:root {
  --bg: #0c1017;
  --bg-elevated: #121820;
  --surface: rgba(22, 30, 42, 0.88);
  --surface-solid: #161e2a;
  --surface-2: #1e2836;
  --surface-hover: #243044;
  --text: #eef2f8;
  --text-secondary: #9aa8bc;
  --accent: #6ee16e;
  --accent-soft: rgba(110, 225, 110, 0.14);
  --accent-glow: rgba(110, 225, 110, 0.35);
  --danger: #ff7b84;
  --danger-soft: rgba(255, 123, 132, 0.14);
  --warn: #f0c674;
  --warn-soft: rgba(240, 198, 116, 0.14);
  --info: #7eb6ff;
  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.45);
  --font: "Plus Jakarta Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "JetBrains Mono", "Cascadia Code", Consolas, monospace;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font);
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 100% 80% at 50% -30%, rgba(110, 225, 110, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(126, 182, 255, 0.06), transparent),
    linear-gradient(180deg, var(--bg) 0%, #0a0e14 100%);
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black, transparent);
  pointer-events: none;
  z-index: 0;
}

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

a:hover {
  color: #9ef09e;
}

/* Topbar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.5rem;
  background: rgba(12, 16, 23, 0.75);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
}

.brand:hover {
  color: var(--text);
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, #5a9e3a 25%, transparent 25%),
    linear-gradient(225deg, #5a9e3a 25%, transparent 25%),
    linear-gradient(45deg, #5a9e3a 25%, transparent 25%),
    linear-gradient(315deg, #5a9e3a 25%, #8b6914 25%);
  background-size: 16px 16px;
  background-color: #6ee16e;
  box-shadow: 0 0 0 2px rgba(110, 225, 110, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  image-rendering: pixelated;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.topbar-meta {
  font-size: 0.78rem;
  white-space: nowrap;
}

/* Page */
.page {
  position: relative;
  z-index: 1;
  max-width: 1140px;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 3rem;
}

.hero {
  margin-bottom: 1.75rem;
}

.eyebrow {
  margin: 0 0 0.4rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.65rem, 4vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.subtitle {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.55;
  max-width: 38rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  padding: 0.5rem 0.95rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.btn:hover:not(:disabled) {
  background: var(--surface-hover);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(180deg, #7ae87a 0%, #4db84d 100%);
  border-color: rgba(110, 225, 110, 0.5);
  color: #0a120a;
  font-weight: 600;
  box-shadow: 0 2px 12px var(--accent-glow);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(180deg, #8ef08e 0%, #5dc95d 100%);
  border-color: var(--accent);
  color: #0a120a;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-ghost {
  text-decoration: none;
  background: transparent;
}

.btn-ghost:hover {
  background: var(--surface-2);
  color: var(--text);
}

.btn-sm {
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
}

.btn-copy.is-copied {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

.btn-icon {
  display: inline-block;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.refresh-icon {
  background: currentColor;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M21 12a9 9 0 1 1-2.64-6.36'/%3E%3Cpolyline points='21 3 21 9 15 9'/%3E%3C/svg%3E") center / contain no-repeat;
}

.copy-icon {
  background: currentColor;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Crect x='9' y='9' width='13' height='13' rx='2'/%3E%3Cpath d='M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1'/%3E%3C/svg%3E") center / contain no-repeat;
}

#btn-refresh.is-loading .refresh-icon {
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.meta {
  color: var(--text-secondary);
}

/* Summary */
.summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.summary-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  box-shadow: var(--shadow);
  transition: border-color var(--transition), transform var(--transition);
}

.summary-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.summary-card strong {
  display: block;
  font-size: 1.85rem;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.summary-card .label {
  display: block;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 500;
  margin-bottom: 0.2rem;
}

.summary-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  flex-shrink: 0;
  background: var(--surface-2);
  position: relative;
}

