/* 줄눈 색상 선택기 (2026-10-24) — 홈페이지 토큰만 씀. PC = 왼쪽 미리보기 · 비교 / 오른쪽 고르기, 휴대폰 = 미리보기 → 고른 조합 → 고르기 → 13색 비교 */
.grhd { padding: 28px var(--z-gutter) 14px; max-width: 1760px; margin: 0 auto; }
.grhd h1 { font: 900 clamp(30px, 3.4vw, 48px)/1.1 var(--z-display-ko); margin: 6px 0 4px; }
.grhd p { margin: 0; color: #555; font-size: 15px; max-width: 760px; }

.gr { max-width: 1760px; margin: 0 auto 24px; padding: 0 var(--z-gutter); display: grid; grid-template-columns: minmax(0, 1fr) 420px; grid-template-areas: "view panel" "act panel" "cmp panel"; gap: 14px 24px; align-items: start; }
.gr.loading { opacity: .55; pointer-events: none; }
.gr-view { grid-area: view; position: relative; border-radius: 14px; overflow: hidden; background: var(--z-soft); aspect-ratio: 14 / 9; }
.gr-view canvas { display: block; width: 100%; height: 100%; }
.gr-tag { position: absolute; left: 12px; bottom: 10px; padding: 4px 8px; border-radius: 6px; background: rgba(0,0,0,.5); color: #fff; font-size: 11px; letter-spacing: .06em; }

.gr-act { grid-area: act; border: 1.5px solid var(--z-line); border-radius: 14px; padding: 14px 16px; display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center; justify-content: space-between; }
.gr-sel { display: flex; flex-wrap: wrap; gap: 6px 22px; font: 700 15px/1.4 var(--z-body); }
.gr-sel small { display: block; font: 700 12px/1.3 var(--z-body); color: var(--z-red); }
.gr-sel em { font-style: normal; font-weight: 500; color: var(--z-mute); }
.gr-sel em.rec { color: #fff; background: var(--z-ink); border-radius: var(--z-r-pill); padding: 1px 8px; font-size: 12px; }
.gr-sel i, .gr-fg i, .gr-cc b i, .gr-pal i { display: inline-block; width: 14px; height: 14px; border-radius: 50%; margin-right: 6px; vertical-align: -2px; box-shadow: inset 0 0 0 1px rgba(0,0,0,.2); }
.gr-btns { display: flex; flex-wrap: wrap; gap: 8px; }

.gr-panel { grid-area: panel; max-height: calc(100vh - 88px); overflow: auto; border: 1.5px solid var(--z-line); border-radius: 14px; padding: 16px; background: #fff; }
.gr-step + .gr-step { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--z-line); }
.gr-step h3 { font: 800 16px/1.3 var(--z-body); margin: 0 0 10px; }
.gr-step h3 em { font-style: normal; display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: var(--z-ink); color: #fff; font-size: 12px; margin-right: 8px; vertical-align: 1px; }
.gr-step h3 small { font-weight: 600; color: var(--z-mute); font-size: 12px; margin-left: 6px; }
.gr-step h4 { font: 700 13px/1.3 var(--z-body); margin: 14px 0 8px; color: #444; }
.gr-fg { display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); gap: 6px; }
.gr-fg button, .gr-chips button, .gr-pal button { border: 1.5px solid var(--z-line); background: #fff; border-radius: var(--z-r-pill); padding: 9px 12px; font: 700 13px/1 var(--z-body); cursor: pointer; color: var(--z-ink); text-align: left; min-height: 40px; }
.gr-fg button[aria-pressed="true"], .gr-chips button[aria-pressed="true"], .gr-pal button[aria-pressed="true"] { border-color: var(--z-ink); box-shadow: inset 0 0 0 1.5px var(--z-ink); }
.gr-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.gr-chips small { color: var(--z-mute); font-weight: 500; }
.gr-tabs { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1.5px solid var(--z-line); margin-bottom: 12px; }
.gr-tabs button { border: 0; background: none; padding: 10px 4px; font: 800 14px/1 var(--z-body); color: var(--z-mute); cursor: pointer; border-bottom: 2.5px solid transparent; margin-bottom: -1.5px; }
.gr-tabs button[aria-selected="true"] { color: var(--z-ink); border-bottom-color: var(--z-red); }
.gr-q { width: 100%; box-sizing: border-box; border: 1.5px solid var(--z-line); border-radius: 12px; padding: 11px 14px; font: 500 15px/1.2 var(--z-body); margin-bottom: 8px; }
.gr-tiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-top: 10px; }
.gr-card { border: 1.5px solid var(--z-line); background: #fff; border-radius: 12px; padding: 0 0 8px; cursor: pointer; text-align: left; overflow: hidden; color: var(--z-ink); }
.gr-card img { display: block; width: 100%; aspect-ratio: 1; object-fit: cover; }
.gr-card b { display: block; font: 800 12.5px/1.25 var(--z-body); margin: 6px 7px 0; }
.gr-card span { display: block; font-size: 11.5px; color: var(--z-mute); margin: 1px 7px 0; }
.gr-card.on { border-color: var(--z-red); box-shadow: inset 0 0 0 1.5px var(--z-red); }
.gr-pal { display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); gap: 6px; }
.gr-own { display: flex; align-items: center; gap: 8px; border: 1.5px dashed var(--z-line); border-radius: var(--z-r-pill); padding: 4px 12px 4px 6px; font: 700 13px/1 var(--z-body); cursor: pointer; min-height: 40px; }
.gr-own input { width: 30px; height: 30px; border: 0; padding: 0; background: none; cursor: pointer; }
.gr-empty { font-size: 14px; color: var(--z-mute); }

