/* =========================================================
   TRINITY TECH GROUP — Design System
   Distinct palette/type from any third-party reference site.
   ========================================================= */

:root{
  --ink:        #14121f;
  --ink-soft:   #423f57;
  --navy:       #0f0e1a;
  --navy-2:     #181630;
  --violet:     #5b4fe9;
  --violet-2:   #7d6ef5;
  --mint:       #29d3ae;
  --amber:      #f5b83d;
  --paper:      #f7f7fb;
  --paper-2:    #efeef8;
  --white:      #ffffff;
  --line:       #e4e2f2;
  --line-dark:  rgba(255,255,255,.12);
  --shadow:     0 20px 50px -20px rgba(20,18,31,.25);
  --radius:     18px;
  --radius-sm:  10px;
  --maxw:       1180px;
  --ff-head:    "Space Grotesk", "Segoe UI", sans-serif;
  --ff-body:    "Inter", "Segoe UI", sans-serif;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--ff-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4{
  font-family:var(--ff-head);
  line-height:1.12;
  margin:0 0 .5em;
  letter-spacing:-.01em;
}
p{ margin:0 0 1em; color:var(--ink-soft); }
ul{ margin:0; padding:0; list-style:none; }
.container{ max-width:var(--maxw); margin:0 auto; padding:0 24px; }
section{ padding:96px 0; }
@media (max-width:720px){ section{ padding:64px 0; } }

.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:13px; font-weight:600; letter-spacing:.08em; text-transform:uppercase;
  color:var(--violet); margin-bottom:16px;
}
.eyebrow::before{ content:""; width:22px; height:2px; background:var(--mint); display:inline-block; }

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:14px 26px; border-radius:999px; font-weight:600; font-size:15px;
  border:1px solid transparent; cursor:pointer; transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space:nowrap;
}
.btn-primary{ background:var(--ink); color:var(--white); }
.btn-primary:hover{ transform:translateY(-2px); box-shadow:var(--shadow); }
.btn-accent{ background:linear-gradient(135deg,var(--violet),var(--violet-2)); color:var(--white); }
.btn-accent:hover{ transform:translateY(-2px); box-shadow:0 18px 40px -16px rgba(91,79,233,.55); }
.btn-ghost{ background:transparent; border-color:var(--line); color:var(--ink); }
.btn-ghost:hover{ border-color:var(--ink); }
.btn-ghost-light{ background:transparent; border-color:var(--line-dark); color:var(--white); }
.btn-ghost-light:hover{ border-color:var(--white); }

/* ---------- Header ---------- */
/* NOTE: the frosted-glass blur lives on a ::before pseudo-element rather than
   directly on .site-header. backdrop-filter (like filter) on an element makes
   it the containing block for position:fixed descendants — since the mobile
   .nav-links panel below is fixed and lives inside the header, putting
   backdrop-filter on .site-header itself collapsed that panel's box down to
   the header's own 78px height, so its solid background no longer covered
   the overflowing menu text (looked like a transparent/broken menu). */
.site-header{
  position:relative; z-index:50;
  position:sticky; top:0;
  border-bottom:1px solid var(--line);
}
.site-header::before{
  content:""; position:absolute; inset:0; z-index:-1;
  background:rgba(247,247,251,.86); backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
}
.nav{ display:flex; align-items:center; justify-content:space-between; height:78px; }
.brand{ display:flex; align-items:center; gap:10px; font-family:var(--ff-head); font-weight:700; font-size:19px; }
.brand .mark{
  width:34px; height:34px; border-radius:9px;
  background:linear-gradient(135deg,var(--violet),var(--mint));
  display:flex; align-items:center; justify-content:center;
  color:var(--white); font-family:var(--ff-head); font-weight:700; font-size:16px;
}
.nav-links{ display:flex; align-items:center; gap:36px; }
.nav-links a{ font-size:15px; font-weight:500; color:var(--ink-soft); transition:color .15s; }
.nav-links a:hover, .nav-links a.active{ color:var(--ink); }
.nav-actions{ display:flex; align-items:center; gap:14px; }
.nav-toggle{ display:none; background:none; border:none; cursor:pointer; padding:6px; }
.nav-toggle span{ display:block; width:24px; height:2px; background:var(--ink); margin:5px 0; border-radius:2px; }

@media (max-width:900px){
  .nav-links{
    position:fixed; inset:78px 0 0 0; background:var(--paper);
    flex-direction:column; align-items:flex-start; gap:0;
    padding:12px 24px; transform:translateY(-8px); opacity:0; pointer-events:none;
    transition:opacity .2s ease, transform .2s ease; border-top:1px solid var(--line);
  }
  .nav-links.open{ opacity:1; pointer-events:auto; transform:translateY(0); }
  .nav-links a{ padding:14px 0; width:100%; border-bottom:1px solid var(--line); }
  .nav-toggle{ display:block; }
  .nav-actions .btn-ghost{ display:none; }
}

