@import url('https://fonts.googleapis.com/css2?family=Nunito+Sans:wght@400;600;700&family=Poppins:wght@700&family=Fira+Mono&display=swap');
:root{
  --primary:#005af0; --primary-hover:#0046c0;
  --main:#161617; --text:#48525c; --muted:#767676; --border:#ebeced;
  --bg:#fafafc; --card:#fefefe; --nav:#fefefe; --header:#fefefe;
  --nav-w:220px; --side-w:360px; --header-h:60px;
}
*{box-sizing:border-box} *::after,*::before{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;font-family:'Nunito Sans',sans-serif;font-size:14px;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none;transition:.2s} a:hover{color:var(--muted)}
h1,h2,h3,h4{font-family:'Poppins',sans-serif;color:var(--main);margin:0;line-height:1.3}
img{max-width:100%;display:block}
button,input,textarea,select{font:inherit}
@media screen and (min-width:768px){
  ::-webkit-scrollbar{-webkit-appearance:none;width:4px;height:5px}
  ::-webkit-scrollbar-track{background:transparent}
  ::-webkit-scrollbar-thumb{background:rgba(0,0,0,.15);border-radius:10px}
  ::-webkit-scrollbar-thumb:hover{background:rgba(0,0,0,.45)}
}
/* Header */
.header{position:fixed;top:0;left:0;width:100%;height:var(--header-h);background:var(--header);display:flex;gap:32px;align-items:center;padding:0 24px 0 20px;box-shadow:0 2px 10px rgba(0,0,0,.07);z-index:50}
.hamburger{display:none;flex-direction:column;justify-content:center;gap:4px;width:22px;height:20px;cursor:pointer;flex-shrink:0;margin-right:14px}
.hamburger i{display:block;height:2px;background:var(--main);border-radius:2px;transition:.2s}
.hamburger i:nth-child(1){width:60%} .hamburger i:nth-child(2){width:100%} .hamburger i:nth-child(3){width:60%;margin-left:auto;background:var(--primary)}
.header .brand{font-family:'Poppins',sans-serif;font-size:17px;font-weight:700;color:var(--main);display:flex;align-items:center;gap:10px;white-space:nowrap;flex-shrink:0;text-decoration:none;letter-spacing:-0.01em}
.brand-logo{width:32px;height:32px;border-radius:50%;object-fit:cover;flex-shrink:0;box-shadow:0 2px 8px rgba(0,0,0,.12);transition:transform .2s ease;display:block}
.header .brand:hover .brand-logo{transform:scale(1.05)}
.brand-text{display:inline-flex;align-items:center;line-height:1}
.brand-text b{color:var(--primary);font-weight:800}
.header .search{flex:none;width:380px;max-width:38vw;margin:0;position:relative}
.header .search input{width:100%;background:rgba(236,239,241,.85);border:0;outline:0;padding:11px 14px 11px 44px;border-radius:8px;font-size:13px;transition:.2s}
.header .search input:focus{box-shadow:0 2px 8px rgba(0,0,0,.08)}
.header .search button{position:absolute;left:18px;top:50%;transform:translateY(-50%);background:transparent;border:0;cursor:pointer;color:#5f6368;font-size:16px}
.header .head-right{margin-left:auto;display:flex;align-items:center;gap:12px;flex-shrink:0}
.btn{padding:8px 16px;border-radius:6px;border:0;cursor:pointer;font-size:13px;font-weight:600;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff} .btn-primary:hover{background:var(--primary-hover)}
.btn-ghost{background:#fff;border:1px solid var(--border);color:var(--main)}
.badge{font-size:11px;background:var(--primary);color:#fff;padding:3px 8px;border-radius:20px}
.search-icon-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;border:0;border-radius:8px;cursor:pointer;font-size:16px;flex-shrink:0}
.search-icon-btn:hover{background:var(--primary-hover)}
.search-toggle-btn{display:none;background:transparent;border:0;font-size:22px;cursor:pointer;color:var(--main);line-height:1}
.nav-toggle{display:none}
.nav-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.25);z-index:44;opacity:0;visibility:hidden;transition:.2s}
/* Sidebar nav desktop */
.nav{position:fixed;top:0;left:0;width:var(--nav-w);height:100%;background:var(--nav);border-right:1px solid var(--border);padding:calc(var(--header-h) + 15px) 0 90px;overflow:hidden;z-index:45;transition:.2s;box-shadow:0 6px 18px rgba(30,30,30,.04)}
.nav:hover{overflow-y:auto}
.nav h4{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding:0 20px;margin:14px 0 8px}
.nav a{display:flex;align-items:center;gap:12px;padding:10px 20px 10px 25px;color:var(--main);font-size:13.5px;font-weight:600;position:relative}
.nav a:hover,.nav a.active{background:rgba(0,90,240,.06);color:var(--primary)}
.nav a:hover::before,.nav a.active::before{content:"";position:absolute;left:0;top:0;width:2px;height:42px;background:var(--primary);border-radius:0 3px 3px 0}
.nav .sep{height:1px;background:var(--border);margin:14px 20px}
.nav .nav-foot{position:absolute;bottom:0;left:0;width:100%;padding:14px 20px;font-size:11px;color:var(--muted);line-height:1.5;border-top:1px solid var(--border);background:var(--nav)}
.nav-mobile{display:none}

