:root {
  --bg: #f7f8fb;
  --ink: #172033;
  --muted: #5c667a;
  --brand: #ef3e4f;
  --brand-dark: #d83446;
  --card: #ffffff;
  --border: #e6e9ef;
  --dark: #172033;
  --radius: 14px;
  --container: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

h1, h2, h3 { line-height: 1.2; color: var(--ink); margin: 0 0 0.5em; }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); letter-spacing: -0.01em; }
p { margin: 0 0 1rem; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.8em 1.4em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
}
.btn:active { transform: translateY(1px); }
.btn-sm { font-size: 0.92rem; padding: 0.6em 1.1em; }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); }
.btn-ghost { background: transparent; color: var(--ink); border-color: #d8dde7; }
.btn-ghost:hover { border-color: #aeb8c9; }
.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { background: #eef1f6; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(247, 248, 251, 0.85);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 0.5em; font-weight: 700; }
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 30px; height: 30px;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  font-weight: 800;
  font-size: 1.05rem;
}
.brand-name { font-size: 1.1rem; letter-spacing: -0.01em; }
.nav-links { display: flex; align-items: center; gap: 1.4rem; font-weight: 500; }
.nav-links a:not(.btn):hover { color: var(--brand); }

/* ===== Hero ===== */
.hero { padding: clamp(3.5rem, 8vw, 6rem) 0 clamp(2.5rem, 6vw, 4rem); }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 1rem;
}
.lede { font-size: clamp(1.05rem, 2vw, 1.3rem); color: var(--muted); max-width: 38ch; }
.lede strong { color: var(--ink); }
.cta-row { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.6rem; }
.trust-line { margin-top: 1.2rem; color: var(--muted); font-size: 0.92rem; }

/* ===== Sections ===== */
section { padding: clamp(2.5rem, 6vw, 4.5rem) 0; }
.pillars { background: var(--card); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.grid { display: grid; gap: 1.25rem; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card, .product {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
}
.card-icon {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: 10px;
  background: #fff2f3;
  color: var(--brand);
  margin-bottom: 1rem;
}
.card-icon svg { width: 24px; height: 24px; }
.card h3, .product h3 { font-size: 1.2rem; }
.card p, .product p { color: var(--muted); margin-bottom: 1.2rem; }

/* ===== Products ===== */
.product { display: flex; flex-direction: column; align-items: flex-start; }
.product .btn { margin-top: auto; }
.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #1c7a4d;
  background: #e7f5ee;
  border: 1px solid #bfe6d2;
  padding: 0.25em 0.7em;
  border-radius: 999px;
  margin-bottom: 0.9rem;
}
.tag-soon { color: #9a5b12; background: #fdeede; border-color: #f4d3a6; }
.product-muted { background: #fbfcfe; }

/* ===== Principles ===== */
.principles { background: var(--card); border-top: 1px solid var(--border); }
.principle-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.9rem; }
.principle-list li {
  padding: 0.9rem 1.1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--muted);
}
.principle-list strong { color: var(--ink); }

/* ===== FAQ ===== */
.faq-list { display: grid; gap: 0.75rem; max-width: 760px; }
.faq details {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.2rem 1.1rem;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  padding: 0.9rem 0;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--brand); font-weight: 700; }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--muted); padding-bottom: 0.9rem; margin: 0; }

/* ===== CTA band ===== */
.cta-band {
  background: linear-gradient(135deg, #172033, #4b5565);
  color: #fff;
}
.cta-inner { text-align: center; }
.cta-band h2 { color: #fff; }
.cta-band p { color: #cbd5e1; margin-bottom: 1.4rem; }

/* ===== Footer ===== */
.site-footer { background: var(--card); border-top: 1px solid var(--border); padding: 2.5rem 0; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; justify-content: space-between; }
.footer-links { display: flex; gap: 1.2rem; font-weight: 500; }
.footer-links a:hover { color: var(--brand); }
.copyright { color: var(--muted); font-size: 0.88rem; width: 100%; margin: 0; }

/* ===== Responsive ===== */
@media (max-width: 820px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .nav-links { gap: 0.9rem; font-size: 0.92rem; }
  .nav-links a:not(.btn) { display: none; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}