/* =========================================================
   TRENDLI9 PRINTS — Gang Sheet Builder (gang-sheet.html)
   Builds on styles.css tokens/components.
   ========================================================= */

/* ---------- Hero ---------- */
.gs-hero { background: var(--paper); padding: clamp(48px, 7vw, 96px) 0 clamp(32px, 4vw, 48px); border-bottom: 1px solid var(--line); }
.gs-hero h1 { max-width: 14ch; }
.gs-hero__lead { max-width: 620px; }
.gs-steps { list-style: none; margin: 28px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; max-width: 720px; border-top: 1px solid var(--ink); }
.gs-steps li { display: flex; flex-direction: column; gap: 4px; padding: 14px 16px 0 0; font-weight: 600; font-size: .95rem; color: var(--muted); position: relative; transition: color .3s var(--ease); }
.gs-steps li::before { content: ""; position: absolute; top: -2px; left: 0; height: 3px; width: 0; background: var(--accent); transition: width .5s var(--ease); }
.gs-steps__n { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .14em; }
.gs-steps li.is-done, .gs-steps li.is-current { color: var(--ink); }
.gs-steps li.is-done::before { width: 100%; }
.gs-steps li.is-current::before { width: 40%; }
@media (max-width: 520px) { .gs-steps li { font-size: .82rem; padding-right: 8px; } }

/* ---------- Workspace ---------- */
.gs-section { padding-top: 32px; }
.gs-top { display: flex; justify-content: space-between; align-items: center; gap: 12px 20px; flex-wrap: wrap; margin-bottom: 20px; }
.gs-title { margin: 0; font-size: clamp(1.5rem, 3vw, 2.1rem); }
.gs-work { display: grid; grid-template-columns: minmax(0, 440px) minmax(0, 1fr); gap: 24px; align-items: start; }
@media (max-width: 960px) { .gs-work { grid-template-columns: minmax(0, 1fr); } }
.gs-controls { min-width: 0; }
.gs-controls .panel h2 svg { width: 18px; height: 18px; }
.gs-panel-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.gs-panel-head h2 { margin: 0; }
.gs-note { font-size: .82rem; color: var(--muted); margin: 8px 0 0; }
.gs-seg { flex-wrap: wrap; }
.gs-seg button:focus-visible { outline-offset: 0; }
.gs-seg--sm button { padding: 6px 12px; min-height: 36px; font-size: .82rem; }
.gs-label { display: block; font-weight: 800; font-size: .85rem; margin-bottom: 8px; }

/* Size guide */
.gs-guide { border: 1px dashed var(--line); border-radius: var(--r); padding: 10px 12px 12px; margin-bottom: 12px; background: var(--paper); }
.gs-guide .gs-note { margin: 0 0 8px; }
.gs-guide__chips { display: flex; flex-wrap: wrap; gap: 6px; }
.gs-guide__chips .chip { min-height: 36px; padding: 6px 12px; font-size: .8rem; font-weight: 600; }

/* Repeat panel */
.gs-repeat-n { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 14px; font-weight: 700; font-size: .9rem; flex-wrap: wrap; }
#gsRepeatPickWrap select { min-height: 44px; }

