/* ========================================================
   ZYNLUME USE-CASE & LANDING SUBPAGES — UNIFIED LUXURY DESIGN
   ======================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  text-decoration: none !important;
  border-bottom: none !important;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  background: #06070b;
}

body {
  margin: 0;
  background: #06070b;
  color: #f5f6f8;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

.uc-wrap {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

/* Header & Brand Navigation */
.uc-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  position: relative;
  z-index: 50;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #ffffff;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.04em;
  text-decoration: none;
}

.brand b span {
  color: rgba(255, 255, 255, 0.4);
}

.brand-symbol {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: grid;
  place-items: center;
}

.brand-symbol svg {
  width: 24px;
  height: 24px;
}

.zm-ring { stroke: rgba(255, 255, 255, 0.15); stroke-width: 1.4; }
.zm-arc { stroke: #ffffff; stroke-width: 1.6; stroke-dasharray: 20 60; }
.zm-ring2 { stroke: rgba(255, 255, 255, 0.08); stroke-width: 1; }
.zm-s { stroke: #ffffff; stroke-width: 1.8; stroke-linecap: round; }
.zm-glint { stroke: #ffffff; stroke-width: 1.8; stroke-linecap: round; opacity: 0.6; }
.zm-dot { fill: #ffffff; }
.zm-spark { stroke: #ffffff; stroke-width: 1.6; stroke-linecap: round; }

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

/* Unified Button System */
.uc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 12px;
  font-size: 13.5px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  background: rgba(255, 255, 255, 0.04);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.12);
  text-decoration: none;
}

.uc-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.22);
  transform: translateY(-1px);
}

.uc-btn:active {
  transform: translateY(1px);
}

.uc-btn.primary {
  background: #ffffff;
  color: #070b13;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.12);
}

.uc-btn.primary:hover {
  background: #ffffff;
  color: #000000;
  box-shadow: 0 8px 30px rgba(255, 255, 255, 0.22);
  transform: translateY(-2px);
}

/* Hero Section */
.uc-hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: center;
  min-height: 640px;
  padding: 60px 0 80px;
  position: relative;
}

.uc-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.uc-hero h1 {
  max-width: 740px;
  margin: 0 0 20px;
  font-size: clamp(38px, 5.5vw, 68px);
  line-height: 1.02;
  letter-spacing: -0.05em;
  font-weight: 850;
  color: #ffffff;
}

.uc-hero p {
  max-width: 600px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 17px;
  line-height: 1.7;
}

.uc-actions {
  display: flex;
  gap: 12px;
  margin-top: 34px;
  flex-wrap: wrap;
}

/* Mockup Visual */
.uc-visual {
  position: relative;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(16px);
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.uc-visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 20px;
}

.uc-demo {
  position: absolute;
  top: 28px;
  left: 28px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(7, 11, 19, 0.85);
  color: #ffffff;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

/* Content Sections */
.uc-section {
  padding: 90px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.uc-section h2 {
  margin: 0 0 32px;
  font-size: clamp(30px, 4.5vw, 48px);
  letter-spacing: -0.045em;
  font-weight: 800;
  color: #ffffff;
}

.uc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.uc-card {
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.02);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.uc-card:hover {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.04);
  transform: translateY(-2px);
}

.uc-card span {
  color: rgba(255, 255, 255, 0.4);
  font-size: 12px;
  font-weight: 800;
  font-family: monospace;
}

.uc-card h3 {
  margin: 16px 0 10px;
  font-size: 20px;
  font-weight: 750;
  letter-spacing: -0.03em;
  color: #ffffff;
}

.uc-card p, .uc-note {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  line-height: 1.65;
}

.uc-note {
  margin-top: 24px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

/* FAQ */
.uc-faq {
  display: grid;
  gap: 12px;
}

.uc-faq details {
  padding: 20px 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.02);
  transition: all 0.2s ease;
}

.uc-faq details:hover {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.035);
}

.uc-faq summary {
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
}

.uc-faq summary::-webkit-details-marker {
  display: none;
}

.uc-faq summary::after {
  content: "+";
  font-size: 18px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.5);
  transition: transform 0.2s ease;
}

.uc-faq details[open] summary::after {
  transform: rotate(45deg);
}

.uc-faq p {
  margin-top: 14px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  line-height: 1.65;
}

/* Bottom CTA Banner */
.uc-cta {
  padding: 80px 32px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 28px;
  background: radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.06), transparent 70%), rgba(255, 255, 255, 0.02);
}

.uc-cta h2 {
  margin-bottom: 14px;
  font-size: clamp(28px, 4vw, 42px);
  color: #ffffff;
  letter-spacing: -0.04em;
}

.uc-cta p {
  max-width: 620px;
  margin: 0 auto 32px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 16px;
  line-height: 1.65;
}

/* Footer */
.uc-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 40px 0 60px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
}

.uc-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.uc-footer nav a {
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.2s;
}

.uc-footer nav a:hover {
  color: #ffffff;
}

/* Responsive Mobile */
@media (max-width: 860px) {
  .uc-hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 40px 0 60px;
    gap: 40px;
  }
  .uc-grid {
    grid-template-columns: 1fr;
  }
  .uc-footer {
    flex-direction: column;
    align-items: flex-start;
  }
  .uc-actions {
    flex-direction: column;
  }
  .uc-btn {
    width: 100%;
  }
}