/* TrustFabric landing page — light, colorful (soofi-style) theme */
:root {
  --bg: #ffffff;
  --bg-alt: #eef4fd;
  --panel: #ffffff;
  --border: #dbe5f3;
  --text: #14173f;
  --muted: #55617f;
  --accent: #4a5cf0;
  --accent-2: #0ea47a;
  --danger: #e0369b;
  --grad: linear-gradient(90deg, #f9a03f, #e0369b, #8a4fe9, #38b6ff);
  --grad-btn: linear-gradient(90deg, #e0369b, #8a4fe9, #4a5cf0);
  --shadow: 0 10px 30px rgba(20, 23, 63, 0.08);
  --radius: 16px;
  --maxw: 1100px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

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

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--text); text-decoration: none; letter-spacing: -0.02em; line-height: 1.1; }
.logo span {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.logo .by-line {
  display: block;
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  line-height: 1;
  margin-top: 2px;
}
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 0.92rem; font-weight: 500; }
.nav-links a:hover { color: var(--text); }

/* Buttons */
.btn {
  display: inline-block;
  background: var(--grad-btn);
  color: #fff !important;
  padding: 13px 28px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  box-shadow: 0 6px 18px rgba(138, 79, 233, 0.28);
  transition: filter 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { filter: brightness(1.06); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(138, 79, 233, 0.34); }
.btn-ghost {
  background: #fff;
  border: 2px solid var(--text);
  color: var(--text) !important;
  box-shadow: none;
}
.btn-ghost:hover { box-shadow: var(--shadow); }
.btn-small { padding: 9px 20px; font-size: 0.88rem; }
.btn-large { padding: 16px 38px; font-size: 1.1rem; }

/* Hero */
.hero {
  padding: 96px 0 72px;
  background:
    radial-gradient(ellipse 45% 40% at 12% 10%, rgba(249, 160, 63, 0.14), transparent),
    radial-gradient(ellipse 50% 45% at 88% 8%, rgba(56, 182, 255, 0.16), transparent),
    radial-gradient(ellipse 45% 40% at 75% 85%, rgba(224, 54, 155, 0.10), transparent),
    linear-gradient(180deg, #f2f7ff 0%, #ffffff 100%);
  text-align: center;
}
.eyebrow {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(2.3rem, 5.5vw, 3.9rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 24px;
}
.lead {
  color: var(--muted);
  font-size: 1.12rem;
  max-width: 720px;
  margin: 0 auto 34px;
}
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 60px; }

/* Badges */
.badge-row { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 42px; }
.badge {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 7px 16px;
  border-radius: 999px;
  box-shadow: 0 3px 10px rgba(20, 23, 63, 0.05);
}
.badge-sec { border-color: rgba(14, 164, 122, 0.45); color: var(--accent-2); }

/* Architecture flow */
.flow {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}
.flow-node {
  background: #fff;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 20px;
  font-weight: 700;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 110px;
  box-shadow: var(--shadow);
}
.flow-node small { display: block; font-weight: 500; color: var(--muted); font-size: 0.75rem; margin-top: 2px; }
.flow-node.guard { border-color: #8a4fe9; }
.flow-node.llm { border-color: #38b6ff; }
.flow-arrow { align-self: center; color: var(--muted); font-size: 1.3rem; }

/* Sections */
.section { padding: 84px 0; }
.section-alt { background: var(--bg-alt); }
.section h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 16px;
}
.section-lead {
  color: var(--muted);
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px;
  font-size: 1.04rem;
}
.section-lead strong {
  background: var(--grad-btn);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
}

/* Stat banner */
.stat-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px 36px;
  max-width: 640px;
  margin: 0 auto 48px;
  text-align: left;
}
.stat-number {
  font-size: clamp(2.6rem, 6vw, 3.8rem);
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}
.stat-banner p { color: var(--text); font-size: 1.05rem; }
.stat-banner small { color: var(--muted); }

.eyebrow.center { text-align: center; display: block; }
.sub-heading {
  text-align: center;
  font-size: 1.3rem;
  font-weight: 800;
  margin: 56px 0 28px;
}
.card .example { margin-top: 12px; color: #8a4fe9; font-size: 0.85rem; font-style: italic; }

/* Technology strip */
.tech-strip {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  max-width: 860px;
  margin: 0 auto 48px;
}
.tech-item {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px 22px;
  flex: 1 1 300px;
  max-width: 400px;
}
.tech-item h3 { font-size: 1.05rem; margin-bottom: 8px; font-weight: 700; }
.tech-item p { color: var(--muted); font-size: 0.92rem; }
.tech-plus {
  align-self: center;
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--grad-btn);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Broker steps */
.broker-steps {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  max-width: 1000px;
  margin: 0 auto 48px;
}
.step-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px 22px;
  flex: 1 1 260px;
  max-width: 330px;
}
.step-card h3 { font-size: 1.05rem; margin-bottom: 8px; font-weight: 700; }
.step-card p { color: var(--muted); font-size: 0.92rem; }
.step-num {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--grad-btn);
  color: #fff;
  font-weight: 800;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.step-arrow {
  align-self: center;
  color: var(--muted);
  font-size: 1.5rem;
  font-weight: 700;
}
@media (max-width: 720px) {
  .step-arrow { transform: rotate(90deg); }
}

