/* articles.css — articles.html */
:root{--grape:#6C63FF;--coral:#FF6B6B;--sun:#FFD23F;--ink:#2B2D42;--muted:#8D99AE;--white:#fff;--cloud:#F8F9FF;--border:#E8EAF6}
    *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
    body{font-family:'Nunito',sans-serif;background:var(--cloud);color:var(--ink);min-height:100vh;display:flex;flex-direction:column}

    .hero{background:linear-gradient(135deg,#1A1347,#2D1B69 60%,#1a3560);padding:48px 40px 44px;text-align:center;position:relative;overflow:hidden}
    .hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 60% 40%,rgba(108,99,255,.3),transparent 60%);pointer-events:none}
    .hero-badge{display:inline-flex;align-items:center;gap:7px;background:rgba(255,210,63,.15);border:1.5px solid rgba(255,210,63,.3);border-radius:50px;padding:6px 18px;font-size:.75rem;font-weight:900;text-transform:uppercase;letter-spacing:.08em;color:var(--sun);margin-bottom:16px;position:relative}
    .hero h1{font-family:'Fredoka One',cursive;font-size:2.4rem;color:#fff;margin-bottom:10px;position:relative}
    .hero p{font-size:.95rem;color:rgba(255,255,255,.72);font-weight:700;max-width:500px;margin:0 auto 26px;line-height:1.7;position:relative}
    .search-bar{display:flex;max-width:460px;margin:0 auto;border-radius:50px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.25);position:relative}
    .search-bar input{flex:1;padding:13px 20px;border:none;font-family:'Nunito',sans-serif;font-size:.95rem;font-weight:700;color:var(--ink);outline:none}
    .search-bar button{background:var(--grape);color:#fff;border:none;padding:13px 24px;font-family:'Nunito',sans-serif;font-weight:900;font-size:.9rem;cursor:pointer;transition:.15s;white-space:nowrap}
    .search-bar button:hover{background:#5a52e0}

    .tabs-bar{background:var(--white);border-bottom:2px solid var(--border);position:sticky;top:70px;z-index:100;overflow-x:auto}
    .tabs-inner{display:flex;max-width:1140px;margin:0 auto;padding:0 40px}
    .tab-btn{padding:15px 18px;font-weight:800;font-size:.87rem;color:var(--muted);cursor:pointer;border:none;border-bottom:3px solid transparent;background:none;font-family:'Nunito',sans-serif;white-space:nowrap;transition:.15s;flex-shrink:0}
    .tab-btn:hover{color:var(--grape)}
    .tab-btn.on{color:var(--grape);border-bottom-color:var(--grape)}

    .page-grid{flex:1;display:grid;grid-template-columns:220px 1fr;max-width:1140px;margin:0 auto;width:100%;padding:0 40px 60px}

    .sidebar{padding:28px 0;border-right:1.5px solid var(--border)}
    .sb-hdr{font-size:.7rem;font-weight:900;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);padding:0 20px;margin-bottom:8px;margin-top:20px}
    .sb-hdr:first-child{margin-top:0}
    .sb-btn{display:flex;align-items:center;gap:8px;padding:9px 20px;font-size:.87rem;font-weight:800;color:var(--ink);cursor:pointer;background:none;border:none;border-left:3px solid transparent;width:100%;font-family:'Nunito',sans-serif;text-align:left;transition:.12s}
    .sb-btn:hover{background:#F5F3FF;color:var(--grape)}
    .sb-btn.on{background:#F0EEFF;color:var(--grape);border-left-color:var(--grape);font-weight:900}
    .sb-cnt{margin-left:auto;background:var(--cloud);border-radius:50px;padding:2px 9px;font-size:.7rem;font-weight:900;color:var(--muted)}
    .sb-btn.on .sb-cnt{background:#E4DFFF;color:var(--grape)}

    .articles-main{padding:28px 0 0 36px}
    .top-row{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:22px;flex-wrap:wrap;gap:10px}
    .page-title{font-family:'Fredoka One',cursive;font-size:1.5rem;color:var(--ink)}
    .page-count{font-size:.83rem;font-weight:800;color:var(--muted);margin-top:3px}
    .sort-wrap{display:flex;gap:6px}
    .sort-btn{padding:6px 14px;border-radius:50px;border:2px solid var(--border);background:var(--white);font-family:'Nunito',sans-serif;font-size:.78rem;font-weight:800;color:var(--muted);cursor:pointer;transition:.15s}
    .sort-btn.on,.sort-btn:hover{border-color:var(--grape);color:var(--grape);background:#F5F3FF}

