/* 引入小米字体 MiSans-Bold (本地字体文件) */
@font-face {
  font-family: 'MiSans';
  src: url('font/MiSans-Bold.woff2') format('woff2');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light;
  --bg: #f5f5f7;
  --text: #1d1d1f;
  --muted: #86868b;
  --border: #e1e1e3;
  --border-strong: #86868b;
  --card: #ffffff;
  --card-soft: rgba(255, 255, 255, 0.9);
  --card-muted: rgba(255, 255, 255, 0.8);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.06);
  --shadow-sm: 0 6px 14px rgba(0, 0, 0, 0.06);
  --shadow-strong: 0 8px 20px rgba(0, 0, 0, 0.08);
  --panel-shadow: -8px 0 24px rgba(0, 0, 0, 0.12);
  --overlay: rgba(0, 0, 0, 0.3);
  --focus-ring: rgba(29, 29, 31, 0.2);
  --input-bg: rgba(255, 255, 255, 0.9);
  --segment-bg: rgba(255, 255, 255, 0.8);
  --button-hover: #f5f5f7;
  --button-active: #ededf0;
  --icon-bg: #f0f0f2;
  --bubble-bg: rgba(255, 255, 255, 0.9);
  --bubble-border: #e1e1e3;
  --bubble-shadow: 0 6px 14px rgba(0, 0, 0, 0.06);
}

.dark {
  color-scheme: dark;
  --bg: #000000;
  --text: #f5f5f7;
  --muted: #a1a1a6;
  --border: #2c2c2e;
  --border-strong: #3a3a3c;
  --card: #1c1c1e;
  --card-soft: rgba(28, 28, 30, 0.8);
  --card-muted: rgba(28, 28, 30, 0.7);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 6px 14px rgba(0, 0, 0, 0.12);
  --shadow-strong: 0 8px 20px rgba(0, 0, 0, 0.3);
  --panel-shadow: -8px 0 24px rgba(0, 0, 0, 0.45);
  --overlay: rgba(0, 0, 0, 0.35);
  --focus-ring: rgba(245, 245, 247, 0.2);
  --input-bg: rgba(28, 28, 30, 0.8);
  --segment-bg: rgba(28, 28, 30, 0.8);
  --button-hover: #111114;
  --button-active: #0b0b0d;
  --icon-bg: #2a2a2c;
  --bubble-bg: rgba(28, 28, 30, 0.8);
  --bubble-border: #2c2c2e;
  --bubble-shadow: 0 6px 14px rgba(0, 0, 0, 0.18);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
}

:focus,
:focus-visible {
  outline: none;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

button:disabled,
input:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  background: var(--bg);
  color: var(--text);
  font-family: "MiSans", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft Yahei", system-ui, sans-serif;
  line-height: 1.5;
}

.icon {
  width: 20px;
  height: 20px;
  display: block;
}

.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card-soft);
  color: var(--text);
  box-shadow: var(--shadow-strong);
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.icon-button:hover {
  background: var(--button-hover);
  border-color: var(--border-strong);
}

.icon-button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--focus-ring);
}

.icon-button--small {
  width: 32px;
  height: 32px;
}

.icon-button--medium {
  width: 36px;
  height: 36px;
}

.icon-button--square {
  width: 44px;
  height: 44px;
  border-radius: 12px;
}

.settings-toggle {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 10;
}

/* 登录按钮样式 */
.login-button {
  position: fixed;
  top: 16px;
  right: 72px;
  z-index: 10;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 40px;
  padding: 0 16px 0 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--card-soft);
  color: var(--text);
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: var(--shadow-strong);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.login-button:hover {
  background: var(--button-hover);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.login-button:active {
  transform: translateY(0);
}

.login-button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--focus-ring);
}

.login-button .icon {
  width: 18px;
  height: 18px;
}

/* 极速模式下禁用毛玻璃效果 */
.turbo-mode .login-button {
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

@media (max-width: 640px) {
  .login-button {
    right: 64px;
    height: 36px;
    padding: 0 12px 0 10px;
    font-size: 0.8rem;
  }
  
  .login-button .icon {
    width: 16px;
    height: 16px;
  }
}

/* 登录提示弹窗样式 */
.login-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 100;
}

.login-modal-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.login-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  width: calc(100% - 40px);
  max-width: 380px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 101;
}

