/* NoBonk — minimal light design (matches the original Lovable "Fuel Flow Landing") */
:root {
  --black: #0a0a0a;
  --gray-900: #171717;
  --gray-600: #525252;
  --gray-400: #a3a3a3;
  --gray-200: #e5e5e5;
  --gray-100: #f5f5f5;
  --lime: #b9f36e;
  --lime-deep: #a5ec4f;
  --radius: 10px;
  --maxw: 1000px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #fff;
  color: var(--black);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Nav ---------- */
nav {
  border-bottom: 1px solid var(--gray-200);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 50;
}

nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  min-height: 54px;
  flex-wrap: nowrap;
}

nav .logo {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--black);
}

nav ul {
  display: flex;
  list-style: none;
  gap: clamp(12px, 3vw, 26px);
  justify-content: flex-end;
}

nav a {
  color: var(--gray-600);
  text-decoration: none;
  font-size: 0.84rem;
  font-weight: 500;
  white-space: nowrap;
}

nav a:hover { color: var(--black); }

/* ---------- Hero (single screen) ---------- */
.hero {
  min-height: calc(100svh - 55px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 20px 32px;
}

.hero-inner {
  width: 100%;
  max-width: 430px;
  display: flex;
  flex-direction: column;
}

.wordmark {
  font-size: clamp(3rem, 10vw, 4.5rem);
  font-weight: 900;
  letter-spacing: -0.045em;
  line-height: 1;
  text-align: center;
  margin-bottom: 14px;
}

.tagline {
  text-align: center;
  font-size: clamp(1.05rem, 2.5vw, 1.25rem);
  color: var(--gray-900);
  margin-bottom: 40px;
}

#signup-form label[for="phone"] {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 8px;
}

#signup-form input[type="tel"] {
  width: 100%;
  padding: 14px 16px;
  font-size: 1rem;
  font-family: inherit;
  color: var(--black);
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  outline: none;
  margin-bottom: 18px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

#signup-form input[type="tel"]::placeholder { color: var(--gray-400); }

#signup-form input[type="tel"]:focus {
  border-color: var(--black);
  box-shadow: 0 0 0 3px rgba(10, 10, 10, 0.06);
}

#signup-form button {
  display: block;
  width: 100%;
  padding: 15px;
  font-size: 1.02rem;
  font-weight: 700;
  font-family: inherit;
  color: var(--black);
  background: var(--lime);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  margin-bottom: 16px;
}

#signup-form button:hover { background: var(--lime-deep); }
#signup-form button:active { transform: translateY(1px); }

#signup-form .consent {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  font-size: 0.72rem;
  line-height: 1.5;
  color: var(--gray-600);
  margin-bottom: 18px;
}

#signup-form .consent input {
  margin-top: 3px;
  flex-shrink: 0;
  width: 15px;
  height: 15px;
  accent-color: var(--black);
}

#signup-form .consent a { color: var(--black); font-weight: 600; }

#signup-status {
  text-align: center;
  min-height: 1.3em;
  font-size: 0.88rem;
  color: var(--gray-900);
}

.hero-footnote {
  text-align: center;
  font-size: 0.75rem;
  color: var(--gray-400);
  margin-top: 26px;
}

.hero-footnote a { color: var(--gray-600); }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--gray-200);
  padding: 22px 0 30px;
  color: var(--gray-400);
  font-size: 0.78rem;
}

footer .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

footer a {
  color: var(--gray-600);
  text-decoration: none;
  margin-right: 14px;
}

footer a:hover { color: var(--black); }

/* ---------- Content pages (privacy, terms, contact) ---------- */
main.container {
  max-width: 780px;
  padding: 40px 20px 72px;
}

main.container h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

main.container h2 {
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  margin: 34px 0 10px;
  padding-top: 22px;
  border-top: 1px solid var(--gray-200);
}

main.container h3 {
  font-size: 1rem;
  margin: 18px 0 6px;
}

main.container p, main.container li {
  color: var(--gray-600);
  font-size: 0.94rem;
}

main.container p { margin-bottom: 10px; }

main.container ul, main.container ol {
  padding-left: 22px;
  margin-bottom: 12px;
}

main.container li { margin-bottom: 6px; }

main.container a { color: var(--black); }

main.container strong { color: var(--black); }

.warning-box, .acknowledgment-box, .disclaimer-section, .contact-methods, .faq-section, .disclaimer {
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-left: 3px solid var(--black);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 16px 0;
}

.disclaimer h3 { margin-top: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 560px) {
  nav ul { gap: 12px; }
  nav a { font-size: 0.78rem; }
}

/* ---------- Print ---------- */
@media print {
  nav, footer { display: none; }
  main.container { margin: 0; }
}