/* ============================================================
   作品集 — 全局样式 & 四套马卡龙主题
   ============================================================ */

/* ---- 基础变量（春莓序曲 = 默认）---- */
:root {
  --primary:       #f2a7b0;
  --primary-soft:  #fde8ec;
  --primary-deep:  #d47884;
  --bg:            #fef9f9;
  --bg-alt:        #fdf0f2;
  --card:          rgba(255,255,255,0.78);
  --card-hover:    rgba(255,255,255,0.95);
  --text:          #4a3035;
  --text-secondary:#8a6870;
  --text-muted:    #b89aa0;
  --border:        rgba(242,167,176,0.28);
  --code-bg:       #2d2426;
  --radius-card:   24px;
  --radius-btn:    14px;
  --shadow-sm:     0 2px 16px rgba(200,140,150,0.07);
  --shadow-md:     0 4px 28px rgba(200,140,150,0.09);
  --shadow-lg:     0 8px 48px rgba(200,140,150,0.12);
  --section-gap:   100px;
  --max-width:     1200px;
}

/* ---- 主题 2：紫薯奶方 ---- */
.theme-purple-yam {
  --primary:       #c4b5d8;
  --primary-soft:  #ede4f5;
  --primary-deep:   #9a88b5;
  --bg:            #faf8fc;
  --bg-alt:        #f3edf8;
  --card:          rgba(255,255,255,0.78);
  --card-hover:    rgba(255,255,255,0.95);
  --text:          #383045;
  --text-secondary:#68607a;
  --text-muted:    #9890aa;
  --border:        rgba(196,181,216,0.28);
  --code-bg:       #262330;
}

/* ---- 主题 3：鲸落于海 ---- */
.theme-whale-fall {
  --primary:       #a8c8e0;
  --primary-soft:  #dceafa;
  --primary-deep:   #6a98b8;
  --bg:            #f6f9fc;
  --bg-alt:        #edf3f8;
  --card:          rgba(255,255,255,0.78);
  --card-hover:    rgba(255,255,255,0.95);
  --text:          #283848;
  --text-secondary:#587088;
  --text-muted:    #88a0b8;
  --border:        rgba(168,200,224,0.28);
  --code-bg:       #1e2832;
}

/* ---- 主题 4：竹露青提 ---- */
.theme-bamboo-dew {
  --primary:       #b8d4a8;
  --primary-soft:  #e2f2d8;
  --primary-deep:   #7aa868;
  --bg:            #f8fbf6;
  --bg-alt:        #eef5e8;
  --card:          rgba(255,255,255,0.78);
  --card-hover:    rgba(255,255,255,0.95);
  --text:          #304830;
  --text-secondary:#608060;
  --text-muted:    #90b090;
  --border:        rgba(184,212,168,0.28);
  --code-bg:       #1e281c;
}

/* ============================================================
   全局基础
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  transition: background 0.5s ease, color 0.5s ease;
}

/* 滚动条 */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 3px; }

/* ============================================================
   玻璃拟态卡片
   ============================================================ */
.glass-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: transform 0.35s ease, box-shadow 0.35s ease, background 0.5s ease, border-color 0.5s ease;
}
.glass-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  background: var(--card-hover);
}

/* 技能卡片点击缩放 */
.skill-card {
  transition: transform 0.2s ease, background 0.2s ease;
  cursor: pointer;
}
.skill-card:active {
  transform: scale(0.97);
  background: var(--card-hover);
}

/* ============================================================
   组件
   ============================================================ */
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary); color: var(--text);
  padding: 12px 28px; border-radius: var(--radius-btn);
  font-weight: 600; font-size: 0.9rem; letter-spacing: 0.02em;
  border: 1px solid var(--border); cursor: pointer;
  transition: transform 0.25s, box-shadow 0.25s, background 0.5s;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-primary:active { transform: scale(0.97); }