.login-modal.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}

.login-modal-content {
  padding: 28px 24px;
  text-align: center;
}

.login-modal-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.35);
}

.login-modal-title {
  margin: 0 0 12px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
}

.login-modal-desc {
  margin: 0 0 24px;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--muted);
}

.login-modal-desc strong {
  color: var(--text);
  font-weight: 600;
}

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

.login-modal-button {
  flex: 1;
  padding: 14px 20px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

.login-modal-button--cancel {
  background: var(--button-hover);
  border: 1px solid var(--border);
  color: var(--text);
}

.login-modal-button--cancel:hover {
  background: var(--button-active);
  border-color: var(--border-strong);
}

.login-modal-button--confirm {
  background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  border: none;
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.35);
}

.login-modal-button--confirm:hover {
  background: linear-gradient(135deg, #4b92ff 0%, #9b6cf6 100%);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.45);
  transform: translateY(-1px);
}

.dark .login-modal {
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.dark .login-modal-icon {
  background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 100%);
  box-shadow: 0 8px 24px rgba(96, 165, 250, 0.4);
}

.dark .login-modal-button--confirm {
  background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 100%);
  box-shadow: 0 4px 16px rgba(96, 165, 250, 0.4);
}

.dark .login-modal-button--confirm:hover {
  background: linear-gradient(135deg, #70b5ff 0%, #b79bff 100%);
  box-shadow: 0 6px 20px rgba(96, 165, 250, 0.5);
}

/* 极速模式下禁用毛玻璃效果 */
.turbo-mode .login-modal-overlay.is-visible {
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.version-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--muted);
  opacity: 0.8;
  font-family: "MiSans", system-ui, sans-serif;
  letter-spacing: 0.02em;
}

.layout {
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.card {
  width: 100%;
  padding: 28px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: var(--shadow-lg);
  text-align: center;
}

@media (min-width: 640px) {
  .card {
    padding: 32px;
  }
}

.card-header {
  margin-bottom: 24px;
}

.card-title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
}

.card-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.option-button {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 16px;
  text-align: left;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  background: transparent;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.option-button:hover {
  background: var(--button-hover);
  border-color: var(--border-strong);
}

.option-button:active {
  background: var(--button-active);
}

.option-button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--focus-ring);
}

.option-icon {
  width: 36px;
  height: 36px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--icon-bg);
  color: var(--text);
  flex: 0 0 auto;
}

.support-button,
.support-back {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 12px 16px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  background: var(--card-soft);
  box-shadow: var(--shadow-md);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.support-button:hover,
.support-back:hover {
  background: var(--button-hover);
}

.support-button:focus-visible,
.support-back:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--focus-ring);
}

.support-back {
  margin-top: 12px;
}

.footer {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  border: 1px dashed var(--border);
  padding: 8px 16px;
  background: var(--card-soft);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--muted);
  z-index: 5;
  box-shadow: var(--shadow-sm);
}

.footer-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--border);
  padding: 4px 12px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
  background: var(--card-soft);
  letter-spacing: 0.02em;
}

.footer-note {
  font-size: 0.82rem;
  line-height: 1.6;
}

.overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, backdrop-filter 0.3s ease, -webkit-backdrop-filter 0.3s ease;
  z-index: 20;
}

.overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* 极速模式下禁用毛玻璃效果 */
.turbo-mode .overlay.is-visible {
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.turbo-mode .turbo-modal-overlay.is-visible {
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.settings-panel {
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: 280px;
  border-left: 1px solid var(--border);
  background: var(--card);
  transform: translateX(100%);
  transition: transform 0.2s ease;
  box-shadow: var(--panel-shadow);
  z-index: 30;
}

.settings-panel.is-open {
  transform: translateX(0);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.panel-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}

.panel-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.setting-label {
  font-size: 0.875rem;
  font-weight: 600;
}

.setting-value {
  font-size: 0.75rem;
  color: var(--muted);
}

.theme-toggle {
  position: relative;
  width: 56px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  padding: 0 4px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.theme-toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--focus-ring);
}

.theme-thumb {
  width: 24px;
  height: 24px;
  border-radius: 999px;
  background: var(--text);
  transform: translateX(0);
  transition: transform 0.2s ease;
}

