/* Ziek site v2 components. Light theme only. Brand values come from brand/kit tokens (--zk-*); nothing is defined here. */
*,*::before,*::after{box-sizing:border-box}
.zn{margin:0;background:var(--zk-bg-primary);color:var(--zk-text-primary);font:400 16px/1.6 var(--zk-font-sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
.zn a{color:inherit;text-decoration:none}
.zn img{max-width:100%}
.zn h1,.zn h2,.zn h3,.zn h4{margin:0;font-weight:600;color:var(--zk-text-primary);text-wrap:balance}
.zn p{margin:0;color:var(--zk-text-secondary)}
.zn code,.zn pre{font-family:var(--zk-font-mono)}
.zn :focus-visible{outline:2px solid var(--zk-ink);outline-offset:3px;border-radius:4px}
.zn-wrap{max-width:var(--zk-container-max);margin:0 auto;padding:0 32px}
.zn-narrow{max-width:760px;margin:0 auto}
.zn-skip{position:absolute;left:-9999px;top:8px;background:var(--zk-ink);color:#fff;padding:8px 12px;border-radius:8px;z-index:100}
.zn-skip:focus{left:8px}
.zn-mono{font-family:var(--zk-font-mono)}

/* nav */
.zn-nav{position:sticky;top:0;z-index:60;background:color-mix(in srgb,#fff 90%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--zk-border-subtle)}
.zn-nav-in{display:flex;align-items:center;justify-content:space-between;min-height:88px;gap:20px}
.zn-brand-block{flex-shrink:0;width:190px}
.zn-brand-tagline{display:block;margin:6px 0 0;font:600 10px/1.3 var(--zk-font-sans);letter-spacing:.16em;text-transform:uppercase;color:var(--zk-text-secondary);white-space:nowrap}
.zn-brand{display:flex;align-items:center;gap:10px}
.zn-brand .zn-tile{width:32px;height:32px;display:block}
.zn-brand .zn-word{display:block;width:60px;height:34px;overflow:hidden}
.zn-brand .zn-word img{height:34px;width:auto;max-width:none;margin-left:-48px;display:block}
.zn-links{display:flex;align-items:center;gap:6px;font-size:14px;font-weight:500}
.zn-links>a,.zn-dd>button{padding:8px 12px;border-radius:8px;color:var(--zk-text-secondary);background:none;border:0;font:inherit;cursor:pointer;display:inline-flex;align-items:center;gap:6px}
.zn-links>a:hover,.zn-dd>button:hover,.zn-links a[aria-current=page],.zn-dd>button[aria-expanded=true]{color:var(--zk-text-primary);background:var(--zk-bg-subtle)}
.zn-dd{position:relative}
.zn-dd>button svg{width:12px;height:12px;transition:transform .2s}
.zn-dd>button[aria-expanded=true] svg{transform:rotate(180deg)}
.zn-menu{position:absolute;top:calc(100% + 8px);left:0;min-width:300px;background:#fff;border:1px solid var(--zk-border-subtle);border-radius:12px;padding:8px;box-shadow:var(--zk-shadow-md);display:none}
.zn-menu.open{display:block}
.zn-menu a{display:block;padding:12px;border-radius:8px}
.zn-menu a:hover{background:var(--zk-bg-subtle)}
.zn-menu b{display:block;font-weight:600;color:var(--zk-text-primary);font-size:14px}
.zn-menu span{display:block;font-size:13px;color:var(--zk-text-secondary);margin-top:2px;line-height:1.4}
.zn-right{display:flex;align-items:center;gap:8px}
.zn-gh{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:8px;font-size:14px;font-weight:500;color:var(--zk-text-secondary)}
.zn-gh:hover{color:var(--zk-text-primary);background:var(--zk-bg-subtle)}
.zn-gh svg{width:18px;height:18px;fill:currentColor}
.zn-burger{display:none;width:40px;height:40px;border:1px solid var(--zk-border-subtle);background:#fff;border-radius:8px;cursor:pointer;align-items:center;justify-content:center;padding:0}
.zn-burger svg{width:20px;height:20px;stroke:var(--zk-ink);fill:none;stroke-width:2;stroke-linecap:round}
.zn-mobile{display:none;border-top:1px solid var(--zk-border-subtle);background:#fff;padding:12px 0 20px}
.zn-mobile.open{display:block}
.zn-mobile a{display:block;padding:12px 4px;font-weight:500;border-bottom:1px solid var(--zk-border-subtle)}
.zn-mobile small{display:block;font:500 11px var(--zk-font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--zk-text-tertiary);padding:14px 4px 4px}
.zn-mobile .zn-btn{margin-top:16px;width:100%}

