/**
 * Layout Styles 布局样式
 * Playful Geometric Design System - Layout Components
 */

/* ========== Container 容器 ========== */

.container {
  max-width: 1280px;
  margin: 0 auto;
  background: var(--color-card);
  border-radius: var(--radius-xl);
  border: var(--border-width) solid var(--color-fg);
  box-shadow: var(--shadow-card);
  padding: var(--spacing-8);
}

/* ========== Header 头部 ========== */

.header {
  margin-bottom: var(--spacing-8);
  padding-bottom: var(--spacing-6);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--spacing-6);
  border-bottom: 3px dashed var(--color-border);
}

.header h1 {
  margin: 0 0 var(--spacing-4) 0;
  color: var(--color-fg);
  font-family: var(--font-display);
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: -0.02em;
  position: relative;
  display: inline-block;
}

.meta-info {
  color: var(--color-muted);
  font-size: var(--font-size-sm);
  line-height: 1.8;
  font-weight: var(--font-weight-medium);
}

.meta-info > div {
  margin-bottom: var(--spacing-2);
}

/* ========== Legend 图例 ========== */

.timeline-legend {
  display: flex;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  margin-top: var(--spacing-5);
}

.legend-item {
  display: inline-flex;
  align-items: center;
  background: var(--color-bg);
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-extruded-small);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-fg);
  transition: all var(--transition-base);
  min-height: 36px;
}

.legend-item:hover {
  transform: translateY(-2px);
  box-shadow: 8px 8px 16px rgba(163, 177, 198, 0.5),
    -8px -8px 16px rgba(255, 255, 255, 0.8);
}

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-right: var(--spacing-2);
  display: inline-block;
  box-shadow: inset 2px 2px 4px rgba(163, 177, 198, 0.3),
    inset -2px -2px 4px rgba(255, 255, 255, 0.5);
}

.legend-dot.source {
  background-color: var(--color-success);
}

.legend-dot.target {
  background-color: var(--color-warning);
}

.legend-dot.both {
  background-color: var(--color-info);
}

/* ========== Theme Switcher 主题切换器 ========== */

.theme-switcher {
  display: flex;
  align-items: center;
  background: var(--color-bg);
  border-radius: var(--radius-full);
  padding: var(--spacing-1);
  box-shadow: var(--shadow-inset);
  gap: var(--spacing-1);
}

.theme-button {
  border: none;
  background: transparent;
  color: var(--color-muted);
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  transition: all var(--transition-base);
  min-height: 36px;
  white-space: nowrap;
}

.theme-button:hover:not(.active) {
  color: var(--color-fg);
}

.theme-button.active {
  background: var(--color-accent);
  color: white;
  box-shadow: var(--shadow-extruded-small);
}

.theme-button .layout-icon {
  font-size: var(--font-size-base);
}

/* ========== Timeline 时间线 ========== */

.timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: var(--spacing-4) 0;
  width: 100%;
}

.commit-row {
  display: flex;
  margin-bottom: var(--spacing-4);
  position: relative;
  width: 100%;
}

/* 只在首次加载时播放动画 */
.commit-row.initial-load {
  animation: popIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* 状态改变时的动画 */
.commit-row.state-changed {
  animation: stateChange 0.3s ease-out;
}

@keyframes stateChange {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.02);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes popIn {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* ========== Commit Container 提交容器 ========== */

.commit-container {
  max-width: 75%;
  width: 75%;
  position: relative;
}

.commit-container.source {
  align-self: flex-start;
  margin-right: auto;
}

.commit-container.target {
  align-self: flex-end;
  margin-left: auto;
}

.commit-container.both {
  align-self: center;
  max-width: 90%;
  width: 90%;
  margin: 0 auto;
}

