/* ============================================================
   NeuriQiz™ — stylesheet
   Theme: matched to eligos.io / EligOS™ — clean, bright SaaS
   aesthetic. Bold sans-serif type, a blue + teal two-tone accent
   system, pill-shaped eyebrow badges, rounded cards with icon
   chips, and rounded solid-fill buttons.
   ============================================================ */

:root{
  --ink: #0F172A;
  --ink-soft: #364152;
  --paper: #F7F9FC;
  --paper-raised: #FFFFFF;

  --blue: #1A6FD4;
  --blue-deep: #14509E;
  --blue-pale: #E8F0FE;

  --teal: #0D8C6E;
  --teal-deep: #0A6E56;
  --teal-pale: #E8F4F1;

  --signal: #C0392B;
  --signal-pale: #FBEAE8;

  --slate: #5C6878;
  --line: #E3E8F0;

  --display: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --max: 1180px;
  --pad: clamp(1.25rem, 4vw, 3rem);
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img{ max-width: 100%; display: block; }
a{ color: inherit; }

h1, h2, h3, h4{
  font-family: var(--display);
  font-weight: 800;
  line-height: 1.14;
  margin: 0 0 0.5em;
  color: var(--ink);
  letter-spacing: -0.02em;
}
h1{ font-size: clamp(2.3rem, 5vw, 3.8rem); }
h2{ font-size: clamp(1.6rem, 3.2vw, 2.3rem); }
h3{ font-size: clamp(1.1rem, 2vw, 1.4rem); font-weight: 700; }

p{ margin: 0 0 1em; color: var(--slate); }

.eyebrow{
  font-family: var(--body);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0;
  text-transform: none;
  color: var(--teal-deep);
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  padding: 0.5em 1.1em;
  border-radius: 999px;
  background: var(--teal-pale);
  border: 1px solid rgba(13,140,110,0.25);
  margin-bottom: 1.3em;
}
.eyebrow::before{
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--teal);
  display: inline-block;
  flex-shrink: 0;
}

.container{
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

/* ---------- Signal spine (disabled to match the flatter SaaS look) ---------- */
.signal-spine{ display: none; }

/* ---------- List styling (simple, no connecting branch line) ---------- */
.node-list{ list-style: none; margin: 0 0 1.4em; padding: 0; }
.node-list li{
  position: relative;
  padding-left: 1.7em;
  margin-bottom: 0.7em;
  color: var(--slate);
}
.node-list li::before{
  content: "";
  position: absolute;
  left: 0; top: 0.5em;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--teal);
}
.node-list.down li::before{ background: var(--signal); }

/* ---------- Header / nav ---------- */
header.site{
  position: sticky; top: 0; z-index: 40;
  background: rgba(247,249,252,0.92);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-row{
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 1rem; padding-bottom: 1rem;
}
.brand{
  display: flex; align-items: center;
  text-decoration: none;
}
.brand img{ height: 34px; width: auto; }

nav.primary ul{
  list-style: none; display: flex; gap: 2.1rem; margin: 0; padding: 0;
}
nav.primary a{
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-soft);
  position: relative;
  padding-bottom: 4px;
}
nav.primary a::after{
  content: ""; position: absolute; left: 0; right: 100%; bottom: 0;
  height: 2px; border-radius: 2px; background: var(--blue);
  transition: right 0.25s ease;
}
nav.primary a:hover::after, nav.primary a[aria-current="page"]::after{ right: 0; }
nav.primary a[aria-current="page"]{ color: var(--blue-deep); font-weight: 700; }

.nav-toggle{
  display: none;
  background: none; border: 1px solid var(--line); border-radius: 8px;
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
  cursor: pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content: ""; display: block; width: 18px; height: 1.5px; background: var(--ink);
  position: relative; transition: transform 0.2s ease;
}
.nav-toggle span::before{ position: absolute; top: -6px; }
.nav-toggle span::after{ position: absolute; top: 6px; }

@media (max-width: 860px){
  nav.primary{
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--paper-raised);
    border-bottom: 1px solid var(--line);
    max-height: 0; overflow: hidden;
    transition: max-height 0.3s ease;
  }
  nav.primary.open{ max-height: 300px; }
  nav.primary ul{ flex-direction: column; gap: 0; padding: 0.5rem var(--pad) 1.2rem; }
  nav.primary li{ border-top: 1px solid var(--line); }
  nav.primary a{ display:block; padding: 0.9rem 0; }
  .nav-toggle{ display: flex; }
}

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex; align-items: center; gap: 0.5em;
  font-family: var(--body);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0;
  text-transform: none;
  text-decoration: none;
  padding: 0.85em 1.6em;
  border-radius: 10px;
  border: 1px solid var(--teal);
  background: var(--teal);
  color: #FFFFFF;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
  box-shadow: 0 1px 2px rgba(15,23,42,0.06);
}
.btn:hover{ background: var(--teal-deep); border-color: var(--teal-deep); transform: translateY(-1px); }
.btn.ghost{ background: #FFFFFF; color: var(--ink); border-color: var(--line); }
.btn.ghost:hover{ background: var(--paper); border-color: var(--slate); }
.btn.signal{ border-color: var(--blue); background: var(--blue); }
.btn.signal:hover{ background: var(--blue-deep); border-color: var(--blue-deep); }

