:root {
  --bg: #f6f8fb;
  --card: #ffffff;
  --text: #1f2430;
  --muted: #5b6475;
  --line: #e5e9f0;
  --accent: #0f6ef5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at top right, #e4efff 0, transparent 35%), var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "PingFang SC", sans-serif;
}

a {
  color: var(--accent);
  text-decoration: none;
}

.container {
  max-width: 1100px;
  margin: 24px auto;
  padding: 0 16px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--card);
  border-bottom: 1px solid var(--line);
  padding: 12px 16px;
}

.topbar nav {
  display: flex;
  gap: 12px;
}

.auth-card {
  max-width: 380px;
  margin: 90px auto;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
}

.form-grid {
  display: grid;
  gap: 10px;
}

input,
textarea,
select,
button {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}

button {
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  border: none;
}

.alert {
  background: #ffe9ea;
  color: #b21f2d;
  border: 1px solid #ffcfd4;
  border-radius: 8px;
  padding: 8px 10px;
  margin-bottom: 12px;
}

.notice {
  background: #e9fff0;
  color: #166534;
  border: 1px solid #bdecc9;
  border-radius: 8px;
  padding: 8px 10px;
  margin-bottom: 12px;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  margin-bottom: 14px;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
}

.checkbox input {
  width: 18px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.stats article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
}

.stats p {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}

th,
td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  padding: 10px;
  vertical-align: top;
}

th {
  background: #f4f7fd;
}

.tag {
  display: inline-block;
  border-radius: 999px;
  padding: 2px 8px;
  background: #e8f0ff;
  color: #00327a;
  font-size: 12px;
}

pre {
  background: #101720;
  color: #d4f4ff;
  border-radius: 10px;
  padding: 12px;
  overflow: auto;
}

.actions {
  margin: 12px 0;
}

.home-links {
  margin-bottom: 18px;
}

.home-form {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.home-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.home-form .full {
  grid-column: 1 / -1;
}

.muted {
  color: var(--muted);
}

.btn-link {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  padding: 10px 12px;
}

.qr-preview {
  display: block;
  margin-bottom: 12px;
  width: 220px;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px;
  background: #fff;
}

@media (max-width: 700px) {
  .topbar {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }
}

/* Landing page */
.landing-bg-shape {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(42rem 24rem at 84% -4%, rgba(26, 63, 118, 0.2), transparent 68%),
    radial-gradient(34rem 18rem at -10% 20%, rgba(81, 108, 149, 0.12), transparent 72%);
}

.landing-shell {
  width: min(1120px, 100% - 48px);
  margin: 0 auto;
  padding: 28px 0 44px;
  font-family: "Avenir Next", "PingFang SC", "Noto Sans SC", sans-serif;
}

.landing-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0 18px;
}

.landing-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 18px;
}

.landing-brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(140deg, #1a3f71, #2f629f);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  letter-spacing: 0.06em;
}

.landing-nav {
  display: inline-flex;
  gap: 16px;
}

.landing-nav a {
  color: #3c4e67;
  font-weight: 500;
}

.landing-nav a:hover {
  color: #224f88;
}

.landing-hero {
  margin-top: 8px;
  background: linear-gradient(160deg, #ffffff 0%, #f6f8fc 56%, #f1f4fa 100%);
  border: 1px solid #d8e0ec;
  border-radius: 22px;
  box-shadow: 0 28px 60px -42px rgba(20, 37, 61, 0.45);
  padding: 30px;
  display: grid;
  grid-template-columns: 1.45fr 1fr;
  gap: 22px;
}

.landing-kicker {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: #355c8b;
}

.landing-slogan {
  margin-top: 10px !important;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #264a78 !important;
}

.landing-hero h1 {
  margin: 0;
  font-size: clamp(30px, 4.4vw, 48px);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.landing-hero p {
  margin: 16px 0 0;
  max-width: 62ch;
  color: #4f5a6b;
  line-height: 1.72;
}

.landing-actions {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.landing-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  padding: 11px 16px;
  font-weight: 600;
  border: 1px solid transparent;
}

.landing-btn-primary {
  color: #fff;
  background: linear-gradient(130deg, #1d4d89, #2a5ea1);
}

.landing-btn-primary:hover {
  filter: brightness(1.05);
}

.landing-btn-ghost {
  color: #294266;
  background: #eef2f8;
  border-color: #d2dbe8;
}

.landing-status-card {
  background: #ffffff;
  border: 1px solid #d7e0ec;
  border-radius: 16px;
  padding: 16px;
}

.landing-status-card h2 {
  margin: 0 0 10px;
  font-size: 16px;
}

.landing-status-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.landing-status-card li {
  display: grid;
  gap: 8px;
  grid-template-columns: 86px 1fr;
  align-items: baseline;
  border-bottom: 1px dashed #e1e8f2;
  padding: 10px 0;
}

.landing-status-card li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.landing-status-card span {
  color: #667488;
  font-size: 13px;
}

.landing-status-card strong {
  color: #1b2432;
}

.landing-status-card code {
  font-size: 12px;
  color: #28496e;
  word-break: break-all;
}

.landing-grid {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.landing-card {
  background: #fff;
  border: 1px solid #dde5f0;
  border-radius: 14px;
  padding: 16px;
}

.landing-card h3 {
  margin: 0;
  font-size: 18px;
}

.landing-card p {
  margin: 8px 0 0;
  color: #536174;
  line-height: 1.7;
}

.landing-steps {
  margin-top: 20px;
  background: #fff;
  border: 1px solid #dde5f0;
  border-radius: 16px;
  padding: 20px;
}

.landing-steps h2 {
  margin: 0;
  font-size: 20px;
}

.landing-steps ol {
  margin: 12px 0 0;
  padding-left: 20px;
}

.landing-steps li {
  margin: 8px 0;
  color: #405065;
  line-height: 1.7;
}

.landing-footer {
  margin-top: 18px;
  padding-top: 10px;
  color: #7a8798;
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  border-top: 1px solid #dfe8f3;
}

.landing-reveal {
  animation: landing-rise 0.8s ease both;
}

.landing-shell .landing-reveal:nth-of-type(2) {
  animation-delay: 0.08s;
}

.landing-shell .landing-reveal:nth-of-type(3) {
  animation-delay: 0.14s;
}

.landing-shell .landing-reveal:nth-of-type(4) {
  animation-delay: 0.2s;
}

@keyframes landing-rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 920px) {
  .landing-shell {
    width: min(1120px, 100% - 28px);
    padding: 18px 0 28px;
  }

  .landing-header {
    padding-bottom: 14px;
  }

  .landing-hero {
    grid-template-columns: 1fr;
    padding: 22px;
  }

  .landing-grid {
    grid-template-columns: 1fr;
  }

  .landing-footer {
    flex-direction: column;
    gap: 6px;
  }
}