/* ===== Tokens ===== */
:root {
  --bg: #FAFAF8;
  --bg-2: #F4F3EF;
  --panel: #FFFFFF;
  --border: #E8E6E1;
  --border-strong: #D6D3CC;
  --text: #18181B;
  --text-2: #52525B;
  --text-3: #9B9A95;
  --text-4: #C6C4BE;
  --accent: #5552E0;
  --accent-soft: #EDECFD;
  --accent-hover: #4744D1;
  --hover: #F4F3EF;
  --active: #ECEAE4;
  --shadow-sm: 0 1px 2px rgba(20,20,20,.04);
  --shadow: 0 1px 2px rgba(20,20,20,.04), 0 12px 32px -8px rgba(20,20,20,.08);
  --shadow-lg: 0 1px 2px rgba(20,20,20,.04), 0 24px 64px -16px rgba(20,20,20,.12);
  --r-1: 4px;
  --r-2: 6px;
  --r-3: 8px;
  --r-4: 12px;
  --font-ui: "Manrope", ui-sans-serif, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body, #root { height: 100%; margin: 0; }
body {
  font-family: var(--font-ui);
  font-feature-settings: "cv11", "ss01";
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
input, textarea, select { font: inherit; color: inherit; }
input:focus, textarea:focus, select:focus { outline: none; }
::selection { background: var(--accent-soft); }

/* ===== App shell ===== */
.app {
  display: grid;
  grid-template-rows: 48px 1fr;
  height: 100vh;
  min-height: 640px;
  background: var(--bg);
}
.app-main {
  display: grid;
  grid-template-columns: 1fr 360px;
  min-height: 0;
}

/* ===== Header ===== */
.hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.hdr-left, .hdr-center, .hdr-right { display: flex; align-items: center; gap: 6px; }
.hdr-center { gap: 8px; flex: 1; justify-content: center; }
.brand {
  display: flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 13px; letter-spacing: -.01em;
}
.brand-mark {
  width: 22px; height: 22px; border-radius: 6px;
  background: linear-gradient(135deg, #5552E0 0%, #8A86FF 100%);
  display: grid; place-items: center; color: white; font-weight: 800;
  font-size: 11px; letter-spacing: -.02em;
}
.crumb {
  display: flex; align-items: center; gap: 6px;
  color: var(--text-3); font-size: 12px;
  padding: 4px 8px; border-radius: var(--r-2);
}
.crumb b { color: var(--text); font-weight: 500; }
.crumb input {
  border: 0; background: transparent; padding: 0; width: 160px;
  font-weight: 500; color: var(--text);
}
.dot { width: 3px; height: 3px; border-radius: 50%; background: var(--text-4); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  height: 28px; padding: 0 10px; border-radius: var(--r-2);
  border: 1px solid transparent; color: var(--text);
  font-size: 12px; font-weight: 500;
  transition: background .12s, border-color .12s;
}
.btn:hover { background: var(--hover); }
.btn.ghost { color: var(--text-2); }
.btn.outline { border-color: var(--border); background: var(--panel); }
.btn.outline:hover { background: var(--hover); border-color: var(--border-strong); }
.btn.primary {
  background: var(--text); color: white;
  font-weight: 600;
}
.btn.primary:hover { background: #000; }
.btn.icon { width: 28px; padding: 0; justify-content: center; }
.btn[aria-pressed="true"] { background: var(--active); color: var(--text); }
.btn-group {
  display: inline-flex; padding: 2px;
  background: var(--bg-2); border-radius: var(--r-2);
  gap: 1px;
}
.btn-group .btn {
  height: 24px; padding: 0 8px; border-radius: 4px;
  color: var(--text-2); font-size: 11.5px; font-weight: 500;
}
.btn-group .btn[aria-pressed="true"] {
  background: var(--panel); color: var(--text);
  box-shadow: 0 1px 2px rgba(0,0,0,.06), 0 0 0 1px rgba(0,0,0,.04);
}
.kbd {
  display: inline-grid; place-items: center;
  min-width: 16px; height: 16px; padding: 0 4px;
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 3px; font-size: 10px; color: var(--text-3);
  font-family: var(--font-ui); font-weight: 600;
}

