:root{--field-bg:#FFFFFF;--field-border:#B9B09E;--hair:#ECE6DA;--err-bg:#FBEFEC;--err-fg:#8A2F22;--del-border:#D9B8B1;--code-muted:#A9A499;--on-acc:#FFFFFF;--copy-bg:#F4F1EA;--copy-fg:#1C2024;color-scheme:light;--ink:#1C2024;--muted:#555B63;--bg:#F4F1EA;--surf:#FFFFFF;--line:#DAD3C4;--acc:#0E5B57;--acc-d:#083F3C;--acc-s:#E2EDEA;--code-bg:#1E2226;--code-fg:#ECE8DF;--exc:#9A3B2E}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'IBM Plex Sans',system-ui,sans-serif;line-height:1.5}
a{color:var(--acc)}a:hover{color:var(--acc-d)}
input,select,button{font:inherit}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.serif{font-family:Fraunces,Georgia,serif}
header.top{border-bottom:1px solid var(--line)}
.nav{max-width:1200px;margin:0 auto;padding:14px 40px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.brand{display:flex;align-items:baseline;gap:8px;text-decoration:none;color:var(--ink)}
.brand b{font-family:Fraunces,Georgia,serif;font-size:22px;font-weight:600}.brand span{font-size:13px;color:var(--muted)}
.links{display:flex;gap:4px;flex-wrap:wrap}
.links a{padding:10px 14px;border-radius:8px;color:var(--ink);text-decoration:none;font-size:14px;font-weight:500;white-space:nowrap}
.links a:hover{background:var(--acc-s)}
.links a[aria-current=page]{background:var(--acc);color:var(--on-acc)}
main{max-width:1200px;margin:0 auto;padding:48px 40px 72px;display:flex;flex-direction:column;gap:36px}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--acc)}
.head{display:flex;flex-direction:column;gap:12px;max-width:760px}
h1{margin:0;font-family:Fraunces,Georgia,serif;font-size:44px;line-height:1.1;font-weight:600}
.lede{margin:0;font-size:17px;line-height:1.6;color:var(--muted)}
.cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;align-items:start}
.stack{display:flex;flex-direction:column;gap:24px}
.card{background:var(--surf);border:1px solid var(--line);border-radius:14px;padding:24px;display:flex;flex-direction:column;gap:16px}
h2{margin:0;font-family:Fraunces,Georgia,serif;font-size:22px;font-weight:600}
.row-between{display:flex;align-items:center;justify-content:space-between;gap:12px}
.hint{margin:0;font-size:13px;line-height:1.5;color:var(--muted)}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13px;font-weight:600}
.field input,.field select{width:100%;min-height:44px;padding:10px 12px;border:1px solid var(--field-border);border-radius:8px;background:var(--field-bg);color:var(--ink);font-size:15px}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
fieldset{margin:0;padding:18px;border:1px solid var(--hair);border-radius:10px;display:flex;flex-direction:column;gap:12px}
legend{padding:0 6px;font-family:Fraunces,Georgia,serif;font-size:17px;font-weight:600}
.sub{font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--acc)}.sub.exc{color:var(--exc)}
.btn{min-height:44px;padding:8px 14px;border:1px solid var(--line);border-radius:8px;background:var(--field-bg);color:var(--ink);font-size:14px;cursor:pointer}
.btn.acc{border-color:var(--acc);color:var(--acc);font-weight:600}
ol.steps{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:12px;counter-reset:s}
ol.steps li{display:flex;gap:14px;align-items:flex-start;font-size:15px;line-height:1.55;counter-increment:s}
ol.steps li::before{content:counter(s);flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--acc-s);color:var(--acc-d);font-size:13px;font-weight:600;display:flex;align-items:center;justify-content:center;margin-top:-2px}
