/* 
 * Calculadora de Horas - Main CSS
 * 主要样式文件
 */

:root {
  --primary-color: #4a6cf7;
  --secondary-color: #6c757d;
  --accent-color: #ff9800;
  --light-color: #f8f9fa;
  --dark-color: #343a40;
  --success-color: #28a745;
  --info-color: #17a2b8;
  --warning-color: #ffc107;
  --danger-color: #dc3545;
  --body-bg: #ffffff;
  --body-color: #212529;
  --border-radius: 0.25rem;
  --box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
  --transition: all 0.3s ease;
}

/* 基本样式 */
body {
  font-family: 'Nunito', sans-serif;
  color: var(--body-color);
  background-color: var(--body-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a:hover {
  color: #3a56c5;
}

/* 导航栏样式 */
.navbar {
  background-color: #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  padding: 0.75rem 0;
}

.navbar-brand {
  font-weight: 700;
  color: var(--primary-color);
  font-size: 1.5rem;
}

.navbar-brand i {
  margin-right: 0.5rem;
  color: var(--primary-color);
}

.nav-link {
  font-weight: 600;
  padding: 0.5rem 1rem;
  color: var(--dark-color);
}

.nav-link:hover {
  color: var(--primary-color);
}

.nav-link i {
  margin-right: 0.25rem;
}

/* 英雄区域样式 */
.hero-section {
  background: linear-gradient(135deg, #f5f7ff 0%, #e0e6ff 100%);
  padding: 5rem 0 3rem;
  margin-top: 4rem;
  border-radius: 0 0 1rem 1rem;
}

.hero-section h1 {
  font-weight: 700;
  color: var(--dark-color);
  margin-bottom: 1.5rem;
}

.hero-section .lead {
  font-size: 1.25rem;
  color: var(--secondary-color);
  max-width: 800px;
  margin: 0 auto 2rem;
}

.hero-cta {
  background-color: var(--primary-color);
  color: white;
  font-weight: 600;
  padding: 0.75rem 2rem;
  border-radius: 2rem;
  transition: var(--transition);
  border: none;
}

.hero-cta:hover {
  background-color: #3a56c5;
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(74, 108, 247, 0.3);
}

/* 部分标题样式 */
.section-title {
  font-weight: 700;
  color: var(--dark-color);
  margin-bottom: 2rem;
  position: relative;
  padding-bottom: 1rem;
}

.section-title:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: var(--primary-color);
  border-radius: 2px;
}

/* 计算器样式 */
.calculator-card {
  background-color: white;
  border-radius: 1rem;
  box-shadow: var(--box-shadow);
  padding: 2rem;
  margin-bottom: 2rem;
}

.calculator-card .border {
  border-color: #e0e6ff !important;
  background-color: #f8f9ff;
}

.calculator-card h3 {
  color: var(--primary-color);
  font-weight: 600;
}

.calculator-card .form-check {
  margin-bottom: 1rem;
}

.calculator-card .form-check-input {
  width: 1.2em;
  height: 1.2em;
  margin-top: 0.2em;
}

.calculator-card .form-check-input:checked {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.calculator-card .form-control,
.calculator-card .form-select {
  border-color: #ced4da;
  padding: 0.5rem 0.75rem;
}

.calculator-card .form-control:focus,
.calculator-card .form-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.25rem rgba(74, 108, 247, 0.25);
}

.calculator-card input[type="date"],
.calculator-card input[type="time"] {
  width: 100%;
}

.calculator-card input[type="number"] {
  text-align: center;
}

.btn-calculate {
  background-color: var(--primary-color);
  color: white;
  font-weight: 600;
  padding: 0.75rem 2rem;
  border-radius: 0.5rem;
  transition: var(--transition);
  border: none;
  margin-top: 1.5rem;
}

.btn-calculate:hover {
  background-color: #3a56c5;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(74, 108, 247, 0.3);
}

.result-box {
  background-color: #f8f9fa;
  border-radius: 0.5rem;
  padding: 1.5rem;
  margin-top: 1.5rem;
  border-left: 4px solid var(--primary-color);
}

/* 功能卡片样式 */
.feature-card {
  background-color: white;
  border-radius: 1rem;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  padding: 2rem;
  margin-bottom: 2rem;
  transition: var(--transition);
  text-align: center;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.feature-title {
  font-weight: 700;
  margin-bottom: 1rem;
}

/* 如何使用部分样式 */
.how-to-use {
  background-color: #f8f9fa;
  padding: 4rem 0;
  border-radius: 1rem;
}

.step-card {
  background-color: white;
  border-radius: 1rem;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  padding: 2rem;
  margin-bottom: 2rem;
  position: relative;
}

.step-number {
  position: absolute;
  top: -15px;
  left: -15px;
  width: 40px;
  height: 40px;
  background-color: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
}

/* 文章卡片样式 */
.article-card {
  background-color: white;
  border-radius: 1rem;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  margin-bottom: 2rem;
  overflow: hidden;
  transition: var(--transition);
}

.article-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.article-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.article-content {
  padding: 1.5rem;
}

.article-title {
  font-weight: 700;
  margin-bottom: 1rem;
}

.article-meta {
  color: var(--secondary-color);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.article-excerpt {
  color: var(--secondary-color);
  margin-bottom: 1.5rem;
}

