.pf-game { --pf-violet: #7952d4; --pf-lime: #c7ef78; max-width: 1240px; margin: 0 auto; }
.pf-game .pf-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 24px; }
.pf-game h1 { margin: 10px 0 12px; font-family: var(--font-display, sans-serif); font-size: clamp(2.3rem, 4.6vw, 3.75rem); line-height: 1; letter-spacing: -.065em; }
.pf-game h1 em { color: var(--pf-violet); font-style: normal; }
.pf-game .pf-intro { max-width: 550px; color: var(--muted, #686661); font-size: 1.08rem; line-height: 1.6; margin: 0; }
.pf-game .pf-category { font-size: .65rem; font-weight: 800; letter-spacing: .11em; white-space: nowrap; border-bottom: 1px solid var(--ink, #25241f); padding-bottom: 10px; }
.pf-game .pf-category span { font-size: 1.3rem; margin-left: 12px; }
.pf-game .pf-layout { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(270px, 1fr); gap: 24px; align-items: start; }
.pf-game .pf-play { padding: clamp(15px, 2.5vw, 28px); }
.pf-game .panel { background: var(--surface, #fffdf8); border: 1px solid var(--line, #dedbd0); border-radius: var(--radius, 16px); }
.pf-game .pf-toolbar { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; margin-bottom: 18px; }
.pf-game .pf-modes { display: flex; padding: 4px; border-radius: 9px; background: var(--bg, #f3f1e9); }
.pf-game .pf-modes button { border: 0; padding: 9px 12px; background: transparent; border-radius: 6px; color: var(--muted, #686661); font: inherit; font-size: .8rem; font-weight: 700; cursor: pointer; }
.pf-game .pf-modes button[aria-pressed="true"] { color: var(--ink, #25241f); background: var(--surface, white); box-shadow: 0 1px 4px #23211c12; }
.pf-game .pf-difficulty { display: flex; align-items: center; gap: 7px; font-size: .75rem; font-weight: 700; }
.pf-game .pf-map-settings { margin-left: auto; min-width: 0; font-size: .75rem; }
.pf-game .pf-map-settings > summary { cursor: pointer; font-weight: 700; padding: 9px 0 9px 8px; }
.pf-game .pf-map-settings[open] { flex-basis: 100%; }
.pf-game .pf-map-settings[open] > summary { padding-left: 0; }
.pf-game .pf-settings-body { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding: 14px; border: 1px solid var(--line, #dedbd0); border-radius: 8px; background: var(--bg, #f3f1e9); }
.pf-game .pf-settings-body .pf-difficulty { flex: 1 1 190px; justify-content: space-between; }
.pf-game .pf-style-description, .pf-game .pf-settings-note { flex-basis: 100%; margin: 0; font-size: .72rem; line-height: 1.45; color: var(--muted, #686661); }
.pf-game .pf-settings-body .button { font-size: .76rem; padding: 10px 14px; }
.pf-game .pf-change-confirm { margin-bottom: 16px; border: 1px solid #d2af96; border-radius: 8px; padding: 14px; background: #fff3e6; }
.pf-game .pf-change-confirm p { margin: 0 0 12px; font-size: .78rem; line-height: 1.5; }
.pf-game .pf-change-confirm > div { display: flex; flex-wrap: wrap; gap: 8px; }
.pf-game .pf-change-confirm .button { padding: 10px 13px; font-size: .74rem; }
.pf-game select { color: var(--ink, #25241f); font: inherit; font-weight: 600; padding: 9px 26px 9px 10px; background-color: var(--surface, #fffdf8); border: 1px solid var(--line, #dedbd0); border-radius: 6px; min-height: 40px; max-width: 100%; }
.pf-game .pf-map-meta { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 5px 10px; font-size: .58rem; font-weight: 700; letter-spacing: .08em; color: var(--muted, #686661); margin-bottom: 12px; }
.pf-game .pf-board { display: grid; grid-template-columns: repeat(var(--pf-size), minmax(0, 1fr)); width: min(100%, 52vh, 500px); margin-inline: auto; gap: clamp(2px, .4vw, 4px); padding: 8px; border: 1px solid var(--line, #dedbd0); background: var(--bg, #f3f1e9); border-radius: 10px; touch-action: none; user-select: none; }