/* Design cards */
.gs-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.gs-empty-list { margin: 0; font-size: .9rem; color: var(--muted); }
.gs-list-title { font-size: .95rem; }
.gs-list-title .muted { font-weight: 600; }
.gs-issues { display: flex; flex-wrap: wrap; gap: 6px; margin: -2px 0 10px; }
.gs-issues:not(:has(.gs-chip:not([hidden]))) { display: none; }
.gs-chip[hidden] { display: none; }
.gs-chip { min-height: 34px; padding: 4px 12px; font-size: .8rem; font-weight: 700; }
.gs-chip--bad { color: var(--danger); border-color: #F6C6C1; background: #FFF0EF; }
.gs-chip--review { color: #8A4B00; border-color: #F3D9A0; background: #FFF6E0; }
.gs-card { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 12px; padding: 12px; border: 1.5px solid var(--line); border-radius: var(--r); background: #fff; transition: border-color .2s, box-shadow .2s; scroll-margin: calc(var(--header-h) + 16px); }
.gs-card.is-active { border-color: var(--ink); }
.gs-card.is-review { border-color: #F3D9A0; }
.gs-card.is-bad { border-color: var(--danger); background: #FFF8F7; }
.gs-card.is-flash { animation: gsFlash 1s var(--ease); }
@keyframes gsFlash { 0%, 60% { box-shadow: 0 0 0 4px rgba(229,0,126,.25); } 100% { box-shadow: none; } }
.gs-list[data-mode="repeat"] .gs-card:not(.is-repeat), .gs-list[data-mode="repeat"] .gs-card__copies { display: none; }
.gs-card__thumb { position: relative; width: 96px; height: 96px; border-radius: var(--r-sm); display: grid; place-items: center;
  background: repeating-conic-gradient(#E4E1DA 0% 25%, #fff 0% 50%) 0 0 / 12px 12px; }
.gs-card__thumb canvas { width: 88px; height: 88px; }
.gs-card__x { position: absolute; top: -6px; right: -6px; min-width: 28px; height: 24px; padding: 0 7px; border-radius: 999px; background: var(--ink); color: #fff; font-size: .74rem; font-weight: 800; display: grid; place-items: center; }
.gs-card__x[hidden] { display: none; }
.gs-card__body { min-width: 0; display: grid; gap: 8px; align-content: start; }
.gs-card__head { display: flex; align-items: center; gap: 6px; min-width: 0; flex-wrap: wrap; }
.gs-card__name { font-weight: 700; font-size: .9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; flex: 1 1 100%; }
.gs-dpi { margin-right: auto; font-size: .72rem; font-weight: 800; padding: 3px 8px; border-radius: 999px; white-space: nowrap; }
.gs-dpi--ok { background: #E7F9EF; color: var(--wa-dark); }
.gs-dpi--review { background: #FFF6E0; color: #8A4B00; }
.gs-dpi--bad { background: #FFF0EF; color: var(--danger); }
.gs-icon-btn { min-width: 36px; height: 36px; border-radius: 999px; border: 1.5px solid var(--line); background: #fff; display: inline-grid; place-items: center; color: var(--ink); cursor: pointer; list-style: none; }
.gs-icon-btn::-webkit-details-marker { display: none; }
.gs-icon-btn--txt { padding: 0 12px; font-size: .8rem; font-weight: 700; }
.gs-icon-btn:hover { border-color: var(--ink); }
.gs-icon-btn.rm:hover { border-color: var(--danger); color: var(--danger); }
.gs-icon-btn svg { width: 16px; height: 16px; }
.gs-menu { position: relative; }
.gs-menu__list { position: absolute; right: 0; top: calc(100% + 6px); z-index: 20; min-width: 230px; background: #fff; border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--sh-2); padding: 6px; display: grid; }
.gs-menu__list button, .gs-menu__list a { text-align: left; border: 0; background: none; padding: 10px 12px; border-radius: var(--r-sm); font-size: .88rem; font-weight: 600; color: var(--ink); text-decoration: none; min-height: 40px; }
.gs-menu__list button:hover, .gs-menu__list a:hover, .gs-menu__list :focus-visible { background: var(--bg); }
.gs-card__size { display: grid; grid-template-columns: repeat(2, minmax(0, max-content)); gap: 8px 14px; }
.gs-w { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 6px; font-size: .82rem; color: var(--muted); }
.gs-w > span:first-child { flex-basis: 100%; font-size: .74rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.gs-w input { width: 76px; min-height: 40px; border: 1.5px solid var(--line); border-radius: 10px; padding: 6px 8px; font-weight: 700; text-align: center; background: #fff; color: var(--ink); }
.gs-w input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(31,91,255,.14); }
.gs-card.is-bad .gs-w input { border-color: #F6C6C1; }
.gs-lock { display: inline-flex; align-items: center; gap: 8px; font-size: .84rem; font-weight: 600; cursor: pointer; min-height: 32px; justify-self: start; }
.gs-lock input { width: 18px; height: 18px; accent-color: var(--accent); margin: 0; }
.gs-card__orig { margin: 0; font-size: .78rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.gs-card__copies { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; font-size: .84rem; font-weight: 700; }
.gs-card .qty button { width: 36px; height: 36px; font-size: 1rem; }
.gs-card .qty input { width: 52px; font-size: .95rem; }
.gs-card__warn { margin: 0; font-size: .8rem; font-weight: 600; color: #8A4B00; background: #FFF6E0; border: 1px solid #F3D9A0; border-radius: var(--r-sm); padding: 6px 10px; }
.gs-card__warn[hidden] { display: none; }
.gs-card__warn--bad { color: var(--danger); background: #FFF0EF; border-color: #F6C6C1; }
.gs-card__warn .link-arrow { border: 0; background: none; padding: 0; font: inherit; font-weight: 800; color: inherit; text-decoration: underline; cursor: pointer; }
@media (max-width: 420px) {
  .gs-card { grid-template-columns: 64px minmax(0, 1fr); padding: 10px; gap: 10px; }
  .gs-card__thumb { width: 64px; height: 64px; }
  .gs-card__thumb canvas { width: 58px; height: 58px; }
  .gs-w input { width: 64px; }
}

