/* ==========================================================================
   TapEvent — tapevent.in
   Single design system shared by every page (home, contact, 404).
   Near-black canvas, one orange accent, IBM Plex Sans/Mono, line-art SVG.
   Nav + footer live here ONLY, so the pages can never drift apart.
   ========================================================================== */

:root{
  --gray-950:#0b0b0c; --gray-900:#141416; --gray-800:#1e1e21; --gray-700:#2c2c30;
  --gray-500:#6b6b72; --gray-400:#8f8f96; --gray-300:#c3c3c8; --gray-200:#e2e2e5;
  --gray-100:#f4f4f5; --gray-50:#fafafa; --white:#fff;
  --orange-600:#d93f00; --orange-500:#ff4d00; --orange-400:#ff6a2b;
  --accent:var(--orange-500);
  --font-sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,"SF Mono",Menlo,monospace;
  --ease:cubic-bezier(.2,0,0,1);
  --container:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--gray-950);color:var(--gray-100);font-family:var(--font-sans);font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased;font-feature-settings:"tnum" 1,"lnum" 1}
img,svg{max-width:100%;height:auto}
a{color:inherit}
::selection{background:var(--orange-500);color:var(--white)}
.container{max-width:var(--container);margin:0 auto;padding:0 clamp(20px,5vw,44px)}
h1{font-weight:600;letter-spacing:-.03em;line-height:1.04;font-size:clamp(38px,5.4vw,60px);text-wrap:balance}
h2{font-weight:600;letter-spacing:-.025em;line-height:1.1;font-size:clamp(28px,3.6vw,42px);text-wrap:balance}
.kicker{font-family:var(--font-mono);font-weight:500;font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.mono{font-family:var(--font-mono)}
.btn{display:inline-block;text-decoration:none;font-weight:600;font-size:16px;padding:15px 28px;border-radius:10px;transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--accent);color:var(--white)}
.btn-primary:hover{box-shadow:0 10px 30px rgba(255,77,0,.35)}
.btn-ghost{border:1px solid var(--gray-700);color:var(--gray-100)}
.btn-ghost:hover{border-color:var(--gray-500)}
/* shared text helpers (contact + 404) */
.accent{color:var(--accent)}
.sub{margin-top:clamp(16px,2.4vw,28px);font-weight:400;line-height:1.5;letter-spacing:-.01em;font-size:clamp(17px,1.7vw,20px);color:var(--gray-400);max-width:46ch}
.muted{color:var(--gray-400)}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:clamp(26px,3.4vw,40px)}
/* nav */
.nav{position:sticky;top:0;z-index:60;background:rgba(11,11,12,.82);-webkit-backdrop-filter:saturate(160%) blur(18px);backdrop-filter:saturate(160%) blur(18px);border-bottom:1px solid var(--gray-800)}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:inline-flex;align-items:center;gap:.5em;text-decoration:none;font-weight:700;letter-spacing:-.03em;font-size:19px;color:var(--gray-100)}
.brand-mark{width:24px;height:24px;flex:none}
.nav-links{display:flex;align-items:center;gap:clamp(16px,2.6vw,32px);list-style:none}
.nav-links a{text-decoration:none;color:var(--gray-300);font-size:15px;font-weight:500;transition:color .25s var(--ease)}
.nav-links a:hover{color:var(--white)}
.nav-cta{background:var(--accent);color:var(--white)!important;font-weight:600;font-size:14px;padding:10px 20px;border-radius:8px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--gray-100);margin:5px 0;transition:all .3s var(--ease)}
/* hero */
.hero{position:relative;overflow:hidden}
.hero .container{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;padding-top:clamp(56px,8vw,96px);padding-bottom:clamp(48px,7vw,80px);align-items:center}
.hero-blob{position:absolute;border-radius:50%;pointer-events:none}
.hero-blob-1{top:-20%;right:-8%;width:640px;height:640px;background:radial-gradient(circle,rgba(255,77,0,.16),transparent 65%);filter:blur(40px);animation:te-drift 14s ease-in-out infinite}
