/* ─── Less-IT · Global Styles ─── */

/* Reset */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
section[id],div[id]{scroll-margin-top:calc(var(--nav-h) + 1rem)}
body{font-family:var(--sans);font-size:17px;line-height:1.75;color:var(--t2);background:var(--bg);min-height:100vh;overflow-x:hidden}
img,svg{display:block;max-width:100%}
a{color:var(--blue);text-decoration:none;transition:color .15s}
a:hover{color:var(--cyan)}
button{font:inherit;cursor:pointer;border:none;background:none}
ul,ol{list-style:none}
.content-section ul{list-style:disc}
.content-section ol{list-style:decimal}
code{font-family:var(--mono);font-size:.85em;color:var(--cyan);background:var(--code-bg);padding:.15em .4em;border-radius:4px;border:1px solid var(--code-border)}
pre code{font-size:inherit;color:var(--code-text);background:none;padding:0;border:none;border-radius:0}

/* Container */
.wrap{max-width:var(--mw);margin:0 auto;padding:0 1.5rem}
.wrap--sm{max-width:var(--mw-sm);margin:0 auto;padding:0 1.5rem}

/* ── Typography ── */
h1,h2,h3,h4,h5,h6{color:var(--t1);line-height:1.3;font-weight:700}
h1{font-size:clamp(2.2rem,5vw,3.2rem);letter-spacing:-.03em;font-weight:800}
h2{font-size:clamp(1.55rem,3.2vw,2.1rem);letter-spacing:-.02em}
h3{font-size:1.35rem}
h4{font-size:1.15rem}
.grad-text{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.section-label{display:inline-flex;align-items:center;gap:.4rem;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--blue);margin-bottom:.75rem}
.section-label::before{content:'';width:16px;height:2px;background:var(--blue);border-radius:1px}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.65rem 1.4rem;border-radius:var(--r2);font-size:.95rem;font-weight:600;transition:all .2s var(--ease);border:1px solid transparent;cursor:pointer}
.btn--primary{background:var(--blue);color:#fff;box-shadow:var(--shadow-sm)}
.btn--primary:hover{background:#1d4ed8;box-shadow:var(--shadow-md)}
.btn--ghost{border-color:var(--border);color:var(--t2);background:var(--bg)}
.btn--ghost:hover{border-color:var(--border-2);color:var(--t1);background:var(--bg-1)}
.btn--lg{padding:.8rem 1.7rem;font-size:1.02rem;border-radius:var(--r3)}
.btn--glow{display:inline-flex;align-items:center;gap:.6rem;
  padding:.85rem 2rem;border-radius:var(--r3);font-size:1.05rem;font-weight:700;
  color:#fff;background:var(--grad);border:none;
  box-shadow:0 4px 20px rgba(82,72,184,.3),0 0 0 0 rgba(82,72,184,0);
  transition:all .25s var(--ease);position:relative;overflow:hidden}
.btn--glow::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.2),transparent 60%);pointer-events:none}
.btn--glow:hover{transform:translateY(-2px);color:#fff;box-shadow:0 8px 30px rgba(82,72,184,.4),0 0 0 3px rgba(82,72,184,.12)}
.btn--glow:active{transform:translateY(0)}
.btn--glow svg{transition:transform .2s var(--ease)}
.btn--glow:hover svg{transform:translateX(3px)}

/* ── Cards ── */
.card{position:relative;background:var(--bg-1);border:1px solid var(--border);border-radius:var(--r3);padding:1.5rem;transition:border-color .2s,box-shadow .2s,transform .2s var(--ease);box-shadow:var(--shadow-md)}
.card:hover{border-color:var(--border-2);box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.card--flush{padding:0;overflow:hidden}

/* ── Badge ── */
.badge{display:inline-flex;align-items:center;gap:.35rem;font-size:.8rem;font-weight:600;padding:.3rem .75rem;border-radius:var(--r5);letter-spacing:.02em}
.badge--blue{background:var(--blue-a);color:var(--blue)}
.badge--purple{background:var(--purple-a);color:var(--purple)}
.badge--green{background:var(--green-a);color:var(--green)}
.badge--orange{background:var(--orange-a);color:var(--orange)}
.badge--red{background:var(--red-a);color:var(--red)}
.badge--cyan{background:var(--cyan-a);color:var(--cyan)}
.badge--teal{background:var(--teal-a);color:var(--teal)}
.badge--pink{background:var(--pink-a);color:var(--pink)}

/* ── Grid ── */
.grid{display:grid;gap:1.25rem}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-5{grid-template-columns:repeat(5,1fr)}
@media(max-width:900px){.grid-3,.grid-4,.grid-5{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid-2,.grid-3,.grid-4,.grid-5{grid-template-columns:1fr}}
.mission-grid{}
@media(max-width:768px){.mission-grid{grid-template-columns:1fr!important}}

/* ── Tables ── */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--r3);box-shadow:var(--shadow-md);scrollbar-width:none;-ms-overflow-style:none}
.table-wrap::-webkit-scrollbar{display:none}
table{width:100%;border-collapse:collapse;font-size:.95rem}
thead{background:var(--bg-1)}
th{text-align:left;padding:.7rem 1rem;color:var(--t1);font-weight:600;border-bottom:2px solid var(--border)}
td{padding:.7rem 1rem;border-bottom:1px solid var(--border);color:var(--t2)}
tr:last-child td{border-bottom:none}
tbody tr:hover{background:var(--bg-1)}