/* buttons */
.zn-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:12px;font:600 14px/1.2 var(--zk-font-sans);border:1px solid transparent;cursor:pointer;transition:background .15s,border-color .15s,transform .15s;white-space:nowrap}
.zn-btn-lg{padding:15px 24px;font-size:15px}
.zn-btn-sm{padding:9px 14px;font-size:13px;border-radius:8px}
.zn .zn-btn-primary{background:var(--zk-yellow-500);color:var(--zk-ink)}
.zn .zn-btn-primary:hover{background:var(--zk-yellow-400)}
.zn .zn-btn-secondary{background:#fff;color:var(--zk-ink);border-color:var(--zk-border-strong)}
.zn .zn-btn-secondary:hover{border-color:var(--zk-ink)}
.zn .zn-btn-ink{background:var(--zk-ink);color:var(--zk-yellow-500)}
.zn .zn-btn-ink:hover{background:#2a271d}
.zn-btn:active{transform:translateY(1px)}

/* type */
.zn-pill{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:9999px;border:1px solid var(--zk-border-subtle);background:var(--zk-bg-warm);font:500 12px/1 var(--zk-font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--zk-yellow-800)}
.zn-pill::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--zk-yellow-500)}
.zn-page-hero>.zn-wrap>.zn-pill{margin-bottom:18px}
.zn-page-hero .zn-meta{display:flex;flex-wrap:wrap;align-items:center;column-gap:10px;row-gap:6px;margin-top:18px}
.zn-eyebrow{font:500 12px/1 var(--zk-font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--zk-yellow-800)}
.zn-h1{font-size:clamp(40px,6.4vw,76px);line-height:1.03;letter-spacing:-.035em}
.zn-h2{font-size:clamp(30px,4vw,48px);line-height:1.08;letter-spacing:-.03em}
.zn-h3{font-size:20px;line-height:1.3;letter-spacing:-.01em}
.zn-lead{font-size:clamp(17px,1.7vw,20px);line-height:1.55;color:var(--zk-text-secondary)}
.zn-hl{background:linear-gradient(var(--zk-yellow-500),var(--zk-yellow-500)) center/100% 90% no-repeat;padding:0 .1em;-webkit-box-decoration-break:clone;box-decoration-break:clone;color:var(--zk-ink)}

/* sections */
.zn-sec{padding:104px 0;border-top:1px solid var(--zk-border-subtle)}
.zn-sec.tint{background:var(--zk-bg-subtle)}
.zn-head{max-width:760px;margin:0 0 48px}
.zn-head.center{margin:0 auto 56px;text-align:center}
.zn-head .zn-eyebrow{display:block;margin-bottom:16px}
.zn-head p{margin-top:16px;font-size:18px}

/* hero */
.zn-hero{position:relative;padding:92px 0 72px;text-align:center;overflow:hidden;border-bottom:1px solid var(--zk-border-subtle)}
.zn-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--zk-border-subtle) 1px,transparent 1px),linear-gradient(90deg,var(--zk-border-subtle) 1px,transparent 1px);background-size:64px 64px;opacity:.35;-webkit-mask-image:radial-gradient(ellipse 70% 65% at 50% 30%,#000 20%,transparent 75%);mask-image:radial-gradient(ellipse 70% 65% at 50% 30%,#000 20%,transparent 75%)}
.zn-hero::after{content:"";position:absolute;left:50%;top:-220px;width:980px;height:560px;transform:translateX(-50%);background:radial-gradient(closest-side,color-mix(in srgb,var(--zk-yellow-500) 22%,transparent),transparent);pointer-events:none}
.zn-hero>.zn-wrap{position:relative;z-index:1}
.zn-hero h1{max-width:15ch;margin:24px auto 0}
.zn-hero .zn-lead{max-width:62ch;margin:26px auto 0}
.zn-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:36px}
.zn-page-hero{padding:88px 0 72px;border-bottom:1px solid var(--zk-border-subtle);position:relative;overflow:hidden}
.zn-page-hero.center{text-align:center}
.zn-page-hero h1{margin-top:20px;max-width:20ch}
.zn-page-hero.center h1{margin-left:auto;margin-right:auto}
.zn-page-hero .zn-lead{margin-top:22px;max-width:64ch}
.zn-page-hero.center .zn-lead{margin-left:auto;margin-right:auto}
.zn-page-hero.center .zn-cta{justify-content:center}
.zn-page-hero .zn-cta{justify-content:flex-start}

