/* ===================================================================
   ATHC Cloud Data — visual system
   Concept: a technical "spec sheet" for protecting workshop data.
   Blueprint grid, corner-tick frames, ink-stamp badge, dashed
   measurement lines — vocabulary borrowed from workshop paperwork
   and equipment status lights, not generic SaaS chrome.
=================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@600;700;800&family=IBM+Plex+Sans:wght@400;500;600;700&display=swap');

:root{
  --bg:#0c1012;
  --panel:#141a1c;
  --panel-alt:#191f22;
  --line:#262e31;
  --line-strong:#3c474b;
  --text:#eef2ef;
  --text-dim:#93a29d;
  --text-faint:#5e6c68;

  --accent:#ff6a2b;
  --accent-soft:#ff6a2b1a;
  --accent-dim:#4a2712;

  --ok:#33d19a;
  --ok-soft:#33d19a1a;
  --ok-dim:#123a2e;

  --display: 'Barlow Condensed', Arial, sans-serif;
  --body: 'IBM Plex Sans', Arial, sans-serif;

  --mx:50%;
  --my:30%;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--body);
  background:var(--bg);
  color:var(--text);
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:64px 64px;
  background-position:-1px -1px;
}
@media(prefers-reduced-motion:no-preference){
  .pulse{animation:pulse 2.4s ease-in-out infinite}
}
@keyframes pulse{
  0%,100%{opacity:1}
  50%{opacity:.35}
}

a{color:inherit}
ul{margin:0}

/* ---------- shared: blueprint corner frame ---------- */
.frame{position:relative}
.frame::before,.frame::after,
.frame .tick-br,.frame .tick-bl{
  content:"";position:absolute;width:14px;height:14px;
  border-color:var(--line-strong);border-style:solid;border-width:0;
}
.frame::before{top:-1px;left:-1px;border-top-width:2px;border-left-width:2px}
.frame::after{top:-1px;right:-1px;border-top-width:2px;border-right-width:2px}
.frame .tick-br{bottom:-1px;right:-1px;border-bottom-width:2px;border-right-width:2px}
.frame .tick-bl{bottom:-1px;left:-1px;border-bottom-width:2px;border-left-width:2px}
.frame.frame-accent::before,.frame.frame-accent::after,
.frame.frame-accent .tick-br,.frame.frame-accent .tick-bl{border-color:var(--accent)}

/* ---------- nav ---------- */
.nav{
  height:76px;display:flex;align-items:center;justify-content:space-between;
  padding:0 7%;border-bottom:1px solid var(--line);
  background:#0c1012ee;backdrop-filter:blur(6px);
  position:sticky;top:0;z-index:20;
  transition:height .25s ease, box-shadow .25s ease;
}
.nav.scrolled{height:60px;box-shadow:0 10px 30px #00000055}
.brand{display:flex;align-items:center;gap:12px}
.brand .logo{
  width:40px;height:40px;display:grid;place-items:center;
  background:var(--panel);border:2px solid var(--accent);
  font-family:var(--display);font-weight:800;font-size:20px;color:var(--accent);
}
.brand .brandtext{display:flex;flex-direction:column;line-height:1.15}
.brand .brandtext b{font-family:var(--display);font-weight:700;font-size:19px;letter-spacing:.2px}
.brand .brandtext span{font-size:11px;color:var(--text-dim)}
.navlinks{display:flex;gap:28px;font-size:14px;color:var(--text-dim)}
.navlinks a{text-decoration:none}
.navlinks a:hover{color:var(--text)}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:88px 7% 96px;border-bottom:1px solid var(--line);
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;z-index:0;
  background:radial-gradient(480px circle at var(--mx) var(--my), #ff6a2b14, transparent 60%);
  transition:background .08s linear;
}
.hero>*{position:relative;z-index:1}
.hero-spec{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--text-dim);
  border-bottom:1px dashed var(--line-strong);padding-bottom:10px;margin-bottom:26px;
  min-height:1.4em;
}
.hero-spec b{color:var(--ok);font-weight:600}
.hero-spec .tick-txt{display:inline-block;transition:opacity .3s ease, transform .3s ease}
.hero-spec .tick-txt.out{opacity:0;transform:translateY(4px)}
.hero h1{
  font-family:var(--display);font-weight:700;
  font-size:clamp(38px,4.6vw,60px);line-height:1.04;margin:0 0 22px;
  max-width:12ch;
}
.hero p.lede{
  color:var(--text-dim);font-size:17px;line-height:1.65;max-width:46ch;margin:0 0 32px;
}
.hero-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.btn{
  position:relative;overflow:hidden;
  display:inline-block;border:0;font-family:var(--body);
  background:var(--accent);color:#160a03;font-weight:600;font-size:15px;
  padding:15px 26px;text-decoration:none;cursor:pointer;
  transition:transform .15s ease, background .15s ease, box-shadow .15s ease;
}
.btn:hover{transform:translateY(-2px);background:#ff7c45;box-shadow:0 10px 26px #ff6a2b33}
.btn:active{transform:translateY(0)}
.btn .ripple{
  position:absolute;border-radius:50%;background:#ffffff55;
  transform:scale(0);animation:ripple .55s ease-out forwards;pointer-events:none;
}
@keyframes ripple{to{transform:scale(1);opacity:0}}
.btn-ghost{
  background:transparent;border:1px solid var(--line-strong);color:var(--text);
}
.btn-ghost:hover{background:var(--panel);transform:none;box-shadow:none}
.link-quiet{font-size:14px;color:var(--text-dim);text-decoration:underline;text-underline-offset:3px}

