/* 组件样式：按钮、表单、评分卡、Toast */

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s ease;
  min-height: 40px;
}
.btn:hover { background: var(--color-primary-dark); }
.btn:disabled {
  opacity: .55;
  cursor: not-allowed;
}
.btn-block { width: 100%; }
.btn-secondary {
  background: #fff;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-secondary:hover { background: var(--color-bg); border-color: var(--color-primary); color: var(--color-primary); }
.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: transparent;
}
.btn-ghost:hover { background: var(--color-primary-light); }
.btn-sm { padding: 6px 12px; font-size: 13px; min-height: 32px; }

/* 单选 / 选项组 */
.option-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}
@media (min-width: 640px) {
  .option-group { grid-template-columns: repeat(4, 1fr); }
}
.option-chip {
  position: relative;
  cursor: pointer;
  user-select: none;
}
.option-chip input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.option-chip span {
  display: block;
  text-align: center;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fff;
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: all .15s;
}
.option-chip input:checked + span {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
  font-weight: 500;
}
.option-chip:hover span { border-color: var(--color-primary); }

label.field-label {
  display: block;
  font-size: 14px;
  margin-bottom: 6px;
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* 评分卡 */
.score-card {
  background: linear-gradient(135deg, #1677ff 0%, #4096ff 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  margin-bottom: 16px;
  box-shadow: var(--shadow-md);
}
.score-card .total-label {
  font-size: 14px;
  opacity: .85;
  margin-bottom: 4px;
}
.score-card .total-score {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1px;
}
.score-card .total-score .unit {
  font-size: 18px;
  font-weight: 400;
  opacity: .85;
  margin-left: 4px;
}
.score-card .grade-tag {
  display: inline-block;
  margin-top: 6px;
  font-size: 13px;
  background: rgba(255,255,255,.18);
  padding: 2px 12px;
  border-radius: 12px;
}

.dimension-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: 16px;
}
@media (min-width: 640px) {
  .dimension-grid { grid-template-columns: repeat(3, 1fr); }
}
.dimension-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 14px;
}
.dimension-card .d-name {
  font-size: 13px;
  color: var(--color-text-muted);
}
.dimension-card .d-score {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-primary);
  margin: 4px 0;
}
.dimension-card .d-score .max {
  font-size: 13px;
  color: var(--color-text-muted);
  font-weight: 400;
}
.dimension-card .d-bar {
  height: 6px;
  background: var(--color-bg);
  border-radius: 3px;
  overflow: hidden;
  margin: 6px 0;
}
.dimension-card .d-bar .d-bar-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 3px;
  transition: width .4s ease;
}
.dimension-card .d-comment {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.55;
  margin-top: 6px;
}

/* 详细点评区域 */
.review-section {
  margin-top: 12px;
}
.review-section h3 {
  font-size: 15px;
  margin: 0 0 8px;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 6px;
}
.review-section h3::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 16px;
  background: var(--color-primary);
  border-radius: 2px;
}
.review-section .review-body {
  background: #fafbfc;
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text);
}
.review-section .review-body h2,
.review-section .review-body h3,
.review-section .review-body h4 {
  font-size: 14px;
  margin: 10px 0 4px;
}
.review-section .review-body p { margin: 4px 0; }
.review-section .review-body ul { margin: 4px 0; padding-left: 22px; }
.review-section .review-body li { margin: 2px 0; }
.review-section .review-body strong { color: var(--color-primary-dark); }
.review-section .review-body code {
  background: #fff;
  padding: 1px 5px;
  border-radius: 3px;
  border: 1px solid var(--color-border-light);
  font-size: 13px;
}

/* 流式打字机区域（评分前的实时输出） */
.stream-output {
  background: #fafbfc;
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 13px;
  font-family: ui-monospace, 'SF Mono', Consolas, monospace;
  color: var(--color-text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 240px;
  overflow-y: auto;
  border: 1px solid var(--color-border-light);
}
.stream-output:empty { display: none; }
.stream-output.streaming::after {
  content: '▋';
  color: var(--color-primary);
  animation: blink 1s infinite;
}
@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* Toast */
.app-toast {
  position: fixed;
  left: 50%;
  bottom: 60px;
  transform: translateX(-50%) translateY(20px);
  background: rgba(0,0,0,.82);
  color: #fff;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: all .25s;
  z-index: 9999;
  max-width: 80vw;
  text-align: center;
}
.app-toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.app-toast[data-type="error"] { background: var(--color-error); }
.app-toast[data-type="success"] { background: var(--color-accent); }

/* 错误提示框 */
.alert {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 12px;
}
.alert-error {
  background: #fff2f0;
  border: 1px solid #ffccc7;
  color: var(--color-error);
}
.alert-info {
  background: var(--color-primary-light);
  border: 1px solid #91caff;
  color: var(--color-primary-dark);
}

/* 空状态 */
.placeholder-text {
  color: var(--color-text-muted);
  font-size: 14px;
  text-align: center;
  padding: 24px;
}

/* 隐藏 */
.hidden { display: none !important; }

/* 写作字数计数 */
.char-count {
  text-align: right;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* ========== 我的学习 卡片 ========== */
.tracker-card {
  margin-bottom: 14px;
}
.tracker-card-inner {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  box-shadow: var(--shadow-sm);
}
.tracker-card-inner.empty { padding: 14px 16px; }
.tracker-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.tracker-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
}
.tracker-reset {
  font-size: 12px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 2px 10px;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all .15s;
}
.tracker-reset:hover {
  color: var(--color-error);
  border-color: var(--color-error);
}
.tracker-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 8px;
}
.tracker-stats > div {
  text-align: center;
  padding: 6px 4px;
  background: var(--color-bg);
  border-radius: 6px;
}
.tracker-stat-label {
  font-size: 11px;
  color: var(--color-text-muted);
}
.tracker-stat-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  margin-top: 2px;
}
.tracker-spark {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px dashed var(--color-border-light);
}
.tracker-spark-label {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}
.tracker-empty {
  text-align: center;
  font-size: 13px;
  color: var(--color-text-muted);
  margin: 8px 0 4px;
}
.tracker-modules {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px dashed var(--color-border-light);
}
.tracker-module-pill {
  font-size: 11px;
  padding: 2px 9px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--c) 12%, transparent);
  color: var(--c);
  border: 1px solid color-mix(in srgb, var(--c) 30%, transparent);
}
/* 兼容老浏览器（不支持 color-mix） */
@supports not (background: color-mix(in srgb, red, blue)) {
  .tracker-module-pill {
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-color: transparent;
  }
}