/*
Theme Name: GeometrySpot
Theme URI: https://geometryspot.space/
Author: GeometrySpot
Description: Lightweight educational theme for geometry tools and guides.
Version: 1.0.0
License: GPL-2.0-or-later
Text Domain: geometryspot
*/
:root{--ink:#172334;--muted:#5f6b7a;--blue:#2463eb;--soft:#f5f7fa;--line:#e1e6ed;--max:1120px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);line-height:1.65;background:#fff}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}button,input,select{font:inherit}.site-header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:20}.nav{max-width:var(--max);margin:auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-weight:900;font-size:1.25rem;color:var(--ink)}.menu{display:flex;gap:18px;flex-wrap:wrap;font-size:.95rem}.wrap{max-width:var(--max);margin:auto;padding:0 20px}.hero{padding:58px 0 30px}.hero h1{font-size:clamp(2.2rem,6vw,4rem);line-height:1.05;letter-spacing:-.045em;max-width:850px;margin:0 0 18px}.hero p{font-size:1.12rem;color:var(--muted);max-width:760px}.eyebrow{color:var(--blue);font-size:.78rem;font-weight:900;letter-spacing:.12em;text-transform:uppercase}.section{padding:34px 0}.section h2{font-size:clamp(1.55rem,3vw,2.2rem);letter-spacing:-.02em}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{border:1px solid var(--line);border-radius:14px;padding:20px;background:#fff}.card h3{margin-top:0}.formula{background:var(--soft);border-left:4px solid var(--blue);padding:16px 18px;border-radius:8px;font-weight:750}.table-wrap{overflow:auto}.comparison{width:100%;border-collapse:collapse}.comparison th,.comparison td{border:1px solid var(--line);padding:12px;text-align:left}.comparison th{background:var(--soft)}.breadcrumbs{font-size:.9rem;color:var(--muted);padding-top:20px}.site-footer{margin-top:50px;background:#10233d;color:#d9e3ef}.site-footer a{color:#fff}.footer-inner{max-width:var(--max);margin:auto;padding:35px 20px;display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}.copyright{border-top:1px solid rgba(255,255,255,.15);padding:18px 20px;text-align:center;font-size:.9rem}.article{max-width:820px}.article h2{margin-top:2.2em}.article h3{margin-top:1.7em}.notice{background:#eef5ff;border:1px solid #cfe0ff;padding:14px 16px;border-radius:10px}.quiz{border:1px solid var(--line);border-radius:14px;padding:20px;margin:18px 0}.quiz button{border:0;border-radius:8px;background:var(--blue);color:#fff;padding:9px 13px;margin:5px;cursor:pointer}.quiz .answer{margin-top:12px;font-weight:650}.skip{position:absolute;left:-9999px}.skip:focus{left:10px;top:10px;background:#fff;padding:10px;z-index:100}@media(max-width:760px){.menu{display:none}.cards{grid-template-columns:1fr}.footer-inner{grid-template-columns:1fr}.hero{padding-top:38px}}