/* ===== Canvas / Preview area ===== */
.canvas {
  position: relative;
  background:
    radial-gradient(circle at 1px 1px, rgba(20,20,20,.045) 1px, transparent 0) 0 0/20px 20px,
    var(--bg);
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-width: 0;
  min-height: 0;
}
.canvas-top {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; gap: 12px;
}
.canvas-mid {
  display: flex; align-items: stretch; justify-content: stretch;
  padding: 8px 28px;
  min-height: 0;
  min-width: 0;
}
.canvas-mid > * { flex: 1; min-width: 0; min-height: 0; }
.canvas-bot {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 20px; color: var(--text-3); font-size: 11.5px;
}
.aspect-tabs { display: flex; align-items: center; gap: 2px; }

.cover-stage {
  position: relative;
  display: grid; place-items: center;
  width: 100%; height: 100%;
  min-height: 0;
}
.cover-frame {
  position: relative;
  filter: drop-shadow(0 24px 48px rgba(20,20,20,.10)) drop-shadow(0 4px 8px rgba(20,20,20,.04));
}
.cover {
  position: relative;
  overflow: hidden;
  container-type: inline-size;
  background: white;
  border-radius: 2px;
  isolation: isolate;
}
.cover-ruler {
  position: absolute; pointer-events: none;
  inset: -1px;
  border: 1px solid rgba(85, 82, 224, .35);
  border-radius: 2px;
  opacity: 0;
  transition: opacity .15s;
}
.cover-frame:hover .cover-ruler { opacity: 1; }

/* ===== Right Panel ===== */
.panel {
  background: var(--panel);
  border-left: 1px solid var(--border);
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 0;
}
.panel-tabs {
  display: flex;
  padding: 8px 8px 0;
  gap: 2px;
  border-bottom: 1px solid var(--border);
}
.panel-tab {
  padding: 8px 10px;
  font-size: 12px; font-weight: 500; color: var(--text-3);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color .12s, border-color .12s;
}
.panel-tab:hover { color: var(--text-2); }
.panel-tab[aria-selected="true"] {
  color: var(--text); border-bottom-color: var(--text);
}
.panel-body {
  overflow-y: auto;
  padding: 16px;
}
.panel-foot {
  border-top: 1px solid var(--border);
  padding: 10px 12px;
  display: flex; justify-content: space-between; align-items: center;
  gap: 8px;
}

/* ===== Sections / form controls ===== */
.sec { margin-bottom: 20px; }
.sec:last-child { margin-bottom: 4px; }
.sec-hd {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 10px;
}
.sec-hd h3 {
  margin: 0; font-size: 11px; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase; color: var(--text-3);
}
.sec-hd .sec-act { font-size: 11px; color: var(--text-3); cursor: pointer; }
.sec-hd .sec-act:hover { color: var(--text); }

.field { margin-bottom: 10px; }
.field-label {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 11.5px; color: var(--text-2); margin-bottom: 5px;
}
.field-label .val { color: var(--text-3); font-variant-numeric: tabular-nums; font-size: 11px; }

.input, .textarea, .select {
  width: 100%; padding: 7px 9px;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--r-2); font-size: 12.5px;
  color: var(--text);
  transition: border-color .12s, background .12s;
}
.input:hover, .textarea:hover, .select:hover { border-color: var(--border-strong); }
.input:focus, .textarea:focus, .select:focus { border-color: var(--text); }
.textarea { resize: none; min-height: 60px; line-height: 1.4; }
.input::placeholder, .textarea::placeholder { color: var(--text-3); }

.row { display: flex; gap: 6px; }
.row > * { flex: 1; min-width: 0; }
.row-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }

/* Segmented */
.seg {
  display: grid; gap: 2px;
  background: var(--bg-2);
  padding: 2px; border-radius: var(--r-2);
  grid-auto-flow: column; grid-auto-columns: 1fr;
}
.seg-btn {
  height: 26px; border-radius: 4px;
  color: var(--text-2); font-size: 11.5px; font-weight: 500;
  display: grid; place-items: center;
  transition: background .12s, color .12s;
}
.seg-btn:hover { color: var(--text); }
.seg-btn[aria-pressed="true"] {
  background: var(--panel); color: var(--text);
  box-shadow: 0 1px 2px rgba(0,0,0,.06), 0 0 0 1px rgba(0,0,0,.04);
}

