@import "https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Mono:wght@400;500&family=DM+Sans:wght@300;400;500&display=swap";*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--ink:#1a1814;--ink-mid:#4a4843;--ink-light:#8a8880;--paper:#f7f4ef;--paper-warm:#ede9e2;--paper-card:#fff;--accent:#c84b2f;--accent-soft:#f0e0da;--rule:#d8d4cd;--phase-1:#2d5a4e;--phase-2:#1e4a6e;--phase-3:#7a3b1e;--phase-4:#5a3472;--phase-5:#2d4a1e;--phase-6:#1a3a5a}body{background:var(--paper);color:var(--ink);font-family:DM Sans,sans-serif;font-size:15px;line-height:1.7}.header{background:var(--ink);color:var(--paper);padding:56px 48px 48px;position:relative;overflow:hidden}.header:before{content:"";background:var(--accent);opacity:.12;border-radius:50%;width:280px;height:280px;position:absolute;top:-60px;right:-60px}.header-label{letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:16px;font-family:DM Mono,monospace;font-size:11px}.header h1{color:var(--paper);max-width:640px;margin-bottom:20px;font-family:DM Serif Display,serif;font-size:clamp(32px,5vw,52px);font-weight:400;line-height:1.1}.header h1 em{color:#e8c8be;font-style:italic}.header-sub{color:#a09e98;max-width:520px;font-size:15px;line-height:1.6}.nav-strip{background:var(--paper-warm);border-bottom:1px solid var(--rule);scrollbar-width:none;z-index:1;gap:0;padding:0 48px;display:flex;position:sticky;top:0;overflow-x:auto}.nav-strip::-webkit-scrollbar{display:none}.nav-pill{letter-spacing:.06em;text-transform:uppercase;color:var(--ink-light);cursor:pointer;white-space:nowrap;border-bottom:2px solid #0000;padding:14px 20px;font-family:DM Mono,monospace;font-size:11px;text-decoration:none;transition:color .15s,border-color .15s;display:block}.nav-pill:hover{color:var(--ink);border-color:var(--rule)}.main{max-width:860px;margin:0 auto;padding:56px 48px}.section{margin-bottom:72px}.section-header{border-bottom:1px solid var(--rule);align-items:baseline;gap:16px;margin-bottom:32px;padding-bottom:16px;display:flex}.section-num{color:var(--accent);letter-spacing:.08em;flex-shrink:0;font-family:DM Mono,monospace;font-size:11px}.section-title{color:var(--ink);font-family:DM Serif Display,serif;font-size:26px;font-weight:400}.prose{color:var(--ink-mid);margin-bottom:24px;line-height:1.75}.prose strong{color:var(--ink);font-weight:500}.card-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin-bottom:24px;display:grid}.card{background:var(--paper-card);border:1px solid var(--rule);border-radius:8px;padding:20px 22px}.card-num{color:var(--ink-light);letter-spacing:.08em;margin-bottom:8px;font-family:DM Mono,monospace;font-size:10px}.card h3{color:var(--ink);margin-bottom:6px;font-size:13px;font-weight:500}.card p{color:var(--ink-mid);font-size:13px;line-height:1.55}.callout{background:var(--accent-soft);border-left:3px solid var(--accent);border-radius:0 6px 6px 0;margin:24px 0;padding:16px 20px}.callout-label{letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:6px;font-family:DM Mono,monospace;font-size:10px}.callout p{color:var(--ink);font-size:14px;line-height:1.6}.prompt-anatomy{background:var(--ink);border-radius:8px;margin:24px 0;padding:24px 28px}.prompt-anatomy-label{letter-spacing:.1em;text-transform:uppercase;color:var(--ink-light);margin-bottom:14px;font-family:DM Mono,monospace;font-size:10px}.prompt-parts{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:16px;display:flex}.prompt-part{border-radius:4px;padding:4px 12px;font-family:DM Mono,monospace;font-size:12px;font-weight:500}.pp-subj{color:#7ecfba;background:#2d5a4e}.pp-frame{color:#7ab8e0;background:#1e4a6e}.pp-light{color:#e8a07a;background:#7a3b1e}.pp-style{color:#c09ae8;background:#5a3472}.prompt-sep{color:#4a4843;font-family:DM Mono,monospace;font-size:14px}.prompt-example{color:#c8c4bc;background:#ffffff0a;border:1px solid #ffffff14;border-radius:6px;padding:12px 