/* ===== Gitmaxhub - GitHub AI Trending ===== */
/* ===== CSS Variables ===== */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-card: #16161e;
    --bg-card-hover: #1c1c28;
    --border: #252536;
    --text-primary: #e4e4ed;
    --text-secondary: #9494a8;
    --text-muted: #5e5e76;
    --accent-cyan: #00e5ff;
    --accent-purple: #b44dff;
    --accent-green: #00e676;
    --accent-pink: #ff4081;
    --accent-orange: #ff9100;
    --accent-blue: #448aff;
    --glow-cyan: 0 0 20px rgba(0,229,255,0.3);
    --glow-purple: 0 0 20px rgba(180,77,255,0.3);
    --glow-green: 0 0 20px rgba(0,230,118,0.3);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --font-mono: 'SF Mono','Fira Code','Cascadia Code',monospace;
    --font-sans: -apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;
    --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
}

/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:var(--font-sans);
    background:var(--bg-primary);
    color:var(--text-primary);
    line-height:1.6;
    overflow-x:hidden;
    min-height:100vh;
}
body::before{
    content:'';
    position:fixed;
    inset:0;
    background-image:
        linear-gradient(rgba(180,77,255,0.03) 1px,transparent 1px),
        linear-gradient(90deg,rgba(180,77,255,0.03) 1px,transparent 1px);
    background-size:60px 60px;
    pointer-events:none;
    z-index:0;
}

/* ===== Navigation ===== */
.nav{
    position:sticky;
    top:0;
    z-index:100;
    background:rgba(10,10,15,0.85);
    backdrop-filter:blur(20px);
    border-bottom:1px solid var(--border);
    padding:0 24px;
}
.nav-inner{
    max-width:1300px;
    margin:0 auto;
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:60px;
}
.nav-brand{
    font-family:var(--font-mono);
    font-size:1.3rem;
    font-weight:700;
    text-decoration:none;
    background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple));
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
    letter-spacing:-0.5px;
}
.nav-links{display:flex;gap:8px;list-style:none}
.nav-links a{
    color:var(--text-secondary);
    text-decoration:none;
    padding:8px 16px;
    border-radius:var(--radius-sm);
    font-size:0.9rem;
    transition:var(--transition);
}
.nav-links a:hover,.nav-links a.active{color:var(--text-primary);background:var(--bg-card)}
.nav-update{
    font-family:var(--font-mono);
    font-size:0.75rem;
    color:var(--accent-green);
    padding:6px 12px;
    border:1px solid rgba(0,230,118,0.3);
    border-radius:20px;
}

/* ===== Hero ===== */
.hero{
    position:relative;
    z-index:1;
    text-align:center;
    padding:80px 24px 60px;
    max-width:900px;
    margin:0 auto;
}
.hero-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:var(--bg-card);
    border:1px solid var(--border);
    border-radius:50px;
    padding:6px 16px;
    font-size:0.85rem;
    color:var(--accent-cyan);
    margin-bottom:24px;
    font-family:var(--font-mono);
}
.hero-badge .dot{
    width:8px;height:8px;
    background:var(--accent-green);
    border-radius:50%;
    animation:pulse 2s infinite;
    box-shadow:0 0 8px var(--accent-green);
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.3}}
.hero h1{
    font-size:clamp(2.5rem,6vw,4rem);
    font-weight:800;
    line-height:1.15;
    margin-bottom:16px;
    letter-spacing:-1px;
}
.hero h1 .gradient{
    background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple));
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
}
.hero p{
    font-size:1.15rem;
    color:var(--text-secondary);
    max-width:600px;
    margin:0 auto 40px;
}
.stats-row{display:flex;justify-content:center;gap:40px;flex-wrap:wrap}
.stat-item{
    text-align:center;
    padding:20px 32px;
    background:var(--bg-card);
    border:1px solid var(--border);
    border-radius:var(--radius-lg);
    min-width:130px;
    transition:var(--transition);
}
.stat-item:hover{border-color:var(--accent-purple);box-shadow:var(--glow-purple)}
.stat-value{
    font-family:var(--font-mono);
    font-size:2.2rem;
    font-weight:700;
    background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple));
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
}
.stat-label{font-size:0.85rem;color:var(--text-muted);margin-top:4px}