/* ── Accordion ── */
.accordion{border:1px solid var(--border);border-radius:var(--r3);overflow:hidden;box-shadow:var(--shadow-md)}
.accordion__item{border-bottom:1px solid var(--border)}
.accordion__item:last-child{border-bottom:none}
.accordion__trigger{width:100%;display:flex;align-items:center;justify-content:space-between;padding:1rem 1.25rem;font-size:1rem;font-weight:600;color:var(--t1);text-align:left;transition:background .15s;cursor:pointer}
.accordion__trigger:hover{background:var(--bg-1)}
.accordion__trigger svg{width:18px;height:18px;color:var(--t3);transition:transform .2s;flex-shrink:0}
.accordion__item.open .accordion__trigger svg{transform:rotate(180deg)}
.accordion__content{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.accordion__item.open .accordion__content{max-height:500px;padding:0 1.25rem 1.25rem}

/* ── Tabs ── */
.tabs__header{display:flex;gap:0;border-bottom:2px solid var(--border);margin-bottom:1.5rem;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.tabs__header::-webkit-scrollbar{display:none}
.tabs__tab{padding:.65rem 1.2rem;font-size:.92rem;font-weight:500;color:var(--t3);border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .15s;white-space:nowrap;flex-shrink:0;cursor:pointer;background:none;border-top:none;border-left:none;border-right:none}
.tabs__tab:hover{color:var(--t1)}
.tabs__tab.active{color:var(--blue);border-bottom-color:var(--blue)}
.tabs__panel{display:none}
.tabs__panel.active{display:block}

/* ── Code Blocks ── */
.code-block{position:relative;background:var(--code-bg);border:1px solid var(--code-border);border-radius:var(--r3);overflow:hidden;box-shadow:var(--shadow)}
.code-block__header{display:flex;align-items:center;justify-content:space-between;padding:.5rem 1rem;border-bottom:1px solid var(--code-border);font-size:.8rem;color:var(--code-muted);font-weight:600;text-transform:uppercase;letter-spacing:.06em;background:var(--code-header)}
.code-block pre{margin:0;padding:1rem 1.25rem;overflow-x:auto;font-size:.92rem;line-height:1.7;color:var(--code-text);scrollbar-width:thin;scrollbar-color:var(--border) transparent}
.code-block pre::-webkit-scrollbar{height:6px}
.code-block pre::-webkit-scrollbar-track{background:transparent}
.code-block pre::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
.code-block pre code{font-family:var(--mono)}

/* Unified code block styling - ensures all <pre> in content sections match */
.content-section pre{background:var(--code-bg) !important;border:1px solid var(--code-border) !important;border-radius:var(--r3);overflow-x:auto;margin:0;padding:1rem 1.25rem;font-size:.92rem;line-height:1.7;color:var(--code-text);scrollbar-width:thin;scrollbar-color:var(--border) transparent;box-shadow:var(--shadow)}
.content-section pre::-webkit-scrollbar{height:6px}
.content-section pre::-webkit-scrollbar-track{background:transparent}
.content-section pre::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
.content-section pre code{font-family:var(--mono);color:var(--code-text);font-size:inherit}
.code-comment{color:var(--code-comment);font-style:italic}

/* ── Architecture Diagrams ── */
.arch-diagram{background:var(--bg-1);border:2px solid color-mix(in srgb,var(--blue) 20%,var(--border));border-radius:12px;padding:2rem;box-shadow:0 4px 24px rgba(0,0,0,.15);overflow-x:auto;margin-top:1rem}
.arch-diagram__legend{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:var(--blue);padding:0 .4rem;margin-left:.75rem;line-height:1}
.arch-diagram__row{display:flex;justify-content:center;gap:0;flex-wrap:wrap;align-items:center}
.arch-diagram__arrow-down{display:flex;flex-direction:column;align-items:center;padding:.4rem 0}
.arch-diagram__arrow-down .line{width:2px;height:28px;background:linear-gradient(180deg,var(--green),var(--cyan));border-radius:1px}
.arch-diagram__arrow-down .tip{display:block}
.arch-diagram__connector{width:3rem;height:2px;flex-shrink:0;margin:0 .25rem;border-radius:1px}
.arch-diagram__box{border:2px solid;border-radius:10px;padding:.85rem 1.25rem;text-align:center;min-width:0;flex:1 1 140px;max-width:220px;box-shadow:0 0 20px color-mix(in srgb,var(--arch-color,var(--blue)) 8%,transparent);background:color-mix(in srgb,var(--arch-color,var(--blue)) 10%,var(--bg-1))}
.arch-diagram__box-title{font-weight:700;font-size:.9rem;letter-spacing:.01em}
.arch-diagram__box-sub{font-size:.75rem;color:var(--t3);margin-top:.25rem}
.arch-diagram__box-mono{font-size:.72rem;color:var(--t3);margin-top:.25rem;font-family:'Cascadia Code',Consolas,monospace}
@media(max-width:700px){
  .arch-diagram{padding:1.25rem 1rem}
  .arch-diagram__row{flex-direction:column;gap:.5rem}
  .arch-diagram__connector{width:2px;height:1.5rem;margin:.25rem 0}
  .arch-diagram__box{max-width:100%;flex:1 1 100%;padding:.75rem 1rem}
  .arch-diagram__box-title{font-size:.85rem}
}