.hero-blob-2{bottom:-30%;left:-10%;width:520px;height:520px;background:radial-gradient(circle,rgba(255,106,43,.08),transparent 65%);filter:blur(50px);animation:te-drift2 18s ease-in-out infinite}
.hero-copy{position:relative}
.badge{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;letter-spacing:.24em;color:var(--accent);border:1px solid rgba(255,77,0,.4);border-radius:999px;padding:6px 14px;margin-bottom:26px}
.badge i{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.hero-sub{margin:22px 0 34px;font-size:clamp(17px,1.6vw,19px);line-height:1.55;color:var(--gray-400);max-width:46ch}
.hero-ctas{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-note{font-size:13px;color:var(--gray-500)}
.hero-note strong{color:var(--gray-300)}
/* console */
.consolewrap{position:relative}
.ring{position:absolute;top:50%;left:50%;width:420px;height:420px;margin:-210px 0 0 -210px;border:1.5px solid rgba(255,77,0,.5);border-radius:50%;animation:te-ripple 3.6s cubic-bezier(.2,0,.4,1) infinite;pointer-events:none}
.ring:nth-child(2){animation-delay:1.2s}
.ring:nth-child(3){animation-delay:2.4s}
.console{position:relative;background:rgba(20,20,22,.92);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid var(--gray-700);border-radius:14px;overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.5)}
.console-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--gray-800);font-family:var(--font-mono);font-size:12px}
.console-head .loc{color:var(--gray-400)}
.live{display:flex;align-items:center;gap:6px;color:var(--accent)}
.live i{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:te-pulse 1.6s ease-in-out infinite}
.tap-row{display:flex;align-items:center;gap:14px;padding:12px 18px;border-bottom:1px solid var(--gray-800)}
.tap-row .t{font-family:var(--font-mono);font-size:12px;color:var(--gray-500);width:64px;flex:none}
.tap-row .av{width:30px;height:30px;border-radius:50%;background:var(--gray-700);display:grid;place-items:center;font-size:12px;font-weight:600;flex:none}
.tap-row .n{flex:1;font-size:14px;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tap-row .n small{color:var(--gray-500);font-size:12px}
.tap-row .st{font-family:var(--font-mono);font-size:11px;border-radius:5px;padding:3px 8px;flex:none}
.st-in{color:#ff4d00;border:1px solid #ff4d00}
.st-dup{color:#f2b035;border:1px solid #f2b035}
.console-foot{display:flex;justify-content:space-between;gap:12px;padding:14px 18px;background:var(--gray-950);font-family:var(--font-mono);font-size:12px;color:var(--gray-400)}
.console-foot strong{color:var(--gray-100)}
.console-foot .dup{color:var(--orange-400)}
/* stats */
.stats{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--gray-800);max-width:var(--container);margin:0 auto}
.stat{padding:clamp(24px,3vw,36px) clamp(20px,4vw,48px)}
.stat+.stat{border-left:1px solid var(--gray-800)}
.stat b{display:block;font-family:var(--font-mono);font-weight:400;font-size:clamp(30px,3.4vw,44px);color:var(--accent)}
.stat span{display:block;font-size:14px;color:var(--gray-400);margin-top:6px}
/* problem / solution */
.split{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--gray-800);max-width:var(--container);margin:0 auto}
.split>div{padding:clamp(44px,6vw,72px) clamp(20px,4vw,48px)}
.split .today{border-right:1px solid var(--gray-800)}
.split .today h2{color:var(--gray-400)}
.split .today .kicker{color:var(--gray-500)}
.split p{margin-top:18px;font-size:16px;line-height:1.6;color:var(--gray-500)}
.split .with{background:var(--gray-900)}
.split .with p{color:var(--gray-400)}
.illus{display:block;margin-bottom:28px}
/* sections */
.section{padding:clamp(52px,7vw,80px) 0}
.section-head{margin-bottom:44px}
.light{background:var(--gray-50);color:var(--gray-950)}
.light .kicker{color:var(--orange-600)}
