:root {
  color-scheme: light;
  --bg: #f3f4f6;
  --panel: #ffffff;
  --ink: #191919;
  --muted: #70757d;
  --line: #dfe5ea;
  --yellow: #ffce00;
  --yellow-dark: #f4bd00;
  --accent: #111827;
}

@font-face {
  font-family: "MotoyaCedarW6";
  src: url("./assets/fonts/MotoyaCedarStd-W6.otf") format("opentype");
  font-display: swap;
}

@font-face {
  font-family: "HYFengShangHei85J";
  src: url("./assets/fonts/HYFengShangHei_85J.ttf") format("truetype");
  font-display: swap;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
}

button,
input,
textarea {
  font: inherit;
}

.coupon-app {
  display: grid;
  grid-template-columns: minmax(300px, 380px) 1fr;
  min-height: 100vh;
}

.coupon-sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 20px;
  background: var(--panel);
  border-right: 1px solid var(--line);
}

.coupon-brand {
  display: flex;
  gap: 12px;
  align-items: center;
  padding-bottom: 10px;
}

.coupon-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  color: #191919;
  background: var(--yellow);
  font-weight: 800;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 20px;
  line-height: 1.2;
}

h2 {
  margin-bottom: 12px;
  font-size: 14px;
}

.coupon-brand p,
.coupon-toolbar span,
.template-card small,
.field span {
  color: var(--muted);
}

.coupon-brand p {
  margin-top: 4px;
  font-size: 13px;
}

.coupon-panel {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfd;
}

.template-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.template-card {
  display: flex;
  min-height: 72px;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 4px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: #fff;
  cursor: pointer;
  text-align: left;
}

.template-card span {
  overflow-wrap: anywhere;
  font-weight: 750;
}

.template-card small {
  overflow-wrap: anywhere;
  font-size: 12px;
}

.template-card.active {
  border-color: var(--yellow-dark);
  background: #fff8d8;
}

.file-drop.compact {
  margin-top: 0;
}

.tag-picker {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 14px;
}

.tag-picker[hidden] {
  display: none;
}

.tag-option {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: #fff;
  cursor: pointer;
  font-weight: 750;
}

.tag-option.active {
  border-color: var(--yellow-dark);
  background: #ffce00;
}

.field {
  display: grid;
  gap: 7px;
  margin-top: 12px;
}

.field:first-of-type {
  margin-top: 0;
}

.field span {
  font-size: 13px;
  font-weight: 650;
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid #cfd8df;
  border-radius: 8px;
  color: var(--ink);
  background: #fff;
  outline: none;
}

.field input {
  min-height: 42px;
  padding: 0 12px;
}

.field textarea {
  min-height: 84px;
  padding: 10px 12px;
  resize: vertical;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--yellow-dark);
  box-shadow: 0 0 0 3px rgba(255, 206, 0, 0.18);
}

.action-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.action-row button {
  min-height: 42px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  color: #fff;
  background: var(--accent);
  cursor: pointer;
  font-weight: 750;
}

.action-row button:hover {
  background: #000;
}

.action-row button:disabled,
.action-row button:disabled:hover {
  border-color: #ccd5dc;
  color: #84919b;
  background: #e8edf1;
  cursor: not-allowed;
}

.coupon-workspace {
  display: grid;
  grid-template-rows: auto 1fr;
  min-width: 0;
}

.coupon-toolbar {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 14px 16px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.86);
}

.coupon-toolbar > span {
  grid-column: 2;
  grid-row: 1;
}

.toolbar-tag-picker {
  grid-column: 1 / -1;
  grid-row: 2;
  width: min(470px, 52vw);
  margin: 0;
}

.coupon-stage {
  display: grid;
  min-height: 0;
  padding: 28px;
  place-items: center;
}

.coupon-preview {
  display: grid;
  width: min(82vw, 620px);
  aspect-ratio: 1;
  place-items: center;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(45deg, #e8edf1 25%, transparent 25%),
    linear-gradient(-45deg, #e8edf1 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e8edf1 75%),
    linear-gradient(-45deg, transparent 75%, #e8edf1 75%);
  background-position:
    0 0,
    0 10px,
    10px -10px,
    -10px 0;
  background-size: 20px 20px;
}

.coupon-preview svg {
  display: block;
  width: min(100%, 520px);
  height: auto;
  filter: drop-shadow(0 18px 40px rgba(25, 25, 25, 0.14));
}

@media (max-width: 820px) {
  .coupon-app {
    grid-template-columns: 1fr;
  }

  .coupon-sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .coupon-stage {
    padding: 14px;
  }

  .toolbar-tag-picker {
    width: 100%;
  }

  .coupon-preview {
    width: 100%;
  }
}

@media (max-width: 420px) {
  .template-grid {
    grid-template-columns: 1fr;
  }
}