/* ============================================================
   HSE U-SEE U-ACT — homepage redesign
   Scoped to index.php only. Does not touch styles_ucua.css,
   so form.php keeps its current look until it's redesigned too.
   ============================================================ */

:root{
  --ink:#10161d;
  --plate:#1a222c;
  --plate-2:#212b37;
  --amber:#ffb020;
  --orange:#ff5a2b;
  --green:#28b673;
  --amber-ink:#ffb020;
  --orange-ink:#ff5a2b;
  --green-ink:#28b673;
  --fog:#8b98a8;
  --white:#f7f8fa;
  --line: rgba(255,255,255,0.08);
  --nav-bg: rgba(16,22,29,0.92);
  --radius: 4px;
}

/* Follow the phone/browser's system theme automatically */
@media (prefers-color-scheme: light){
  :root{
    --ink:#f4f6f8;
    --plate:#ffffff;
    --plate-2:#ffffff;
    --amber-ink:#a06a00;
    --orange-ink:#c1400e;
    --green-ink:#1f8a55;
    --fog:#5b6675;
    --white:#12181f;
    --line: rgba(16,22,29,0.10);
    --nav-bg: rgba(244,246,248,0.92);
  }
  .card{ box-shadow:0 1px 3px rgba(16,22,29,0.06); }
  .card:hover{ box-shadow:0 14px 30px rgba(16,22,29,0.12); }
  .card .rivet{ background:rgba(16,22,29,0.10); }
}
*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
body{
  background: var(--ink);
  color: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
  background-image:
    radial-gradient(circle at 15% 0%, rgba(255,176,32,0.06), transparent 40%),
    radial-gradient(circle at 100% 20%, rgba(255,90,43,0.05), transparent 45%);
}
h1,h2,h3{ font-family: Arial, Helvetica, sans-serif; text-transform:uppercase; letter-spacing:0.01em; margin:0; }
.mono{ font-family: Arial, Helvetica, sans-serif; }
a{ text-decoration:none; color:inherit; }

/* hazard stripe — signature element, always black/amber regardless of theme */
.hazard-bar{ height:6px; background: repeating-linear-gradient(135deg, var(--amber) 0 18px, #10161d 18px 36px); }

/* NAV */
header.topnav{
  position:sticky; top:0; z-index:50;
  background: var(--nav-bg);
  border-bottom:1px solid var(--line);
}
.topnav-inner{
  max-width:1120px; margin:0 auto;
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 24px;
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand img{ height:34px; width:auto; display:block; background:#ffffff; padding:4px 8px; border-radius:3px; border:1px solid var(--line); }
.brand-text{ line-height:1.2; }
.brand-text .t1{ font-weight:700; font-size:17px; letter-spacing:0.01em; }
.brand-text .t2{ font-size:11px; color:var(--fog); letter-spacing:0.04em; }
.nav-status{ display:flex; align-items:center; gap:8px; font-size:12px; color:var(--fog); }
.dot{ width:7px; height:7px; border-radius:50%; background:var(--green); box-shadow:0 0 8px var(--green); }

/* bilingual helpers */
.bm-inline{ font-size:0.78em; color:var(--fog); font-weight:400; text-transform:none; letter-spacing:0.01em; margin-left:6px; }
.bm-block{ display:block; margin-left:0; margin-top:4px; }
.bm-sub{ display:block; font-size:13.5px; color:var(--fog); text-transform:none; font-family: Arial, Helvetica, sans-serif; font-weight:400; margin-top:5px; letter-spacing:0; }

/* landing — cards are the first thing seen, no hero copy */
.landing-main{
  max-width:1120px; margin:0 auto; padding:56px 24px 40px;
  min-height:calc(100vh - 220px);
  display:flex; flex-direction:column; justify-content:center;
}
.section-label{ display:flex; align-items:center; gap:14px; margin-bottom:28px; }
.section-label .n{ color:var(--amber-ink); font-size:13px; font-weight:700; }
.section-label h2{ font-size:13.5px; letter-spacing:0.1em; color:var(--fog); font-weight:700; }
.section-label::after{ content:''; flex:1; height:1px; background:var(--line); }

