/* css/coaching.css — AI 决策助手 + 爆款标题
   依赖 css/tokens.css
*/

/* ════════════════════════════════════════════════
   1. AI 决策助手 · 选项卡下方按钮
   ════════════════════════════════════════════════ */
.coach-bar {
  margin-top: var(--sp-3, 12px);
  padding: var(--sp-3, 12px);
  background: var(--bg-2, #10162a);
  border: 1px dashed var(--line-strong, rgba(120,140,200,0.22));
  border-radius: var(--r-md, 6px);
}

.coach-bar-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--sp-2, 8px);
  font-size: var(--fs-xs, 11px);
  letter-spacing: 0.06em;
}
.coach-bar-label {
  color: var(--text-2, #98a3bd);
  text-transform: uppercase;
}
.coach-bar-meta {
  color: var(--text-3, #5b667f);
}

.coach-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2, 8px);
  padding: 10px 16px;
  background: linear-gradient(135deg, rgba(76,175,80,0.10), rgba(76,175,80,0.04));
  border: 1px solid rgba(76,175,80,0.32);
  color: var(--ok, #4caf50);
  border-radius: var(--r-sm, 4px);
  font-size: var(--fs-sm, 13px);
  font-family: var(--font-sans);
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 500;
}
.coach-btn:hover:not(.disabled):not(.loading) {
  background: linear-gradient(135deg, rgba(76,175,80,0.18), rgba(76,175,80,0.08));
  border-color: var(--ok, #4caf50);
  box-shadow: 0 0 16px rgba(76,175,80,0.18);
}
.coach-btn.disabled,
.coach-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  background: var(--bg-2, #10162a);
  border-color: var(--line, rgba(120,140,200,0.12));
  color: var(--text-3, #5b667f);
}
.coach-btn.loading {
  cursor: progress;
  opacity: 0.7;
}
.coach-btn-icon { font-size: 16px; line-height: 1; }
.coach-btn-arrow { transition: transform 0.2s; }
.coach-btn:hover:not(.disabled) .coach-btn-arrow { transform: translateX(3px); }

/* 加载状态 */
.coach-result {
  margin-top: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, margin-top 0.3s ease;
}
.coach-result.show {
  margin-top: var(--sp-3, 12px);
  max-height: 400px;
}
.coach-loading {
  padding: var(--sp-3, 12px);
  text-align: center;
  color: var(--text-3, #5b667f);
  font-size: var(--fs-xs, 11px);
  letter-spacing: 0.08em;
}
.coach-dots::after {
  content: "...";
  display: inline-block;
  animation: coach-dots 1.4s steps(4, end) infinite;
}
@keyframes coach-dots {
  0%, 33% { opacity: 0.2; }
  66% { opacity: 0.6; }
  100% { opacity: 1; }
}
.coach-error {
  padding: var(--sp-3, 12px);
  background: rgba(239, 83, 80, 0.06);
  border: 1px solid rgba(239, 83, 80, 0.2);
  border-radius: var(--r-sm, 4px);
  color: var(--danger, #ef5350);
  font-size: var(--fs-sm, 13px);
  text-align: center;
}

/* AI 分析卡 */
.coach-card {
  padding: var(--sp-3, 12px) var(--sp-4, 16px);
  background: linear-gradient(180deg, rgba(76,175,80,0.06) 0%, var(--bg-1, #0a0e1a) 60%);
  border: 1px solid rgba(76,175,80,0.32);
  border-radius: var(--r-md, 6px);
  position: relative;
}
.coach-card-head {
  display: flex;
  align-items: center;
  gap: var(--sp-2, 8px);
  margin-bottom: var(--sp-2, 8px);
  padding-bottom: var(--sp-2, 8px);
  border-bottom: 1px solid var(--line, rgba(120,140,200,0.12));
}
.coach-card-icon {
  color: var(--ok, #4caf50);
  font-size: 14px;
  filter: drop-shadow(0 0 6px rgba(76,175,80,0.4));
}
.coach-card-title {
  flex: 1;
  font-size: var(--fs-sm, 13px);
  color: var(--text-1, #e6ebf5);
  font-weight: 600;
}
.coach-card-source {
  font-size: 10px;
  color: var(--text-3, #5b667f);
  letter-spacing: 0.06em;
  padding: 2px 6px;
  background: rgba(120,140,200,0.06);
  border-radius: var(--r-sm, 4px);
}
.coach-card-body {
  font-size: var(--fs-sm, 13px);
  color: var(--text-1, #e6ebf5);
  line-height: 1.7;
  margin-bottom: var(--sp-2, 8px);
}
.coach-card-foot {
  font-size: 10px;
  color: var(--text-3, #5b667f);
  letter-spacing: 0.04em;
  text-align: right;
}

/* ════════════════════════════════════════════════
   2. 终局页 · 爆款标题（朋友圈分享文）
   ════════════════════════════════════════════════ */
.headline-card {
  background: linear-gradient(180deg, var(--bg-2, #10162a) 0%, var(--bg-1, #0a0e1a) 100%);
  border: 1px solid var(--line-strong, rgba(120,140,200,0.22));
  border-radius: var(--r-lg, 10px);
  padding: var(--sp-4, 16px) var(--sp-5, 24px);
  margin-bottom: var(--sp-5, 24px);
  position: relative;
  overflow: hidden;
}
.headline-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--info, #4fc3f7) 30%, var(--info, #4fc3f7) 70%, transparent 100%);
  opacity: 0.55;
}

