:root {
  --bg: #0d1117;
  --bg-soft: #151b23;
  --panel: rgba(16, 22, 31, 0.82);
  --line: rgba(255, 255, 255, 0.1);
  --text: #eef4ff;
  --muted: #9fb0c5;
  --accent: #62d0ff;
  --accent-strong: #1199d6;
  --danger: #ff8a80;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(98, 208, 255, 0.14), transparent 30%),
    radial-gradient(circle at bottom right, rgba(17, 153, 214, 0.18), transparent 28%),
    linear-gradient(135deg, #071018 0%, #0d1117 46%, #121925 100%);
  color: var(--text);
}

.shell {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 56px;
}

.hero {
  max-width: 720px;
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 12px;
}

h1 {
  margin: 0;
  font-size: clamp(38px, 8vw, 72px);
  line-height: 0.95;
}

.lead {
  margin: 16px 0 0;
  max-width: 640px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.panel {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  gap: 22px;
}

.hidden {
  display: none !important;
}

.auth-card,
.panel-card,
.form,
.recent {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.auth-card,
.panel-card {
  padding: 24px;
}

.form {
  padding: 24px;
}

.dashboard {
  display: grid;
  gap: 22px;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-end;
}

.toolbar h2,
.card-head h2,
.card-head h3 {
  margin: 0;
}

.toolbar-note,
.card-head p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 400px);
  gap: 22px;
}

.card-head {
  margin-bottom: 18px;
}

.form label {
  display: block;
  margin-bottom: 16px;
}

.form span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 14px;
}

.form input,
.form select {
  width: 100%;
  height: 50px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  outline: none;
}

.form input:focus,
.form select:focus {
  border-color: rgba(98, 208, 255, 0.7);
  box-shadow: 0 0 0 4px rgba(98, 208, 255, 0.14);
}

.toggle {
  display: flex;
  align-items: center;
  gap: 12px;
}

.toggle input {
  width: 18px;
  height: 18px;
  margin: 0;
}

.toggle span {
  margin: 0;
  color: var(--text);
}

.hint {
  margin: 0 0 18px;
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(98, 208, 255, 0.08);
  color: #cfeeff;
  line-height: 1.6;
}

.hint.warn {
  background: rgba(255, 138, 128, 0.12);
  color: #ffd2cd;
}

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

.primary,
.secondary,
#clear-history {
  appearance: none;
  border: 0;
  border-radius: 14px;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.18s ease, opacity 0.18s ease, background 0.18s ease;
}

.primary,
.secondary {
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
}

.primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #04111a;
  font-weight: 700;
}

.secondary,
#clear-history {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.primary:hover,
.secondary:hover,
#clear-history:hover {
  transform: translateY(-1px);
  opacity: 0.95;
}

.small {
  height: 38px;
  padding: 0 14px;
}

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

.recent {
  padding: 22px;
}

.result-panel {
  margin-top: 22px;
  padding: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.result-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.result-head h2 {
  margin: 0;
  font-size: 20px;
}

.copy-status {
  color: var(--accent);
  font-size: 13px;
}

#result-uri {
  width: 100%;
  min-height: 120px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  resize: vertical;
  outline: none;
}

.result-tip {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.result-tip code {
  color: #d8ebff;
}

.recent-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.recent-head h2 {
  margin: 0;
  font-size: 20px;
}

#clear-history {
  height: 38px;
  padding: 0 12px;
}

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

.recent-item {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
}

.recent-item strong {
  display: block;
  margin-bottom: 6px;
  font-size: 15px;
}

.recent-item p {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 13px;
}

.recent-item button {
  height: 36px;
  padding: 0 12px;
  border: 0;
  border-radius: 12px;
  background: rgba(98, 208, 255, 0.12);
  color: var(--text);
  cursor: pointer;
}

.server-list {
  display: grid;
  gap: 14px;
}

.server-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
}

.server-card-head strong {
  display: block;
  font-size: 17px;
}

.server-card-head p,
.server-note {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.inline-message {
  min-height: 22px;
  margin: 14px 0 0;
  color: var(--accent);
}

.modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(5, 10, 16, 0.68);
}

.modal-card {
  width: min(560px, 100%);
  padding: 24px;
  background: #10161f;
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

textarea {
  width: 100%;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  outline: none;
}

.empty {
  color: var(--muted);
  line-height: 1.7;
}

@media (max-width: 920px) {
  .panel,
  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 20px, 1100px);
    padding: 28px 0 32px;
  }

  .form,
  .recent,
  .auth-card,
  .panel-card,
  .result-panel,
  .modal-card {
    padding: 18px;
    border-radius: 18px;
  }

  .actions {
    flex-direction: column;
  }

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