*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:Inter,system-ui,Segoe UI,Roboto,"Helvetica Neue",Arial;overflow:hidden;color:#d8e9ff;display:flex;align-items:center;justify-content:center}
#bg-canvas{position:fixed;inset:0;z-index:-2}
#page-bg{position:fixed;inset:0;z-index:-4;background-position:center;background-size:cover;background-repeat:no-repeat;transition:opacity 0.5s ease}
:root{--bg1:#05070a;--accent:#7ef0ff;--accent2:#9b7eff;--glass:rgba(255,255,255,0.06);--glass-2:rgba(255,255,255,0.03)}
body::before{content:"";position:fixed;inset:0;background:linear-gradient(120deg,rgba(3,16,33,0.85) 0%,rgba(8,20,38,0.8) 40%,rgba(11,5,36,0.85) 100%);z-index:-3}
.topbar{position:fixed;left:50%;transform:translateX(-50%);bottom:24px;width:fit-content;min-height:64px;display:flex;align-items:center;justify-content:center;padding:8px 20px;border-radius:24px;background-color:rgba(15,20,30,0.6);backdrop-filter:blur(16px) saturate(120%);box-shadow:0 12px 40px rgba(0,0,0,0.6);border:1px solid rgba(126,240,255,0.12);z-index:99999;overflow:hidden;transition:width 0.3s ease}
.topbar::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,0.05),rgba(255,255,255,0));z-index:-1;pointer-events:none}
.copy-btn{position:fixed;left:12px;top:12px;z-index:999999;background:linear-gradient(90deg,#ffffff11,#ffffff06);border:1px solid rgba(255,255,255,0.04);color:var(--accent);width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;cursor:pointer;backdrop-filter:blur(6px)}
.copy-btn.copied{background:linear-gradient(90deg,#7ef0ff,#9b7eff);color:#021122}
.topbar .left{display:flex;align-items:center;gap:12px;justify-content:center;position:relative;z-index:2}
.logo{width:44px;height:44px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;font-weight:800;color:#021122;box-shadow:0 6px 20px rgba(123,111,255,0.08)}
.dock{display:flex;gap:8px}
.dock-item{width:46px;height:46px;border-radius:10px;border:none;background:linear-gradient(180deg,transparent,rgba(255,255,255,0.01));display:flex;align-items:center;justify-content:center;color:var(--accent);font-size:18px;cursor:pointer;transition:transform .18s,box-shadow .18s,opacity .18s;opacity:0.72}
.dock-item.active{transform:translateY(-6px);box-shadow:0 16px 36px rgba(126,240,255,0.12),0 4px 10px rgba(0,0,0,0.6);opacity:1;background:linear-gradient(90deg,var(--accent),var(--accent2));color:#021122}
.dock-item:hover{transform:translateY(-4px);box-shadow:0 10px 28px rgba(126,240,255,0.08)}
.controls{display:flex;gap:8px;align-items:center}
.c-btn{background:transparent;border:1px solid rgba(255,255,255,0.03);padding:8px;border-radius:8px;color:#bfefff;cursor:pointer}
.avatar{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,#ffffff11,#ffffff06);display:flex;align-items:center;justify-content:center;color:var(--accent);font-weight:700}

.wrap{max-width:1100px;width:min(1100px,92%);margin:0;padding:20px;display:flex;flex-direction:column;align-items:center;max-height:72vh}
.panel{margin-bottom:30px}
.hero{height:360px;display:flex;align-items:center}
.hero .glass{width:100%;padding:36px;border-radius:16px;background:linear-gradient(135deg,rgba(255,255,255,0.03),rgba(255,255,255,0.02));backdrop-filter:blur(12px);box-shadow:inset 0 1px 0 rgba(255,255,255,0.02),0 10px 40px rgba(2,6,23,0.6);border:1px solid rgba(126,240,255,0.03)}

/* card panel: only the selected card is visible */
.card-panel{
  opacity:0;
  pointer-events:none;
  max-height:0;
  overflow:auto;
  transform:translateY(20px) scale(0.96);
  filter:blur(8px);
  padding:0;
  transition:
    opacity .35s cubic-bezier(0.32, 0.725, 0.32, 1),
    transform .35s cubic-bezier(0.32, 0.725, 0.32, 1),
    max-height .35s cubic-bezier(0.32, 0.725, 0.32, 1),
    padding .35s cubic-bezier(0.32, 0.725, 0.32, 1),
    filter .35s cubic-bezier(0.32, 0.725, 0.32, 1);
  width:100%
}
.card-panel.visible{
  opacity:1;
  pointer-events:auto;
  max-height:68vh;
  padding:36px;
  border-radius:16px;
  background:linear-gradient(135deg,rgba(255,255,255,0.03),rgba(255,255,255,0.02));
  backdrop-filter:blur(12px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.02),0 10px 40px rgba(2,6,23,0.6);
  border:1px solid rgba(126,240,255,0.03);
  transform:translateY(0) scale(1);
  filter:blur(0);
  width:min(920px,calc(100% - 40px));
  margin:0 auto;
  /* keep overflow consistent to avoid scrollbar flash during transition */
  overflow:auto;
  transition-duration: .5s; /* Slower entrance for elegance */
  transition-timing-function: cubic-bezier(0.18, 0.89, 0.32, 1.1); /* Slight bounce/elastic feel */
}