.summary-icon::after {
  content: "";
  position: absolute;
  inset: 50%;
  width: 10px;
  height: 10px;
  margin: -5px 0 0 -5px;
  border-radius: 50%;
  background: var(--text-secondary);
}

.summary-icon--online {
  background: var(--accent-soft);
}

.summary-icon--online::after {
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.summary-icon--offline {
  background: var(--danger-soft);
}

.summary-icon--offline::after {
  background: var(--danger);
}

.summary-card--online strong {
  color: var(--accent);
}

.summary-card--offline strong {
  color: var(--danger);
}

/* Grid status */
.grid-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 2.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.4; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.1); }
}

/* Server grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.25rem;
}

.grid.is-loading {
  opacity: 0.45;
  pointer-events: none;
}

/* Cards */
.card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  animation: card-in 0.45s ease backwards;
}

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

.card:hover {
  border-color: rgba(110, 225, 110, 0.22);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.card.is-offline {
  --card-accent: var(--danger);
}

.card.is-offline .card-header::before {
  background: linear-gradient(90deg, var(--danger), transparent);
}

.card:not(.is-offline) {
  --card-accent: var(--accent);
}

.card-header {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1.15rem 1.15rem 0.85rem;
}

.card-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--card-accent, var(--accent)), transparent 70%);
}

.card-identity {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  min-width: 0;
  flex: 1;
}

.favicon-wrap {
  position: relative;
  flex-shrink: 0;
}

.favicon {
  display: block;
  width: 48px;
  height: 48px;
  border-radius: 10px;
  image-rendering: pixelated;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
  border: 2px solid var(--border-strong);
}

.status-dot {
  position: absolute;
  bottom: -2px;
  right: -2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--surface-solid);
  background: var(--text-secondary);
}

.card:not(.is-offline) .status-dot {
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
  animation: pulse 2s ease-in-out infinite;
}

.card.is-offline .status-dot {
  background: var(--danger);
}

.card-titles {
  min-width: 0;
}

.name {
  margin: 0;
  font-size: 1.12rem;
  font-weight: 700;
  line-height: 1.3;
  word-break: break-word;
}

.desc {
  margin: 0.25rem 0 0;
  color: var(--text-secondary);
  font-size: 0.82rem;
  line-height: 1.4;
}

.desc:empty {
  display: none;
}

.badge {
  flex-shrink: 0;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  letter-spacing: 0.03em;
}

.badge.excellent,
.badge.good,
.badge.online {
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid rgba(110, 225, 110, 0.25);
}

.badge.fair {
  background: var(--warn-soft);
  color: var(--warn);
  border: 1px solid rgba(240, 198, 116, 0.25);
}

.badge.poor,
.badge.offline {
  background: var(--danger-soft);
  color: var(--danger);
  border: 1px solid rgba(255, 123, 132, 0.25);
}

.address-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 1.15rem 1rem;
  padding: 0.55rem 0.65rem;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.address {
  flex: 1;
  min-width: 0;
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--accent);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.stat-tiles {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.55rem;
  padding: 0 1.15rem;
  margin-bottom: 1rem;
}

.stat-tiles--no-rcon {
  grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 520px) {
  .stat-tiles--no-rcon {
    grid-template-columns: repeat(2, 1fr);
  }
}

.rcon-unavailable {
  margin: 0 1.15rem 1rem;
  padding: 0.6rem 0.75rem;
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--text-secondary);
  background: rgba(126, 182, 255, 0.08);
  border: 1px solid rgba(126, 182, 255, 0.18);
  border-radius: var(--radius-sm);
}

.rcon-unavailable::before {
  content: "ℹ ";
  color: var(--info);
}

.stat-tile {
  padding: 0.65rem 0.75rem;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.stat-tile:hover {
  background: rgba(0, 0, 0, 0.3);
}

.stat-tile-label {
  display: block;
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.2rem;
}