/* ===== Main ===== */
.main{
    position:relative;
    z-index:1;
    max-width:1300px;
    margin:0 auto;
    padding:0 24px 80px;
}

/* ===== Breadcrumb ===== */
.breadcrumb{
    display:flex;
    align-items:center;
    gap:8px;
    padding:24px 0 32px;
    font-size:0.9rem;
    color:var(--text-muted);
}
.breadcrumb a{
    color:var(--text-secondary);
    text-decoration:none;
    transition:var(--transition);
}
.breadcrumb a:hover{color:var(--accent-cyan)}
.breadcrumb .sep{color:var(--text-muted)}

/* ===== Toolbar ===== */
.toolbar{display:flex;align-items:center;gap:12px;margin-bottom:32px;flex-wrap:wrap}
.search-box{flex:1;min-width:240px;position:relative}
.search-box input{
    width:100%;
    padding:12px 16px 12px 44px;
    background:var(--bg-card);
    border:1px solid var(--border);
    border-radius:var(--radius-md);
    color:var(--text-primary);
    font-size:0.95rem;
    transition:var(--transition);
    outline:none;
    font-family:var(--font-sans);
}
.search-box input:focus{border-color:var(--accent-cyan);box-shadow:var(--glow-cyan)}
.search-box input::placeholder{color:var(--text-muted)}
.search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-muted);font-size:1.1rem}
.filter-pills{display:flex;gap:8px;flex-wrap:wrap}
.filter-pill{
    padding:8px 16px;
    background:var(--bg-card);
    border:1px solid var(--border);
    border-radius:50px;
    color:var(--text-secondary);
    font-size:0.85rem;
    cursor:pointer;
    transition:var(--transition);
    font-family:var(--font-sans);
    white-space:nowrap;
}
.filter-pill:hover{border-color:var(--accent-purple);color:var(--text-primary)}
.filter-pill.active{background:rgba(180,77,255,0.15);border-color:var(--accent-purple);color:var(--accent-purple);box-shadow:var(--glow-purple)}
.result-count{font-size:0.85rem;color:var(--text-muted);font-family:var(--font-mono)}

/* ===== Project Grid ===== */
.projects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(380px,1fr));gap:20px}
.project-card{
    background:var(--bg-card);
    border:1px solid var(--border);
    border-radius:var(--radius-lg);
    padding:24px;
    transition:var(--transition);
    position:relative;
    overflow:hidden;
    cursor:pointer;
    text-decoration:none;
    color:inherit;
    display:block;
}
.project-card::before{
    content:'';
    position:absolute;
    top:0;left:0;
    width:100%;
    height:2px;
    background:linear-gradient(90deg,var(--accent-cyan),var(--accent-purple));
    opacity:0;
    transition:opacity 0.3s;
}
.project-card:hover{transform:translateY(-4px);border-color:var(--accent-purple);box-shadow:0 12px 40px rgba(180,77,255,0.1)}
.project-card:hover::before{opacity:1}
.card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px;gap:12px}
.card-title{font-size:1.1rem;font-weight:600;color:var(--text-primary);word-break:break-word}
.card-lang{
    font-family:var(--font-mono);
    font-size:0.72rem;
    padding:3px 10px;
    border-radius:12px;
    background:rgba(0,229,255,0.1);
    color:var(--accent-cyan);
    white-space:nowrap;
}
.card-desc{font-size:0.9rem;color:var(--text-secondary);margin-bottom:16px;line-height:1.5}
.card-tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:16px}
.card-tag{font-size:0.72rem;padding:3px 10px;border-radius:12px;font-family:var(--font-mono);font-weight:500}
.tag-agent{background:rgba(0,229,255,0.1);color:var(--accent-cyan)}
.tag-framework{background:rgba(180,77,255,0.1);color:var(--accent-purple)}
.tag-tool{background:rgba(0,230,118,0.1);color:var(--accent-green)}
.tag-model{background:rgba(255,145,0,0.1);color:var(--accent-orange)}
.tag-research{background:rgba(68,138,255,0.1);color:var(--accent-blue)}
.tag-multimodal{background:rgba(255,64,129,0.1);color:var(--accent-pink)}
.card-footer{display:flex;justify-content:space-between;align-items:center;padding-top:12px;border-top:1px solid var(--border)}
.card-stats{display:flex;gap:16px;font-family:var(--font-mono);font-size:0.8rem;color:var(--text-muted)}
.card-stats span{display:flex;align-items:center;gap:4px}
.card-arrow{color:var(--accent-cyan);font-size:1.1rem;opacity:0;transition:var(--transition)}
.project-card:hover .card-arrow{opacity:1}

