:root {
  --bg: #f5efe3;
  --ink: #1d2320;
  --muted: #6c746e;
  --card: rgba(255, 252, 245, 0.88);
  --line: rgba(29, 35, 32, 0.14);
  --accent: #c96c2f;
  --accent-2: #275c4f;
  --danger: #b43d32;
  --shadow: 0 24px 80px rgba(67, 45, 22, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at 12% 12%, rgba(201, 108, 47, 0.18), transparent 26rem),
    radial-gradient(circle at 85% 18%, rgba(39, 92, 79, 0.18), transparent 28rem),
    linear-gradient(135deg, #f8f0de 0%, #eef1e4 100%);
}

button,
input,
textarea {
  font: inherit;
}

button {
  border: 0;
  border-radius: 16px;
  padding: 0 22px;
  color: #fff;
  background: var(--accent-2);
  cursor: pointer;
  transition: transform 160ms ease, opacity 160ms ease, box-shadow 160ms ease;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(39, 92, 79, 0.18);
}

button:disabled {
  cursor: wait;
  opacity: 0.62;
  transform: none;
}

button.secondary {
  color: var(--accent-2);
  background: rgba(39, 92, 79, 0.11);
}

.shell {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0;
}

.hero {
  padding: 34px 0 24px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: -0.04em;
}

h1 {
  max-width: 760px;
  font-size: clamp(42px, 8vw, 86px);
  line-height: 0.92;
}

h2 {
  font-size: 28px;
}

.subtitle {
  max-width: 680px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.panel,
.result,
.history {
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 24px;
  background: var(--card);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.result,
.history {
  margin-top: 20px;
}

.form {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr auto;
  gap: 16px;
  align-items: end;
}

.form-admin {
  grid-template-columns: 1fr auto;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.64);
  outline: none;
}

input {
  height: 52px;
  padding: 0 16px;
}

input:focus,
textarea:focus {
  border-color: rgba(39, 92, 79, 0.5);
  box-shadow: 0 0 0 4px rgba(39, 92, 79, 0.1);
}

.form button {
  height: 52px;
}

.status {
  min-height: 24px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 14px;
}

.status.error {
  color: var(--danger);
}

.usage-box {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 16px;
  padding: 12px 14px;
  border: 1px solid rgba(39, 92, 79, 0.16);
  border-radius: 16px;
  background: rgba(39, 92, 79, 0.08);
  color: var(--accent-2);
  font-size: 14px;
}

.usage-box strong {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.result-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  margin-bottom: 18px;
}

.timer {
  display: grid;
  gap: 4px;
  min-width: 112px;
  border-radius: 20px;
  padding: 12px 16px;
  text-align: right;
  background: rgba(201, 108, 47, 0.1);
}

.timer span {
  color: var(--muted);
  font-size: 12px;
}

.timer strong {
  font-size: 24px;
}

.actions {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.actions button,
.history button {
  min-height: 42px;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 18px;
}

textarea {
  min-height: 320px;
  padding: 16px;
  resize: vertical;
  font-family: Consolas, "Courier New", monospace;
  font-size: 15px;
  line-height: 1.7;
}

.qr-card {
  display: grid;
  place-items: center;
  align-content: center;
  border: 1px dashed rgba(39, 92, 79, 0.28);
  border-radius: 24px;
  padding: 20px;
  text-align: center;
  background: rgba(255, 255, 255, 0.42);
}

.qr-card p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.qr-title {
  margin: 0;
  color: var(--ink);
  font-size: 18px;
  font-weight: 800;
}

.qr-card code {
  padding: 2px 6px;
  border-radius: 8px;
  background: rgba(39, 92, 79, 0.08);
}

.qr-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.proxy-card {
  display: grid;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.6);
}

.proxy-card-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.proxy-card strong {
  font-size: 16px;
}

.proxy-card code {
  display: block;
  word-break: break-all;
  white-space: pre-wrap;
  font-family: Consolas, "Courier New", monospace;
  font-size: 13px;
  line-height: 1.7;
}

.proxy-card img {
  width: 100%;
  max-width: 240px;
  justify-self: center;
  border-radius: 18px;
  background: #fff;
}

.proxy-raw {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
  word-break: break-all;
}

.history-list {
  display: grid;
  gap: 12px;
}

.admin-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.admin-card {
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.58);
}

.admin-card-header {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}

.admin-card strong {
  font-size: 16px;
}

.admin-card span {
  color: var(--accent-2);
  font-weight: 700;
}

.admin-card code {
  white-space: pre-wrap;
  word-break: break-all;
  font-family: Consolas, "Courier New", monospace;
  font-size: 13px;
}

.history-item {
  display: grid;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.42);
}

.history-item code {
  white-space: pre-wrap;
  word-break: break-all;
  font-family: Consolas, "Courier New", monospace;
  font-size: 13px;
}

.history-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
}

.hidden {
  display: none;
}

@media (max-width: 820px) {
  .shell {
    width: min(100% - 20px, 1080px);
    padding: 24px 0;
  }

  .form,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .result-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .timer {
    width: 100%;
    text-align: left;
  }

  .actions {
    flex-wrap: wrap;
  }
}