/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step{background:var(--white);border:1px solid var(--gray-200);border-radius:12px;padding:30px;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.step:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(11,11,12,.1)}
.step svg{display:block;margin-bottom:20px}
.step-n{font-family:var(--font-mono);font-size:12px;color:var(--orange-600);margin-bottom:14px}
.step h3{font-size:21px;font-weight:600;letter-spacing:-.02em;margin-bottom:10px}
.step p{font-size:15px;line-height:1.6;color:var(--gray-500)}
/* ticker */
.ticker{border-top:1px solid var(--gray-800);border-bottom:1px solid var(--gray-800);background:var(--accent);overflow:hidden}
.ticker-track{display:flex;width:max-content;white-space:nowrap;font-family:var(--font-mono);font-size:14px;text-transform:uppercase;color:var(--white);padding:13px 0;animation:te-marquee 26s linear infinite}
.ticker-track span{padding:0 28px;border-right:1px solid rgba(255,255,255,.35)}
/* features */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--gray-800);border:1px solid var(--gray-800);border-radius:12px;overflow:hidden}
.feature{background:var(--gray-950);padding:30px;transition:background .35s var(--ease)}
.feature:hover{background:var(--gray-900)}
.feature .glyph{font-family:var(--font-mono);font-size:16px;color:var(--accent);margin-bottom:14px}
.feature h3{font-size:18px;font-weight:600;margin-bottom:8px}
.feature p{font-size:14px;line-height:1.6;color:var(--gray-400)}
/* paperless */
.paperless{background:var(--gray-900);border-top:1px solid var(--gray-800)}
.paperless .container{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding-top:clamp(44px,6vw,72px);padding-bottom:clamp(44px,6vw,72px)}
.paperless p{margin:16px 0 24px;font-size:16px;line-height:1.6;color:var(--gray-400)}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--gray-700);border-radius:999px;padding:9px 16px;background:var(--gray-950);font-size:13.5px}
.chip b{font-family:var(--font-mono);font-weight:400;color:var(--accent)}
.paperless-art{display:grid;place-items:center}
/* use cases */
.usecases{border-top:1px solid var(--gray-800)}
.usecases-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:36px;gap:16px}
.usecases-head .tag{font-family:var(--font-mono);font-size:13px;color:var(--gray-400);flex:none}
.usecase{display:grid;grid-template-columns:60px 280px 1fr;gap:24px;align-items:baseline;padding:22px 0;border-top:1px solid var(--gray-700);transition:background .3s var(--ease)}
.usecase:hover{background:rgba(255,255,255,.02)}
.usecase .num{font-family:var(--font-mono);font-size:13px;color:var(--accent)}
.usecase .name{font-size:21px;font-weight:600;letter-spacing:-.02em}
.usecase .desc{font-size:15px;line-height:1.55;color:var(--gray-400)}
/* privacy */
.privacy{text-align:center;padding-bottom:clamp(60px,8vw,88px)}
.privacy .ripplewrap{position:relative;width:180px;height:180px;margin:0 auto 8px}
.privacy .r{position:absolute;inset:0;border:1.5px solid rgba(217,63,0,.45);border-radius:50%;animation:te-ripple 3s cubic-bezier(.2,0,.4,1) infinite}
.privacy .r:nth-child(2){animation-delay:1s}
.privacy .r:nth-child(3){animation-delay:2s}
.privacy .shield{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}
.privacy h2{max-width:20ch;margin:0 auto 18px}
.privacy p{margin:0 auto;font-size:17px;line-height:1.6;color:var(--gray-500);max-width:58ch}
/* cta */
.cta{position:relative;overflow:hidden;background:var(--accent);color:var(--white);border-radius:16px;padding:clamp(36px,5vw,56px);display:flex;align-items:center;justify-content:space-between;gap:40px;margin:clamp(40px,6vw,64px) 0}
.cta-sheen{position:absolute;top:-40%;left:0;width:180px;height:180%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent);animation:te-sheen 5.5s ease-in-out infinite;pointer-events:none}
.cta h2{font-size:clamp(28px,3.2vw,36px);position:relative}
