:root {
  --bg: #0b0f14;
  --bg-alt: #10161d;
  --surface: #151c24;
  --border: #26313d;
  --text: #e7edf3;
  --muted: #9aa8b6;
  --accent: #35c4a7;
  --accent-hover: #46d9bb;
  --max: 1120px;
  --radius: 12px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.narrow { max-width: 760px; }
.center { text-align: center; }

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

/* HEADER */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 15, 20, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.2px;
  color: var(--text);
}
.brand:hover { color: var(--text); }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { color: var(--muted); font-size: 0.95rem; font-weight: 500; }
.nav a:hover { color: var(--text); }
.nav-cta {
  color: var(--accent) !important;
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 8px;
}
.nav-cta:hover { border-color: var(--accent); }

/* HERO */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 560px;
  padding: 96px 0;
  background: url("imagesa/banner_bg.jpg") center / cover no-repeat;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    rgba(11, 15, 20, 0.94) 0%,
    rgba(11, 15, 20, 0.82) 45%,
    rgba(11, 15, 20, 0.55) 100%
  );
}
.hero-content { position: relative; max-width: 760px; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 16px;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.1;
  margin: 0 0 20px;
  letter-spacing: -0.5px;
}
.lede { font-size: 1.2rem; color: var(--muted); margin: 0 0 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* BUTTONS */
.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}
.btn-primary { background: var(--accent); color: #06231d; }
.btn-primary:hover { background: var(--accent-hover); color: #06231d; }
.btn-ghost { border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--text); }
.btn-lg { padding: 16px 34px; font-size: 1.1rem; }

/* SECTIONS */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); }
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.3px;
  margin: 0 0 28px;
}
.section-lede { font-size: 1.2rem; color: var(--muted); max-width: 760px; }
.value .section-lede { font-size: 1.35rem; line-height: 1.5; color: var(--text); }
.value strong { color: var(--accent); }

/* CARDS */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.card:hover { border-color: var(--accent); transform: translateY(-3px); }
.card h3 { font-size: 1.25rem; margin: 0 0 12px; }
.card p { color: var(--muted); margin: 0; }

/* APPROACH */
.approach-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.approach-copy p { color: var(--muted); font-size: 1.1rem; }
.checklist { list-style: none; padding: 0; margin: 24px 0 0; }
.checklist li {
  position: relative;
  padding: 10px 0 10px 32px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.checklist li:last-child { border-bottom: none; }
.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 8px;
  height: 14px;
  border: solid var(--accent);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.approach-media {
  min-height: 340px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: url("imagesa/data_idea.jpg") center / cover no-repeat;
}

/* CONTACT */
.section-contact {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}
.section-contact .section-lede { margin: 0 auto 32px; }

/* FOOTER */
.site-footer { border-top: 1px solid var(--border); padding: 32px 0; }
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  align-items: center;
  justify-content: space-between;
}
.brand-sm { font-weight: 700; }
.muted { color: var(--muted); font-size: 0.9rem; }

/* RESPONSIVE */
@media (max-width: 860px) {
  .cards { grid-template-columns: 1fr; }
  .approach-grid { grid-template-columns: 1fr; gap: 32px; }
  .approach-media { min-height: 240px; }
  .nav { gap: 16px; }
  .nav a:not(.nav-cta) { display: none; }
  .section { padding: 64px 0; }
  .hero { min-height: 480px; padding: 72px 0; }
}