/* zerodaysecurity.org · Zero Day Security marketing site. Shares the design system with the embedded
   assessment tool (assets under /ai-assessment/assets/styles.css): dark, security-grade surfaces with
   purple/magenta/lavender accents, calm light content sections. Mobile-first. No inline styles (strict
   CSP). One small same-origin /assets/site.js handles the mobile nav. */

:root {
  --bg-900: #0B0710;
  --bg-800: #110D17;
  --bg-700: #1C1726;
  --bg-600: #271F33;
  --divider: #3F0A4D;
  --p-700: #6E1284;
  --p-500: #B81DCB;
  --lav: #C77DFF;
  --d-text: #F4F2F7;
  --d-mut: #B7B1C4;
  --d-faint: #A7A1B4;
  --l-bg: #F4F2F8;
  --l-card: #FFFFFF;
  --l-ink: #1A1622;
  --l-mut: #5C566B;
  --l-faint: #6B6578;
  --l-border: #E5E1EC;
  --l-border2: #D7D1E2;

  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 10px 40px -12px rgba(17,13,23,.5);
  --shadow-sm: 0 2px 10px -4px rgba(17,13,23,.25);
  --maxw: 1180px;
  --font: "Calibri", "Carlito", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--font); color: var(--l-ink);
  background: var(--l-bg); line-height: 1.55; overflow-x: clip;
  font-size: 16px; text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased;
}
h1,h2,h3,h4 { line-height: 1.16; font-weight: 700; margin: 0 0 .4em; letter-spacing: -.015em; }
p { margin: 0 0 1em; }
a { color: var(--p-700); }
img { max-width: 100%; }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 3px solid var(--lav); outline-offset: 2px; border-radius: 4px; }
.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; }
.skip-link { position:absolute; left:-999px; top:0; background:var(--bg-800); color:#fff; padding:10px 16px; z-index:100; border-radius:0 0 8px 0; }
.skip-link:focus { left:0; }
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

/* ---------- nav ---------- */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(17,13,23,.86); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255,255,255,.07); }
.nav__in { display: flex; align-items: center; gap: 18px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; flex: none; }
.brand img { height: 34px; width: auto; }
/* The wordmark is purple-on-transparent; invert it white on the dark nav/footer surfaces. */
.nav .brand img { filter: brightness(0) invert(1); }
.nav__links { display: flex; align-items: center; gap: 26px; margin-left: auto; }
.nav__links a { color: var(--d-mut); text-decoration: none; font-size: 14.5px; font-weight: 550; transition: color .14s; }
.nav__links a:hover, .nav__links a[aria-current="page"] { color: var(--d-text); }
.nav__cta { background: var(--p-500); color:#fff; border:0; padding: 10px 18px; border-radius: 999px; font-weight: 600; font-size: 14px; text-decoration: none; display: inline-flex; align-items: center; gap: 7px; transition: background .15s, color .15s; flex: none; }
.nav__cta:hover { background: var(--lav); color: var(--bg-900); }
.nav__toggle { display: none; margin-left: auto; background: transparent; border:1px solid rgba(255,255,255,.18); border-radius: 9px; width: 42px; height: 38px; color: var(--d-text); align-items:center; justify-content:center; }
.nav__toggle svg { display:block; }

@media (max-width: 860px) {
  .nav__toggle { display: inline-flex; }
  .nav__links {
    position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; align-items: stretch;
    gap: 0; background: var(--bg-800); border-bottom: 1px solid rgba(255,255,255,.08);
    padding: 6px 0 12px; margin: 0; box-shadow: var(--shadow);
  }
  .nav__links:not(.is-open) { display: none; }
  .nav__links a { padding: 13px 22px; border-top: 1px solid rgba(255,255,255,.05); font-size: 16px; }
  .nav__cta { display: none; }
  .nav__links .nav__cta--mobile { display: inline-flex; margin: 12px 22px 4px; justify-content: center; }
}
.nav__cta--mobile { display: none; }