.headline-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sp-3, 12px);
}
.headline-title {
  display: flex;
  align-items: baseline;
  gap: var(--sp-2, 8px);
  font-size: var(--fs-h3, 17px);
  color: var(--text-1, #e6ebf5);
  font-weight: 600;
}
.headline-ax {
  color: var(--info, #4fc3f7);
  font-size: 14px;
}
.headline-sub {
  font-size: var(--fs-xs, 11px);
  color: var(--text-3, #5b667f);
  font-weight: 400;
  margin-left: var(--sp-2, 8px);
  letter-spacing: 0.04em;
}
.headline-gen {
  background: transparent;
  border: 1px solid var(--info, #4fc3f7);
  color: var(--info, #4fc3f7);
  padding: 6px 14px;
  border-radius: var(--r-sm, 4px);
  font-size: var(--fs-xs, 11px);
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: all 0.15s;
  text-transform: uppercase;
}
.headline-gen:hover:not(:disabled) {
  background: rgba(79,195,247,0.08);
  box-shadow: 0 0 12px rgba(79,195,247,0.18);
}
.headline-gen:disabled {
  opacity: 0.5;
  cursor: progress;
}

.headline-body {
  margin-top: var(--sp-3, 12px);
  padding-top: var(--sp-3, 12px);
  border-top: 1px solid var(--line, rgba(120,140,200,0.12));
}

/* 内容 */
.headline-content { animation: headline-fadein 0.4s ease; }
@keyframes headline-fadein {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.headline-meta-row {
  display: flex;
  gap: var(--sp-2, 8px);
  margin-bottom: var(--sp-3, 12px);
}
.headline-source {
  font-size: var(--fs-xs, 11px);
  color: var(--ok, #4caf50);
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border: 1px solid rgba(76,175,80,0.3);
  border-radius: var(--r-sm, 4px);
  background: rgba(76,175,80,0.06);
}
.headline-cached {
  font-size: 10px;
  color: var(--text-3, #5b667f);
  padding: 2px 6px;
  background: rgba(120,140,200,0.06);
  border-radius: var(--r-sm, 4px);
}

.headline-text {
  font-size: var(--fs-h2, 22px);
  color: var(--text-1, #e6ebf5);
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 var(--sp-3, 12px);
  letter-spacing: 0.01em;
}

.headline-body-text {
  font-size: var(--fs-body, 15px);
  color: var(--text-1, #e6ebf5);
  line-height: 1.75;
  margin: 0 0 var(--sp-4, 16px);
  padding: var(--sp-3, 12px) var(--sp-4, 16px);
  background: var(--bg-2, #10162a);
  border-left: 3px solid var(--info, #4fc3f7);
  border-radius: 0 var(--r-md, 6px) var(--r-md, 6px) 0;
}

.headline-actions {
  display: flex;
  gap: var(--sp-2, 8px);
  justify-content: flex-end;
}
.headline-copy,
.headline-regen {
  background: transparent;
  border: 1px solid var(--line, rgba(120,140,200,0.12));
  color: var(--text-2, #98a3bd);
  padding: 6px 14px;
  border-radius: var(--r-sm, 4px);
  font-size: var(--fs-xs, 11px);
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: all 0.15s;
  text-transform: uppercase;
}
.headline-copy:hover {
  border-color: var(--info, #4fc3f7);
  color: var(--info, #4fc3f7);
  background: rgba(79,195,247,0.08);
}
.headline-copy.copied {
  border-color: var(--ok, #4caf50);
  color: var(--ok, #4caf50);
  background: rgba(76,175,80,0.08);
}
.headline-regen:hover {
  border-color: var(--text-2, #98a3bd);
  color: var(--text-1, #e6ebf5);
}

.headline-error {
  padding: var(--sp-3, 12px);
  text-align: center;
  font-size: var(--fs-sm, 13px);
  color: var(--danger, #ef5350);
  background: rgba(239, 83, 80, 0.06);
  border: 1px solid rgba(239, 83, 80, 0.2);
  border-radius: var(--r-md, 6px);
}

/* 骨架屏 */
.headline-skeleton {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2, 8px);
}
.headline-skeleton .sk-line {
  height: 14px;
  background: linear-gradient(90deg, rgba(120,140,200,0.06) 0%, rgba(120,140,200,0.14) 50%, rgba(120,140,200,0.06) 100%);
  background-size: 200% 100%;
  border-radius: 3px;
  animation: sk-shimmer 1.6s ease-in-out infinite;
}
.headline-skeleton .sk-line.sk-line-title { height: 22px; width: 70%; }
.headline-skeleton .sk-line.short { width: 60%; }

/* ════════════════════════════════════════════════
   3. 移动适配
   ════════════════════════════════════════════════ */
@media (max-width: 720px) {
  .coach-bar { padding: var(--sp-2, 8px); }
  .coach-bar-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
  }
  .coach-btn { font-size: var(--fs-xs, 11px); padding: 8px 10px; }

  .headline-card { padding: var(--sp-3, 12px) var(--sp-4, 16px); }
  .headline-head {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-2, 8px);
  }
  .headline-title { font-size: var(--fs-body, 15px); }
  .headline-text { font-size: var(--fs-h3, 17px); }
  .headline-body-text { font-size: var(--fs-sm, 13px); }
  .headline-actions { flex-direction: column; }
  .headline-copy, .headline-regen { width: 100%; }
}