/* ── Vertical Flow Diagram ── */
.arch-flow{display:flex;flex-direction:column;align-items:center;gap:0;max-width:400px;margin:0 auto}
.arch-flow__box{border:2px solid var(--ac,var(--blue));border-radius:var(--r3);padding:1rem 1.5rem;text-align:center;width:100%;background:color-mix(in srgb,var(--ac,var(--blue)) 8%,var(--bg-1));box-shadow:0 0 16px color-mix(in srgb,var(--ac,var(--blue)) 6%,transparent)}
.arch-flow__title{font-weight:700;font-size:.95rem}
.arch-flow__sub{font-size:.78rem;color:var(--t3);margin-top:.25rem}
.arch-flow__arrow{font-size:1.2rem;color:var(--t3);line-height:1;padding:.25rem 0}
@media(max-width:480px){
  .arch-flow{max-width:100%}
  .arch-flow__box{padding:.75rem 1rem}
  .arch-flow__title{font-size:.85rem}
  .arch-flow__sub{font-size:.72rem}
}

/* ── 2-Column Flow Grid (VS Code diagram) ── */
.arch-flow-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;max-width:560px;margin:0 auto}
.arch-flow-grid__col{display:flex;flex-direction:column;align-items:center;gap:0}
.arch-flow-grid__col .arch-flow__box{width:100%}
.arch-flow-grid__col .arch-flow__arrow{padding:.2rem 0}
@media(max-width:600px){
  .arch-flow-grid{grid-template-columns:1fr;gap:2rem;max-width:100%}
}

/* ── Scroll Reveal ── */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ── Timeline ── */
.timeline{position:relative;padding-left:2rem}
.timeline::before{content:'';position:absolute;left:7px;top:0;bottom:0;width:2px;background:var(--border)}
.timeline__item{position:relative;padding-bottom:2rem}
.timeline__item:last-child{padding-bottom:0}
.timeline__dot{position:absolute;left:-2rem;top:4px;width:16px;height:16px;border-radius:50%;border:2px solid var(--border);background:var(--bg)}
.timeline__dot--attack{border-color:var(--red);background:var(--red-a)}
.timeline__dot--detect{border-color:var(--cyan);background:var(--cyan-a)}
.timeline__dot--respond{border-color:var(--green);background:var(--green-a)}
.timeline__dot--recover{border-color:var(--blue);background:var(--blue-a)}
.timeline__time{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--t2);margin-bottom:.25rem}
.timeline__title{font-size:.95rem;font-weight:700;color:var(--t1);margin-bottom:.3rem}
.timeline__desc{font-size:.85rem;color:var(--t2);line-height:1.6}
.timeline__tags{display:flex;flex-wrap:wrap;gap:.35rem;margin-top:.4rem}
.timeline__tag{font-size:.68rem;padding:.15rem .5rem;border-radius:var(--r5);background:var(--bg-2);border:1px solid var(--border);color:var(--t3);font-weight:500}
.grid-timeline{display:grid;grid-template-columns:1fr 1fr;gap:2rem}
@media(max-width:768px){.grid-timeline{grid-template-columns:1fr;gap:1.5rem}}

/* ── Callouts ── */
.callout{padding:1rem 1.25rem;border-radius:var(--r3);border-left:3px solid;font-size:.95rem;line-height:1.65}
.callout--info{border-color:var(--blue);background:var(--blue-a)}
.callout--warn{border-color:var(--orange);background:var(--orange-a)}
.callout--tip{border-color:var(--green);background:var(--green-a)}
.callout strong{color:var(--t1)}

/* ── Inline code ── */
p code, li code, td code{background:var(--bg-2);padding:.15rem .4rem;border-radius:var(--r1);font-size:.88em;color:var(--cyan);border:1px solid var(--border)}

/* ── Utilities ── */
.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}.mt-6{margin-top:3rem}
.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}
.text-center{text-align:center}
.text-sm{font-size:.92rem}
.text-xs{font-size:.82rem}
.flex{display:flex}.items-center{align-items:center}.gap-1{gap:.5rem}.gap-2{gap:1rem}.gap-3{gap:1.5rem}

/* ── Feature Cards (sub-site cards) ── */
.feature-card{display:flex;flex-direction:column;gap:.75rem;padding:1.75rem;border-radius:var(--r4);background:var(--bg-1);border:1px solid var(--border);transition:all .3s var(--ease);text-decoration:none;cursor:pointer;position:relative;overflow:hidden}
.feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;border-radius:3px 3px 0 0;opacity:0;transition:opacity .3s;background:var(--fc-color,var(--blue))}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl);border-color:var(--border-2)}
.feature-card:hover::before{opacity:1}
.feature-card--blue{--fc-color:var(--blue)}
.feature-card--purple{--fc-color:var(--purple)}
.feature-card--cyan{--fc-color:var(--cyan)}
.feature-card--orange{--fc-color:var(--orange)}
.feature-card--green{--fc-color:var(--green)}
.feature-card--teal{--fc-color:var(--teal)}
.feature-card__icon{width:48px;height:48px;border-radius:var(--r3);display:flex;align-items:center;justify-content:center;font-size:1.4rem;flex-shrink:0}
.feature-card__title{font-size:1.15rem;font-weight:700;color:var(--t1)}
.feature-card__desc{font-size:.92rem;color:var(--t3);line-height:1.65}
.feature-card__link{font-size:.88rem;font-weight:600;color:var(--blue);display:inline-flex;align-items:center;gap:.3rem;margin-top:auto}
.feature-card__link svg{width:14px;height:14px;transition:transform .2s}
.feature-card:hover .feature-card__link svg{transform:translateX(3px)}