/* ---------- Hero ---------- */
.hero{
  background:var(--navy); color:var(--white); position:relative; overflow:hidden;
  padding:120px 0 100px;
}
.hero::before{
  content:""; position:absolute; inset:0;
  background:
    radial-gradient(560px 380px at 82% 8%, rgba(91,79,233,.45), transparent 60%),
    radial-gradient(480px 320px at 8% 92%, rgba(41,211,174,.28), transparent 60%);
  pointer-events:none;
}
.hero-inner{ position:relative; max-width:760px; }
.hero h1{ font-size:clamp(34px,5.4vw,58px); color:var(--white); }
.hero h1 em{ font-style:normal; background:linear-gradient(135deg,var(--mint),var(--violet-2)); -webkit-background-clip:text; background-clip:text; color:transparent; }
.hero p.lead{ font-size:19px; color:rgba(255,255,255,.72); max-width:560px; }
.hero-cta{ display:flex; gap:14px; margin-top:32px; flex-wrap:wrap; }
.hero-stats{
  position:relative; display:grid; grid-template-columns:repeat(3,auto); gap:40px;
  margin-top:72px; padding-top:32px; border-top:1px solid var(--line-dark);
  max-width:640px;
}
.hero-stats .stat b{ display:block; font-family:var(--ff-head); font-size:26px; color:var(--white); }
.hero-stats .stat span{ font-size:13px; color:rgba(255,255,255,.6); }
@media (max-width:640px){ .hero-stats{ grid-template-columns:1fr 1fr; } }

/* ---------- Section headers ---------- */
.section-head{ max-width:640px; margin-bottom:56px; }
.section-head h2{ font-size:clamp(26px,3.6vw,38px); }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }

/* ---------- Cards / grids ---------- */
.grid{ display:grid; gap:24px; }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }
.grid-2{ grid-template-columns:repeat(2,1fr); }
@media (max-width:900px){ .grid-3,.grid-4{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:620px){ .grid-3,.grid-4,.grid-2{ grid-template-columns:1fr; } }

.card{
  background:var(--white); border:1px solid var(--line); border-radius:var(--radius);
  padding:32px; transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover{ transform:translateY(-4px); box-shadow:var(--shadow); border-color:transparent; }
.card .icon{
  width:46px; height:46px; border-radius:12px; margin-bottom:20px;
  display:flex; align-items:center; justify-content:center;
  background:var(--paper-2); color:var(--violet); font-size:20px;
}
.card h3{ font-size:19px; }
.card p{ font-size:15px; margin-bottom:0; }

.card-dark{ background:var(--navy-2); border-color:var(--line-dark); color:var(--white); }
.card-dark h3{ color:var(--white); }
.card-dark p{ color:rgba(255,255,255,.66); }
.card-dark .icon{ background:rgba(255,255,255,.08); color:var(--mint); }

/* ---------- Pillars / numbered list ---------- */
.pillars{ counter-reset:pillar; }
.pillar{ display:flex; gap:20px; padding:26px 0; border-top:1px solid var(--line); }
.pillar:last-child{ border-bottom:1px solid var(--line); }
.pillar .num{ font-family:var(--ff-head); font-size:14px; color:var(--violet); min-width:34px; }
.pillar h3{ font-size:18px; margin-bottom:6px; }
.pillar p{ margin:0; font-size:15px; }

/* ---------- Process steps ---------- */
.steps{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
@media (max-width:900px){ .steps{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:520px){ .steps{ grid-template-columns:1fr; } }
.step{ position:relative; padding:28px 22px; border-radius:var(--radius); background:var(--white); border:1px solid var(--line); }
.step .step-no{ font-family:var(--ff-head); font-size:34px; color:var(--paper-2); -webkit-text-stroke:1.5px var(--violet); color:transparent; display:block; margin-bottom:14px; }
.step h4{ font-size:16px; margin-bottom:6px; }
.step p{ font-size:14px; margin:0; }

/* ---------- Band / CTA ---------- */
.band{ background:var(--navy); color:var(--white); border-radius:28px; padding:64px; position:relative; overflow:hidden; }
.band::before{ content:""; position:absolute; inset:0; background:radial-gradient(420px 260px at 90% 0%, rgba(41,211,174,.3), transparent 60%); }
.band-inner{ position:relative; display:flex; align-items:center; justify-content:space-between; gap:32px; flex-wrap:wrap; }
.band h2{ color:var(--white); margin-bottom:10px; font-size:clamp(24px,3.2vw,32px); }
.band p{ color:rgba(255,255,255,.7); margin:0; max-width:460px; }
@media (max-width:720px){ .band{ padding:40px 28px; } }

/* ---------- FAQ ---------- */
.faq-item{ border-bottom:1px solid var(--line); }
.faq-q{
  width:100%; text-align:left; background:none; border:none; cursor:pointer;
  padding:22px 0; display:flex; justify-content:space-between; align-items:center;
  font-family:var(--ff-head); font-size:17px; color:var(--ink); gap:20px;
}
.faq-q .plus{ font-size:20px; color:var(--violet); transition:transform .2s ease; flex:none; }
.faq-item.open .plus{ transform:rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .25s ease; }
.faq-item.open .faq-a{ max-height:240px; }
.faq-a p{ padding-bottom:22px; font-size:15px; }

