.kuosan-assistant {
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 2600;
  --assistant-bg: rgba(255, 255, 255, .985);
  --assistant-bg-soft: #f5f5f7;
  --assistant-bg-softer: #e8e8ed;
  --assistant-message-bg: #fff;
  --assistant-border: rgba(17, 17, 17, .1);
  --assistant-border-strong: rgba(17, 17, 17, .22);
  --assistant-text: #1d1d1f;
  --assistant-muted: #6e6e73;
  --assistant-shadow: 0 28px 72px rgba(15, 23, 42, .18);
  --assistant-focus: rgba(17, 17, 17, .1);
  color: var(--assistant-text);
  font-family: Inter, "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.kuosan-assistant button,
.kuosan-assistant textarea {
  font: inherit;
}

.kuosan-assistant-toggle {
  width: 48px;
  height: 48px;
  border: 1px solid var(--assistant-border);
  border-radius: 999px;
  background: var(--assistant-bg);
  color: var(--assistant-text);
  box-shadow: 0 14px 36px rgba(15, 23, 42, .14);
  cursor: pointer;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  backdrop-filter: blur(16px) saturate(1.1);
}

.kuosan-assistant.surface-canvas {
  left: clamp(86px, 26vw, 384px);
  right: auto;
  bottom: 34px;
  z-index: 2700;
}

.kuosan-assistant.surface-canvas .kuosan-assistant-toggle {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 62px;
  height: 62px;
  border-color: rgba(255,255,255,.34);
  background: #f7f3ea;
  color: #07080a;
  box-shadow: 0 0 0 1px rgba(255,255,255,.24), 0 18px 54px rgba(0,0,0,.42), 0 0 34px rgba(255,255,255,.16);
  font-size: 14px;
  font-weight: 850;
  letter-spacing: .08em;
  line-height: 1;
  text-indent: .08em;
}

.kuosan-assistant.surface-canvas .kuosan-assistant-toggle::before {
  content: "";
  position: absolute;
  inset: -8px;
  border: 1px solid rgba(247,243,234,.42);
  border-radius: inherit;
  animation: assistantCanvasPulse 1.9s ease-out infinite;
}

.kuosan-assistant.surface-canvas .kuosan-assistant-panel {
  left: 0;
  right: auto;
  bottom: 78px;
}

@keyframes assistantCanvasPulse {
  from { opacity: .72; transform: scale(.9); }
  to { opacity: 0; transform: scale(1.42); }
}

@media (max-width: 900px) {
  .kuosan-assistant.surface-canvas {
    left: max(18px, env(safe-area-inset-left));
    bottom: 82px;
  }
  .kuosan-assistant.surface-canvas .kuosan-assistant-toggle { width: 58px; height: 58px; }
}

.kuosan-assistant-panel {
  position: absolute;
  right: 0;
  bottom: 58px;
  display: none;
  width: min(640px, calc(100vw - 28px));
  min-width: min(320px, calc(100vw - 24px));
  min-height: min(360px, calc(100vh - 24px));
  max-width: calc(100vw - 24px);
  max-height: calc(100vh - 24px);
  overflow: hidden;
  border: 1px solid var(--assistant-border);
  border-radius: 18px;
  background: var(--assistant-bg);
  color: var(--assistant-text);
  box-shadow: var(--assistant-shadow);
  backdrop-filter: blur(20px) saturate(1.08);
}

.kuosan-assistant.is-open .kuosan-assistant-panel {
  display: flex;
  flex-direction: column;
}

.kuosan-assistant.is-positioned .kuosan-assistant-panel {
  position: fixed;
  left: var(--assistant-left);
  top: var(--assistant-top);
  right: auto;
  bottom: auto;
  width: var(--assistant-width);
  height: var(--assistant-height);
}

.kuosan-assistant-head {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px 12px;
  border-bottom: 1px solid var(--assistant-border);
  cursor: grab;
  user-select: none;
  touch-action: none;
}

.kuosan-assistant-head:active {
  cursor: grabbing;
}

.kuosan-assistant-title {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 3px;
}

.kuosan-assistant-title strong {
  font-size: 15px;
  line-height: 1.2;
  font-weight: 850;
}

