:root {
  --bg-color: #09090b;
  --card-bg: rgba(24, 24, 27, 0.65);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.5), 0 0 2px rgba(255, 255, 255, 0.05) inset;
  --text-main: #f4f4f5;
  --text-secondary: #a1a1aa;
  --item-bg: rgba(255, 255, 255, 0.03);
  --item-bg-hover: rgba(255, 255, 255, 0.06);
  --item-border: rgba(255, 255, 255, 0.05);
  --icon-bg: rgba(255, 255, 255, 0.05);
  --input-bg: rgba(0, 0, 0, 0.3);
  --divider-color: rgba(255, 255, 255, 0.15);
  --divider-line: rgba(255, 255, 255, 0.08);
  --glow-1: rgba(0, 113, 227, 0.15);
  --glow-2: rgba(34, 211, 238, 0.12);
  --glow-3: rgba(168, 85, 247, 0.1);
  --accent-blue: #0a84ff;
  --accent-cyan: #30d158;
  --accent-cyan-light: rgba(10, 132, 255, 0.2);
  --success-green: #30d158;
  --danger-red: #ff453a;
  --border-radius-lg: 28px;
  --border-radius-sm: 18px;
  --transition-base: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
  --font-stack: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Helvetica Neue", Roboto, sans-serif;
}

body[data-theme="light"] {
  --bg-color: #f2f4f8;
  --card-bg: rgba(255, 255, 255, 0.85);
  --card-border: rgba(255, 255, 255, 1);
  --card-shadow: 0 10px 30px -5px rgba(12, 43, 100, 0.08), 0 4px 10px -3px rgba(12, 43, 100, 0.04),
    0 0 1px rgba(0, 0, 0, 0.05);
  --text-main: #1d1d1f;
  --text-secondary: #86868b;
  --item-bg: #ffffff;
  --item-bg-hover: #f8fafd;
  --item-border: rgba(0, 0, 0, 0.04);
  --icon-bg: #f5f5f7;
  --input-bg: #ffffff;
  --divider-color: #86868b;
  --divider-line: #e5e5ea;
  --glow-1: rgba(0, 113, 227, 0.05);
  --glow-2: rgba(34, 211, 238, 0.05);
  --glow-3: rgba(168, 85, 247, 0.03);
  --accent-blue: #0071e3;
  --accent-cyan: #0071e3;
  --accent-cyan-light: rgba(0, 113, 227, 0.1);
  --success-green: #34c759;
  --danger-red: #ff3b30;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  outline: none;
}

html,
body,
#app {
  min-height: 100%;
}

body {
  font-family: var(--font-stack);
  background-color: var(--bg-color);
  color: var(--text-main);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px 20px 100px;
  position: relative;
  overflow-x: hidden;
  overflow-y: auto;
  transition: background-color 0.5s ease, color 0.5s ease;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: -25%;
  width: 150%;
  height: 150%;
  z-index: -1;
  background-image: radial-gradient(circle at 20% 20%, var(--glow-1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, var(--glow-2) 0%, transparent 40%),
    radial-gradient(circle at 50% 80%, var(--glow-3) 0%, transparent 60%);
  animation: backgroundMove 25s infinite alternate ease-in-out;
}

body,
button,
input {
  font: inherit;
}

button {
  border: 0;
  color: inherit;
}

a {
  color: inherit;
}

.app-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  line-height: 1;
}

.app-icon svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.container {
  width: 100%;
  max-width: 1000px;
  margin: auto;
  position: relative;
  z-index: 1;
  transition: var(--transition-base);
}

.header {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 80px;
  margin-top: 30px;
  margin-bottom: 40px;
  text-align: center;
}

.header h1 {
  font-size: 42px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 8px;
}

.header p {
  color: var(--text-secondary);
  font-size: 16px;
  font-weight: 400;
  letter-spacing: 0.5px;
}

.theme-toggle {
  position: absolute;
  top: 50%;
  right: 0;
  width: 44px;
  height: 44px;
  margin-top: -22px;
  border-radius: 50%;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  box-shadow: var(--card-shadow);
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: var(--transition-base);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.theme-toggle:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 25px rgba(0, 113, 227, 0.15);
}