/* Clickable card links */
a.feature-card,a.card{color:inherit}
a.feature-card:hover,a.card:hover{color:inherit}
a.feature-card::after{content:'Learn more →';position:absolute;bottom:1rem;right:1.25rem;font-size:.82rem;font-weight:600;color:var(--fc-color,var(--blue));opacity:0;transform:translateX(-6px);transition:opacity .25s var(--ease),transform .25s var(--ease)}
a.feature-card:hover::after{opacity:1;transform:translateX(0)}
a.card{display:block;text-decoration:none}

/* External link indicator for cards */
a.card[target="_blank"]::after,a.resource-card[target="_blank"]::after{content:'Learn more \29C9';position:absolute;bottom:.75rem;right:1rem;font-size:.82rem;font-weight:600;color:var(--blue);opacity:0;transform:translateX(-6px);transition:opacity .25s var(--ease),transform .25s var(--ease)}
a.card[target="_blank"]:hover::after,a.resource-card[target="_blank"]:hover::after{opacity:1;transform:translateX(0)}

/* ── Cookie Consent Modal ── */
.cookie-modal-overlay{position:fixed;inset:0;z-index:10000;background:rgba(0,0,0,.55);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;visibility:hidden;transition:opacity .25s var(--ease),visibility 0s .25s}
.cookie-modal-overlay.visible{opacity:1;pointer-events:auto;visibility:visible;transition:opacity .25s var(--ease),visibility 0s 0s}
.cookie-modal{background:var(--bg);border:1px solid var(--border);border-radius:var(--r4);box-shadow:var(--shadow-xl);width:540px;max-width:calc(100vw - 2rem);max-height:calc(100vh - 4rem);overflow-y:auto;transform:scale(.94) translateY(10px);transition:transform .25s var(--ease)}
.cookie-modal-overlay.visible .cookie-modal{transform:scale(1) translateY(0)}
.cookie-modal__header{display:flex;align-items:center;justify-content:space-between;padding:1.25rem 1.5rem;border-bottom:1px solid var(--border)}
.cookie-modal__header h3{font-size:1.2rem;font-weight:700;color:var(--t1);margin:0}
.cookie-modal__close{width:32px;height:32px;border-radius:var(--r2);background:var(--bg-1);border:1px solid var(--border);color:var(--t3);display:flex;align-items:center;justify-content:center;font-size:1.3rem;cursor:pointer;transition:all .15s;line-height:1}
.cookie-modal__close:hover{background:var(--bg-2);color:var(--t1);border-color:var(--border-2)}
.cookie-modal__body{padding:1.25rem 1.5rem}
.cookie-modal__body>p{font-size:.95rem;color:var(--t3);margin-bottom:1.25rem;line-height:1.65}
.cookie-modal__category{border:1px solid var(--border);border-radius:var(--r3);padding:1rem 1.25rem;margin-bottom:.75rem}
.cookie-modal__category:last-child{margin-bottom:0}
.cookie-modal__cat-header{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.cookie-modal__cat-header strong{font-size:.95rem;color:var(--t1);display:block;margin-bottom:.15rem}
.cookie-modal__cat-header .cookie-modal__cat-desc{font-size:.82rem;color:var(--t3);line-height:1.5;margin:0}
.cookie-toggle{position:relative;display:inline-block;width:44px;height:24px;flex-shrink:0}
.cookie-toggle input{opacity:0;width:0;height:0;position:absolute}
.cookie-toggle__slider{position:absolute;inset:0;border-radius:24px;background:var(--bg-2);border:1px solid var(--border);cursor:pointer;transition:all .2s}
.cookie-toggle__slider::before{content:'';position:absolute;width:18px;height:18px;border-radius:50%;background:var(--t3);top:2px;left:2px;transition:all .2s}
.cookie-toggle input:checked+.cookie-toggle__slider{background:var(--blue);border-color:var(--blue)}
.cookie-toggle input:checked+.cookie-toggle__slider::before{transform:translateX(20px);background:#fff}
.cookie-toggle--disabled .cookie-toggle__slider{opacity:.6;cursor:not-allowed}
.cookie-modal__footer{display:flex;align-items:center;justify-content:flex-end;gap:.5rem;padding:1rem 1.5rem;border-top:1px solid var(--border);flex-wrap:wrap}
@media(max-width:480px){.cookie-modal__footer{flex-direction:column}.cookie-modal__footer .btn{width:100%;justify-content:center}}

/* ── Resource Link Cards ── */
.resource-card{display:flex;align-items:flex-start;gap:.85rem;padding:1.15rem 1.15rem 2.25rem;border:1px solid var(--border);border-radius:var(--r3);transition:all .2s var(--ease);text-decoration:none;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.resource-card:hover{border-color:var(--blue);box-shadow:var(--shadow-md);transform:translateY(-1px)}
.resource-card__icon{width:36px;height:36px;border-radius:var(--r2);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:1rem}
.resource-card__body{flex:1;min-width:0}
.resource-card__title{font-weight:600;font-size:.95rem;color:var(--t1);line-height:1.3}
.resource-card__desc{font-size:.85rem;color:var(--t3);margin-top:.2rem;line-height:1.5}

/* ── Learning Path Steps ── */
.path-step{display:flex;gap:1.25rem;padding:1.5rem;border:1px solid var(--border);border-radius:var(--r3);background:var(--bg-1);transition:all .2s var(--ease)}
.path-step:hover{border-color:var(--border-2);box-shadow:var(--shadow-md)}
.path-step__number{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.95rem;font-weight:800;flex-shrink:0}
.path-step__content{flex:1}
.path-step__title{font-size:1.05rem;font-weight:700;color:var(--t1);margin-bottom:.35rem}
.path-step__desc{font-size:.92rem;color:var(--t3);line-height:1.6}

