/* ============================================================
   Warranty Registration Portal — neutral multi-brand platform
   Design system: custom (no existing component library in play)
   Display: Zilla Slab · Body: Public Sans · Accent hue: teal 195
   ============================================================ */
:root{
  --color-bg:            oklch(0.970 0.006 195);
  --color-surface:       oklch(0.995 0.003 195);
  --color-raised:        oklch(0.940 0.010 195);
  --color-ink:           oklch(0.190 0.020 195);
  --color-ink-muted:     oklch(0.460 0.016 195);
  --color-ink-faint:     oklch(0.640 0.012 195);
  --color-accent:        oklch(0.480 0.110 195);
  --color-accent-hover:  oklch(0.420 0.120 195);
  --color-accent-press:  oklch(0.360 0.125 195);
  --color-accent-soft:   oklch(0.930 0.030 195);
  --color-border:        oklch(0.885 0.012 195);
  --color-border-strong: oklch(0.760 0.020 195);
  --color-error:         oklch(0.550 0.190 25);
  --color-error-soft:    oklch(0.950 0.030 25);
  --color-success:       oklch(0.560 0.140 150);
  --color-success-soft:  oklch(0.950 0.035 150);

  --radius:      16px;
  --radius-sm:   10px;
  --shadow-sm:   0 1px 2px oklch(0.19 0.02 195 / 0.05);
  --shadow-md:   0 1px 3px oklch(0.19 0.02 195 / 0.06), 0 10px 26px oklch(0.19 0.02 195 / 0.06);
  --shadow-lg:   0 14px 30px oklch(0.48 0.11 195 / 0.16), 0 4px 10px oklch(0.19 0.02 195 / 0.08);

  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:'Public Sans',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  font-size:16px;
  color:var(--color-ink);background:var(--color-bg);line-height:1.6;
  -webkit-font-smoothing:antialiased;min-height:100vh;
  display:flex;flex-direction:column;
  font-variant-numeric:proportional-nums;
}
a{text-decoration:none;color:inherit}
h1,h2,h3{font-family:'Zilla Slab',Georgia,serif;text-wrap:balance}
p{text-wrap:pretty}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px;width:100%}
.wrap-narrow{max-width:640px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:20;
  background:oklch(0.995 0.003 195 / 0.86);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--color-border);
}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand-lockup{display:flex;align-items:center;gap:11px}
.brand-mark{width:34px;height:34px;flex:none;color:var(--color-accent)}
.brand-lockup .name{font-family:'Zilla Slab',Georgia,serif;font-weight:600;font-size:16px;letter-spacing:-.01em;line-height:1.15}
.brand-lockup .tag{font-size:12px;color:var(--color-ink-muted);font-weight:500;font-family:'Public Sans',sans-serif}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:52px 0 30px}
.hero::before{content:"";position:absolute;inset:0;
  background:radial-gradient(640px 260px at 12% -10%, oklch(0.48 0.11 195 / 0.08), transparent 70%);
  pointer-events:none;}
.hero .wrap{position:relative}
h1{font-size:clamp(28px,4vw,40px);font-weight:600;letter-spacing:-.015em;margin:0 0 12px;line-height:1.15;max-width:14ch}
.sub{font-size:clamp(15px,1.6vw,17px);color:var(--color-ink-muted);max-width:52ch}

/* ---------- Step tracker (signature element) ---------- */
.tracker{display:flex;align-items:flex-start;margin-top:30px;max-width:620px}
.tstep{display:flex;flex-direction:column;align-items:center;flex:1;position:relative;text-align:center}
.tstep .circle{
  width:34px;height:34px;border-radius:50%;flex:none;
  background:var(--color-surface);border:2px solid var(--color-border-strong);color:var(--color-ink-muted);
  font-family:'Zilla Slab',Georgia,serif;font-size:15px;font-weight:600;
  display:grid;place-items:center;z-index:1;transition:background 160ms var(--ease-out), border-color 160ms var(--ease-out), color 160ms var(--ease-out);
}
.tstep.active .circle{background:var(--color-accent);border-color:var(--color-accent);color:var(--color-surface)}
.tstep .label{font-size:12.5px;font-weight:600;color:var(--color-ink-muted);margin-top:9px;max-width:12ch}
.tstep.active .label{color:var(--color-ink)}
.tstep:not(:last-child)::after{
  content:"";position:absolute;top:17px;left:calc(50% + 17px);width:calc(100% - 34px);height:2px;
  background:var(--color-border-strong);z-index:0;
}

/* ---------- Section bar ---------- */
.section-bar{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:40px 0 20px;flex-wrap:wrap}
.section-bar h2{font-size:19px;font-weight:600;letter-spacing:-.01em}
.section-bar p{font-size:13.5px;color:var(--color-ink-muted);margin-top:3px;font-family:'Public Sans',sans-serif}

