:root {
  --bg: #f4efe6;
  --surface: rgba(255, 251, 243, 0.84);
  --line: rgba(18, 44, 51, 0.12);
  --ink: #17323a;
  --soft: #537077;
  --accent: #bf5a36;
  --accent-strong: #8f2f1d;
  --mono: "Cascadia Code", Consolas, monospace;
  --sans: "Segoe UI Variable Text", "Aptos", "Trebuchet MS", sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--sans);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(191, 90, 54, 0.15), transparent 28%),
    radial-gradient(circle at top right, rgba(23, 50, 58, 0.1), transparent 30%),
    linear-gradient(145deg, var(--bg), #fbf7f0 56%, #efe2c4);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(23, 50, 58, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 50, 58, 0.03) 1px, transparent 1px);
  background-size: 24px 24px;
}

.wrap {
  width: min(1180px, calc(100vw - 28px));
  margin: 18px auto;
  display: grid;
  gap: 16px;
}

.hero,
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 18px 44px rgba(32, 40, 47, 0.12);
  backdrop-filter: blur(8px);
}

.hero {
  padding: 24px 26px;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -70px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(191, 90, 54, 0.18), transparent 70%);
}

h1,
h2 { margin: 0; font-weight: 700; letter-spacing: 0; }
h1 { font-size: 38px; line-height: 1.08; max-width: 760px; }
.hero p { margin: 10px 0 0; max-width: 900px; color: var(--soft); line-height: 1.55; }

.eyebrow {
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-strong);
}

.note {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  margin-top: 14px;
  padding: 9px 12px;
  border-radius: 999px;
  background: rgba(23, 50, 58, 0.07);
  font-size: 13px;
}

.tool-tabs {
  position: relative;
  z-index: 1;
  display: inline-grid;
  grid-template-columns: repeat(3, minmax(130px, 1fr));
  gap: 4px;
  margin-top: 16px;
  padding: 4px;
  border: 1px solid rgba(23, 50, 58, 0.12);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.66);
}

.tool-tab {
  min-height: 38px;
  padding: 0 16px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--soft);
  cursor: pointer;
}

.tool-tab[aria-selected="true"] {
  color: #fff9f1;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  box-shadow: 0 8px 18px rgba(191, 90, 54, 0.22);
}

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(320px, 0.94fr);
  gap: 16px;
}

.panel { padding: 20px; }
.head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; margin-bottom: 14px; }
.status { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }

.pill {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid rgba(23, 50, 58, 0.1);
  background: rgba(255, 255, 255, 0.55);
  font-size: 13px;
  color: var(--soft);
}

.pill strong { color: var(--ink); }

.drop {
  position: relative;
  border-radius: 18px;
  border: 1.5px dashed rgba(23, 50, 58, 0.18);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.68), rgba(255, 247, 233, 0.86));
  overflow: hidden;
  transition: border-color 0.16s ease, transform 0.16s ease, box-shadow 0.16s ease;
}

.drop.drag {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 18px 36px rgba(191, 90, 54, 0.18);
}

textarea,
select,
button,
input[type="file"],
input[type="text"],
input[type="number"] { font: inherit; }

.source-input {
  width: 100%;
  min-height: 320px;
  padding: 20px 20px 46px;
  border: 0;
  resize: vertical;
  background: transparent;
  color: var(--ink);
  line-height: 1.55;
  outline: 2px solid transparent;
  outline-offset: -2px;
}

textarea:focus-visible,
select:focus-visible,
input:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

textarea::placeholder,
input[type="text"]::placeholder { color: rgba(23, 50, 58, 0.46); }

.tip {
  position: absolute;
  right: 14px;
  bottom: 12px;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(23, 50, 58, 0.08);
  color: var(--soft);
  font-size: 12px;
}

.controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  align-items: stretch;
  margin-top: 14px;
}

.controls > * { min-width: 0; }
.field { display: grid; gap: 8px; min-width: 0; }
label { font-size: 13px; line-height: 1.2; color: var(--soft); }

select,
input[type="text"],
input[type="number"] {
  width: 100%;
  min-height: 46px;
  border-radius: 12px;
  border: 1px solid rgba(23, 50, 58, 0.14);
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink);
  padding: 10px 14px;
}

.file-input { position: absolute; opacity: 0; pointer-events: none; width: 1px; height: 1px; }
.filebox { display: flex; align-items: center; gap: 10px; min-height: 46px; padding: 8px 10px; border-radius: 12px; border: 1px solid rgba(23, 50, 58, 0.14); background: rgba(255, 255, 255, 0.78); }
.filebox span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--soft); font-size: 13px; }
.browse { min-height: 30px; padding: 0 14px; border-radius: 9px; border: 1px solid rgba(23, 50, 58, 0.14); background: rgba(23, 50, 58, 0.06); color: var(--ink); flex: 0 0 auto; }

