/*
Theme Name: checker
*/

:root {
  --ink:       #0B0E16;
  --panel:     #141926;
  --panel-2:   #1B2233;
  --line:      #262E40;
  --line-soft: rgba(255,255,255,.07);
  --text:      #E7EAF3;
  --muted:     #8A93A8;
  --violet:    #6D5EF6;
  --violet-2:  #8B7DFF;
  --mint:      #34E5A4;
  --amber:     #F5B544;
  --red:       #FB6B6B;

  --r:   12px;
  --r-sm: 8px;
  --maxw: 1080px;

  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Space Grotesk", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

  --glow: 0 12px 34px rgba(109,94,246,.30);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background:
    radial-gradient(62% 48% at 50% -12%, rgba(109,94,246,.20), transparent 70%),
    radial-gradient(38% 40% at 92% 6%, rgba(52,229,164,.09), transparent 70%),
    var(--ink);
  background-attachment: fixed;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
/* faint technical grid */
body::before {
  content: "";
  position: fixed; inset: 0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(80% 60% at 50% 0%, #000, transparent 75%);
  pointer-events: none;
  z-index: 0;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--violet-2); text-decoration: none; }
a:hover { color: #fff; }

h1, h2, h3 {
  font-family: var(--sans);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin: 0 0 .5em;
}
p { margin: 0 0 1rem; }

.ck-wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 22px;
  position: relative;
  z-index: 1;
}

.ck-tag {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--violet-2);
  display: inline-flex; align-items: center; gap: .6rem;
}
.ck-tag::before { content: "//"; color: var(--mint); }

/* ---------- Buttons ---------- */
.ck-btn {
  font-family: var(--sans);
  font-weight: 600;
  font-size: .98rem;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  padding: 13px 20px;
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  transition: transform .12s ease, box-shadow .2s ease, background .2s ease, border-color .2s;
}
.ck-btn--primary {
  background: linear-gradient(180deg, var(--violet-2), var(--violet));
  color: #fff;
  box-shadow: var(--glow);
}
.ck-btn--primary:hover { transform: translateY(-1px); box-shadow: 0 16px 40px rgba(109,94,246,.42); color: #fff; }
.ck-btn--primary:active { transform: translateY(0); }
.ck-btn--full { width: 100%; }
.ck-btn--line {
  background: transparent; color: var(--text);
  border-color: var(--line);
}
.ck-btn--line:hover { border-color: var(--violet); color: #fff; }

/* ---------- Top bar ---------- */
.ck-bar {
  position: sticky; top: 0; z-index: 40;
  background: rgba(11,14,22,.72);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.ck-bar__row {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.ck-logo { display: inline-flex; align-items: center; gap: 11px; }
.ck-logo:hover { color: var(--text); }
.ck-logo__name { font-weight: 700; font-size: 1.18rem; letter-spacing: -0.02em; color: var(--text); }
.ck-logo__name b { color: var(--violet-2); font-weight: 700; }
.ck-logo__247 { font-family: var(--mono); color: var(--mint); }

.ck-nav { display: flex; align-items: center; gap: 26px; }
.ck-nav__link {
  font-family: var(--mono);
  font-size: .82rem; letter-spacing: .04em;
  color: var(--muted); text-transform: lowercase;
}
.ck-nav__link:hover, .ck-nav__link[aria-current="page"] { color: var(--text); }
.ck-nav__link[aria-current="page"] { color: var(--mint); }

.ck-status-pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: .74rem; color: var(--mint);
  border: 1px solid rgba(52,229,164,.35);
  background: rgba(52,229,164,.07);
  padding: 6px 12px; border-radius: 999px;
}
.ck-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 0 rgba(52,229,164,.6); animation: pulse 2s infinite; }
@keyframes pulse { 0%{box-shadow:0 0 0 0 rgba(52,229,164,.55);} 70%{box-shadow:0 0 0 7px rgba(52,229,164,0);} 100%{box-shadow:0 0 0 0 rgba(52,229,164,0);} }

.ck-burger {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--line); border-radius: var(--r-sm);
  background: var(--panel); cursor: pointer;
  color: var(--text);
  align-items: center; justify-content: center;
}
.ck-burger svg { width: 22px; height: 22px; }