/* proof strip (GitHub) */
.zn-proof{display:inline-flex;align-items:center;flex-wrap:wrap;justify-content:center;gap:6px 18px;margin-top:40px;padding:12px 18px;background:#fff;border:1px solid var(--zk-border-subtle);border-radius:16px;box-shadow:var(--zk-shadow-sm);font-size:14px;color:var(--zk-text-secondary);text-align:left}
.zn-proof a{display:inline-flex;align-items:center;gap:8px;color:var(--zk-text-primary);font-weight:600}
.zn-proof a:hover{text-decoration:underline}
.zn-proof svg{width:18px;height:18px;fill:currentColor}
.zn-proof .sep{width:1px;height:18px;background:var(--zk-border-subtle)}
.zn-badge{display:inline-flex;align-items:center;gap:6px;padding:3px 8px;border-radius:4px;font:600 11px/1 var(--zk-font-mono);letter-spacing:.06em;text-transform:uppercase;border:1px solid var(--zk-border-strong);color:var(--zk-text-secondary);background:#fff}
.zn-badge.open{color:var(--zk-success-text);border-color:var(--zk-success-border);background:var(--zk-success-subtle)}
.zn-badge.merged{color:var(--zk-yellow-500);background:var(--zk-ink);border-color:var(--zk-ink)}
.zn-badge.warn{color:var(--zk-warning-text);border-color:var(--zk-warning-border);background:var(--zk-warning-subtle)}
.zn-badge.live{color:var(--zk-success-text);border-color:var(--zk-success-border);background:var(--zk-success-subtle)}
.zn-badge.illus{color:var(--zk-yellow-800);border-color:var(--zk-yellow-200);background:var(--zk-yellow-50)}

/* release-impact demo */
.zn-demo{margin:64px auto 0;max-width:1080px;background:#fff;border:1px solid var(--zk-border-subtle);border-radius:16px;box-shadow:var(--zk-shadow-md);text-align:left;overflow:hidden}
.zn-demo-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:14px 20px;border-bottom:1px solid var(--zk-border-subtle);background:var(--zk-bg-subtle)}
.zn-demo-bar strong{font-size:14px;font-weight:600}
.zn-demo-grid{display:grid;grid-template-columns:minmax(240px,300px) 28px minmax(0,1fr);gap:0}
.zn-up{padding:24px;border-right:0}
.zn-up .k{font:500 11px var(--zk-font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--zk-text-tertiary)}
.zn-up h3{margin:8px 0 10px;font-size:18px}
.zn-up code{display:block;font-size:13px;background:var(--zk-bg-subtle);border:1px solid var(--zk-border-subtle);border-radius:8px;padding:8px 10px;margin:6px 0;color:var(--zk-text-primary)}
.zn-up p{font-size:14px;margin-top:12px;line-height:1.5}
.zn-rail{position:relative;background:var(--zk-yellow-500);border-left:1px solid var(--zk-ink);border-right:1px solid var(--zk-ink)}
.zn-rail span{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) rotate(-90deg);font:600 10px var(--zk-font-mono);letter-spacing:.2em;color:var(--zk-ink);white-space:nowrap}
.zn-out{padding:20px 24px 24px}
.zn-out-list{display:grid;gap:8px}
.zn-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:center;width:100%;text-align:left;padding:12px 14px;background:#fff;border:1px solid var(--zk-border-subtle);border-radius:12px;cursor:pointer;font:inherit;color:inherit;transition:border-color .15s,background .15s}
.zn-row:hover{border-color:var(--zk-border-strong)}
.zn-row[aria-selected=true]{border-color:var(--zk-ink);background:var(--zk-yellow-50);box-shadow:inset 3px 0 0 var(--zk-yellow-500)}
.zn-row .name{font:500 13px var(--zk-font-mono);color:var(--zk-text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:flex;align-items:center;gap:8px}
.zn-row .name i{font-style:normal}
.zn-v{font:600 11px/1 var(--zk-font-mono);letter-spacing:.06em;text-transform:uppercase;padding:6px 8px;border-radius:4px;border:1px solid var(--zk-border-strong);color:var(--zk-text-secondary);white-space:nowrap}
.zn-v.mig{color:var(--zk-success-text);border-color:var(--zk-success-border);background:var(--zk-success-subtle)}
.zn-v.rev{color:var(--zk-warning-text);border-color:var(--zk-warning-border);background:var(--zk-warning-subtle)}
.zn-detail{margin-top:14px;padding:16px 18px;border:1px solid var(--zk-border-subtle);border-radius:12px;background:var(--zk-bg-subtle)}
.zn-detail h4{font-size:15px;margin-bottom:6px}
.zn-detail p{font-size:14px;line-height:1.55}
.zn-detail p+p{margin-top:8px}
.zn-detail a{text-decoration:underline;text-underline-offset:3px;color:var(--zk-text-primary);font-weight:500}
.zn-note{margin-top:14px;font-size:13px;color:var(--zk-text-tertiary)}

