:root{--ink:#112033;--muted:#53657a;--paper:#f2fbff;--panel:#fff;--line:#112033;--water:#35c7e8;--deep:#1368c9;--coral:#ff6f61;--kelp:#45c772;--sand:#ffe58a;--violet:#8b5cf6;--shadow:7px 7px 0 #112033}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:linear-gradient(90deg,rgba(17,32,51,.05) 1px,transparent 0),linear-gradient(rgba(17,32,51,.05) 1px,transparent 0),radial-gradient(circle at 8% 10%,rgba(53,199,232,.2),transparent 22rem),linear-gradient(180deg,#f8fdff,#e5f7ff 52%,#fff8de);background-size:34px 34px,34px 34px,auto,auto;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;letter-spacing:0}a{color:inherit;text-decoration:none}button{font:inherit}.topbar{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;gap:20px;padding:14px clamp(16px,4vw,44px);background:rgba(242,251,255,.92);border-bottom:3px solid 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button{min-width:80px;text-transform:capitalize}.planner-output{position:relative;overflow:hidden;padding:24px;background:linear-gradient(180deg,#fff,#e2fff1)}.hook-line{position:absolute;top:-12px;right:28px;width:70px;height:92px;border-right:5px solid var(--line);border-bottom:5px solid var(--line);border-radius:0 0 36px 0;opacity:.2}.planner-output ol,.steps{margin:16px 0 0;padding-left:24px;font-weight:750;line-height:1.55}.section{padding:42px 0}.section-head{margin-bottom:18px}.section-head p{max-width:820px;color:var(--muted);font-weight:700}.content-grid,.guide-grid,.split{display:grid;gap:18px}.content-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.guide-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.split{grid-template-columns:minmax(0,.95fr) 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