/* ── Prose ── */
.prose{max-width:760px}
.prose h2{margin-top:2.5rem;margin-bottom:.75rem;font-size:1.4rem}
.prose h3{margin-top:2rem;margin-bottom:.5rem;font-size:1.15rem}
.prose p{margin-bottom:1rem;font-size:1rem;line-height:1.75;color:var(--t2)}
.prose ul,.prose ol{margin-bottom:1rem;padding-left:1.5rem}
.prose li{margin-bottom:.4rem;color:var(--t2)}
.prose ul li::before{content:'→';color:var(--blue);font-weight:600;margin-right:.5rem}

/* ── Sub-site header banner ── */
.subsite-banner{padding:calc(var(--nav-h) + 2rem) 0 1.75rem;position:relative;overflow:hidden;background:var(--bg-1);border-bottom:1px solid var(--border)}
.subsite-banner__breadcrumb{font-size:.85rem;color:var(--t3);margin-bottom:1.25rem;display:flex;align-items:center;flex-wrap:wrap;gap:.3rem}
.subsite-banner__breadcrumb a{color:var(--blue);text-decoration:none;transition:color .15s}
.subsite-banner__breadcrumb a:hover{color:var(--cyan)}
.subsite-banner__breadcrumb .bc-sep{color:var(--t4);margin:0 .1rem}
.subsite-banner__breadcrumb .bc-current{color:var(--blue);font-weight:600}
.breadcrumb{font-size:.85rem;color:var(--t3);margin-bottom:1rem;display:flex;align-items:center;flex-wrap:wrap;gap:.3rem}
.breadcrumb a{color:var(--blue);text-decoration:none;transition:color .15s}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .bc-sep{color:var(--t4);margin:0 .1rem}
.breadcrumb .bc-current{color:var(--blue);font-weight:600}
.subsite-banner__header{display:flex;align-items:center;gap:1.25rem}
.subsite-banner__icon{width:64px;height:64px;border-radius:var(--r3);background:var(--accent-a,var(--blue-a));display:flex;align-items:center;justify-content:center;font-size:2rem;flex-shrink:0}
.subsite-banner__title{font-size:clamp(1.6rem,3.5vw,2.2rem);color:var(--t1);margin-bottom:.25rem}
.subsite-banner__desc{font-size:1rem;color:var(--t3);max-width:640px}
@media(max-width:600px){
  .subsite-banner__header{flex-direction:column;text-align:center}
  .subsite-banner__icon{margin:0 auto}
}

/* ── MCP Architecture Diagram ── */
.mcp-diagram{
  background:var(--bg-1);border:1px solid var(--border);border-radius:var(--r4);
  padding:2.5rem 2rem 2rem;position:relative;overflow:hidden;box-shadow:var(--shadow-md);
  display:flex;flex-direction:column;align-items:center;gap:0
}
/* Host box */
.mcp-diagram__host{
  width:100%;max-width:640px;border:2px solid var(--blue);border-radius:var(--r3);
  padding:1.5rem 1.5rem 1.25rem;background:color-mix(in srgb,var(--blue) 6%,transparent);
  text-align:center;position:relative
}
.mcp-diagram__host-label{
  font-size:.95rem;font-weight:700;color:var(--blue);margin-bottom:1rem;letter-spacing:.02em
}
.mcp-diagram__clients{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap}
.mcp-diagram__client{
  padding:.55rem 1.1rem;border:1px solid var(--border-2);border-radius:var(--r2);
  background:var(--bg);font-size:.85rem;font-weight:600;color:var(--t2);
  box-shadow:var(--shadow-sm);white-space:nowrap;letter-spacing:.01em
}
/* Transport pipes */
.mcp-diagram__transport{
  display:flex;justify-content:center;gap:3.5rem;padding:.6rem 0;flex-wrap:wrap
}
.mcp-diagram__pipe{
  display:flex;flex-direction:column;align-items:center;gap:0
}
.mcp-diagram__pipe span{
  width:2px;height:28px;background:var(--border-2);display:block
}
.mcp-diagram__pipe em{
  font-style:normal;font-size:.72rem;font-weight:600;color:var(--t4);
  letter-spacing:.06em;text-transform:uppercase;padding:2px 0
}
/* Server boxes */
.mcp-diagram__servers{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;width:100%;max-width:640px
}
.mcp-diagram__server{
  border:1.5px solid color-mix(in srgb,var(--srv-color) 50%,var(--border));
  border-radius:var(--r3);padding:1.1rem 1rem .9rem;
  background:color-mix(in srgb,var(--srv-color) 5%,var(--bg));
  text-align:center;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)
}
.mcp-diagram__server:hover{
  border-color:var(--srv-color);box-shadow:0 0 0 3px color-mix(in srgb,var(--srv-color) 12%,transparent)
}
.mcp-diagram__server h5{
  font-size:.88rem;font-weight:700;color:var(--srv-color);margin:0 0 .15rem
}
.mcp-diagram__server>p{
  font-size:.75rem;color:var(--t3);margin:0 0 .6rem;font-weight:500
}
.mcp-diagram__server ul{
  list-style:none;padding:0;margin:0 auto;display:flex;flex-direction:column;gap:.2rem;width:fit-content
}
.mcp-diagram__server li{
  font-size:.78rem;color:var(--t3);display:flex;align-items:center;gap:.35rem
}
.mcp-diagram__server li::before{
  content:'';width:5px;height:5px;border-radius:50%;background:var(--srv-color);flex-shrink:0
}
@media(max-width:700px){
  .mcp-diagram{padding:1.25rem .75rem}
  .mcp-diagram__host{padding:1rem .75rem}
  .mcp-diagram__host-label{font-size:.85rem}
  .mcp-diagram__servers{grid-template-columns:1fr}
  .mcp-diagram__transport{gap:1rem;padding:.4rem 0}
  .mcp-diagram__clients{flex-direction:column;align-items:center;gap:.5rem}
  .mcp-diagram__client{font-size:.78rem;padding:.4rem .85rem}
  .mcp-diagram__server h5{font-size:.82rem}
  .mcp-diagram__server ul{gap:.15rem}
  .mcp-diagram__server li{font-size:.72rem}
}