/* cards, grids */
.zn-grid{display:grid;gap:16px}
.zn-grid.c2{grid-template-columns:repeat(2,minmax(0,1fr))}
.zn-grid.c3{grid-template-columns:repeat(3,minmax(0,1fr))}
.zn-grid.c4{grid-template-columns:repeat(4,minmax(0,1fr))}
.zn-card{background:#fff;border:1px solid var(--zk-border-subtle);border-radius:16px;padding:28px;display:flex;flex-direction:column;gap:12px;transition:border-color .15s,box-shadow .15s}
a.zn-card:hover{border-color:var(--zk-border-strong);box-shadow:var(--zk-shadow-md)}
.zn-card .num{font:600 12px var(--zk-font-mono);letter-spacing:.1em;color:var(--zk-yellow-800)}
.zn-card p{font-size:15px;line-height:1.6}
.zn-card.hl{background:var(--zk-yellow-500);border-color:var(--zk-ink)}
.zn-card.hl p,.zn-card.hl h3,.zn-card.hl .num{color:var(--zk-ink)}
.zn-card .more{margin-top:auto;font-weight:600;font-size:14px;color:var(--zk-text-primary)}
.zn-steps{counter-reset:s;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;border:1px solid var(--zk-border-subtle);border-radius:16px;overflow:hidden;background:#fff}
.zn-step{padding:24px 20px;border-right:1px solid var(--zk-border-subtle);display:flex;flex-direction:column;gap:8px}
.zn-step:last-child{border-right:0}
.zn-step.key{background:var(--zk-yellow-50)}
.zn-step .num{font:600 12px var(--zk-font-mono);color:var(--zk-yellow-800);letter-spacing:.1em}
.zn-step h3{font-size:18px}
.zn-step p{font-size:14px;line-height:1.55}

/* stats */
.zn-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border:1px solid var(--zk-border-subtle);border-radius:16px;overflow:hidden;background:#fff}
.zn-stat{padding:22px 24px;border-right:1px solid var(--zk-border-subtle)}
.zn-stat:last-child{border-right:0}
.zn-stat b{display:block;font:600 30px/1.1 var(--zk-font-mono);letter-spacing:-.03em;color:var(--zk-text-primary)}
.zn-stat span{display:block;margin-top:6px;font-size:13px;color:var(--zk-text-secondary);line-height:1.4}

