:root {
  --bg: #020617;
  --glass-bg: rgba(15, 23, 42, 0.6);
  --glass-border: rgba(148, 163, 184, 0.4);
  --accent: #38bdf8;
  --accent-soft: rgba(56, 189, 248, 0.3);
  --text-main: #e5e7eb;
  --text-soft: #9ca3af;
  --radius-lg: 24px;
  --radius-md: 18px;
  --shadow-soft: 0 24px 60px rgba(15, 23, 42, 0.8);
  --blur: 22px;
  --transition-fast: 200ms ease-out;
  --transition-med: 350ms ease-out;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Inter", sans-serif;
  background: radial-gradient(circle at top, #0f172a 0, #020617 55%, #000 100%);
  color: var(--text-main);
  min-height: 100%;
}

body {
  position: relative;
  overflow-x: hidden;
}

/* Liquid background blobs */

.bg {
  position: fixed;
  inset: 0;
  overflow: hidden;
  z-index: -2;
}

.blob {
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 999px;
  filter: blur(40px);
  opacity: 0.7;
  mix-blend-mode: screen;
  background: radial-gradient(circle at 30% 30%, #38bdf8, transparent 60%);
  animation: float 18s infinite alternate ease-in-out;
}

.blob-1 {
  top: -80px;
  left: -60px;
}

.blob-2 {
  bottom: -120px;
  right: -80px;
  background: radial-gradient(circle at 30% 30%, #a855f7, transparent 60%);
  animation-duration: 22s;
}

.blob-3 {
  top: 40%;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle at 30% 30%, #22c55e, transparent 60%);
  animation-duration: 26s;
}

@keyframes float {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(40px, -30px, 0) scale(1.05);
  }
  100% {
    transform: translate3d(-30px, 20px, 0) scale(0.98);
  }
}

/* Glassmorphism core */

.glass {
  background: linear-gradient(
      135deg,
      rgba(15, 23, 42, 0.85),
      rgba(15, 23, 42, 0.55)
    );
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
}

/* Layout */

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 7vw;
  background: linear-gradient(
    to bottom,
    rgba(2, 6, 23, 0.9),
    rgba(2, 6, 23, 0.4),
    transparent
  );
  backdrop-filter: blur(18px);
}

.nav-logo {
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.9rem;
  color: var(--text-soft);
}

.nav-logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 18px;
  align-items: center;
}

.nav-links a {
  color: var(--text-soft);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 6px 10px;
  border-radius: 999px;
  transition: color var(--transition-fast), background var(--transition-fast),
    transform var(--transition-fast);
}

.nav-links a:hover {
  color: var(--text-main);
  background: rgba(15, 23, 42, 0.7);
  transform: translateY(-1px);
}

.nav-cta {
  border: 1px solid var(--accent-soft);
  background: radial-gradient(circle at top left, var(--accent-soft), transparent);
}

.main {
  max-width: 1120px;
  margin: 40px auto 80px;
  padding: 0 16px 40px;
}

/* Hero */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 2.1fr) minmax(0, 1.4fr);
  gap: 28px;
  padding: 32px 32px 28px;
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at top right,
    rgba(56, 189, 248, 0.18),
    transparent 55%
  );
  opacity: 0.9;
  pointer-events: none;
}

.hero-content,
.hero-side {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  line-height: 1.05;
  margin: 0 0 12px;
}

.hero h1 span {
  color: var(--accent);
}

.hero p {
  margin: 0 0 18px;
  color: var(--text-soft);
  max-width: 32rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.75rem;
  color: var(--text-soft);
}

.hero-tags span {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: rgba(15, 23, 42, 0.7);
}

/* Hero side */

.hero-side {
  padding: 18px 18px 16px;
  border-radius: var(--radius-md);
  background: linear-gradient(
      145deg,
      rgba(15, 23, 42, 0.9),
      rgba(15, 23, 42, 0.6)
    ),
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.2), transparent);
}

.hero-side h2 {
  font-size: 1.1rem;
  margin: 0 0 10px;
}

.hero-side ul {
  list-style: none;
  padding: 0;
  margin: 0;
  color: var(--text-soft);
  font-size: 0.9rem;
}

.hero-side li {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.hero-side li::before {
  content: "•";
  color: var(--accent);
}

/* Sections */

.section {
  margin-top: 32px;
  padding: 24px 24px 26px;
}

.section h2 {
  margin: 0 0 8px;
  font-size: 1.4rem;
}

.section-sub {
  margin: 0 0 18px;
  color: var(--text-soft);
  font-size: 0.9rem;
}

/* Cards */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
}

.card {
  padding: 18px 18px 20px;
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at top left,
    rgba(56, 189, 248, 0.16),
    transparent 55%
  );
  opacity: 0;
  transition: opacity var(--transition-med);
}

.card:hover::before {
  opacity: 1;
}

.card h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.card p {
  margin: 0 0 10px;
  color: var(--text-soft);
  font-size: 0.9rem;
}

.card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--text-soft);
  font-size: 0.85rem;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 0.9rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast),
    transform var(--transition-fast), box-shadow var(--transition-fast),
    border-color var(--transition-fast);
}

.btn.primary {
  background: radial-gradient(circle at top left, #38bdf8, #0ea5e9);
  color: #0b1120;
  box-shadow: 0 14px 40px rgba(56, 189, 248, 0.45);
}

.btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 50px rgba(56, 189, 248, 0.6);
}

.btn.ghost {
  border-color: rgba(148, 163, 184, 0.6);
  color: var(--text-soft);
  background: rgba(15, 23, 42, 0.7);
}

.btn.ghost:hover {
  color: var(--text-main);
  border-color: var(--accent-soft);
  background: rgba(15, 23, 42, 0.9);
}

.btn.full {
  width: 100%;
}

/* Form */

.form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.form input,
.form textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: rgba(15, 23, 42, 0.8);
  color: var(--text-main);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition-fast),
    box-shadow var(--transition-fast), background var(--transition-fast);
}

.form input:focus,
.form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.4);
  background: rgba(15, 23, 42, 0.95);
}

/* Footer */

.footer {
  text-align: center;
  padding: 18px 16px 26px;
  font-size: 0.8rem;
  color: var(--text-soft);
}

/* Responsive */

@media (max-width: 840px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-side {
    order: -1;
  }

  .nav {
    padding-inline: 16px;
  }

  .nav-links {
    gap: 10px;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }

  .hero {
    padding: 22px 18px 20px;
  }

  .section {
    padding: 18px 16px 20px;
  }

  .cards {
    grid-template-columns: minmax(0, 1fr);
  }
}