:root {
  --bg: #0f1115;
  --bg-elevated: #171a21;
  --text: #f2f3f5;
  --text-muted: #a4a9b3;
  --accent: #4ade80;
  --accent-text: #0f1115;
  --border: #2a2e37;
  --error: #f87171;
  --radius: 12px;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #fafaf9;
    --bg-elevated: #ffffff;
    --text: #16181d;
    --text-muted: #5b616e;
    --accent: #16a34a;
    --accent-text: #ffffff;
    --border: #e4e5e8;
    color-scheme: light;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 20px;
}

.hero {
  padding: 64px 0 48px;
}

.eyebrow {
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.02em;
  margin: 0 0 12px;
  font-size: 0.9rem;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  line-height: 1.15;
  margin: 0 0 16px;
  font-weight: 800;
}

.lede {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 56ch;
  margin: 0 0 32px;
}

form {
  max-width: 420px;
}

.field {
  margin-bottom: 12px;
}

/* Honeypot: fora do ecrã, mas presente no DOM para os bots. */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 6px;
  color: var(--text-muted);
}

input[type="email"] {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 1rem;
}

input[type="email"]:focus,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 16px 0 20px;
  font-size: 0.9rem;
  color: var(--text-muted);
  cursor: pointer;
}

.consent input {
  margin-top: 3px;
  flex-shrink: 0;
}

button {
  width: 100%;
  padding: 14px 20px;
  border: none;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-text);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

button:not(:disabled):hover {
  filter: brightness(1.05);
}

.form-status {
  min-height: 1.2em;
  margin: 10px 0 0;
  font-size: 0.9rem;
}

.form-status[data-state="success"] {
  color: var(--accent);
}

.form-status[data-state="error"] {
  color: var(--error);
}

.features {
  border-top: 1px solid var(--border);
  padding: 48px 0;
}

.features .wrap {
  display: grid;
  gap: 28px;
}

.feature h2 {
  font-size: 1.1rem;
  margin: 0 0 6px;
}

.feature p {
  color: var(--text-muted);
  margin: 0;
}

footer {
  padding: 32px 20px 48px;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}