:root {
  --lime: #b8ff3d;
  --lime-fixed: #b1f735;
  --lime-dim: #96da08;
  --on-lime: #121f00;
  --cyan: #31d6c7;
  --cyan-bright: #40dfd0;
  --neutral: #07110d;
  --bg: #0b1511;
  --panel: #101c17;
  --elevated: #17261f;
  --surface-high: #222c28;
  --surface-highest: #2c3732;
  --on-surface: #d9e5de;
  --on-variant: #c2caaf;
  --outline: #8c947b;
  --outline-variant: #424935;
  --font-display: 'Archivo Narrow', 'Arial Narrow', sans-serif;
  --font-body: 'Hanken Grotesk', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-btn: 12px;
  --radius-card: 16px;
  --space: 4px;
  --max: 1120px;
  --nav-h: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--on-surface);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 12px 16px;
  background: var(--lime);
  color: var(--on-lime);
  font-weight: 700;
}

.skip-link:focus {
  left: 16px;
  top: 16px;
}

.container {
  width: min(100% - 40px, var(--max));
  margin-inline: auto;
}

@media (min-width: 900px) {
  .container {
    width: min(100% - 80px, var(--max));
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 12px 24px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition:
    transform 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease;
}

.btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--lime);
  color: var(--on-lime);
  box-shadow: 0 0 24px rgba(177, 247, 53, 0.22);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 32px rgba(177, 247, 53, 0.35);
}

.btn-ghost {
  background: transparent;
  color: var(--cyan);
  border-color: rgba(49, 214, 199, 0.55);
}

.btn-ghost:hover {
  background: rgba(49, 214, 199, 0.08);
  border-color: var(--cyan);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lime);
}

.display {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
}

.section-lead {
  margin: 0;
  max-width: 42rem;
  color: var(--on-variant);
  font-size: 1.05rem;
  line-height: 1.6;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  backdrop-filter: blur(14px);
  background: rgba(11, 21, 17, 0.78);
  border-bottom: 1px solid rgba(44, 55, 50, 0.8);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  font-style: italic;
  color: var(--lime);
  letter-spacing: 0.02em;
}

.brand img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.nav {
  display: none;
  gap: 8px;
  margin-left: 12px;
}

.nav-link {
  padding: 8px 12px;
  border-radius: var(--radius-md);
  color: var(--on-variant);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 160ms ease, background 160ms ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--on-surface);
  background: rgba(177, 247, 53, 0.08);
}

.nav-link.active {
  color: var(--lime);
}

.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-sm {
  min-height: 40px;
  padding: 8px 14px;
  font-size: 0.9rem;
}

.lang {
  position: relative;
}

.lang summary {
  list-style: none;
  cursor: pointer;
  min-height: 40px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--outline-variant);
  color: var(--on-variant);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.lang summary::-webkit-details-marker {
  display: none;
}

.lang[open] summary {
  border-color: var(--lime-dim);
  color: var(--lime);
}

.lang ul {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  margin: 0;
  padding: 8px;
  list-style: none;
  min-width: 160px;
  background: var(--elevated);
  border: 1px solid var(--surface-highest);
  border-radius: var(--radius-card);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.lang a {
  display: block;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  color: var(--on-surface);
  font-size: 0.92rem;
}

.lang a:hover,
.lang a[aria-current='page'] {
  background: rgba(177, 247, 53, 0.1);
  color: var(--lime);
}

@media (min-width: 760px) {
  .nav {
    display: flex;
  }
}

@media (max-width: 480px) {
  .btn-sm {
    display: none;
  }
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100svh - var(--nav-h));
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-color: #07110d;
  background-image: url('/assets/hero-banner.png');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.hero-veil {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(
      180deg,
      rgba(7, 17, 13, 0.35) 0%,
      rgba(7, 17, 13, 0.15) 35%,
      rgba(7, 17, 13, 0.55) 70%,
      rgba(7, 17, 13, 0.88) 100%
    ),
    linear-gradient(
      90deg,
      rgba(7, 17, 13, 0.72) 0%,
      rgba(7, 17, 13, 0.35) 42%,
      rgba(7, 17, 13, 0.15) 100%
    );
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-block: 72px 64px;
  max-width: 720px;
  margin-right: auto;
}