/* code */
.zn-code{border:1px solid var(--zk-border-subtle);border-radius:12px;background:var(--zk-bg-subtle);overflow:hidden}
.zn-code-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 14px;border-bottom:1px solid var(--zk-border-subtle);background:#fff;font:500 12px var(--zk-font-mono);color:var(--zk-text-secondary)}
.zn-copy{font:600 12px var(--zk-font-sans);padding:5px 10px;border:1px solid var(--zk-border-strong);background:#fff;border-radius:8px;cursor:pointer;color:var(--zk-ink)}
.zn-copy:hover{border-color:var(--zk-ink)}
.zn-code pre{margin:0;padding:16px 0;overflow-x:auto;font-size:13px;line-height:1.65;color:var(--zk-text-primary)}
.zn-code pre span.l{display:block;padding:0 16px;white-space:pre}
.zn-code pre span.add{background:var(--zk-success-subtle);box-shadow:inset 3px 0 0 var(--zk-success-base)}
.zn-code pre span.del{background:var(--zk-error-subtle);box-shadow:inset 3px 0 0 var(--zk-error-base)}
.zn-diff-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:22px}
.zn-diff-card{background:#fff;border:1px solid var(--zk-border-subtle);border-radius:18px;padding:20px;box-shadow:0 10px 30px rgba(21,21,21,.04)}
.zn-diff-header{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.zn-diff-kicker{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--zk-bg-warm);border:1px solid var(--zk-border-subtle);font:600 11px/1 var(--zk-font-mono);letter-spacing:.08em;color:var(--zk-yellow-800)}
.zn-diff-card .zn-h3{font-size:clamp(20px,2vw,26px);letter-spacing:-.02em}
.zn-code-compact{border-radius:14px;overflow:hidden}
.zn-code-compact .zn-code-top{padding:10px 12px}
.zn-code-compact pre{padding:14px 14px 16px;font-size:12.5px;line-height:1.7}
.zn-code-compact code{white-space:pre-wrap}
.zn-code .k,.zn-code .kn,.zn-code .kc,.zn-code .ow{color:#8b3a8f}
.zn-code .s,.zn-code .s1,.zn-code .s2,.zn-code .sa,.zn-code .si{color:#0b6b4d}
.zn-code .c1,.zn-code .c,.zn-code .cm{color:#6f6f6f;font-style:italic}
.zn-code .nf,.zn-code .nc{color:#1f4f8f}
.zn-code .mi,.zn-code .kc{color:#9a5b00}
.zn-code .nb,.zn-code .bp{color:#1f4f8f}
.zn-compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}

/* tables */
.zn-table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--zk-border-subtle);border-radius:12px;overflow:hidden;font-size:14px;background:#fff}
.zn-table th,.zn-table td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--zk-border-subtle);vertical-align:top}
.zn-table tr:last-child td,.zn-table tr:last-child th{border-bottom:0}
.zn-table thead th{font:500 12px var(--zk-font-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--zk-text-tertiary);background:var(--zk-bg-subtle)}
.zn-table td{color:var(--zk-text-secondary)}
.zn-table td strong{color:var(--zk-text-primary)}
.zn-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* timeline */
.zn-tl{list-style:none;margin:0;padding:0;border-left:2px solid var(--zk-border-subtle);margin-left:6px}
.zn-tl li{position:relative;padding:0 0 28px 28px}
.zn-tl li::before{content:"";position:absolute;left:-7px;top:5px;width:12px;height:12px;border-radius:50%;background:#fff;border:2px solid var(--zk-ink)}
.zn-tl li.ok::before{background:var(--zk-yellow-500)}
.zn-tl time{font:500 12px var(--zk-font-mono);color:var(--zk-text-tertiary);letter-spacing:.04em}
.zn-tl b{display:block;font-weight:600;margin:2px 0}
.zn-tl p{font-size:15px}
.zn-tl a{text-decoration:underline;text-underline-offset:3px;color:var(--zk-text-primary)}

/* prose */
.zn-prose p{font-size:17px;line-height:1.7;margin:0 0 18px}
.zn-prose h2{font-size:clamp(26px,3vw,34px);letter-spacing:-.02em;margin:48px 0 16px}
.zn-prose h3{font-size:20px;margin:32px 0 10px}
.zn-prose ul{padding-left:22px;color:var(--zk-text-secondary);font-size:17px;line-height:1.7}
.zn-prose li{margin-bottom:8px}
.zn-prose a{color:var(--zk-text-primary);text-decoration:underline;text-decoration-color:var(--zk-yellow-500);text-decoration-thickness:2px;text-underline-offset:3px}
.zn-prose code{font-size:.88em;background:var(--zk-bg-subtle);border:1px solid var(--zk-border-subtle);border-radius:4px;padding:1px 5px}
.zn-callout{border-left:3px solid var(--zk-yellow-500);background:var(--zk-bg-warm);border-radius:0 12px 12px 0;padding:18px 22px;margin:28px 0}
.zn-callout p{margin:0;color:var(--zk-text-primary);font-size:16px}
details.zn-tech{border:1px solid var(--zk-border-subtle);border-radius:12px;background:#fff;margin-top:16px}
details.zn-tech summary{cursor:pointer;padding:16px 20px;font-weight:600;list-style:none;display:flex;justify-content:space-between}
details.zn-tech summary::after{content:"+";font-family:var(--zk-font-mono)}
details.zn-tech[open] summary::after{content:"–"}
details.zn-tech .in{padding:0 20px 20px}

