap;src:url(../media/94b4a5dc1fe84361-s.3wm_n5jv1to7s.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:700;font-display:swap;src:url(../media/ff5be760267bb4bc-s.3dkqd4mro2h3_.woff2)format("woff2");unicode-range:U+1F??}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:700;font-display:swap;src:url(../media/99596c30eb072d3c-s.2fp9tilo6sy14.woff2)format("woff2");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:700;font-display:swap;src:url(../media/e5864b32625b6bc3-s.0m7i6b77o5yxd.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:700;font-display:swap;src:url(../media/e285ad1a914469f0-s.15241mr5-1s6i.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:700;font-display:swap;src:url(../media/47df9ba1c7236d3b-s.p.137759vg1sbmi.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:"Source Sans 3 Fallback";src:local(Arial);ascent-override:109.21%;descent-override:42.66%;line-gap-override:0.0%;size-adjust:93.76%}.source_sans_3_210f3683-module__C6D6ZG__className{font-family:"Source Sans 3","Source Sans 3 Fallback";font-style:normal}.source_sans_3_210f3683-module__C6D6ZG__variable{--font-sans:"Source Sans 3", "Source Sans 3 Fallback"}
@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(../media/5e05ae5b48faa55e-s.1yd4_i3e35931.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(../media/a7afbb44bec2bb18-s.1qc6dx89jd2qv.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(../media/02263ebadd758ea4-s.29yke99gs9qpn.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(../media/68757d6cddeff913-s.1i-sca43-qwng.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(../media/effe91970fc4db64-s.p.0oace-s_gkfks.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:IBM Plex Mono Fallback;src:local(Arial);ascent-override:76.16%;descent-override:20.43%;line-gap-override:0.0%;size-adjust:134.59%}.ibm_plex_mono_c7e33d77-module__1Jl1-a__className{font-family:IBM Plex Mono,IBM Plex Mono Fallback;font-style:normal;font-weight:500}.ibm_plex_mono_c7e33d77-module__1Jl1-a__variable{--font-mono:"IBM Plex Mono", "IBM Plex Mono Fallback"}
:root{--bg:#f7f6f3;--surface:#fff;--surface-2:#f0efeb;--border:#e5e3de;--text:#1a1a18;--muted:#6b6960;--accent:#4a4540;--accent-hover:#3a3632;--git-on:#b7e4c7;--git-on-border:#2d6a4f;--warning:#b45309;--danger:#c0392b;--font:var(--font-sans), "Segoe UI", system-ui, sans-serif;--mono:var(--font-mono), ui-monospace, monospace}*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth}html,body{min-height:100%}body{font-family:var(--font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;margin:0;line-height:1.55}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.container{width:min(1040px,92vw);margin:0 auto}.btn{cursor:pointer;border:1px solid #0000;border-radius:6px;justify-content:center;align-items:center;gap:.5rem;padding:.65rem 1.1rem;font-size:.95rem;font-weight:600;text-decoration:none;transition:background .15s;display:inline-flex}.btn:hover{text-decoration:none}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-ghost{background:var(--surface);border-color:var(--border);color:var(--text)}.btn-ghost:hover{background:var(--surface-2)}.card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:1.25rem 1.5rem}.label{letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-size:.7rem;font-weight:600}.stat-grid{grid-template-columns:repeat(3,1fr);gap:.75rem;display:grid}.stat{text-align:left}.stat-key{color:var(--muted);font-size:.75rem}.stat-val{font-family:var(--mono);font-size:1.5rem;font-weight:600}.stat-val.ok{color:var(--git-on-border)}.stat-val.miss{color:var(--danger)}.heatmap{gap:4px;margin-top:.75rem;display:flex}.heat{border:1px