.read-more {
  color: var(--primary-color);
  font-weight: 600;
}

/* 页脚样式 */
footer {
  background-color: #f8f9fa;
  padding: 4rem 0 2rem;
  margin-top: 4rem;
}

footer h5 {
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--dark-color);
}

footer ul li {
  margin-bottom: 0.5rem;
}

footer ul li a {
  color: var(--secondary-color);
}

footer ul li a:hover {
  color: var(--primary-color);
}

/* 响应式设计 */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background-color: white;
    padding: 1rem;
    border-radius: 0.5rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-top: 1rem;
  }
  
  .hero-section {
    padding: 4rem 0 2rem;
    margin-top: 4rem;
  }
  
  .hero-section h1 {
    font-size: 2rem;
  }
}

@media (max-width: 767.98px) {
  .hero-section {
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
  }
  
  .hero-section h1 {
    font-size: 1.75rem;
  }
  
  .hero-section .lead {
    font-size: 1rem;
  }
  
  .calculator-tabs .nav-link {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
  }
}

/* 暗色模式切换 */
.dark-mode {
  --body-bg: #121212;
  --body-color: #e0e0e0;
  --dark-color: #f8f9fa;
  --light-color: #343a40;
}

.dark-mode .navbar,
.dark-mode .calculator-card,
.dark-mode .feature-card,
.dark-mode .step-card,
.dark-mode .article-card {
  background-color: #1e1e1e;
}

.dark-mode .hero-section {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

.dark-mode .form-control {
  background-color: #2a2a2a;
  border-color: #444;
  color: #e0e0e0;
}

.dark-mode .result-box {
  background-color: #2a2a2a;
}

.dark-mode footer {
  background-color: #1e1e1e;
}

.dark-mode .calculator-card {
  background-color: #1e1e1e;
}

.dark-mode .calculator-card .border {
  border-color: #2a2a2a !important;
  background-color: #252525;
}

.dark-mode .calculator-card .form-control,
.dark-mode .calculator-card .form-select {
  background-color: #2a2a2a;
  border-color: #444;
  color: #e0e0e0;
}

.dark-mode .calculator-card .form-check-label {
  color: #e0e0e0;
}

/* 主题切换按钮 */
.theme-toggle {
  cursor: pointer;
  width: 50px;
  height: 25px;
  background-color: #e0e0e0;
  border-radius: 25px;
  position: relative;
  transition: var(--transition);
}

.theme-toggle:before {
  content: '';
  position: absolute;
  width: 21px;
  height: 21px;
  border-radius: 50%;
  top: 2px;
  left: 2px;
  background-color: white;
  transition: var(--transition);
}

.dark-mode .theme-toggle {
  background-color: var(--primary-color);
}

.dark-mode .theme-toggle:before {
  left: 27px;
}

/* 月度计算器样式 */
.calendar-grid {
    display: grid;
    gap: 1px;
    background-color: #eee;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.calendar-header {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    background-color: #f8f9fa;
}

.calendar-body {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
}

.calendar-cell {
    padding: 8px;
    min-height: 80px;
    background-color: white;
    border: 1px solid #eee;
}

.calendar-cell.header {
    text-align: center;
    font-weight: bold;
    min-height: auto;
    padding: 12px 8px;
    background-color: #f8f9fa;
}

.calendar-cell.empty {
    background-color: #f8f9fa;
}

.date-number {
    font-size: 14px;
    margin-bottom: 4px;
}

.hours-input {
    width: 100%;
    font-size: 14px;
}

.month-selector {
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .calendar-cell {
        min-height: 60px;
        padding: 4px;
    }
    
    .date-number {
        font-size: 12px;
    }
    
    .hours-input {
        font-size: 12px;
        padding: 2px 4px;
    }
}

/* 内容区域样式 */
.content-section {
    background-color: #fff;
    padding: 4rem 0;
}

.content-block {
    margin-bottom: 3rem;
}

.content-block:last-child {
    margin-bottom: 0;
}

.feature-list {
    list-style: none;
    padding-left: 0;
}

.feature-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
}

.feature-list li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.table-bordered {
    border-color: #e0e6ff;
}

.table-light {
    background-color: #f8f9ff;
}

.accordion-button:not(.collapsed) {
    background-color: #f8f9ff;
    color: var(--primary-color);
}

.accordion-button:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(74, 108, 247, 0.25);
}

.card {
    border-color: #e0e6ff;
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

.alert-info {
    background-color: #f8f9ff;
    border-color: #e0e6ff;
    color: var(--body-color);
}

/* 暗色模式适配 */
.dark-mode .content-section {
    background-color: #1e1e1e;
}

.dark-mode .card {
    background-color: #2a2a2a;
    border-color: #444;
}

.dark-mode .table {
    color: #e0e0e0;
}

.dark-mode .table-bordered {
    border-color: #444;
}

.dark-mode .table-light {
    background-color: #2a2a2a;
}

.dark-mode .accordion-button {
    background-color: #2a2a2a;
    color: #e0e0e0;
}

.dark-mode .accordion-button:not(.collapsed) {
    background-color: #3a3a3a;
    color: var(--primary-color);
}

.dark-mode .alert-info {
    background-color: #2a2a2a;
    border-color: #444;
    color: #e0e0e0;
}