/* Nav grouped dropdown */
.nav-group{border-bottom:1px solid transparent}
.nav-group summary{list-style:none;display:flex;align-items:center;justify-content:space-between;padding:10px 20px 10px 25px;cursor:pointer;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:700;font-family:'Poppins',sans-serif;user-select:none}
.nav-group summary::-webkit-details-marker{display:none}
.nav-group summary::after{content:'›';font-size:14px;transition:.2s;opacity:.55;flex-shrink:0;margin-left:8px}
.nav-group[open] summary::after{transform:rotate(90deg);opacity:.9}
.nav-group summary .nav-count{margin-left:auto;margin-right:8px;background:rgba(0,90,240,.08);color:var(--primary);font-size:10px;padding:2px 6px;border-radius:999px;letter-spacing:0;text-transform:none;font-family:'Nunito Sans',sans-serif}
html[data-theme="dark"] .nav-group summary .nav-count{background:rgba(0,90,240,.18)}
.nav-group-items{padding:2px 0 6px}
.nav-group-items a{padding-left:36px !important;font-size:13px !important}
.nav-group-items a.active{background:rgba(0,90,240,.06);color:var(--primary)}

/* Main */
.main{padding:calc(var(--header-h) + 24px) 24px 40px calc(var(--nav-w) + 24px);transition:.2s}
.container{max-width:1280px;margin:0 auto}
.layout{display:flex;gap:24px;align-items:flex-start}
.content{flex:1;min-width:0}
.sidebar{width:var(--side-w);flex-shrink:0;position:sticky;top:calc(var(--header-h) + 16px)}
.hero{background:linear-gradient(135deg,#005af0 0%,#00dcc0 100%);color:#fff;border-radius:16px;padding:28px;margin-bottom:24px;position:relative;overflow:hidden}
.hero h1{color:#fff;font-size:26px;margin-bottom:8px}
.hero p{opacity:.92;margin:0 0 14px;line-height:1.5}
.hero .btn{background:#fff;color:var(--primary)} .hero .btn:hover{background:#f0f2f5}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--card);border-radius:12px;overflow:hidden;box-shadow:0 8px 24px rgba(30,30,30,.06);display:flex;flex-direction:column;transition:.2s}
.card:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(30,30,30,.09)}
.card .thumb{aspect-ratio:16/9;background:#f0f2f5;position:relative;overflow:hidden}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.card .thumb .cat{position:absolute;top:10px;left:10px;background:rgba(0,0,0,.65);color:#fff;font-size:11px;padding:4px 8px;border-radius:20px;backdrop-filter:blur(4px)}
.card .body{padding:14px 16px 16px;flex:1;display:flex;flex-direction:column}
.card .title{font-size:15px;font-weight:700;color:var(--main);line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:40px}
.card .title a{color:inherit} .card .title a:hover{color:var(--primary)}
.card .excerpt{font-size:12.5px;color:var(--muted);margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.5}
.card .meta{margin-top:12px;display:flex;align-items:center;justify-content:space-between;font-size:11.5px;color:var(--muted)}
.card .meta .author{font-weight:600;color:var(--text)}
.dot{width:3px;height:3px;background:var(--muted);border-radius:50%;display:inline-block;margin:0 6px;vertical-align:middle}
.widget{background:var(--card);border-radius:12px;padding:18px;box-shadow:0 8px 24px rgba(30,30,30,.05);margin-bottom:18px}
.widget h3{font-size:14px;margin-bottom:14px}
.widget ul{list-style:none;margin:0;padding:0}
.widget li{padding:10px 0;border-bottom:1px solid var(--border);font-size:13px}
.widget li:last-child{border:0}
.widget li a{color:var(--main);font-weight:600} .widget li a:hover{color:var(--primary)}
.widget .count{font-size:11px;color:var(--muted);margin-left:6px}
.pop-item{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--border)}
.pop-item:last-child{border:0}
.pop-item .n{width:28px;height:28px;border-radius:8px;background:rgba(0,90,240,.1);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:12px;flex-shrink:0}
.pop-item a{font-size:13px;font-weight:600;color:var(--main);line-height:1.35}
.post{background:var(--card);border-radius:12px;box-shadow:0 8px 24px rgba(30,30,30,.05);overflow:hidden}
.post .post-head{padding:24px 28px 0}
.breadcrumb{font-size:11px;color:var(--muted);display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px}
.breadcrumb a{color:var(--muted)} .breadcrumb a:hover{color:var(--primary)}
.post .post-title{font-size:26px;line-height:1.25}
.post .post-meta{display:flex;align-items:center;gap:12px;margin-top:14px;padding-bottom:18px;border-bottom:1px solid var(--border);font-size:12.5px;color:var(--muted);flex-wrap:wrap}