.list-row{display:flex;gap:12px;align-items:baseline;padding:10px 0;border-top:1px solid var(--hair);font-size:15px}
.list-row code{font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--acc)}
.gap-row{display:flex;flex-direction:column;gap:2px;padding:10px 0;border-top:1px solid var(--hair)}
.gap-row b{font-size:15px}.gap-row span{font-size:14px;line-height:1.5;color:var(--muted)}
.output{background:var(--code-bg);border-radius:14px;padding:24px;display:flex;flex-direction:column;gap:16px;position:sticky;top:16px}
.output .t{font-size:14px;font-weight:600;color:var(--code-fg)}.output .s{font-size:12px;color:var(--code-muted)}
.output .note{margin:0;font-size:13px;line-height:1.5;color:var(--code-muted)}
.copy{min-height:48px;padding:12px 20px;border:none;border-radius:8px;background:var(--copy-bg);color:var(--copy-fg);font-size:14px;font-weight:600;cursor:pointer}
.next{display:flex;justify-content:flex-end}
.next a{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:10px 18px;border-radius:8px;border:1px solid var(--acc);color:var(--acc);text-decoration:none;font-size:15px;font-weight:600}
.hero{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px;align-items:end;padding:24px 0 8px}
.hero h1{font-size:64px;line-height:1.02}.hero p{margin:0;font-size:19px;line-height:1.6;color:var(--muted)}
.tool{display:grid;grid-template-columns:72px minmax(0,1fr) auto;align-items:center;gap:24px;padding:24px 28px;background:var(--surf);border:1px solid var(--line);border-radius:14px;text-decoration:none;color:var(--ink);transition:border-color .15s}
.tool:hover{border-color:var(--acc);color:var(--ink)}
.tool .n{font-family:Fraunces,Georgia,serif;font-size:48px;font-weight:500;line-height:1;color:var(--acc)}
.tool .tt{font-family:Fraunces,Georgia,serif;font-size:24px;font-weight:600;display:block}
.tool .d{font-size:15px;line-height:1.55;color:var(--muted);display:block;margin-top:6px}
.tool .end{display:flex;align-items:center;gap:12px;color:var(--acc)}
.tag{font-size:12px;font-weight:600;padding:6px 10px;border-radius:999px;background:var(--acc-s);color:var(--acc-d);white-space:nowrap}
.count{font-family:'IBM Plex Sans',system-ui,sans-serif;font-size:15px;font-weight:500;color:var(--muted)}
.mxcol{display:flex;flex-direction:column;gap:8px;padding:12px;border:1px solid var(--hair);border-radius:10px}
.mxcol .top{display:flex;align-items:center;gap:10px}
.mxcol .num{flex-shrink:0;width:26px;font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--acc)}
.mxcol input{min-height:44px;padding:10px 12px;border:1px solid var(--field-border);border-radius:8px;background:var(--field-bg);color:var(--ink);font-size:14px;min-width:0}
.mxcol .nm{flex-grow:1;font-weight:600;font-size:15px}.mxcol .rl{width:100%}
.del{flex-shrink:0;width:44px;height:44px;display:flex;align-items:center;justify-content:center;border:1px solid var(--del-border);border-radius:8px;background:var(--field-bg);color:var(--exc);cursor:pointer}
.del:hover{background:var(--err-bg)}.del:disabled{opacity:.4;cursor:not-allowed}
.add{min-height:48px;display:flex;align-items:center;justify-content:center;gap:8px;padding:10px 16px;border:none;border-radius:8px;background:var(--acc);color:var(--on-acc);font-size:15px;font-weight:600;cursor:pointer}
.add:hover{background:var(--acc-d)}
footer{max-width:1200px;margin:0 auto;padding:0 40px 40px;font-size:13px;color:var(--muted)}