.stat-tile-value {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.stat-tile--latency.is-good .stat-tile-value { color: var(--accent); }
.stat-tile--latency.is-fair .stat-tile-value { color: var(--warn); }
.stat-tile--latency.is-poor .stat-tile-value { color: var(--danger); }

.meter-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 0 1.15rem;
  margin-bottom: 1rem;
}

.meter-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.35rem;
}

.meter-label {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.meter-value {
  font-size: 0.72rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.load-bar {
  height: 8px;
  background: rgba(0, 0, 0, 0.35);
  border-radius: 999px;
  overflow: hidden;
}

.load-bar.is-unavailable {
  opacity: 0.35;
}

.load-bar span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, #4db84d, var(--accent));
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.load-bar--capacity span {
  background: linear-gradient(90deg, #3d6a9e, var(--info));
}

.load-bar.is-high span {
  background: linear-gradient(90deg, #c45c5c, var(--danger));
}

.load-hint {
  margin: -0.35rem 1.15rem 0.75rem;
  padding: 0.55rem 0.7rem;
  font-size: 0.76rem;
  line-height: 1.45;
  color: var(--warn);
  background: var(--warn-soft);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(240, 198, 116, 0.15);
}

.card-footer {
  margin-top: auto;
  padding: 0.85rem 1.15rem 1.15rem;
  border-top: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.15);
}

.card-footer p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.card-footer p + p {
  margin-top: 0.35rem;
}

.motd::before {
  content: "MOTD · ";
  color: var(--text-secondary);
  opacity: 0.8;
}

.players-list::before {
  content: "玩家 · ";
  color: var(--text-secondary);
  opacity: 0.8;
}

.error {
  color: var(--danger) !important;
  padding: 0.45rem 0.55rem;
  background: var(--danger-soft);
  border-radius: 6px;
}

/* Toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 1.75rem;
  transform: translateX(-50%) translateY(16px) scale(0.96);
  background: var(--surface-solid);
  border: 1px solid rgba(110, 225, 110, 0.35);
  color: var(--text);
  padding: 0.7rem 1.15rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 200;
  max-width: min(90vw, 440px);
  text-align: center;
}

.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0) scale(1);
}

/* Footer */
.footer {
  margin-top: 2.5rem;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.82rem;
}

.footer a {
  font-weight: 500;
}

/* Empty */
.empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3.5rem 1.5rem;
  color: var(--text-secondary);
  background: var(--surface);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
}

.empty a {
  font-weight: 600;
}

/* Admin */
.admin-panel {
  max-width: 720px;
}

.login-box,
.admin-card {
  background: var(--surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
}

.login-box h2,
.admin-card h2 {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  font-weight: 700;
}

.form-row {
  margin-bottom: 0.85rem;
}

.form-row label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: rgba(110, 225, 110, 0.45);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.form-row textarea {
  min-height: 4rem;
  resize: vertical;
}

.form-row.inline {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.form-row.inline input[type="checkbox"] {
  width: auto;
  accent-color: var(--accent);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.btn-danger {
  border-color: rgba(255, 123, 132, 0.3);
  color: var(--danger);
}

.btn-danger:hover:not(:disabled) {
  background: var(--danger-soft);
}

.server-editor {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  margin-bottom: 1rem;
  background: rgba(0, 0, 0, 0.2);
}

.server-editor-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.server-editor-head strong {
  font-size: 0.95rem;
}

.rcon-details {
  margin-top: 0.75rem;
}

.rcon-details summary {
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  user-select: none;
}

.admin-msg {
  margin: 0 0 1rem;
  font-size: 0.85rem;
  color: var(--warn);
}

.admin-msg.is-error { color: var(--danger); }
.admin-msg.is-success { color: var(--accent); }

.admin-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

@media (max-width: 768px) {
  .topbar {
    padding: 0.75rem 1rem;
  }

  .topbar-meta {
    display: none;
  }

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

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

  .stat-tiles {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .brand-text {
    font-size: 0.95rem;
  }

  .hero h1 {
    font-size: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}