/* ===== Detail Page ===== */
.detail-header{
    text-align:center;
    padding:60px 24px 40px;
    position:relative;
    z-index:1;
    max-width:800px;
    margin:0 auto;
}
.detail-header h1{
    font-size:clamp(2rem,5vw,2.8rem);
    font-weight:800;
    margin-bottom:12px;
    word-break:break-all;
}
.detail-fullname{
    font-family:var(--font-mono);
    color:var(--text-secondary);
    font-size:1rem;
    margin-bottom:16px;
}
.detail-meta{display:flex;justify-content:center;gap:24px;flex-wrap:wrap;margin-bottom:24px}
.detail-meta-item{display:flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:0.9rem;color:var(--text-secondary)}
.detail-tags{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-bottom:32px}
.detail-content{
    position:relative;
    z-index:1;
    max-width:800px;
    margin:0 auto;
    padding:0 24px 80px;
}
.detail-section{margin-bottom:40px}
.detail-section h2{
    font-size:1.3rem;
    margin-bottom:16px;
    color:var(--text-primary);
    padding-bottom:8px;
    border-bottom:1px solid var(--border);
}
.detail-desc{font-size:1.05rem;color:var(--text-secondary);line-height:1.8}
.detail-features{list-style:none;padding:0}
.detail-features li{
    padding:12px 16px;
    background:var(--bg-card);
    border:1px solid var(--border);
    border-radius:var(--radius-md);
    margin-bottom:8px;
    font-size:0.95rem;
    color:var(--text-secondary);
    transition:var(--transition);
}
.detail-features li:hover{border-color:var(--accent-purple)}
.detail-features li::before{content:'▸ ';color:var(--accent-cyan);margin-right:8px}
.detail-links{display:flex;gap:12px;flex-wrap:wrap}
.btn{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:12px 24px;
    border-radius:var(--radius-md);
    font-family:var(--font-mono);
    font-size:0.9rem;
    text-decoration:none;
    transition:var(--transition);
    cursor:pointer;
    border:none;
}
.btn-primary{
    background:linear-gradient(135deg,var(--accent-purple),var(--accent-blue));
    color:#fff;
    box-shadow:0 4px 16px rgba(180,77,255,0.3);
}
.btn-primary:hover{box-shadow:0 6px 24px rgba(180,77,255,0.5);transform:translateY(-1px)}
.btn-outline{
    border:1px solid var(--border);
    color:var(--text-primary);
    background:var(--bg-card);
}
.btn-outline:hover{border-color:var(--accent-cyan);color:var(--accent-cyan)}

/* ===== Trends ===== */
.trends-section{
    margin-top:60px;
    padding:40px;
    background:var(--bg-secondary);
    border:1px solid var(--border);
    border-radius:var(--radius-xl);
}
.trends-section h2{font-size:1.5rem;margin-bottom:8px}
.trends-section .subtitle{color:var(--text-muted);margin-bottom:32px;font-size:0.9rem}
.trends-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.trend-card{
    background:var(--bg-card);
    border:1px solid var(--border);
    border-radius:var(--radius-md);
    padding:24px;
    transition:var(--transition);
}
.trend-card:hover{border-color:var(--accent-cyan)}
.trend-icon{font-size:2rem;margin-bottom:12px}
.trend-card h3{font-size:1rem;margin-bottom:8px;color:var(--text-primary)}
.trend-card p{font-size:0.85rem;color:var(--text-secondary);line-height:1.5}

