/* HSN 2026 - shared design system (light, minimal, B2B) */
:root{
  /* Strict palette: white, black, grays, electric blue */
  --bg:#FFFFFF;
  --bg-subtle:#F9FAFB;
  --surface:#FFFFFF;
  --border:#E5E7EB;
  --border-strong:#D1D5DB;
  --ink:#09090B;
  --ink-2:#3F3F46;
  --ink-3:#9CA3AF;
  --accent:#0055FF;
  --accent-hover:#0047D6;
  --accent-soft:#EEF3FF;
  --accent-border:#C7D7FF;
  --accent-ink:#FFFFFF;
  --hover:#F3F4F6;

  /* Status (still monochrome + blue; always paired with an icon + label) */
  --ok:#0055FF;            /* completed */
  --ok-bg:#EEF3FF;
  --ok-border:#C7D7FF;
  --warn:#09090B;          /* pending */
  --warn-bg:#FFFFFF;
  --warn-border:#09090B;
  --danger:#B91C1C;        /* error messages only */
  --danger-bg:#FEF2F2;
  --danger-border:#FECACA;

  --radius:12px;
  --radius-sm:8px;
  --shadow-pop:0 8px 24px -12px rgba(9,9,11,.18); /* dropdown popovers only */
  --font-head:'Space Grotesk', system-ui, sans-serif;
  --font-body:'Inter', system-ui, sans-serif;
}

*{ margin:0; padding:0; box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; }
body{
  background:var(--bg);
  color:var(--ink-2);
  font-family:var(--font-body);
  font-size:14px;
  line-height:1.55;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{ font-family:var(--font-head); color:var(--ink); letter-spacing:-0.02em; line-height:1.15; }
a{ color:inherit; }
button{ font:inherit; }
:focus-visible{ outline:2px solid var(--accent); outline-offset:2px; }

/* Technical dot-grid backdrop, fades out down the page */
.grid-bg{
  position:fixed; inset:0; z-index:-1; pointer-events:none;
  background-image:radial-gradient(circle, rgba(9,9,11,.16) 1px, transparent 1.2px);
  background-size:22px 22px;
  -webkit-mask-image:linear-gradient(to bottom, #000 0, rgba(0,0,0,.35) 420px, transparent 900px);
  mask-image:linear-gradient(to bottom, #000 0, rgba(0,0,0,.35) 420px, transparent 900px);
}

.container{ max-width:1200px; margin:0 auto; padding:0 24px; }

/* ---------- Top navigation ---------- */
.nav{
  position:sticky; top:0; z-index:20;
  background:rgba(255,255,255,.85);
  backdrop-filter:saturate(180%) blur(12px);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--border);
}
.nav-inner{ height:64px; display:flex; align-items:center; justify-content:space-between; gap:16px; }
.brand{ display:flex; align-items:center; gap:12px; text-decoration:none; color:var(--ink); flex-shrink:0; }
.brand-logo{ display:block; height:32px; width:auto; flex-shrink:0; }
.brand-name{ font-family:var(--font-head); font-weight:700; font-size:15px; letter-spacing:-.01em; }
.brand-name span{ color:var(--ink-3); font-weight:500; }
.nav-actions{ display:flex; align-items:center; gap:8px; }
.nav-links{ display:flex; align-items:center; gap:2px; margin-left:28px; margin-right:auto; }
.nav-link{ display:inline-flex; align-items:center; height:34px; white-space:nowrap; padding:0 12px; border-radius:8px; font-size:13.5px; font-weight:500; color:var(--ink-2); text-decoration:none; }
.nav-link:hover{ background:var(--hover); color:var(--ink); }
.nav-link[aria-current="page"]{ color:var(--ink); font-weight:600; background:var(--hover); }
@media (max-width:720px){ .nav-links{ margin-left:8px; } .nav-link{ padding:0 8px; font-size:12.5px; } }
@media (max-width:480px){
  .nav-link--hide-sm, .hide-sm{ display:none !important; }
  /* Small phones: keep logo + "HSN 2026" visible, tighten everything else in the bar */
  .nav-inner{ gap:8px; }
  .nav-links{ margin-left:2px; gap:0; }
  .nav-link{ padding:0 7px; font-size:12.5px; }
  .nav-actions{ gap:6px; }
  .nav-actions .btn-sm{ padding:0 10px; }
  .nav-actions .btn svg{ display:none; }
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:38px; padding:0 16px; border-radius:10px;
  font-size:13.5px; font-weight:600; text-decoration:none; white-space:nowrap;
  border:1px solid transparent; cursor:pointer;
  transition:background-color .15s ease, border-color .15s ease, color .15s ease, box-shadow .15s ease, transform .15s ease;
}
.btn svg{ width:16px; height:16px; }
.btn-primary{ background:var(--accent); color:var(--accent-ink); }
.btn-primary:hover{ background:var(--accent-hover); }
.btn-primary:active{ transform:translateY(1px); }
.btn-primary:disabled{ background:#D1D5DB; color:#fff; cursor:not-allowed; }
.btn-ghost{ background:var(--surface); color:var(--ink); border-color:var(--border); }
.btn-ghost:hover{ background:var(--hover); }
.btn-sm{ height:32px; padding:0 12px; font-size:12.5px; border-radius:8px; }
.btn-lg{ height:46px; padding:0 22px; font-size:14.5px; }
.btn-block{ width:100%; }

