:root {
  --bg: #0a0a0f;
  --bg-card: rgba(15,15,25,0.85);
  --bg-card-hover: rgba(20,20,40,0.95);
  --bg-input: rgba(15,15,25,0.6);
  --text: #e8e8f0;
  --text-dim: #8888aa;
  --accent: #4a9eff;
  --accent-glow: rgba(74,158,255,0.25);
  --border: rgba(74,158,255,0.2);
  --border-hover: rgba(74,158,255,0.55);
  --grad: linear-gradient(135deg,#4a9eff,#7c4dff);
  --radius: 12px;
  --radius-sm: 8px;
  --ease: 0.25s cubic-bezier(0.4,0,0.2,1);
  --font: 'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --mono: 'JetBrains Mono','Fira Code',monospace;
}
[data-theme="light"] {
  --bg: #f5f5fa;
  --bg-card: rgba(255,255,255,0.92);
  --bg-card-hover: #fff;
  --bg-input: rgba(0,0,0,0.04);
  --text: #1a1a2e;
  --text-dim: #666680;
  --accent: #2563eb;
  --accent-glow: rgba(37,99,235,0.12);
  --border: rgba(37,99,235,0.18);
  --border-hover: rgba(37,99,235,0.45);
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;transition:background var(--ease),color var(--ease)}
a{color:var(--accent);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--border-hover)}
button{cursor:pointer;border:none;background:none;font-family:inherit;color:inherit}
.container{max-width:1140px;margin:0 auto;padding:0 1.5rem}

/* nav */
.nav{position:sticky;top:0;z-index:100;height:56px;padding:0 1.5rem;display:flex;align-items:center;justify-content:space-between;background:rgba(10,10,15,0.85);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);transition:background var(--ease)}
[data-theme="light"] .nav{background:rgba(245,245,250,0.88)}
.nav-logo{display:flex;align-items:center;gap:0.4rem;font-size:1.2rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-logo svg{width:24px;height:24px}
.nav-links{display:flex;gap:1.25rem;align-items:center}
.nav-links a{color:var(--text-dim);font-size:0.85rem;font-weight:500;position:relative;transition:color var(--ease)}
.nav-links a::after{content:'';position:absolute;bottom:-3px;left:0;right:0;height:2px;background:var(--accent);transform:scaleX(0);transition:transform var(--ease)}
.nav-links a:hover,.nav-links a.active{color:var(--accent)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;gap:0.5rem;align-items:center}
.btn-icon{width:34px;height:34px;border-radius:var(--radius-sm);background:var(--bg-card);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;transition:all var(--ease)}
.btn-icon svg{width:16px;height:16px;color:var(--text-dim);transition:color var(--ease)}
.btn-icon:hover{border-color:var(--border-hover)}
.btn-icon:hover svg{color:var(--accent)}
.lang-dd{position:relative}
.lang-menu{position:absolute;top:calc(100% + 4px);right:0;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:0.4rem 0;min-width:110px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:all var(--ease);backdrop-filter:blur(20px)}
.lang-dd.open .lang-menu{opacity:1;visibility:visible;transform:translateY(0)}
.lang-opt{display:block;padding:0.45rem 1rem;color:var(--text-dim);font-size:0.82rem;transition:all var(--ease);cursor:pointer}
.lang-opt:hover{color:var(--accent);background:var(--accent-glow)}
.lang-opt.active{color:var(--accent);font-weight:600}
.nav-toggle{display:none}
@media(max-width:768px){
  .nav-toggle{display:flex}
  .nav-links{position:fixed;top:56px;left:0;right:0;background:var(--bg-card);backdrop-filter:blur(20px);flex-direction:column;padding:1rem 1.5rem;border-bottom:1px solid var(--border);transform:translateY(-110%);opacity:0;transition:all var(--ease)}
  .nav-links.open{transform:translateY(0);opacity:1}
  .nav-links a{padding:0.5rem 0;font-size:0.95rem}
}

/* cat bar */
.cat-bar{padding:1rem 0;border-bottom:1px solid var(--border);position:sticky;top:56px;z-index:90;background:var(--bg);transition:background var(--ease)}
[data-theme="light"] .cat-bar{background:var(--bg)}
.cat-tabs{display:flex;gap:0.5rem;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:0.25rem 0}
.cat-tabs::-webkit-scrollbar{display:none}
.cat-tab{display:inline-flex;align-items:center;gap:0.4rem;padding:0.5rem 1rem;border-radius:var(--radius-sm);font-size:0.82rem;font-weight:600;color:var(--text-dim);border:1px solid transparent;transition:all var(--ease);white-space:nowrap}
.cat-tab svg{width:16px;height:16px}
.cat-tab:hover{color:var(--accent);border-color:var(--border)}
.cat-tab.active{color:var(--accent);border-color:var(--accent);background:var(--accent-glow)}

/* search */
.search-bar{padding:1rem 0}
.search-wrap{position:relative;max-width:480px}
.search-wrap svg{position:absolute;left:1rem;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--text-dim);pointer-events:none}
.search-wrap input{width:100%;padding:0.7rem 1rem 0.7rem 2.8rem;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:0.9rem;font-family:var(--font);transition:all var(--ease);outline:none}
.search-wrap input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}
.search-wrap input::placeholder{color:var(--text-dim)}
.search-count{position:absolute;right:1rem;top:50%;transform:translateY(-50%);color:var(--text-dim);font-size:0.78rem;font-family:var(--mono)}

/* module list */
.mod-list{display:flex;flex-direction:column;gap:0.4rem;padding-bottom:4rem}
.mod-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:0.75rem 1rem;display:flex;align-items:center;gap:0.75rem;transition:all var(--ease)}
.mod-item:hover{border-color:var(--border-hover);background:var(--bg-card-hover)}
.mod-cat{width:3px;height:28px;border-radius:2px;flex-shrink:0}
.mod-info{flex:1;min-width:0}
.mod-name{font-weight:600;font-size:0.88rem;display:flex;align-items:center;gap:0.4rem}
.mod-name-en{color:var(--text-dim);font-size:0.78rem;font-weight:400;font-family:var(--mono)}
.mod-cfg-tag{font-size:0.68rem;padding:0.15rem 0.5rem;border-radius:4px;font-weight:600;flex-shrink:0}
.mod-cfg-tag.has{background:var(--accent-glow);color:var(--accent)}
.mod-cfg-tag.no{background:rgba(136,136,170,0.1);color:var(--text-dim)}

@media(max-width:640px){
  .mod-item{padding:0.6rem 0.75rem}
  .mod-name{font-size:0.82rem}
}