:root {
  --ink: #152029;
  --ink-soft: #3a4a57;
  --paper: #f3efe6;
  --sand: #e7dfd0;
  --copper: #b85c2e;
  --teal: #1f6b66;
  --teal-bright: #2f9a92;
  --line: rgba(21, 32, 41, 0.12);
  --font-brand: "Syne", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
}

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  overflow-x: hidden;
}

a {
  color: inherit;
}

.sky {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1200px 600px at 12% -10%, rgba(47, 154, 146, 0.28), transparent 60%),
    radial-gradient(900px 500px at 88% 8%, rgba(184, 92, 46, 0.22), transparent 55%),
    linear-gradient(180deg, #dfe9ea 0%, var(--paper) 42%, var(--sand) 100%);
}

.sky__glow {
  position: absolute;
  width: 42vw;
  height: 42vw;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.45;
  animation: drift 18s ease-in-out infinite alternate;
}

.sky__glow--a {
  top: -8%;
  left: -6%;
  background: rgba(47, 154, 146, 0.55);
}

.sky__glow--b {
  top: 4%;
  right: -10%;
  background: rgba(184, 92, 46, 0.4);
  animation-delay: -6s;
  animation-duration: 22s;
}

.sky__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(21, 32, 41, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 32, 41, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 70%);
  animation: grid-shift 28s linear infinite;
}

@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(4vw, 3vh, 0) scale(1.08); }
}

@keyframes grid-shift {
  from { background-position: 0 0, 0 0; }
  to { background-position: 48px 24px, 48px 24px; }
}

.hero {
  max-width: 920px;
  margin: 0 auto;
  padding: clamp(4.5rem, 14vh, 8rem) 1.5rem 2.5rem;
}

.hero__brand {
  margin: 0;
  max-width: 100%;
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: clamp(2.35rem, 7.2vw, 4.75rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
  animation: rise 0.9s ease both;
}

.hero__lead {
  margin: 1.1rem 0 0;
  max-width: 34rem;
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  color: var(--ink-soft);
  animation: rise 1s ease 0.08s both;
}

.hero__addr {
  margin: 1.75rem 0 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.45rem;
  color: var(--ink-soft);
  font-size: 1rem;
  animation: rise 1.05s ease 0.14s both;
}

.hero__addr-label {
  font-size: 0.95rem;
}

.copy {
  appearance: none;
  border: 0;
  background: rgba(255, 255, 255, 0.5);
  padding: 0.45rem 0.7rem;
  font: inherit;
  font-weight: 700;
  font-family: ui-monospace, "Cascadia Mono", "Segoe UI Mono", Consolas, monospace;
  font-size: 0.98rem;
  color: var(--ink);
  cursor: pointer;
  border-radius: 0.35rem;
  border: 1.5px solid var(--line);
  max-width: 100%;
  overflow-wrap: anywhere;
  text-align: left;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.copy:hover {
  color: var(--teal);
  border-color: rgba(31, 107, 102, 0.45);
  background: rgba(255, 255, 255, 0.75);
}

.copy.is-copied {
  color: var(--teal-bright);
  border-color: rgba(47, 154, 146, 0.55);
}

.hero__port {
  margin: 0;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
  animation: rise 1.1s ease 0.2s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1.25rem;
  border-radius: 0.35rem;
  font-weight: 700;
  font-size: 0.98rem;
  text-decoration: none;
  border: 1.5px solid transparent;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:focus-visible {
  outline: 2px solid var(--teal-bright);
  outline-offset: 3px;
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.45);
  border-color: var(--line);
  color: var(--ink);
  backdrop-filter: blur(8px);
}

.btn--ghost:hover {
  border-color: rgba(31, 107, 102, 0.45);
  background: rgba(255, 255, 255, 0.7);
}

.foot {
  max-width: 920px;
  margin: 0 auto;
  padding: 2rem 1.5rem 2.5rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: clamp(3.2rem, 10vh, 5rem);
  }

  .hero__brand {
    font-size: clamp(2.15rem, 11.5vw, 2.85rem);
    letter-spacing: -0.015em;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}