.gr-cmp { grid-area: cmp; }
.gr-cmph { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 14px; margin: 10px 0 10px; }
.gr-cmph h2 { font: 900 26px/1.1 var(--z-display-ko); margin: 0; }
.gr-cmph p { margin: 0; color: var(--z-mute); font-size: 14px; }
.gr-cmpg { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 10px; }
.gr-cc { border: 1.5px solid var(--z-line); background: #fff; border-radius: 12px; padding: 0 0 9px; cursor: pointer; overflow: hidden; text-align: left; color: var(--z-ink); }
.gr-cc canvas { display: block; width: 100%; height: auto; }
.gr-cc b { display: block; font: 800 14px/1.3 var(--z-body); margin: 8px 10px 0; }
.gr-cc em { display: block; font-style: normal; font: 700 11.5px/1.3 var(--z-body); color: var(--z-red); margin: 3px 10px 0; }
.gr-cc[aria-pressed="true"] { border-color: var(--z-ink); box-shadow: inset 0 0 0 1.5px var(--z-ink); }
.gr-faq { max-width: 1760px; margin: 28px auto 20px; padding: 0 var(--z-gutter); }
.gr-faq h2 { font: 900 26px/1.2 var(--z-display-ko); margin: 0 0 10px; }
.gr-faq details { border-top: 1px solid var(--z-line); padding: 14px 0; }
.gr-faq details:last-child { border-bottom: 1px solid var(--z-line); }
.gr-faq summary { font: 800 16px/1.4 var(--z-body); cursor: pointer; }
.gr-faq p { margin: 10px 0 0; color: #444; font-size: 15px; line-height: 1.7; max-width: 900px; }
@media (max-width: 900px) { .gr-faq { padding: 0 16px; } .gr-faq summary { font-size: 17px; } .gr-faq p { font-size: 16px; } }
.gr-note { max-width: 1760px; margin: 0 auto 64px; padding: 0 var(--z-gutter); font-size: 13px; color: var(--z-mute); }
.gr-note a { color: inherit; }
.gr-toast { position: fixed; left: 50%; bottom: 90px; transform: translate(-50%, 20px); background: #111; color: #fff; padding: 12px 18px; border-radius: 12px; font-size: 14px; opacity: 0; transition: .3s; z-index: 90; pointer-events: none; }
.gr-toast.on { opacity: 1; transform: translate(-50%, 0); }

/* 휴대폰: 세로 한 줄 · 큰 글자 · 누르는 곳 48px */
@media (max-width: 900px) {
  .gr { grid-template-columns: minmax(0, 1fr); grid-template-areas: "view" "act" "panel" "cmp"; padding: 0 16px; }
  .gr-panel { position: static; max-height: none; }
  .gr-sel { font-size: 16px; }
  .gr-btns .z-btn { flex: 1 1 100%; justify-content: center; min-height: 48px; }
  .gr-fg button, .gr-chips button, .gr-pal button, .gr-own { min-height: 48px; font-size: 15px; }
  .gr-fg, .gr-pal { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .gr-tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); max-height: 70vh; overflow: auto; }
  .gr-cmpg { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grhd { padding: 20px 16px 10px; }
  .gr-note { padding: 0 16px; }
}