/* ---------- buttons ---------- */
.btn { border:0; border-radius: 999px; font-weight: 650; font-size: 16px; padding: 14px 26px; display:inline-flex; align-items:center; gap:10px; text-decoration: none; transition: transform .08s ease, background .15s ease, box-shadow .15s, color .15s; cursor: pointer; }
.btn:active { transform: translateY(1px); }
.btn--primary { background: linear-gradient(100deg, var(--p-500), var(--lav)); color: #190a22; box-shadow: 0 8px 26px -8px rgba(184,29,203,.7); }
.btn--primary:hover { box-shadow: 0 10px 34px -6px rgba(199,125,255,.8); }
.btn--accent { background: var(--p-700); color:#fff; }
.btn--accent:hover { background: var(--p-500); }
.btn--ghost-d { background: rgba(255,255,255,.06); color: var(--d-text); border:1px solid rgba(255,255,255,.18); }
.btn--ghost-d:hover { background: rgba(255,255,255,.12); }
.btn--ghost { background: transparent; color: var(--p-700); border:1.5px solid var(--l-border2); }
.btn--ghost:hover { border-color: var(--p-500); background: #fcfaff; }
.btn--sm { padding: 10px 18px; font-size: 14.5px; }
.btn--block { width:100%; justify-content:center; }
.btnrow { display:flex; flex-wrap:wrap; gap: 14px; }

/* ---------- eyebrow + section scaffolding ---------- */
.eyebrow { display:inline-flex; align-items:center; gap:9px; font-family: var(--mono); font-size: 12px; letter-spacing:.16em; text-transform: uppercase; color: var(--p-700); border:1px solid #e0d3ef; background:#f6effb; padding:6px 13px; border-radius:999px; margin: 0 0 16px; }
.eyebrow--d { color: var(--lav); border-color: rgba(199,125,255,.32); background: rgba(199,125,255,.07); }
.eyebrow .dot { width:7px;height:7px;border-radius:50%;background:currentColor; }
.section { padding: clamp(54px, 8vw, 96px) 0; }
.section--tight { padding: clamp(40px, 6vw, 64px) 0; }
.section--alt { background: #fff; }
.section--dark { background: var(--bg-800); color: var(--d-text); }
.section__head { max-width: 720px; margin: 0 0 40px; }
.section__head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); }
.section__lead { font-size: clamp(1.05rem, 1.8vw, 1.2rem); color: var(--l-mut); }
.section--dark .section__lead { color: var(--d-mut); }
.kicker { color: var(--p-700); font-weight: 700; }

/* ---------- hero ---------- */
.hero { position: relative; background: var(--bg-800); color: var(--d-text); overflow: hidden; }
.hero::before { content:""; position:absolute; inset:0;
  background:
    radial-gradient(1100px 520px at 80% -10%, rgba(184,29,203,.30), transparent 60%),
    radial-gradient(760px 460px at 4% 6%, rgba(110,18,132,.34), transparent 62%),
    radial-gradient(900px 600px at 50% 120%, rgba(199,125,255,.10), transparent 60%);
  pointer-events:none; }
.hero__grid { position:absolute; inset:0; opacity:.05; pointer-events:none;
  background-image: linear-gradient(rgba(199,125,255,.6) 1px, transparent 1px), linear-gradient(90deg, rgba(199,125,255,.6) 1px, transparent 1px);
  background-size: 46px 46px; mask-image: radial-gradient(circle at 70% 0%, #000, transparent 72%); }
.hero__in { position: relative; z-index: 1; padding: clamp(54px, 9vw, 104px) 0 clamp(50px, 8vw, 92px); }
.hero--home .hero__in { max-width: 820px; }
.hero h1 { font-size: clamp(2.1rem, 5.4vw, 3.5rem); letter-spacing: -.03em; margin-bottom: 18px; }
.hero h1 .accent { background: linear-gradient(100deg, var(--lav), var(--p-500)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__sub { font-size: clamp(1.1rem, 2vw, 1.32rem); color: var(--d-mut); max-width: 680px; margin: 0 0 30px; }
.hero__cta { margin-top: 6px; }
.hero__trust { display:flex; flex-wrap:wrap; gap: 9px 22px; margin-top: 34px; color: var(--d-faint); font-size: 13.5px; }
.hero__trust span { display:inline-flex; align-items:center; gap:8px; }
.hero__trust svg { color: var(--lav); flex: none; }
/* inner-page hero (services/about/contact) */
.hero--page .hero__in { max-width: 760px; }
.hero--page h1 { font-size: clamp(1.9rem, 4.6vw, 2.9rem); }

/* ---------- "the shift" feature band ---------- */
.shift { display:grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 22px; }
.shift__card { background: rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.10); border-radius: var(--radius); padding: 24px; }
.shift__card h3 { font-size: 1.12rem; color: #fff; }
.shift__card p { color: var(--d-mut); margin: 0; font-size: 14.5px; }
.shift__card .num { font-family: var(--mono); color: var(--lav); font-size: 13px; letter-spacing: .1em; display:block; margin-bottom: 10px; }