.theme-thumb.is-on {
  transform: translateX(24px);
}

/* 极速模式样式 */
.turbo-toggle[aria-pressed="true"] {
  background: linear-gradient(135deg, #ff6b35 0%, #f7931e 50%, #ffcc00 100%);
  border-color: rgba(255, 107, 53, 0.5);
  box-shadow: 0 0 12px rgba(247, 147, 30, 0.4);
}

.dark .turbo-toggle[aria-pressed="true"] {
  background: linear-gradient(135deg, #ff8c42 0%, #ffaa33 50%, #ffe066 100%);
  border-color: rgba(255, 170, 51, 0.6);
  box-shadow: 0 0 16px rgba(255, 170, 51, 0.5);
}

.turbo-thumb.is-on {
  background: #ffffff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* 极速模式确认弹窗样式 */
.turbo-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 100;
}

.turbo-modal-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.turbo-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  width: calc(100% - 40px);
  max-width: 380px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 101;
}

.turbo-modal.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}

.turbo-modal-content {
  padding: 28px 24px;
  text-align: center;
}

.turbo-modal-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ff6b35 0%, #f7931e 50%, #ffcc00 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  box-shadow: 0 8px 24px rgba(247, 147, 30, 0.35);
  animation: turbo-pulse 2s ease-in-out infinite;
}

@keyframes turbo-pulse {

  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 8px 24px rgba(247, 147, 30, 0.35);
  }

  50% {
    transform: scale(1.05);
    box-shadow: 0 12px 32px rgba(247, 147, 30, 0.5);
  }
}

.turbo-modal-title {
  margin: 0 0 12px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
}

.turbo-modal-desc {
  margin: 0 0 24px;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--muted);
}

.turbo-modal-desc strong {
  color: var(--text);
  font-weight: 600;
}

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

.turbo-modal-button {
  flex: 1;
  padding: 14px 20px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

.turbo-modal-button--cancel {
  background: var(--button-hover);
  border: 1px solid var(--border);
  color: var(--text);
}

.turbo-modal-button--cancel:hover {
  background: var(--button-active);
  border-color: var(--border-strong);
}

.turbo-modal-button--confirm {
  background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
  border: none;
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(247, 147, 30, 0.35);
}

.turbo-modal-button--confirm:hover:not(:disabled) {
  background: linear-gradient(135deg, #ff7b45 0%, #ffa32e 100%);
  box-shadow: 0 6px 20px rgba(247, 147, 30, 0.45);
  transform: translateY(-1px);
}

.turbo-modal-button--confirm:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
}

.dark .turbo-modal {
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.dark .turbo-modal-icon {
  background: linear-gradient(135deg, #ff8c42 0%, #ffaa33 50%, #ffe066 100%);
  box-shadow: 0 8px 24px rgba(255, 170, 51, 0.4);
}

@keyframes turbo-pulse-dark {

  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 8px 24px rgba(255, 170, 51, 0.4);
  }

  50% {
    transform: scale(1.05);
    box-shadow: 0 12px 32px rgba(255, 170, 51, 0.55);
  }
}

.dark .turbo-modal-icon {
  animation: turbo-pulse-dark 2s ease-in-out infinite;
}

.dark .turbo-modal-button--confirm {
  background: linear-gradient(135deg, #ff8c42 0%, #ffaa33 100%);
  box-shadow: 0 4px 16px rgba(255, 170, 51, 0.4);
}

.dark .turbo-modal-button--confirm:hover:not(:disabled) {
  background: linear-gradient(135deg, #ff9c52 0%, #ffba43 100%);
  box-shadow: 0 6px 20px rgba(255, 170, 51, 0.5);
}

.support-modal {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  background: var(--card);
  opacity: 0;
  pointer-events: none;
  transform: translateY(100%);
  transition: opacity 0.5s ease, transform 0.5s ease;
  z-index: 40;
}

.support-modal.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.support-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.support-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

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

.support-mode-title {
  font-size: 0.875rem;
  font-weight: 600;
}

.support-mode-value {
  font-size: 0.75rem;
  color: var(--muted);
}

.mode-switch {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--segment-bg);
}

.mode-button {
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text);
  opacity: 0.7;
  background: transparent;
  transition: background-color 0.2s ease, color 0.2s ease, opacity 0.2s ease, box-shadow 0.2s ease;
}