.kuosan-assistant-title span {
  color: var(--assistant-muted);
  font-size: 12px;
  line-height: 1.2;
}

.kuosan-assistant-close {
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--assistant-muted);
  cursor: pointer;
  font-size: 18px;
}

.kuosan-assistant-close:hover {
  background: var(--assistant-bg-softer);
  color: var(--assistant-text);
}

.kuosan-assistant-thread {
  display: flex;
  flex: 1 1 auto;
  max-height: min(640px, calc(100vh - 270px));
  min-height: 320px;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  padding: 16px;
}

.kuosan-assistant.is-positioned .kuosan-assistant-thread {
  max-height: none;
}

.kuosan-assistant-empty {
  margin: auto 0;
  color: var(--assistant-muted);
  font-size: 14px;
  line-height: 1.65;
}

.kuosan-assistant-msg {
  width: fit-content;
  max-width: 92%;
  border-radius: 16px;
  padding: 11px 13px;
  font-size: 14px;
  line-height: 1.65;
  white-space: pre-wrap;
}

.kuosan-assistant-msg.user {
  align-self: flex-end;
  border: 1px solid #111;
  background: #111;
  color: #fff;
}

.kuosan-assistant-msg.assistant {
  align-self: flex-start;
  border: 1px solid var(--assistant-border);
  background: var(--assistant-message-bg);
  color: var(--assistant-text);
}

.kuosan-assistant-msg.thinking {
  color: var(--assistant-muted);
}

.kuosan-assistant-msg.thinking::after {
  content: "";
  display: inline-block;
  width: 1.2em;
  animation: assistantThinkingDots 1.15s steps(4, end) infinite;
}

.kuosan-assistant-suggestions {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 16px 12px;
}

.kuosan-assistant-suggestions button {
  border: 1px solid var(--assistant-border);
  border-radius: 999px;
  background: var(--assistant-bg-soft);
  color: var(--assistant-muted);
  cursor: pointer;
  padding: 7px 11px;
  font-size: 12px;
  font-weight: 760;
}

.kuosan-assistant-suggestions button:hover {
  border-color: var(--assistant-border-strong);
  background: var(--assistant-bg-softer);
  color: var(--assistant-text);
}

.kuosan-assistant-actions {
  display: none;
  flex: 0 0 auto;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
  padding: 0 16px 12px;
}

.kuosan-assistant.has-reply .kuosan-assistant-actions {
  display: flex;
}

.kuosan-assistant-apply {
  border: 1px solid var(--assistant-border);
  border-radius: 999px;
  background: #111;
  color: var(--assistant-text);
  color: #fff;
  cursor: pointer;
  padding: 8px 13px;
  font-size: 13px;
  font-weight: 800;
}

.kuosan-assistant-apply.secondary {
  background: var(--assistant-bg-soft);
  color: var(--assistant-muted);
}

.kuosan-assistant-apply:hover:not(:disabled) {
  border-color: var(--assistant-border-strong);
  background: #000;
  color: #fff;
}

.kuosan-assistant-apply:disabled {
  cursor: not-allowed;
  opacity: .48;
}

.kuosan-assistant-form {
  display: grid;
  flex: 0 0 auto;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  padding: 13px 16px 16px;
  border-top: 1px solid var(--assistant-border);
}

.kuosan-assistant-input {
  width: 100%;
  min-height: 96px;
  max-height: 240px;
  resize: vertical;
  border: 1px solid var(--assistant-border);
  border-radius: 16px;
  background: var(--assistant-bg-soft);
  color: var(--assistant-text);
  outline: none;
  padding: 11px 12px;
  font-size: 14px;
  line-height: 1.55;
}

.kuosan-assistant-input:focus {
  border-color: var(--assistant-border-strong);
  box-shadow: 0 0 0 3px var(--assistant-focus);
}

.kuosan-assistant-send {
  align-self: end;
  min-width: 68px;
  height: 48px;
  border: 1px solid var(--assistant-border);
  border-radius: 16px;
  border-color: #111;
  background: #111;
  color: #fff;
  cursor: pointer;
  font-size: 13px;
  font-weight: 850;
}

.kuosan-assistant-send:hover:not(:disabled) {
  border-color: var(--assistant-border-strong);
  background: var(--assistant-bg-softer);
}