/* Layout */
.gs-margin { max-width: 200px; margin-bottom: 10px; }
.gs-margin label { font-size: .82rem; }
.gs-margin .input { min-height: 44px; padding: 8px 12px; }
.gs-switch { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: .9rem; cursor: pointer; min-height: 44px; }
.gs-switch[hidden] { display: none; }
.gs-switch input { width: 20px; height: 20px; accent-color: var(--accent); margin: 0; flex: none; }

.gs-nest { border: 0; padding: 0; margin: 10px 0 0; min-width: 0; }
.gs-radio { display: flex; gap: 10px; align-items: flex-start; padding: 10px 12px; border: 1.5px solid var(--line); border-radius: var(--r); cursor: pointer; margin-bottom: 8px; }
.gs-radio:has(input:checked) { border-color: var(--ink); }
.gs-radio input { width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--accent); flex: none; }
.gs-radio b { display: block; font-size: .9rem; }
.gs-radio small { display: block; color: var(--muted); font-size: .8rem; }
.gs-nest .gs-note:empty { display: none; }

/* Summary */
.gs-summary { margin: 0; display: grid; }
.gs-summary > div { display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; border-bottom: 1px dashed var(--line); font-size: .92rem; }
.gs-summary dt { color: var(--muted); }
.gs-summary dd { margin: 0; font-weight: 700; text-align: right; font-variant-numeric: tabular-nums; }
.gs-summary .gs-price { border-bottom: 0; padding-top: 12px; align-items: baseline; }
.gs-summary .gs-price dt { color: var(--ink); font-weight: 700; }
.gs-summary .gs-price dd { font-family: var(--font-display); font-size: 1.25rem; letter-spacing: -.01em; line-height: 1.1; }
.gs-actions { display: grid; gap: 8px; margin-top: 14px; }
.gs-actions .btn.is-busy { opacity: .7; pointer-events: none; }

/* ---------- Preview ---------- */
.gs-preview { position: sticky; top: calc(var(--header-h) + 16px); min-width: 0; background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 16px; scroll-margin-top: calc(var(--header-h) + 16px); }
.gs-preview:focus { outline: none; }
@media (max-width: 960px) { .gs-preview { position: static; } }
.gs-preview__bar { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.gs-preview__label { margin: 0; }
.gs-big { margin: 2px 0 0; font-family: var(--font-display); font-weight: 700; font-size: clamp(1.3rem, 2.4vw, 1.75rem); letter-spacing: -.02em; line-height: 1.1; }
.gs-canvas-wrap { position: relative; max-height: min(78vh, 900px); overflow: auto; border-radius: var(--r); background: var(--bg); min-height: 260px; display: flex; justify-content: center; align-items: flex-start; padding: 12px; overscroll-behavior: contain; }
@media (max-width: 960px) { .gs-canvas-wrap { max-height: none; } }
.gs-sheets { width: 100%; display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
.gs-sheet { margin: 0; display: flex; flex-direction: column; align-items: center; gap: 6px; cursor: zoom-in; border-radius: var(--r-sm); }
.gs-sheet:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; }
.gs-sheet canvas { display: block; }
.gs-sheet figcaption { font-size: .78rem; font-weight: 700; color: var(--muted); letter-spacing: .04em; }
.gs-canvas-wrap.is-empty .gs-sheets { display: none; }
.gs-empty { position: absolute; inset: 0; display: none; flex-direction: column; align-items: center; justify-content: center; gap: 6px; text-align: center; padding: 24px; color: var(--muted); }
.gs-canvas-wrap.is-empty .gs-empty { display: flex; }
.gs-empty svg { width: 40px; height: 40px; color: var(--accent); margin-bottom: 6px; }
.gs-empty b { color: var(--ink); font-family: var(--font-display); font-size: 1.15rem; letter-spacing: -.02em; }
.gs-preview__meta { font-family: var(--font-mono); font-size: .74rem; letter-spacing: .04em; }
.gs-warn { margin: 0 0 12px; padding: 10px 12px; border-radius: var(--r); background: #FFF0EF; border: 1px solid #F6C6C1; color: var(--danger); font-weight: 600; font-size: .88rem; }