/* ---------- Footer ---------- */
.site-footer{ background:var(--navy); color:rgba(255,255,255,.7); padding:72px 0 28px; }
.footer-grid{ display:grid; grid-template-columns:2fr 1fr 1fr 1.2fr; gap:40px; padding-bottom:48px; border-bottom:1px solid var(--line-dark); }
@media (max-width:820px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ .footer-grid{ grid-template-columns:1fr; } }
.footer-brand .brand{ color:var(--white); }
.footer-brand p{ color:rgba(255,255,255,.6); font-size:14px; max-width:280px; margin-top:14px; }
.footer-col h5{ font-family:var(--ff-head); color:var(--white); font-size:14px; letter-spacing:.04em; text-transform:uppercase; margin-bottom:16px; }
.footer-col a, .footer-col address{ display:block; color:rgba(255,255,255,.62); font-size:14px; font-style:normal; padding:6px 0; }
.footer-col a:hover{ color:var(--white); }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; padding-top:24px; font-size:13px; color:rgba(255,255,255,.5); }

/* ---------- Legal pages ---------- */
.legal-hero{ background:var(--navy); color:var(--white); padding:80px 0 56px; }
.legal-hero h1{ color:var(--white); font-size:clamp(28px,4vw,40px); }
.legal-hero p{ color:rgba(255,255,255,.65); margin:0; }
.legal-body{ padding:64px 0 100px; }
.legal-body .wrap{ max-width:800px; margin:0 auto; }
.legal-body h2{ font-size:21px; margin-top:2.2em; }
.legal-body h2:first-child{ margin-top:0; }
.legal-body p, .legal-body li{ color:var(--ink-soft); font-size:16px; }
.legal-body ul{ margin:0 0 1em; padding-left:20px; list-style:disc; }
.legal-body li{ margin-bottom:.4em; }
.legal-updated{ display:inline-block; font-size:13px; color:var(--violet); font-weight:600; margin-bottom:18px; }

/* ---------- Contact ---------- */
.contact-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:48px; align-items:start; }
@media (max-width:860px){ .contact-grid{ grid-template-columns:1fr; } }
.form-field{ margin-bottom:18px; }
.form-field label{ display:block; font-size:13px; font-weight:600; margin-bottom:6px; color:var(--ink); }
.form-field input, .form-field textarea{
  width:100%; padding:13px 16px; border-radius:var(--radius-sm); border:1px solid var(--line);
  font-family:var(--ff-body); font-size:15px; background:var(--white); color:var(--ink);
}
.form-field textarea{ min-height:130px; resize:vertical; }
.form-field input:focus, .form-field textarea:focus{ outline:2px solid var(--violet); outline-offset:1px; }
.contact-card{ background:var(--white); border:1px solid var(--line); border-radius:var(--radius); padding:32px; }
.contact-card h3{ font-size:16px; text-transform:uppercase; letter-spacing:.05em; color:var(--ink-soft); margin-bottom:18px; }
.contact-row{ display:flex; gap:14px; padding:14px 0; border-top:1px solid var(--line); }
.contact-row:first-of-type{ border-top:none; }
.contact-row .icon{ width:38px; height:38px; border-radius:10px; background:var(--paper-2); color:var(--violet); display:flex; align-items:center; justify-content:center; flex:none; font-size:16px; }
.contact-row div b{ display:block; font-size:14px; }
.contact-row div span{ font-size:14px; color:var(--ink-soft); }
.map-frame{ border-radius:var(--radius); overflow:hidden; border:1px solid var(--line); margin-top:20px; }
.map-frame iframe{ width:100%; height:240px; border:0; display:block; }
.form-note{ font-size:13px; color:var(--ink-soft); margin-top:8px; }

/* ---------- Page hero (inner pages) ---------- */
.page-hero{ background:var(--navy); color:var(--white); padding:96px 0 64px; position:relative; overflow:hidden; }
.page-hero::before{ content:""; position:absolute; inset:0; background:radial-gradient(480px 320px at 85% 0%, rgba(91,79,233,.4), transparent 60%); }
.page-hero .inner{ position:relative; max-width:680px; }
.page-hero h1{ color:var(--white); font-size:clamp(30px,4.6vw,46px); }
.page-hero p{ color:rgba(255,255,255,.7); font-size:18px; margin:0; }

.two-col{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
@media (max-width:820px){ .two-col{ grid-template-columns:1fr; } }
.stat-block{ background:var(--white); border:1px solid var(--line); border-radius:var(--radius); padding:24px; }
.stat-block b{ font-family:var(--ff-head); font-size:24px; display:block; }
.stat-block span{ font-size:13px; color:var(--ink-soft); }

.tag-list{ display:flex; flex-wrap:wrap; gap:10px; }
.tag{ padding:8px 16px; border-radius:999px; background:var(--paper-2); font-size:13px; font-weight:600; color:var(--ink-soft); }

.skip-link{ position:absolute; left:-999px; top:0; background:var(--ink); color:#fff; padding:10px 16px; z-index:100; }
.skip-link:focus{ left:16px; top:16px; }