.tag {
  display: inline-block;
  font-size: 0.72rem; font-weight: 500;
  padding: 5px 14px; border-radius: 20px;
  background: var(--primary-soft); color: var(--text-secondary);
  letter-spacing: 0.03em;
  transition: background 0.5s, color 0.5s;
}

.section-badge {
  display: inline-block;
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.12em;
  color: var(--primary-deep); background: var(--primary-soft);
  padding: 5px 16px; border-radius: 20px;
  margin-bottom: 12px;
  transition: background 0.5s, color 0.5s;
}

.section-title {
  font-family: 'Noto Serif SC', 'STSong', 'Songti SC', serif;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 700; color: var(--text);
  margin-bottom: 8px;
  transition: color 0.5s;
}

.section-subtitle {
  font-size: 0.9rem; color: var(--text-secondary);
  margin-bottom: 48px;
  transition: color 0.5s;
}

/* ============================================================
   导航
   ============================================================ */
.nav-link {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color 0.3s;
}
.nav-link:hover { color: var(--text); }
.nav-link.active { color: var(--primary-deep); font-weight: 600; }

/* ============================================================
   主题切换圆点
   ============================================================ */
.theme-dot {
  width: 20px; height: 20px; border-radius: 50%;
  border: 2px solid transparent; cursor: pointer;
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
  flex-shrink: 0;
}
.theme-dot:hover { transform: scale(1.25); }
.theme-dot.active { border-color: var(--text); box-shadow: 0 0 0 3px var(--border); }

/* ============================================================
   动画
   ============================================================ */
@keyframes fadeInUp { from { opacity:0; transform:translateY(28px); } to { opacity:1; transform:translateY(0); } }
@keyframes pulse-dot { 0%,100% { box-shadow:0 0 0 0 rgba(0,0,0,0.08); } 50% { box-shadow:0 0 0 10px rgba(0,0,0,0); } }
@keyframes float { 0%,100% { transform:translateY(0px); } 50% { transform:translateY(-8px); } }
.anim-in { animation: fadeInUp 0.7s ease both; }
.pulse-dot { animation: pulse-dot 2.5s ease-in-out infinite; }
.float { animation: float 4s ease-in-out infinite; }

/* ============================================================
   代码块
   ============================================================ */
.code-block {
  background: var(--code-bg); color: #c9d1d9;
  border-radius: var(--radius-card); overflow-x: auto;
  font-family: 'Cascadia Code','JetBrains Mono','Fira Code',Consolas,monospace;
  font-size: 0.78rem; line-height: 1.85;
  transition: background 0.5s;
}
.code-block pre {
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: break-word;
}
.code-block .kw{color:#ff7b72}.code-block .fn{color:#d2a8ff}.code-block .str{color:#a5d6ff}
.code-block .cm{color:#8b949e}.code-block .num{color:#79c0ff}.code-block .tag{color:#7ee787}
.code-block .pro{color:#79c0ff}.code-block .tp{color:#ffa657}

/* ============================================================
   聊天窗口
   ============================================================ */
.chat-scroll { scrollbar-width: thin; scrollbar-color: var(--text-muted) transparent; }
.chat-scroll::-webkit-scrollbar { width: 4px; }
.chat-scroll::-webkit-scrollbar-track { background: transparent; }
.chat-scroll::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 2px; }

/* 缩略图滚动 */
.thumb-scroll { scrollbar-width: none; -ms-overflow-style: none; }
.thumb-scroll::-webkit-scrollbar { display: none; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 768px) {
  :root { --section-gap: 48px; --max-width: 100%; }
  .workbench-grid { flex-direction: column !important; }
  .workbench-left, .workbench-right {
    width: 100% !important;
    flex: 1 1 auto !important;
    max-height: none !important;
    min-width: 0 !important;
  }
  .code-block { font-size: 0.62rem; }
  .code-block pre { white-space: pre-wrap; word-break: break-word; }
  h1 { font-size: 1.8rem !important; }
  .section-title { font-size: 1.4rem !important; }
}

@media print {
  nav, .no-print, .theme-dot { display: none !important; }
}