.hero-diagram{position:relative;padding:34px;background:var(--panel)}
.hero-diagram svg{width:100%;height:auto;display:block}
.hero-diagram figcaption{
  margin-top:16px;font-size:12.5px;color:var(--text-faint);
  display:flex;justify-content:space-between;border-top:1px dashed var(--line);padding-top:12px;
}

/* ---------- section shell ---------- */
section{padding:80px 7%}
.section-head{max-width:56ch;margin-bottom:44px}
.section-head h2{
  font-family:var(--display);font-weight:700;font-size:clamp(28px,3vw,38px);
  margin:0 0 14px;
}
.section-head p{color:var(--text-dim);font-size:16px;line-height:1.6;margin:0}

/* ---------- problem ---------- */
.problem{background:var(--panel-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.risk-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
.risk{background:var(--panel-alt);padding:26px 22px}
.risk .num{font-family:var(--display);font-size:14px;color:var(--accent);display:block;margin-bottom:14px}
.risk h3{font-size:16px;margin:0 0 8px;font-weight:600}
.risk p{font-size:14px;color:var(--text-dim);line-height:1.55;margin:0}

/* ---------- features ---------- */
.feature-list{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.feature{background:var(--bg);padding:28px 24px}
.feature .dot{width:9px;height:9px;background:var(--ok);display:inline-block;margin-bottom:16px}
.feature h3{font-size:16.5px;font-weight:600;margin:0 0 8px}
.feature p{font-size:14px;color:var(--text-dim);line-height:1.55;margin:0}

/* ---------- pricing ---------- */
.pricing{border-top:1px solid var(--line)}
.cards{display:grid;grid-template-columns:repeat(2,minmax(300px,440px));justify-content:center;gap:28px;margin-top:8px}
.card{background:var(--panel);border:1px solid var(--line);padding:34px 30px 30px;position:relative}
.card.featured{border-color:var(--line-strong)}
.stamp{
  position:absolute;top:22px;right:24px;transform:rotate(6deg);
  border:2px solid var(--accent);color:var(--accent);
  font-family:var(--display);font-weight:700;font-size:12px;letter-spacing:.5px;
  padding:5px 9px;
}
.plan-top{display:flex;align-items:baseline;gap:10px}
.plan-top h3{font-family:var(--display);font-weight:700;font-size:26px;margin:0}
.tag{font-size:11px;padding:4px 8px;color:var(--text-dim);border:1px solid var(--line-strong)}
.price{font-family:var(--display);font-size:52px;font-weight:700;margin:22px 0 6px}
.price small{font-family:var(--body);font-size:14px;color:var(--text-dim);font-weight:500}
.card ul{padding:0;list-style:none;margin:22px 0 26px;color:var(--text-dim);font-size:14.5px}
.card ul li{padding:9px 0;border-top:1px dashed var(--line)}
.card ul li:first-child{border-top:none}
.card button{width:100%;font-family:var(--body)}

/* ---------- how it works ---------- */
.how{background:var(--panel-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px}
.steps>div{padding:0;position:relative}
.steps .num{
  font-family:var(--display);font-weight:800;font-size:15px;
  color:var(--bg);background:var(--ok);
  width:30px;height:30px;display:grid;place-items:center;margin-bottom:18px;
}
.steps strong{display:block;font-size:16.5px;margin-bottom:8px}
.steps p{color:var(--text-dim);line-height:1.55;font-size:14.5px;margin:0}