solid var(--border);background:var(--surface-2);cursor:default;border-radius:4px;width:24px;height:24px;position:relative}.heat[data-tooltip]:hover:after,.heat[data-tooltip]:focus-visible:after{content:attr(data-tooltip);border:1px solid var(--border);background:var(--text);color:var(--surface);white-space:nowrap;pointer-events:none;z-index:10;border-radius:4px;padding:.35rem .5rem;font-size:.75rem;line-height:1.2;position:absolute;bottom:calc(100% + 6px);left:50%;transform:translate(-50%)}.heat.on{background:var(--git-on);border-color:var(--git-on-border)}.heat.miss{border-color:var(--danger);background:#f5d0d0}.heat.today{outline:2px solid var(--git-on-border);outline-offset:1px}.home-grid{grid-template-columns:2fr 1fr;gap:1rem;display:grid}@media (max-width:768px){.home-grid{grid-template-columns:1fr}}.tabs{border-bottom:1px solid var(--border);margin-bottom:1rem;display:flex}.tab{cursor:pointer;font:inherit;color:var(--muted);background:0 0;border:none;border-bottom:2px solid #0000;margin-bottom:-1px;padding:.65rem 1rem}.tab.active{color:var(--text);border-bottom-color:var(--accent);font-weight:600}.field{flex-direction:column;gap:.35rem;margin-bottom:1rem;display:flex}.field label{color:var(--muted);font-size:.85rem}.field input{border:1px solid var(--border);background:var(--surface);font:inherit;border-radius:6px;padding:.6rem .75rem}.markdown p{margin:.75rem 0}.markdown h2{letter-spacing:-.01em;margin:1.5rem 0 .6rem;font-size:1.2rem}.markdown h3{margin:1.25rem 0 .5rem;font-size:1.02rem}.markdown h4{text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:1rem 0 .4rem;font-size:.92rem}.markdown>:first-child{margin-top:0}.markdown ul,.markdown ol{margin:.6rem 0;padding-left:1.25rem}.markdown li,.markdown li>ul,.markdown li>ol{margin:.3rem 0}.markdown pre{color:#f3f1ec;font-family:var(--mono);background:#1f1d1a;border-radius:8px;margin:.85rem 0;padding:.85rem 1rem;font-size:.83rem;line-height:1.5;overflow-x:auto}.markdown pre code{color:inherit;font-size:inherit;background:0 0;padding:0}.markdown code{font-family:var(--mono);background:var(--surface-2);border:1px solid var(--border);border-radius:4px;padding:.05rem .3rem;font-size:.86em}.markdown a{color:var(--git-on-border);text-underline-offset:2px;text-decoration:underline}.markdown blockquote{border-left:3px solid var(--git-on-border);background:var(--surface-2);color:var(--text);border-radius:0 6px 6px 0;margin:.85rem 0;padding:.5rem 0 .5rem 1rem}.markdown blockquote p{margin:.25rem 0}.markdown hr{border:none;border-top:1px solid var(--border);margin:1.5rem 0}.markdown__table-wrap{margin:.85rem 0;overflow-x:auto}.markdown table{border-collapse:collapse;width:100%;font-size:.9rem}.markdown th,.markdown td{border:1px solid var(--border);text-align:left;vertical-align:top;padding:.5rem .7rem}.markdown th{background:var(--surface-2);font-weight:600}.markdown strong{font-weight:600}.lesson__nav{flex-wrap:wrap;gap:.4rem;margin-bottom:1rem;display:flex}.lesson__nav-item{border:1px solid var(--border);background:var(--surface);color:var(--muted);font:inherit;cursor:pointer;border-radius:999px;align-items:center;gap:.45rem;padding:.4rem .7rem;font-size:.82rem;transition:border-color .15s,color .15s;display:inline-flex}.lesson__nav-item:hover{color:var(--text)}.lesson__nav-item.is-active{border-color:var(--accent);color:var(--text);font-weight:600}.lesson__nav-num{background:var(--surface-2);width:1.25rem;height:1.25rem;font-family:var(--mono);border-radius:50%;justify-content:center;align-items:center;font-size:.7rem;display:inline-flex}.lesson__nav-item.is-active .lesson__nav-num{background:var(--accent);color:#fff}.lesson__page-head{margin-bottom:.5rem}.lesson__controls{border-top:1px solid var(--border);justify-content:space-between;align-items:center;gap:1rem;margin-top:1.5rem;padding-top:1rem;display:flex}.lesson__done-hint{color:var(--git-on-border);font-size:.88rem;font-weight:600}.sandbox__intro{margin-bottom:1rem}.sandbox__progress{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:.85rem;display:flex}.sandbox__dots{flex-wrap:wrap;gap:.4rem;display:flex}.sandbox__dot{border:1px solid var(--border);background:var(--surface);width:1.85rem;height:1.85rem;color:var(--muted);font-family:var(--mono);cursor:pointer;border-radius:50%;font-size:.78rem;font-weight:600;transition:all .15s}.sandbox__dot--active{border-color:var(--accent);color:var(--text)}.sandbox__dot--done{background:var(--git-on);border-color:var(--git-on-border);color:var(--git-on-border)}.sandbox__step{margin-bottom:1rem}.sandbox__check{border:1px solid var(--border);background:var(--surface-2);border-radius:8px;margin-top:1.25rem;padding:1rem 1.15rem}.sandbox__check-prompt{margin:0 0 .75rem;font-weight:600}.sandbox__choices{gap:.5rem;display:grid}.sandbox__choice{cursor:pointer;align-items:flex-start;gap:.5rem;display:flex}.sandbox__text-input{border:1px solid var(--border);background:var(--surface);width:100%;font-family:var(--mono);border-radius:6px;padding:.6rem .75rem;font-size:.9rem}.sandbox__check-btn{margin-top:.85rem}.sandbox__feedback{border-radius:6px;flex-direction:column;gap:.2rem;margin-top:.85rem;padding:.65rem .85rem;font-size:.9rem;display:flex}.sandbox__feedback--ok{background:var(--git-on);border:1px solid var(--git-on-border);color:var(--git-on-border)}.sandbox__feedback--no{border:1px solid var(--danger);color:var(--danger);background:#f5d0d0}.sandbox__feedback span{color:var(--text)}.sandbox__controls{border-top:1px solid var(--border);justify-content:space-between;align-items:center;gap:1rem;margin-top:1.5rem;padding-top:1rem;display:flex}.sandbox__complete{border-color:var(--git-on-border)}.stage-row{border-bottom:1px solid var(--border);align-items:center;gap:.75rem;padding:.65rem 0;display:flex}.pill{border-radius:4px;margin-left:auto;padding:.2rem .5rem;font-size:.7rem;font-weight:600}.pill-complete{background:var(--surface-2);color:var(--text)}.pill-current{color:#1d4e89;background:#e8f4fd}.pill-locked{background:var(--surface-2);color:var(--muted)}.checklist{margin:0;padding:0;list-style:none}.checklist li{align-items:flex-start;gap:.5rem;padding:.4rem 0;display:flex}.checklist input{margin-top:.25rem}.app-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1.5rem;padding:.85rem 0;display:flex}.app-header__brand{align-items:center;gap:.75rem;display:flex}.app-header__nav{gap:1rem;font-size:.9rem;display:flex}.app-header__nav a{color:var(--muted);text-decoration:none}.app-header__nav a:hover,.app-header__nav a[aria-current=page]{color:var(--text);text-decoration:none}.app-header__nav a[aria-current=page]{font-weight:600}.app-header__user{align-items:center;gap:.75rem;display:flex}.app-header__username{color:var(--muted);font-size:.85rem}.app-header__logout{padding:.4rem .75rem;font-size:.85rem}.app-header__menu-btn{border:1px solid