/* ===========================================================
   Schulte Grid PLUS — marketing site
   Tokens lifted directly from the app's own design system
   =========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Roboto+Mono:wght@400;500;700&family=Inter:wght@400;500;600;700;800&display=swap');

:root{
  --bg-primary:   #0A0E12;
  --bg-surface:   #13181C;
  --bg-elevated:  #1B2125;
  --glass-fill:   rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.08);
  --accent:       #00E5FF;
  --accent-2:     #00B8D4;
  --accent-dim:   rgba(0,229,255,0.16);
  --text-primary: #E7ECEF;
  --text-secondary: #8A949B;
  --text-disabled: #4A5359;
  --error:   #FF5252;
  --success: #00E5FF;
  --warning: #FFD740;
  --mono: 'Roboto Mono', ui-monospace, monospace;
  --sans: 'Inter', system-ui, -apple-system, sans-serif;
  --radius: 14px;
  --max-w: 1120px;
}

*{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }

body{
  background: radial-gradient(ellipse 1200px 800px at 50% -10%, rgba(0,229,255,0.07), transparent 60%), var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a{ color: var(--accent); text-decoration: none; }
a:hover{ text-decoration: underline; }

::selection{ background: var(--accent-dim); color: var(--text-primary); }

:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.wrap{
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- background grid texture ---------- */
.bg-grid{
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(0,229,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 50% at 50% 0%, black 0%, transparent 75%);
  pointer-events: none;
}

/* ---------- nav ---------- */
.nav{
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px) saturate(140%);
  background: rgba(10,14,18,0.72);
  border-bottom: 1px solid var(--glass-border);
}
.nav .wrap{
  display:flex;
  align-items:center;
  justify-content: space-between;
  height: 68px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.5px;
  color: var(--text-primary);
}
.brand img{ width:28px; height:28px; border-radius:7px; display:block; }
.brand .plus-tag{
  font-size: 10px;
  font-weight: 700;
  color: var(--bg-primary);
  background: var(--accent);
  padding: 2px 6px;
  border-radius: 4px;
  letter-spacing: 0.5px;
  vertical-align: 1px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap: 28px;
  font-size: 14px;
  color: var(--text-secondary);
}
.nav-links a{ color: var(--text-secondary); }
.nav-links a:hover{ color: var(--accent); text-decoration:none; }
.nav-cta{
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--bg-primary) !important;
  background: var(--accent);
  padding: 9px 16px;
  border-radius: 8px;
  transition: filter .15s ease, transform .15s ease;
}
.nav-cta:hover{ filter: brightness(1.1); text-decoration:none; transform: translateY(-1px); }

.back-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-secondary);
}
.back-link:hover{ color: var(--accent); text-decoration:none; }

/* ---------- eyebrow / labels ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.eyebrow::before{
  content:'';
  width:7px; height:7px;
  background: var(--accent);
  border-radius:50%;
  box-shadow: 0 0 10px var(--accent);
}

/* ---------- hero ---------- */
.hero{
  padding: 84px 0 60px;
  position: relative;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
h1.headline{
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}
h1.headline .accent{
  display:block;
  color: var(--accent);
  text-shadow: 0 0 24px rgba(0,229,255,0.45);
}
.hero p.lede{
  margin-top: 22px;
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 480px;
}
.hero-ctas{
  margin-top: 32px;
  display:flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn{
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 500;
  padding: 14px 26px;
  border-radius: 10px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  cursor:pointer;
  border: 1px solid transparent;
  transition: transform .15s ease, filter .15s ease, background .15s ease;
}
.btn-primary{
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06151A;
  box-shadow: 0 0 0 1px rgba(0,229,255,0.3), 0 8px 24px rgba(0,229,255,0.18);
}
.btn-primary:hover{ transform: translateY(-2px); filter: brightness(1.06); }
.btn-ghost{
  background: var(--glass-fill);
  border-color: var(--glass-border);
  color: var(--text-primary);
}
.btn-ghost:hover{ border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn[disabled], .btn.disabled{
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

.hero-stats{
  display:flex;
  gap: 28px;
  margin-top: 40px;
  font-family: var(--mono);
}
.hero-stats div{ }
.hero-stats .num{ font-size:22px; font-weight:700; color: var(--text-primary); }
.hero-stats .lbl{ font-size: 11px; color: var(--text-secondary); letter-spacing: 0.5px; text-transform: uppercase; margin-top:2px; }

/* ---------- live grid demo (signature element) ---------- */
.demo-frame{
  position: relative;
  border-radius: 20px;
  border: 1px solid var(--glass-border);
  background: linear-gradient(160deg, rgba(255,255,255,0.03), transparent 60%), var(--bg-surface);
  padding: 22px;
  box-shadow: 0 30px 80px -20px rgba(0,0,0,0.6), inset 0 0 0 1px rgba(255,255,255,0.02);
}
.demo-frame::before, .demo-frame::after{
  content:'';
  position:absolute;
  width: 18px; height: 18px;
  border: 2px solid var(--accent);
  opacity: 0.6;
}
.demo-frame::before{ top:10px; left:10px; border-right:none; border-bottom:none; }
.demo-frame::after{ bottom:10px; right:10px; border-left:none; border-top:none; }