/* ---------- faq ---------- */
.faq{max-width:760px}

/* ---------- footer ---------- */
footer{
  padding:34px 7%;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;
}
.foot-brand{font-family:var(--display);font-weight:700;font-size:15px}
.foot-trust{display:flex;gap:18px;color:var(--text-faint);font-size:12.5px;flex-wrap:wrap}
.foot-trust span{display:flex;align-items:center;gap:6px}
.foot-trust .dot{width:6px;height:6px;background:var(--ok);border-radius:50%}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;background:#05080ad9;display:grid;place-items:center;padding:20px;z-index:50}
.hidden{display:none}
.modal-box{width:min(460px,100%);background:var(--panel);border:1px solid var(--line-strong);padding:34px;position:relative}
.modal-box h2{margin:0 0 8px;font-family:var(--display);font-weight:700;font-size:24px}
.modal-box p.hint{color:var(--text-dim);line-height:1.55;font-size:14px;margin:0 0 6px}
.close{position:absolute;right:14px;top:12px;background:none;border:0;color:var(--text-dim);font-size:26px;cursor:pointer;line-height:1}
.close:hover{color:var(--text)}
.modal-box label{display:block;margin:18px 0 7px;font-size:12.5px;color:var(--text-dim)}
.modal-box input{
  width:100%;padding:13px 14px;border:1px solid var(--line-strong);
  background:var(--bg);color:var(--text);outline:none;font-family:var(--body);font-size:15px;
}
.modal-box input:focus-visible{border-color:var(--ok)}
.modal-box form button{width:100%;margin-top:24px}
.error{color:#ff8f7a;margin-top:12px;font-size:13px;min-height:1em}
.secure{display:block;text-align:center;color:var(--text-faint);margin-top:18px;font-size:12.5px}

:focus-visible{outline:2px solid var(--ok);outline-offset:2px}

/* ---------- motion: scroll reveal ---------- */
.reveal{
  opacity:0;transform:translateY(22px);
  transition:opacity .6s cubic-bezier(.2,.7,.2,1), transform .6s cubic-bezier(.2,.7,.2,1);
  transition-delay:var(--d,0s);
}
.reveal.in{opacity:1;transform:translateY(0)}

/* ---------- motion: tilt cards ---------- */
.tilt{transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.tilt.dragging{transition:transform .05s linear}

/* ---------- circuit dots (hero background life) ---------- */
.circuit-layer{position:absolute;inset:0;pointer-events:none;z-index:0;overflow:hidden}
.circuit-dot{
  position:absolute;width:4px;height:4px;background:var(--ok);border-radius:50%;
  opacity:0;box-shadow:0 0 8px 1px #33d19a99;
  animation:dotflicker 3.4s ease-in-out infinite;
}
@keyframes dotflicker{
  0%,100%{opacity:0}
  50%{opacity:.85}
}

/* ---------- stats / counters ---------- */
.stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);margin-top:44px;
}
.stat{background:var(--panel);padding:26px 22px}
.stat .stat-num{
  font-family:var(--display);font-weight:700;font-size:clamp(30px,3.4vw,42px);
  color:var(--ok);display:block;line-height:1;
}
.stat .stat-label{font-size:13px;color:var(--text-dim);margin-top:8px;display:block}

/* ---------- ticker log ---------- */
.log-feed{margin-top:14px;font-size:12px;color:var(--text-faint);min-height:1.4em}
.log-feed .line{transition:opacity .35s ease}

/* ---------- faq accordion (JS driven) ---------- */
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-q{
  all:unset;box-sizing:border-box;cursor:pointer;width:100%;
  padding:20px 4px;display:flex;justify-content:space-between;align-items:center;gap:20px;
  font-size:15.5px;font-weight:600;font-family:var(--body);color:var(--text);
}
.faq-q .ind{
  font-family:var(--display);font-size:20px;color:var(--accent);flex:none;
  transition:transform .3s ease, color .3s ease;display:inline-block;
}
.faq-item.open .faq-q .ind{transform:rotate(45deg);color:var(--ok)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .35s ease;
}
.faq-a p{margin:0 4px 22px;color:var(--text-dim);font-size:14.5px;line-height:1.65;max-width:64ch}

/* ---------- modal motion ---------- */
.modal{
  opacity:0;transition:opacity .25s ease;
}
.modal.show{opacity:1}
.modal-box{transform:scale(.94) translateY(10px);transition:transform .3s cubic-bezier(.2,.8,.2,1)}
.modal.show .modal-box{transform:scale(1) translateY(0)}

/* ---------- confetti (success page) ---------- */
.confetti-layer{position:fixed;inset:0;pointer-events:none;overflow:hidden;z-index:60}
.confetti-piece{
  position:absolute;top:-12px;width:8px;height:12px;opacity:.9;
  animation:confetti-fall linear forwards;
}
@keyframes confetti-fall{
  to{transform:translateY(110vh) rotate(540deg);opacity:0}
}

@media(prefers-reduced-motion:reduce){
  .reveal{transition-duration:.01s;transform:none}
  .tilt{transition:none}
  .circuit-dot,.confetti-piece{animation:none;display:none}
  .hero::before{display:none}
  .pulse{animation:none}
}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .hero{grid-template-columns:1fr}
  .risk-grid{grid-template-columns:repeat(2,1fr)}
  .feature-list{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
}
@media(max-width:600px){
  .nav{padding:0 5%}
  .navlinks{display:none}
  section{padding:64px 6%}
  .risk-grid,.feature-list{grid-template-columns:1fr}
  footer{flex-direction:column;align-items:flex-start}
}