/* ---------- Hero ---------- */
.ck-hero { padding: 84px 0 64px; text-align: center; }
.ck-hero__tag { margin-bottom: 22px; }
.ck-hero h1 {
  font-size: clamp(2.3rem, 5.4vw, 3.7rem);
  max-width: 16ch; margin-inline: auto;
}
.ck-hero h1 em { font-style: normal; color: var(--violet-2); }
.ck-hero__lead {
  color: var(--muted);
  font-size: 1.12rem;
  max-width: 56ch; margin: 18px auto 0;
}

/* ---------- Checker panel ---------- */
.ck-card {
  margin: 40px auto 0;
  max-width: 560px;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: 0 30px 80px rgba(0,0,0,.45);
  overflow: hidden;
  text-align: left;
}
.ck-card__bar {
  display: flex; align-items: center; gap: 10px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.02);
}
.ck-card__lights { display: flex; gap: 6px; }
.ck-card__lights i { width: 11px; height: 11px; border-radius: 50%; display: block; }
.ck-card__lights i:nth-child(1){ background:#ff5f57; }
.ck-card__lights i:nth-child(2){ background: var(--amber); }
.ck-card__lights i:nth-child(3){ background: var(--mint); }
.ck-card__file { font-family: var(--mono); font-size: .8rem; color: var(--muted); }
.ck-card__lock { margin-left: auto; color: var(--mint); display: inline-flex; }

.ck-form { padding: 22px 22px 24px; }

.ck-field { margin-bottom: 15px; }
.ck-field__label {
  display: block;
  font-family: var(--mono);
  font-size: .72rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 7px;
}
.ck-field__label span { color: #5d6678; text-transform: none; letter-spacing: 0; }

.ck-input {
  width: 100%;
  font-family: var(--mono); font-size: .96rem;
  color: var(--text);
  background: #0E1320;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 12px 14px;
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.ck-input::placeholder { color: #4d566b; }
.ck-input:focus {
  outline: none;
  border-color: var(--violet);
  box-shadow: 0 0 0 3px rgba(109,94,246,.22);
  background: #0c111d;
}

select.ck-input:focus {
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%238A93A8' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E") no-repeat #0c111d;
  background-position: right 12px center;
}

.ck-row { display: grid; grid-template-columns: 1fr 118px; gap: 10px; }
.ck-row--2 { grid-template-columns: 1fr 1fr; gap: 12px; }

select.ck-input {
  appearance: none; -webkit-appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%238A93A8' stroke-width='2.5' 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 12px center; padding-right: 34px;
}

.ck-err {
  display: none;
  font-family: var(--mono); font-size: .76rem; color: var(--red);
  margin-top: 6px;
}
.ck-err::before { content: "! "; }
.ck-field.is-bad .ck-input { border-color: var(--red); box-shadow: 0 0 0 3px rgba(251,107,107,.16); }
.ck-field.is-bad .ck-err { display: block; }
.ck-field.is-ok .ck-input { border-color: rgba(52,229,164,.45); }

.ck-note {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: .74rem; color: var(--muted);
  margin-top: 4px;
}
.ck-note svg { color: var(--mint); flex: none; }

/* console-style result */
.ck-out {
  display: none;
  margin: 16px 22px 22px;
  font-family: var(--mono); font-size: .82rem;
  background: #07090f;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 14px 16px;
  color: #b9c2d6;
}
.ck-out.is-on { display: block; }
.ck-out__line { white-space: pre-wrap; opacity: 0; transform: translateY(4px); }
.ck-out__line.in { opacity: 1; transform: none; transition: opacity .25s, transform .25s; }
.ck-out__line b { color: var(--text); }
.ck-out__ok { color: var(--mint); }
.ck-out__arrow { color: var(--violet-2); }

/* trust chips */
.ck-chips {
  display: flex; flex-wrap: wrap; gap: 10px 14px; justify-content: center;
  margin-top: 26px;
}
.ck-chip {
  font-family: var(--mono); font-size: .76rem; color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 6px 13px;
  display: inline-flex; align-items: center; gap: 7px;
}
.ck-chip svg { color: var(--mint); }

/* ---------- Sections ---------- */
.ck-sec { padding: 70px 0; position: relative; z-index: 1; }
.ck-sec__head { max-width: 620px; margin: 0 auto 44px; text-align: center; }
.ck-sec__head h2 { font-size: clamp(1.7rem, 3.2vw, 2.3rem); }
.ck-sec__head p { color: var(--muted); margin: 0; }