.post .post-meta .avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#005af0,#00dcc0);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700}
.post .post-body{padding:22px 28px 28px;font-size:16px;line-height:1.75;color:#2a3441}
.post .post-hero{margin:0 0 26px;overflow:hidden;border-radius:14px;background:var(--border);aspect-ratio:16/9}
.post .post-hero img{display:block;width:100%;height:100%;margin:0;border-radius:0;object-fit:cover}
.post .post-body p{margin:1.2em 0}
.post .post-body h2{margin:1.6em 0 .6em;font-size:22px} .post .post-body h3{margin:1.4em 0 .5em;font-size:18px}
.post .post-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.post .post-body blockquote{margin:20px 0;padding:16px 18px 16px 54px;background:#f7f9ff;border:1px solid #e3e8ff;border-radius:10px;position:relative;color:var(--main)}
.post .post-body blockquote::before{content:'\201D';position:absolute;left:16px;top:8px;font-size:42px;line-height:1;font-family:'Poppins',sans-serif;color:rgba(0,90,240,.2)}
.post .post-body pre{background:#1e2430;color:#e6e8eb;padding:16px;border-radius:10px;overflow:auto;font-size:13px;line-height:1.6}
.post .post-body code{font-family:'Fira Mono',monospace;font-size:13px;background:rgba(0,0,0,.06);padding:2px 5px;border-radius:4px}
.post .post-body pre code{background:transparent;padding:0;color:inherit}
.post .post-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14px}
.post .post-body th,.post .post-body td{border:1px solid var(--border);padding:10px 12px;text-align:left}
.post .post-body th{background:#f7f9f8}
.post .post-body ul,.post .post-body ol{padding-left:22px}
.post .post-body img{width:100%;height:auto;border-radius:12px;margin:18px auto;display:block;object-fit:cover}
.share{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 0}
.post .post-body .share a,.share a{padding:9px 14px;border-radius:8px;color:#fff !important;font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:8px;text-decoration:none !important;border:0}
.post .post-body .share a:hover,.share a:hover{color:#fff !important;opacity:.92;text-decoration:none !important;filter:brightness(.96)}
.post .post-body .share a:visited{color:#fff !important}
.share .fb{background:#1877f2 !important} .share .tw{background:#1da1f2 !important} .share .wa{background:#25d366 !important}
html[data-theme="dark"] .post .post-body .share a{color:#fff !important}
/* Btn di dalam post-body — jangan ketimpa warna link artikel */
.post .post-body a.btn{color:#fff !important;text-decoration:none !important}
.post .post-body a.btn-primary{color:#fff !important;background:var(--primary) !important;text-decoration:none !important}
.post .post-body a.btn-primary:hover{color:#fff !important;background:var(--primary-hover) !important;opacity:1}
.post .post-body a.btn-primary:visited{color:#fff !important}
.post .post-body a.btn-ghost{color:var(--main) !important;background:#fff !important;text-decoration:none !important;border:1px solid var(--border) !important}
html[data-theme="dark"] .post .post-body a.btn-primary{color:#fff !important}
html[data-theme="dark"] .post .post-body a.btn-ghost{color:var(--main) !important;background:var(--card) !important;border-color:var(--border) !important}
.pager{display:flex;gap:10px;justify-content:center;margin:26px 0;flex-wrap:wrap}
.pager a,.pager span{padding:8px 14px;border-radius:8px;background:var(--card);box-shadow:0 4px 12px rgba(0,0,0,.06);font-size:13px;font-weight:600}
.pager .active{background:var(--primary);color:#fff}
.pager .disabled{opacity:.5;pointer-events:none}
.footer{margin-top:36px;padding:18px 0 0;border-top:1px solid var(--border);font-size:12.5px;color:var(--muted);text-align:center}
.footer a{color:var(--main);font-weight:600}
.admin-wrap{max-width:1280px;margin:20px auto;padding:0 16px}
.admin-card{background:#fff;border-radius:12px;box-shadow:0 8px 24px rgba(0,0,0,.06);padding:20px}
.input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;outline:0;font-size:14px}
.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(0,90,240,.12)}
.label{font-size:12px;font-weight:700;color:var(--main);margin-bottom:6px;display:block}
.table{width:100%;border-collapse:collapse;font-size:13px}
.table th,.table td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:left}
.table th{font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}

