/* Tailwind CSS CDN */
@import url('https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css');

/* Custom Design Tokens */
:root {
  --color-primary: #07C160;
  --color-primary-dark: #1AAD19;
  --color-primary-light: #10AEFF;
  --color-bg: #F6F6F6;
  --color-bg-white: #FFFFFF;
  --color-bg-gray: #EDEDED;
  --color-text: #191919;
  --color-text-secondary: #576B95;
  --color-text-muted: #B2B2B2;
  --color-danger: #FA5151;
  --color-warning: #FFC300;
  --color-success: #07C160;
  --color-info: #10AEFF;
  --font-family: 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --phone-width: 375px;
  --phone-height: 812px;
  --statusbar-height: 44px;
  --navbar-height: 44px;
  --tabbar-height: 56px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

/* Phone Simulator Shell */
.phone-shell {
  width: var(--phone-width);
  height: var(--phone-height);
  background: var(--color-bg);
  border-radius: 40px;
  overflow: hidden;
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.35), 0 0 0 2px #333, inset 0 0 0 2px #555;
  position: relative;
  display: flex;
  flex-direction: column;
}

/* Status Bar */
.status-bar {
  height: var(--statusbar-height);
  background: var(--color-bg-white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text);
  flex-shrink: 0;
  z-index: 100;
}

.status-bar .time {
  font-weight: 700;
}

.status-bar .icons {
  display: flex;
  gap: 4px;
  align-items: center;
}

.status-bar .icons svg {
  width: 16px;
  height: 16px;
}

/* Navigation Bar */
.nav-bar {
  height: var(--navbar-height);
  background: var(--color-bg-white);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  flex-shrink: 0;
  position: relative;
  border-bottom: 0.5px solid rgba(0, 0, 0, 0.05);
  z-index: 100;
}

.nav-bar .nav-back {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 400;
  color: var(--color-text);
}

.nav-bar .nav-back svg {
  width: 20px;
  height: 20px;
}

.nav-bar .nav-right {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  font-size: 14px;
  font-weight: 400;
  color: var(--color-primary);
}

/* Page Content Area */
.page-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  position: relative;
}

.page-content::-webkit-scrollbar {
  display: none;
}

/* Page Views */
.page-view {
  display: none;
  width: 100%;
  min-height: 100%;
}

.page-view.active {
  display: block;
  animation: fadeIn 0.25s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

@keyframes slideOutLeft {
  from { transform: translateX(0); }
  to { transform: translateX(-100%); }
}

/* TabBar */
.tab-bar {
  height: var(--tabbar-height);
  background: var(--color-bg-white);
  display: flex;
  align-items: center;
  justify-content: space-around;
  border-top: 0.5px solid rgba(0, 0, 0, 0.08);
  flex-shrink: 0;
  padding-bottom: 4px;
  z-index: 100;
}

.tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  cursor: pointer;
  transition: all 0.2s ease;
  padding: 4px 8px;
  border-radius: 8px;
}

.tab-item:active {
  transform: scale(0.92);
}

.tab-item svg {
  width: 24px;
  height: 24px;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

.tab-item span {
  font-size: 10px;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

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

.tab-item.active span {
  color: var(--color-primary);
  font-weight: 600;
}

/* Common Card Styles */
.card {
  background: var(--color-bg-white);
  border-radius: 12px;
  padding: 16px;
  margin: 0 16px 12px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:active {
  transform: scale(0.98);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.card-subtitle {
  font-size: 12px;
  color: var(--color-text-muted);
}

/* Section */
.section {
  padding: 16px;
}

.section-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
  padding-left: 0;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 0 16px 16px;
}

.stat-card {
  background: var(--color-bg-white);
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
  text-align: center;
}

.stat-value {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
}

.stat-label {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* Badge / Tag */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 500;
  line-height: 1.6;
}

.badge-green {
  background: rgba(7, 193, 96, 0.1);
  color: var(--color-success);
}

.badge-yellow {
  background: rgba(255, 195, 0, 0.1);
  color: #E6A700;
}

.badge-red {
  background: rgba(250, 81, 81, 0.1);
  color: var(--color-danger);
}

.badge-blue {
  background: rgba(16, 174, 255, 0.1);
  color: var(--color-info);
}

.badge-gray {
  background: rgba(0, 0, 0, 0.05);
  color: var(--color-text-muted);
}

/* Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  gap: 6px;
}

.btn:active {
  transform: scale(0.96);
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

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

.btn-sm {
  padding: 6px 14px;
  font-size: 12px;
}

/* Float Action Button */
.fab {
  position: absolute;
  bottom: 20px;
  right: 20px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(7, 193, 96, 0.3);
  cursor: pointer;
  transition: all 0.2s ease;
  z-index: 50;
}

.fab:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 24px rgba(7, 193, 96, 0.4);
}

.fab:active {
  transform: scale(0.95);
}

.fab svg {
  width: 24px;
  height: 24px;
}

/* List Items */
.list-item {
  display: flex;
  align-items: center;
  padding: 14px 16px;
  background: var(--color-bg-white);
  border-bottom: 0.5px solid rgba(0, 0, 0, 0.05);
  cursor: pointer;
  transition: background 0.15s ease;
}