.cta p{font-size:16px;margin-top:10px;opacity:.85;max-width:52ch;line-height:1.55;position:relative}
.cta .btn{background:var(--gray-950);color:var(--white);flex:none;position:relative}
/* contact page */
.contact-card{margin-top:clamp(32px,4vw,48px);border:1px solid var(--gray-800);border-radius:18px;background:var(--gray-900);padding:clamp(26px,3.4vw,40px);display:grid;grid-template-columns:max-content 1fr;gap:16px 32px;align-items:baseline;max-width:560px}
.contact-card dt{font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--gray-500)}
.contact-card dd{font-size:18px}
.contact-card a{color:var(--gray-100);text-decoration:none;border-bottom:1px solid var(--gray-700)}
.contact-card a:hover{border-color:var(--accent)}
@media (max-width:520px){.contact-card{grid-template-columns:1fr;gap:4px}.contact-card dd{margin-bottom:14px}}
/* 404 */
.error-hero{min-height:70vh;display:flex;align-items:center}
/* footer */
.footer{border-top:1px solid var(--gray-800);padding:clamp(40px,6vw,56px) 0 40px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer .about{font-size:14px;line-height:1.6;color:var(--gray-500);max-width:32ch;margin-top:14px}
.footer h4{font-family:var(--font-mono);font-weight:500;font-size:11px;letter-spacing:.2em;color:var(--gray-500);margin-bottom:14px;text-transform:uppercase}
.footer ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer ul a{text-decoration:none;font-size:14px;color:var(--gray-300);transition:color .25s var(--ease)}
.footer ul a:hover{color:var(--white)}
.footer-base{margin-top:44px;padding-top:22px;border-top:1px solid var(--gray-800);font-size:13px;color:var(--gray-500)}
.footer-base a{color:var(--gray-400)}
/* animations */
@keyframes te-ripple{0%{transform:scale(.3);opacity:.9}100%{transform:scale(1.7);opacity:0}}
@keyframes te-marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@keyframes te-pulse{0%,100%{opacity:1}50%{opacity:.3}}
@keyframes te-drift{0%{transform:translate(-12%,-8%) scale(1)}50%{transform:translate(10%,6%) scale(1.25)}100%{transform:translate(-12%,-8%) scale(1)}}
@keyframes te-drift2{0%{transform:translate(8%,10%) scale(1.15)}50%{transform:translate(-10%,-4%) scale(.95)}100%{transform:translate(8%,10%) scale(1.15)}}
@keyframes te-sheen{0%{transform:translateX(-60%) rotate(12deg)}100%{transform:translateX(160%) rotate(12deg)}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}
/* responsive */
@media (max-width:960px){
  .hero .container{grid-template-columns:1fr;gap:44px}
  .split{grid-template-columns:1fr}
  .split .today{border-right:0;border-bottom:1px solid var(--gray-800)}
  .steps,.features{grid-template-columns:1fr 1fr}
  .paperless .container{grid-template-columns:1fr}
  .usecase{grid-template-columns:48px 1fr}
  .usecase .desc{grid-column:2}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta{flex-direction:column;align-items:flex-start}
  .nav-links{position:fixed;inset:64px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;background:var(--gray-950);border-bottom:1px solid var(--gray-800);padding:8px 0;display:none}
  .nav-links.open{display:flex}
  .nav-links li{padding:0 24px}
  .nav-links a{display:block;padding:14px 0;font-size:16px}
  .nav-links .nav-cta{margin:10px 0 14px;text-align:center}
  .nav-toggle{display:block}
}
@media (max-width:768px){
  /* touch: footer links need a >=44px tap target */
  .footer ul{gap:4px}
  .footer ul a{display:inline-flex;align-items:center;min-height:44px}
  .footer .brand{min-height:44px}
  .footer-base{line-height:1.4}
  .footer-base a{display:inline-block;padding:14px 0}
}
@media (max-width:640px){
  .stats{grid-template-columns:1fr}
  .stat+.stat{border-left:0;border-top:1px solid var(--gray-800)}
  .steps,.features{grid-template-columns:1fr}
  .tap-row .t{display:none}
  .hero-ctas .btn{width:100%;text-align:center}
}