/* Toggle theme switch */
.theme-toggle{width:52px;height:28px;background:#e4e8ed;border-radius:999px;position:relative;cursor:pointer;display:flex;align-items:center;padding:2px;transition:.3s;border:1px solid var(--border);flex-shrink:0;overflow:hidden}
.theme-toggle .knob{width:22px;height:22px;background:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;line-height:1;transition:transform .32s cubic-bezier(.4,0,.2,1),background .3s;transform:translateX(0);box-shadow:0 1px 4px rgba(0,0,0,.2)}
html[data-theme="dark"] .theme-toggle{background:#2f3542;border-color:#2f3542}
html[data-theme="dark"] .theme-toggle .knob{transform:translateX(24px);background:#fff}
html[data-theme="light"] .theme-toggle{background:#e4e8ed;border-color:#e4e8ed}
html[data-theme="light"] .theme-toggle .knob{transform:translateX(0);background:#fff}

/* Dark theme vars */
html[data-theme="dark"]{--bg:#0f1115;--card:#1c1f26;--nav:#181b22;--header:#181b22;--main:#e8e8ec;--text:#a3adbb;--muted:#7b8596;--border:#262b36}
html[data-theme="dark"] body{background:var(--bg);color:var(--text)}
html[data-theme="dark"] .header{box-shadow:0 2px 12px rgba(0,0,0,.35)}
html[data-theme="dark"] .header .search input{background:#252a33;color:#d8dde6}
html[data-theme="dark"] .header .search input::placeholder{color:#7b8596}
html[data-theme="dark"] .header .search input:focus{box-shadow:0 2px 8px rgba(0,0,0,.25)}
html[data-theme="dark"] .card .thumb{background:#252a33}
html[data-theme="dark"] .hero{opacity:.98}
html[data-theme="dark"] .post .post-body{color:#c7d0de}
html[data-theme="dark"] .post .post-body p{color:#c7d0de}
html[data-theme="dark"] .post .post-body h2,html[data-theme="dark"] .post .post-body h3{color:var(--main)}
html[data-theme="dark"] .post .post-body blockquote{background:#232834;border-color:#2a3040;color:var(--main)}
html[data-theme="dark"] .post .post-body blockquote::before{color:rgba(0,90,240,.35)}
html[data-theme="dark"] .post .post-body pre{background:#0b0e14;color:#e6e8eb}
html[data-theme="dark"] .post .post-body code{background:rgba(255,255,255,.08);color:#d8dde6}
html[data-theme="dark"] .post .post-body pre code{background:transparent}
html[data-theme="dark"] .post .post-body th{background:#232834}
html[data-theme="dark"] .post .post-body td,html[data-theme="dark"] .post .post-body th{border-color:#2a3040}
html[data-theme="dark"] .post .post-body a{color:#5b8def}
html[data-theme="dark"] .widget{box-shadow:0 8px 24px rgba(0,0,0,.25)}
html[data-theme="dark"] .admin-card{background:var(--card)}
html[data-theme="dark"] .input{background:#252a33;color:var(--main);border-color:var(--border)}
html[data-theme="dark"] .input::placeholder{color:var(--muted)}
html[data-theme="dark"] .btn-ghost{background:var(--card);border-color:var(--border);color:var(--main)}
html[data-theme="dark"] .pager a,html[data-theme="dark"] .pager span{background:var(--card)}
html[data-theme="dark"] .hamburger i{background:var(--main)}
html[data-theme="dark"] .nav-mobile{background:var(--card);box-shadow:0 -10px 20px rgba(0,0,0,.35)}
html[data-theme="dark"] ::-webkit-scrollbar-thumb{background:rgba(255,255,255,.15)}
html[data-theme="dark"] ::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.28)}

