/* ============================================================
   文章翻译按钮
   - 与搜索栏同款毛玻璃样式
   - 位于文章标题附近
   ============================================================ */

/* 翻译按钮容器 */
.translate-btn-wrap {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 12px;
  vertical-align: middle;
  position: relative;
}

/* 翻译按钮 - 与搜索栏同款毛玻璃胶囊 */
.translate-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .60);
  background: linear-gradient(150deg, rgba(246, 248, 252, .50), rgba(232, 238, 248, .40));
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, .6),
    0 2px 8px rgba(40, 54, 88, .08);
  color: rgba(70, 84, 116, .85);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  justify-content: center;
  overflow: hidden;
  /* 宽度过渡：默认态 ↔ 展开态 */
  transition: padding 0.4s cubic-bezier(.34, 1.2, .64, 1),
              background 0.2s ease,
              color 0.2s ease;
}

.translate-btn:hover {
  background: linear-gradient(150deg, rgba(255, 255, 255, .46), rgba(255, 255, 255, .22));
  color: var(--theme-color, #49b1f5);
}

/* 暗色模式 */
html[data-theme='dark'] .translate-btn {
  color: rgba(255, 255, 255, .88);
  background: linear-gradient(150deg, rgba(36, 42, 60, .55), rgba(20, 24, 36, .52));
  border-color: rgba(255, 255, 255, .12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06), 0 2px 8px rgba(0, 0, 0, .3);
}

html[data-theme='dark'] .translate-btn:hover {
  background: linear-gradient(150deg, rgba(44, 52, 74, .58), rgba(26, 32, 46, .55));
  border-color: rgba(255, 255, 255, .16);
  color: var(--theme-color, #49b1f5);
}

/* 翻译图标 */
.translate-btn i {
  font-size: 14px;
}

/* 翻译文字过渡 */
.translate-text {
  transition: opacity 0.1s ease;
}

/* ==================== 展开态 ==================== */
.translate-btn.expanded {
  padding: 6px 20px;
}

/* ==================== Loading 态：跑马灯 + 流光字 ==================== */
.translate-btn.loading {
  overflow: hidden;
  pointer-events: none;
}

/* 跑马灯边框（展开前先跑） */
.translate-btn.loading::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 999px;
  background: conic-gradient(
    from var(--flow-angle, 0deg),
    rgba(30, 58, 138, 0) 0%,
    rgba(37, 99, 235, .95) 18%,
    rgba(124, 58, 237, .95) 32%,
    rgba(8, 145, 178, .92) 50%,
    rgba(234, 88, 12, .92) 68%,
    rgba(37, 99, 235, .95) 82%,
    rgba(30, 58, 138, 0) 100%
  );
  z-index: -1;
  padding: 2px;
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  mask-composite: exclude;
  animation: translate-flow-rotate 4s linear infinite,
             translate-glow-fade 2s ease-in-out infinite;
  opacity: 0;
}

@keyframes translate-flow-rotate {
  to { --flow-angle: 360deg; }
}

@keyframes translate-glow-fade {
  0%, 100% { opacity: 0; }
  50% { opacity: 1; }
}

@property --flow-angle {
  syntax: '<angle>';
  inherits: false;
  initial-value: 0deg;
}

/* 流光字 */
.translate-btn.loading .translate-text {
  background: linear-gradient(
    90deg,
    #ff6b6b, #feca57, #48dbfb, #ff9ff3, #ff6b6b
  );
  background-size: 200% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: translate-text-flow 4s linear infinite,
             translate-text-fade 2s ease-in-out infinite;
}

@keyframes translate-text-flow {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

@keyframes translate-text-fade {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* 翻译中状态文字 */
.translate-status {
  font-size: 12px;
  color: rgba(90, 100, 130, .7);
}

/* ==================== 失败提示 toast ==================== */
/* 挂在 body 上用 fixed 定位：标题容器有 overflow 裁剪，放在按钮旁边会被裁掉 */
.translate-toast {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9999;
  max-width: 300px;
  padding: 6px 12px;
  border-radius: 10px;
  border: 1px solid rgba(255, 120, 120, .45);
  background: linear-gradient(150deg, rgba(255, 246, 246, .92), rgba(255, 236, 236, .88));
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 6px 20px rgba(180, 40, 40, .18);
  color: #c0392b;
  font-size: 12px;
  line-height: 1.5;
  white-space: normal;
  text-align: left;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity .25s ease, transform .25s ease;
  pointer-events: none;
}

.translate-toast.show {
  opacity: 1;
  transform: translateY(0);
}

html[data-theme='dark'] .translate-toast {
  border-color: rgba(255, 140, 140, .3);
  background: linear-gradient(150deg, rgba(58, 30, 34, .92), rgba(40, 22, 26, .9));
  color: #ff9f9f;
  box-shadow: 0 6px 20px rgba(0, 0, 0, .45);
}

/* 忙碌态：请求期间禁止重复点击 */
.translate-btn.busy {
  pointer-events: none;
  opacity: .85;
}

/* 翻译后的内容样式 */
.translated-content::before {
  content: 'AI 翻译';
  position: absolute;
  top: -24px;
  left: 0;
  font-size: 11px;
  color: rgba(120, 170, 255, .8);
  background: rgba(120, 170, 255, .1);
  padding: 2px 8px;
  border-radius: 4px;
}