var(--border);background:var(--surface);color:var(--text);font:inherit;cursor:pointer;border-radius:6px;padding:.35rem .65rem;font-size:.82rem;font-weight:600;display:none}.logo{font-family:var(--mono);color:var(--text);align-items:center;gap:.55rem;font-weight:600;text-decoration:none;display:inline-flex}.logo:hover{text-decoration:none}.logo__mark{color:var(--git-on-border);flex-shrink:0}.logo__wordmark{line-height:1}.repo-form__grid{grid-template-columns:1fr 1fr;gap:1rem;display:grid}.settings-row{border-bottom:1px solid var(--border);grid-template-columns:120px 1fr auto;align-items:center;gap:1rem;padding:.75rem 0;display:grid}.settings-row:last-child{border-bottom:none}.settings-row__label{color:var(--muted);font-size:.9rem}.settings-row__value{overflow-wrap:anywhere}.page-loader{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:.65rem;display:flex}.page-loader--page{min-height:50vh;padding:3rem 0}.page-loader--section{padding:2rem 0}.page-loader__ring{border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:2rem;height:2rem;animation:.8s linear infinite spin}.page-loader__brand{font-family:var(--mono);font-size:.95rem;font-weight:600}.page-loader__label{color:var(--muted);font-size:.85rem}@keyframes spin{to{transform:rotate(360deg)}}.skeleton{background:linear-gradient(90deg, var(--surface-2) 0%, #faf9f6 45%, var(--surface-2) 90%);background-size:200% 100%;animation:1.4s ease-in-out infinite shimmer;display:block}.skeleton--sm{border-radius:4px}.skeleton--md{border-radius:6px}.skeleton--full{border-radius:999px}.skeleton-text{flex-direction:column;gap:.55rem;display:flex}.skeleton-card{pointer-events:none}@keyframes shimmer{0%{background-position:100% 0}to{background-position:-100% 0}}.landing-header.app-header{border-bottom:1px solid var(--border);margin-bottom:0;padding:1rem 0}.public-header__actions{align-items:center;gap:.85rem;display:flex}.landing-header__nav{color:var(--muted);font-size:.9rem;text-decoration:none}.landing-header__nav:hover{color:var(--text);text-decoration:none}.landing-header__cta{padding:.5rem .9rem;font-size:.85rem}.btn-lg{padding:.8rem 1.35rem;font-size:1rem}.btn-invert{color:var(--accent);background:#fff;border:1px solid #0000}.btn-invert:hover{background:var(--surface-2)}.btn-ghost-invert{color:#fff;background:0 0;border:1px solid #ffffff59}.btn-ghost-invert:hover{background:#ffffff14}.landing-hero{background:var(--surface);position:relative;overflow:hidden}.landing-hero:before{content:"";pointer-events:none;background:radial-gradient(#4a45400f 0%,#0000 70%);width:55%;height:80%;position:absolute;top:-20%;right:-10%}.landing-hero__inner{grid-template-columns:.88fr 1.12fr;align-items:center;gap:3rem;padding:3.5rem 0 4rem;display:grid;position:relative}.landing-band[id]{scroll-margin-top:1.5rem}.landing-hero__eyebrow{color:var(--accent)}.landing-hero__title{letter-spacing:-.035em;max-width:12ch;margin:.75rem 0 1rem;font-size:clamp(2.35rem,4.8vw,3.5rem);line-height:1.06}.landing-hero__title span{color:var(--accent);display:block}.landing-hero__lede{color:var(--muted);max-width:46ch;margin:0;font-size:1.1rem}.landing-hero__actions{flex-wrap:wrap;align-items:center;gap:.75rem;margin-top:1.75rem;display:flex}.landing-hero__link{color:var(--muted);font-size:.9rem;text-decoration:none}.landing-hero__link:hover{color:var(--text);text-decoration:none}.landing-hero__risk{color:var(--muted);font-size:.85rem;font-family:var(--mono);margin:1rem 0 0}.landing-band{padding:4rem 0}.landing-band__inner--narrow{max-width:680px}.landing-band__label{letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin:0 