/* ---------- Eyebrow / headings ---------- */
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:12px; font-weight:600; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-2);
  padding:5px 12px; border:1px solid var(--border); border-radius:999px; background:var(--surface);
}
.eyebrow .dot{ width:6px; height:6px; border-radius:50%; background:var(--accent); }

/* ---------- Cards ---------- */
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:24px;
  transition:box-shadow .2s ease, border-color .2s ease;
  min-width:0;
}
.card:hover{ border-color:var(--border-strong); }
.card--main{ border-color:var(--ink); }
.card-head{ display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:4px; }
.card-title{ font-family:var(--font-head); font-size:15px; font-weight:600; color:var(--ink); letter-spacing:-.01em; }
.card-sub{ font-size:13px; color:var(--ink-2); margin-bottom:18px; }
.card-label{ font-size:12px; font-weight:600; letter-spacing:.06em; text-transform:uppercase; color:var(--ink-2); }

/* ---------- Badges / pills ---------- */
.badge{
  display:inline-flex; align-items:center; gap:5px;
  font-size:11.5px; font-weight:600; line-height:1;
  padding:5px 9px; border-radius:999px; border:1px solid var(--border); background:var(--bg-subtle); color:var(--ink-2);
  white-space:nowrap;
}
.badge svg{ width:12px; height:12px; }
.badge--ok{ color:var(--ok); background:var(--ok-bg); border-color:var(--ok-border); }
.badge--warn{ color:var(--warn); background:var(--warn-bg); border-color:var(--warn-border); }
.badge--dark{ color:#fff; background:var(--ink); border-color:var(--ink); }
.badge--blue{ color:#fff; background:var(--accent); border-color:var(--accent); }

/* ---------- Forms ---------- */
.field{ display:flex; flex-direction:column; gap:7px; }
.field + .field{ margin-top:18px; }
.label{ font-size:13px; font-weight:600; color:var(--ink); display:flex; align-items:center; justify-content:space-between; gap:8px; }
.hint{ font-size:12.5px; color:var(--ink-2); }
.input, .select{
  width:100%; height:44px; padding:0 14px;
  font:inherit; font-size:14px; color:var(--ink);
  background:var(--surface); border:1px solid var(--border); border-radius:10px;
  transition:border-color .15s ease, box-shadow .15s ease;
  appearance:none; -webkit-appearance:none;
}
.select{
  padding-right:40px; cursor:pointer;
  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='%2352525B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat; background-position:right 14px center;
}
.input::placeholder{ color:var(--ink-3); }
.input:hover, .select:hover{ border-color:var(--border-strong); }
.input:focus, .select:focus{ outline:none; border-color:var(--accent); box-shadow:0 0 0 3px rgba(0,85,255,.12); }
.input[readonly], .input:disabled{ background:var(--bg-subtle); color:var(--ink-2); cursor:not-allowed; }

.locked{ position:relative; }
.locked .input{ padding-left:40px; font-weight:600; color:var(--ink); }
.locked svg{ position:absolute; left:14px; top:50%; width:16px; height:16px; transform:translateY(-50%); color:var(--ink-2); }

/* ---------- Alerts ---------- */
.alert{
  display:flex; gap:10px; align-items:flex-start;
  padding:12px 14px; border-radius:10px; font-size:13px; line-height:1.5;
  border:1px solid var(--border); background:var(--bg-subtle); color:var(--ink);
}
.alert svg{ width:16px; height:16px; flex-shrink:0; margin-top:2px; }
.alert--error{ background:var(--danger-bg); border-color:var(--danger-border); color:#991B1B; }
.alert--ok{ background:var(--accent-soft); border-color:var(--accent-border); color:#0039AD; }
.alert[hidden]{ display:none; }

/* ---------- Spinner ---------- */
.spinner{
  width:18px; height:18px; border-radius:50%;
  border:2px solid rgba(255,255,255,.35); border-top-color:#fff;
  animation:spin .7s linear infinite;
}
.spinner--dark{ border-color:var(--border); border-top-color:var(--accent); }
@keyframes spin{ to{ transform:rotate(360deg); } }

/* ---------- Footer ---------- */
.site-footer{ border-top:1px solid var(--border); margin-top:64px; }
.site-footer .container{ padding-top:24px; padding-bottom:32px; display:flex; flex-wrap:wrap; justify-content:space-between; gap:12px; font-size:12.5px; color:var(--ink-2); }
.site-footer b{ color:var(--ink); font-weight:600; }

