/* ========================================
   Project Ticker — 全局样式
   设计规范: 天蓝底 #E6F2F9, 纯黑字 #000000, 极简圆角卡片
   ======================================== */

/* === CSS Variables === */
:root {
  /* 主色调 */
  --bg-primary: #E6F2F9;
  --bg-card: #FFFFFF;
  --text-primary: #000000;
  --text-secondary: #666666;
  --text-tertiary: #999999;

  /* 状态色 */
  --status-inquiry: #93C5FD;
  --status-sampling: #3B82F6;
  --status-production: #F97316;
  --status-production-done: #86EFAC;
  --status-completed: #34C759;
  --status-follow-up: #FACC15;

  /* 功能色 */
  --color-primary: #007AFF;
  --color-danger: #FF3B30;
  --color-success: #34C759;

  /* 间距 (8px grid) */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-xxl: 32px;

  /* 圆角 */
  --radius-card: 12px;
  --radius-btn: 12px;
  --radius-input: 12px;
  --radius-modal: 16px;

  /* 字号 */
  --font-title: 20px;
  --font-card-title: 16px;
  --font-body: 14px;
  --font-small: 12px;
  --font-btn: 15px;

  /* 阴影 */
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-modal: 0 -4px 20px rgba(0, 0, 0, 0.15);

  /* 底部安全区 */
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

/* === Reset & Base === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  min-height: -webkit-fill-available;
  padding-bottom: calc(56px + var(--safe-bottom));
  -webkit-font-smoothing: antialiased;
  -webkit-overflow-scrolling: touch;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

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

.page {
  padding: var(--space-lg) var(--space-lg) calc(72px + var(--safe-bottom));
  min-height: 100vh;
}

.page-title {
  font-size: var(--font-title);
  font-weight: 600;
  margin-bottom: var(--space-lg);
  padding-top: var(--space-sm);
}

/* === Loading Screen === */
.loading-screen {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 80vh;
  color: var(--text-secondary);
  font-size: var(--font-body);
}

/* === Card === */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-card);
}

/* === Buttons === */
.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  border: none;
  border-radius: var(--radius-btn);
  font-size: var(--font-btn);
  font-weight: 500;
  cursor: pointer;
  text-align: center;
  transition: opacity 0.2s;
}
.btn:active { opacity: 0.7; }

.btn-primary {
  background: var(--color-primary);
  color: #FFFFFF;
  width: 100%;
}

.btn-danger {
  background: var(--color-danger);
  color: #FFFFFF;
}

.btn-block {
  display: block;
  width: 100%;
}

/* === Form === */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--font-small);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  border: 1px solid #E0E0E0;
  border-radius: var(--radius-input);
  font-size: var(--font-body);
  font-family: inherit;
  background: var(--bg-card);
  -webkit-appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-textarea {
  min-height: 80px;
  resize: vertical;
}

.form-row {
  display: flex;
  gap: var(--space-md);
}

.form-row > * {
  flex: 1;
}

/* === Status Badge === */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-small);
  font-weight: 500;
}

.status-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  flex-shrink: 0;
}

.status-dot.status-inquiry          { background: #93C5FD; }
.status-dot.status-sampling         { background: #3B82F6; }
.status-dot.status-production       { background: #F97316; }
.status-dot.status-production-done  { background: #86EFAC; }
.status-dot.status-completed        { background: #34C759; }
.status-dot.status-follow-up        { background: #FACC15; }

/* === Bottom Navigation === */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(56px + var(--safe-bottom));
  padding-bottom: var(--safe-bottom);
  background: var(--bg-card);
  border-top: 1px solid #E0E0E0;
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 900;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--space-sm) var(--space-xl);
}

.nav-item.active {
  color: var(--color-primary);
}

.nav-icon {
  font-size: 22px;
}

.nav-label {
  font-size: 10px;
  font-weight: 500;
}

/* === Header Bar === */
.header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-primary);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-back {
  font-size: var(--font-body);
  color: var(--color-primary);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm) 0;
}

.header-title {
  font-size: var(--font-card-title);
  font-weight: 600;
}

.header-menu {
  font-size: 22px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

/* === Modal === */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: flex-end;
  z-index: 1000;
  animation: fadeIn 0.2s;
}

.modal-content {
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  background: var(--bg-card);
  border-radius: var(--radius-modal) var(--radius-modal) 0 0;
  padding: var(--space-xl) var(--space-lg);
  animation: slideUp 0.3s;
}

.modal-title {
  font-size: var(--font-card-title);
  font-weight: 600;
  margin-bottom: var(--space-lg);
  text-align: center;
}