/* signature band */
.zn-band{background:var(--zk-yellow-500);color:var(--zk-ink);padding:72px 0;border-top:1px solid var(--zk-ink);border-bottom:1px solid var(--zk-ink)}
.zn-band-in{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.zn-band h2{color:var(--zk-ink);font-size:clamp(28px,4vw,48px);letter-spacing:-.03em;line-height:1.08;max-width:20ch}
.zn-band p{color:var(--zk-ink);margin-top:14px;max-width:52ch}

/* blog */
.zn-filters{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 32px}
.zn-chip{padding:8px 14px;border-radius:9999px;border:1px solid var(--zk-border-strong);background:#fff;font:500 13px var(--zk-font-sans);cursor:pointer;color:var(--zk-text-secondary)}
.zn-chip:hover{border-color:var(--zk-ink);color:var(--zk-ink)}
.zn-chip[aria-pressed=true]{background:var(--zk-ink);color:var(--zk-yellow-500);border-color:var(--zk-ink)}
.zn-chip small{opacity:.7;margin-left:4px;font-family:var(--zk-font-mono)}
.zn-feature{display:grid;grid-template-columns:1.1fr .9fr;gap:0;border:1px solid var(--zk-border-subtle);border-radius:16px;overflow:hidden;background:#fff}
.zn-feature .body{padding:40px;display:flex;flex-direction:column;gap:14px;justify-content:center}
.zn-feature .art{background:var(--zk-yellow-500);border-left:1px solid var(--zk-ink);padding:40px;display:flex;flex-direction:column;justify-content:center;gap:14px;color:var(--zk-ink)}
.zn-feature .art b{font:600 clamp(44px,6vw,72px)/1 var(--zk-font-mono);letter-spacing:-.04em}
.zn-feature .art span{font-size:15px;font-weight:500}
.zn-meta{font:400 13px var(--zk-font-mono);color:var(--zk-text-tertiary);display:flex;gap:10px;flex-wrap:wrap}
.zn-tag{font:500 11px var(--zk-font-mono);letter-spacing:.08em;text-transform:uppercase;padding:4px 8px;border:1px solid var(--zk-border-strong);border-radius:4px;color:var(--zk-text-secondary)}
.zn-empty{padding:40px;border:1px dashed var(--zk-border-strong);border-radius:16px;text-align:center;color:var(--zk-text-secondary)}

/* forms */
.zn-form{display:grid;gap:16px}
.zn-field label{display:block;font-weight:600;font-size:14px;margin-bottom:6px}
.zn-field label small{font-weight:400;color:var(--zk-text-tertiary)}
.zn-field input,.zn-field textarea{width:100%;font:400 16px var(--zk-font-sans);padding:12px 14px;border:1px solid var(--zk-border-strong);border-radius:8px;background:#fff;color:var(--zk-text-primary)}
.zn-field input:focus,.zn-field textarea:focus{outline:2px solid var(--zk-ink);outline-offset:1px;border-color:var(--zk-ink)}
.zn-field .err{display:none;color:var(--zk-error-text);font-size:13px;margin-top:6px}
.zn-field.bad input,.zn-field.bad textarea{border-color:var(--zk-error-base)}
.zn-field.bad .err{display:block}
.zn-status{display:none;padding:16px 18px;border-radius:12px;border:1px solid var(--zk-border-strong);font-size:15px}
.zn-status.show{display:block}
.zn-status.ok{background:var(--zk-success-subtle);border-color:var(--zk-success-border);color:var(--zk-success-text)}
.zn-status.err{background:var(--zk-error-subtle);border-color:var(--zk-error-border);color:var(--zk-error-text)}
.zn-sched{border:1px solid var(--zk-border-subtle);border-radius:16px;overflow:hidden;background:#fff}
.zn-sched iframe{display:block;width:100%;height:760px;border:0;background:#fff}

