/* ============================================
   个人作品集 — 极简现代风（侧边栏 + 搜索 + 分页版）
   ============================================ */

/* ---------- 重置 & 基础 ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #fafafa;
  --color-text: #1a1a1a;
  --color-text-secondary: #6b6b6b;
  --color-text-light: #9b9b9b;
  --color-border: #e8e8e8;
  --color-primary: #1a1a1a;
  --color-accent: #6366f1;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.1);
  --radius: 10px;
  --radius-lg: 14px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --topbar-height: 56px;
  --footer-height: 36px;
  --sidebar-width: 240px;
  --max-width: 1600px;
}

html {
  font-size: 15px;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ---------- 顶部栏 ---------- */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--topbar-height);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
  flex-shrink: 0;
}

.topbar-inner {
  max-width: 100%;
  padding: 0 32px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-mark {
  font-family: "JetBrains Mono", monospace;
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
}

.topbar-name {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.name-main {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.name-sub {
  font-size: 11px;
  color: var(--color-text-light);
}

.topbar-phone {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 6px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  transition: var(--transition);
}

.topbar-phone:hover {
  border-color: var(--color-text);
  background: var(--color-text);
  color: #fff;
}

.topbar-phone:hover svg {
  color: #fff;
}

.topbar-phone svg {
  color: var(--color-text-secondary);
  transition: var(--transition);
}

/* ========== 布局 ========== */
.layout {
  display: flex;
  flex: 1;
  padding-top: var(--topbar-height);
  padding-bottom: var(--footer-height);
  min-height: 0;
  overflow: hidden;
}

/* ========== 左侧边栏 ========== */
.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  border-right: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-search {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
  position: relative;
}

.sidebar-search svg {
  color: var(--color-text-light);
  flex-shrink: 0;
}

.sidebar-search input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 13px;
  color: var(--color-text);
  outline: none;
  min-width: 0;
}

.sidebar-search input::placeholder {
  color: var(--color-text-light);
}

#searchClear {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border: none;
  background: var(--color-border);
  border-radius: 50%;
  cursor: pointer;
  flex-shrink: 0;
  color: var(--color-text-secondary);
  transition: var(--transition);
  padding: 0;
}

#searchClear:hover {
  background: var(--color-text-secondary);
  color: #fff;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 8px 0;
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  font-size: 13px;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: var(--transition);
  border-left: 2px solid transparent;
  user-select: none;
  line-height: 1.3;
}

.sidebar-item:hover {
  background: #fff;
  color: var(--color-text);
}

.sidebar-item.active {
  background: #fff;
  color: var(--color-accent);
  border-left-color: var(--color-accent);
  font-weight: 600;
}

.sidebar-item.hidden {
  display: none;
}

.sidebar-item-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--gradient, var(--color-border));
}

.sidebar-item-text {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-empty {
  padding: 24px 16px;
  text-align: center;
  font-size: 13px;
  color: var(--color-text-light);
}

/* ========== 主内容 ========== */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
}

.main-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px clamp(20px, 2vw, 36px) 0;
  width: 100%;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* ========== 简介条 ========== */
.intro-bar {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 12px;
  flex-wrap: wrap;
  flex-shrink: 0;
}

.intro-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.intro-desc {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

/* ========== 项目网格 ========== */
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: 1fr 1fr;
  gap: 14px;
  flex: 1;
  min-height: 0;
}

.project-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  min-height: 0;
  animation: cardIn 0.4s cubic-bezier(0.4, 0, 0.2, 1) both;
}

@keyframes cardIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.project-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.project-thumb {
  position: relative;
  height: 72px;
  flex-shrink: 0;
  background: var(--gradient, linear-gradient(135deg, #667eea, #764ba2));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.project-thumb::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.08);
  transition: var(--transition);
}

.project-card:hover .project-thumb::before {
  background: rgba(0, 0, 0, 0);
}

.project-thumb-icon {
  color: rgba(255, 255, 255, 0.92);
  z-index: 1;
  transition: var(--transition);
}

.project-card:hover .project-thumb-icon {
  transform: scale(1.1);
}

.project-body {
  padding: 12px 14px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.project-title {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.project-desc {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: 8px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 8px;
}

.project-tech span {
  font-size: 10px;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 2px 7px;
  background: var(--color-bg-alt);
  border-radius: 4px;
  font-family: "JetBrains Mono", monospace;
}

.project-links {
  display: flex;
  gap: 14px;
  padding-top: 8px;
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}

.project-link {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: var(--transition);
}

.project-link:hover {
  color: var(--color-text);
  gap: 6px;
}

/* ========== 分页 ========== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 10px;
  padding-bottom: 6px;
  flex-shrink: 0;
}

.page-btn {
  min-width: 32px;
  height: 32px;
  border: 1.5px solid var(--color-border);
  border-radius: 8px;
  background: #fff;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
}

.page-btn:hover:not(:disabled):not(.active) {
  color: var(--color-text);
  border-color: var(--color-text);
}

.page-btn.active {
  background: var(--color-text);
  color: #fff;
  border-color: var(--color-text);
}

.page-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.page-btn svg {
  width: 14px;
  height: 14px;
}

.page-ellipsis {
  font-size: 13px;
  color: var(--color-text-light);
  padding: 0 2px;
  user-select: none;
}

.page-info {
  font-size: 12px;
  color: var(--color-text-light);
  margin-left: 12px;
  font-family: "JetBrains Mono", monospace;
}

/* ========== 页脚 ========== */
.footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: var(--footer-height);
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 12px;
  color: var(--color-text-light);
  z-index: 50;
  flex-shrink: 0;
}

.footer-dot {
  color: var(--color-border);
}

/* ========== 响应式 ========== */
@media (max-width: 1100px) {
  :root {
    --sidebar-width: 200px;
  }

  .sidebar-item {
    padding: 8px 12px;
    font-size: 12px;
    gap: 8px;
  }

  .sidebar-search {
    padding: 12px;
  }
}

@media (max-width: 960px) {
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --sidebar-width: 0px;
  }

  .sidebar {
    display: none;
  }

  .topbar-inner {
    padding: 0 16px;
  }

  .topbar-phone span {
    display: none;
  }

  .topbar-phone {
    padding: 6px 8px;
  }

  .main-inner {
    padding: 10px 16px 0;
  }

  .intro-title {
    font-size: 1.1rem;
  }

  .project-grid {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(3, 1fr);
    gap: 8px;
  }

  .project-thumb {
    height: 52px;
  }

  .project-body {
    padding: 10px 12px;
  }

  .project-desc {
    -webkit-line-clamp: 1;
  }

  .page-info {
    display: none;
  }

  .pagination {
    margin-top: 6px;
    padding-bottom: 4px;
  }
}

@media (max-width: 480px) {
  .name-sub {
    display: none;
  }

  .intro-bar {
    gap: 8px;
  }

  .project-grid {
    grid-template-rows: repeat(2, 1fr);
  }
}

/* ========== 减少动画偏好 ========== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}