.mode-button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--focus-ring);
}

.mode-button.is-active {
  background: var(--text);
  color: var(--bg);
  opacity: 1;
  box-shadow: var(--shadow-sm);
}

.support-messages {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 0.875rem;
}

.support-bubble {
  max-width: 85%;
  border-radius: 12px;
  padding: 8px 12px;
}

.support-bubble--assistant {
  align-self: flex-start;
  border: 1px solid var(--bubble-border);
  background: var(--bubble-bg);
  color: var(--text);
  box-shadow: var(--bubble-shadow);
}

.support-bubble--user {
  align-self: flex-end;
  background: var(--text);
  color: var(--bg);
  box-shadow: var(--shadow-sm);
}

.support-footer {
  border-top: 1px solid var(--border);
  padding: 16px 20px;
}

.support-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.support-input {
  flex: 1;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  padding: 0 12px;
  font-size: 0.875rem;
  color: var(--text);
}

.support-input:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--focus-ring);
}

.support-input::placeholder {
  color: var(--muted);
}

.support-send {
  border-radius: 12px;
}

.support-message p,
.support-message h1,
.support-message h2,
.support-message h3,
.support-message h4,
.support-message li {
  margin: 0 0 0.5em;
}

.support-message p:last-child,
.support-message li:last-child {
  margin-bottom: 0;
}

.support-message ul,
.support-message ol {
  padding-left: 1.25em;
  margin: 0 0 0.5em;
}

.support-message ul {
  list-style-type: disc;
}

.support-message ol {
  list-style-type: decimal;
}

.support-message code {
  background-color: rgba(0, 0, 0, 0.08);
  padding: 0.1em 0.35em;
  border-radius: 4px;
  font-size: 0.9em;
}

.dark .support-message code {
  background-color: rgba(255, 255, 255, 0.12);
}

.support-message hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0.75em 0;
}

@keyframes typewriter-cursor {

  0%,
  50% {
    opacity: 1;
  }

  51%,
  100% {
    opacity: 0;
  }
}

.typewriter-cursor::after {
  content: "|";
  display: inline;
  animation: typewriter-cursor 1s infinite;
  margin-left: 2px;
  color: currentColor;
}

@keyframes tool-pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.6;
  }
}

@keyframes tool-shimmer {
  0% {
    background-position: -200% 0;
  }

  100% {
    background-position: 200% 0;
  }
}

.tool-indicator {
  position: relative;
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.1) 0%, rgba(147, 51, 234, 0.15) 50%, rgba(59, 130, 246, 0.1) 100%);
  background-size: 200% 100%;
  animation: tool-shimmer 2s ease-in-out infinite, tool-pulse 1.5s ease-in-out infinite;
  border-color: rgba(59, 130, 246, 0.3) !important;
}

.dark .tool-indicator {
  background: linear-gradient(90deg, rgba(99, 102, 241, 0.15) 0%, rgba(168, 85, 247, 0.2) 50%, rgba(99, 102, 241, 0.15) 100%);
  background-size: 200% 100%;
  border-color: rgba(139, 92, 246, 0.4) !important;
}

.tool-used-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  padding: 0.25em 0.65em;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.12) 0%, rgba(147, 51, 234, 0.12) 100%);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: 9999px;
  font-size: 0.8em;
  font-weight: 500;
  color: #3b82f6;
  letter-spacing: 0.01em;
}

.dark .tool-used-badge {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.18) 0%, rgba(168, 85, 247, 0.18) 100%);
  border-color: rgba(139, 92, 246, 0.35);
  color: #a78bfa;
}

.tool-indicator::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.3), rgba(147, 51, 234, 0.3));
  opacity: 0;
  z-index: -1;
  animation: tool-glow 2s ease-in-out infinite;
}

@keyframes tool-glow {

  0%,
  100% {
    opacity: 0;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(1.02);
  }
}

@media (prefers-reduced-motion: reduce) {

  .icon-button,
  .option-button,
  .support-button,
  .support-back,
  .overlay,
  .settings-panel,
  .theme-thumb,
  .support-modal,
  .mode-button {
    transition: none;
  }

  .tool-indicator,
  .tool-indicator::before,
  .typewriter-cursor::after {
    animation: none;
  }
}