/* report type cards */
.cards{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.card{
  position:relative;
  background: linear-gradient(180deg, var(--plate-2), var(--plate));
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding:36px 26px 30px;
  cursor:pointer;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
  overflow:hidden;
  display:block;
}
.card::before{ content:''; position:absolute; top:0; left:0; right:0; height:4px; background: var(--accent, var(--amber)); }
.card:hover{ transform: translateY(-4px); border-color: rgba(255,255,255,0.18); box-shadow:0 14px 30px rgba(0,0,0,0.35); }
.card .rivet{ position:absolute; width:5px; height:5px; border-radius:50%; background:rgba(255,255,255,0.14); }
.card .rivet.tl{ top:10px; left:10px; } .card .rivet.tr{ top:10px; right:10px; }
.card .icon{ width:66px; height:66px; margin-bottom:24px; }
.card .icon svg{ width:100%; height:100%; display:block; }
.card .code{ font-size:11.5px; color:var(--fog); margin-bottom:8px; letter-spacing:0.04em; font-weight:700; }
.card h3{ font-size:23px; color:var(--white); margin-bottom:26px; line-height:1.25; }
.card .go{ display:flex; align-items:center; gap:8px; font-size:13px; color:var(--accent-ink, var(--amber-ink)); font-weight:700; }
.card .go svg{ width:14px; height:14px; transition: transform .15s ease; }
.card:hover .go svg{ transform:translateX(4px); }

.card.unsafe-act{ --accent: var(--orange); --accent-ink: var(--orange-ink); }
.card.unsafe-cond{ --accent: var(--amber); --accent-ink: var(--amber-ink); }
.card.safe-obs{ --accent: var(--green); --accent-ink: var(--green-ink); }

footer{
  max-width:1120px; margin:20px auto 0; padding:30px 24px 60px;
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px;
  color:var(--fog); font-size:11.5px;
  border-top:1px solid var(--line);
}
.footer-tag{ text-align:right; }

/* COMPACT MOBILE ROWS — phone is the primary target, all 3 choices
   must fit one screen with zero scrolling */
@media (max-width:820px){
  .topnav-inner{ padding:10px 16px; }
  .brand img{ height:26px; }
  .brand-text .t1{ font-size:14px; }
  .brand-text .t2 .bm-inline{ display:none; }
  .nav-status .bm-inline{ display:none; }

  .landing-main{ padding:18px 16px 20px; min-height:calc(100vh - 130px); justify-content:flex-start; }
  .section-label{ margin-bottom:14px; }
  .section-label h2{ font-size:13px; }
  .cards{ grid-template-columns:1fr; gap:12px; }
  .card{
    display:flex; flex-direction:row; align-items:center; text-align:left;
    gap:14px; padding:16px;
  }
  .card::before{ top:0; left:0; bottom:0; right:auto; width:4px; height:auto; }
  .card:hover{ transform:none; }
  .card .rivet{ display:none; }
  .card .icon{ width:46px; height:46px; margin-bottom:0; flex:0 0 auto; }
  .card .icon svg{ width:100%; height:100%; }
  .ucua-body{ flex:1 1 auto; min-width:0; text-align:left; }
  .card .code{ display:none; }
  .card h3{ font-size:17px; margin-bottom:0; line-height:1.3; font-weight:700; text-align:left; }
  .card h3 .bm-sub{ font-size:13.5px; margin-top:3px; }
  .card .go{ flex:0 0 auto; }
  .card .go-label{ display:none; }
  .card .go svg{ width:18px; height:18px; }

  .bm-inline{ font-size:0.85em; }
  footer{ font-size:12.5px; }
}