.pf-game .pf-route-bar { display: none; align-items: center; gap: 18px; margin-top: 16px; }
.pf-game .pf-route-bar > div { display: flex; flex-direction: column; gap: 3px; }
.pf-game .pf-route-bar > div > span { font-size: .62rem; color: var(--muted, #686661); }
.pf-game .pf-route-bar strong { font-size: 1.4rem; line-height: 1; }
.pf-game .pf-route-bar .button { margin-left: auto; padding: 12px; font-size: .75rem; }
.pf-game .pf-inline-result { margin: 15px 0 0; padding: 12px; border: 1px solid #bdcf9f; border-radius: 7px; background: #f0f7e3; font-size: .8rem; line-height: 1.4; }
.pf-game .pf-row { display: contents; }
.pf-game .pf-cell { position: relative; display: grid; place-items: center; min-width: 0; min-height: 0; width: 100%; padding: 0; aspect-ratio: 1; border: 1px solid #dcd9ce; border-radius: 4px; background: var(--surface, #fffdf8); color: var(--ink, #25241f); font: inherit; font-size: clamp(.58rem, 1.8vw, 1rem); font-weight: 800; cursor: pointer; transition: background-color .12s, box-shadow .12s; }
.pf-game .pf-wall { background: #32342f; border-color: #32342f; cursor: not-allowed; }
.pf-game .pf-searched:not(.pf-wall) { background: #e5ddf6; }
.pf-game .pf-route:not(.pf-wall) { background: var(--pf-violet); border-color: var(--pf-violet); color: white; }
.pf-game .pf-route:not(.pf-start):not(.pf-goal)::after { content: ''; width: 16%; height: 16%; border-radius: 50%; background: #fff9; }
.pf-game .pf-head:not(.pf-start):not(.pf-goal)::after { width: 28%; height: 28%; background: white; }
.pf-game .pf-goal { background: var(--pf-lime); border-color: #a9ce5f; color: #2c351b; }
.pf-game .pf-start { border-radius: 50%; }
.pf-game .pf-optimal { box-shadow: inset 0 0 0 3px #8ebd40; }
.pf-game .pf-cell:focus-visible { outline: 3px solid #ed7d42; outline-offset: 2px; z-index: 1; }
.pf-game .pf-board:focus-within { outline: 2px solid var(--pf-violet); outline-offset: 4px; }
.pf-game .pf-legend { display: flex; gap: 10px 15px; flex-wrap: wrap; margin-top: 17px; font-size: .68rem; color: var(--muted, #686661); }
.pf-game .pf-legend > span { display: flex; align-items: center; gap: 6px; }
.pf-game .pf-key { display: inline-grid; place-items: center; width: 14px; height: 14px; border-radius: 3px; font-size: .55rem; font-style: normal; font-weight: 800; }
.pf-game .pf-key-start, .pf-game .pf-key-route { background: var(--pf-violet); color: white; }
.pf-game .pf-key-start { border-radius: 50%; }
.pf-game .pf-key-goal { background: var(--pf-lime); color: #2c351b; }
.pf-game .pf-key-wall { background: #32342f; }
.pf-game .pf-key-optimal { border: 3px solid #8ebd40; }
.pf-game .pf-instructions { font-size: .76rem; color: var(--muted, #686661); line-height: 1.6; margin: 18px 0; }
.pf-game .pf-touch-controls { display: none; align-items: center; justify-content: center; gap: 10px; margin-top: 20px; }
.pf-game .pf-touch-controls > span { color: var(--muted, #686661); font-size: .75rem; margin-right: 5px; }
.pf-game .pf-touch-controls button { width: 44px; height: 44px; border: 1px solid var(--line, #dedbd0); border-radius: 8px; background: var(--surface, #fffdf8); color: var(--ink, #25241f); font: inherit; font-size: 1.2rem; cursor: pointer; }
.pf-game .pf-touch-controls button:active { background: var(--pf-lime); }
.pf-game .pf-touch-controls button:disabled { opacity: .4; cursor: not-allowed; }
.pf-game .pf-board-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.pf-game .pf-board-actions .button { font-size: .8rem; padding: 10px 13px; }
.pf-game .pf-new { margin-left: auto; }
.pf-game .pf-sidebar { display: flex; flex-direction: column; gap: 16px; }
.pf-game .pf-mission, .pf-game .pf-result { padding: 26px; }
.pf-game .pf-mission h2, .pf-game .pf-result h2 { font-size: clamp(1.55rem, 2.5vw, 2rem); line-height: 1.12; letter-spacing: -.04em; margin: 13px 0; }