/* make scrollbars unobtrusive inside panels */
.card-panel::-webkit-scrollbar{width:8px;height:8px}
.card-panel::-webkit-scrollbar-thumb{background:rgba(158,231,255,0.06);border-radius:6px}
.card-panel{scrollbar-width:thin;scrollbar-color:rgba(158,231,255,0.06) transparent}

.card-panel .glass{background:transparent;padding:0}
.hero h1{font-size:34px;margin:0 0 8px;color:#ecf8ff}
.tagline{color:#9fdcff;margin:0 0 12px}
.intro{color:#bcdff9;max-width:720px}
.intro{position:relative;max-width:720px}
.intro-inner{white-space:nowrap;display:block;overflow:hidden;max-width:100%;color:#bcdff9}
.intro-controls{position:absolute;right:8px;top:50%;transform:translateY(-50%);display:flex;gap:6px}
.intro-controls button{background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.03);color:#dff7ff;padding:6px;border-radius:8px;cursor:pointer}
.intro-controls{display:none}
.intro.scrollable .intro-controls{display:flex}
.intro.scrollable .intro-inner{overflow:auto}
.intro-inner::-webkit-scrollbar{height:8px}
.intro-inner::-webkit-scrollbar-thumb{background:rgba(158,231,255,0.16);border-radius:6px}

.section-link{position:absolute;right:10px;top:10px;color:#9fe9ff;opacity:0.9;text-decoration:none;font-size:14px}

.cta{margin-top:18px;display:flex;gap:12px}
.btn{padding:10px 16px;border-radius:12px;background:linear-gradient(90deg,var(--accent),var(--accent2));color:#021122;text-decoration:none;font-weight:600}
.btn.ghost{background:transparent;border:1px solid rgba(255,255,255,0.04);color:#cfeeff}

.about-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-top:14px}
.card{padding:16px;border-radius:12px;background:linear-gradient(180deg,rgba(255,255,255,0.02),rgba(255,255,255,0.01));border:1px solid rgba(255,255,255,0.02)}
.card h3{margin:0 0 6px;color:#eaf7ff}
.card p{margin:0;color:#bcdff9}

.friends .friend-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin-top:20px}

/* 友链卡片 - 采用项目卡片相同设计 */
.friend-card{
  position:relative;
  display:flex;
  gap:16px; 
  align-items:flex-start;
  padding:20px;
  min-height: 120px;
  border-radius:12px;
  background:linear-gradient(160deg, rgba(255,255,255,0.03), rgba(255,255,255,0));
  border:1px solid rgba(255,255,255,0.03);
  text-decoration:none;
  color:inherit;
  transition:all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  overflow:hidden;
  backdrop-filter:blur(4px);
}

.friend-card::before{
  content:"";position:absolute;
  top:0;bottom:0;left:0;width:3px;
  background:var(--accent);
  opacity:0;transition:opacity 0.3s;
}

.friend-card:hover{
  transform:translateY(-6px);
  background:linear-gradient(160deg, rgba(255,255,255,0.07), rgba(255,255,255,0.01));
  border-color:rgba(126,240,255,0.15);
  box-shadow:0 16px 36px rgba(0,0,0,0.25);
}
.friend-card:hover::before{opacity:1}

.friend-card .avatar{
  width:60px;height:60px;
  border-radius:12px;
  flex:0 0 60px;
  background:linear-gradient(135deg,#ffffff11,#ffffff06);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;color:var(--accent);
  border:1px solid rgba(255,255,255,0.05);
  overflow:hidden;
}

.friend-card .meta{flex:1;min-width:0;display:flex;flex-direction:column}
.friend-card .meta h3{
  margin:0 0 6px;
  font-size:18px;
  font-weight:700;
  color:#f0f8ff;
  letter-spacing:-0.5px;
}
.friend-card:hover .meta h3{color:var(--accent)}

.friend-card .meta p{
  margin:0;color:#aabccd;
  font-size:13px;
  line-height:1.5;
  opacity:0.9;
}
.friend-card .meta a{
  font-size:12px;
  color:rgba(255,255,255,0.4);
  text-decoration:none;
  margin-top:auto;
  display:block;
  text-align:right;
  font-family: "JetBrains Mono", monospace;
  letter-spacing: 0.5px;
  padding-top:8px;
}
.friend-card:hover .meta a{color:var(--accent)}

/* 项目卡片样式 - 纯文字极简版 */
.project-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin-top:20px}