/* ---------- services grid ---------- */
.cards { display:grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 20px; }
.card { background: var(--l-card); border:1px solid var(--l-border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm); display:flex; flex-direction:column; gap: 8px; text-decoration: none; color: var(--l-ink); transition: transform .1s ease, box-shadow .15s, border-color .15s; }
a.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #e0d3ef; }
.card__ic { width: 42px; height: 42px; border-radius: 11px; display:grid; place-items:center; background: linear-gradient(150deg, #f3e9fb, #fae9fc); color: var(--p-700); margin-bottom: 6px; flex:none; }
.card__ic svg { display:block; }
.card h3 { font-size: 1.12rem; margin: 0; }
.card p { color: var(--l-mut); font-size: 14px; margin: 0; }
.card__more { margin-top: auto; padding-top: 8px; color: var(--p-700); font-weight: 650; font-size: 14px; display:inline-flex; align-items:center; gap: 6px; }
.card--module { border-style: dashed; border-color: var(--l-border2); }
.card--module .card__tag { font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--l-faint); }

/* services grouped (three job clusters instead of a flat 9-card wall) */
.svc-groups { display:grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.svc-group { background: var(--l-card); border:1px solid var(--l-border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm); display:flex; flex-direction:column; }
.svc-group__label { font-family: var(--mono); font-size: 12px; letter-spacing:.12em; text-transform: uppercase; color: var(--p-700); font-weight: 700; }
.svc-group__desc { color: var(--l-mut); font-size: 13.5px; margin: 6px 0 8px; }
.svc-row { display:block; text-decoration:none; color: inherit; padding: 13px 0; border-top:1px solid var(--l-border); transition: padding-left .12s; }
.svc-row:first-of-type { border-top:0; }
.svc-row:hover { padding-left: 5px; }
.svc-row b { display:block; font-size: 15px; color: var(--l-ink); }
.svc-row b .arr { color: var(--p-500); opacity:0; transition: opacity .12s; }
.svc-row:hover b { color: var(--p-700); } .svc-row:hover .arr { opacity:1; }
.svc-row span { font-size: 13px; color: var(--l-mut); }
.svcs-cta { margin-top: 26px; }
@media (max-width: 820px) { .svc-groups { grid-template-columns: 1fr; } }

/* ---------- audience sections ---------- */
.aud { border-top: 1px solid var(--l-border); padding: clamp(40px, 6vw, 64px) 0; scroll-margin-top: 78px; }
.aud:first-of-type { border-top: 0; }
.aud__grid { display:grid; grid-template-columns: .9fr 1.1fr; gap: clamp(24px, 4vw, 56px); align-items: start; }
.aud__who .eyebrow { margin-bottom: 14px; }
.aud__who h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
.aud__who p { color: var(--l-mut); }
.aud__what { background: var(--l-card); border:1px solid var(--l-border); border-radius: var(--radius); padding: clamp(22px, 3vw, 30px); box-shadow: var(--shadow-sm); }
.aud__what h3 { font-size: 1rem; text-transform: uppercase; letter-spacing: .04em; color: var(--p-700); margin-bottom: 14px; font-size: .82rem; }
.checklist { list-style: none; padding: 0; margin: 0 0 18px; display:flex; flex-direction:column; gap: 11px; }
.checklist li { display:flex; gap: 11px; align-items:flex-start; font-size: 14.5px; }
.checklist li svg { color: var(--p-500); flex:none; margin-top: 3px; }
@media (max-width: 800px) { .aud__grid { grid-template-columns: 1fr; gap: 20px; } }

/* ---------- lead-magnet band ---------- */
.magnet { background-color: var(--bg-800); background-image: linear-gradient(135deg, var(--bg-800), #20122c); color: var(--d-text); border-radius: 20px; padding: clamp(28px, 5vw, 52px); display:grid; grid-template-columns: 1.3fr 1fr; gap: clamp(24px, 4vw, 48px); align-items:center; position:relative; overflow:hidden; box-shadow: var(--shadow); }
.magnet::before { content:""; position:absolute; inset:0; background: radial-gradient(560px 320px at 88% 10%, rgba(199,125,255,.28), transparent 62%); pointer-events:none; }
.magnet__in { position: relative; z-index:1; }
.magnet h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); }
.magnet p { color: var(--d-mut); margin-bottom: 22px; }
.magnet__art { position: relative; z-index:1; }
.magnet__list { list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap: 12px; }
.magnet__list li { display:flex; gap:11px; align-items:flex-start; font-size: 14.5px; color: var(--d-text); }
.magnet__list svg { color: var(--lav); flex:none; margin-top:3px; }
@media (max-width: 760px) { .magnet { grid-template-columns: 1fr; } }