/* ========== RESPONSIVE SYSTEM (MOBILE-FIRST ADAPTIVE) ========== */

/* Laptop & Large Tablet (max 1024px) */
@media screen and (max-width: 1024px) {
  :root { --nav-w: 200px; --side-w: 280px; }
  .grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .main { padding-left: calc(var(--nav-w) + 20px); padding-right: 20px; }
}

/* Tablet & Mobile Breakpoint (max 900px) */
@media screen and (max-width: 900px) {
  :root { --header-h: 56px; }
  .header { padding: 0 16px; gap: 12px; }
  .header .search { display: none; }
  .header .search-toggle-btn { display: block; }
  .hamburger { display: flex; }
  
  /* Collapse sidebar nav into off-canvas drawer */
  .nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 82%;
    max-width: 320px;
    height: 100%;
    margin-left: -100%;
    padding: calc(var(--header-h) + 12px) 0 90px;
    background: var(--nav);
    box-shadow: 0 8px 30px rgba(0,0,0,.25);
    border-radius: 0 20px 20px 0;
    border-right: 0;
    z-index: 48;
    transition: margin-left .28s cubic-bezier(.16,1,.3,1);
  }
  .nav-overlay { display: block; }
  .nav-toggle:checked ~ .nav { margin-left: 0; }
  .nav-toggle:checked ~ .nav-overlay { opacity: 1; visibility: visible; }

  /* Reset main padding: NO LARGE LEFT MARGIN ON MOBILE! */
  .main {
    padding: calc(var(--header-h) + 16px) 16px 84px 16px !important;
    transition: none;
  }
  .layout { flex-direction: column; gap: 20px; }
  .content { width: 100%; min-width: 0; }
  .sidebar { width: 100%; position: static; }
  .grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  
  /* Mobile Bottom Navigation Bar */
  .nav-mobile { display: flex; }
  .footer { padding-bottom: 84px; }

  .post .post-head { padding: 18px 18px 0; }
  .post .post-title { font-size: 21px; line-height: 1.3; }
  .post .post-body { padding: 16px 18px 24px; font-size: 15px; }
  .post .post-hero { margin-bottom: 18px; }
  .hero { padding: 22px 18px; border-radius: 14px; }
  .hero h1 { font-size: 21px; }
  .hero p { font-size: 13px; }
}

/* Smartphone Portrait (max 600px) */
@media screen and (max-width: 600px) {
  .header { padding: 0 12px; }
  .header .brand { font-size: 15.5px; gap: 8px; }
  .brand-logo { width: 28px; height: 28px; }
  .main { padding: calc(var(--header-h) + 12px) 12px 84px 12px !important; }
  .grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .card { border-radius: 10px; }
  .card .body { padding: 8px 10px 12px; }
  .card .title { font-size: 12.5px; line-height: 1.35; min-height: 34px; }
  .card .excerpt { font-size: 11px; margin-top: 5px; line-height: 1.4; }
  .card .meta { font-size: 10px; margin-top: 8px; }
  .card .thumb .cat { font-size: 9.5px; padding: 2px 6px; top: 6px; left: 6px; }
  
  .hero { padding: 16px 14px; margin-bottom: 14px; border-radius: 12px; }
  .hero h1 { font-size: 17.5px; line-height: 1.25; }
  .hero p { font-size: 12px; margin-bottom: 12px; }
  .btn-hero-start { padding: 8px 16px; font-size: 13px; }
  
  .post .post-head { padding: 14px 14px 0; }
  .post .post-title { font-size: 18px; line-height: 1.3; }
  .post .post-meta { font-size: 11px; gap: 6px; padding-bottom: 12px; }
  .post .post-meta .avatar { width: 30px; height: 30px; font-size: 12px; }
  .post .post-body { padding: 14px 14px 20px; font-size: 14px; line-height: 1.65; }
  .post .post-body h2 { font-size: 17px; margin: 1.4em 0 .4em; }
  .post .post-body h3 { font-size: 15px; margin: 1.2em 0 .4em; }
  .post .post-body blockquote { padding: 12px 14px 12px 38px; font-size: 13px; }
  .post .post-body blockquote::before { left: 10px; font-size: 32px; }
  
  .post-toc { margin: 14px 0 18px; border-radius: 10px; }
  .post-toc-header { padding: 10px 14px; font-size: 12.5px; }
  .post-toc-body { padding: 10px 14px 14px; }
  .post-toc-list { font-size: 12px; }
  