/* ── Lab Filter Panel ── */
.lab-filter-panel{
  background:var(--bg-1);border:1px solid var(--border);border-radius:var(--r4);
  padding:2rem 2.5rem;position:relative;overflow:hidden;
  box-shadow:var(--shadow);max-width:960px;margin:0 auto
}
.lab-filter-panel::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--grad);border-radius:var(--r4) var(--r4) 0 0
}
.lab-filter-panel__header{
  display:flex;align-items:center;gap:.65rem;margin-bottom:1.25rem;padding-bottom:1rem;
  border-bottom:1px solid var(--border)
}
.lab-filter-panel__icon{font-size:1.3rem;line-height:1}
.lab-filter-panel__title{font-size:1.05rem;font-weight:700;color:var(--t1);flex:1}
.lab-filter-panel__count{
  font-size:.82rem;color:var(--t3);padding:.3rem .8rem;border-radius:var(--r5);
  background:var(--bg-2);border:1px solid var(--border);white-space:nowrap
}
.lab-filter-panel__count strong{color:var(--blue);font-weight:700}

/* ── Filter Chips ── */
.lab-filter{
  display:flex;flex-wrap:wrap;gap:.55rem;align-items:center
}
.lab-filter__sep{
  width:100%;font-size:.68rem;font-weight:700;color:var(--t2);
  text-transform:uppercase;letter-spacing:.1em;
  margin-top:.5rem;margin-bottom:-.1rem;padding-left:.15rem
}
.lab-filter__sep:first-of-type{margin-top:.15rem}
.lab-filter__btn{
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.5rem 1rem .5rem .65rem;font-size:.85rem;font-weight:600;font-family:var(--sans);
  color:var(--t3);background:var(--bg);border:1px solid var(--border);
  border-radius:var(--r3);cursor:pointer;white-space:nowrap;
  transition:all .24s var(--ease);position:relative;overflow:hidden
}
.lab-filter__btn::after{
  content:'';position:absolute;inset:0;opacity:0;
  background:linear-gradient(135deg, color-mix(in srgb, var(--dot) 8%, transparent), transparent);
  transition:opacity .24s var(--ease)
}
.lab-filter__btn:hover{
  color:var(--t1);border-color:var(--border-2);
  transform:translateY(-2px);box-shadow:var(--shadow-md)
}
.lab-filter__btn:hover::after{opacity:1}
.lab-filter__btn.active{
  color:var(--dot, var(--blue));
  background:var(--dot-a, var(--blue-a));
  border-color:color-mix(in srgb, var(--dot, var(--blue)) 40%, transparent);
  box-shadow:0 0 0 1px color-mix(in srgb, var(--dot) 15%, transparent),
             0 4px 20px color-mix(in srgb, var(--dot, var(--blue)) 15%, transparent),
             var(--shadow-sm);
  transform:translateY(-1px)
}
.lab-filter__btn.active::after{opacity:1}

/* Filter icon */
.lab-filter__btn .filter-icon{
  width:30px;height:30px;border-radius:var(--r2);
  display:flex;align-items:center;justify-content:center;font-size:.82rem;
  background:color-mix(in srgb, var(--dot) 10%, transparent);flex-shrink:0;
  transition:transform .2s var(--ease),box-shadow .2s
}
.lab-filter__btn.active .filter-icon{
  background:color-mix(in srgb, var(--dot) 18%, transparent);
  transform:scale(1.08);
  box-shadow:0 0 10px color-mix(in srgb, var(--dot) 20%, transparent)
}
.lab-filter__btn .filter-label{position:relative;z-index:1}
.lab-filter__btn .filter-count{
  font-size:.68rem;font-weight:700;color:var(--t4);position:relative;z-index:1;
  background:var(--bg-2);padding:.1rem .4rem;border-radius:var(--r1);
  min-width:1.2rem;text-align:center;line-height:1.4;
  transition:background .2s,color .2s
}
.lab-filter__btn.active .filter-count{
  background:color-mix(in srgb, var(--dot) 20%, transparent);
  color:var(--dot, var(--blue))
}
@media(max-width:768px){
  .lab-filter-panel{padding:1.25rem 1.25rem 1rem}
  .lab-filter-panel__header{margin-bottom:1rem;padding-bottom:.75rem}
  .lab-filter{gap:.4rem}
  .lab-filter__btn{padding:.4rem .75rem .4rem .5rem;font-size:.78rem}
  .lab-filter__btn .filter-icon{width:24px;height:24px;font-size:.72rem}
  .lab-filter__sep{font-size:.62rem;margin-top:.35rem}
}
@media(max-width:480px){
  .lab-filter-panel__count{display:none}
  .lab-filter-panel__title{font-size:.95rem}
}