/* ---------- approach / steps ---------- */
.steps { display:grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 22px; counter-reset: step; }
.step { position: relative; padding-top: 8px; }
.step__n { font-family: var(--mono); font-weight: 700; color: var(--p-500); font-size: 13px; letter-spacing: .1em; display:block; margin-bottom: 8px; }
/* On dark surfaces, magenta dips below AA contrast; lavender clears it. */
.section--dark .step__n { color: var(--lav); }
.step h3 { font-size: 1.12rem; }
.step p { color: var(--l-mut); font-size: 14.5px; margin: 0; }
.section--dark .step p { color: var(--d-mut); }
.section--dark .step h3 { color: #fff; }

/* ---------- framework chips ---------- */
.chips { display:flex; flex-wrap:wrap; gap: 10px; margin-top: 6px; }
.chip { font-family: var(--mono); font-size: 12px; letter-spacing: .04em; padding: 7px 13px; border-radius: 999px; border:1px solid var(--l-border2); background:#fff; color: var(--l-mut); }
.section--dark .chip { border-color: rgba(255,255,255,.16); background: rgba(255,255,255,.04); color: var(--d-mut); }

/* ---------- CTA band ---------- */
.cta { text-align:center; }
.cta h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); }
.cta p { color: var(--d-mut); max-width: 600px; margin: 0 auto 26px; font-size: 1.08rem; }
.cta .btnrow { justify-content:center; }

/* ---------- service detail (services page) ---------- */
.svc { border-top: 1px solid var(--l-border); padding: clamp(36px, 5vw, 56px) 0; scroll-margin-top: 78px; }
.svc__grid { display:grid; grid-template-columns: .8fr 1.2fr; gap: clamp(22px, 4vw, 52px); align-items:start; }
.svc__label { position: sticky; top: 90px; }
.svc__label .eyebrow { margin-bottom: 12px; }
.svc__label h2 { font-size: clamp(1.4rem, 2.6vw, 1.9rem); }
.svc__label p { color: var(--l-mut); font-size: 14.5px; }
.svc__body h3 { font-size: 1rem; color: var(--p-700); margin-top: 18px; }
.svc__body h3:first-child { margin-top: 0; }
.svc__body p { color: var(--l-mut); }
.svc__body .checklist { margin-bottom: 0; }
.svc__body .checklist li { color: var(--l-ink); }
@media (max-width: 800px) { .svc__grid { grid-template-columns: 1fr; gap: 18px; } .svc__label { position: static; } }

/* removable vendor-eval module: a soft fence so it reads as self-contained */
.module-fence { border: 1px dashed var(--p-500); border-radius: var(--radius); background: linear-gradient(180deg, #fbf6ff, #fff); padding: clamp(22px, 3vw, 34px); }
.module-fence .module__tag { display:inline-block; font-family: var(--mono); font-size: 11px; letter-spacing:.08em; text-transform:uppercase; color: var(--p-700); border:1px solid #e0d3ef; border-radius:999px; padding: 4px 11px; margin-bottom: 14px; }
.layer-table { width:100%; border-collapse: collapse; margin: 14px 0; font-size: 13.5px; }
.layer-table th, .layer-table td { border:1px solid var(--l-border2); padding: 9px 11px; text-align:left; vertical-align: top; }
.layer-table thead th { background: var(--p-700); color:#fff; font-weight: 600; }
.layer-table td:first-child { font-weight: 600; white-space: nowrap; }

