:root {
  --bg-main: #050814;
  --bg-alt: #070b18;
  --accent: #19c2b8;
  --accent-soft: rgba(25, 194, 184, 0.2);
  --text-main: #f5f7fb;
  --text-muted: #a6afc7;
  --border-subtle: #1a2135;
  --font-main: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-main);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

body {
  line-height: 1.6;
}

/* Accessibility helper */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Honeypot wrapper (hidden from real users) */

.hp-wrapper {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* HERO – centered monolith */

.hero {
  position: relative;
  min-height: 100vh;
  background: radial-gradient(circle at top, #101633 0, var(--bg-main) 55%, #000 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1.5rem;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(25, 194, 184, 0.12), transparent 60%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 520px;
  margin: 0 auto;
}

.hero-logo {
  width: 160px;
  margin: 0 auto 1.75rem auto;
  filter: drop-shadow(0 0 18px rgba(25, 194, 184, 0.6));
}

.hero-title {
  font-size: clamp(2.6rem, 5vw, 3.4rem);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-subtitle {
  margin-top: 1.25rem;
  color: var(--text-muted);
}

.hero-tagline {
  margin-top: 0.35rem;
  color: var(--accent);
  font-weight: 500;
}

.ghost-button {
  margin-top: 2.25rem;
  padding: 0.8rem 2.2rem;
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  font-size: 0.9rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease;
}

.ghost-button:hover,
.ghost-button:focus-visible {
  background: var(--accent);
  color: #020308;
  transform: translateY(-1px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6);
}

.ghost-button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Centered sections */

.section {
  padding: 4rem 1.5rem;
}

.centered-section {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-main);
  border-top: 1px solid var(--border-subtle);
}

.centered-section:first-of-type {
  border-top: none;
}

.centered-section.subtle-section {
  background: var(--bg-alt);
}

.centered-inner {
  max-width: 560px;
  text-align: center;
  margin: 0 auto;
}

.centered-inner h2 {
  font-size: 1.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.centered-inner p {
  color: var(--text-muted);
}

/* Visual section */

.visual-section {
  position: relative;
  padding: 4rem 1.5rem;
  background: #02040a;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.visual-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(2, 4, 10, 0.9), rgba(2, 4, 10, 0.98));
  pointer-events: none;
}

.visual-inner {
  position: relative;
  z-index: 1;
  max-width: 420px;
  margin: 0 auto;
  text-align: center;
}

.visual-image {
  border-radius: 1rem;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.7);
  margin-bottom: 1.5rem;
}

.visual-text {
  color: var(--accent);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.9rem;
}

/* Notify */

.notify-form {
  margin-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.notify-form input[type="email"] {
  flex: 1 1 220px;
  max-width: 280px;
  padding: 0.75rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: #050818;
  color: var(--text-main);
  outline: none;
  font-size: 0.95rem;
}

.notify-form input[type="email"]:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent-soft);
}

.notify-form button {
  padding: 0.75rem 1.6rem;
  border-radius: 999px;
  border: none;
  background: var(--accent);
  color: #020308;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: background 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease;
}

.notify-form button:hover,
.notify-form button:focus-visible {
  background: #15a89f;
  transform: translateY(-1px);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.6);
}

.notify-form button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.form-message {
  width: 100%;
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

/* Footer */

.footer {
  border-top: 1px solid var(--border-subtle);
  background: #020308;
  padding: 1.5rem 1.5rem;
}

.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Responsive */

@media (max-width: 600px) {
  .hero {
    min-height: 90vh;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}