:root {
  color-scheme: dark;
  --bg: #050711;
  --bg-deep: #02030a;
  --text: #f7fbff;
  --muted: #aab5cc;
  --soft: #d8e4ff;
  --cyan: #38bdf8;
  --violet: #7c3aed;
  --violet-bright: #a855f7;
  --glass: rgba(10, 14, 29, 0.62);
  --glass-strong: rgba(12, 17, 34, 0.84);
  --line: rgba(180, 200, 255, 0.18);
  --cyan-line: rgba(56, 189, 248, 0.34);
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.5);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 18% 18%, rgba(56, 189, 248, 0.2), transparent 30rem),
    radial-gradient(circle at 78% 20%, rgba(168, 85, 247, 0.26), transparent 32rem),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.72), transparent 82%);
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 50%;
  z-index: 20;
  display: flex;
  width: min(1180px, calc(100% - 32px));
  min-height: 82px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  transform: translateX(-50%);
}

.site-header::before {
  position: absolute;
  inset: 12px -14px;
  z-index: -1;
  content: "";
  border: 1px solid rgba(180, 200, 255, 0.12);
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(4, 7, 18, 0.7), rgba(8, 12, 28, 0.5));
  box-shadow:
    0 18px 70px rgba(0, 0, 0, 0.38),
    0 0 48px rgba(56, 189, 248, 0.08);
  backdrop-filter: blur(22px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-icon {
  width: 44px;
  height: 44px;
  border: 1px solid rgba(56, 189, 248, 0.36);
  border-radius: 12px;
  object-fit: cover;
  box-shadow:
    0 0 34px rgba(56, 189, 248, 0.28),
    0 0 46px rgba(124, 58, 237, 0.2);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 30px);
  color: rgba(216, 228, 255, 0.82);
  font-size: 0.94rem;
  font-weight: 650;
}

.main-nav a {
  transition: color 160ms ease, text-shadow 160ms ease;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--cyan);
  text-shadow: 0 0 22px rgba(56, 189, 248, 0.5);
}

.hero-section {
  position: relative;
  isolation: isolate;
  display: grid;
  min-height: 100vh;
  align-items: center;
  overflow: hidden;
  padding: 132px max(24px, calc((100vw - 1220px) / 2)) 138px;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: -3;
  background:
    radial-gradient(circle at 76% 42%, rgba(56, 189, 248, 0.3), transparent 24rem),
    radial-gradient(circle at 88% 30%, rgba(168, 85, 247, 0.32), transparent 28rem),
    linear-gradient(180deg, rgba(6, 8, 18, 0.12), rgba(2, 3, 10, 0.84));
}

.hero-art {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: -2;
  width: min(68vw, 980px);
  background-image: url("assets/brand-source/background.png");
  background-position: center right;
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 1;
  filter: saturate(1.18) contrast(1.08);
  transform: scale(1.03);
  transform-origin: right center;
}

.hero-art::before,
.hero-art::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.hero-art::before {
  inset: 0;
  background:
    radial-gradient(circle at 62% 44%, rgba(56, 189, 248, 0.08), transparent 20rem),
    linear-gradient(90deg, rgba(2, 3, 10, 0.68) 0%, rgba(2, 3, 10, 0.08) 34%, rgba(2, 3, 10, 0.18) 74%, rgba(2, 3, 10, 0.72) 100%),
    linear-gradient(180deg, rgba(2, 3, 10, 0.42) 0%, rgba(2, 3, 10, 0.06) 42%, rgba(2, 3, 10, 0.92) 100%);
}