  .code-block-wrap { margin: 14px 0; border-radius: 8px; }
  .code-block-header { padding: 6px 10px; font-size: 10px; }
  .code-copy-btn { padding: 2px 7px; font-size: 10px; }
  .code-block-wrap pre { padding: 10px 12px !important; font-size: 12px; }
  
  .widget { padding: 14px; margin-bottom: 14px; border-radius: 10px; }
  .widget h3 { font-size: 13px; margin-bottom: 10px; }
  .widget li { padding: 8px 0; font-size: 12px; }
  
  .pager a, .pager span { padding: 5px 9px; font-size: 11.5px; }
  .share { gap: 6px; }
  .share a { padding: 6px 12px; font-size: 11px; }
}

/* Extra Small Screens (max 360px) */
@media screen and (max-width: 360px) {
  .grid { grid-template-columns: 1fr; gap: 12px; }
  .card .title { min-height: auto; }
}

/* AdSense Ad Slots */
.ad-slot-wrap{margin:18px 0;text-align:center;background:var(--card);border:1px dashed var(--border);border-radius:10px;padding:10px;position:relative;overflow:hidden;min-height:90px;display:flex;flex-direction:column;align-items:center;justify-content:center}
.ad-label{font-size:9px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:6px;opacity:.7;font-weight:700}
.ad-slot-body{width:100%;display:flex;justify-content:center;align-items:center;overflow:hidden}
.ad-slot-post-top{margin-bottom:20px}
.ad-slot-in-article{margin:24px 0}
.ad-slot-post-bottom{margin-top:24px}
.ad-slot-sidebar{margin-bottom:18px}
.ad-slot-home-feed{margin:20px 0}
.my-3{margin-top:14px;margin-bottom:14px}
.my-4{margin-top:20px;margin-bottom:20px}
.mb-4{margin-bottom:20px}

/* Interactive Learning Modal (Desktop & Mobile Bottom Sheet) */
.btn-hero-start{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:14px;padding:10px 22px;border-radius:10px;cursor:pointer;border:0;background:#fff;color:var(--primary);box-shadow:0 4px 14px rgba(0,0,0,.15);transition:transform .2s,box-shadow .2s}
.btn-hero-start:hover{transform:translateY(-2px);background:#f8fafc;box-shadow:0 6px 20px rgba(0,0,0,.2)}

.learn-modal-overlay{position:fixed;inset:0;background:rgba(10,12,18,.7);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:999;display:flex;align-items:center;justify-content:center;padding:16px;animation:fadeInModal .2s ease forwards}
@keyframes fadeInModal{from{opacity:0}to{opacity:1}}

.learn-modal-handle{display:none;width:38px;height:4px;background:var(--border);border-radius:4px;margin:10px auto 2px;flex-shrink:0}

.learn-modal-dialog{width:100%;max-width:760px;max-height:90vh;background:var(--card);border:1px solid var(--border);border-radius:20px;box-shadow:0 24px 60px rgba(0,0,0,.35);display:flex;flex-direction:column;overflow:hidden;animation:scaleUpModal .25s cubic-bezier(.16,1,.3,1) forwards}
@keyframes scaleUpModal{from{opacity:0;transform:scale(.95) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}

.learn-modal-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:18px 22px 14px;border-bottom:1px solid var(--border)}
.learn-modal-title{font-size:18px;font-weight:700;color:var(--main);margin:0}
.learn-modal-subtitle{font-size:12px;color:var(--muted);margin:3px 0 0}
.learn-modal-close{width:32px;height:32px;border-radius:8px;background:rgba(0,0,0,.06);border:0;color:var(--muted);font-size:15px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.15s;flex-shrink:0}
html[data-theme="dark"] .learn-modal-close{background:rgba(255,255,255,.08);color:var(--main)}
.learn-modal-close:hover{background:rgba(239,68,68,.15);color:#ef4444}

.learn-modal-search{display:flex;align-items:center;gap:8px;margin:14px 22px 8px;padding:7px 12px;background:var(--bg);border:1px solid var(--border);border-radius:10px}
.learn-modal-search input{flex:1;border:0;outline:0;background:transparent;font-size:13px;color:var(--main)}