0 .5rem;font-size:.7rem;font-weight:600}.landing-band__title{letter-spacing:-.03em;margin:0;font-size:clamp(1.6rem,3.5vw,2.1rem);line-height:1.12}.landing-band--problem{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.landing-band--process{background:var(--bg);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.landing-band--outcomes{background:var(--surface-2)}.landing-band--compare{background:var(--bg);padding:4.5rem 0}.landing-band--faq{background:var(--surface);border-top:1px solid var(--border);padding:3.5rem 0 4rem}.landing-trust{background:var(--surface-2);border-bottom:1px solid var(--border)}.landing-trust__inner{grid-template-columns:repeat(4,1fr);gap:1rem;padding:1.1rem 0;display:grid}.landing-trust__item{border-right:1px solid var(--border);flex-direction:column;gap:.15rem;padding:0 .75rem;display:flex}.landing-trust__item:last-child{border-right:none}.landing-trust__item strong{font-family:var(--mono);color:var(--text);font-size:1.05rem}.landing-trust__item span{color:var(--muted);font-size:.78rem;line-height:1.35}.landing-problem__layout{grid-template-columns:.9fr 1.1fr;align-items:start;gap:2.5rem;display:grid}.landing-problem__lede{color:var(--muted);max-width:38ch;margin:1rem 0 0;font-size:1.05rem;line-height:1.55}.landing-problem__grid{flex-direction:column;gap:.75rem;display:flex}.landing-problem__card{background:var(--bg);border:1px solid var(--border);border-left:3px solid var(--danger);border-radius:8px;padding:1rem 1.15rem 1rem 1.25rem}.landing-problem__num{font-family:var(--mono);color:var(--danger);margin-bottom:.35rem;font-size:.72rem;display:block}.landing-problem__card h3{color:var(--text);margin:0 0 .35rem;font-size:1rem}.landing-problem__card p{color:var(--muted);margin:0;font-size:.9rem;line-height:1.45}.landing-loop__header{margin-bottom:1.75rem}.landing-loop{border:1px solid var(--border);background:var(--surface);border-radius:12px;align-items:stretch;display:flex;overflow:hidden;box-shadow:0 12px 32px #1a1a180f}.landing-loop__segment{border-right:1px solid var(--border);flex:1;align-items:center;min-width:0;display:flex}.landing-loop__segment:last-child{border-right:none}.landing-loop__step{flex:1;gap:.85rem;min-width:0;padding:1.35rem 1.25rem;display:flex}.landing-loop__num{background:var(--text);color:#fff;width:2.25rem;height:2.25rem;font-family:var(--mono);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:.75rem;font-weight:700;display:inline-flex}.landing-loop__step h3{margin:0 0 .3rem;font-size:.98rem;line-height:1.2}.landing-loop__step p{color:var(--muted);margin:0;font-size:.85rem;line-height:1.4}.landing-loop__arrow{font-family:var(--mono);color:var(--muted);flex-shrink:0;padding:0 .35rem;font-size:1.25rem;font-weight:700}.landing-outcomes__header{margin-bottom:2rem}.landing-outcomes__lede{max-width:48ch;color:var(--muted);margin:.75rem 0 0}.landing-outcomes__bento{grid-template-rows:auto auto;grid-template-columns:1.2fr 1fr;gap:1rem;display:grid}.landing-outcome{border:1px solid var(--border);background:var(--surface);border-radius:10px;flex-direction:column;gap:.5rem;padding:1.35rem 1.5rem;display:flex}.landing-outcome--featured{background:var(--surface);border:2px solid var(--text);grid-row:span 2;box-shadow:0 8px 24px #1a1a180f}.landing-outcome--featured .landing-outcome__tag{background:var(--text);color:#fff}.landing-outcome--featured p{color:var(--muted)}.landing-outcome--featured .landing-outcome__metric{background:var(--surface-2);color:var(--text)}.landing-outcome__tag{font-family:var(--mono);letter-spacing:.05em;text-transform:uppercase;color:var(--text);background:var(--surface-2);border-radius:4px;align-self:flex-start;padding:.2rem .45rem;font-size:.68rem;font-weight:600}.landing-outcome h3{margin:0;font-size:1.15rem;line-height:1.25}.landing-outcome p{color:var(--muted);flex:1;margin:0;font-size:.92rem;line-height:1.45}.landing-outcome__metric{background:var(--surface-2);font-family:var(--mono);border-radius:4px;margin-top:.5rem;padding:.4rem .55rem;font-size:.75rem;display:inline-block}.landing-compare__title{letter-spacing:-.03em;max-width:20ch;margin:0 0 .75rem;font-size:clamp(1.5rem,3vw,2rem);line-height:1.15}.landing-compare__lede{max-width:52ch;color:var(--muted);margin:0 0 1.5rem;font-size:1.05rem;line-height:1.5}.landing-compare__panel-label{letter-spacing:.07em;text-transform:uppercase;margin:0 0 .35rem;font-size:.68rem;font-weight:600}.landing-compare__panel--them .landing-compare__panel-label{color:#8a877e}.landing-compare__panel--us .landing-compare__panel-label{color:var(--text)}.landing-compare__split{border:1px solid var(--border);border-radius:12px;grid-template-columns:1fr 1fr;display:grid;overflow:hidden;box-shadow:0 12px 40px #1a1a180f}.landing-compare__panel{padding:1.75rem 1.5rem}.landing-compare__panel h3{letter-spacing:-.01em;margin:0 0 1.25rem;font-size:1.1rem;font-weight:600}.landing-compare__panel ul{flex-direction:column;gap:.85rem;margin:0;padding:0;list-style:none;display:flex}.landing-compare__panel li{padding-left:1.5rem;font-size:.95rem;line-height:1.4;position:relative}.landing-compare__panel--them{color:var(--muted);background:#eceae5}.landing-compare__panel--them h3{color:#8a877e}.landing-compare__panel--them li:before{content:"✕";color:var(--danger);font-size:.85rem;font-weight:700;position:absolute;left:0}.landing-compare__panel--us{background:var(--surface)}.landing-compare__panel--us h3{color:var(--text)}.landing-compare__panel--us li:before{content:"✓";color:var(--text);font-weight:700;position:absolute;left:0}.landing-faq__header{margin-bottom:1.5rem}.landing-faq__list{flex-direction:column;display:flex}.landing-faq__item{border-bottom:1px solid var(--border);padding:1rem 0}.landing-faq__item:first-child{border-top:1px solid var(--border)}.landing-faq__item summary{cursor:pointer;font-size:.98rem;font-weight:600;list-style:none}.landing-faq__item summary::-webkit-details-marker{display:none}.landing-faq__item summary:after{content:"+";float:right;color:var(--muted);font-family:var(--mono)}.landing-faq__item[open] summary:after{content:"−"}.landing-faq__item p{color:var(--muted);margin:.75rem 0 0;font-size:.92rem;line-height:1.55}.landing-footer{border-top:1px solid var(--border);background:var(--surface);padding:1.5rem 0 2rem}.landing-footer__inner{grid-template-rows:auto auto;grid-template-columns:auto 1fr;align-items:center;gap:.75rem 2rem;display:grid}.landing-footer__nav{flex-wrap:wrap;justify-content:flex-end;gap:1.25rem;font-size:.88rem;display:flex}.landing-footer__nav a{color:var(--muted);text-decoration:none}.landing-footer__nav a:hover{color:var(--text);text-decoration:none}.landing-footer__tagline{font-family:var(--mono);color:var(--muted);grid-column:1/-1;margin:0;font-size:.78rem}.landing-cta-band{background:var(--surface-2);color:var(--text);border-top:1px solid var(--border)}.landing-cta-band__inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1.5rem;padding:3rem 