/**
 * 数控报价计算器样式
 * 
 * 设计原则：
 * - 与 cf-calculators 统一风格
 * - 清晰的信息层次
 * - 响应式布局
 * - 无障碍友好
 */

/* ═══════════════════════════════════════
   主容器
   ═══════════════════════════════════════ */

.mach-calculator {
  color-scheme: dark;
  --calc-bg: #151821;
  --calc-field-bg: #1f2430;
  --calc-field-border: #374151;
  --calc-text: var(--text, #e4e4e7);
  --calc-muted: var(--text2, #9ca3af);
  --calc-accent: var(--accent, #6366f1);
  --calc-accent-strong: var(--accent-hover, #818cf8);
  --calc-danger: var(--error, #ef4444);
  --calc-warning-bg: color-mix(in srgb, var(--warning, #f59e0b) 14%, var(--surface, #1a1d27));
  --calc-warning-border: color-mix(in srgb, var(--warning, #f59e0b) 55%, var(--border, #2a2d3a));
  --calc-warning-text: color-mix(in srgb, var(--warning, #f59e0b) 35%, var(--text, #e4e4e7));
  --calc-result-bg: linear-gradient(135deg, color-mix(in srgb, var(--accent, #6366f1) 16%, var(--surface, #1a1d27)) 0%, color-mix(in srgb, var(--accent, #6366f1) 8%, var(--bg, #0f1117)) 100%);
  --calc-result-border: color-mix(in srgb, var(--accent, #6366f1) 48%, var(--border, #2a2d3a));
  --calc-result-divider: color-mix(in srgb, var(--accent, #6366f1) 28%, var(--border, #2a2d3a));
  --calc-highlight-bg: color-mix(in srgb, var(--accent, #6366f1) 14%, transparent);
  max-width: 800px;
  margin: 0 auto 2rem;
  padding: 0;
}

@media (prefers-color-scheme: light) {
  .mach-calculator {
    color-scheme: light;
    --calc-bg: #ffffff;
    --calc-field-bg: #ffffff;
    --calc-field-border: #d1d5db;
    --calc-text: #1a1a2e;
    --calc-muted: #6b7280;
    --calc-accent: #3b82f6;
    --calc-accent-strong: #2563eb;
    --calc-danger: #dc2626;
    --calc-warning-bg: #fffbeb;
    --calc-warning-border: #fde68a;
    --calc-warning-text: #78350f;
    --calc-result-bg: linear-gradient(135deg, #f0f7ff 0%, #e8f4fd 100%);
    --calc-result-border: #93c5fd;
    --calc-result-divider: #bfdbfe;
    --calc-highlight-bg: rgba(255, 255, 255, 0.6);
  }
}

/* ═══════════════════════════════════════
   输入区域
   ═══════════════════════════════════════ */

.calc-inputs {
  display: grid;
  grid-template-columns: 1fr;
  column-gap: clamp(1rem, 3vw, 2rem);
  row-gap: 0.9rem;
  margin-bottom: 1rem;
}

/* 非 sections 模式的字段间距 */
.calc-inputs > .calc-field {
  margin-bottom: 0.75rem;
}
.calc-inputs > .calc-field:last-child {
  margin-bottom: 0;
}

/* sections 模式：子元素 calc-section 完全脱离 grid 流，不受 gap 影响 */
.calc-inputs > .calc-section {
  grid-column: 1 / -1 !important;
  display: block !important;
  width: 100%;
  margin-bottom: 0.25rem !important;
}

/* sections 内的字段不受全局 2 列规则影响 */
.calc-inputs > .calc-section .calc-field {
  grid-column: auto !important;
}

/* 响应式：宽屏两列 */
@media (min-width: 640px) {
  .calc-inputs {
    grid-template-columns: 1fr 1fr;
  }
  .calc-inputs .calc-field:nth-child(odd) {
    grid-column: 1;
  }
  .calc-inputs .calc-field:nth-child(even) {
    grid-column: 2;
  }
  /* 跨两列的字段 */
  .calc-field.calc-full-width {
    grid-column: 1 / -1;
  }
}

/* ═══════════════════════════════════════
   字段样式
   ═══════════════════════════════════════ */

