/* Truvian Shield landing - visual-first page. Same dark theme as the app.
   Content width: 980px plus three-quarters of the remaining viewport, so only
   a small gap is left at each side on any screen (matches style.css). */
:root{--wrap:min(100%, calc(980px + 0.75 * (100vw - 980px)));--bg:#0a0a0a;--card:#161616;--deep:#0f0f0f;--border:#262626;--text:#e8e8e8;--muted:#9a9a9a;--gold:#caa53d;--blue:#7db4ff;--safe:#4ade80;--warn:#f5b342;--block:#f87171;--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--mono);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
code{font-family:inherit}
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 1.25rem; }
.skip{position:absolute;left:-999px}
.skip:focus{left:12px;top:12px;background:var(--gold);color:#000;padding:8px 12px;z-index:10}

/* header */
/* Header only: half the side margin the rest of the page uses, so the nav sits
   closer to the edges. Body content keeps --wrap (0.75); 0.875 here leaves
   exactly half the gap. */
.top .wrap{max-width:min(100%, calc(980px + 0.875 * (100vw - 980px)))}
.top{position:sticky;top:0;z-index:5;background:rgba(10,10,10,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.top-inner{display:flex;align-items:center;gap:20px;height:56px}
.brand{display:flex;align-items:center;gap:8px;color:var(--text);font-weight:700;letter-spacing:.02em}
.brand:hover{text-decoration:none}
.brand-logo{display:block;height:40px;width:auto}
@media(max-width:480px){.brand-logo{height:32px}}
.foot-brand{display:inline-block;line-height:0;margin:0 0 14px}
.foot-logo{display:block;height:38px;width:auto;opacity:.9}
.topnav{display:none;gap:18px;margin-left:auto;font-size:13px}
.topnav a{color:var(--muted)}
.topnav a:hover{color:var(--text);text-decoration:none}
@media(min-width:860px){.topnav{display:flex}}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border:1px solid var(--border);border-radius:8px;color:var(--text);font-family:inherit;font-size:14px;font-weight:600;background:var(--card);white-space:nowrap;line-height:1.3}
.btn:hover{text-decoration:none;border-color:#3a3a3a}
.btn-primary{background:var(--gold);border-color:var(--gold);color:#0a0a0a}
.btn-primary:hover{background:#d9b44a;border-color:#d9b44a}
.btn-sm{padding:7px 12px;font-size:13px}

/* sections */
section{padding:56px 0}
@media(min-width:860px){section{padding:76px 0}}
.band-alt{background:#0d0d0d;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.label{display:inline-block;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin-bottom:8px}
h1{font-size:clamp(32px,5.2vw,54px);line-height:1.04;margin:0 0 16px;letter-spacing:-.02em}
h2{font-size:clamp(22px,3vw,32px);line-height:1.15;margin:0 0 8px;letter-spacing:-.01em}
.sub{color:var(--muted);margin:0 0 26px;max-width:62ch;font-size:15px}
.lede{font-size:17px;color:var(--muted);margin:0 0 24px;max-width:46ch}
.cta-row{display:flex;flex-wrap:wrap;gap:12px}

/* hero */
.hero{padding-top:44px}
.hero-grid{display:grid;gap:28px;align-items:center}
@media(min-width:860px){.hero-grid{grid-template-columns:1.05fr 1fr;gap:48px}.hero{padding-top:64px}}
.bignums{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:40px}
@media(min-width:760px){.bignums{grid-template-columns:repeat(4,1fr)}}
.bignum{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px 18px}
.bignum b{display:block;font-size:30px;line-height:1;color:var(--gold);letter-spacing:-.02em}
.bignum span{display:block;margin-top:8px;font-size:12px;color:var(--muted)}
.stats{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;margin-top:14px;padding:10px 14px;border:1px solid var(--border);border-radius:10px;background:var(--deep);font-size:12px;color:var(--muted)}
.stats[hidden]{display:none}
.stats .dot{width:8px;height:8px;border-radius:50%;background:var(--safe);box-shadow:0 0 0 3px rgba(74,222,128,.15)}
.stats b{color:var(--text);font-weight:600}
.stats .src{margin-left:auto}

