/* AIBI Systems --- Stripe/Pitch inspired minimalist system UI */

:root{
  --bg: #ffffff;
  --fg: #0b1220;
  --muted: rgba(11,18,32,.70);
  --muted2: rgba(11,18,32,.55);
  --line: rgba(11,18,32,.10);
  --card: rgba(11,18,32,.03);
  --shadow: 0 18px 60px rgba(11,18,32,.10);
  --radius: 16px;

  --accent: #1f6feb;
  --accent2: rgba(31,111,235,.14);

  --max: 1120px;
  --pad: 22px;
  --headerH: 76px;
  --h1: clamp(40px, 4.6vw, 64px);
  --h2: clamp(24px, 2.4vw, 34px);
  --h3: clamp(18px, 1.6vw, 22px);
  --p: 16px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: "Montserrat", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.55;
  letter-spacing: -0.01em;
}

a{ color: inherit; text-decoration:none; }
p{ margin: 0 0 14px 0; color: var(--muted); font-size: var(--p); }
small{ color: var(--muted2); }

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

.hr{ height:1px; background: var(--line); border:0; margin:0; }

.header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.78);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner{
  height: var(--headerH);
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 18px;
}

.brand{
  display:flex;
  align-items:center;
  gap: 10px;
  min-width: 170px;
}
.logo{
  width: 34px; height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(31,111,235,.22), rgba(11,18,32,.05));
  border: 1px solid var(--line);
}
.brand span{ font-weight: 650; letter-spacing: -0.02em; }

.nav{
  display:flex;
  align-items:center;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}
.nav a{
  padding: 8px 10px;
  border-radius: 10px;
}
.nav a:hover{ background: rgba(11,18,32,.04); color: var(--fg); }

.actions{ display:flex; align-items:center; gap: 10px; }

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: white;
  font-weight: 600;
  font-size: 14px;
  cursor:pointer;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
}
.btn:hover{ box-shadow: 0 10px 30px rgba(11,18,32,.10); transform: translateY(-1px); }
.btn-primary{
  background: linear-gradient(180deg, rgba(31,111,235,1), rgba(20,84,186,1));
  color: white;
  border-color: rgba(31,111,235,.35);
}
.btn-primary:hover{ box-shadow: 0 18px 50px rgba(31,111,235,.28); }
.btn-ghost{ background: rgba(11,18,32,.02); }

.hero{
  position: relative;
  padding: 88px 0 58px 0;
  overflow: hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset: -180px -120px auto -120px;
  height: 420px;
  background:
    radial-gradient(closest-side, rgba(31,111,235,.18), transparent 60%),
    radial-gradient(closest-side, rgba(11,18,32,.10), transparent 62%);
  filter: blur(10px);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 30px;
  align-items: start;
}
.kicker{
  display:inline-flex;
  align-items:center;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: rgba(11,18,32,.02);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 16px;
}
.kicker-dot{
  width: 8px; height: 8px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 6px var(--accent2);
}
h1{
  font-size: var(--h1);
  line-height: 1.04;
  margin: 0 0 14px 0;
  letter-spacing: -0.04em;
}
.hero p{ font-size: 17px; color: var(--muted); max-width: 64ch; }
.hero-cta{ display:flex; gap: 12px; flex-wrap: wrap; margin-top: 18px; }
.hero-note{ margin-top: 14px; color: var(--muted2); font-size: 13px; }

.panel{
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.65);
  box-shadow: var(--shadow);
  padding: 18px;
}
.panel h3{ margin: 4px 0 10px 0; font-size: var(--h3); letter-spacing: -0.02em; }
.panel ul{ margin: 0; padding-left: 18px; color: var(--muted); font-size: 14px; }
.panel li{ margin: 8px 0; }

.section{ padding: 70px 0; }
.section-title{ margin: 0 0 12px 0; font-size: var(--h2); letter-spacing: -0.03em; }
.sublead{ margin-bottom: 22px; color: var(--muted); max-width: 85ch; }

.grid-2{ display:grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.card{
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  padding: 18px;
}
.card h4{ margin: 2px 0 10px 0; font-size: 15px; letter-spacing: -0.02em; }
.card p{ font-size: 14px; margin-bottom:0; }