.calc-field {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.calc-field-label {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--calc-text);
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.calc-field-unit {
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--calc-muted);
  margin-left: 0.25rem;
}

.calc-required {
  color: var(--calc-danger);
  margin-left: 2px;
}

.calc-field-help {
  font-size: 0.8rem;
  color: var(--calc-muted);
  line-height: 1.4;
}

/* 输入框统一样式 */
.calc-input,
.calc-input[type="text"],
.calc-input[type="number"],
.calc-input[type="email"],
.calc-input[type="date"],
.calc-input[type="tel"] {
  width: 100%;
  min-width: 0;
  padding: 0.625rem 0.75rem;
  border: 1.5px solid var(--calc-field-border);
  border-radius: 0.5rem;
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--calc-field-bg);
  color: var(--calc-text);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  box-sizing: border-box;
}

.calc-input:focus {
  outline: none;
  border-color: var(--calc-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--calc-accent) 22%, transparent);
}

.calc-input::placeholder {
  color: color-mix(in srgb, var(--calc-muted) 80%, transparent);
}

/* Select 样式 */
.calc-field select {
  width: 100%;
  min-width: 0;
  padding: 0.625rem 0.75rem;
  border: 1.5px solid var(--calc-field-border);
  border-radius: 0.5rem;
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--calc-field-bg);
  color: var(--calc-text);
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  box-sizing: border-box;
}

.calc-field select:focus {
  outline: none;
  border-color: var(--calc-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--calc-accent) 22%, transparent);
}

.calc-field select option {
  background: var(--calc-field-bg);
  color: var(--calc-text);
}

/* ═══════════════════════════════════════
   Radio 和 Checkbox 组
   ═══════════════════════════════════════ */

.calc-radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.25rem;
}

.calc-radio-option {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  cursor: pointer;
  font-weight: 400;
  font-size: 0.95rem;
  padding: 0.375rem 0.75rem;
  border: 1.5px solid var(--calc-field-border);
  border-radius: 0.5rem;
  transition: all 0.15s ease;
}

.calc-radio-option:hover {
  border-color: var(--calc-accent);
  background: color-mix(in srgb, var(--calc-accent) 10%, var(--calc-bg));
}

.calc-radio-option input[type="radio"]:checked + * {
  /* 样式由 label 自身处理 */
}

.calc-radio-option:has(input:checked) {
  border-color: var(--calc-accent);
  background: color-mix(in srgb, var(--calc-accent) 14%, var(--calc-bg));
  color: var(--calc-accent-strong);
}

.calc-checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.95rem;
  margin-top: 0.25rem;
}

.calc-checkbox input[type="checkbox"] {
  width: 1.1rem;
  height: 1.1rem;
  cursor: pointer;
}

/* ═══════════════════════════════════════
   计算按钮
   ═══════════════════════════════════════ */

.calc-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.15s ease;
  line-height: 1.4;
}

.calc-button-primary {
  background: var(--calc-accent);
  color: #fff;
  width: 100%;
}

.calc-button-primary:hover {
  background: var(--calc-accent-strong);
}

.calc-button-primary:focus {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--calc-accent) 32%, transparent);
}

/* ═══════════════════════════════════════
   结果区域
   ═══════════════════════════════════════ */

.calc-results {
  margin-top: 1.5rem;
  padding: 1.5rem;
  background: var(--calc-result-bg);
  border: 1.5px solid var(--calc-result-border);
  border-radius: 0.75rem;
}

/* 单个输出字段 */
.calc-output {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--calc-result-divider);
  gap: 1rem;
  min-width: 0;
}

.calc-output:last-child {
  border-bottom: none;
}

.calc-output-label {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--calc-accent-strong);
  flex-shrink: 0;
  min-width: 0;
  overflow-wrap: anywhere;
}

.calc-output-value {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--calc-text);
  text-align: right;
  min-width: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.calc-output-unit {
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--calc-muted);
  margin-left: 0.25rem;
}

.calc-output-help {
  font-size: 0.8rem;
  color: var(--calc-muted);
  margin-top: 0.25rem;
}

/* 高亮输出 */
.calc-output.calc-highlight {
  background: var(--calc-highlight-bg);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  margin: 0 -0.25rem;
}