/* metrics */
.ck-metrics {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r); overflow: hidden;
}
.ck-metric { background: var(--panel); padding: 26px 22px; text-align: center; }
.ck-metric__n { font-family: var(--mono); font-size: 1.9rem; font-weight: 600; color: var(--mint); }
.ck-metric__n.violet { color: var(--violet-2); }
.ck-metric__l { color: var(--muted); font-size: .85rem; margin-top: 6px; }

/* flow pipeline */
.ck-flow {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  border: 1px solid var(--line); border-radius: var(--r);
  background: var(--panel); overflow: hidden;
}
.ck-node { padding: 28px 24px; position: relative; }
.ck-node + .ck-node { border-left: 1px dashed var(--line); }
.ck-node__icon {
  width: 60px; height: 60px; border-radius: 10px;
  display: grid; place-items: center; color: var(--mint);
  margin: 12px 20px 14px 0;
  float: left;
}
.ck-node h3 { font-size: 1.08rem; margin: 0 0 6px; }
.ck-node p { color: var(--muted); font-size: .9rem; margin: 0; }

/* status legend */
.ck-legend { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.ck-state {
  border: 1px solid var(--line); border-radius: var(--r);
  background: var(--panel); padding: 22px;
}
.ck-state__top { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.ck-state__dot { width: 10px; height: 10px; border-radius: 50%; }
.ck-state__name { font-family: var(--mono); font-size: .82rem; letter-spacing: .06em; text-transform: uppercase; }
.ck-state p { color: var(--muted); font-size: .9rem; margin: 0; }
.is-cleared .ck-state__dot { background: var(--mint); } .is-cleared .ck-state__name { color: var(--mint); }
.is-pending .ck-state__dot { background: var(--amber); } .is-pending .ck-state__name { color: var(--amber); }
.is-declined .ck-state__dot { background: var(--red); } .is-declined .ck-state__name { color: var(--red); }

/* CTA terminal band */
.ck-cta {
  border: 1px solid var(--line);
  border-radius: var(--r);
  background:
    radial-gradient(70% 120% at 0% 0%, rgba(109,94,246,.16), transparent 60%),
    var(--panel);
  padding: 38px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.ck-cta__prompt { font-family: var(--mono); color: var(--mint); font-size: .82rem; margin-bottom: 8px; }
.ck-cta h2 { font-size: 1.6rem; margin: 0 0 6px; }
.ck-cta p { color: var(--muted); margin: 0; max-width: 48ch; }

/* ---------- Footer ---------- */
.ck-foot {
  border-top: 1px solid var(--line);
  margin-top: 20px;
  padding: 30px 0;
  position: relative; z-index: 1;
}
.ck-foot__row {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.ck-foot__links { display: flex; gap: 22px; flex-wrap: wrap; }
.ck-foot__links a { font-family: var(--mono); font-size: .8rem; color: var(--muted); }
.ck-foot__links a:hover { color: var(--text); }
.ck-foot__meta { font-family: var(--mono); font-size: .76rem; color: #5d6678; display: inline-flex; align-items: center; gap: 8px; }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .ck-status-pill { display: none; }
  .ck-burger { display: inline-flex; }
  .ck-nav {
    position: absolute; top: 68px; right: 12px; left: 12px;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--panel-2);
    border: 1px solid var(--line); border-radius: var(--r);
    padding: 8px; box-shadow: 0 24px 50px rgba(0,0,0,.5);
    display: none;
  }
  .ck-nav.is-open { display: flex; }
  .ck-nav__link { padding: 13px 12px; border-radius: var(--r-sm); font-size: .95rem; }
  .ck-nav__link:hover { background: rgba(255,255,255,.04); }

  .ck-metrics { grid-template-columns: repeat(2, 1fr); }
  .ck-flow, .ck-legend { grid-template-columns: 1fr; }
  .ck-node + .ck-node { border-left: 0; border-top: 1px dashed var(--line); }
  .ck-cta { padding: 28px 22px; }
}
@media (max-width: 440px) {
  .ck-row--2 { grid-template-columns: 1fr; }
  .ck-metrics { grid-template-columns: 1fr; }
  .ck-hero { padding: 60px 0 48px; }
}

:focus-visible { outline: 2px solid var(--violet-2); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  *, body::before { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .ck-out__line { opacity: 1; transform: none; }
}