/* ---------- Search ---------- */
.search{position:relative;flex:none}
.search input{width:min(280px,72vw);font:inherit;font-size:14px;padding:10px 14px 10px 38px;
  border:1.5px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-ink);
  box-shadow:var(--shadow-sm);transition:border-color 150ms var(--ease-out), box-shadow 150ms var(--ease-out)}
.search input:hover{border-color:var(--color-border-strong)}
.search input:focus-visible{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-soft)}
.search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--color-ink-faint)}

/* ---------- Brand directory grid ---------- */
/* Legitimate grid use: each tile is an independently-navigable brand link, not decorative feature copy. */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}
.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);
  padding:22px 16px 16px;box-shadow:var(--shadow-md);display:flex;flex-direction:column;align-items:center;gap:12px;
  transition:transform 180ms var(--ease-out), box-shadow 180ms var(--ease-out), border-color 180ms var(--ease-out);
  position:relative;}
@media (hover:hover) and (pointer:fine){
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--color-accent)}
  .card:hover .cta{opacity:1;transform:none}
}
.card:focus-visible{outline:2px solid var(--color-accent);outline-offset:3px}
.logo-box{height:76px;width:100%;display:flex;align-items:center;justify-content:center}
.logo-box img{max-height:72px;max-width:80%;object-fit:contain}
.card .bname{font-size:14px;font-weight:600;color:var(--color-ink);font-family:'Public Sans',sans-serif}
.card .cta{font-size:12px;font-weight:600;color:var(--color-accent);display:inline-flex;align-items:center;gap:5px;
  opacity:0;transform:translateY(3px);transition:opacity 160ms var(--ease-out), transform 160ms var(--ease-out)}
.empty{display:none;text-align:center;color:var(--color-ink-muted);padding:40px 0;font-size:14px}

/* ---------- Panel / form container ---------- */
.panel{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);
  box-shadow:var(--shadow-md);overflow:hidden}
.panel-head{padding:20px 24px;border-bottom:1px solid var(--color-border);display:flex;align-items:center;gap:14px}
.panel-head .selected-brand{margin-left:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--color-ink-muted)}
.panel-head .selected-brand img{height:24px;max-width:84px;object-fit:contain}
.panel-title{font-size:18px;font-weight:600;letter-spacing:-.01em}
.panel-body{padding:26px}

/* ---------- Forms ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field[hidden]{display:none}
.field.col-span-2{grid-column:1 / -1}
.field label{font-size:13px;font-weight:600;color:var(--color-ink)}
.field .opt{font-weight:500;color:var(--color-ink-faint)}
.field .req{color:var(--color-error);margin-left:2px}
.input,.select,textarea.input{
  font:inherit;font-size:14.5px;padding:11px 13px;border:1.5px solid var(--color-border-strong);
  border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-ink);width:100%;
  transition:border-color 150ms var(--ease-out), box-shadow 150ms var(--ease-out)}
.input::placeholder{color:var(--color-ink-faint)}
.input:hover,.select:hover{border-color:oklch(0.68 0.02 195)}
.input:focus-visible,.select:focus-visible,textarea.input:focus-visible{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-soft)}
textarea.input{resize:vertical;min-height:84px}
.select{appearance:none;cursor:pointer;padding-right:38px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23516670' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 13px center;}
.hint{font-size:12px;color:var(--color-ink-muted)}

/* Date field — icon is a visual affordance only; the input stays a normal editable text field */
.date-field{position:relative}
.date-field svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--color-ink-faint);pointer-events:none}
.date-field .input{padding-left:38px}

/* File upload */
.file-drop{border:1.5px dashed var(--color-border-strong);border-radius:var(--radius-sm);padding:18px;text-align:center;
  cursor:pointer;transition:border-color 150ms var(--ease-out), background 150ms var(--ease-out);background:oklch(0.985 0.004 195)}
.file-drop:hover{border-color:var(--color-accent);background:var(--color-accent-soft)}
.file-drop:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}
.file-drop svg{color:var(--color-accent);margin-bottom:6px}
.file-drop .fd-main{font-size:14px;font-weight:600}
.file-drop .fd-sub{font-size:12px;color:var(--color-ink-muted);margin-top:2px}
.file-drop.has-file{border-style:solid;border-color:var(--color-success);background:var(--color-success-soft)}
.file-drop input[type=file]{display:none}