.main-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 40px 30px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--card-shadow);
  transition: var(--transition-base);
  backdrop-filter: blur(40px) saturate(150%);
  -webkit-backdrop-filter: blur(40px) saturate(150%);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
  opacity: 0.5;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0));
}

.section-title {
  margin-bottom: 25px;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.local-device-name {
  margin-top: -10px;
  margin-bottom: 18px;
  text-align: center;
  font-size: 13px;
  color: var(--text-secondary);
}

.local-device-name strong {
  color: var(--text-main);
  font-weight: 600;
}

.radar-container,
.waiting-area {
  flex: 1;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.radar {
  position: relative;
  width: 80px;
  height: 80px;
  margin-bottom: 25px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  background: var(--accent-cyan-light);
  border: 1px solid rgba(0, 113, 227, 0.1);
  box-shadow: 0 0 20px var(--accent-cyan-light);
}

.radar::before,
.radar::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--accent-blue);
  opacity: 0;
  animation: ripplePro 3s infinite cubic-bezier(0.1, 0.8, 0.3, 1);
}

.radar::before {
  animation-delay: 1.5s;
}

.radar-icon {
  font-size: 36px;
  color: var(--accent-blue);
}

.scan-status,
.waiting-subtitle {
  margin-top: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.device-list {
  width: 100%;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.device-item {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  padding: 16px 20px;
  background: var(--item-bg);
  border: 1px solid var(--item-border);
  border-radius: var(--border-radius-sm);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
  cursor: pointer;
  color: var(--text-main);
  text-align: left;
  transition: var(--transition-base);
}

.device-item:hover {
  background: var(--item-bg-hover);
  transform: translateY(-2px);
  border-color: rgba(0, 113, 227, 0.3);
  box-shadow: 0 8px 20px -5px rgba(0, 113, 227, 0.15), 0 0 0 1px rgba(0, 113, 227, 0.1) inset;
}

.device-icon {
  width: 48px;
  height: 48px;
  margin-right: 16px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  background: var(--icon-bg);
  border: 1px solid var(--item-border);
  transition: var(--transition-base);
}

.device-info {
  flex: 1;
}

.device-status-beacon {
  position: absolute;
  top: 50%;
  right: 22px;
  width: 14px;
  height: 14px;
  transform: translateY(-50%);
  pointer-events: none;
}

.device-status-dot,
.device-status-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
}

.device-status-dot {
  inset: 3px;
  background: var(--accent-blue);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.75), 0 0 14px rgba(10, 132, 255, 0.28);
}

.device-status-ring {
  border: 2px solid rgba(10, 132, 255, 0.22);
  opacity: 0;
  transform: scale(0.7);
  animation: deviceBeaconPing 2s infinite cubic-bezier(0.16, 0.84, 0.44, 1);
}

.device-status-ring-delay {
  animation-delay: 1s;
}

.device-icon .app-icon {
  position: relative;
  z-index: 1;
  color: var(--text-main);
}

.device-item:hover .device-icon {
  background: var(--accent-cyan-light);
  border-color: transparent;
}

.device-item:hover .device-icon .app-icon {
  color: var(--accent-blue);
}

.device-item:hover .device-status-dot {
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.85), 0 0 18px rgba(10, 132, 255, 0.36);
}

.device-item:hover .device-status-ring {
  border-color: rgba(10, 132, 255, 0.3);
  animation-duration: 1.4s;
}

.device-info h4 {
  margin-bottom: 4px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
}

.device-info p {
  font-size: 13px;
  color: var(--text-secondary);
}

.room-action-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.btn-create {
  width: 100%;
  margin-bottom: 25px;
  padding: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--item-bg);
  color: var(--accent-blue);
  border: 1px solid var(--item-border);
  border-radius: var(--border-radius-sm);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
}

.btn-create:hover {
  background: var(--item-bg-hover);
  border-color: rgba(0, 113, 227, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -5px rgba(0, 113, 227, 0.15);
}