/* ---------- Sticky action bar ---------- */
.gs-bar { position: sticky; bottom: 12px; z-index: 40; margin-top: 20px; display: flex; align-items: center; gap: 10px 16px; flex-wrap: wrap; padding: 10px 12px 10px 16px; background: var(--ink); color: #fff; border-radius: var(--r-lg); box-shadow: var(--sh-3); }
.gs-bar__gap { display: flex; align-items: center; gap: 8px; font-size: .85rem; font-weight: 700; }
.gs-bar__gap .input { color: var(--ink); width: 76px; min-height: 40px; padding: 6px 8px; text-align: center; font-weight: 700; }
.gs-bar__total { margin: 0; flex: 1 1 auto; font-weight: 800; font-variant-numeric: tabular-nums; }
.gs-bar__btns { display: flex; gap: 8px; flex-wrap: wrap; }
.gs-bar .btn--ghost { --fg-btn: #fff; border-color: rgba(255,255,255,.6); }
.gs-bar .btn--ghost:hover { --bg-btn: #fff; --fg-btn: var(--ink); }
.gs-bar .btn.is-busy { opacity: .7; pointer-events: none; }
@media (max-width: 760px) {
  .gs-bar { bottom: 8px; padding: 10px; gap: 8px; }
  .gs-bar__total { order: -1; flex-basis: 100%; font-size: .9rem; }
  .gs-bar__btns { flex: 1 1 auto; }
  .gs-bar__btns .btn { flex: 1 1 auto; padding: 8px 10px; }
  .gs-bar__btns .btn--ghost span { display: none; }
  body:has(.gs-bar) .dock { bottom: 168px; }
}

/* ---------- Upload progress overlay ---------- */
.gs-upload { position: fixed; inset: 0; z-index: 260; display: grid; place-items: center; background: rgba(10,10,10,.55); padding: 16px; }
.gs-upload[hidden] { display: none; }
.gs-upload__card { width: min(340px, 100%); background: #fff; border-radius: var(--r-lg); padding: 24px; display: grid; justify-items: center; gap: 8px; text-align: center; box-shadow: var(--sh-3); }
.gs-upload__thumb { width: 120px; height: 120px; border-radius: var(--r); display: grid; place-items: center; overflow: hidden; background: repeating-conic-gradient(#E4E1DA 0% 25%, #fff 0% 50%) 0 0 / 12px 12px; margin-bottom: 6px; }
.gs-upload__thumb img { max-width: 100%; max-height: 100%; object-fit: contain; }
.gs-upload__card b { font-family: var(--font-display); font-size: 1.2rem; letter-spacing: -.02em; }
.gs-upload__count { font-weight: 800; font-variant-numeric: tabular-nums; }
.gs-upload__bar { width: 100%; height: 6px; border-radius: 999px; background: var(--bg-2); overflow: hidden; }
.gs-upload__bar i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .2s; }
.gs-upload__card small { color: var(--muted); }

/* ---------- Sheet lightbox ---------- */
.gs-lb { position: fixed; inset: 0; z-index: 300; background: rgba(5,5,10,.94); display: grid; grid-template-rows: auto minmax(0, 1fr) auto; color: #fff; }
.gs-lb[hidden] { display: none; }
.gs-lb__bar { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 10px 12px 10px 18px; flex-wrap: wrap; }
.gs-lb__tools { display: flex; gap: 6px; }
.gs-lb__btn { min-width: 44px; height: 44px; border-radius: 999px; border: 1.5px solid rgba(255,255,255,.35); background: transparent; color: #fff; display: grid; place-items: center; font-weight: 800; }
.gs-lb__btn--txt { padding: 0 14px; }
.gs-lb__btn:hover { background: rgba(255,255,255,.12); }
.gs-lb__btn[disabled] { opacity: .35; pointer-events: none; }
.gs-lb__btn svg { width: 18px; height: 18px; }
.gs-lb__stage { position: relative; overflow: hidden; touch-action: none; cursor: grab; }
.gs-lb__stage:active { cursor: grabbing; }
.gs-lb__stage canvas { position: absolute; left: 0; top: 0; transform-origin: 0 0; background: #fff; border-radius: 2px; }
.gs-lb__hint { margin: 0; padding: 8px 16px 14px; text-align: center; font-size: .8rem; color: var(--muted-on-dark); }
@media (max-width: 520px) { .gs-lb__btn { min-width: 40px; height: 40px; } .gs-lb__bar { padding: 8px; } }

/* ---------- Studio notes ---------- */
.gs-notes h2 { margin-bottom: 32px; }
.gs-tips { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
@media (max-width: 960px) { .gs-tips { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .gs-tips { grid-template-columns: minmax(0, 1fr); } }
.gs-tips li { border-top: 1px solid var(--ink); padding-top: 16px; }
.gs-tips__n { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .14em; color: var(--accent); display: block; margin-bottom: 10px; }
.gs-tips h3 { margin-bottom: 8px; }
.gs-tips p { color: var(--muted); font-size: .95rem; margin: 0; }

@media (prefers-reduced-motion: reduce) {
  .gs-steps li::before, .gs-card { transition: none; }
  .gs-card.is-flash { animation: none; }
}