:root {
  --sdc-bg: #1a1a2e;
  --sdc-surface: #16213e;
  --sdc-border: rgba(255, 255, 255, 0.08);
  --sdc-primary: #e94560;
  --sdc-text: #f0f0f0;
  --sdc-muted: #a0a0b0;
  --sdc-radius: 12px;
  --sdc-banner-bg: #16213e;
  --sdc-toggle-off: #3a3a5c;
}

@media (prefers-color-scheme: light) {
  :root {
    --sdc-bg: #ffffff;
    --sdc-surface: #f8f8fa;
    --sdc-border: rgba(0, 0, 0, 0.08);
    --sdc-text: #1a1a2e;
    --sdc-muted: #6b6b80;
    --sdc-banner-bg: #f8f8fa;
    --sdc-toggle-off: #d0d0d8;
  }
}

@keyframes slideUp {
  from { transform: translateY(100%); opacity: 0.8; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes gentlePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.sdc-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  color: var(--sdc-text);
  padding: 10px;
  animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.sdc-banner.sdc-style-center_modal {
  top: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 10, 18, 0.45);
}

.sdc-banner.sdc-style-center_modal .sdc-banner__inner {
  width: min(680px, calc(100% - 24px));
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.sdc-banner.sdc-style-corner_card {
  left: auto;
  right: 12px;
  bottom: 12px;
  width: min(420px, calc(100% - 24px));
}

.sdc-banner.sdc-style-corner_card .sdc-banner__inner {
  max-width: none;
}

.sdc-banner__inner {
  margin: 0 auto;
  max-width: 760px;
  border: 1px solid var(--sdc-border);
  border-radius: var(--sdc-radius);
  background: var(--sdc-banner-bg);
  box-shadow: 0 -4px 30px rgba(0, 0, 0, 0.3);
  padding: 12px;
}

.sdc-banner[data-sdc-state="compact"] .sdc-banner__inner {
  max-width: 560px;
}

.sdc-banner.sdc-mode-light {
  --sdc-bg: #ffffff;
  --sdc-surface: #f8f8fa;
  --sdc-border: rgba(0, 0, 0, 0.08);
  --sdc-text: #1a1a2e;
  --sdc-muted: #6b6b80;
  --sdc-banner-bg: #f8f8fa;
  --sdc-toggle-off: #d0d0d8;
}

.sdc-banner.sdc-mode-dark {
  --sdc-bg: #1a1a2e;
  --sdc-surface: #16213e;
  --sdc-border: rgba(255, 255, 255, 0.08);
  --sdc-text: #f0f0f0;
  --sdc-muted: #a0a0b0;
  --sdc-banner-bg: #16213e;
  --sdc-toggle-off: #3a3a5c;
}

.sdc-banner__compact,
.sdc-banner__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

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

.sdc-banner__headline strong,
.sdc-banner__header h3,
.sdc-channel__title {
  color: var(--sdc-text);
}

.sdc-banner__expanded {
  display: grid;
  gap: 12px;
}

.sdc-banner[data-sdc-state="compact"] .sdc-banner__expanded {
  display: none !important;
}

.sdc-banner[data-sdc-state="expanded"] .sdc-banner__compact {
  display: none !important;
}

.sdc-banner__header h3 {
  margin: 0;
  font-size: 18px;
}

.sdc-banner__header p {
  margin: 6px 0 0;
  color: var(--sdc-muted);
  font-size: 14px;
}

.sdc-wave {
  margin-top: 8px;
  height: 8px;
  opacity: 0.3;
  background: repeating-linear-gradient(90deg, var(--sdc-muted), var(--sdc-muted) 6px, transparent 6px, transparent 12px);
}

.sdc-channels {
  border-top: 1px solid var(--sdc-border);
  border-bottom: 1px solid var(--sdc-border);
}

.sdc-channel {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 8px 0;
  border-bottom: 1px solid var(--sdc-border);
}

.sdc-channel:last-child { border-bottom: 0; }

.sdc-channel__meta {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 10px;
  min-width: 0;
}

.sdc-channel__title { font-size: 16px; font-weight: 600; }
.sdc-channel__subtitle { color: var(--sdc-muted); font-size: 13px; }
.sdc-channel__description { color: var(--sdc-muted); font-size: 13px; margin-top: 2px; }

.sdc-btn {
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid transparent;
  background: transparent;
  color: var(--sdc-text);
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}

.sdc-btn--primary {
  background: var(--sdc-primary);
  color: #fff;
}

.sdc-btn--outline {
  border-color: var(--sdc-primary);
}

.sdc-btn--outline:hover {
  background: var(--sdc-primary);
  color: #fff;
}

.sdc-btn--ghost {
  border-color: var(--sdc-border);
}

.sdc-btn--link {
  color: var(--sdc-muted);
  text-decoration: underline;
  padding-left: 0;
  padding-right: 0;
}

.sdc-toggle-wrap {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sdc-toggle-input {
  width: 44px;
  height: 24px;
  cursor: pointer;
  margin: 0;
  appearance: none;
  -webkit-appearance: none;
  background: var(--sdc-toggle-off);
  border: 1px solid var(--sdc-border);
  border-radius: 999px;
  position: relative;
  transition: background 0.2s ease, border-color 0.2s ease;
  pointer-events: auto !important;
}

.sdc-toggle-input::before {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.28);
  transition: transform 0.2s ease;
}

.sdc-toggle-input:checked {
  background: var(--sdc-primary);
  border-color: var(--sdc-primary);
}

.sdc-toggle-input:checked::before {
  transform: translateX(20px);
}

.sdc-toggle-input:focus-visible {
  outline: 2px solid var(--sdc-primary);
  outline-offset: 2px;
}

.sdc-toggle-input:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.sdc-floating {
  position: fixed;
  left: 20px;
  bottom: 20px;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 50%;
  background: var(--sdc-surface);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  z-index: 9998;
  cursor: pointer;
  animation: gentlePulse 3s ease-in-out infinite;
}

.sdc-floating img { width: 20px; height: 20px; }

.sdc-floating__tooltip {
  position: absolute;
  left: 0;
  bottom: 48px;
  font-size: 12px;
  background: var(--sdc-surface);
  color: var(--sdc-text);
  border: 1px solid var(--sdc-border);
  border-radius: 999px;
  padding: 4px 10px;
  opacity: 0;
  transition: opacity 0.2s ease-in-out;
  white-space: nowrap;
}

.sdc-floating:hover .sdc-floating__tooltip {
  opacity: 1;
}

.sdc-debug-panel {
  position: fixed;
  right: 12px;
  bottom: 12px;
  width: min(360px, calc(100vw - 24px));
  max-height: 180px;
  overflow: hidden;
  border: 1px solid var(--sdc-border);
  border-radius: 10px;
  background: var(--sdc-surface);
  color: var(--sdc-text);
  z-index: 10000;
  font-size: 12px;
}

.sdc-debug-panel__title {
  padding: 6px 10px;
  font-weight: 700;
  border-bottom: 1px solid var(--sdc-border);
}

.sdc-debug-panel__log {
  max-height: 140px;
  overflow: auto;
  padding: 8px 10px;
  line-height: 1.35;
}

.sdc-debug-line {
  margin-bottom: 4px;
  word-break: break-word;
}

@media (max-width: 768px) {
  .sdc-banner {
    padding: 8px;
  }

  .sdc-banner__inner {
    max-width: 100%;
    padding: 10px;
  }

  .sdc-banner__compact,
  .sdc-banner__actions {
    flex-direction: column;
    align-items: stretch;
  }
}