.divider {
  position: relative;
  margin-bottom: 25px;
  text-align: center;
  color: var(--divider-color);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.divider::before,
.divider::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 35%;
  height: 1px;
  background: var(--divider-line);
}

.divider::before {
  left: 0;
}

.divider::after {
  right: 0;
}

.room-input-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pending-downloads {
  margin-top: 22px;
  padding: 16px;
  border: 1px solid var(--item-border);
  border-radius: var(--border-radius-sm);
  background: var(--item-bg);
  max-height: 236px;
  overflow-y: auto;
  padding-right: 10px;
}

.pending-downloads::-webkit-scrollbar {
  width: 6px;
}

.pending-downloads::-webkit-scrollbar-thumb {
  background: var(--divider-color);
  border-radius: 999px;
}

.pending-downloads-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--item-bg);
  padding-bottom: 8px;
}

.pending-download-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
  padding: 12px 14px;
  border-radius: 16px;
  background: var(--input-bg);
  border: 1px solid var(--item-border);
  text-decoration: none;
  transition: var(--transition-base);
}

.pending-download-item + .pending-download-item {
  margin-top: 10px;
}

.pending-download-item:hover {
  background: var(--item-bg-hover);
  border-color: rgba(0, 113, 227, 0.25);
  color: var(--accent-blue);
}

.pending-download-copy {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.pending-download-copy strong {
  display: -webkit-box;
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: normal;
  overflow-wrap: anywhere;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-height: 1.35;
  max-height: calc(1.35em * 2);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}

.pending-download-copy p {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12px;
  color: var(--text-secondary);
}

.pending-download-icon {
  flex: none;
}

input.room-code,
.text-input-group input,
.text-input-group textarea {
  width: 100%;
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--item-border);
  border-radius: var(--border-radius-sm);
  background: var(--input-bg);
  color: var(--text-main);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.02);
  transition: var(--transition-base);
}

input.room-code {
  font-size: 24px;
  font-weight: 700;
  text-align: center;
  letter-spacing: 8px;
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
}

input.room-code:focus,
.text-input-group input:focus,
.text-input-group textarea:focus {
  background: var(--item-bg);
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px var(--accent-cyan-light);
}

input.room-code::placeholder {
  letter-spacing: normal;
  font-size: 16px;
  font-weight: 400;
  color: var(--text-secondary);
  opacity: 0.6;
}

.btn-primary {
  width: 100%;
  padding: 18px;
  background: var(--accent-blue);
  color: #fff;
  border-radius: var(--border-radius-sm);
  box-shadow: 0 4px 12px rgba(0, 113, 227, 0.3);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
}

.btn-primary:hover,
.text-input-group button:hover {
  background: #0066cc;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 113, 227, 0.4);
}

.huge-code {
  margin: 15px 0 25px;
  padding: 15px 30px;
  font-size: 56px;
  font-weight: 800;
  color: var(--accent-blue);
  letter-spacing: 10px;
  font-family: ui-monospace, monospace;
  border-radius: 20px;
  border: 1px solid rgba(0, 113, 227, 0.2);
  background: var(--accent-cyan-light);
}

.spinner {
  width: 28px;
  height: 28px;
  margin: 0 auto 15px;
  border-radius: 50%;
  border: 3px solid var(--item-border);
  border-top-color: var(--accent-blue);
  animation: spin 0.8s linear infinite;
}

.waiting-tip {
  font-size: 14px;
  font-weight: 500;
  color: var(--accent-blue);
}

.btn-cancel {
  margin-top: 25px;
  background: none;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition-base);
}

.btn-cancel:hover {
  color: var(--text-main);
}

.transfer-panel,
.admin-panel {
  width: 100%;
  margin: 0 auto;
  opacity: 0;
  transform: scale(0.95);
  animation: showPanelPro 0.5s forwards cubic-bezier(0.2, 0.8, 0.2, 1);
}

.transfer-panel {
  max-width: 650px;
}

.transfer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--divider-line);
}

.connected-to h2 {
  margin-bottom: 4px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
}

.connected-to p {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--success-green);
}

.connection-hint {
  display: block;
  margin-top: 8px;
  max-width: 42ch;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-secondary);
}