.learn-tracks-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;padding:10px 22px 14px;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
.learn-track-card{background:var(--bg);border:1px solid var(--border);border-radius:12px;padding:12px 14px;display:flex;gap:12px;align-items:center;cursor:pointer;transition:transform .2s,border-color .2s,box-shadow .2s;text-decoration:none}
.learn-track-card:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:0 4px 14px rgba(0,90,240,.12)}
.learn-track-card:active{transform:scale(.98)}
.track-icon{width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.track-info{flex:1;min-width:0}
.track-info h4{font-size:13.5px;font-weight:700;color:var(--main);margin:0 0 2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.track-info p{font-size:11.5px;color:var(--muted);margin:0;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.track-arrow{font-size:18px;color:var(--muted);opacity:.4;flex-shrink:0;transition:.15s}
.learn-track-card:hover .track-arrow{opacity:1;color:var(--primary);transform:translateX(2px)}

.learn-modal-footer{padding:12px 22px 18px;border-top:1px solid var(--border);background:var(--card);display:flex;flex-direction:column;gap:6px}
.quick-title{font-size:10.5px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}
.quick-chips{display:flex;gap:5px;flex-wrap:wrap}
.quick-chips a{font-size:11px;background:var(--bg);border:1px solid var(--border);color:var(--main);padding:3px 9px;border-radius:6px;font-weight:600;transition:.15s}
.quick-chips a:hover{border-color:var(--primary);color:var(--primary);background:rgba(0,90,240,.06)}

/* MOBILE BOTTOM SHEET (iPhone / Android App Style) */
@media(max-width:640px){
  .learn-modal-overlay{align-items:flex-end;padding:0}
  .learn-modal-handle{display:block}
  .learn-modal-dialog{max-width:100%;max-height:86vh;border-radius:24px 24px 0 0;border-bottom:0;border-left:0;border-right:0;animation:slideUpSheet .28s cubic-bezier(.16,1,.3,1) forwards}
  @keyframes slideUpSheet{from{transform:translateY(100%)}to{transform:translateY(0)}}
  .learn-modal-header{padding:10px 18px 12px}
  .learn-modal-title{font-size:16px}
  .learn-modal-subtitle{font-size:11.5px}
  .learn-modal-search{margin:10px 18px 6px;padding:6px 10px}
  .learn-tracks-grid{grid-template-columns:1fr;gap:8px;padding:8px 18px 12px}
  .learn-track-card{padding:10px 12px;border-radius:10px}
  .track-icon{width:34px;height:34px;font-size:16px}
  .track-info h4{font-size:13px}
  .track-info p{font-size:11px}
  .learn-modal-footer{padding:10px 18px 24px}
  .quick-chips a{padding:2px 7px;font-size:10.5px}
}

/* Reading Progress Bar */
.reading-progress-bar{position:fixed;top:var(--header-h,60px);left:0;height:3px;background:linear-gradient(90deg,#005af0,#00dcc0);width:0;z-index:99;transition:width .1s ease-out;pointer-events:none}

/* Table of Contents (TOC) */
.post-toc{background:var(--card);border:1px solid var(--border);border-left:4px solid var(--primary);border-radius:12px;margin:20px 0 24px;overflow:hidden;box-shadow:0 4px 14px rgba(0,0,0,.03)}
.post-toc-header{display:flex;align-items:center;justify-content:space-between;padding:12px 18px;background:rgba(0,90,240,.04);cursor:pointer;user-select:none;transition:background .15s}
.post-toc-header:hover{background:rgba(0,90,240,.08)}
.post-toc-title{font-weight:700;font-size:13.5px;color:var(--main);display:flex;align-items:center;gap:6px}
.post-toc-toggle{font-size:11.5px;color:var(--primary);font-weight:600}
.post-toc-body{padding:14px 18px 16px}
.post-toc-list{margin:0;padding-left:20px;font-size:13px;line-height:1.6;color:var(--main)}
.post-toc-list li{margin-bottom:6px}
.post-toc-list a{color:var(--text);text-decoration:none;transition:color .15s}
.post-toc-list a:hover{color:var(--primary);text-decoration:underline}
.toc-main-item{font-weight:600}
.toc-sub-item{margin-left:14px;font-size:12.5px;list-style-type:circle;font-weight:400}
.post-heading-anchor{scroll-margin-top:calc(var(--header-h,60px) + 20px)}

