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

:root {
  --bg: #0a0a0a;
  --surface: #111111;
  --border: #222222;
  --text: #f0f0f0;
  --muted: #888888;
  --accent: #6366f1;
  --accent-hover: #4f52e0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.container {
  width: 100%;
  max-width: 560px;
  padding: 2rem;
  text-align: center;
}

.logo {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 3rem;
}

h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 1rem;
}

p {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.notify-form {
  display: flex;
  gap: 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.35rem;
}

.notify-form input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 0.65rem 0.75rem;
  color: var(--text);
  font-size: 0.95rem;
}

.notify-form input::placeholder {
  color: var(--muted);
}

.notify-form button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.65rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
  white-space: nowrap;
}

.notify-form button:hover {
  background: var(--accent-hover);
}

.success-msg {
  display: none;
  color: var(--accent);
  font-size: 0.9rem;
  margin-top: 0.75rem;
  margin-bottom: 0;
}

.success-msg.visible {
  display: block;
}

@media (max-width: 480px) {
  .notify-form {
    flex-direction: column;
  }
}