/* 妙妙工具箱共用样式：颜色和字体变量 + 基础控件。各工具页自己的布局写在页面里 */
:root {
  --bg: #f2f0f5; --panel: #ffffff; --rule: #dcd7e3; --fg: #1d1a23; --muted: #6b6578;
  --accent: #9a6512; --accent-fg: #ffffff; --chk1: #e6e3ea; --chk2: #f7f6f9;
  --display: "Chakra Petch", "PingFang SC", "Microsoft YaHei", sans-serif;
  --body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --bg: #131217; --panel: #1b1a21; --rule: #2e2b37; --fg: #ebe8f0; --muted: #9a94a8;
  --accent: #dba84a; --accent-fg: #1b1408; --chk1: #24222b; --chk2: #2c2a34; color-scheme: dark } }
:root[data-theme="dark"] {
  --bg: #131217; --panel: #1b1a21; --rule: #2e2b37; --fg: #ebe8f0; --muted: #9a94a8;
  --accent: #dba84a; --accent-fg: #1b1408; --chk1: #24222b; --chk2: #2c2a34; color-scheme: dark }

* { box-sizing: border-box }
body { background: var(--bg); color: var(--fg); font-family: var(--body); font-size: 14px; line-height: 1.5;
  padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); padding-block: 20px 40px }
a { color: var(--accent) }
.app { max-width: 1280px; margin: 0 auto; display: grid; gap: 18px }
.top { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 16px; border-bottom: 1px solid var(--rule); padding-bottom: 12px }
.top h1 { margin: 0; font-family: var(--display); font-weight: 600; font-size: 26px; letter-spacing: .04em; text-wrap: balance }
.top p { margin: 0; color: var(--muted) }
.home { flex-basis: 100%; font-size: 13px; color: var(--muted); text-decoration: none }
.home:hover { color: var(--accent) }

.group { display: grid; gap: 10px; padding: 14px 0; border-bottom: 1px solid var(--rule) }
.group h2 { margin: 0; font-family: var(--display); font-weight: 500; font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted) }
.chips { display: flex; flex-wrap: wrap; gap: 6px }
.chip { font: inherit; font-size: 13px; color: var(--fg); background: var(--panel); border: 1px solid var(--rule); border-radius: 999px; padding: 5px 12px; cursor: pointer }
.chip[aria-pressed="true"] { background: var(--accent); color: var(--accent-fg); border-color: var(--accent) }
.chip:focus-visible, button:focus-visible, select:focus-visible, input:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px }
.sliders { display: grid; gap: 10px }
.row { display: grid; gap: 2px }
.row .lab { display: flex; justify-content: space-between; gap: 8px; font-size: 13px }
.row output { font-family: var(--mono); font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums }
input[type="range"] { width: 100%; accent-color: var(--accent); margin: 2px 0 }
.field { display: flex; align-items: center; justify-content: space-between; gap: 10px; font-size: 13px }
select, .hex { font: inherit; font-size: 13px; color: var(--fg); background: var(--panel); border: 1px solid var(--rule); border-radius: 6px; padding: 5px 8px }
.hex { font-family: var(--mono); width: 7.5em }
.btn { font: inherit; font-weight: 600; font-size: 15px; border: 0; border-radius: 6px; padding: 11px 16px; cursor: pointer; background: var(--accent); color: var(--accent-fg) }
.btn.ghost { background: var(--panel); color: var(--fg); border: 1px solid var(--rule); font-weight: 400; font-size: 13px; padding: 6px 12px; justify-self: start }
.btn:disabled { opacity: .55; cursor: progress }
.status { font-size: 13px; color: var(--muted); min-height: 1.5em; margin: 0 }
textarea { font: inherit; font-family: var(--mono); font-size: 13px; color: var(--fg); background: var(--panel); border: 1px solid var(--rule); border-radius: 6px; padding: 6px 8px; width: 100%; resize: vertical }
.text { font: inherit; font-size: 13px; color: var(--fg); background: var(--panel); border: 1px solid var(--rule); border-radius: 6px; padding: 6px 8px; width: 100%; min-width: 0 }
.stack { display: grid; gap: 4px; font-size: 13px }