/* Code Block & Copy Button */
.code-block-wrap{position:relative;margin:20px 0;background:#1e1e24;border-radius:12px;overflow:hidden;border:1px solid rgba(255,255,255,.08);box-shadow:0 6px 18px rgba(0,0,0,.25)}
.code-block-header{display:flex;align-items:center;justify-content:space-between;padding:8px 14px;background:#16161a;border-bottom:1px solid rgba(255,255,255,.06);font-family:'Fira Mono',monospace}
.code-lang{font-size:10px;font-weight:700;letter-spacing:.08em;color:#94a3b8;text-transform:uppercase}
.code-copy-btn{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);color:#e2e8f0;font-size:11px;font-weight:600;padding:3px 9px;border-radius:6px;cursor:pointer;transition:all .15s;display:inline-flex;align-items:center;gap:4px}
.code-copy-btn:hover{background:rgba(255,255,255,.18);color:#fff;border-color:rgba(255,255,255,.25)}
.code-copy-btn.copied{background:#16a34a;border-color:#16a34a;color:#fff}
.code-block-wrap pre{margin:0 !important;padding:14px 16px !important;background:transparent !important;overflow-x:auto;border:0 !important;font-size:13px;line-height:1.55;font-family:'Fira Mono',monospace;color:#f8fafc}

/* AI Audio Reader Card */
.post-audio-card{background:linear-gradient(135deg,rgba(0,90,240,.04) 0%,rgba(0,220,192,.04) 100%);border:1px solid rgba(0,90,240,.18);border-radius:14px;padding:14px 18px;margin:18px 0 22px;display:flex;align-items:center;justify-content:space-between;gap:14px;box-shadow:0 4px 16px rgba(0,90,240,.04);transition:.2s}
.post-audio-card:hover{box-shadow:0 6px 20px rgba(0,90,240,.08);border-color:var(--primary)}
.audio-info{display:flex;align-items:center;gap:12px;min-width:0;flex:1}
.audio-icon-wrap{width:40px;height:40px;border-radius:10px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;box-shadow:0 4px 12px rgba(0,90,240,.3)}
.audio-text{min-width:0}
.audio-title{font-weight:700;font-size:13.5px;color:var(--main);line-height:1.2;margin-bottom:2px;display:flex;align-items:center;gap:6px}
.audio-subtitle{font-size:11.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.audio-controls{display:flex;align-items:center;gap:8px;flex-shrink:0}
.audio-play-btn{display:inline-flex;align-items:center;gap:6px;background:var(--primary);color:#fff;border:0;border-radius:8px;padding:8px 14px;font-size:12.5px;font-weight:700;cursor:pointer;transition:all .2s;box-shadow:0 2px 8px rgba(0,90,240,.25)}
.audio-play-btn:hover{background:var(--primary-hover);transform:scale(1.02)}
.audio-play-btn.playing{background:#ef4444;box-shadow:0 2px 8px rgba(239,68,68,.3)}
.audio-speed-btn{background:var(--card);border:1px solid var(--border);color:var(--main);border-radius:8px;padding:7px 10px;font-size:11.5px;font-weight:700;cursor:pointer;transition:.15s}
.audio-speed-btn:hover{border-color:var(--primary);color:var(--primary)}
.audio-waveform{display:none;align-items:center;gap:2px;height:14px;margin-left:4px}
.audio-waveform.active{display:inline-flex}
.audio-waveform span{width:3px;background:var(--primary);border-radius:2px;animation:waveBar .8s infinite ease-in-out alternate}
.audio-waveform span:nth-child(2){animation-delay:.2s}
.audio-waveform span:nth-child(3){animation-delay:.4s}
.audio-waveform span:nth-child(4){animation-delay:.1s}
@keyframes waveBar{0%{height:4px}100%{height:14px}}
@media(max-width:580px){
  .post-audio-card{flex-direction:column;align-items:stretch;gap:12px;padding:12px 14px}
  .audio-controls{justify-content:flex-end;width:100%}
}

/* TL;DR / Key Takeaways Card */
.post-tldr-card{background:var(--card);border:1px solid var(--border);border-left:4px solid #10b981;border-radius:14px;padding:16px 20px;margin:20px 0 24px;box-shadow:0 4px 16px rgba(0,0,0,.03)}
.post-tldr-head{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.post-tldr-badge{font-size:10.5px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;background:rgba(16,185,129,.12);color:#059669;padding:3px 8px;border-radius:6px}
.post-tldr-title{font-size:13.5px;font-weight:700;color:var(--main);margin:0}
.post-tldr-list{margin:0;padding-left:18px;font-size:13px;line-height:1.65;color:var(--text)}
.post-tldr-list li{margin-bottom:6px}
.post-tldr-list li:last-child{margin-bottom:0}
.post-tldr-list strong{color:var(--main)}