.kuosan-assistant-send:disabled {
  cursor: not-allowed;
  opacity: .55;
}

.kuosan-assistant-resize {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 42px;
  height: 42px;
  cursor: nwse-resize;
  touch-action: none;
}

.kuosan-assistant-resize::before,
.kuosan-assistant-resize::after {
  content: "";
  position: absolute;
  right: 11px;
  bottom: 11px;
  border-right: 2px solid var(--assistant-border-strong);
  border-bottom: 2px solid var(--assistant-border-strong);
}

.kuosan-assistant-resize::before {
  width: 13px;
  height: 13px;
}

.kuosan-assistant-resize::after {
  width: 7px;
  height: 7px;
}

body:has(.ks-studio-page) .kuosan-assistant {
  z-index: 90;
}

body[data-theme="obsidian"] .kuosan-assistant,
body:has(.ks-studio-page:not(.ks-canvas-theme-light)) .kuosan-assistant {
  --assistant-bg: rgba(14, 16, 22, .985);
  --assistant-bg-soft: #1d1d1f;
  --assistant-bg-softer: #2c2c2e;
  --assistant-message-bg: #1d1d1f;
  --assistant-border: rgba(255, 255, 255, .16);
  --assistant-border-strong: rgba(255, 255, 255, .32);
  --assistant-text: #fffaf0;
  --assistant-muted: #c7c3bb;
  --assistant-shadow: 0 28px 80px rgba(0, 0, 0, .56);
  --assistant-focus: rgba(255, 255, 255, .12);
}

body[data-theme="obsidian"] .kuosan-assistant .kuosan-assistant-msg.user,
body:has(.ks-studio-page:not(.ks-canvas-theme-light)) .kuosan-assistant .kuosan-assistant-msg.user,
body[data-theme="obsidian"] .kuosan-assistant .kuosan-assistant-send,
body:has(.ks-studio-page:not(.ks-canvas-theme-light)) .kuosan-assistant .kuosan-assistant-send,
body[data-theme="obsidian"] .kuosan-assistant .kuosan-assistant-apply,
body:has(.ks-studio-page:not(.ks-canvas-theme-light)) .kuosan-assistant .kuosan-assistant-apply {
  border-color: #fff;
  background: #fff;
  color: #111;
}

body[data-theme="obsidian"] .kuosan-assistant .kuosan-assistant-apply.secondary,
body:has(.ks-studio-page:not(.ks-canvas-theme-light)) .kuosan-assistant .kuosan-assistant-apply.secondary {
  border-color: var(--assistant-border);
  background: var(--assistant-bg-soft);
  color: var(--assistant-muted);
}

body[data-theme="obsidian"] .kuosan-assistant .kuosan-assistant-apply:hover:not(:disabled),
body:has(.ks-studio-page:not(.ks-canvas-theme-light)) .kuosan-assistant .kuosan-assistant-apply:hover:not(:disabled) {
  background: #f5f5f7;
  color: #111;
}

body[data-theme="obsidian"] .kuosan-assistant .kuosan-assistant-apply.secondary:hover:not(:disabled),
body:has(.ks-studio-page:not(.ks-canvas-theme-light)) .kuosan-assistant .kuosan-assistant-apply.secondary:hover:not(:disabled) {
  border-color: var(--assistant-border-strong);
  background: var(--assistant-bg-softer);
  color: var(--assistant-text);
}

@keyframes assistantThinkingDots {
  0% { content: ""; }
  25% { content: "."; }
  50% { content: ".."; }
  75%,
  100% { content: "..."; }
}

@media (max-width: 560px) {
  .kuosan-assistant {
    right: 12px;
    bottom: 12px;
  }

  .kuosan-assistant-panel {
    width: calc(100vw - 24px);
    min-width: calc(100vw - 24px);
    bottom: 58px;
  }

  .kuosan-assistant.is-positioned .kuosan-assistant-panel {
    width: var(--assistant-width);
    height: var(--assistant-height);
  }

  .kuosan-assistant-thread {
    max-height: min(440px, calc(100vh - 260px));
    min-height: 260px;
  }

  .kuosan-assistant-form {
    grid-template-columns: 1fr;
  }

  .kuosan-assistant-send {
    width: 100%;
  }
}