/* ---------- Hero ---------- */
.hero{
  padding: clamp(3rem, 8vw, 6.5rem) 0 clamp(2.5rem, 6vw, 4rem);
}
.hero-grid{
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
@media (max-width: 900px){ .hero-grid{ grid-template-columns: 1fr; } }
.hero .lede{ font-size: 1.15rem; max-width: 46ch; color: var(--slate); }
.hero-actions{ display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 1.6rem; }
.hero-visual{ position: relative; }
.hero-visual img{ border-radius: 14px; box-shadow: 0 20px 50px -20px rgba(15,23,42,0.25); }
.no-diagnosis{
  font-family: var(--body); font-weight: 600; font-size: 0.9rem; color: var(--teal-deep);
  border-left: 3px solid var(--teal); padding-left: 0.9em; margin-top: 1.4rem;
}

/* ---------- Sections ---------- */
section{ padding: clamp(2.6rem, 6vw, 4.5rem) 0; }
.section-border-top{ border-top: 1px solid var(--line); }
.two-col{
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: start;
}
@media (max-width: 860px){ .two-col{ grid-template-columns: 1fr; } }
.two-col.reverse .col-media{ order: -1; }
@media (max-width: 860px){ .two-col.reverse .col-media{ order: 0; } }
.col-media img{ border-radius: 14px; box-shadow: 0 20px 50px -20px rgba(15,23,42,0.2); }

.card-grid{
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem;
}
@media (max-width: 860px){ .card-grid{ grid-template-columns: 1fr; } }
.card{
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.9rem 1.7rem;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover{ box-shadow: 0 16px 32px -18px rgba(15,23,42,0.18); transform: translateY(-2px); }
.card .index{
  font-family: var(--body); font-weight: 700; font-size: 0.78rem; color: var(--blue);
  letter-spacing: 0.02em; text-transform: none; display:inline-flex; align-items:center;
  padding: 0.35em 0.8em; border-radius: 999px; background: var(--blue-pale); margin-bottom: 1em;
}

.stat-row{
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 2.5rem;
}
@media (max-width: 700px){ .stat-row{ grid-template-columns: 1fr; } }

blockquote.plain{
  font-family: var(--body); font-weight: 700; font-style: normal; font-size: 1.2rem;
  color: var(--ink); border-left: 3px solid var(--blue); padding-left: 1em; margin: 1.5em 0;
}

/* ---------- Safety / notice banner ---------- */
.notice{
  background: var(--blue-pale);
  border: 1px solid rgba(26,111,212,0.25);
  border-radius: 14px;
  padding: 1.4rem 1.6rem;
  margin: 1.6rem 0;
}
.notice.urgent{
  background: var(--signal-pale);
  border-color: rgba(192,57,43,0.3);
}
.notice strong{ color: var(--blue-deep); }
.notice.urgent strong{ color: var(--signal); }

/* ---------- Forms ---------- */
.form-card{
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  box-shadow: 0 20px 50px -30px rgba(15,23,42,0.2);
}
.field{ margin-bottom: 1.1rem; display: flex; flex-direction: column; gap: 0.4em; }
.field label{
  font-family: var(--body); font-weight: 600; font-size: 0.82rem; letter-spacing: 0;
  text-transform: none; color: var(--slate);
}
.field input, .field textarea{
  font-family: var(--body); font-size: 1rem;
  padding: 0.8em 0.9em;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
}
.field input:focus, .field textarea:focus{
  outline: 2px solid var(--blue); outline-offset: 1px;
  border-color: var(--blue);
}
.form-inline{ display: flex; gap: 0.8rem; flex-wrap: wrap; }
.form-inline .field{ flex: 1 1 240px; margin-bottom: 0; }
.form-note{ font-size: 0.85rem; color: var(--slate); margin-top: 0.8em; }
.form-status{ font-family: var(--body); font-weight: 600; font-size: 0.85rem; margin-top: 0.9em; color: var(--teal-deep); min-height: 1.2em; }

/* ---------- Footer ---------- */
footer.site{
  background: var(--ink);
  color: #E7ECF5;
  padding: clamp(2.5rem, 6vw, 4rem) 0 2rem;
  margin-top: clamp(3rem, 6vw, 5rem);
}
footer.site a{ color: #E7ECF5; text-decoration: none; }
footer.site .foot-grid{
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.5rem;
  padding-bottom: 2.2rem; border-bottom: 1px solid rgba(231,236,245,0.14);
}
@media (max-width: 780px){ footer.site .foot-grid{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px){ footer.site .foot-grid{ grid-template-columns: 1fr; } }
footer.site h4{ color: #E7ECF5; font-family: var(--body); font-weight: 700; font-size: 0.9rem; letter-spacing: 0; text-transform: none; margin-bottom: 1em; }
footer.site p{ color: #A9B4C4; }
footer.site .foot-brand p{ max-width: 32ch; }
footer.site ul{ list-style: none; margin: 0; padding: 0; }
footer.site li{ margin-bottom: 0.6em; }
.foot-bottom{
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.6em;
  padding-top: 1.6rem; font-size: 0.82rem; color: #7C8AA0;
}

/* ---------- Reveal-on-scroll ---------- */
.reveal{ opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in{ opacity: 1; transform: translateY(0); }

/* ---------- Utility ---------- */
.text-center{ text-align: center; }
.mt-0{ margin-top: 0; }
.small{ font-size: 0.9rem; }
.center-copy{ max-width: 62ch; margin: 0 auto; }