:root {
  --bg: #f5f7fb;
  --text: #101826;
  --muted: #4e5d76;
  --line: rgba(16, 24, 38, 0.1);
  --panel: rgba(255, 255, 255, 0.74);
  --panel-strong: rgba(255, 255, 255, 0.92);
  --white: #ffffff;
  --accent: #ff8a00;
  --cyan: #25a8ff;
  --amber: #ff9a2e;
  --violet: #8b93ff;
  --radius-xl: 30px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --shadow-lg: 0 34px 88px rgba(15, 24, 37, 0.1);
  --shadow-md: 0 18px 44px rgba(15, 24, 37, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(980px 560px at 8% -12%, rgba(37, 168, 255, 0.16), transparent 52%),
    radial-gradient(980px 560px at 94% 4%, rgba(255, 154, 46, 0.12), transparent 46%),
    linear-gradient(180deg, #fbfdff 0%, var(--bg) 44%, #eef3fb 100%);
  line-height: 1.62;
}

.backdrop {
  position: fixed;
  z-index: -1;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  opacity: 0.22;
}

.halo-left {
  width: 260px;
  height: 260px;
  top: 9%;
  left: -100px;
  background: #86c6ff;
}

.halo-right {
  width: 340px;
  height: 340px;
  right: -120px;
  bottom: 14%;
  background: #ffc27f;
}

.container {
  width: min(1160px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  padding-top: 0.8rem;
}

.nav-frame {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(14px);
  padding: 0.36rem 1.02rem;
  box-shadow: var(--shadow-md);
}

.brand {
  text-decoration: none;
  color: var(--text);
  font-family: "Sora", sans-serif;
  font-size: 1.27rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.brand .k {
  color: var(--accent);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.main-nav a {
  color: #2f3e56;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
}

.main-nav a:hover {
  color: var(--text);
}

.hero {
  margin-top: 2.45rem;
  padding: 3.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: linear-gradient(150deg, rgba(255, 255, 255, 0.96), rgba(246, 250, 255, 0.86));
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 2.3rem;
  align-items: center;
}

.meta {
  margin: 0;
  color: #5a6d8f;
  font-size: 0.77rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  font-family: "Sora", sans-serif;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-top: 0;
}

h1 {
  margin: 0.86rem 0 1rem;
  font-size: clamp(2.3rem, 6vw, 4.9rem);
  max-width: 11.8ch;
}

h2 {
  margin: 0.42rem 0 0;
  font-size: clamp(1.75rem, 4vw, 2.7rem);
}

h3 {
  margin-bottom: 0.46rem;
  font-size: 1.2rem;
}

.lead {
  margin: 0;
  max-width: 58ch;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.14rem);
}

.cta-row {
  margin-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.72rem;
}

.btn {
  text-decoration: none;
  border-radius: 999px;
  padding: 0.78rem 1.2rem;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.btn-solid {
  color: #182235;
  background: linear-gradient(135deg, #ff8a00 0%, #ffb55f 100%);
  box-shadow: 0 14px 30px rgba(255, 138, 0, 0.26);
}

.btn-soft {
  color: var(--text);
  border: 1px solid var(--line);
  background: var(--panel-strong);
}

.tagline {
  margin-top: 0.95rem;
  color: #2b3b54;
  font-weight: 600;
}

.hero-logo {
  display: grid;
  justify-items: end;
}

.logo-square {
  aspect-ratio: 1 / 1;
  width: min(100%, 418px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
  box-shadow: var(--shadow-md);
  padding: 1rem;
  display: grid;
  place-items: center;
}

.logo-square img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 12px;
}

.section {
  padding: 4.2rem 0 0.2rem;
}

.section-head {
  max-width: 64ch;
}

.product-grid {
  margin-top: 1.35rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.product-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.2rem;
  background: var(--panel);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.accent-cyan::before {
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.accent-amber::before {
  background: linear-gradient(90deg, transparent, var(--amber), transparent);
}

.accent-violet::before {
  background: linear-gradient(90deg, transparent, var(--violet), transparent);
}

.product-type {
  margin: 0;
  color: #5f7090;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

.product-card p {
  color: var(--muted);
  margin-bottom: 0;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.glass-panel,
.stack,
.standards,
.contact {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel);
  box-shadow: var(--shadow-md);
}

.glass-panel {
  padding: 1.4rem;
}

.glass-panel p {
  color: var(--muted);
}

.stack {
  padding: 1rem;
  display: grid;
  gap: 0.72rem;
}

.stack article {
  border: 1px solid rgba(16, 24, 38, 0.08);
  background: rgba(255, 255, 255, 0.74);
  border-radius: var(--radius-md);
  padding: 0.92rem;
}

.stack p {
  margin: 0;
  color: var(--muted);
}

.standards {
  padding: 1.45rem;
}

.standards-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.standards-grid article {
  border: 1px solid rgba(16, 24, 38, 0.08);
  border-radius: var(--radius-md);
  padding: 0.92rem;
  background: rgba(255, 255, 255, 0.74);
}

.standards-grid strong {
  display: block;
  margin-bottom: 0.24rem;
}

.standards-grid span {
  color: var(--muted);
}

.contact {
  margin-bottom: 3.2rem;
  padding: 1.45rem;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(240, 247, 255, 0.82));
}

.contact p {
  margin-bottom: 0;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.7);
}

.footer-inner {
  min-height: 72px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #52627c;
  font-size: 0.92rem;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  animation: reveal 0.85s ease forwards;
}

.delay-1 {
  animation-delay: 0.08s;
}

.delay-2 {
  animation-delay: 0.16s;
}

.delay-3 {
  animation-delay: 0.24s;
}

.delay-4 {
  animation-delay: 0.32s;
}

@keyframes reveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1040px) {
  .hero,
  .product-grid,
  .split,
  .standards-grid {
    grid-template-columns: 1fr;
  }

  .hero-logo {
    justify-items: start;
  }

  .logo-square {
    width: min(100%, 370px);
  }
}

@media (max-width: 760px) {
  .main-nav {
    display: none;
  }

  .hero {
    padding: 1.45rem;
  }

  .site-header {
    padding-top: 0.62rem;
  }

  .section {
    padding-top: 3rem;
  }
}

@media (max-width: 560px) {
  .footer-inner {
    min-height: auto;
    padding: 1rem 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2rem;
  }
}