.calc-output.calc-highlight .calc-output-value {
  font-size: 1.3rem;
  color: var(--calc-accent-strong);
}

/* ═══════════════════════════════════════
   错误状态
   ═══════════════════════════════════════ */

.calc-error {
  padding: 0.75rem 1rem;
  background: color-mix(in srgb, var(--calc-danger) 12%, var(--calc-bg));
  border: 1.5px solid color-mix(in srgb, var(--calc-danger) 42%, var(--calc-field-border));
  border-radius: 0.5rem;
  color: var(--calc-danger);
  font-size: 0.9rem;
  font-weight: 500;
}

/* ═══════════════════════════════════════
   摘要输出
   ═══════════════════════════════════════ */

.calc-output-summary {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--calc-text);
  min-width: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* ═══════════════════════════════════════
   Sections 分组样式（每个 section 一行填满，自然堆叠）
   ═══════════════════════════════════════ */

.calc-section {
  display: block !important;
  width: 100%;
  margin-bottom: 0.3rem !important;
}

.calc-section:last-child {
  margin-bottom: 0;
}

/* Section Header（线分割标题） */
.calc-section-header {
  display: flex;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0;
}

.calc-section-title {
  font-weight: 600;
  font-size: 0.9rem;
  background: linear-gradient(135deg, #6366f1, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
  padding-right: 0.75rem;
  line-height: 1;
}

.calc-section-header::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--calc-field-border);
}

/* 折叠图标（隐藏） */
.calc-section-toggle {
  display: none;
}

/* Section Body（字段 grid，按屏幕宽度自适应列数） */
.calc-section-body {
  display: grid !important;
  grid-template-columns: 1fr !important;
  gap: 0.3rem !important;
  margin-bottom: 0 !important;
}

@media (min-width: 480px) {
  .calc-section-body {
    grid-template-columns: 1fr 1fr !important;
  }
}

@media (min-width: 768px) {
  .calc-section-body {
    grid-template-columns: 1fr 1fr 1fr !important;
  }
}

@media (min-width: 1024px) {
  .calc-section-body {
    grid-template-columns: repeat(4, 1fr) !important;
  }
}

/* 行业估算边界提示 */
.calc-industry-note {
  margin: 1rem 0 1.25rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--calc-warning-border);
  border-radius: 10px;
  background: var(--calc-warning-bg);
  color: var(--calc-warning-text);
  font-size: 0.92rem;
  line-height: 1.7;
}

.calc-industry-note strong {
  color: var(--calc-warning-text);
}

.calc-applicability {
  margin: 1rem 0 1.5rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
}

.calc-applicability h2 {
  margin: 0 0 0.75rem;
  font-size: 1.15rem;
}

.calc-applicability-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.calc-applicability h3 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  color: var(--text);
}

.calc-applicability ul {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--text2);
  line-height: 1.7;
  min-width: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.calc-price-config-btn {
  position: absolute;
  top: 0;
  right: 0;
  width: 1.75rem;
  height: 1.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--calc-field-border);
  border-radius: 999px;
  background: var(--calc-field-bg);
  color: var(--calc-muted);
  cursor: pointer;
  font-size: 0.9rem;
  line-height: 1;
  opacity: 0.72;
  transition: border-color 0.15s ease, color 0.15s ease, opacity 0.15s ease, transform 0.15s ease;
}

.calc-price-config-btn:hover,
.calc-price-config-btn:focus-visible {
  border-color: var(--calc-accent);
  color: var(--calc-accent-strong);
  opacity: 1;
  transform: translateY(-1px);
}

.calc-field:has(.calc-price-config-btn) .calc-field-label {
  padding-right: 2rem;
}

.calc-result-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.calc-action-button {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  padding: 0.45rem 0.75rem;
  cursor: pointer;
}

.calc-action-button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

@media print {
  body * {
    visibility: hidden;
  }

  .mach-calculator,
  .mach-calculator * {
    visibility: visible;
  }

  .mach-calculator {
    position: absolute;
    inset: 0;
    background: white;
    color: black;
  }

  .calc-inputs,
  .calc-result-actions,
  .calc-price-config-btn {
    display: none !important;
  }
}