.hero-art::after {
  right: 8%;
  bottom: 11%;
  width: min(38vw, 520px);
  aspect-ratio: 1;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.2), rgba(124, 58, 237, 0.12) 42%, transparent 68%);
  filter: blur(20px);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 18% 52%, rgba(56, 189, 248, 0.12), transparent 20rem),
    linear-gradient(90deg, rgba(2, 3, 10, 0.99) 0%, rgba(2, 3, 10, 0.94) 31%, rgba(2, 3, 10, 0.46) 58%, rgba(2, 3, 10, 0.26) 100%),
    linear-gradient(180deg, rgba(2, 3, 10, 0.48) 0%, rgba(2, 3, 10, 0.08) 45%, rgba(2, 3, 10, 1) 100%);
}

.hero-layout {
  position: relative;
  display: grid;
  width: min(1220px, 100%);
  min-height: calc(100vh - 270px);
  align-items: center;
}

.hero-content {
  width: min(690px, 100%);
  padding-top: 24px;
}

.status-badge,
.section-kicker {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  margin: 0 0 18px;
  padding: 0 13px;
  border: 1px solid var(--cyan-line);
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.1);
  color: var(--cyan);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  box-shadow: 0 0 32px rgba(56, 189, 248, 0.14);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 26px;
  font-size: clamp(4.3rem, 8.4vw, 8.8rem);
  line-height: 0.84;
  letter-spacing: 0;
  text-wrap: balance;
  text-shadow:
    0 0 36px rgba(56, 189, 248, 0.16),
    0 20px 80px rgba(0, 0, 0, 0.62);
}

h2 {
  margin-bottom: 0;
  font-size: clamp(1.8rem, 4vw, 3.15rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 8px;
  font-size: 1.06rem;
  letter-spacing: 0;
}

.hero-subline {
  max-width: 640px;
  margin-bottom: 34px;
  color: var(--soft);
  font-size: clamp(1.1rem, 1.7vw, 1.32rem);
  line-height: 1.62;
  text-shadow: 0 10px 34px rgba(0, 0, 0, 0.52);
}

.newsletter-form {
  width: min(650px, 100%);
  padding: 20px;
  border: 1px solid rgba(56, 189, 248, 0.24);
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(14, 20, 42, 0.88), rgba(6, 8, 19, 0.68)),
    radial-gradient(circle at 18% 0%, rgba(56, 189, 248, 0.15), transparent 18rem);
  box-shadow:
    0 26px 90px rgba(0, 0, 0, 0.52),
    0 0 46px rgba(56, 189, 248, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(22px);
}

.newsletter-form label {
  display: block;
  margin-bottom: 10px;
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 800;
}

.signup-row {
  display: flex;
  gap: 10px;
}

.signup-row input,
.signup-row button {
  min-height: 58px;
  border-radius: 12px;
  font: inherit;
}

.signup-row input {
  width: 100%;
  min-width: 0;
  border: 1px solid rgba(180, 200, 255, 0.24);
  background: rgba(2, 4, 12, 0.82);
  color: var(--text);
  outline: none;
  padding: 0 15px;
}

.signup-row input:focus {
  border-color: rgba(56, 189, 248, 0.72);
  box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.12);
}

.signup-row button {
  flex: 0 0 auto;
  border: 0;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--violet-bright) 100%);
  color: #02030a;
  cursor: default;
  font-weight: 900;
  padding: 0 24px;
  box-shadow:
    0 16px 42px rgba(56, 189, 248, 0.24),
    0 0 30px rgba(168, 85, 247, 0.22);
}

.newsletter-form p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.trust-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.trust-bar span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.055);
  color: rgba(216, 228, 255, 0.88);
  font-size: 0.9rem;
  font-weight: 700;
  backdrop-filter: blur(12px);
}

.feature-section {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 0.68fr 1.32fr;
  gap: clamp(20px, 4vw, 42px);
  width: min(1220px, calc(100% - 32px));
  margin: -116px auto 0;
  padding: 18px;
  border: 1px solid rgba(56, 189, 248, 0.18);
  border-radius: 22px;
  background:
    linear-gradient(135deg, rgba(11, 16, 34, 0.72), rgba(6, 8, 20, 0.46)),
    radial-gradient(circle at 82% 10%, rgba(168, 85, 247, 0.14), transparent 24rem);
  box-shadow:
    0 36px 110px rgba(0, 0, 0, 0.5),
    0 0 70px rgba(56, 189, 248, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(24px);
}