.close-btn {
  width: 36px;
  height: 36px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  background: var(--icon-bg);
  border: 1px solid var(--item-border);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-base);
}

.close-btn:hover {
  background: var(--item-bg-hover);
  color: var(--text-main);
  transform: rotate(90deg);
}

.drop-zone {
  padding: 40px 30px;
  margin-bottom: 20px;
  text-align: center;
  background: var(--input-bg);
  border: 2px dashed var(--divider-color);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: var(--transition-base);
}

.drop-zone:hover,
.drop-zone-active {
  border-color: var(--accent-blue);
  background-color: var(--accent-cyan-light);
}

.drop-zone-icon {
  margin-bottom: 12px;
  font-size: 42px;
  color: var(--text-secondary);
  transition: var(--transition-base);
}

.drop-zone:hover .drop-zone-icon,
.drop-zone-active .drop-zone-icon {
  transform: translateY(-5px);
  color: var(--accent-blue);
}

.drop-zone-text {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
}

.text-input-group {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}

.text-input-group input {
  flex: 1;
  padding: 16px 20px;
  font-size: 15px;
}

.text-input-group button {
  width: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-sm);
  background: var(--accent-blue);
  color: #fff;
  box-shadow: 0 4px 12px rgba(0, 113, 227, 0.3);
  cursor: pointer;
  transition: var(--transition-base);
}

.batch-actions {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 12px;
  height: 0;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-base);
}

.batch-actions.active {
  height: 36px;
  overflow: visible;
  opacity: 1;
  pointer-events: auto;
}

.btn-small-primary {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--item-bg);
  color: var(--text-main);
  border: 1px solid var(--item-border);
  border-radius: 12px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
}

.btn-small-primary:hover {
  background: var(--item-bg-hover);
  color: var(--accent-blue);
  border-color: rgba(0, 113, 227, 0.3);
  transform: translateY(-1px);
}

.batch-progress-container {
  max-height: 280px;
  overflow-y: auto;
  padding-right: 8px;
  padding-bottom: 10px;
  text-align: left;
}

.batch-progress-container::-webkit-scrollbar {
  width: 6px;
}

.batch-progress-container::-webkit-scrollbar-thumb {
  background: var(--divider-color);
  border-radius: 4px;
}

.batch-item {
  margin-bottom: 12px;
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
  padding: 16px;
  background: var(--item-bg);
  border: 1px solid var(--item-border);
  border-radius: var(--border-radius-sm);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
  transition: all 0.3s ease;
}

.batch-item:hover {
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

body[data-theme="dark"] .batch-item:hover {
  border-color: rgba(255, 255, 255, 0.1);
}

.file-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  min-width: 0;
  margin-bottom: 12px;
  font-size: 14px;
}

.file-info-left {
  flex: 1;
  min-width: 0;
  max-width: 60%;
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
}

.file-icon-wrapper {
  flex: none;
  width: 32px;
  height: 32px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 8px;
  background: var(--icon-bg);
  color: var(--accent-blue);
}

.file-name {
  display: -webkit-box;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: normal;
  overflow-wrap: anywhere;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-height: 1.35;
  max-height: calc(1.35em * 2);
  font-weight: 500;
  color: var(--text-main);
}

.file-info-right {
  display: flex;
  flex: none;
  align-items: center;
  min-width: 0;
  gap: 8px;
}

.file-status {
  margin-right: 4px;
  white-space: nowrap;
  font-size: 12px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.action-btn {
  width: 28px;
  height: 28px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 8px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-base);
}

.action-btn:hover {
  color: var(--text-main);
  background: var(--icon-bg);
  border-color: var(--item-border);
}

.action-btn.primary:hover {
  color: var(--accent-blue);
  background: var(--accent-cyan-light);
}

.action-btn.danger:hover {
  color: var(--danger-red);
  background: rgba(255, 59, 48, 0.1);
}

.progress-bar-container {
  height: 6px;
  overflow: hidden;
  background: var(--icon-bg);
  border-radius: 4px;
}

.progress-bar-fill {
  height: 100%;
  width: 0;
  background: var(--accent-blue);
  border-radius: 4px;
  transition: width 0.1s linear;
}