/* ── Lab Cards ── */
a.lab-card{text-decoration:none;color:inherit;cursor:pointer}
.lab-card{
  display:flex;gap:1.15rem;padding:1.25rem 1.5rem;
  background:var(--bg);border:1px solid var(--border);border-radius:var(--r3);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .18s var(--ease)
}
.lab-card:hover{
  border-color:var(--green);
  box-shadow:0 0 0 3px color-mix(in srgb,var(--green) 12%,transparent);
  transform:translateY(-2px)
}
.lab-card__number{
  font-size:1.5rem;font-weight:800;color:var(--green);opacity:.55;
  min-width:2rem;line-height:1;padding-top:.3rem
}
.lab-card__body{flex:1;min-width:0}
.lab-card__meta{
  display:flex;align-items:center;gap:.45rem;flex-wrap:wrap;margin-bottom:.45rem
}
.lab-card__tag{
  display:inline-flex;align-items:center;justify-content:center;
  font-size:.75rem;font-weight:600;padding:.3rem .75rem;border-radius:var(--r5);
  letter-spacing:.04em;text-transform:uppercase;line-height:1.3
}
.lab-card__tag--beginner{background:color-mix(in srgb,var(--green) 15%,transparent);color:var(--green)}
.lab-card__tag--intermediate{background:color-mix(in srgb,var(--orange) 15%,transparent);color:var(--orange)}
.lab-card__tag--advanced{background:color-mix(in srgb,var(--red) 15%,transparent);color:var(--red)}
.lab-card__duration{font-size:.68rem;color:var(--t4);font-weight:500}
.lab-card__title{font-size:.92rem;font-weight:700;color:var(--t1);margin:0 0 .3rem}
.lab-card__desc{font-size:.8rem;color:var(--t3);margin:0;line-height:1.55}
@media(max-width:600px){
  .lab-card{flex-direction:column;gap:.75rem}
  .lab-card__number{font-size:1.2rem}
}

/* ── Copy-to-clipboard button ── */
pre{position:relative}
.copy-btn{
  position:absolute;top:.5rem;right:.5rem;
  display:inline-flex;align-items:center;gap:.35rem;
  padding:.3rem .6rem;
  font-size:.72rem;font-weight:600;font-family:var(--sans);
  color:var(--code-muted);background:var(--code-header);
  border:1px solid var(--code-border);border-radius:var(--r2);
  cursor:pointer;transition:all .2s;
  z-index:2;opacity:.6;
}
.copy-btn:hover{opacity:1;color:var(--code-text);background:var(--code-bg);border-color:var(--code-muted)}
.copy-btn.copied{color:var(--green);border-color:var(--green);opacity:1}
.copy-btn svg{flex-shrink:0}

/* ── Search ── */
.search-trigger{display:inline-flex;align-items:center;gap:.4rem;padding:.35rem .75rem;border:1px solid var(--border);border-radius:var(--r5);background:var(--bg-1);color:var(--t3);font-size:.82rem;cursor:text;transition:all .2s;margin-right:.5rem;flex:1;min-width:0;position:relative}
.search-trigger:focus-within{border-color:var(--blue);box-shadow:0 0 0 2px var(--blue-a)}
.search-trigger__input{flex:1;border:none;background:transparent;font-size:.82rem;font-family:var(--sans);color:var(--t1);outline:none;min-width:0;padding:0}
.search-trigger__input::placeholder{color:var(--t3);font-weight:500}
.search-trigger__kbd{display:inline-flex;align-items:center;gap:.2rem;margin-left:auto;font-family:var(--sans);flex-shrink:0}
.search-trigger__kbd kbd{font-family:var(--sans);font-size:.62rem;padding:.05rem .3rem;border-radius:3px;background:var(--bg-2);border:1px solid var(--border);color:var(--t4);min-width:14px;text-align:center}
.search-trigger__results{position:absolute;top:calc(100% + 6px);left:0;right:0;min-width:320px;background:var(--bg);border:1px solid var(--border);border-radius:var(--r3);box-shadow:var(--shadow-lg);max-height:360px;overflow-y:auto;z-index:300;display:none;padding:.4rem}
.search-trigger__results.visible{display:block}
.search-trigger__results .search-result{display:block;padding:.5rem .75rem;border-radius:var(--r2);text-decoration:none;transition:background .1s}
.search-trigger__results .search-result:hover,.search-trigger__results .search-result.active{background:var(--bg-2)}
.search-trigger__results .search-result__title{font-size:.85rem;font-weight:600;color:var(--t1)}
.search-trigger__results .search-result__desc{font-size:.75rem;color:var(--t3);margin-top:.1rem}
.search-trigger__results .search-group__label{font-size:.65rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--t2);padding:.35rem .75rem}
.search-trigger__hint{display:flex;align-items:center;justify-content:center;gap:.3rem;padding:.5rem;border-top:1px solid var(--border);font-size:.72rem;color:var(--t3);margin-top:.2rem}
.search-trigger__hint kbd{font-family:var(--sans);font-size:.6rem;padding:.05rem .25rem;border-radius:3px;background:var(--bg-2);border:1px solid var(--border);color:var(--t4)}
.search-trigger__ai{display:flex;align-items:center;gap:.3rem;padding:.25rem .6rem;font-size:.72rem;font-weight:600;font-family:var(--sans);color:var(--blue);background:var(--blue-a);border:1px solid transparent;border-radius:var(--r5);cursor:pointer;transition:all .15s;white-space:nowrap;flex-shrink:0}
.search-trigger__ai:hover{border-color:var(--blue);background:var(--blue-a)}
@media(max-width:960px){
  .search-trigger{flex:1;min-width:120px;cursor:text}
  .search-trigger__kbd,.search-trigger__ai{display:none}
  .search-trigger__results{position:fixed;top:auto;left:1rem;right:1rem;min-width:0;max-width:none;margin-top:6px}
}
@media(max-width:480px){
  .search-trigger{margin-right:.25rem;min-width:120px;flex:1}
  .search-trigger__input{font-size:.85rem}
}

