/* ---------- Design tokens ---------- */
:root {
  --bg: #0A0A0A;
  --surface: #141414;
  --surface-border: #262626;
  --accent: #39FF88;
  --accent-dim: #1F8C4C;
  --text: #EDEDED;
  --text-muted: #8A8A8A;
  --danger: #FF6B6B;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', monospace;

  --container-width: 1080px;
  --radius: 10px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  margin: 0;
}

p {
  margin: 0;
}

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

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 24px;
}

/* ---------- Accessibility: focus & motion ---------- */
a, button, input, textarea {
  font-family: inherit;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #06210F;
  padding: 12px 20px;
  z-index: 100;
  font-weight: 600;
  border-radius: 0 0 8px 0;
}

.skip-link:focus {
  left: 0;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* ---------- Header ---------- */
.site-header {
  padding-block: 20px;
  border-bottom: 1px solid var(--surface-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.wordmark-accent {
  color: var(--accent);
}

.lang-toggle {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--surface-border);
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.lang-toggle:hover {
  color: var(--accent);
  border-color: var(--accent-dim);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.15s ease, transform 0.15s ease, opacity 0.15s ease;
}

.btn-primary {
  background: var(--accent);
  color: #06210F;
  padding: 14px 28px;
}

.btn-primary:hover {
  background: var(--accent-dim);
  color: var(--text);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ---------- Hero ---------- */
.hero {
  padding-block: 72px 56px;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
}

.hero-headline {
  font-size: clamp(2rem, 5vw, 3.25rem);
  max-width: 18ch;
}

.hero-subheadline {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-muted);
  max-width: 48ch;
}

.hero-cta {
  margin-top: 8px;
}

.hero-tagline {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ---------- Terminal (signature element) ---------- */
.terminal {
  width: 100%;
  max-width: 640px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: left;
  box-shadow: 0 0 0 1px rgba(57, 255, 136, 0.03), 0 20px 60px -20px rgba(57, 255, 136, 0.12);
}

.terminal-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: #1A1A1A;
  border-bottom: 1px solid var(--surface-border);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #3A3A3A;
}

.terminal-title {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.terminal-body {
  padding: 20px;
  min-height: 168px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}

.terminal-line {
  color: var(--text);
}

.terminal-timestamp {
  color: var(--accent);
}

.terminal-cursor {
  display: inline-block;
  width: 7px;
  height: 1em;
  background: var(--accent);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 1s step-start infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* ---------- Pains ---------- */
.pains {
  padding-block: 56px;
  border-top: 1px solid var(--surface-border);
}

.pains-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 640px) {
  .pains-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.pain-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 24px;
}

.pain-card p {
  font-size: 1.05rem;
}

/* ---------- How it works ---------- */
.how {
  padding-block: 56px;
  border-top: 1px solid var(--surface-border);
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  text-align: center;
  margin-bottom: 40px;
}

.how-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .how-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.how-step {
  text-align: center;
  padding: 24px;
}

.how-step-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.how-step p {
  color: var(--text-muted);
}

/* ---------- Form ---------- */
.form-section {
  padding-block: 56px 80px;
  border-top: 1px solid var(--surface-border);
}

.form-container {
  max-width: 520px;
}

#waitlistForm {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field label {
  font-size: 0.9rem;
  color: var(--text);
}

.optional {
  color: var(--text-muted);
  font-weight: 400;
}

.field input,
.field textarea {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text);
  font-size: 1rem;
  resize: vertical;
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--text-muted);
}

.field input:focus,
.field textarea:focus {
  border-color: var(--accent);
}

.form-submit {
  width: 100%;
  margin-top: 4px;
}

.micro-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
}

.form-status {
  min-height: 1.2em;
  text-align: center;
  font-size: 0.9rem;
}

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

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

/* ---------- Footer ---------- */
.site-footer {
  padding-block: 24px;
  border-top: 1px solid var(--surface-border);
  text-align: center;
}

.site-footer p {
  color: var(--text-muted);
  font-size: 0.85rem;
}