/* ========== Flat Layout 平铺布局 ========== */

body[data-layout="flat"] .timeline .commit-row {
  justify-content: center;
}

body[data-layout="flat"] .timeline .commit-container {
  max-width: 100%;
  width: 100%;
  margin: 0 auto;
  align-self: center;
}

body[data-layout="flat"] .timeline .commit-container.both {
  max-width: 100%;
}

/* ========== Filter Section 筛选区域 ========== */

.filter-section {
  margin-bottom: var(--spacing-6);
  padding: var(--spacing-6);
  background: var(--color-card);
  border-radius: var(--radius-xl);
  border: var(--border-width) solid var(--color-fg);
  box-shadow: var(--shadow-card);
}

.filter-buttons {
  display: flex;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-6);
  flex-wrap: wrap;
}

.sub-filter-section {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-5);
  margin: var(--spacing-5) 0 0 0;
  padding: var(--spacing-5);
  background: rgba(139, 92, 246, 0.05);
  border-radius: var(--radius-md);
  border: 2px dashed var(--color-accent);
  transition: all var(--transition-base);
  max-height: 200px;
  overflow: hidden;
}

.sub-filter-section.hidden {
  max-height: 0;
  margin: 0;
  padding: 0;
  opacity: 0;
  border: none;
}

/* ========== Search Section 搜索区域 ========== */

.search-section {
  margin-top: var(--spacing-6);
  padding: var(--spacing-5);
  background: rgba(251, 191, 36, 0.08);
  border-radius: var(--radius-md);
  border: 2px dashed var(--color-tertiary);
}

.search-container {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-5);
  gap: var(--spacing-3);
  flex-wrap: wrap;
}

.search-input {
  flex: 1 1 280px;
  min-width: 200px;
  max-width: 100%;
  padding-right: 44px;
}

.clear-search {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  min-width: 32px;
  min-height: 32px;
  border-radius: 50%;
  background: var(--color-secondary);
  color: white;
  border: var(--border-width) solid var(--color-fg);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: var(--font-weight-extrabold);
  box-shadow: var(--shadow-small);
  transition: all var(--transition-base);
  z-index: 10;
  opacity: 0;
  visibility: hidden;
}

.clear-search.visible {
  display: flex;
  opacity: 1;
  visibility: visible;
}

.clear-search:hover {
  background: var(--color-danger);
  transform: translateY(-50%) translate(-2px, -2px) rotate(-5deg);
  box-shadow: var(--shadow-small-hover);
}

.clear-search:active {
  transform: translateY(-50%) translate(1px, 1px) rotate(0deg);
  box-shadow: var(--shadow-pop-active);
}

.search-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  align-items: center;
  width: 100%;
}

/* ========== Command Section 命令区域 ========== */

.command-section {
  margin-top: var(--spacing-8);
  background: var(--color-card);
  padding: var(--spacing-8);
  border-radius: var(--radius-xl);
  border: var(--border-width) solid var(--color-fg);
  box-shadow: var(--shadow-card);
}

.command-section h3 {
  margin: 0 0 var(--spacing-5) 0;
  color: var(--color-fg);
  font-family: var(--font-display);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-extrabold);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-4);
  flex-wrap: nowrap;
}

.command-section h3 > span:first-child {
  white-space: nowrap;
}

.copy-button {
  flex-shrink: 0;
  white-space: nowrap;
}

.command-tabs {
  display: flex;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-6);
  background: var(--color-bg);
  padding: var(--spacing-2);
  border-radius: var(--radius-full);
  border: var(--border-width) solid var(--color-border);
}

.command-content {
  display: none;
}

.command-content.active {
  display: block;
}

.command-line {
  display: flex;
  align-items: center;
  margin: var(--spacing-3) 0;
  gap: var(--spacing-3);
  padding: var(--spacing-4) var(--spacing-5);
  background: linear-gradient(
    135deg,
    rgba(30, 41, 59, 0.98) 0%,
    rgba(15, 23, 42, 0.98) 100%
  );
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-accent);
  border: var(--border-width) solid var(--color-fg);
  box-shadow: var(--shadow-small);
  transition: all var(--transition-fast);
}

.command-line:hover {
  border-left-color: var(--color-accent-light);
  transform: translate(-1px, -1px);
  box-shadow: var(--shadow-small-hover);
}

