/* ── CSS Custom Properties ── */
:root {
  --bg-dark: #111111;
  --bg-signup: #1a1a1a;
  --bg-footer: #141414;
  --text-primary: #e0e0e0;
  --text-muted: #999999;
  --accent-green: #22c55e;
  --accent-red: #ef4444;
  --accent-yellow: #eab308;
  --accent-amber: #f59e0b;
  --font-mono: 'Noto Sans Mono', monospace;
}

/* ── Reset ── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-mono);
  color: var(--text-primary);
  background: var(--bg-dark);
  -webkit-font-smoothing: antialiased;
}

/* ── Hero Section ── */
.hero {
  position: relative;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-image: url('/images/splash.png');
  background-size: cover;
  background-position: center;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 2rem;
  margin-top: auto;
}

.hero-title {
  font-size: clamp(2rem, 6vw, 5rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--text-primary);
}

.hero-symbols {
  width: clamp(120px, 20vw, 250px);
  margin-top: 1rem;
}

.hero-tagline {
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  font-weight: 400;
  color: var(--text-muted);
  margin-top: 1rem;
}

/* ── Signup (inside hero) ── */
.hero-signup {
  margin-top: 5rem;
}

.signup-heading {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--accent-green);
}

.signup-fallback {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.sender-form-field {
  max-width: 500px;
  margin: 0 auto;
}

/* ── Social Links (inside hero) ── */
.social {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.social a {
  color: var(--text-primary);
  transition: color 0.2s ease;
}

.social a:hover {
  color: #ffffff;
}

.social svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

/* ── Footer ── */
.footer {
  position: relative;
  z-index: 1;
  width: 100%;
  margin-top: auto;
  padding: 1rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}