/* Anonymizer demo */
.anon-demo {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}
.anon-pane {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  flex: 1 1 340px;
  max-width: 480px;
}
.anon-pane h4 {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
  font-weight: 700;
}
.anon-pane pre {
  font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
  font-size: 0.86rem;
  line-height: 1.9;
  white-space: pre-wrap;
  word-break: break-word;
}
.anon-arrow { align-self: center; text-align: center; color: var(--muted); font-size: 1.6rem; }
.anon-arrow small { display: block; font-size: 0.72rem; line-height: 1.4; margin-top: 4px; }
mark.pii { background: rgba(224, 54, 155, 0.12); color: #c22a84; border-radius: 5px; padding: 1px 6px; }
mark.tok { background: rgba(14, 164, 122, 0.12); color: #0b8a67; border-radius: 5px; padding: 1px 6px; }
.anon-note { color: var(--muted); text-align: center; max-width: 720px; margin: 36px auto 0; font-size: 0.95rem; }

/* Cards */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-5 { grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 24px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 14px 34px rgba(20, 23, 63, 0.12); }
.card-icon { font-size: 1.9rem; margin-bottom: 12px; }
.card h3 { font-size: 1.05rem; margin-bottom: 8px; font-weight: 700; }
.card p { color: var(--muted); font-size: 0.92rem; }
.card-big ul { list-style: none; margin-top: 14px; }
.card-big li { color: var(--muted); padding: 7px 0 7px 26px; position: relative; }
.card-big li::before { content: "✔"; color: var(--accent-2); position: absolute; left: 0; font-weight: 700; }
.card-cta { margin-top: 18px; padding: 10px 22px; font-size: 0.9rem; }
.card-illus {
  background: linear-gradient(180deg, #f2f7ff, #eaf1fc);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 18px;
  overflow: hidden;
}
.card-illus svg { display: block; width: 100%; height: auto; }
.broker-illus {
  background: linear-gradient(180deg, #f2f7ff, #eaf1fc);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  max-width: 860px;
  margin: 0 auto 48px;
}
.broker-illus svg { display: block; width: 100%; height: auto; }
.tag {
  display: inline-block;
  background: rgba(74, 92, 240, 0.08);
  color: var(--accent);
  border: 1px solid rgba(74, 92, 240, 0.35);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border-radius: 999px;
  vertical-align: middle;
  margin-left: 8px;
}

/* Sovereignty callout */
.sov-callout {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px;
  max-width: 960px;
  margin: 0 auto;
}
.sov-illus svg { display: block; width: 100%; height: auto; }
.sov-text { max-width: 780px; margin: 18px auto 0; }
.sov-text p { color: var(--muted); font-size: 0.96rem; text-align: center; }
.sov-text strong { color: var(--text); }

/* HSM callout */
.hsm-callout {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px;
  max-width: 900px;
  margin: 26px auto 0;
}
.hsm-illus { flex: 0 1 220px; min-width: 180px; margin: 0 auto; }
.hsm-illus svg { display: block; width: 100%; height: auto; }
.hsm-text { flex: 1 1 380px; }
.hsm-text h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
.hsm-text p { color: var(--muted); font-size: 0.95rem; }
.hsm-text p strong { color: var(--text); }
.hsm-text ul { list-style: none; margin-top: 12px; }
.hsm-text li { color: var(--muted); font-size: 0.92rem; padding: 5px 0 5px 26px; position: relative; }
.hsm-text li::before { content: "✔"; color: var(--accent-2); position: absolute; left: 0; font-weight: 700; }

/* Positioning */
.positioning { text-align: center; }
.positioning blockquote {
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 18px;
}
.positioning strong {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.positioning p { color: var(--muted); max-width: 640px; margin: 0 auto; }

/* Contact */
.contact { text-align: center; }

/* Footer */
.site-footer {
  background: #14173f;
  padding: 34px 0;
  text-align: center;
  color: #aab3d4;
  font-size: 0.88rem;
}
.site-footer a { color: #7fc4ff; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

/* Mobile */
@media (max-width: 720px) {
  .nav-links { gap: 14px; font-size: 0.85rem; }
  .nav-links a:not(.btn) { display: none; }
  .flow-arrow { transform: rotate(90deg); }
  .flow { flex-direction: column; align-items: center; }
  .anon-arrow { transform: none; }
}