.brand-mark {
  font-size: clamp(3.2rem, 10vw, 6.5rem);
  color: var(--lime);
  font-style: italic;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.55), 0 0 40px rgba(177, 247, 53, 0.25);
  margin: 0 0 12px;
  line-height: 0.95;
}

.hero-title {
  font-size: clamp(1.7rem, 4.2vw, 2.75rem);
  max-width: 14ch;
  margin: 0 0 16px;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.55);
}

.hero-sub {
  margin: 0 0 28px;
  max-width: 38rem;
  color: var(--on-variant);
  font-size: clamp(1rem, 2vw, 1.15rem);
  line-height: 1.65;
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.5);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

[data-animate] {
  opacity: 0;
  transform: translateY(18px);
  animation: rise 700ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

[data-animate]:nth-child(1) { animation-delay: 80ms; }
[data-animate]:nth-child(2) { animation-delay: 180ms; }
[data-animate]:nth-child(3) { animation-delay: 280ms; }
[data-animate]:nth-child(4) { animation-delay: 380ms; }

@keyframes rise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 900px) {
  .hero-content {
    padding-block: 80px 72px;
  }
}

@media (max-width: 700px) {
  .hero-bg {
    background-position: 70% center;
  }
}

@media (prefers-reduced-motion: reduce) {
  [data-animate] {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

/* Home sections */
.how,
.modes {
  padding: 88px 0 24px;
}

.steps {
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.step {
  padding: 24px;
  border-left: 2px solid var(--lime);
  background: linear-gradient(90deg, rgba(177, 247, 53, 0.06), transparent 70%);
}

.step-n {
  font-family: var(--font-mono);
  color: var(--lime);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}

.step h3 {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-size: 1.35rem;
}

.step p {
  margin: 0;
  color: var(--on-variant);
}

.modes {
  padding-bottom: 72px;
}

.modes-head {
  display: grid;
  gap: 28px;
  margin-bottom: 28px;
}

.modes-visual {
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--surface-highest);
  min-height: 220px;
}

.modes-visual img {
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
  filter: saturate(0.75) brightness(0.85);
}

.mode-list {
  display: grid;
  gap: 12px;
}

.mode {
  padding: 22px 24px;
  border-radius: var(--radius-card);
  background: var(--panel);
  border: 1px solid var(--elevated);
}

.mode.lime {
  box-shadow: inset 3px 0 0 var(--lime);
}

.mode.cyan {
  box-shadow: inset 3px 0 0 var(--cyan);
}

.mode h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 1.25rem;
}

.mode.lime h3 { color: var(--lime); }
.mode.cyan h3 { color: var(--cyan); }

.mode p {
  margin: 0;
  color: var(--on-variant);
}

.cta-band {
  padding: 56px 0 72px;
}

.cta-inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: flex-start;
  padding: 36px;
  border-radius: var(--radius-card);
  background:
    radial-gradient(ellipse at top right, rgba(49, 214, 199, 0.14), transparent 50%),
    linear-gradient(135deg, var(--elevated), var(--panel));
  border: 1px solid var(--surface-highest);
}

@media (min-width: 800px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .step {
    border-left: none;
    border-top: 2px solid var(--lime);
    background: linear-gradient(180deg, rgba(177, 247, 53, 0.07), transparent 65%);
  }

  .modes-head {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: end;
  }

  .mode-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .cta-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* Footer */
.site-footer {
  margin-top: 80px;
  border-top: 1px solid var(--surface-highest);
  background: linear-gradient(180deg, var(--bg), var(--neutral));
  padding: 40px 0 48px;
}

.footer-inner {
  display: grid;
  gap: 28px;
}

.footer-brand {
  display: flex;
  gap: 12px;
  align-items: center;
}

.footer-brand strong {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--lime);
  font-size: 1.2rem;
}

.footer-brand p {
  margin: 2px 0 0;
  color: var(--on-variant);
  font-size: 0.9rem;
}