@media (max-width:860px){.cols,.hero{grid-template-columns:minmax(0,1fr)}.output{position:static}.nav,main,footer{padding-left:16px;padding-right:16px}.hero h1{font-size:44px}h1{font-size:34px}.tool{grid-template-columns:48px minmax(0,1fr)}.tool .end{display:none}.tool .n{font-size:36px}}

.login-wrap{min-height:100vh;display:grid;place-items:center;padding:32px 16px}
.login{width:100%;max-width:420px;display:flex;flex-direction:column;gap:28px}
.login .mark{display:flex;flex-direction:column;gap:6px;text-align:center}
.login .mark b{font-family:Fraunces,Georgia,serif;font-size:40px;font-weight:600;line-height:1.05}
.login .mark span{font-size:15px;color:var(--muted)}
.login form{background:var(--surf);border:1px solid var(--line);border-radius:14px;padding:28px;display:flex;flex-direction:column;gap:18px}
.login h1{font-size:26px}
.pwrow{position:relative}.pwrow input{padding-right:76px}
.pwrow button{position:absolute;right:4px;top:50%;transform:translateY(-50%);min-height:36px;padding:6px 12px;border:none;border-radius:6px;background:var(--acc-s);color:var(--acc-d);font-size:13px;font-weight:600;cursor:pointer}
.check{display:flex;align-items:center;gap:10px;font-size:14px;min-height:44px}
.check input{width:18px;height:18px;accent-color:var(--acc)}
.primary{min-height:48px;border:none;border-radius:8px;background:var(--acc);color:var(--on-acc);font-size:16px;font-weight:600;cursor:pointer}
.primary:hover{background:var(--acc-d)}.primary:disabled{opacity:.7;cursor:progress}
.error{margin:0;padding:10px 12px;border-radius:8px;background:var(--err-bg);color:var(--err-fg);font-size:14px}
.logout{min-height:40px;padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:transparent;color:var(--ink);font-size:14px;cursor:pointer}
.logout:hover{border-color:var(--acc);color:var(--acc)}
.who{font-size:13px;color:var(--muted)}
.quote{margin:0;display:flex;flex-direction:column;gap:8px;text-align:center;padding:0 8px}
.quote blockquote{margin:0;font-family:Fraunces,Georgia,serif;font-size:18px;line-height:1.5;font-style:italic;color:var(--ink)}
.quote figcaption{font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--acc)}

@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--ink:#E8E4DC;--muted:#A7ADB4;--bg:#15181B;--surf:#1F2327;--line:#343A40;--acc:#5CC0B5;--acc-d:#9FDCD4;--acc-s:#1D3A37;--code-bg:#0E1012;--code-fg:#ECE8DF;--exc:#EF9A8A;--field-bg:#181B1F;--field-border:#4A5058;--hair:#2C3136;--err-bg:#3A1F1B;--err-fg:#F2B8AD;--del-border:#6B3A33;--code-muted:#8E949B;--on-acc:#0B1F1D;--copy-bg:#E8E4DC;--copy-fg:#15181B;color-scheme:dark}}
:root[data-theme=dark]{--ink:#E8E4DC;--muted:#A7ADB4;--bg:#15181B;--surf:#1F2327;--line:#343A40;--acc:#5CC0B5;--acc-d:#9FDCD4;--acc-s:#1D3A37;--code-bg:#0E1012;--code-fg:#ECE8DF;--exc:#EF9A8A;--field-bg:#181B1F;--field-border:#4A5058;--hair:#2C3136;--err-bg:#3A1F1B;--err-fg:#F2B8AD;--del-border:#6B3A33;--code-muted:#8E949B;--on-acc:#0B1F1D;--copy-bg:#E8E4DC;--copy-fg:#15181B;color-scheme:dark}
.theme-toggle{flex-shrink:0;width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:8px;background:transparent;color:var(--ink);cursor:pointer}
.theme-toggle:hover{border-color:var(--acc);color:var(--acc)}
.theme-toggle .sun{display:none}
:root[data-theme=dark] .theme-toggle .sun{display:block}
:root[data-theme=dark] .theme-toggle .moon{display:none}
.theme-toggle.floating{position:fixed;top:16px;right:16px;z-index:10;background:var(--surf)}
.nav-actions{display:flex;align-items:center;gap:8px}