.project-card{
  position:relative;
  display:flex;
  flex-direction:column;
  /* 让语言标签沉底 */
  justify-content:space-between;
  padding:24px;
  min-height: 160px;
  border-radius:12px;
  background:linear-gradient(160deg, rgba(255,255,255,0.03), rgba(255,255,255,0));
  border:1px solid rgba(255,255,255,0.03);
  text-decoration:none;
  color:inherit;
  transition:all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  overflow:hidden;
  backdrop-filter:blur(4px);
}

/* 悬停效果：左侧高亮条 + 上浮 + 发光 */
.project-card::before{
  content:"";position:absolute;
  top:0;bottom:0;left:0;width:3px;
  background:var(--accent);
  opacity:0;transition:opacity 0.3s;
}

.project-card:hover{
  transform:translateY(-6px);
  background:linear-gradient(160deg, rgba(255,255,255,0.07), rgba(255,255,255,0.01));
  border-color:rgba(126,240,255,0.15);
  box-shadow:0 16px 36px rgba(0,0,0,0.25);
}
.project-card:hover::before{opacity:1}

/* 标题样式 */
.project-meta h3{
  margin:0 0 10px;
  font-size:20px;
  font-weight:700;
  color:#f0f8ff;
  letter-spacing:-0.5px;
}
.project-card:hover .project-meta h3{color:var(--accent)}

/* 描述文字样式 */
.project-meta p{
  margin:0;color:#aabccd;
  font-size:14px;
  line-height:1.6;
  opacity:0.9;
  /* 限制多行文本 */
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}

/* 底部语言标签 */
.project-lang{
  margin-top:20px;
  padding-top:12px;
  border-top:1px solid rgba(255,255,255,0.04);
  font-size:12px;
  color:rgba(255,255,255,0.4);
  font-family: "JetBrains Mono", Consolas, monospace;
  text-transform: uppercase;
  letter-spacing: 1px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
/* 增加一个小箭头 decoration */
.project-lang::after{
  content:"↗";
  font-size:14px;
  opacity:0;
  transform:translate(-4px, 4px);
  transition:all 0.3s;
  color:var(--accent);
}
.project-card:hover .project-lang{color:var(--accent)}
.project-card:hover .project-lang::after{opacity:1; transform:translate(0,0)}

/* 清除旧的 clamping */

/* friend card tweaks */
.friend-card{align-items:flex-start}
.friend-card .avatar{flex:0 0 68px;width:68px;height:68px;border-radius:12px}
.friend-card .meta p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* typing caret - 优化版 */
.intro-inner{position:relative;display:inline-block;vertical-align:bottom}
.intro-inner.typing::after{
  content:"";display:inline-block;
  width:3px;height:1.2em;
  background:var(--accent);
  margin-left:5px;
  vertical-align:sub;
  animation:blink 1s step-end infinite;
  border-radius:2px;
  box-shadow:0 0 8px var(--accent);
}
@keyframes blink{0%,100%{opacity:1} 50%{opacity:0}}

.footer{padding:18px;border-radius:12px;background:linear-gradient(180deg,rgba(255,255,255,0.02),rgba(255,255,255,0.01));text-align:center;color:#9fcfe8}

/* small screens adaptation */
@media (max-width:768px){
  /* Enable native scrolling on mobile for better UX */
  body {
    display: block;
    overflow-y: auto;
    overflow-x: hidden;
    height: auto;
    min-height: 100%;
    -webkit-overflow-scrolling: touch;
  }

  /* Adjust Container */
  .wrap {
    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 20px 16px 100px 16px; /* Added bottom padding for navbar */
    max-height: none;
    display: block;
  }

  /* Expand panels to fit content naturally */
  .card-panel.visible {
    max-height: none;
    overflow: visible;
    width: 100%;
    margin: 0 0 24px 0;
    padding: 24px 20px;
    min-height: 40vh;
  }

  /* Topbar adjustment (Bottom Navigation) */
  .topbar {
    bottom: 20px;
    border-radius: 20px;
    padding: 8px 16px;
    width: auto;
    max-width: 90%;
    backdrop-filter: blur(20px) saturate(180%);
  }
  
  .logo{width:40px;height:40px}
  .dock-item{width:42px;height:42px; font-size: 18px;}

  .hero{height:auto; min-height: auto;}
  .hero h1 { font-size: 28px; }
  
  /* Force single column for grids to avoid squeezing */
  .about-grid, 
  .project-grid, 
  .friends .friend-list {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  /* Adjust Text Sizing for readability */
  p, li, .intro-inner {
    font-size: 16px;
    line-height: 1.6;
  }
  
  /* Ensure cards don't have fixed huge heights */
  .project-card {
    min-height: auto;
  }
}

/* subtle neon lines */
body::after{content:"";position:fixed;inset:0;pointer-events:none;background:
  radial-gradient(800px 200px at 10% 10%,rgba(126,240,255,0.04),transparent 12%),
  radial-gradient(600px 160px at 90% 80%,rgba(155,126,255,0.03),transparent 12%);
  z-index:-1}

/* focus styles */
.dock-item:focus{outline:2px solid rgba(126,240,255,0.12);outline-offset:3px}