.demo-head{
  display:flex;
  justify-content: space-between;
  align-items:center;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
  margin-bottom: 14px;
  padding: 0 2px;
}
.demo-head .timer{ color: var(--accent); font-weight:700; font-size:13px; }
.demo-status{ color: var(--text-secondary); }
.demo-status.win{ color: var(--accent); }

.grid-demo{
  display:grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 7px;
  aspect-ratio: 1;
}
.grid-cell{
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-family: var(--mono);
  font-weight:500;
  font-size: clamp(14px, 3vw, 20px);
  color: var(--text-primary);
  cursor: pointer;
  user-select:none;
  transition: transform .1s ease, border-color .15s ease, background .15s ease;
}
.grid-cell:hover{ border-color: rgba(0,229,255,0.4); }
.grid-cell.found{
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 16px rgba(0,229,255,0.25) inset;
}
.grid-cell.next{
  animation: pulseNext 1.6s ease-in-out infinite;
}
.grid-cell.shake{ animation: shakeCell .3s ease; }
@keyframes pulseNext{
  0%,100%{ box-shadow: 0 0 0 0 rgba(0,229,255,0); }
  50%{ box-shadow: 0 0 0 3px rgba(0,229,255,0.12) inset; }
}
@keyframes shakeCell{
  0%,100%{ transform: translateX(0); }
  25%{ transform: translateX(-4px); border-color: var(--error); }
  75%{ transform: translateX(4px); border-color: var(--error); }
}
.demo-foot{
  display:flex;
  justify-content: space-between;
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-secondary);
}
.demo-foot button{
  background:none; border:none; color: var(--text-secondary);
  font-family: var(--mono); font-size: 11px; cursor:pointer;
  text-decoration: underline;
}
.demo-foot button:hover{ color: var(--accent); }

/* ---------- section shells ---------- */
section{ padding: 88px 0; position: relative; }
.section-head{
  max-width: 620px;
  margin-bottom: 52px;
}
.section-head h2{
  font-family: var(--mono);
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight:700;
  letter-spacing: -0.3px;
}
.section-head p{
  margin-top: 14px;
  color: var(--text-secondary);
  font-size: 15.5px;
}
.divider{
  height:1px;
  background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
}

/* ---------- modes ---------- */
.modes-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.mode-card{
  background: var(--bg-surface);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: border-color .2s ease, transform .2s ease;
}
.mode-card:hover{ border-color: rgba(0,229,255,0.35); transform: translateY(-3px); }
.mode-tag{
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--text-disabled);
  margin-bottom: 14px;
}
.mode-icon{
  width: 38px; height:38px;
  border-radius:10px;
  background: var(--accent-dim);
  display:flex; align-items:center; justify-content:center;
  margin-bottom:16px;
  color: var(--accent);
}
.mode-card h3{ font-size:17px; font-weight:700; margin-bottom:8px; }
.mode-card p{ font-size:13.5px; color: var(--text-secondary); }

/* ---------- screenshots showcase ---------- */
.showcase{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.shot{
  border-radius: 16px;
  overflow:hidden;
  border: 1px solid var(--glass-border);
  background: var(--bg-surface);
  position:relative;
}
.shot img{ width:100%; display:block; }
.shot-cap{
  position:absolute;
  bottom:0; left:0; right:0;
  padding: 14px 14px 12px;
  background: linear-gradient(180deg, transparent, rgba(10,14,18,0.95) 60%);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-primary);
  letter-spacing: 0.3px;
}
.shot-cap span{ color: var(--accent); }

/* ---------- metrics strip ---------- */
.metrics{
  display:grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--glass-border);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  overflow:hidden;
}
.metric{
  background: var(--bg-surface);
  padding: 28px 18px;
  text-align:center;
}
.metric .v{ font-family: var(--mono); font-size: 24px; font-weight:700; color: var(--accent); }
.metric .l{ margin-top:6px; font-size:11.5px; color: var(--text-secondary); text-transform:uppercase; letter-spacing:0.5px; }

/* ---------- privacy/offline callout ---------- */
.callout{
  display:grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap:18px;
}
.callout-card{
  border: 1px solid var(--glass-border);
  background: var(--bg-surface);
  border-radius: var(--radius);
  padding: 24px;
}
.callout-card .ic{ color: var(--accent); margin-bottom:14px; }
.callout-card h4{ font-size:15px; margin-bottom:8px; }
.callout-card p{ font-size:13.5px; color:var(--text-secondary); }