.command-line pre {
  margin: 0;
  flex-grow: 1;
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  white-space: pre-wrap;
  overflow-x: auto;
  color: #e2e8f0;
  line-height: 1.7;
  font-weight: var(--font-weight-medium);
}

.command-line pre code {
  color: #8b5cf6;
  text-shadow: 0 0 10px rgba(139, 92, 246, 0.4);
  font-weight: var(--font-weight-bold);
}

/* Git 命令语法高亮 */
.git-keyword {
  color: #f472b6;
  font-weight: var(--font-weight-extrabold);
  text-shadow: 0 0 8px rgba(244, 114, 182, 0.5);
}

.git-subcommand {
  color: #8b5cf6;
  font-weight: var(--font-weight-bold);
  text-shadow: 0 0 10px rgba(139, 92, 246, 0.4);
}

.git-hash {
  color: #fbbf24;
  font-weight: var(--font-weight-bold);
  text-shadow: 0 0 8px rgba(251, 191, 36, 0.4);
}

.git-branch {
  color: #34d399;
  font-weight: var(--font-weight-semibold);
  text-shadow: 0 0 8px rgba(52, 211, 153, 0.3);
}

.git-comment {
  color: #94a3b8;
  font-style: italic;
  font-weight: var(--font-weight-normal);
}

#source-to-target-commands-container,
#target-to-source-commands-container {
  max-height: 450px;
  overflow-y: auto;
  padding: var(--spacing-4);
  background: rgba(139, 92, 246, 0.03);
  border-radius: var(--radius-md);
  border: 2px dashed var(--color-border);
}

/* ========== Responsive Design 响应式设计 ========== */

@media (max-width: 1024px) {
  .container {
    padding: var(--spacing-6);
  }

  .commit-container {
    max-width: 85%;
  }

  body[data-layout="flat"] .timeline .commit-container {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  body {
    padding: var(--spacing-3);
  }

  .container {
    padding: var(--spacing-5);
    border-radius: var(--radius-md);
  }

  .header {
    flex-direction: column;
    gap: var(--spacing-5);
    padding-bottom: var(--spacing-5);
  }

  .header h1 {
    font-size: var(--font-size-3xl);
  }

  .header h1::after {
    display: none;
  }

  .timeline-legend {
    gap: var(--spacing-3);
    justify-content: flex-start;
  }

  .legend-item {
    font-size: var(--font-size-xs);
    padding: var(--spacing-2) var(--spacing-4);
  }

  .theme-switcher {
    width: 100%;
  }

  .theme-button {
    flex: 1;
    justify-content: center;
    padding: var(--spacing-3) var(--spacing-4);
  }

  .timeline {
    padding: var(--spacing-4) 0;
  }

  .commit-container,
  .commit-container.source,
  .commit-container.target,
  .commit-container.both {
    max-width: 100%;
  }

  body[data-layout="flat"] .timeline .commit-container {
    max-width: 100%;
  }

  .filter-section {
    padding: var(--spacing-5);
  }

  .filter-buttons {
    gap: var(--spacing-2);
  }

  .search-container {
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-3);
  }

  .search-input {
    flex: 1;
    max-width: 100%;
    min-width: 100%;
  }

  .clear-search {
    right: 8px;
  }

  .search-options {
    gap: var(--spacing-3);
    flex-wrap: wrap;
  }

  .command-section {
    padding: var(--spacing-5);
    margin-top: var(--spacing-6);
  }

  .command-section h3 {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-3);
    font-size: var(--font-size-xl);
  }

  .command-tabs {
    flex-direction: column;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .container {
    padding: var(--spacing-4);
  }

  .header h1 {
    font-size: var(--font-size-2xl);
  }

  .filter-section,
  .command-section {
    padding: var(--spacing-4);
  }

  .legend-item {
    padding: var(--spacing-2) var(--spacing-3);
  }

  .legend-dot {
    width: 12px;
    height: 12px;
  }
}