0;display:flex}.landing-cta-band__tagline{font-family:var(--mono);color:var(--muted);margin:0 0 .5rem;font-size:.8rem}.landing-cta-band h2{letter-spacing:-.02em;max-width:22ch;margin:0 0 .5rem;font-size:clamp(1.5rem,3vw,2rem)}.landing-cta-band p{max-width:42ch;color:var(--muted);margin:0;font-size:.95rem}.landing-cta-band__actions{flex-direction:column;gap:.65rem;min-width:220px;display:flex}.landing-preview-wrap{transform-origin:100%;position:relative;transform:scale(1.02)}.landing-preview__badge{z-index:2;border:1px solid var(--border);font-family:var(--mono);color:var(--text);background:#fff;border-radius:999px;align-items:center;gap:.4rem;padding:.35rem .65rem;font-size:.72rem;font-weight:600;display:inline-flex;position:absolute;top:-.75rem;right:1rem;box-shadow:0 8px 20px #1a1a1814}.landing-preview__badge-dot{background:var(--text);border-radius:50%;width:7px;height:7px;animation:2s ease-in-out infinite pulse-dot}@keyframes pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.55;transform:scale(.85)}}.landing-preview{border:1px solid var(--border);background:var(--surface);border-radius:12px;overflow:hidden;box-shadow:0 2px 8px #1a1a180a,0 24px 56px #1a1a1814}.landing-preview__chrome{border-bottom:1px solid var(--border);background:var(--surface-2);align-items:center;gap:.4rem;padding:.65rem .85rem;display:flex}.landing-preview__dot{background:var(--border);border-radius:50%;width:8px;height:8px}.landing-preview__title{font-family:var(--mono);color:var(--muted);flex:1;margin-left:.35rem;font-size:.75rem}.landing-preview__live{font-family:var(--mono);color:var(--text);background:var(--surface-2);border-radius:4px;padding:.15rem .4rem;font-size:.65rem;font-weight:600}.landing-preview__repo{font-family:var(--mono);color:var(--muted);margin:.65rem 0 0;font-size:.68rem}.landing-preview__body{grid-template-columns:1.4fr 1fr;gap:.75rem;padding:.85rem;display:grid}.landing-preview__card{border:1px solid var(--border);background:var(--surface);border-radius:8px;padding:.85rem}.landing-preview__card h3{margin:.35rem 0 .5rem;font-size:.95rem;line-height:1.25}.landing-preview__muted{color:var(--muted);margin:0;font-size:.8rem;line-height:1.4}.landing-preview__cta{background:var(--accent);color:#fff;border-radius:6px;margin-top:.75rem;padding:.4rem .65rem;font-size:.75rem;font-weight:600;display:inline-block}.landing-preview__stats{grid-template-columns:repeat(3,1fr);gap:.35rem;margin:.5rem 0 .75rem;font-size:.7rem;display:grid}.landing-preview__stats span{color:var(--muted);display:block}.landing-preview__stats strong{font-family:var(--mono);font-size:1rem}.landing-preview__stats strong.ok{color:var(--git-on-border)}.landing-preview__heatmap{gap:3px;display:flex}.landing-preview__heatmap span{border:1px solid var(--border);background:var(--surface-2);border-radius:3px;width:16px;height:16px}.landing-preview__heatmap span.on{background:var(--git-on);border-color:var(--git-on-border)}.landing-preview__heatmap span.miss{border-color:var(--danger);background:#f5d0d0}.landing-preview__heatmap span.today{outline:1px solid var(--git-on-border);outline-offset:1px}.landing-features{grid-template-columns:repeat(3,1fr);gap:1rem;display:grid}.landing-feature{padding-top:2.25rem;position:relative}.landing-feature__num{background:var(--surface-2);width:1.5rem;height:1.5rem;color:var(--text);font-family:var(--mono);border-radius:6px;justify-content:center;align-items:center;font-size:.75rem;font-weight:600;display:inline-flex;position:absolute;top:1rem;left:1.25rem}.landing-feature h3{margin:0 0 .5rem}.landing-feature p{color:var(--muted);margin:0}@media (max-width:900px){.landing-trust__inner{grid-template-columns:repeat(2,1fr)}.landing-trust__item:nth-child(2){border-right:none}.landing-preview__body{grid-template-columns:1fr}.landing-problem__layout{grid-template-columns:1fr;gap:1.5rem}.landing-hero__inner{grid-template-columns:1fr}.landing-preview-wrap{order:-1;transform:none}.landing-loop{flex-direction:column}.landing-loop__segment{border-right:none;border-bottom:1px solid var(--border);flex-direction:column;width:100%}.landing-loop__segment:last-child{border-bottom:none}.landing-header__nav--anchor{display:none}.landing-loop__arrow{padding:.25rem 0;transform:rotate(90deg)}.landing-loop__step{border-bottom:1px solid var(--border);width:100%}.landing-loop__segment:last-child .landing-loop__step{border-bottom:none}.landing-outcomes__bento{grid-template-columns:1fr}.landing-outcome--featured{grid-row:auto}.landing-compare__split,.landing-features{grid-template-columns:1fr}.landing-cta-band__inner{flex-direction:column;align-items:flex-start}.public-header__actions .landing-header__nav{display:none}.landing-footer__inner{grid-template-columns:1fr}.landing-footer__nav{justify-content:flex-start}.landing-hero__inner{padding:2.5rem 0 3rem}.landing-band{padding:3rem 0}.landing-cta-band__actions,.landing-cta-band__actions .btn,.landing-hero__actions .btn{width:100%}.app-header{flex-wrap:wrap;align-items:flex-start}.app-header__menu-btn{align-items:center;display:inline-flex}.app-header__nav{border-top:1px solid var(--border);flex-direction:column;order:3;gap:.35rem;width:100%;padding:.5rem 0 .25rem;display:none}.app-header__nav.is-open{display:flex}.app-header__nav a{padding:.45rem 0}.app-header__user{margin-left:auto}.repo-form__grid{grid-template-columns:1fr}.settings-row{grid-template-columns:1fr;align-items:start;gap:.25rem}.settings-row__action{justify-self:start}.stage-row{flex-wrap:wrap;gap:.35rem .75rem}.stage-row .pill{margin-left:0}.stat-grid{gap:.5rem}.tabs{-webkit-overflow-scrolling:touch;overflow-x:auto}.tab{flex-shrink:0}}@media (max-width:480px){.landing-trust__inner{grid-template-columns:1fr}.landing-trust__item{border-right:none;border-bottom:1px solid var(--border);padding-bottom:.75rem}.landing-trust__item:last-child{border-bottom:none}.app-header__username{display:none}.public-header__actions{gap:.5rem}.landing-header__cta{padding:.45rem .7rem;font-size:.8rem}}.mentor-dashboard{flex-direction:column;gap:.75rem;display:flex}.mentor-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:end;gap:.75rem 1rem;display:flex}.mentor-search{flex-direction:column;flex:16rem;gap:.35rem;max-width:28rem;display:flex}.mentor-search input{border:1px solid var(--border);background:var(--surface);font:inherit;border-radius:6px;padding:.6rem .75rem}.mentor-toolbar__meta{color:var(--muted);margin:0;font-size:.9rem}.mentor-table{border-collapse:collapse;width:100%;font-size:.95rem}.mentor-table th,.mentor-table td{text-align:left;border-bottom:1px solid var(--border);vertical-align:top;padding:.75rem .5rem}.mentor-table th{letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-size:.7rem;font-weight:600}.mentor-table__student{align-items:center;gap:.5rem;display:flex}.mentor-table__avatar{border-radius:50%;width:28px;height:28px}.mentor-row--alert{background:color-mix(in srgb, var(--danger) 8%, transparent)}.mentor-badge{color:var(--muted);font-size:.8rem;font-weight:600;display:inline-block}.mentor-badge--alert{color:var(--danger)}