/* figures */
.fig{margin:0;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px}
.fig svg{display:block;width:100%;height:auto}
.fig figcaption{margin-top:12px;font-size:12px;color:var(--muted)}
.fig svg.d-mob{max-width:420px;margin:0 auto}
.fig svg.d-desk{display:none}
@media(min-width:820px){.fig svg.d-desk{display:block}.fig svg.d-mob{display:none}}
.pair{display:inline-flex;align-items:center;gap:6px;flex-wrap:wrap}
.hero-fig{padding:14px}
.hero-fig svg{max-width:380px;margin:0 auto}
@media(max-width:480px){.wrap{padding:0 14px}.fig{padding:10px}.hero-fig{padding:8px}}
.legend{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:12px;color:var(--muted);margin-top:12px}
.legend i{display:inline-block;width:26px;border-top:2px solid var(--gold);vertical-align:middle;margin-right:6px}
.legend i.dash{border-top-style:dashed;border-color:var(--blue)}

/* chips */
.chip{display:inline-flex;align-items:center;gap:6px;padding:3px 9px;border-radius:999px;font-size:12px;line-height:1.4;border:1px solid var(--border);background:#1c1c1c;color:var(--text);white-space:nowrap}
.chip-gold{color:var(--gold);border-color:rgba(202,165,61,.45);background:rgba(202,165,61,.08)}
.chip-blue{color:var(--blue);border-color:rgba(125,180,255,.4);background:rgba(125,180,255,.08)}
.chip-pass{color:var(--safe);border-color:rgba(74,222,128,.4);background:rgba(74,222,128,.08)}
.chip-warn{color:var(--warn);border-color:rgba(245,179,66,.4);background:rgba(245,179,66,.08)}
.chip-fail{color:var(--block);border-color:rgba(248,113,113,.4);background:rgba(248,113,113,.08)}
.chip-muted{color:var(--muted)}
.row{display:flex;flex-wrap:wrap;gap:6px;align-items:center}

/* checks */
.checks{display:grid;gap:14px}
@media(min-width:720px){.checks{grid-template-columns:1fr 1fr}}
.check{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px;display:flex;flex-direction:column;gap:12px}
.check-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.glyph{width:42px;height:42px;flex:none;border-radius:10px;background:#1d1d1d;border:1px solid var(--border);display:grid;place-items:center}
.glyph svg{width:28px;height:28px}
.check h3{margin:0;font-size:16px;letter-spacing:.06em}
.check .q{margin:0;font-size:14px}
.check .foot{display:flex;flex-wrap:wrap;gap:6px 10px;align-items:center;font-size:12px;color:var(--muted);margin-top:auto;padding-top:10px;border-top:1px dashed var(--border)}

/* scoring */
.score-grid{display:grid;gap:14px;align-items:start}
@media(min-width:900px){.score-grid{grid-template-columns:1.7fr 1fr}}
.side{display:grid;gap:12px;align-content:start}
.panel{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px}
.panel h3{margin:0 0 10px;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.pens{display:flex;flex-wrap:wrap;gap:8px}
.pen{display:inline-flex;align-items:baseline;gap:8px;padding:8px 12px;border-radius:10px;border:1px solid var(--border);background:#1c1c1c;font-size:12px;color:var(--muted)}
.pen b{font-size:20px;line-height:1}
.pen.warn b{color:var(--warn)}.pen.fail b{color:var(--block)}.pen.err b{color:var(--blue)}
.callout{border:1px solid var(--border);border-left:3px solid var(--warn);border-radius:10px;padding:10px 12px;font-size:13px;background:#1c1c1c}
.callout.block{border-left-color:var(--block)}
.callout+.callout{margin-top:8px}

/* agents */
.agents-grid{display:grid;gap:14px}
.agents-grid>*{min-width:0}
@media(min-width:860px){.agents-grid{grid-template-columns:1.2fr 1fr}}
.code{max-width:100%;background:var(--deep);border:1px solid var(--border);border-radius:12px;padding:16px;overflow-x:auto;font-size:13px;line-height:1.6}
.code pre{margin:0}
.code .c{color:var(--muted)}.code .s{color:var(--safe)}.code .k{color:var(--gold)}
.endpoints{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.endpoints li{display:flex;flex-direction:column;gap:2px;font-size:13px;padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:var(--card)}
.endpoints code{color:var(--gold)}
.endpoints span{color:var(--muted);font-size:12px}
.endpoints .m{display:inline-block;min-width:44px;color:var(--blue)}