16px;font-family:DM Mono,monospace;font-size:13px;line-height:1.6}.prompt-example em{color:#e8c8be;font-style:normal}.param-table{border-collapse:collapse;width:100%;margin:20px 0;font-size:13px}.param-table th{text-align:left;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-light);border-bottom:1px solid var(--rule);padding:8px 12px;font-family:DM Mono,monospace;font-size:10px}.param-table td{border-bottom:1px solid var(--paper-warm);vertical-align:top;color:var(--ink-mid);padding:10px 12px}.param-table td:first-child{color:var(--ink);white-space:nowrap;font-family:DM Mono,monospace;font-size:12px}.workflow{counter-reset:step;margin:8px 0 24px}.workflow-step{gap:20px;margin-bottom:4px;display:flex;position:relative}.workflow-step:not(:last-child):after{content:"";background:var(--rule);width:1px;position:absolute;top:36px;bottom:-4px;left:15px}.step-dot{background:var(--paper-warm);border:1px solid var(--rule);width:32px;height:32px;color:var(--ink-light);counter-increment:step;content:counter(step);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;margin-top:2px;font-family:DM Mono,monospace;font-size:11px;display:flex}.step-body{padding-bottom:24px}.step-body h4{color:var(--ink);margin-bottom:4px;font-size:14px;font-weight:500}.step-body p{color:var(--ink-mid);font-size:13px;line-height:1.6}.phase-badge{letter-spacing:.08em;text-transform:uppercase;color:#fff;border-radius:100px;margin-bottom:12px;padding:3px 10px;font-family:DM Mono,monospace;font-size:10px;display:inline-block}.brief-panel{border:1px solid var(--rule);border-radius:8px;overflow:hidden}.brief-panel .brief-item{padding:18px 20px}.hint{color:var(--ink-light);font-weight:300}.inline-code{font-family:DM Mono,monospace;font-size:12px}.prose--top{margin-top:20px}.subsection-label{color:var(--ink);margin-bottom:8px;font-size:14px;font-weight:500}.subsection-label--lg{margin-bottom:12px}.callout--top{margin-top:24px}.callout--top-sm{margin-top:8px}.mistakes-panel{border:1px solid var(--rule);border-radius:8px;margin-bottom:28px;overflow:hidden}.mistake-row{border-bottom:1px solid var(--paper-warm);gap:16px;padding:14px 20px;font-size:13px;display:flex}.mistake-row:last-child{border-bottom:none}.mistake-mark{color:var(--accent);flex-shrink:0;padding-top:1px;font-family:DM Mono,monospace;font-size:11px}.mistake-text{color:var(--ink-mid)}.formula-block{background:var(--ink);border-radius:8px;padding:20px 24px}.formula-label{color:#8a8880;margin-bottom:10px;font-family:DM Mono,monospace;font-size:12px}.formula-text{color:#c8c4bc;font-family:DM Mono,monospace;font-size:13px;line-height:1.6}.formula-text--spaced{margin-bottom:20px}.brief-item{border-bottom:1px solid var(--paper-warm);gap:16px;padding:18px 0;display:flex}.brief-item:last-child{border-bottom:none}.brief-icon{background:var(--paper-warm);width:36px;height:36px;color:var(--ink-light);border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;font-family:DM Mono,monospace;font-size:11px;display:flex}.brief-content h4{color:var(--ink);margin-bottom:4px;font-size:14px;font-weight:500}.brief-content p{color:var(--ink-mid);font-size:13px;line-height:1.6}.tip-row{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin:20px 0;display:grid}.tip{background:var(--paper-warm);color:var(--ink-mid);border-radius:6px;padding:14px 16px;font-size:13px;line-height:1.55}.tip strong{color:var(--ink);margin-bottom:3px;font-size:13px;display:block}.footer{background:var(--paper-warm);border-top:1px solid var(--rule);flex-wrap:gap;justify-content:space-between;align-items:center;gap:12px;padding:32px 48px;display:flex}.footer-note{color:var(--ink-light);font-family:DM Mono,monospace;font-size:11px}@media (width<=600px){.header,.main,.footer{padding-left:24px;padding-right:24px}.nav-strip{padding:0 24px}.card-grid,.tip-row{grid-template-columns:1fr}}