.toggle { display: flex; align-items: center; gap: 10px; min-height: 46px; padding: 0 12px; border-radius: 12px; border: 1px solid rgba(23, 50, 58, 0.14); background: rgba(255, 255, 255, 0.78); color: var(--ink); }
.toggle input { width: 16px; height: 16px; accent-color: var(--accent); }
.toggle.off { opacity: 0.55; }

button { min-height: 46px; padding: 0 18px; border-radius: 12px; border: 1px solid transparent; cursor: pointer; transition: transform 0.16s ease, box-shadow 0.16s ease; }
button:hover { transform: translateY(-1px); }
button:disabled { opacity: 0.55; cursor: not-allowed; transform: none; box-shadow: none; }
.action { width: 100%; }
.p { color: #fff9f1; background: linear-gradient(135deg, var(--accent), var(--accent-strong)); box-shadow: 0 14px 28px rgba(191, 90, 54, 0.24); }
.s { color: var(--ink); background: rgba(255, 255, 255, 0.82); border-color: rgba(23, 50, 58, 0.14); }
.g { color: var(--soft); background: rgba(23, 50, 58, 0.05); border-color: rgba(23, 50, 58, 0.08); }

.mapping-panel { margin-top: 14px; padding: 14px; border-radius: 16px; border: 1px solid rgba(23, 50, 58, 0.12); background: rgba(255, 255, 255, 0.5); }
.mapping-panel.hidden { display: none; }
.mapping-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.mapping-head strong { font-size: 13px; color: var(--accent-strong); }
.mapping-head span,
.mapping-help { color: var(--soft); font-size: 12px; }
.mapping-help { margin: 0 0 12px; line-height: 1.5; }
.mapping-list { display: grid; gap: 10px; }
.mapping-row,
.mapping-add { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto; gap: 10px; align-items: center; }
.map-arrow { color: var(--soft); font-family: var(--mono); }
.map-delete { min-height: 38px; padding: 0 12px; color: #922f2a; background: rgba(146, 47, 42, 0.08); border-color: rgba(146, 47, 42, 0.16); }
.mapping-add { margin-top: 10px; padding-top: 10px; border-top: 1px dashed rgba(23, 50, 58, 0.16); }
.mapping-add button { min-height: 46px; }
.map-presets { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.map-chip { min-height: 30px; padding: 0 10px; border-radius: 999px; background: rgba(23, 50, 58, 0.06); border-color: rgba(23, 50, 58, 0.08); color: var(--soft); font-size: 12px; }
.mapping-empty { padding: 10px 12px; border-radius: 10px; background: rgba(23, 50, 58, 0.05); color: var(--soft); font-size: 13px; }
.mapping-json { width: 100%; min-height: 160px; padding: 14px; border-radius: 12px; border: 1px solid rgba(23, 50, 58, 0.14); background: rgba(255, 255, 255, 0.78); color: var(--ink); font-family: var(--mono); font-size: 12.5px; line-height: 1.5; resize: vertical; }
.sub-options { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }

.files { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 8px; }
.file-chip { display: inline-flex; align-items: center; gap: 6px; max-width: 100%; padding: 6px 10px; border-radius: 999px; background: rgba(23, 50, 58, 0.06); color: var(--soft); font-size: 12px; }
.file-chip > span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-chip button { min-height: 22px; padding: 0 8px; border-radius: 999px; border: 0; background: rgba(146, 47, 42, 0.1); color: #922f2a; }

.err { min-height: 22px; margin-top: 14px; color: #922f2a; font-size: 14px; white-space: pre-wrap; }
.err.warn { color: #806018; }
.meta { display: grid; gap: 10px; }
.card,
.preview { border-radius: 16px; border: 1px solid rgba(23, 50, 58, 0.12); background: rgba(255, 255, 255, 0.64); }
.card { padding: 16px; }
.card strong { display: block; margin-bottom: 8px; font-size: 14px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--accent-strong); }
.card p { margin: 0; color: var(--soft); line-height: 1.55; }

.support-card { display: grid; grid-template-columns: minmax(0, 1fr) 150px; gap: 14px; align-items: center; }
.support-qr { display: grid; place-items: center; padding: 8px; border-radius: 14px; background: #fff; border: 1px solid rgba(23, 50, 58, 0.1); }
.support-qr img { display: block; width: 132px; height: auto; border-radius: 10px; }
.support-group { display: inline-flex; margin-top: 10px; padding: 6px 10px; border-radius: 999px; background: rgba(191, 90, 54, 0.1); color: var(--accent-strong); font-family: var(--mono); font-size: 13px; }

.preview { min-height: 560px; display: grid; grid-template-rows: auto 1fr; overflow: hidden; }
.ph { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 16px 18px; border-bottom: 1px solid rgba(23, 50, 58, 0.08); background: rgba(255, 247, 233, 0.72); }
.ph small { color: var(--soft); }
.ph-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
pre { margin: 0; padding: 18px; overflow: auto; font-family: var(--mono); font-size: 12.5px; line-height: 1.6; color: #143039; background: linear-gradient(180deg, rgba(255, 255, 255, 0.52), rgba(248, 244, 236, 0.86)); }
.foot { color: var(--soft); font-size: 13px; line-height: 1.6; }
code { font-family: var(--mono); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

@media (max-width: 980px) {
  .grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .wrap { width: min(100vw - 16px, 100%); margin: 10px auto 16px; }
  .hero,
  .panel { padding: 18px; border-radius: 16px; }
  h1 { font-size: 30px; }
  .note { align-items: flex-start; border-radius: 12px; }
  .tool-tabs { display: grid; grid-template-columns: 1fr; width: 100%; }
  .source-input { min-height: 240px; padding: 18px 18px 48px; }
  .controls,
  .sub-options,
  .mapping-row,
  .mapping-add { grid-template-columns: 1fr; }
  .map-arrow { display: none; }
  .support-card { grid-template-columns: 1fr; }
  .support-qr { justify-self: start; }
  .preview { min-height: 420px; }
}