/* Slider */
.slider { width: 100%; height: 20px; appearance: none; background: transparent; }
.slider::-webkit-slider-runnable-track {
  height: 3px; background: var(--bg-2); border-radius: 3px;
}
.slider::-webkit-slider-thumb {
  appearance: none; width: 14px; height: 14px; border-radius: 50%;
  background: var(--panel); border: 1px solid var(--border-strong);
  box-shadow: 0 1px 2px rgba(0,0,0,.1); margin-top: -6px;
  cursor: pointer;
}
.slider::-moz-range-track { height: 3px; background: var(--bg-2); border-radius: 3px; border: 0; }
.slider::-moz-range-thumb {
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--panel); border: 1px solid var(--border-strong);
  cursor: pointer;
}

/* Color chips */
.chips {
  display: grid; grid-template-columns: repeat(8, 1fr); gap: 5px;
}
.chip {
  width: 100%; aspect-ratio: 1; border-radius: 5px;
  border: 1px solid rgba(0,0,0,.06);
  cursor: pointer;
  transition: transform .12s, box-shadow .12s;
}
.chip:hover { transform: scale(1.06); }
.chip[aria-pressed="true"] {
  box-shadow: 0 0 0 2px var(--panel), 0 0 0 4px var(--text);
}

/* Style preset grid */
.preset-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.preset-card {
  position: relative;
  border: 1px solid var(--border); border-radius: var(--r-3);
  overflow: hidden; cursor: pointer; background: var(--panel);
  transition: border-color .12s, transform .12s, box-shadow .12s;
}
.preset-card:hover {
  border-color: var(--border-strong);
  box-shadow: 0 4px 12px -2px rgba(0,0,0,.06);
}
.preset-card[aria-pressed="true"] {
  border-color: var(--text);
  box-shadow: 0 0 0 1px var(--text);
}
.preset-thumb {
  height: 84px; container-type: inline-size;
  position: relative; overflow: hidden;
}
.preset-meta {
  padding: 7px 9px;
  display: flex; justify-content: space-between; align-items: center;
  border-top: 1px solid var(--border);
}
.preset-meta .name { font-size: 11.5px; font-weight: 600; color: var(--text); }
.preset-meta .tag { font-size: 10px; color: var(--text-3); font-variant-numeric: tabular-nums; }

/* Field card (per text field) */
.field-card {
  border: 1px solid var(--border); border-radius: var(--r-3);
  background: var(--panel); overflow: hidden;
  margin-bottom: 8px;
}
.field-card-hd {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 10px; cursor: pointer;
}
.field-card-hd .lbl {
  display: flex; align-items: center; gap: 8px;
  font-weight: 600; font-size: 12px;
}
.field-card-hd .dotty {
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--bg-2); border: 1px solid var(--border);
  font-size: 9px; display: grid; place-items: center;
  color: var(--text-3); font-weight: 700;
}
.field-card-body {
  padding: 4px 10px 12px;
  border-top: 1px solid var(--border);
  background: #FBFAF7;
}

/* Background mode tabs */
.bg-modes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; margin-bottom: 12px; }
.bg-mode {
  padding: 8px 4px; border: 1px solid var(--border); border-radius: var(--r-2);
  background: var(--panel); font-size: 11px; color: var(--text-2);
  display: grid; place-items: center; gap: 4px;
  text-align: center;
}
.bg-mode:hover { border-color: var(--border-strong); }
.bg-mode[aria-pressed="true"] {
  border-color: var(--text); background: var(--text); color: white;
}
.bg-mode svg { width: 16px; height: 16px; }

.search-box {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 10px; border: 1px solid var(--border); border-radius: var(--r-2);
}
.search-box input { border: 0; padding: 0; flex: 1; background: transparent; font-size: 12.5px; }
.search-box svg { width: 14px; height: 14px; color: var(--text-3); flex: 0 0 14px; }

.dropzone {
  border: 1.5px dashed var(--border-strong); border-radius: var(--r-3);
  padding: 18px 12px; text-align: center; color: var(--text-3);
  font-size: 12px; background: var(--bg);
}
.dropzone b { color: var(--text); }
.dropzone .hint { font-size: 11px; margin-top: 4px; color: var(--text-3); }

.gradient-pair {
  display: grid; grid-template-columns: 1fr 1fr; gap: 6px;
  margin-top: 6px;
}
.color-row {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 8px; border: 1px solid var(--border); border-radius: var(--r-2);
}
.color-row .swatch {
  width: 18px; height: 18px; border-radius: 4px; border: 1px solid rgba(0,0,0,.08);
}
.color-row code { font-size: 11.5px; color: var(--text-2); font-family: "JetBrains Mono", ui-monospace, monospace; }