.progress-bar-fill.success {
  background: var(--success-green);
}

.admin-header-card {
  margin-bottom: 30px;
  padding: 30px;
}

.transfer-head-compact {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: 0;
}

.admin-title {
  font-size: 24px;
  color: var(--text-main);
}

.connected-to .admin-subtitle {
  display: block;
  margin-top: 4px;
  color: var(--text-secondary);
}

.admin-summary-grid {
  margin-bottom: 30px;
}

.admin-stats-card {
  height: 100%;
}

.admin-stats-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.admin-stats-row {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.admin-stat-item {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 0;
  padding: 16px 15px;
  text-align: left;
  border: 1px solid var(--item-border);
  border-radius: 20px;
  background: var(--item-bg);
  box-shadow: 0 8px 24px -18px rgba(12, 43, 100, 0.2);
}

.admin-stat-item-fluid {
  grid-column: 1 / -1;
  min-height: 142px;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.admin-fluid-card {
  position: relative;
  isolation: isolate;
  display: flex;
  height: 100%;
  min-height: 0;
  overflow: hidden;
  padding: 0;
  border: 1px solid rgba(123, 166, 255, 0.5);
  border-radius: 16px;
  background-color: #edf1f9;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
}

.admin-fluid-fill {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.admin-fluid-wave {
  position: absolute;
  left: 50%;
  top: calc(100% - var(--fluid-level));
  width: 2500px;
  height: 2500px;
  transform: translateX(-50%);
  transform-origin: 50% 50%;
  transition: top 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.admin-fluid-wave-a {
  background-color: rgba(175, 200, 245, 0.6);
  border-radius: 48.5%;
  animation: fluidSpin 20s linear infinite;
}

.admin-fluid-wave-b {
  background-color: rgba(145, 178, 235, 0.88);
  border-radius: 49%;
  animation: fluidSpin 25s linear infinite;
  animation-delay: -10s;
}

.admin-fluid-content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 18px;
  width: 100%;
  min-height: 110px;
  padding: 24px;
}

.admin-fluid-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
  border-radius: 14px;
  background-color: #d7e1f4;
  color: #3b60c4;
  box-shadow: none;
}

.admin-fluid-copy {
  min-width: 0;
  flex: 1;
}

.admin-fluid-copy h3 {
  margin: 0 0 4px 0;
  margin-bottom: 8px;
  font-size: 22px;
  font-weight: 600;
  line-height: 1.15;
  color: #333333;
}

.admin-fluid-copy p {
  margin: 0;
  font-size: 13px;
  color: #778299;
}

.admin-fluid-copy small {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  color: var(--text-secondary);
}

.admin-stat-kicker {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

.admin-stat-item h3 {
  margin-top: 10px;
  margin-bottom: 6px;
  font-size: 34px;
  font-weight: 800;
  font-family: ui-monospace, monospace;
  line-height: 1;
}

.admin-stat-item p {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

.stat-suffix {
  font-size: 16px;
}

.admin-config-stack {
  display: flex;
  flex-direction: column;
  height: 100%;
  gap: 15px;
}

.admin-config-card {
  height: 100%;
}

.admin-config-row {
  margin-bottom: 0;
}

.admin-config-row-field {
  flex-direction: column;
  align-items: stretch;
}

.admin-config-row-last {
  margin-bottom: 0;
}

.admin-field-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.admin-field-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-main);
}

.admin-field-hint {
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-secondary);
}

.admin-field-control-row {
  display: flex;
  gap: 12px;
}

.admin-field-control-row input {
  flex: 1;
}

.admin-config-insights {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 14px;
}

.admin-config-highlight {
  padding: 18px 20px;
  border: 1px solid var(--item-border);
  border-radius: 22px;
  background: linear-gradient(145deg, var(--item-bg-hover), var(--item-bg));
  box-shadow: 0 16px 30px -24px rgba(12, 43, 100, 0.35);
}

.admin-config-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent-cyan-light);
  color: var(--accent-blue);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.admin-config-highlight h3 {
  margin-top: 14px;
  margin-bottom: 8px;
  font-size: 30px;
  font-weight: 800;
  font-family: ui-monospace, monospace;
  color: var(--text-main);
}