/* ---------- forms ---------- */
.formcard { background: var(--l-card); border:1px solid var(--l-border); border-radius: var(--radius); padding: clamp(24px, 4vw, 36px); box-shadow: var(--shadow-sm); }
.field { margin-bottom: 16px; }
.field label { display:block; font-weight: 600; font-size: 14px; margin-bottom: 6px; }
.field label .req { color: #c8102e; }
.field input, .field textarea, .field select { width:100%; min-height: 48px; padding: 11px 14px; border:1px solid var(--l-border2); border-radius: 10px; font-size: 16px; font-family: inherit; background:#fff; color: var(--l-ink); }
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--p-500); outline: 2px solid rgba(199,125,255,.32); outline-offset: 0; }
.field .err { font-size: 12.5px; color: #c8102e; margin-top: 5px; display:none; }
.field.invalid .err { display:block; }
.field.invalid input, .field.invalid textarea { border-color: #c8102e; }
.field-pair { display:grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 560px) { .field-pair { grid-template-columns: 1fr; } }
.consent { display:flex; gap:10px; align-items:flex-start; font-weight:500; font-size:13.5px; color: var(--l-mut); }
.consent input { width:20px; height:20px; min-height:0; margin-top:2px; flex:none; accent-color: var(--p-500); }
.consent a { color: var(--p-700); }
.form-note { font-size: 12.5px; color: var(--l-faint); margin-top: 8px; }
.form-ok { display:none; background: #ddf2e6; border:1px solid #bfe6cf; color: #0e5132; border-radius: 10px; padding: 16px; }
.form-ok.show { display:block; }
.contact-aside { display:flex; flex-direction:column; gap: 18px; }
.contact-aside .ca { background:#fff; border:1px solid var(--l-border); border-radius: var(--radius); padding: 20px; }
.contact-aside .ca h3 { font-size: 1rem; margin-bottom: 4px; }
.contact-aside .ca a { color: var(--p-700); font-weight: 600; text-decoration: none; }
.contact-aside .ca a:hover { text-decoration: underline; }
.contact-aside .ca p { color: var(--l-mut); font-size: 14px; margin: 0; }
.contact-grid { display:grid; grid-template-columns: 1.4fr 1fr; gap: clamp(22px, 4vw, 44px); align-items:start; }
@media (max-width: 820px) { .contact-grid { grid-template-columns: 1fr; } }

/* ---------- generic prose (about, legal) ---------- */
.prose { max-width: 740px; }
.prose h2 { font-size: 1.5rem; margin-top: 36px; }
.prose h3 { font-size: 1.12rem; margin-top: 24px; color: var(--p-700); }
.prose p, .prose li { color: var(--l-mut); }
.prose ul { padding-left: 20px; } .prose li { margin-bottom: 8px; }
.lead-p { font-size: 1.2rem; color: var(--l-ink); }

/* ---------- footer ---------- */
.foot { background: var(--bg-900); color: var(--d-mut); padding: clamp(44px, 6vw, 64px) 0 36px; }
.foot__top { display:grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 36px; padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,.08); }
.foot__brand img { height: 40px; filter: brightness(0) invert(1); }
.foot__tag { color: var(--d-faint); font-size: 14px; margin-top: 14px; max-width: 320px; }
.foot__col h4 { color: var(--d-text); font-size: 13px; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 14px; }
.foot__col a { display:block; color: var(--d-mut); text-decoration: none; font-size: 14.5px; margin-bottom: 10px; }
.foot__col a:hover { color: var(--d-text); }
.foot__bot { display:flex; flex-wrap:wrap; gap: 12px 24px; justify-content: space-between; padding-top: 24px; color: var(--d-faint); font-size: 12.5px; }
.foot__bot a { color: var(--d-faint); }
@media (max-width: 720px) { .foot__top { grid-template-columns: 1fr 1fr; } .foot__brand { grid-column: 1 / -1; } }
@media (max-width: 460px) { .foot__top { grid-template-columns: 1fr; } }

/* ---------- FAQ (native details accordion, no JS) ---------- */
.faq { max-width: 820px; }
.faq__item { border:1px solid var(--l-border); border-radius: var(--radius-sm); background:#fff; margin-bottom: 12px; box-shadow: var(--shadow-sm); overflow: hidden; }
.faq__item summary { cursor:pointer; list-style:none; padding: 18px 22px; font-weight: 650; font-size: 1.05rem; color: var(--l-ink); display:flex; align-items:center; gap: 14px; }
.faq__item summary::-webkit-details-marker { display:none; }
.faq__item summary::after { content:"+"; margin-left:auto; color: var(--p-500); font-size: 1.5rem; line-height:1; font-weight: 400; transition: transform .2s; flex:none; }
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item summary:hover { color: var(--p-700); }
.faq__a { padding: 0 22px 18px; }
.faq__a p { margin: 0; color: var(--l-mut); }

/* ---------- 404 ---------- */
.nf { text-align:center; max-width: 580px; margin: 0 auto; padding: clamp(56px, 11vw, 116px) 0; }
.nf img { height: 46px; margin-bottom: 24px; }
.nf h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.nf p { color: var(--l-mut); font-size: 1.08rem; }
.nf .btnrow { justify-content:center; margin-top: 24px; }
.nf__contact { margin-top: 28px; }

@media (prefers-reduced-motion: reduce) { * { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto; } }