.section-intro {
  align-self: center;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.feature-card {
  min-height: 168px;
  padding: 18px;
  border: 1px solid rgba(180, 200, 255, 0.16);
  border-radius: 16px;
  background:
    radial-gradient(circle at 20% 0%, rgba(56, 189, 248, 0.16), transparent 11rem),
    linear-gradient(160deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.035));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.feature-card img {
  width: 30px;
  height: 30px;
  margin-bottom: 18px;
  filter: drop-shadow(0 0 12px rgba(56, 189, 248, 0.34));
}

.feature-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.technology-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  width: min(1180px, calc(100% - 32px));
  margin: 18px auto 32px;
  color: rgba(216, 228, 255, 0.78);
  font-size: 0.9rem;
}

.technology-strip span {
  padding: 9px 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
}

.site-footer {
  display: flex;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0 28px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: rgba(216, 228, 255, 0.66);
  font-size: 0.92rem;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--cyan);
}

@media (max-width: 980px) {
  .hero-section {
    padding-top: 116px;
    padding-bottom: 112px;
  }

  .hero-art {
    width: 78vw;
    opacity: 0.78;
    background-position: 64% center;
  }

  .hero-overlay {
    background:
      radial-gradient(circle at 72% 34%, rgba(56, 189, 248, 0.18), transparent 24rem),
      linear-gradient(90deg, rgba(2, 3, 10, 0.99) 0%, rgba(2, 3, 10, 0.9) 48%, rgba(2, 3, 10, 0.72) 100%),
      linear-gradient(180deg, rgba(2, 3, 10, 0.36) 0%, rgba(2, 3, 10, 0.96) 100%);
  }

  .feature-section {
    grid-template-columns: 1fr;
    margin-top: -70px;
  }
}

@media (max-width: 760px) {
  .site-header {
    width: min(100% - 24px, 1180px);
    min-height: 70px;
  }

  .site-header::before {
    inset: 8px -8px;
    border-radius: 18px;
  }

  .brand-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
  }

  .main-nav {
    gap: 12px;
    font-size: 0.82rem;
  }

  .main-nav a:nth-child(2) {
    display: none;
  }

  .hero-section {
    min-height: 100svh;
    padding: 104px 16px 72px;
  }

  .hero-art {
    width: 100vw;
    opacity: 0.5;
    background-position: 65% center;
    transform: scale(1.04);
  }

  .hero-overlay {
    background:
      radial-gradient(circle at 75% 24%, rgba(168, 85, 247, 0.14), transparent 18rem),
      linear-gradient(90deg, rgba(2, 3, 10, 0.99) 0%, rgba(2, 3, 10, 0.9) 58%, rgba(2, 3, 10, 0.84) 100%),
      linear-gradient(180deg, rgba(2, 3, 10, 0.45) 0%, rgba(2, 3, 10, 0.96) 100%);
  }

  .hero-layout {
    min-height: auto;
  }

  h1 {
    font-size: clamp(3.15rem, 16vw, 4.8rem);
  }

  .signup-row {
    flex-direction: column;
  }

  .signup-row button {
    width: 100%;
  }

  .feature-section {
    width: min(100% - 24px, 1180px);
    margin-top: -34px;
    padding: 18px;
    border-radius: 16px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: auto;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    width: min(100% - 24px, 1180px);
  }
}

@media (max-width: 460px) {
  .brand span {
    display: none;
  }

  .main-nav {
    margin-left: auto;
  }

  .status-badge {
    margin-bottom: 14px;
  }

  .hero-subline {
    font-size: 1.02rem;
  }

  .newsletter-form {
    padding: 14px;
  }
}