/* 工具页通用布局：左边大预览（宽屏时吸顶），右边一列控制台；窄屏上下堆叠 */
.layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 18px }
@media (min-width: 880px) {
  .layout { grid-template-columns: minmax(0, 1fr) 360px }
  .stage { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 16px); align-self: start }
}
.stage { display: grid; gap: 8px; min-width: 0 }
.frame { border: 1px solid var(--rule); border-radius: 6px; padding: 10px; display: grid; place-items: center;
  background: repeating-conic-gradient(var(--chk1) 0 25%, var(--chk2) 0 50%) 0 0 / 20px 20px }
.frame canvas { display: block; max-width: 100%; max-height: 72vh; width: auto; height: auto }
.meta { font-family: var(--mono); font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums }
.panel { display: grid; gap: 4px; min-width: 0; align-content: start }
.colorline { display: flex; align-items: center; gap: 8px }
input[type="color"] { width: 40px; height: 32px; border: 1px solid var(--rule); border-radius: 6px; background: var(--panel); padding: 2px; cursor: pointer }
.swatches { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 6px }
.sw { font: inherit; display: grid; gap: 4px; padding: 0; border: 0; background: none; color: var(--fg); cursor: pointer; text-align: left; min-width: 0 }
.sw i { display: block; height: 34px; border-radius: 4px; border: 1px solid var(--rule) }
.sw span { font-size: 11px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis }
.sw b { font-family: var(--mono); font-weight: 400; font-size: 10px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis }
.fallback { display: grid; gap: 6px }
.fallback img { border: 1px solid var(--rule); border-radius: 4px; max-height: 260px; width: auto; justify-self: start;
  background: repeating-conic-gradient(var(--chk1) 0 25%, var(--chk2) 0 50%) 0 0 / 14px 14px }
.tips { padding: 14px 0; font-size: 13px }
.tips summary { cursor: pointer; font-family: var(--display); letter-spacing: .06em }
.tips ul { margin: 8px 0 0; padding-left: 1.2em; display: grid; gap: 4px; color: var(--muted) }
.tips b { color: var(--fg); font-weight: 500 }

/* 看着调的布局：画布下面一条工具栏；面板分标签页。
   宽屏：左画布右面板，两边都吸住，面板自己滚。窄屏：画布区吸顶（太高就自己滚），标签页吸在它下面 */
.toolbar { display: flex; flex-wrap: wrap; gap: 4px 8px; align-items: center; background: var(--panel); border: 1px solid var(--rule); border-radius: 8px; padding: 4px 4px 4px 10px }
.toolbar .btn { margin-left: auto; padding: 8px 18px; font-size: 14px }
.tabs { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); gap: 2px; background: var(--rule); border-radius: 8px; padding: 2px; position: sticky; top: 0; z-index: 2 }
.tab { font: inherit; font-size: 13px; border: 0; border-radius: 6px; background: var(--bg); color: var(--muted); padding: 8px 4px; cursor: pointer; white-space: nowrap; overflow: hidden; text-overflow: ellipsis }
.tab[aria-selected="true"] { background: var(--panel); color: var(--fg); font-weight: 600 }
.pane { display: grid; gap: 4px; padding-top: 4px; min-width: 0 }
.stage > .status { margin: 0 }
@media (min-width: 880px) {
  .layout { grid-template-columns: minmax(0, 1fr) 380px }
  .panel { max-height: calc(100dvh - 40px); overflow-y: auto; position: sticky; top: calc(env(safe-area-inset-top, 0px) + 16px); align-self: start; padding-right: 4px }
  .frame canvas { max-height: calc(100dvh - 170px) }
}
@media (max-width: 879px) {
  .stage { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 5; background: var(--bg); padding-block: 8px; max-height: 62dvh; overflow-y: auto }
  .frame { padding: 6px }
  .frame canvas { max-height: 40dvh }
  .tabs { top: var(--stage-h, 0px); z-index: 4 }
}

@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important } }