.search-overlay{position:fixed;inset:0;z-index:9999;background:rgba(0,0,0,.5);backdrop-filter:blur(4px);display:flex;align-items:flex-start;justify-content:center;padding-top:min(20vh,120px);opacity:0;visibility:hidden;transition:opacity .2s,visibility 0s .2s}
.search-overlay.open{opacity:1;visibility:visible;transition:opacity .2s}

.search-modal{width:90%;max-width:620px;background:var(--bg-1);border:1px solid var(--border);border-radius:var(--r3);box-shadow:0 20px 60px rgba(0,0,0,.3);display:flex;flex-direction:column;max-height:70vh;animation:search-in .2s var(--ease);overflow:hidden}
@keyframes search-in{from{opacity:0;transform:scale(.96) translateY(-8px)}to{opacity:1;transform:scale(1) translateY(0)}}

.search-modal__header{padding:.75rem 1rem;border-bottom:1px solid var(--border)}
.search-modal__input-wrap{display:flex;align-items:center;gap:.6rem}
.search-modal__icon{width:20px;height:20px;color:var(--t3);flex-shrink:0}
.search-modal__input{flex:1;border:none;background:transparent;font-size:1rem;font-family:var(--sans);color:var(--t1);outline:none}
.search-modal__input::placeholder{color:var(--t4)}
.search-modal__kbd{font-family:var(--sans);font-size:.68rem;padding:.15rem .45rem;border-radius:4px;background:var(--bg-2);border:1px solid var(--border);color:var(--t4);flex-shrink:0}

.search-modal__body{flex:1;overflow-y:auto;padding:.75rem}
.search-modal__footer{display:flex;gap:1.25rem;padding:.6rem 1rem;border-top:1px solid var(--border);font-size:.75rem;color:var(--t4);align-items:center}
.search-modal__ai-btn{margin-left:auto;display:inline-flex;align-items:center;gap:.4rem;padding:.3rem .75rem;font-size:.75rem;font-weight:600;font-family:var(--sans);color:var(--blue);background:var(--blue-a);border:1px solid transparent;border-radius:var(--r5);cursor:pointer;transition:all .15s;white-space:nowrap}
.search-modal__ai-btn:hover{border-color:var(--blue);background:var(--blue-a)}
.search-modal__ai-btn kbd{font-family:var(--sans);font-size:.6rem;padding:.1rem .3rem;border-radius:3px;background:var(--bg-2);border:1px solid var(--border);color:var(--t3);min-width:16px;text-align:center}
.search-modal__ai-icon{font-size:.8rem}
.search-modal__hint{display:inline-flex;align-items:center;gap:.3rem}
.search-modal__hint kbd{font-family:var(--sans);font-size:.65rem;padding:.1rem .3rem;border-radius:3px;background:var(--bg-2);border:1px solid var(--border);min-width:18px;text-align:center}
@media(max-width:960px){.search-modal__footer{display:none}}
@media(hover:none) and (pointer:coarse){.search-modal__footer{display:none}}

.search-empty{text-align:center;padding:1.5rem .5rem}
.search-shortcuts{display:flex;flex-wrap:wrap;gap:.4rem;justify-content:center;margin-top:1rem}
.search-shortcut{padding:.35rem .7rem;font-size:.78rem;font-weight:500;border:1px solid var(--border);border-radius:var(--r5);background:var(--bg);color:var(--t2);cursor:pointer;transition:all .15s;font-family:var(--sans)}
.search-shortcut:hover{border-color:var(--blue);color:var(--blue)}

.search-no-results{text-align:center;padding:2rem .5rem}

.search-group{margin-bottom:.75rem}
.search-group__label{font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--t2);padding:.35rem .75rem}

.search-result{display:block;padding:.6rem .75rem;border-radius:var(--r2);text-decoration:none;transition:background .12s;cursor:pointer}
.search-result:hover,.search-result.active{background:var(--bg-2)}
.search-result__title{font-size:.9rem;font-weight:600;color:var(--t1);line-height:1.3}
.search-result__desc{font-size:.78rem;color:var(--t3);line-height:1.4;margin-top:.15rem}
.search-result mark{background:var(--blue-a);color:var(--blue);border-radius:2px;padding:0 1px}

/* ── Documentation Resources Table ── */
.doc-table{width:100%;border-collapse:collapse}
.doc-table th{text-align:left;padding:.6rem 1rem;font-weight:600;color:var(--t1);font-size:.8rem;text-transform:uppercase;letter-spacing:.04em;border-bottom:2px solid var(--border)}
.doc-table td{padding:.75rem 1rem;color:var(--t2);font-size:.9rem;border-bottom:1px solid var(--border);vertical-align:top;line-height:1.5}
.doc-table tbody tr:last-child td{border-bottom:none}
.doc-table tbody tr:hover{background:var(--bg-3)}
.doc-table td:first-child{font-weight:500}
@media(max-width:900px){
  .doc-table{display:block;overflow-x:auto}
  .doc-table th,.doc-table td{padding:.5rem .6rem;font-size:.82rem}
}

/* ── FAQ Accordion ── */
details summary::-webkit-details-marker{display:none}
details summary::marker{display:none}
details[open] summary svg{transform:rotate(90deg)}
details summary:hover{background:var(--bg-3)}