.pattern-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.pattern-card {
  aspect-ratio: 1; border: 1px solid var(--border);
  border-radius: var(--r-2); cursor: pointer;
  background-size: 12px 12px;
}
.pattern-card[aria-pressed="true"] { box-shadow: 0 0 0 2px var(--panel), 0 0 0 4px var(--text); }

/* Blocks constructor (mini) */
.blocks-mini {
  position: relative;
  height: 120px; border: 1px solid var(--border); border-radius: var(--r-3);
  background: #F8F6F0;
  overflow: hidden;
}
.blocks-mini .lay {
  position: absolute; border-radius: 4px; cursor: grab;
  box-shadow: 0 1px 2px rgba(0,0,0,.06);
}
.blocks-mini .lay.sel { box-shadow: 0 0 0 2px var(--accent); }
.blocks-pal { display: flex; gap: 4px; margin-top: 8px; }
.blocks-pal button {
  height: 26px; padding: 0 8px; border-radius: var(--r-2);
  border: 1px solid var(--border); background: var(--panel);
  font-size: 11.5px; font-weight: 500; color: var(--text-2);
}
.blocks-pal button:hover { border-color: var(--border-strong); }

/* Templates */
.tmpl-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.tmpl-card {
  border: 1px solid var(--border); border-radius: var(--r-3);
  overflow: hidden; cursor: pointer; background: var(--panel);
  transition: transform .12s, box-shadow .12s;
}
.tmpl-card:hover { box-shadow: 0 6px 16px -4px rgba(0,0,0,.08); }
.tmpl-thumb { height: 110px; container-type: inline-size; position: relative; overflow: hidden; }
.tmpl-meta { padding: 6px 9px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.tmpl-meta .name { font-size: 11.5px; font-weight: 600; }
.tmpl-meta .date { font-size: 10.5px; color: var(--text-3); }

/* History */
.history-pop {
  position: absolute; right: 16px; top: 56px; z-index: 30;
  width: 280px; background: var(--panel);
  border: 1px solid var(--border); border-radius: var(--r-3);
  box-shadow: var(--shadow);
  overflow: hidden;
  animation: pop .15s ease-out;
}
@keyframes pop {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.history-pop .hp-hd {
  padding: 10px 12px; border-bottom: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
}
.history-pop .hp-hd h4 { margin: 0; font-size: 12px; font-weight: 600; }
.history-pop ul { list-style: none; margin: 0; padding: 4px; max-height: 320px; overflow-y: auto; }
.history-pop li {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: var(--r-2); cursor: pointer;
}
.history-pop li:hover { background: var(--hover); }
.history-pop li.cur { background: var(--accent-soft); }
.history-pop .h-dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--text-4);
  flex: 0 0 6px;
}
.history-pop li.cur .h-dot { background: var(--accent); }
.history-pop .h-text { font-size: 12px; flex: 1; }
.history-pop .h-time { font-size: 11px; color: var(--text-3); font-variant-numeric: tabular-nums; }

/* Toast */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--text); color: white;
  padding: 10px 14px; border-radius: var(--r-2);
  font-size: 12.5px; font-weight: 500;
  box-shadow: var(--shadow-lg);
  z-index: 100;
  animation: toast .25s ease-out;
}
@keyframes toast {
  from { opacity: 0; transform: translate(-50%, 6px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* Misc icons */
.ico {
  width: 14px; height: 14px;
  stroke: currentColor; stroke-width: 1.5; fill: none;
  stroke-linecap: round; stroke-linejoin: round;
  flex: 0 0 14px;
}
.ico-sm { width: 12px; height: 12px; flex: 0 0 12px; }
.ico-lg { width: 16px; height: 16px; flex: 0 0 16px; }

/* Scrollbar */
.panel-body::-webkit-scrollbar, .history-pop ul::-webkit-scrollbar { width: 8px; }
.panel-body::-webkit-scrollbar-thumb, .history-pop ul::-webkit-scrollbar-thumb {
  background: var(--border); border-radius: 4px;
  border: 2px solid var(--panel);
}
.panel-body::-webkit-scrollbar-thumb:hover { background: var(--border-strong); }