.list-item:active {
  background: var(--color-bg);
}

.list-item:last-child {
  border-bottom: none;
}

.list-item .arrow {
  margin-left: auto;
  color: var(--color-text-muted);
}

/* Progress Bar */
.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--color-bg);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar .fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
  transition: width 0.3s ease;
}

/* Modal / Popup */
.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 200;
  display: none;
  align-items: flex-end;
  justify-content: center;
}

.modal-overlay.active {
  display: flex;
  animation: fadeIn 0.2s ease-out;
}

.modal-content {
  background: var(--color-bg-white);
  border-radius: 16px 16px 0 0;
  padding: 20px 16px;
  width: 100%;
  max-height: 80%;
  overflow-y: auto;
  animation: slideUp 0.3s ease-out;
}

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

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.modal-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
}

.modal-close {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--color-text-muted);
}

/* Form Elements */
.form-group {
  margin-bottom: 16px;
}

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

.form-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-bg-gray);
  border-radius: 8px;
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-bg);
  outline: none;
  transition: border-color 0.2s ease;
}

.form-input:focus {
  border-color: var(--color-primary);
}

.form-select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-bg-gray);
  border-radius: 8px;
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-bg);
  outline: none;
  appearance: none;
}

/* Checkbox */
.checkbox-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 0.5px solid rgba(0, 0, 0, 0.05);
  cursor: pointer;
}

.checkbox-item:last-child {
  border-bottom: none;
}

.checkbox-box {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  border: 2px solid var(--color-bg-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.checkbox-item.checked .checkbox-box {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.checkbox-item.checked .checkbox-box::after {
  content: '✓';
  color: white;
  font-size: 14px;
  font-weight: 700;
}

.checkbox-label {
  font-size: 14px;
  color: var(--color-text);
}

/* Search Bar */
.search-bar {
  margin: 12px 16px;
  background: var(--color-bg);
  border-radius: 8px;
  padding: 8px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-bar svg {
  width: 16px;
  height: 16px;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.search-bar input {
  border: none;
  background: transparent;
  font-size: 14px;
  color: var(--color-text);
  outline: none;
  width: 100%;
}

.search-bar input::placeholder {
  color: var(--color-text-muted);
}

/* Timeline */
.timeline {
  padding: 0 16px;
}

.timeline-item {
  display: flex;
  gap: 12px;
  padding-bottom: 20px;
  position: relative;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 32px;
  bottom: 0;
  width: 1px;
  background: var(--color-bg-gray);
}

.timeline-item:last-child::before {
  display: none;
}

.timeline-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.timeline-body {
  flex: 1;
  min-width: 0;
}

.timeline-title {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.5;
}

.timeline-time {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* Tabs */
.tabs {
  display: flex;
  background: var(--color-bg-white);
  border-bottom: 0.5px solid rgba(0, 0, 0, 0.05);
}

.tab {
  flex: 1;
  text-align: center;
  padding: 12px 0;
  font-size: 14px;
  color: var(--color-text-muted);
  cursor: pointer;
  position: relative;
  transition: color 0.2s ease;
}

.tab.active {
  color: var(--color-primary);
  font-weight: 600;
}

.tab.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
}

/* Filter Bar */
.filter-bar {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  background: var(--color-bg-white);
}

.filter-select {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--color-bg-gray);
  border-radius: 8px;
  font-size: 13px;
  color: var(--color-text);
  background: var(--color-bg);
  appearance: none;
  outline: none;
}

/* Month Selector */
.month-selector {
  display: flex;
  gap: 0;
  padding: 12px 16px;
  overflow-x: auto;
  background: var(--color-bg-white);
  -webkit-overflow-scrolling: touch;
}

.month-selector::-webkit-scrollbar {
  display: none;
}

.month-item {
  padding: 6px 14px;
  border-radius: 16px;
  font-size: 13px;
  color: var(--color-text-muted);
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.month-item.active {
  background: var(--color-primary);
  color: white;
  font-weight: 500;
}

/* Avatar */
.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-info));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 16px;
  font-weight: 600;
  flex-shrink: 0;
}

.avatar-sm {
  width: 32px;
  height: 32px;
  font-size: 13px;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 60px 40px;
  color: var(--color-text-muted);
}

.empty-state svg {
  width: 64px;
  height: 64px;
  margin-bottom: 16px;
  opacity: 0.3;
}

.empty-state p {
  font-size: 14px;
}

/* Divider */
.divider {
  height: 8px;
  background: var(--color-bg);
}

/* Utility */
.text-primary { color: var(--color-primary) !important; }
.text-danger { color: var(--color-danger) !important; }
.text-warning { color: #E6A700 !important; }
.text-info { color: var(--color-info) !important; }
.text-muted { color: var(--color-text-muted) !important; }
.text-sm { font-size: 12px !important; }
.text-lg { font-size: 18px !important; }
.text-xl { font-size: 24px !important; }
.font-bold { font-weight: 700 !important; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.px-4 { padding-left: 16px; padding-right: 16px; }
.py-3 { padding-top: 12px; padding-bottom: 12px; }