/**
 * 财富自由计算器 - 样式表
 * 响应式设计、移动优先
 */

:root {
  --primary-color: #0d6efd;
  --success-color: #198754;
  --danger-color: #dc3545;
  --warning-color: #ffc107;
  --info-color: #0dcaf0;
  --dark-color: #212529;
  --light-color: #f8f9fa;
  --border-radius: 0.5rem;
  --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

* {
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, "Microsoft YaHei", sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  padding: 20px 0;
  color: #333;
}

.container {
  background: white;
  border-radius: 1rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  padding: 30px;
}

/* ============ 标题样式 ============ */

#pageTitle {
  color: var(--primary-color);
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

#pageSubtitle {
  color: var(--success-color);
  font-size: 1.1rem;
  font-weight: 500;
  min-height: 1.5em;
}

/* ============ 卡片样式 ============ */

.card {
  border: 2px solid #e9ecef;
  box-shadow: var(--box-shadow);
  border-radius: var(--border-radius);
  transition: all 0.3s ease;
}

.card:hover {
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
}

.card-header {
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  font-weight: 600;
  padding: 1rem 1.5rem;
}

.card-body {
  padding: 1.5rem;
}

.card.border-primary {
  border-top-width: 4px;
  border-top-color: var(--primary-color);
}

.card.border-danger {
  border-top-width: 4px;
  border-top-color: var(--danger-color);
}

.card.border-success {
  border-top-width: 4px;
  border-top-color: var(--success-color);
}

/* ============ 表单样式 ============ */

.form-label {
  font-weight: 600;
  color: #555;
  margin-bottom: 0.5rem;
  display: block;
}

.form-control,
.input-group input {
  border: 1px solid #dee2e6;
  border-radius: 0.375rem;
  padding: 0.6rem 0.75rem;
  font-size: 1rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus,
.input-group input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
  outline: none;
}

.input-group {
  display: flex;
  gap: 0.25rem;
}

.input-group input {
  flex: 1;
  min-width: 0;
}

.input-group-text {
  background-color: #f8f9fa;
  border: 1px solid #dee2e6;
  padding: 0.6rem 0.75rem;
  font-weight: 600;
  color: #666;
  border-radius: 0.375rem;
}

.btn {
  font-weight: 600;
  border-radius: 0.375rem;
  padding: 0.6rem 1.2rem;
  transition: all 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 0.8rem 1.6rem;
  font-size: 1.1rem;
}

.btn-success {
  background-color: var(--success-color);
  border-color: var(--success-color);
}

.btn-success:hover {
  background-color: #157347;
  border-color: #157347;
}

.btn-outline-secondary {
  color: #6c757d;
  border-color: #dee2e6;
  background-color: white;
}

.btn-outline-secondary:hover {
  background-color: #f8f9fa;
  border-color: #adb5bd;
}

small {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.85rem;
}

/* ============ 表格样式 ============ */

.table {
  margin-bottom: 0;
  font-size: 0.95rem;
}

.table thead {
  background-color: var(--dark-color);
}

.table thead th {
  border-bottom: 2px solid #dee2e6;
  font-weight: 600;
  padding: 1rem;
  color: white;
  text-align: center;
}

.table tbody td {
  padding: 0.85rem 1rem;
  text-align: center;
  border-bottom: 1px solid #e9ecef;
  vertical-align: middle;
}

.table tbody tr {
  transition: background-color 0.2s ease;
}

.table tbody tr:hover {
  background-color: #f8f9fa !important;
}

.table-light {
  background-color: #f8f9fa;
}

.table-danger {
  background-color: #f8d7da;
  color: #842029;
}

.table-danger:hover {
  background-color: #f5c2c7 !important;
}

/* ============ 警告/提示框 ============ */

.alert {
  border-radius: 0.375rem;
  padding: 1rem;
  margin-bottom: 1rem;
  border: 1px solid transparent;
}

