:root {
  --bg: #f3efe4;
  --ink: #191814;
  --muted: #6c6556;
  --line: #d8cdb7;
  --panel: rgba(255, 252, 242, 0.88);
  --accent: #0f766e;
  --accent-strong: #0b4f4a;
  --warn: #b45309;
  --ok: #15803d;
  --shadow: 0 24px 70px rgba(59, 48, 27, 0.16);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Avenir Next", "PingFang SC", "Hiragino Sans GB", sans-serif;
  background:
    radial-gradient(circle at 12% 12%, rgba(15, 118, 110, 0.16), transparent 28rem),
    radial-gradient(circle at 88% 18%, rgba(180, 83, 9, 0.12), transparent 25rem),
    linear-gradient(135deg, #f7f0dc 0%, var(--bg) 45%, #e7dcc6 100%);
}

input,
button,
textarea {
  font: inherit;
}

.shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0;
}

.hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: end;
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-strong);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 12px;
  font-size: clamp(42px, 8vw, 92px);
  line-height: 0.92;
  letter-spacing: -0.07em;
}

h2 {
  margin-bottom: 10px;
  font-size: 18px;
}

.lede {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.hero-card,
.panel,
.notice,
.log-panel {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  white-space: nowrap;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--warn);
  box-shadow: 0 0 0 6px rgba(180, 83, 9, 0.13);
}

.status-dot.ok {
  background: var(--ok);
  box-shadow: 0 0 0 6px rgba(21, 128, 61, 0.13);
}

.panel,
.notice,
.log-panel {
  padding: 24px;
  margin-bottom: 18px;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.proxy-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: end;
  margin-bottom: 18px;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  color: white;
  background: var(--accent);
  cursor: pointer;
  transition: transform 160ms ease, opacity 160ms ease, background 160ms ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
  background: var(--accent-strong);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

button.secondary {
  background: #8a3b12;
}

button.ghost {
  padding: 8px 12px;
  color: var(--accent-strong);
  background: rgba(15, 118, 110, 0.08);
}

.qr-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  align-items: stretch;
}

.qr-box {
  display: grid;
  place-items: center;
  min-height: 280px;
  border: 1px dashed #b9ad96;
  border-radius: 22px;
  background: #fffdf6;
  position: relative;
}

#qrCode {
  width: 240px;
  height: 240px;
  display: none;
}

#qrCode img,
#qrCode canvas {
  width: 240px;
  height: 240px;
  display: block;
}

#qrPlaceholder {
  position: absolute;
  color: var(--muted);
}

.details {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 700;
}

textarea {
  width: 100%;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px;
  color: var(--ink);
  background: #fffdf6;
}

input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 12px 14px;
  color: var(--ink);
  background: #fffdf6;
}

.notice {
  color: #5a3b11;
  background: rgba(255, 248, 226, 0.88);
}

.notice p {
  margin-bottom: 0;
  line-height: 1.7;
}

.log-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

#log {
  min-height: 180px;
  max-height: 360px;
  overflow: auto;
  margin: 0;
  padding: 18px;
  border-radius: 18px;
  color: #f7f0dc;
  background: #17140f;
  line-height: 1.6;
  white-space: pre-wrap;
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 22px, 1120px);
    padding: 28px 0;
  }

  .hero,
  .qr-layout,
  .proxy-row {
    grid-template-columns: 1fr;
  }

  .hero-card {
    justify-self: start;
  }
}