/* faq */
.faq{display:grid;gap:12px}
@media(min-width:720px){.faq{grid-template-columns:1fr 1fr}}
.faq article{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px}
.faq h3{margin:0 0 6px;font-size:14px}
.faq p{margin:0;font-size:13px;color:var(--muted)}

/* verify layout */
.verify-grid{display:grid;gap:14px}
@media(min-width:860px){.verify-grid{grid-template-columns:1fr 1fr;align-items:center}}

/* final / footer */
.final{text-align:center}
.final .cta-row{justify-content:center}
/* site footer: brand column + three link columns */
.site-foot{border-top:1px solid var(--border);padding:48px 0 28px;font-size:13px;color:var(--muted)}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px 40px}
.foot-desc{margin:0 0 20px;max-width:40ch;line-height:1.65}
.foot-social{display:flex;gap:16px}
.foot-social a{color:var(--muted);line-height:0}
.foot-social a:hover{color:var(--text)}
.foot-social svg{width:22px;height:22px;fill:currentColor}
.foot-col h4{margin:0 0 18px;font-size:11px;font-weight:600;letter-spacing:.24em;text-transform:uppercase;color:#6f6f6f}
.foot-col ul{list-style:none;margin:0;padding:0}
.foot-col li{margin:0 0 12px}
.foot-col a{color:var(--muted)}
.foot-col a:hover{color:var(--text);text-decoration:none}
@media(max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}.foot-brand-col{grid-column:1/-1}}
@media(max-width:480px){.foot-grid{grid-template-columns:1fr}}

/* ---------- recent checks feed ---------- */
.recent-list{display:flex;flex-direction:column;gap:8px;margin-top:20px}
.recent-row{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 14px;padding:12px 16px;background:var(--card);border:1px solid var(--border);border-radius:10px;color:var(--muted);font-size:13px;transition:border-color .25s ease,transform .25s ease}
.recent-row:hover{text-decoration:none;border-color:#3a3a3a;transform:translateX(3px)}
.recent-verdict{font-weight:700;letter-spacing:.06em;min-width:8ch}
.recent-verdict.safe{color:var(--safe)}
.recent-verdict.caution{color:var(--warn)}
.recent-verdict.block{color:var(--block)}
.recent-score{color:var(--text);font-variant-numeric:tabular-nums}
.recent-signals{color:var(--gold)}
.recent-when{margin-left:auto;color:#6f6f6f}

/* ---------- why truvian ---------- */
.why-grid{display:grid;grid-template-columns:1fr;gap:16px;margin-top:24px}
@media(min-width:820px){.why-grid{grid-template-columns:repeat(3,1fr)}}
.why-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;transition:border-color .3s ease,transform .3s ease}
.why-card:hover{border-color:#3a3a3a;transform:translateY(-3px)}
.why-step{display:inline-block;font-size:11px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);margin-bottom:10px}
.why-card h3{margin:0 0 8px;font-size:16px}
.why-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
.why-note{margin:20px 0 0;color:#6f6f6f;font-size:13px}

/* ---------- hero diagram: continuous motion ----------
   One 12 s loop = two 6 s passes. Each pass: a tx packet drops from the agent
   into the shield (0-1 s), the four checks light up in turn while the shield
   glows (1-3 s), then a verdict packet runs down a branch (3-4.2 s) and the
   destination card flashes. Pass 1 ends in SIGN, pass 2 in HOLD. */
.hero-svg .flow{stroke-dasharray:5 7;animation:hero-dash 1s linear infinite}
@keyframes hero-dash{to{stroke-dashoffset:-12}}

