@font-face {
  font-family: "XiaoBoXiongMao";
  src: url("./assets/HYXiaoBoXiongMaoTiW-2.ttf") format("truetype");
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light;
  --paper: #ffffff;
  --paper-soft: #f8fbff;
  --surface: #ffffff;
  --surface-raised: #f5faff;
  --ink: #2d3a55;
  --ink-muted: #5e6f8a;
  --line: #d8e3f0;
  --line-strong: #a8bdd6;
  --mineral: #6b8ec6;
  --mineral-soft: #e3effc;
  --accent: #e8a060;
  --accent-strong: #c47d3d;
  --accent-soft: #fce8d5;
  --shadow: 0 24px 80px rgb(45 72 118 / 0.12);
  --radius: 20px;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--paper);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  font-family: "Avenir Next", "SF Pro Display", "Segoe UI", system-ui, sans-serif;
  background:
    radial-gradient(circle at 12% 8%, rgb(227 239 252 / 0.8), transparent 28rem),
    radial-gradient(circle at 100% 100%, rgb(252 232 213 / 0.78), transparent 26rem),
    linear-gradient(135deg, #edf3f9 0%, #fffdf8 60%, #fff8ef 100%);
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.shell {
  width: min(1160px, calc(100vw - 56px));
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  align-content: center;
  gap: 18px;
  padding: 56px 0;
}

.panel,
.help {
  border: 1px solid var(--line);
  background: rgb(255 255 255 / 0.86);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px) saturate(130%);
}

.panel {
  display: grid;
  gap: 18px;
  padding: 30px;
  border-radius: 24px;
}

.hero {
  display: grid;
  gap: 18px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 100% 0, rgb(232 160 96 / 0.16), transparent 13rem),
    linear-gradient(180deg, var(--surface), var(--paper-soft));
  box-shadow: 0 12px 40px rgb(45 72 118 / 0.08);
}

.brand-row {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 16px;
}

.brand-symbol {
  display: inline-flex;
  width: 76px;
  height: 76px;
  flex: 0 0 auto;
  padding: 2px;
  filter: drop-shadow(0 16px 26px rgb(45 72 118 / 0.12));
}

.brand-symbol img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-copy {
  min-width: 0;
}

.eyebrow,
.card-label {
  margin: 0;
  color: var(--accent-strong);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  color: var(--ink);
  font-family: "XiaoBoXiongMao", "HYXiaoBoXiongMaoTiW", "Avenir Next", system-ui, sans-serif;
  font-size: clamp(38px, 5vw, 58px);
  font-weight: normal;
  font-synthesis: none;
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 10px;
  color: var(--ink);
  font-size: 24px;
  line-height: 1.16;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--ink-muted);
  font-size: 15px;
  line-height: 1.65;
}

.workbench {
  display: grid;
  grid-template-columns: minmax(360px, 0.94fr) minmax(390px, 1.06fr);
  gap: 16px;
  align-items: stretch;
}

.drop-card,
.action-card {
  border: 1px solid var(--line);
  background: var(--surface-raised);
  box-shadow: 0 12px 40px rgb(45 72 118 / 0.08);
}

.drop-card {
  min-height: 332px;
  padding: 34px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  overflow: hidden;
  border-width: 2px;
  border-style: dashed;
  border-color: var(--line-strong);
  border-radius: var(--radius);
  text-align: center;
  background:
    radial-gradient(circle at 16% 18%, var(--mineral-soft), transparent 30%),
    var(--surface);
}

.drop-mark {
  width: 76px;
  height: 76px;
  margin-bottom: 8px;
  background: url("./assets/bondie-logo.png") center / contain no-repeat;
  opacity: 0.96;
}

.drop-line {
  max-width: 560px;
  color: var(--ink);
  font-size: 20px;
  font-weight: 750;
  line-height: 1.45;
}

.drop-subline,
.action-card p,
.help ol {
  color: var(--ink-muted);
  font-size: 14px;
  line-height: 1.55;
}

.action-card {
  min-height: 332px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
  border-radius: calc(var(--radius) - 4px);
  background:
    radial-gradient(circle at 100% 0, rgb(232 160 96 / 0.14), transparent 18rem),
    var(--surface-raised);
}

.card-label {
  margin-bottom: 8px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.primary,
.secondary {
  min-height: 42px;
  border-radius: 999px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: inherit;
  font-weight: 750;
  letter-spacing: 0;
  text-decoration: none;
  cursor: pointer;
  transition:
    border-color 140ms ease,
    background 140ms ease,
    color 140ms ease,
    transform 140ms ease,
    opacity 140ms ease;
}

.primary {
  min-width: 164px;
  border: 1px solid var(--accent);
  color: #fff8ef;
  background: var(--accent);
  box-shadow: 0 14px 36px rgb(179 69 60 / 0.18);
}

.primary:hover {
  border-color: var(--accent-strong);
  background: var(--accent-strong);
}

.secondary {
  border: 1px solid var(--line-strong);
  color: var(--ink);
  background: rgb(245 250 255 / 0.74);
}

.secondary:hover {
  border-color: var(--accent);
  color: var(--accent-strong);
}

.primary:active,
.secondary:active {
  transform: translateY(1px);
}

.primary.is-disabled {
  pointer-events: none;
  opacity: 0.55;
}

.status {
  position: relative;
  min-height: 22px;
  margin: 0;
  padding-left: 16px;
  color: var(--ink-muted);
  font-size: 13px;
}

.status::before {
  content: "";
  position: absolute;
  top: 0.58em;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.help {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 20px 24px;
  border-radius: 18px;
}

.help h2 {
  margin: 0;
  font-size: 18px;
}

.help ol {
  margin: 0;
  padding-left: 22px;
}

.help li + li {
  margin-top: 6px;
}

@media (max-width: 820px) {
  .shell {
    width: min(100%, calc(100vw - 24px));
    padding: 24px 0;
  }

  .panel {
    padding: 16px;
  }

  .hero {
    padding: 16px;
  }

  .brand-symbol {
    width: 58px;
    height: 58px;
  }

  h1 {
    font-size: clamp(30px, 9vw, 40px);
  }

  .workbench,
  .help {
    grid-template-columns: 1fr;
  }

  .drop-card,
  .action-card {
    min-height: 220px;
    padding: 20px 16px;
  }

  .drop-line {
    font-size: 17px;
  }

  .actions {
    flex-direction: column;
  }

  .primary,
  .secondary {
    width: 100%;
  }
}