/* Checkbox */
.check{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--color-ink);cursor:pointer}
.check input{width:18px;height:18px;margin-top:1px;accent-color:var(--color-accent);cursor:pointer;flex:none}
.check a{color:var(--color-accent);font-weight:600}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:inherit;font-size:15px;font-weight:600;
  padding:12px 22px;border-radius:var(--radius-sm);border:1.5px solid transparent;cursor:pointer;text-align:center;
  transition:background 150ms var(--ease-out), border-color 150ms var(--ease-out), transform 120ms var(--ease-out), opacity 150ms var(--ease-out)}
.btn-primary{background:var(--color-accent);color:var(--color-surface)}
.btn-primary:hover{background:var(--color-accent-hover)}
.btn-primary:active{background:var(--color-accent-press);transform:scale(0.98)}
.btn-primary:focus-visible{outline:2px solid var(--color-accent);outline-offset:3px}
.btn-primary:disabled{opacity:.45;cursor:not-allowed}
.btn-ghost{background:transparent;color:var(--color-ink-muted);border-color:var(--color-border-strong)}
.btn-ghost:hover{color:var(--color-ink);border-color:var(--color-ink-faint)}
.btn-ghost:active{transform:scale(0.98)}
.btn-ghost:focus-visible{outline:2px solid var(--color-accent);outline-offset:3px}
.btn-lg{padding:13px 26px;font-size:15.5px}
.form-actions{display:flex;align-items:center;gap:12px;margin-top:8px}
.form-actions .spacer{flex:1}

/* Back link */
.backlink{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--color-ink-muted);margin:22px 0 4px}
.backlink:hover{color:var(--color-accent)}
.backlink:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px;border-radius:4px}

/* ---------- Confirmation page ---------- */
.success-wrap{max-width:600px;margin:44px auto 0;padding:0 20px;width:100%}
.success-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);
  box-shadow:var(--shadow-md);overflow:hidden}
.success-top{padding:36px 32px 24px;text-align:center;position:relative;
  background:radial-gradient(460px 180px at 50% -30%, var(--color-success-soft), transparent 70%)}
.success-badge{width:60px;height:60px;border-radius:50%;background:var(--color-success-soft);
  border:1px solid oklch(0.56 0.14 150 / 0.35);display:grid;place-items:center;margin:0 auto 16px}
.success-badge svg{color:var(--color-success)}
.success-top h1{font-size:22px;margin:0 0 6px;max-width:none}
.success-top p{color:var(--color-ink-muted);font-size:14.5px;max-width:400px;margin:0 auto}
.summary{padding:6px 32px 4px}
.summary .srow{display:flex;gap:16px;padding:13px 0;border-bottom:1px solid var(--color-border);font-size:14px}
.summary .srow:last-child{border-bottom:0}
.summary .slabel{width:150px;flex:none;color:var(--color-ink-muted);font-weight:500}
.summary .sval{font-weight:600;color:var(--color-ink)}
.success-foot{padding:20px 32px 30px;text-align:center}
.support-box{background:oklch(0.985 0.004 195);border:1px solid var(--color-border);border-radius:var(--radius-sm);
  padding:14px 16px;font-size:13.5px;color:var(--color-ink-muted);margin-bottom:20px}
.support-box a{color:var(--color-accent);font-weight:600}

/* ---------- Footer ---------- */
footer{margin-top:auto;border-top:1px solid var(--color-border);background:var(--color-surface)}
footer .wrap{display:flex;align-items:center;justify-content:space-between;padding:20px 20px;flex-wrap:wrap;gap:10px;
  font-size:12.5px;color:var(--color-ink-faint)}
footer a{color:var(--color-ink-faint);font-weight:500}
footer a:hover{color:var(--color-accent)}
footer .staff-link{font-size:11.5px}

/* ---------- Modal ---------- */
.modal-overlay{position:fixed;inset:0;background:oklch(0.19 0.02 195 / 0.45);backdrop-filter:blur(2px);z-index:50;
  display:none;align-items:center;justify-content:center;padding:20px}
.modal-overlay.open{display:flex}
.modal{background:var(--color-surface);border-radius:var(--radius);max-width:560px;width:100%;max-height:82vh;
  overflow:auto;box-shadow:0 24px 60px oklch(0.19 0.02 195 / 0.3)}
.modal-header{padding:18px 22px;border-bottom:1px solid var(--color-border);display:flex;align-items:center;justify-content:space-between}
.modal-header h3{font-size:17px}
.modal-close{background:none;border:none;font-size:22px;cursor:pointer;color:var(--color-ink-muted);line-height:1}
.modal-close:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}
.modal-body{padding:22px;font-size:14px;color:var(--color-ink-muted);line-height:1.65}
.modal-body p{margin-bottom:12px}
.modal-footer{padding:16px 22px;border-top:1px solid var(--color-border);text-align:right}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;}
}

@media (max-width:640px){
  .form-grid{grid-template-columns:1fr}
  .site-header .wrap{height:56px}
  .hero{padding:36px 0 20px}
  .grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px}
  .summary .slabel{width:120px}
  .tstep .label{font-size:11px}
}