/* footer */
.zn-foot{border-top:1px solid var(--zk-border-subtle);padding:64px 0 32px;background:#fff}
.zn-foot-grid{display:grid;grid-template-columns:1.4fr repeat(2,1fr);gap:40px}
.zn-foot h4{font:500 12px var(--zk-font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--zk-text-tertiary);margin-bottom:14px}
.zn-foot ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.zn-foot li a{font-size:14px;color:var(--zk-text-secondary)}
.zn-foot li a:hover{color:var(--zk-text-primary);text-decoration:underline}
.zn-foot .tag{margin-top:14px;font-size:14px;max-width:34ch}
.zn-legal{margin-top:48px;padding-top:20px;border-top:1px solid var(--zk-border-subtle);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--zk-text-tertiary)}

/* founder */
.zn-founder{display:grid;grid-template-columns:1.3fr .7fr;gap:56px;align-items:center}
.zn-founder img.photo{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:16px;border:1px solid var(--zk-border-subtle);display:block}
.zn-logos{display:flex;gap:28px 40px;flex-wrap:wrap;align-items:center;list-style:none;margin:40px 0 0;padding:0}
.zn-logos img{height:30px;width:auto;filter:grayscale(1);opacity:.75}

@media (max-width:1000px){
  .zn-links>a,.zn-dd,.zn-gh span{display:none}
  .zn-burger{display:inline-flex}
  .zn-grid.c4,.zn-steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .zn-step{border-bottom:1px solid var(--zk-border-subtle)}
  .zn-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .zn-stat{border-bottom:1px solid var(--zk-border-subtle)}
  .zn-foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:800px){
  .zn-wrap{padding:0 20px}
  .zn-sec{padding:72px 0}
  .zn-hero{padding:64px 0 48px}
  .zn-grid.c2,.zn-grid.c3,.zn-compare,.zn-feature,.zn-founder{grid-template-columns:1fr}
  .zn-demo-grid{grid-template-columns:1fr}
  .zn-rail{height:28px;border:0;border-top:1px solid var(--zk-ink);border-bottom:1px solid var(--zk-ink)}
  .zn-rail span{transform:translate(-50%,-50%)}
  .zn-feature .art{border-left:0;border-top:1px solid var(--zk-ink)}
  .zn-feature .body{padding:28px}
  .zn-founder img.photo{max-width:240px;order:-1}
  .zn-proof .sep{display:none}
  .zn-band{padding:56px 0}
}
@media (max-width:520px){
  .zn-grid.c4,.zn-steps,.zn-stats{grid-template-columns:1fr}
  .zn-step,.zn-stat{border-right:0}
  .zn-foot-grid{grid-template-columns:1fr}
  .zn-cta .zn-btn{width:100%}
  .zn-sched iframe{height:680px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@keyframes zn-rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.zn-rise{animation:zn-rise .6s cubic-bezier(.2,.7,.2,1) both}
.zn-rise.d1{animation-delay:.08s}.zn-rise.d2{animation-delay:.16s}.zn-rise.d3{animation-delay:.24s}
@media (max-width:520px){
  .zn-btn{white-space:normal;text-align:center}
  .zn-band .zn-btn{width:100%}
  .zn-proof{padding:12px 14px;gap:6px 12px;font-size:13px}
}
@media (max-width:520px){
  .zn-row{grid-template-columns:1fr;gap:8px}
  .zn-row .name{white-space:normal;flex-wrap:wrap}
  .zn-v{justify-self:start}
}

/* announcement pill */
.zn-announce{display:inline-flex;align-items:center;gap:10px;padding:5px 16px 5px 5px;border:1px solid var(--zk-border-strong);border-radius:9999px;background:#fff;color:var(--zk-ink);font:500 13px/1 var(--zk-font-sans);box-shadow:var(--zk-shadow-sm);transition:border-color .15s}
.zn-announce:hover{border-color:var(--zk-ink)}
.zn-announce .new{background:var(--zk-ink);color:var(--zk-yellow-500);padding:6px 10px;border-radius:9999px;font:600 11px/1 var(--zk-font-mono);letter-spacing:.1em;text-transform:uppercase}
.zn-announce .txt{display:inline-flex;align-items:center;gap:8px;flex-wrap:wrap;color:var(--zk-ink)}
.zn-announce svg{width:16px;height:16px;fill:currentColor}
.zn-announce b{font-weight:600}
.zn-announce .dim{color:var(--zk-ink)}