    .group{margin-bottom:36px}
    .group-head{display:flex;align-items:center;gap:12px;padding-bottom:10px;border-bottom:2px solid var(--border);margin-bottom:2px}
    .group-ico{width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0}
    .group-name{font-size:1rem;font-weight:900;color:var(--ink)}
    .group-cnt{font-size:.75rem;font-weight:900;color:var(--muted);background:var(--cloud);border-radius:50px;padding:2px 10px;margin-left:4px}

    .art-row{display:flex;align-items:center;gap:14px;padding:13px 8px;border-bottom:1px solid var(--border);text-decoration:none;color:var(--ink);transition:.12s;border-radius:8px;margin:0 -8px}
    .art-row:last-child{border-bottom:none}
    .art-row:hover{background:#F5F3FF}
    .art-row:hover .art-title{color:var(--grape)}
    .art-num{width:26px;height:26px;border-radius:50%;background:var(--cloud);display:flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:900;color:var(--muted);flex-shrink:0}
    .art-body{flex:1;min-width:0}
    .art-title{font-weight:800;font-size:.93rem;line-height:1.4;margin-bottom:3px;transition:.12s}
    .art-meta{display:flex;align-items:center;gap:7px;flex-wrap:wrap}
    .tag{display:inline-flex;align-items:center;padding:2px 9px;border-radius:50px;font-size:.7rem;font-weight:900}
    .art-desc{font-size:.76rem;font-weight:700;color:var(--muted)}
    .art-arr{color:var(--border);font-size:.9rem;flex-shrink:0;transition:.2s}
    .art-row:hover .art-arr{color:var(--grape);transform:translateX(4px)}

    .empty{text-align:center;padding:70px 20px;color:var(--muted)}
    .empty .ico{font-size:2.8rem;margin-bottom:14px}
    .empty h3{font-weight:900;font-size:1.05rem;color:var(--ink);margin-bottom:7px}
    .empty p{font-weight:700;font-size:.88rem;line-height:1.6}

    @keyframes shimmer{to{background-position:-200% 0}}
    .skel{background:linear-gradient(90deg,#eee 25%,#f5f5f5 50%,#eee 75%);background-size:200% 100%;animation:shimmer 1.3s infinite;border-radius:6px}

    footer{background:#1A1347;color:rgba(255,255,255,.65);font-family:'Nunito',sans-serif}
    .ft-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;max-width:1140px;margin:0 auto;padding:44px 40px 28px}
    .ft-logo{font-family:'Fredoka One',cursive;font-size:1.4rem;color:#fff;text-decoration:none;display:block;margin-bottom:10px}
    .ft-logo .spark{color:var(--coral)}
    .ft-brand p{font-size:.83rem;line-height:1.7;font-weight:700}
    .ft-col h4{font-size:.72rem;font-weight:900;text-transform:uppercase;letter-spacing:.08em;color:rgba(255,255,255,.35);margin-bottom:12px}
    .ft-col ul{list-style:none}
    .ft-col li{margin-bottom:7px}
    .ft-col a{color:rgba(255,255,255,.6);text-decoration:none;font-size:.86rem;font-weight:700;transition:.15s}
    .ft-col a:hover{color:#fff}
    .ft-bottom{border-top:1px solid rgba(255,255,255,.08);max-width:1140px;margin:0 auto;padding:18px 40px;display:flex;align-items:center;justify-content:space-between;font-size:.78rem;font-weight:700;color:rgba(255,255,255,.3);flex-wrap:wrap;gap:8px}

    @media(max-width:860px){
      .page-grid{grid-template-columns:1fr;padding:0 16px 40px}
      .sidebar{display:none}
      .articles-main{padding:20px 0 0}
      .tabs-inner{padding:0 16px}
      .hero{padding:32px 16px 28px}
      .hero h1{font-size:1.8rem}
      .ft-inner{grid-template-columns:1fr 1fr;gap:24px;padding:32px 20px}
      .ft-bottom{padding:14px 20px}
    }