/* ==================== 设置齿轮按钮 ==================== */
.translate-settings-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  padding: 0;
  margin-left: 4px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .60);
  background: linear-gradient(150deg, rgba(246, 248, 252, .50), rgba(232, 238, 248, .40));
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, .6),
    0 2px 8px rgba(40, 54, 88, .08);
  color: rgba(70, 84, 116, .85);
  font-size: 13px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.translate-settings-btn:hover {
  background: linear-gradient(150deg, rgba(255, 255, 255, .46), rgba(255, 255, 255, .22));
  color: var(--theme-color, #49b1f5);
  transform: rotate(30deg);
}

html[data-theme='dark'] .translate-settings-btn {
  color: rgba(255, 255, 255, .88);
  background: linear-gradient(150deg, rgba(36, 42, 60, .55), rgba(20, 24, 36, .52));
  border-color: rgba(255, 255, 255, .12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06), 0 2px 8px rgba(0, 0, 0, .3);
}

html[data-theme='dark'] .translate-settings-btn:hover {
  background: linear-gradient(150deg, rgba(44, 52, 74, .58), rgba(26, 32, 46, .55));
  border-color: rgba(255, 255, 255, .16);
}

/* ==================== 设置弹窗遮罩 ==================== */
.translate-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 20, 35, .45);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.translate-modal-overlay.show {
  opacity: 1;
  visibility: visible;
}

.translate-modal {
  width: min(420px, 90vw);
  padding: 26px 26px 22px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, .55);
  background: linear-gradient(160deg, rgba(250, 252, 255, .92), rgba(240, 246, 255, .88));
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, .6),
    0 12px 40px rgba(15, 25, 50, .18);
  transform: translateY(12px) scale(.97);
  transition: transform 0.3s cubic-bezier(.34, 1.2, .64, 1);
}

.translate-modal-overlay.show .translate-modal {
  transform: translateY(0) scale(1);
}

html[data-theme='dark'] .translate-modal {
  border-color: rgba(255, 255, 255, .14);
  background: linear-gradient(160deg, rgba(38, 44, 62, .92), rgba(24, 30, 44, .90));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, .06),
    0 12px 40px rgba(0, 0, 0, .4);
}

.translate-modal-title {
  font-size: 16px;
  font-weight: 600;
  color: rgba(50, 64, 92, .95);
  margin-bottom: 8px;
}

html[data-theme='dark'] .translate-modal-title {
  color: rgba(255, 255, 255, .92);
}

.translate-modal-desc {
  font-size: 12px;
  line-height: 1.6;
  color: rgba(90, 104, 130, .75);
  margin-bottom: 16px;
}

html[data-theme='dark'] .translate-modal-desc {
  color: rgba(210, 220, 235, .6);
}

.translate-key-input {
  width: 100%;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid rgba(120, 150, 200, .35);
  background: rgba(255, 255, 255, .55);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: rgba(40, 54, 82, .9);
  font-size: 13px;
  font-family: inherit;
  box-sizing: border-box;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.translate-key-input:focus {
  outline: none;
  border-color: rgba(73, 177, 245, .8);
  box-shadow: 0 0 0 3px rgba(73, 177, 245, .15);
}

html[data-theme='dark'] .translate-key-input {
  border-color: rgba(120, 150, 200, .25);
  background: rgba(20, 26, 40, .55);
  color: rgba(235, 242, 250, .9);
}

.translate-modal-status {
  min-height: 18px;
  margin-top: 10px;
  font-size: 12px;
  color: rgba(90, 104, 130, .7);
}

.translate-modal-status.ok {
  color: #2e9e5b;
}

.translate-modal-status.err {
  color: #d9534f;
}

html[data-theme='dark'] .translate-modal-status {
  color: rgba(210, 220, 235, .7);
}

html[data-theme='dark'] .translate-modal-status.ok {
  color: #5fd58a;
}

html[data-theme='dark'] .translate-modal-status.err {
  color: #ff8a86;
}

.translate-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 16px;
}

.tm-btn {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(120, 150, 200, .35);
  background: rgba(255, 255, 255, .5);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: rgba(60, 76, 104, .9);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.tm-btn:hover {
  background: rgba(255, 255, 255, .7);
  color: var(--theme-color, #49b1f5);
}

.tm-save {
  background: linear-gradient(135deg, rgba(73, 177, 245, .9), rgba(59, 130, 246, .9));
  border-color: transparent;
  color: #fff;
}

.tm-save:hover {
  background: linear-gradient(135deg, rgba(73, 177, 245, 1), rgba(59, 130, 246, 1));
  color: #fff;
}

.tm-clear {
  color: rgba(180, 70, 70, .85);
  border-color: rgba(200, 100, 100, .3);
}

html[data-theme='dark'] .tm-btn {
  background: rgba(30, 38, 54, .5);
  border-color: rgba(120, 150, 200, .2);
  color: rgba(230, 238, 248, .88);
}

html[data-theme='dark'] .tm-btn:hover {
  background: rgba(40, 52, 72, .55);
}

html[data-theme='dark'] .tm-save {
  background: linear-gradient(135deg, rgba(73, 177, 245, .95), rgba(59, 130, 246, .95));
}

html[data-theme='dark'] .tm-clear {
  color: #ff8a86;
  border-color: rgba(200, 100, 100, .25);
}