/* problem / solution */
.zn-ps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-items:stretch}
.zn-ps .zn-card{padding:36px;gap:18px}
.zn-ps .tagline{font:500 12px var(--zk-font-mono);letter-spacing:.12em;text-transform:uppercase}
.zn-ps .big{font:600 clamp(40px,5vw,56px)/1 var(--zk-font-mono);letter-spacing:-.04em;color:var(--zk-ink)}
.zn-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.zn-list li{position:relative;padding-left:26px;font-size:16px;line-height:1.5;color:var(--zk-text-secondary)}
.zn-list li::before{position:absolute;left:0;top:1px;font:600 14px var(--zk-font-mono)}
.zn-list.x li::before{content:"\00d7";color:var(--zk-error-text)}
.zn-list.ok li::before{content:"\2713";color:var(--zk-ink)}
.zn-card.hl .zn-list li{color:var(--zk-ink)}
.zn-card.hl .tagline{color:var(--zk-ink)}
.zn-card .tagline{color:var(--zk-text-tertiary)}
@media (max-width:800px){.zn-ps{grid-template-columns:1fr}.zn-ps .zn-card{padding:26px}}

@media (max-width:520px){.zn-nav-in{gap:10px}.zn-nav .zn-links{display:none}.zn-nav .zn-right>.zn-btn,.zn-nav .zn-gh{display:none}}

/* Ray PR: upstream break, downstream patch, verification evidence. */
.zn-pr-story{box-shadow:none}
.zn-pr-story a{font-weight:600;text-decoration:underline;text-underline-offset:3px}
.zn-pr-intro{padding:32px;border-bottom:1px solid var(--zk-border-subtle)}
.zn-pr-intro h3{font-size:24px;line-height:1.3;margin:0 0 12px;text-wrap:balance}
.zn-pr-intro p{max-width:72ch;color:var(--zk-text-secondary)}
.zn-pr-change{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:32px;padding:32px;border-bottom:1px solid var(--zk-border-subtle)}
.zn-pr-story h4{font-size:20px;line-height:1.35;margin:12px 0}
.zn-pr-explain p,.zn-pr-evidence p{font-size:14px;line-height:1.7;color:var(--zk-text-secondary);margin:12px 0 0}
.zn-pr-explain code{overflow-wrap:anywhere}
.zn-pr-diff{min-width:0;align-self:center;background:var(--zk-bg-subtle);border:1px solid var(--zk-border-subtle);border-radius:8px;overflow:hidden}
.zn-pr-file{padding:12px 16px;font:500 12px/1.5 var(--zk-font-mono);border-bottom:1px solid var(--zk-border-subtle)}
.zn-pr-diff pre{margin:0;padding:16px 0;overflow-x:auto;font:12px/1.9 var(--zk-font-mono)}
.zn-pr-diff pre span{display:block;padding:0 16px;min-width:max-content}
.zn-pr-removed{color:#842424;background:#fff0ef}
.zn-pr-added{color:#175633;background:#edf8ef}
.zn-pr-diff p{font-size:12px;line-height:1.6;margin:0;padding:12px 16px;border-top:1px solid var(--zk-border-subtle);color:var(--zk-text-secondary)}
.zn-pr-evidence{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:32px;padding:32px}
.zn-pr-evidence h4{margin-top:0}
.zn-pr-matrix{min-width:0;overflow-x:auto}
.zn-pr-matrix table{width:100%;border-collapse:collapse;font-size:12px;text-align:left}
.zn-pr-matrix caption{text-align:left;font-weight:600;margin-bottom:12px}
.zn-pr-matrix th,.zn-pr-matrix td{padding:12px 8px;border-bottom:1px solid var(--zk-border-subtle)}
.zn-pr-matrix td{color:#175633}
.zn-pr-bottom{display:flex;flex-wrap:wrap;gap:12px 24px;padding:20px 32px;border-top:1px solid var(--zk-border-subtle);font-size:12px}
.zn-pr-bottom>span{margin-right:auto;color:var(--zk-text-secondary)}
@media(max-width:800px){.zn-pr-change,.zn-pr-evidence{grid-template-columns:1fr;gap:24px;padding:24px}.zn-pr-intro{padding:24px}.zn-pr-bottom{padding:20px 24px}}