.footer-nav {
  display: flex;
  gap: 16px;
}

.footer-nav a {
  color: var(--on-variant);
}

.footer-nav a:hover {
  color: var(--cyan);
}

.footer-meta {
  color: var(--outline);
  font-size: 0.85rem;
}

.footer-meta p {
  margin: 0;
  white-space: nowrap;
}

.bunlabs {
  color: var(--lime);
  font-weight: 600;
  text-decoration: none;
}

.bunlabs:hover {
  color: var(--cyan);
}

@media (min-width: 800px) {
  .footer-inner {
    grid-template-columns: minmax(0, 1fr) auto max-content;
    align-items: center;
    gap: 24px;
  }

  .footer-meta {
    text-align: right;
    justify-self: end;
  }
}

@media (max-width: 799px) {
  .footer-meta p {
    white-space: normal;
  }
}

/* Contact */
.contact {
  padding: 56px 0 40px;
}

.contact-grid {
  display: grid;
  gap: 40px;
}

.contact .section-title {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
}

.waitlist {
  margin-top: 32px;
  padding: 24px;
  border-radius: var(--radius-card);
  background:
    radial-gradient(ellipse at top left, rgba(184, 255, 61, 0.12), transparent 55%),
    linear-gradient(160deg, var(--elevated), var(--panel));
  border: 1px solid rgba(177, 247, 53, 0.28);
  box-shadow: 0 0 32px rgba(177, 247, 53, 0.08);
}

.waitlist-text {
  margin: 8px 0 16px;
  color: var(--on-variant);
  line-height: 1.55;
}

.waitlist-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.waitlist-form input {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--outline-variant);
  background: rgba(6, 16, 12, 0.65);
  color: var(--on-surface);
  outline: none;
}

.waitlist-form input:focus {
  border-color: var(--lime-dim);
  box-shadow: 0 0 0 3px rgba(177, 247, 53, 0.15);
}

.waitlist-form .btn {
  width: 100%;
}

@media (min-width: 520px) {
  .waitlist-form {
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: stretch;
    gap: 12px;
  }

  .waitlist-form input {
    flex: 1 1 auto;
    width: auto;
  }

  .waitlist-form .btn {
    width: auto;
    flex: 0 0 auto;
  }
}

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

.direct {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--surface-highest);
}

.mail {
  display: inline-block;
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.5vw, 1.45rem);
  font-weight: 700;
  color: var(--cyan);
  word-break: break-all;
}

.mail:hover {
  color: var(--cyan-bright);
}

.hint {
  margin: 0;
  color: var(--outline);
  font-size: 0.9rem;
}

.form {
  display: grid;
  gap: 16px;
  padding: 28px;
  border-radius: var(--radius-card);
  background: linear-gradient(180deg, var(--elevated), var(--panel));
  border: 1px solid var(--surface-highest);
}

.form-heading {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
}

.form label {
  display: grid;
  gap: 8px;
}

.form label span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-variant);
}

.form input,
.form textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--outline-variant);
  background: rgba(6, 16, 12, 0.65);
  color: var(--on-surface);
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.form input::placeholder,
.form textarea::placeholder {
  color: var(--outline);
}

.form input:focus,
.form textarea:focus {
  border-color: var(--lime-dim);
  box-shadow: 0 0 0 3px rgba(177, 247, 53, 0.15);
}

.form textarea {
  resize: vertical;
  min-height: 140px;
}

.form-status {
  margin: 8px 0 0;
  font-size: 0.92rem;
}

.form-status[data-state='ok'] {
  color: var(--cyan);
}

.form-status[data-state='error'] {
  color: #ffb4ab;
}

@media (min-width: 880px) {
  .contact-grid {
    grid-template-columns: 0.95fr 1.05fr;
    align-items: start;
    gap: 56px;
  }
}

.waitlist-form .btn:disabled {
  opacity: 0.6;
  cursor: wait;
  transform: none;
}


/* Legal / privacy */
.legal {
  padding: 56px 0 40px;
}

.legal-inner {
  max-width: 720px;
}

.legal .section-title {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
}

.legal-updated {
  margin: 0 0 36px;
  color: var(--outline);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}

.legal-section {
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--surface-highest);
}

.legal-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.legal-section h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--lime);
}

.legal-section p {
  margin: 0 0 10px;
  color: var(--on-variant);
  line-height: 1.65;
}

.legal-section p:last-child {
  margin-bottom: 0;
}