.pf-game .pf-mission-copy, .pf-game .pf-result > p { font-size: .85rem; color: var(--muted, #686661); line-height: 1.65; }
.pf-game .pf-scoreboard { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line, #dedbd0); border-bottom: 1px solid var(--line, #dedbd0); margin: 24px 0 17px; padding: 18px 0; }
.pf-game .pf-scoreboard > div { display: flex; flex-direction: column; gap: 6px; }
.pf-game .pf-scoreboard > div + div { padding-left: 22px; border-left: 1px solid var(--line, #dedbd0); }
.pf-game .pf-scoreboard span { font-size: .7rem; color: var(--muted, #686661); }
.pf-game .pf-scoreboard strong { font-size: 2.4rem; line-height: 1; letter-spacing: -.06em; }
.pf-game .pf-scoreboard > div:first-child strong { color: var(--pf-violet); }
.pf-game .pf-live { min-height: 2.8em; font-size: .8rem; line-height: 1.5; margin: 0 0 20px; }
.pf-game .pf-algorithm-label { display: flex; flex-direction: column; gap: 8px; font-size: .7rem; color: var(--muted, #686661); }
.pf-game .pf-algorithm-label select { font-size: .8rem; }
.pf-game .pf-compare { width: 100%; margin-top: 14px; justify-content: space-between; font-size: .85rem; }
.pf-game .pf-skip { width: 100%; margin-top: 8px; font-size: .8rem; }
.pf-game .button:disabled { opacity: .45; cursor: not-allowed; }
.pf-game .pf-result { background: #f0f7e3; border-color: #bdcf9f; }
.pf-game .pf-result-stat { display: flex; align-items: baseline; gap: 10px; margin: 18px 0 6px; }
.pf-game .pf-result-stat strong { font-size: 2.9rem; letter-spacing: -.06em; }
.pf-game .pf-result-stat span { font-size: .8rem; }
.pf-game .pf-result .pf-result-note { font-size: .7rem; }
.pf-game .pf-result .button { width: 100%; margin-top: 8px; font-size: .8rem; }
.pf-game .pf-how { padding: 19px 23px; }
.pf-game .pf-how summary { font-size: .79rem; font-weight: 700; cursor: pointer; line-height: 1.5; }
.pf-game .pf-how p { font-size: .78rem; line-height: 1.65; color: var(--muted, #686661); }
.pf-game .pf-footnote { text-align: center; font-size: .68rem; color: var(--muted, #686661); line-height: 1.5; margin: 2px 8px; }
.pf-game [hidden] { display: none !important; }
@media (max-width: 800px) { .pf-game .pf-layout { grid-template-columns: 1fr; } .pf-game .pf-category { display: none; } .pf-game .pf-heading { margin-bottom: 20px; } .pf-game .pf-sidebar { display: grid; grid-template-columns: 1fr 1fr; align-items: start; } .pf-game .pf-mission { grid-row: span 3; } .pf-game .pf-cell { font-size: 1rem; } .pf-game .pf-board { width: min(100%, 500px); } .pf-game .pf-route-bar { display: flex; } }
@media (max-width: 540px) { .pf-game .pf-sidebar { display: flex; } .pf-game .pf-toolbar { align-items: stretch; gap: 12px; } .pf-game .pf-difficulty { margin-left: auto; } .pf-game .pf-difficulty select { font-size: .7rem; } .pf-game .pf-modes button { padding: 9px; font-size: .73rem; } .pf-game .pf-map-meta { font-size: .5rem; } .pf-game .pf-board { padding: 5px; gap: 3px; } .pf-game .pf-cell { font-size: .67rem; border-radius: 3px; } .pf-game .pf-mission, .pf-game .pf-result { padding: 22px; } .pf-game .pf-optimal { box-shadow: inset 0 0 0 2px #8ebd40; } }
@media (prefers-reduced-motion: reduce) { .pf-game .pf-cell { transition: none; } }
@media (pointer: coarse), (max-width: 540px) { .pf-game .pf-touch-controls { display: flex; } }
@media (max-width: 540px) { .pf-game h1 { font-size: 2.3rem; margin-top: 8px; } .pf-game .pf-intro { font-size: .9rem; line-height: 1.5; } .pf-game .pf-toolbar { margin-bottom: 14px; } .pf-game .pf-legend { gap: 8px 12px; font-size: .62rem; } .pf-game .pf-touch-controls { margin-top: 15px; } .pf-game .pf-instructions { margin-block: 14px; font-size: .7rem; } }