/* ---------- final CTA ---------- */
.cta-band{
  border-radius: 20px;
  border: 1px solid var(--glass-border);
  background: linear-gradient(135deg, rgba(0,229,255,0.08), rgba(0,184,212,0.02));
  padding: 56px 48px;
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-band h2{ font-family: var(--mono); font-size: clamp(22px,3vw,30px); max-width:480px; }
.cta-band p{ color: var(--text-secondary); margin-top:10px; max-width:440px; font-size:14.5px;}

/* ---------- footer ---------- */
footer{
  border-top: 1px solid var(--glass-border);
  padding: 40px 0 50px;
}
.footer-grid{
  display:flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-brand{
  display:flex; align-items:center; gap:10px;
  font-family: var(--mono); font-size:14px; color: var(--text-secondary);
}
.footer-brand img{ width:22px; height:22px; border-radius:6px; }
.footer-links{
  display:flex;
  gap: 28px;
  font-size: 13.5px;
}
.footer-links a{ color: var(--text-secondary); }
.footer-links a:hover{ color: var(--accent); }
.footer-bottom{
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--glass-border);
  display:flex;
  justify-content: space-between;
  flex-wrap:wrap;
  gap: 10px;
  font-size: 12.5px;
  color: var(--text-disabled);
  font-family: var(--mono);
}

/* ---------- legal pages ---------- */
.legal-page{ padding: 56px 0 100px; }
.legal-header{
  margin-bottom: 44px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--glass-border);
}
.legal-header h1{
  font-family: var(--mono);
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 700;
  margin-top: 18px;
}
.legal-meta{
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text-secondary);
}
.legal-body{
  display:grid;
  grid-template-columns: 220px 1fr;
  gap: 56px;
}
.legal-toc{
  position: sticky;
  top: 96px;
  align-self: start;
  font-size: 13px;
}
.legal-toc .toc-label{
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--text-disabled);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.legal-toc a{
  display:block;
  color: var(--text-secondary);
  padding: 7px 0;
  border-left: 2px solid transparent;
  padding-left: 12px;
  margin-left: -1px;
  font-size: 13px;
  line-height: 1.4;
}
.legal-toc a:hover{ color: var(--accent); text-decoration:none; border-left-color: var(--glass-border); }

.legal-content section{
  padding: 0 0 36px;
  border: none;
  scroll-margin-top: 90px;
}
.legal-content h2{
  font-family: var(--mono);
  font-size: 19px;
  color: var(--accent);
  margin-bottom: 14px;
  display:flex;
  align-items:baseline;
  gap: 10px;
}
.legal-content h2 .num{ color: var(--text-disabled); font-size:14px; }
.legal-content p{
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 14px;
}
.legal-content ul{
  margin: 0 0 14px 0;
  padding-left: 20px;
  color: var(--text-secondary);
  font-size: 15px;
}
.legal-content li{ margin-bottom: 8px; }
.legal-content a{ color: var(--accent); }
.legal-content strong{ color: var(--text-primary); font-weight: 600; }

.legal-contact{
  margin-top: 12px;
  border: 1px solid var(--glass-border);
  background: var(--bg-surface);
  border-radius: var(--radius);
  padding: 24px;
  font-size: 14px;
}
.legal-contact .row{ display:flex; gap:10px; padding: 6px 0; color: var(--text-secondary); }
.legal-contact .row b{ color: var(--text-primary); min-width: 130px; display:inline-block; font-family: var(--mono); font-size: 12.5px; text-transform:uppercase; letter-spacing:0.3px; }

.cross-link{
  display:flex;
  gap: 14px;
  margin-top: 50px;
  padding-top: 28px;
  border-top: 1px solid var(--glass-border);
}
.cross-link a{
  flex:1;
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  padding: 16px 18px;
  font-size: 13.5px;
  color: var(--text-primary);
  display:flex;
  flex-direction:column;
  gap:4px;
}
.cross-link a:hover{ border-color: var(--accent); text-decoration:none; }
.cross-link small{ color: var(--text-secondary); font-family: var(--mono); font-size: 10.5px; text-transform:uppercase; letter-spacing:0.5px; }

/* ---------- responsive ---------- */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .modes-grid{ grid-template-columns: repeat(2,1fr); }
  .showcase{ grid-template-columns: repeat(2,1fr); }
  .metrics{ grid-template-columns: repeat(2,1fr); }
  .callout{ grid-template-columns: 1fr; }
  .legal-body{ grid-template-columns: 1fr; }
  .legal-toc{ position:static; margin-bottom: 20px; }
}
@media (max-width: 620px){
  .nav-links{ display:none; }
  .modes-grid{ grid-template-columns: 1fr; }
  .showcase{ grid-template-columns: 1fr 1fr; }
  .metrics{ grid-template-columns: repeat(2,1fr); }
  .hero-stats{ gap:18px; flex-wrap:wrap; }
  .cta-band{ padding: 36px 26px; }
  .footer-grid{ flex-direction:column; }
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}