.badges{ display:flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.badge{
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
  background: rgba(255,255,255,.55);
}

.toolkit-wrap{
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 26px;
  background: linear-gradient(180deg, rgba(11,18,32,.02), rgba(255,255,255,1));
}
.toolkit-top{
  display:flex;
  align-items:flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.toolkit-title{ margin: 0; font-size: clamp(26px, 3vw, 38px); letter-spacing: -0.04em; }
.toolkit-meta{ color: var(--muted); font-size: 15px; max-width: 72ch; }
.list{ margin: 16px 0 0 0; padding-left: 18px; color: var(--muted); font-size: 14px; }
.list li{ margin: 8px 0; }
.toolkit-cta{ display:flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }

.form{
  display:grid;
  gap: 12px;
  max-width: 680px;
}
.input{
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  font-family: inherit;
  font-size: 14px;
}
textarea.input{ min-height: 140px; resize: vertical; }
.form-row{ display:grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.footer{ padding: 40px 0; border-top: 1px solid var(--line); }
.footer-grid{ display:grid; grid-template-columns: 1.2fr .8fr; gap: 18px; }
.footer small{ display:block; margin-top: 12px; }
.footer a{ color: var(--muted); }
.footer a:hover{ color: var(--fg); }

.mobile-only{ display:none; }

/* Homepage components */
.lead{ font-size: 18px; color: var(--fg); margin-bottom: 6px; }
.strong{ color: var(--fg); font-weight: 600; }
.narrow{ max-width: 860px; }
.note{ margin-top: 12px; color: var(--muted2); font-size: 12px; }

.section-soft{ background: rgba(11,18,32,.015); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.icon-row{ display:flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.icon-chip{ display:inline-flex; align-items:center; gap: 10px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.65); color: var(--muted); font-size: 13px; }
.icon-chip img{ width: 22px; height: 22px; object-fit: contain; }

.panel-hero{ padding: 16px; }
.hero-illustration{ width: 100%; height: auto; display:block; border-radius: 14px; border: 1px solid var(--line); background: white; margin-bottom: 14px; }

.split{ display:grid; grid-template-columns: 1.1fr .9fr; gap: 22px; align-items: start; }
.bullets{ margin: 12px 0 0 0; padding-left: 18px; color: var(--muted); }
.bullets li{ margin: 10px 0; }
.mini{ font-size: 13px; color: var(--muted2); margin: 0; }

.grid-3{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }

.card-link{ transition: transform .12s ease, box-shadow .12s ease, background .12s ease; }
.card-link:hover{ box-shadow: 0 18px 60px rgba(11,18,32,.10); transform: translateY(-1px); background: rgba(255,255,255,.9); }
.tag{ display:inline-flex; align-items:center; padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.55); font-size: 12px; color: var(--muted); margin-bottom: 10px; }

.cta-bar{ border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(180deg, rgba(31,111,235,.10), rgba(255,255,255,1)); padding: 20px; margin-top: 22px; display:flex; align-items:center; justify-content: space-between; gap: 18px; flex-wrap: wrap; }

.steps{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 22px; }
.step{ border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,.7); padding: 18px; }
.step-num{ width: 34px; height: 34px; border-radius: 12px; display:flex; align-items:center; justify-content:center; background: rgba(31,111,235,.12); color: rgba(20,84,186,1); font-weight: 700; margin-bottom: 12px; }

@media (max-width: 920px){
  .hero-grid{ grid-template-columns: 1fr; }
  .grid-2{ grid-template-columns: 1fr; }
  .nav{ display:none; }
  .mobile-only{ display:inline-flex; }
  .form-row{ grid-template-columns: 1fr; }
  .split{ grid-template-columns: 1fr; }
  .grid-3{ grid-template-columns: 1fr; }
  .steps{ grid-template-columns: 1fr; }
}

@media (max-width: 520px){
  .btn{ width: 100%; }
  .actions{ width: 100%; }
  .header-inner{ gap: 10px; }
  .brand{ min-width: auto; }
}