.admin-config-highlight p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.admin-table-card {
  min-height: 0;
}

.admin-table-wrapper {
  max-height: 420px;
  overflow-x: auto;
  overflow-y: auto;
  border-radius: 18px;
}

.admin-table-wrapper::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.admin-table-wrapper::-webkit-scrollbar-thumb {
  background: var(--divider-color);
  border-radius: 999px;
}

.admin-table {
  width: 100%;
  margin-top: 10px;
  border-collapse: collapse;
  font-size: 14px;
  text-align: left;
}

.admin-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  padding: 14px 12px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--divider-line);
  background: var(--card-bg);
  font-weight: 600;
  white-space: nowrap;
}

.admin-table td {
  padding: 14px 12px;
  color: var(--text-main);
  border-bottom: 1px solid var(--item-border);
}

.admin-table tbody tr:last-child td {
  border-bottom: 0;
}

.admin-table tr:hover td {
  background-color: var(--item-bg-hover);
}

.hidden {
  display: none !important;
}

.footer {
  position: absolute;
  right: 0;
  bottom: 24px;
  left: 0;
  text-align: center;
  font-size: 13px;
  color: var(--text-secondary);
  opacity: 0.6;
  line-height: 1.8;
  letter-spacing: 0.5px;
  transition: var(--transition-base);
}

.footer:hover {
  opacity: 1;
}

.footer .divider-line {
  margin: 0 8px;
  opacity: 0.5;
}

.footer a {
  text-decoration: none;
}

.footer a:hover {
  color: var(--text-main);
}

#admin-trigger {
  cursor: pointer;
  user-select: none;
}

@keyframes backgroundMove {
  0% {
    transform: scale(1) translate(0, 0);
  }

  100% {
    transform: scale(1.05) translate(2%, 2%);
  }
}

@keyframes ripplePro {
  0% {
    transform: scale(0.8);
    opacity: 0;
  }

  20% {
    opacity: 0.5;
  }

  100% {
    transform: scale(3);
    opacity: 0;
  }
}

@keyframes deviceBeaconPing {
  0% {
    opacity: 0;
    transform: scale(0.7);
  }

  22% {
    opacity: 0.9;
  }

  100% {
    opacity: 0;
    transform: scale(2.8);
  }
}

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

@keyframes showPanelPro {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes fluidSpin {
  0% {
    transform: translateX(-50%) rotate(0deg);
  }

  100% {
    transform: translateX(-50%) rotate(360deg);
  }
}

@media (min-width: 768px) {
  .main-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 1000px;
    padding: 40px 0;
  }

  .header h1 {
    font-size: 48px;
  }

  .card {
    padding: 40px;
  }

  .btn-create,
  .btn-primary,
  input.room-code {
    padding: 18px;
  }

  .transfer-panel {
    max-width: 700px;
  }
}

@media (max-width: 767px) {
  .admin-stats-row {
    grid-template-columns: 1fr;
    grid-template-rows: none;
  }

  .file-info,
  .file-info-right {
    align-items: flex-start;
  }

  .file-info {
    flex-direction: column;
  }

  .file-info-left,
  .file-info-right {
    max-width: 100%;
    width: 100%;
  }

  .file-info-right {
    flex-wrap: wrap;
    row-gap: 8px;
    justify-content: flex-end;
  }

  .file-status {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}

@media (max-width: 600px) {
  body {
    padding-inline: 16px;
  }

  .theme-toggle {
    position: fixed;
    top: auto;
    right: 20px;
    bottom: 30px;
    width: 50px;
    height: 50px;
    margin-top: 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  }

  .card,
  .admin-header-card {
    padding: 28px 22px;
  }

  .header {
    margin-bottom: 28px;
  }

  .header h1 {
    font-size: 36px;
  }

  .huge-code {
    width: 100%;
    font-size: 44px;
    letter-spacing: 8px;
  }

  .text-input-group {
    flex-direction: column;
  }

  .text-input-group button {
    width: 100%;
    min-height: 52px;
  }
}