/* ===== Footer ===== */
.footer{
    position:relative;
    z-index:1;
    text-align:center;
    padding:40px 24px;
    border-top:1px solid var(--border);
    color:var(--text-muted);
    font-size:0.85rem;
}
.footer .brand{color:var(--accent-purple);font-family:var(--font-mono)}
.footer p{margin:4px 0}

/* ===== Empty State ===== */
.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted)}
.empty-state .icon{font-size:3rem;margin-bottom:16px}
.empty-state p{font-size:1rem}

/* ===== Back to Top ===== */
.back-top{
    display:inline-flex;
    align-items:center;
    gap:8px;
    color:var(--text-secondary);
    text-decoration:none;
    font-size:0.9rem;
    padding:8px 0;
    transition:var(--transition);
}
.back-top:hover{color:var(--accent-cyan)}

/* ===== Responsive ===== */
@media(max-width:768px){
    .projects-grid{grid-template-columns:1fr}
    .hero{padding:50px 16px 40px}
    .stats-row{gap:16px}
    .stat-item{padding:16px 20px;min-width:100px}
    .stat-value{font-size:1.6rem}
    .toolbar{flex-direction:column;align-items:stretch}
    .search-box{min-width:100%}
    .filter-pills{justify-content:center}
    .trends-section{padding:24px}
    .nav-inner{flex-wrap:wrap;height:auto;padding:12px 0;gap:8px}
    .detail-header{padding:40px 16px 30px}
    .detail-links{flex-direction:column}
    .detail-meta{gap:12px}
}
@media(max-width:480px){
    .hero h1{font-size:2rem}
    .project-card{padding:16px}
    .detail-header h1{font-size:1.6rem}
}

/* ===== Ad Banner ===== */
.ad-banner{
    position:relative;
    z-index:1;
    background:linear-gradient(135deg,rgba(180,77,255,0.08),rgba(0,229,255,0.05));
    border-bottom:1px solid rgba(180,77,255,0.25);
    padding:0 24px;
}
.ad-banner-inner{
    max-width:1300px;
    margin:0 auto;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:14px 0;
    text-decoration:none;
    color:inherit;
    gap:20px;
}
.ad-banner-inner:hover .ad-cta{
    color:var(--accent-purple);
    transform:translateX(4px);
}
.ad-banner-inner:hover{
    background:linear-gradient(135deg,rgba(180,77,255,0.12),rgba(0,229,255,0.08));
}
.ad-badge{
    flex-shrink:0;
    font-size:0.7rem;
    font-weight:600;
    color:var(--accent-purple);
    border:1px solid rgba(180,77,255,0.4);
    border-radius:var(--radius-sm);
    padding:2px 8px;
    text-transform:uppercase;
    letter-spacing:0.5px;
}
.ad-content{
    display:flex;
    align-items:center;
    gap:20px;
    flex:1;
}
.ad-text h3{
    font-size:0.95rem;
    font-weight:600;
    color:var(--text-primary);
    margin-bottom:3px;
}
.ad-text p{
    font-size:0.8rem;
    color:var(--text-secondary);
    margin-bottom:4px;
}
.ad-cta{
    font-size:0.8rem;
    color:var(--accent-cyan);
    font-weight:600;
    transition:var(--transition);
    display:inline-block;
}
.ad-qr{
    flex-shrink:0;
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:4px;
}
.ad-qr img{
    width:64px;
    height:64px;
    border-radius:var(--radius-sm);
    border:2px solid rgba(180,77,255,0.3);
}
.ad-qr span{
    font-size:0.65rem;
    color:var(--text-muted);
}
@media(max-width:768px){
    .ad-banner-inner{flex-wrap:wrap;gap:10px}
    .ad-content{flex-direction:column;align-items:flex-start;gap:10px}
    .ad-qr img{width:48px;height:48px}
}