.modal-close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-secondary);
}

/* === Toast === */
.toast {
  position: fixed;
  top: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.8);
  color: #FFFFFF;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-card);
  font-size: var(--font-body);
  z-index: 2000;
  animation: fadeIn 0.2s;
}

/* === Empty State === */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-xxl);
  color: var(--text-secondary);
  font-size: var(--font-body);
  text-align: center;
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: var(--space-lg);
}

/* === Project Card === */
.project-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-card);
  cursor: pointer;
  transition: transform 0.1s;
}
.project-card:active { transform: scale(0.98); }

.project-card-status {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: var(--space-sm);
}

.project-card-topic {
  font-size: var(--font-card-title);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.project-card-meta {
  font-size: var(--font-body);
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.project-card-latest {
  font-size: var(--font-small);
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* === Timeline === */
.timeline-item {
  padding: var(--space-md) 0;
  border-left: 2px solid #E0E0E0;
  padding-left: var(--space-lg);
  margin-left: var(--space-sm);
  position: relative;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 20px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
}

.timeline-date {
  font-size: var(--font-small);
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.timeline-content {
  font-size: var(--font-body);
  color: var(--text-primary);
}

/* === Detail Section === */
.detail-section {
  margin-bottom: var(--space-lg);
}

.detail-section-title {
  font-size: var(--font-small);
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  font-size: var(--font-body);
}

.detail-label {
  color: var(--text-secondary);
}

.detail-value {
  font-weight: 500;
  text-align: right;
}

/* === Price Panel === */
.price-panel {
  background: #F8FAFB;
  border-radius: var(--radius-card);
  padding: var(--space-lg);
}

.price-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.price-item-label {
  font-size: var(--font-small);
  color: var(--text-secondary);
}

.price-item-value {
  font-size: var(--font-card-title);
  font-weight: 600;
}

.price-divider {
  border: none;
  border-top: 1px solid #E0E0E0;
  margin: var(--space-md) 0;
}

.profit-display {
  text-align: center;
  padding: var(--space-md);
}

.profit-label {
  font-size: var(--font-small);
  color: var(--text-secondary);
}

.profit-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-success);
}

/* === Category Tabs === */
.tab-bar {
  display: flex;
  background: var(--bg-card);
  border-radius: var(--radius-card);
  overflow: hidden;
  margin-bottom: var(--space-lg);
}

.tab-btn {
  flex: 1;
  padding: var(--space-md);
  border: none;
  background: transparent;
  font-size: var(--font-body);
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s;
}

.tab-btn.active {
  color: var(--color-primary);
  font-weight: 600;
  border-bottom: 2px solid var(--color-primary);
}

/* === Search Bar === */
.search-bar {
  margin-bottom: var(--space-lg);
}

.search-input {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  padding-left: 40px;
  border: none;
  border-radius: var(--radius-input);
  font-size: var(--font-body);
  background: var(--bg-card);
  box-shadow: var(--shadow-card);
}

.search-input:focus {
  outline: none;
}

.search-wrapper {
  position: relative;
}

.search-icon {
  position: absolute;
  left: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  font-size: 16px;
  color: var(--text-tertiary);
}

/* === Animations === */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

@keyframes pageSlideIn {
  from { opacity: 0; transform: translateX(16px); }
  to   { opacity: 1; transform: translateX(0); }
}

.fade-in {
  animation: pageSlideIn 0.25s ease-out;
}

/* === Tap Feedback === */
.card:active,
.company-card:active {
  background: #F5F5F5;
}

.btn:active {
  opacity: 0.75;
  transform: scale(0.97);
}

.nav-item:active {
  opacity: 0.6;
}

.context-menu-item:active {
  background: #F0F0F0;
}

.tab-btn:active {
  opacity: 0.6;
}

/* === Context Menu (右上角...) === */
.context-menu {
  position: absolute;
  top: 44px;
  right: var(--space-lg);
  background: var(--bg-card);
  border-radius: var(--radius-card);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
  z-index: 200;
  min-width: 180px;
  overflow: hidden;
}

.context-menu-item {
  display: block;
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  border: none;
  background: none;
  font-size: var(--font-body);
  text-align: left;
  cursor: pointer;
  color: var(--text-primary);
}

.context-menu-item:active {
  background: #F0F0F0;
}

.context-menu-item + .context-menu-item {
  border-top: 1px solid #F0F0F0;
}

/* === Contact Row & Tags === */
.contact-row:active { transform: scale(0.98); }

.contact-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 10px;
  font-weight: 600;
  flex-shrink: 0;
  min-width: 40px;
  text-align: center;
}

.tag-client {
  background: #E8F5E9;
  color: #2E7D32;
}

.tag-supplier {
  background: #FFF3E0;
  color: #E65100;
}

/* === Section Label === */
.section-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  padding: var(--space-md) 0 var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}