.pkt{offset-rotate:0deg;opacity:0}
.hero-svg .pkt-tx{offset-path:path("M200 64 L200 102");animation:hero-pkt-tx 6s linear infinite}
.hero-svg .pkt-sign{offset-path:path("M200 240 V262 H120 V284");animation:hero-pkt-sign 12s linear infinite}
.hero-svg .pkt-hold{offset-path:path("M200 240 V262 H280 V284");animation:hero-pkt-hold 12s linear infinite}
@keyframes hero-pkt-tx{0%{offset-distance:0%;opacity:0}3%{opacity:1}16%{offset-distance:100%;opacity:1}18%{offset-distance:100%;opacity:0}19%{offset-distance:0%;opacity:0}100%{offset-distance:0%;opacity:0}}
@keyframes hero-pkt-sign{0%,25%{offset-distance:0%;opacity:0}26%{opacity:1}35%{offset-distance:100%;opacity:1}36%,100%{offset-distance:100%;opacity:0}}
@keyframes hero-pkt-hold{0%,75%{offset-distance:0%;opacity:0}76%{opacity:1}85%{offset-distance:100%;opacity:1}86%,100%{offset-distance:100%;opacity:0}}

.hero-svg .dot{transform-box:fill-box;transform-origin:center;animation:hero-dot 6s ease-in-out infinite;animation-delay:calc(var(--i) * .4s)}
@keyframes hero-dot{0%,17%{transform:scale(1);fill:#caa53d}21%{transform:scale(1.75);fill:#fff1b8}28%,100%{transform:scale(1);fill:#caa53d}}

.hero-svg .shield-glow{opacity:0;filter:blur(5px);animation:hero-glow 6s ease-in-out infinite}
@keyframes hero-glow{0%,14%{opacity:0}26%{opacity:.6}40%{opacity:.3}52%,100%{opacity:0}}
.hero-svg .shield-body{animation:hero-shield 6s ease-in-out infinite}
@keyframes hero-shield{0%,14%{stroke:#caa53d}26%{stroke:#ffe08a}52%,100%{stroke:#caa53d}}

.hero-svg .sign-box{animation:hero-sign-flash 12s ease-out infinite}
@keyframes hero-sign-flash{0%,35%{fill:rgba(74,222,128,.08)}37%{fill:rgba(74,222,128,.38)}48%,100%{fill:rgba(74,222,128,.08)}}
.hero-svg .sign-check{stroke-dasharray:30;stroke-dashoffset:0;animation:hero-sign-check 12s linear infinite}
@keyframes hero-sign-check{0%,34.9%{stroke-dashoffset:0}35%{stroke-dashoffset:30}39%,100%{stroke-dashoffset:0}}

.hero-svg .hold-box{animation:hero-hold-flash 12s ease-out infinite}
@keyframes hero-hold-flash{0%,85%{fill:rgba(248,113,113,.08)}87%{fill:rgba(248,113,113,.38)}98%,100%{fill:rgba(248,113,113,.08)}}
.hero-svg .hand{transform-box:fill-box;transform-origin:center;animation:hero-hand 12s ease-in-out infinite}
@keyframes hero-hand{0%,85%{transform:rotate(0)}86.5%{transform:rotate(-10deg)}88%{transform:rotate(10deg)}89.5%{transform:rotate(-7deg)}91%,100%{transform:rotate(0)}}

/* ---------- motion system (shared by every animated diagram) ----------
   Animated diagrams carry class "motion"; moving packets carry class "pkt".
   Reduced-motion users get the static diagram; browsers without CSS motion
   paths hide the packets and keep the rest. */
@supports not (offset-path:path("M0 0 L1 1")){.pkt{display:none}}
@media(prefers-reduced-motion:reduce){
  .motion,.motion *{animation:none!important}
  .pkt{display:none}
}

/* ---------- scroll reveal (classes added by landing.js; no JS = no hiding) ---------- */
.rv{opacity:0;transform:translateY(22px);will-change:opacity,transform}
.rv.in{opacity:1;transform:none;transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1);transition-delay:var(--rv-d,0ms)}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none}.rv.in{transition:none}}

/* ---------- hover lift on cards ---------- */
.check,.faq > *,.bignum{transition:transform .35s ease,border-color .35s ease,box-shadow .35s ease}
.check:hover,.faq > *:hover,.bignum:hover{transform:translateY(-3px);border-color:#3a3a3a;box-shadow:0 12px 30px rgba(0,0,0,.35)}