/* ===== Floating Ad Card ===== */
.ad-float{
    position:fixed;
    right:-240px;
    top:50%;
    transform:translateY(-50%);
    z-index:200;
    background:var(--bg-card);
    border:1px solid rgba(180,77,255,0.3);
    border-radius:var(--radius-lg);
    box-shadow:0 4px 30px rgba(180,77,255,0.15),0 0 0 1px rgba(180,77,255,0.1);
    padding:4px;
    transition:right 0.4s cubic-bezier(0.34,1.56,0.64,1);
    opacity:0;
}
.ad-float--visible{
    right:16px;
    opacity:1;
}
.ad-float-close{
    position:absolute;
    top:-6px;
    right:-6px;
    width:22px;
    height:22px;
    border-radius:50%;
    border:1px solid var(--border);
    background:var(--bg-secondary);
    color:var(--text-muted);
    font-size:14px;
    line-height:1;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:center;
    z-index:1;
    transition:var(--transition);
}
.ad-float-close:hover{
    color:var(--text-primary);
    border-color:var(--accent-purple);
}
.ad-float-inner{
    display:flex;
    align-items:center;
    gap:12px;
    padding:10px 14px;
    text-decoration:none;
    color:inherit;
    border-radius:calc(var(--radius-lg) - 4px);
    transition:var(--transition);
}
.ad-float-inner:hover{
    background:rgba(180,77,255,0.08);
}
.ad-float-text{
    white-space:nowrap;
}
.ad-float-tag{
    font-size:0.6rem;
    font-weight:600;
    color:var(--accent-purple);
    border:1px solid rgba(180,77,255,0.4);
    border-radius:4px;
    padding:1px 6px;
    text-transform:uppercase;
    letter-spacing:0.3px;
}
.ad-float-title{
    font-size:0.85rem;
    font-weight:600;
    color:var(--text-primary);
    margin:4px 0 2px;
}
.ad-float-desc{
    font-size:0.7rem;
    color:var(--text-secondary);
}
.ad-float-qr img{
    width:52px;
    height:52px;
    border-radius:var(--radius-sm);
    border:2px solid rgba(180,77,255,0.25);
    display:block;
}
@media(max-width:768px){
    .ad-float--visible{right:8px}
    .ad-float-inner{gap:8px;padding:8px 10px}
    .ad-float-title{font-size:0.75rem}
    .ad-float-desc{font-size:0.65rem}
    .ad-float-qr img{width:40px;height:40px}
}

/* ===== Tools Page ===== */
.tools-hero{padding-top:60px}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:16px}
.tool-card{
    background:var(--bg-card);
    border:1px solid var(--border);
    border-radius:var(--radius-lg);
    padding:20px 24px;
    transition:var(--transition);
    text-decoration:none;
    color:inherit;
    display:flex;
    flex-direction:column;
    gap:12px;
    position:relative;
    overflow:hidden;
}
.tool-card::before{
    content:'';
    position:absolute;
    top:0;left:0;
    width:3px;
    height:100%;
    transform:scaleY(0);
    transition:transform 0.3s;
}
.tool-card:hover{transform:translateY(-3px);border-color:var(--accent-purple);box-shadow:0 8px 30px rgba(180,77,255,0.1)}
.tool-card:hover::before{transform:scaleY(1)}
.tool-card-top{display:flex;align-items:center;gap:14px}
.tool-icon{font-size:2rem;flex-shrink:0;width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:var(--bg-secondary);border-radius:var(--radius-md)}
.tool-info{display:flex;flex-direction:column;gap:4px}
.tool-name{font-size:1.05rem;font-weight:600;color:var(--text-primary);margin:0}
.tool-cat-badge{font-size:0.7rem;padding:2px 10px;border-radius:12px;display:inline-block;align-self:flex-start;font-weight:500}
.tool-desc{font-size:0.85rem;color:var(--text-secondary);line-height:1.5;margin:0;flex:1}
.tool-bottom{display:flex;justify-content:space-between;align-items:center;gap:8px}
.tool-tags{display:flex;gap:5px;flex-wrap:wrap}
.tool-tag{font-size:0.68rem;padding:2px 8px;border-radius:10px;background:rgba(180,77,255,0.08);color:var(--text-secondary);font-family:var(--font-mono)}
.tool-platforms{display:flex;gap:4px;flex-shrink:0}
.tool-platform-icon{font-size:0.8rem;opacity:0.6;transition:var(--transition)}
.tool-card:hover .tool-platform-icon{opacity:1}

@media(max-width:768px){
    .tools-grid{grid-template-columns:1fr}
    .tool-card{padding:16px}
}