.alert-warning {
  background-color: #fff3cd;
  border-color: #ffecb5;
  color: #664d03;
}

.alert-info {
  background-color: #cfe2ff;
  border-color: #b6d4fe;
  color: #084298;
}

.alert-danger {
  background-color: #f8d7da;
  border-color: #f5c2c7;
  color: #842029;
}

/* ============ 徽章和标签 ============ */

.badge {
  display: inline-block;
  padding: 0.35rem 0.65rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 0.25rem;
  vertical-align: baseline;
}

.badge.bg-info {
  background-color: var(--info-color) !important;
  color: white;
}

/* ============ 图表区域 ============ */

#fireChart {
  margin-top: 20px;
  margin-bottom: 20px;
}

/* ============ 响应式设计 ============ */

@media (max-width: 768px) {
  .container {
    padding: 20px;
  }

  #pageTitle {
    font-size: 1.75rem;
  }

  .card-body {
    padding: 1rem;
  }

  .form-label {
    font-size: 0.95rem;
  }

  .form-control,
  .input-group input {
    font-size: 16px; /* iOS缩放避免 */
    min-height: 44px;
  }

  .table {
    font-size: 0.85rem;
  }

  .table thead th,
  .table tbody td {
    padding: 0.6rem 0.4rem;
  }

  .btn {
    padding: 0.5rem 1rem;
    font-size: 1rem;
  }

  .btn-lg {
    padding: 0.7rem 1.4rem;
    font-size: 1rem;
  }

  .input-group {
    flex-wrap: wrap;
  }

  .input-group input {
    flex-basis: 100%;
  }

  .input-group button {
    flex: 1;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 15px;
    border-radius: 0.75rem;
  }

  body {
    padding: 10px 0;
  }

  #pageTitle {
    font-size: 1.5rem;
  }

  .row {
    margin-left: -7.5px;
    margin-right: -7.5px;
  }

  .col-lg-4 {
    padding-left: 7.5px;
    padding-right: 7.5px;
  }

  .card {
    margin-bottom: 1rem;
  }

  .table {
    font-size: 0.75rem;
  }

  .table thead th,
  .table tbody td {
    padding: 0.5rem 0.25rem;
  }

  .btn-sm {
    padding: 0.3rem 0.6rem;
    font-size: 0.75rem;
  }
}

/* ============ 打印样式 ============ */

@media print {
  body {
    background: white;
  }

  .container {
    box-shadow: none;
    border: none;
  }

  .row:not(#resultSection, #chartSection) {
    display: none;
  }

  .btn {
    display: none;
  }
}

/* ============ 工具类 ============ */

.text-muted {
  color: #6c757d;
}

.text-center {
  text-align: center;
}

.fw-bold {
  font-weight: 700;
}

.mb-0 {
  margin-bottom: 0;
}

.mb-1 {
  margin-bottom: 0.25rem;
}

.mb-2 {
  margin-bottom: 0.5rem;
}

.mb-3 {
  margin-bottom: 1rem;
}

.mb-4 {
  margin-bottom: 1.5rem;
}

.mb-5 {
  margin-bottom: 3rem;
}

.mt-3 {
  margin-top: 1rem;
}

.mt-5 {
  margin-top: 3rem;
}

.d-flex {
  display: flex;
}

.flex-column {
  flex-direction: column;
}

.justify-content-center {
  justify-content: center;
}

.h-100 {
  height: 100%;
}

/* ============ 二维码区域 ============ */

.bg-gradient {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.qrcode-container {
  display: inline-block;
  padding: 15px;
  background-color: white;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  margin: 0 auto;
}

.qrcode-image {
  display: block;
  width: 200px;
  height: 200px;
  object-fit: contain;
  border-radius: 8px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.qrcode-image:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* ============ 移动端二维码样式 ============ */

@media (max-width: 768px) {
  .qrcode-image {
    width: 160px;
    height: 160px;
  }

  .qrcode-container {
    padding: 10px;
  }
}