[hidden]{ display:none !important; }
.sr-only{ position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }

@media (max-width:600px){
  .container{ padding:0 16px; }
  .card{ padding:18px; border-radius:14px; }
  .nav-inner{ height:58px; }
  .brand{ gap:8px; }
  .brand-logo{ height:28px; }
  .brand-name{ font-size:14px; white-space:nowrap; }
}

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

/* ---------- AddPlus "Assistive Touch" widget (assets/assistive.js) ---------- */
.ap-fab{
  position:fixed; z-index:9999; left:0; top:0;
  width:52px; height:52px; padding:0; border-radius:50%;
  display:grid; place-items:center;
  background:#fff; border:1px solid var(--border);
  box-shadow:0 1px 2px rgba(9,9,11,.06), 0 8px 20px -6px rgba(9,9,11,.22);
  cursor:grab; touch-action:none; user-select:none; -webkit-user-select:none; -webkit-tap-highlight-color:transparent;
  opacity:.92;
  transition:opacity .2s ease, box-shadow .2s ease, transform .2s ease;
}
.ap-fab:hover, .ap-fab[aria-expanded="true"]{ opacity:1; box-shadow:0 1px 2px rgba(9,9,11,.06), 0 12px 28px -8px rgba(9,9,11,.30); }
.ap-fab:active{ transform:scale(.96); }
.ap-fab.is-dragging{ cursor:grabbing; opacity:1; transform:scale(1.06); transition:opacity .2s ease, transform .2s ease; }
.ap-fab.is-snapping{ transition:left .28s cubic-bezier(.16,1,.3,1), top .28s cubic-bezier(.16,1,.3,1), opacity .2s ease; }
.ap-fab:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; }
.ap-fab img{ width:70%; height:70%; object-fit:contain; pointer-events:none; -webkit-user-drag:none; }
.ap-fab .ap-mono{ font-family:var(--font-head); font-weight:700; font-size:16px; letter-spacing:-.04em; color:var(--ink); pointer-events:none; }
.ap-fab .ap-mono b{ color:var(--accent); }

.ap-card{
  position:fixed; z-index:9999; left:0; top:0;
  width:min(320px, calc(100vw - 24px));
  padding:18px;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:saturate(180%) blur(16px); backdrop-filter:saturate(180%) blur(16px);
  border:1px solid var(--border); border-radius:16px;
  box-shadow:0 1px 2px rgba(9,9,11,.04), 0 24px 48px -16px rgba(9,9,11,.22);
  color:var(--ink-2);
  opacity:0; transform:scale(.96) translateY(6px); pointer-events:none; visibility:hidden;
  transition:opacity .18s ease, transform .22s cubic-bezier(.16,1,.3,1), visibility 0s linear .22s;
}
.ap-card.is-open{ opacity:1; transform:none; pointer-events:auto; visibility:visible; transition:opacity .18s ease, transform .22s cubic-bezier(.16,1,.3,1), visibility 0s; }
.ap-card-top{ display:flex; align-items:center; justify-content:space-between; gap:10px; margin-bottom:14px; }
.ap-brand{ display:flex; align-items:center; gap:10px; }
.ap-brand-logo{ width:36px; height:36px; border-radius:10px; border:1px solid var(--border); background:#fff; display:grid; place-items:center; overflow:hidden; }
.ap-brand-logo img{ width:76%; height:76%; object-fit:contain; }
.ap-eyebrow{ font-size:11px; font-weight:600; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-2); }
.ap-eyebrow span{ display:inline-flex; align-items:center; gap:5px; color:var(--accent); }
.ap-close{ width:30px; height:30px; border:0; border-radius:8px; background:transparent; color:var(--ink-3); display:grid; place-items:center; cursor:pointer; }
.ap-close:hover{ background:var(--hover); color:var(--ink); }
.ap-close svg{ width:15px; height:15px; }
.ap-title{ font-family:var(--font-head); font-size:18px; font-weight:700; line-height:1.25; letter-spacing:-.02em; color:var(--ink); margin:0 0 8px; }
.ap-title strong{ color:var(--accent); font-weight:700; }
.ap-body{ font-size:13px; line-height:1.6; color:var(--ink-2); margin:0 0 16px; }
.ap-cta{
  display:flex; align-items:center; justify-content:center; gap:8px; width:100%; height:42px;
  border-radius:10px; background:var(--accent); color:#fff; text-decoration:none; font-size:13.5px; font-weight:600;
  transition:background-color .15s ease, gap .2s ease, box-shadow .2s ease;
}
.ap-cta:hover{ background:var(--accent-hover); gap:12px; box-shadow:0 8px 20px -10px rgba(0,85,255,.6); }
.ap-cta svg{ width:15px; height:15px; }
.ap-foot{ margin-top:10px; text-align:center; font-size:11px; color:var(--ink-3); }

@media (max-width:600px){ .ap-fab{ width:48px; height:48px; } }
@media print{ .ap-fab, .ap-card{ display:none !important; } }