@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&display=swap');

/* ---------------------------------------------------------------------------
   Custom properties — terminal theme (§22.13)
   --------------------------------------------------------------------------- */
:root {
  --bg: #050a0e;
  --text: #c8dde8;
  --accent: #7ecfea;
  --error: #ff5b5b;
  --border: rgba(200, 221, 232, 0.15);
  --font: 'JetBrains Mono', 'IBM Plex Mono', 'Courier New', monospace;
}

/* ---------------------------------------------------------------------------
   Reset + base
   --------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.9375rem; /* 15px */
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ---------------------------------------------------------------------------
   Layout — single-column centered, max 720px
   --------------------------------------------------------------------------- */
header,
section,
footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

/* ---------------------------------------------------------------------------
   Section dividers — hairline borders
   --------------------------------------------------------------------------- */
.section-divider {
  border: none;
  border-top: 1px solid var(--border);
  max-width: 720px;
  margin: 0 auto;
}

/* ---------------------------------------------------------------------------
   Typography
   --------------------------------------------------------------------------- */
h1 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.04em;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

h2 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.hero-subhead {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  opacity: 0.7;
  text-transform: none;
  letter-spacing: 0.02em;
  margin-bottom: 1.5rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text);
}

p:last-child {
  margin-bottom: 0;
}

/* ---------------------------------------------------------------------------
   Primary button (CTA + submit)
   --------------------------------------------------------------------------- */
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: var(--bg);
  border: none;
  border-radius: 0;
  padding: 0.8rem 2rem;
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  margin-top: 1.5rem;
  transition: opacity 0.15s ease;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  opacity: 0.85;
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

.btn-primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* Submit button: full-width on all sizes for form context */
form .btn-primary {
  width: 100%;
  text-align: center;
}

/* ---------------------------------------------------------------------------
   Hero section
   --------------------------------------------------------------------------- */
.section-hero {
  padding-top: 4rem;
  padding-bottom: 3rem;
}

/* ---------------------------------------------------------------------------
   Form layout
   --------------------------------------------------------------------------- */
#alpha-form {
  margin-top: 2rem;
}

.field-group {
  margin-bottom: 1.75rem;
}

label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text);
  opacity: 0.8;
  margin-bottom: 0.5rem;
}

/* ---------------------------------------------------------------------------
   Text inputs + textareas
   --------------------------------------------------------------------------- */
input[type="text"],
input[type="email"],
textarea {
  display: block;
  width: 100%;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 0;
  color: var(--text);
  font-family: var(--font);
  font-size: 0.9375rem;
  padding: 0.6rem 0.8rem;
  appearance: none;
  -webkit-appearance: none;
  transition: border-color 0.12s ease, outline-color 0.12s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus {
  outline: 1px solid var(--accent);
  outline-offset: 0;
  border-color: var(--accent);
}

textarea {
  resize: vertical;
  min-height: 6rem;
}

/* Error state on inputs */
input[type="text"].field-has-error,
input[type="email"].field-has-error,
textarea.field-has-error {
  border-color: var(--error);
}

input[type="text"].field-has-error:focus,
input[type="email"].field-has-error:focus,
textarea.field-has-error:focus {
  outline-color: var(--error);
}

/* ---------------------------------------------------------------------------
   Checkbox groups (multi-select + consent)
   --------------------------------------------------------------------------- */
fieldset.checkbox-group {
  border: none;
  padding: 0;
}

fieldset.checkbox-group legend {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text);
  opacity: 0.8;
  margin-bottom: 0.75rem;
}

fieldset.checkbox-group.field-has-error legend {
  color: var(--error);
  opacity: 1;
}

.checkbox-options {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  cursor: pointer;
  font-size: 0.9375rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  opacity: 1;
  color: var(--text);
}

/* Custom checkbox appearance */
.checkbox-label input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 1.1rem;
  height: 1.1rem;
  min-width: 1.1rem;
  border: 1px solid var(--border);
  border-radius: 0;
  background: transparent;
  cursor: pointer;
  margin-top: 0.2rem;
  transition: border-color 0.12s ease, background 0.12s ease;
  position: relative;
}

.checkbox-label input[type="checkbox"]:checked {
  background: var(--accent);
  border-color: var(--accent);
}

.checkbox-label input[type="checkbox"]:checked::after {
  content: '';
  display: block;
  position: absolute;
  top: 0.1rem;
  left: 0.25rem;
  width: 0.35rem;
  height: 0.6rem;
  border: 2px solid var(--bg);
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
}

.checkbox-label input[type="checkbox"]:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

/* Consent group */
.consent-group {
  border-top: 1px solid var(--border);
  padding-top: 1.25rem;
}

.consent-label {
  align-items: flex-start;
  font-size: 0.875rem;
  line-height: 1.5;
}

/* ---------------------------------------------------------------------------
   Turnstile widget container
   --------------------------------------------------------------------------- */
.turnstile-group {
  margin-bottom: 1.25rem;
}

/* ---------------------------------------------------------------------------
   Field-level error messages
   --------------------------------------------------------------------------- */
.field-error {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.8125rem;
  color: var(--error);
  letter-spacing: 0.04em;
}

/* ---------------------------------------------------------------------------
   Global form error block (§22.12)
   --------------------------------------------------------------------------- */
.form-error {
  border: 1px solid var(--error);
  color: var(--error);
  padding: 0.7rem 0.9rem;
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  margin-bottom: 1.25rem;
}

/* ---------------------------------------------------------------------------
   Thank-you state
   --------------------------------------------------------------------------- */
#thank-you-state {
  padding: 2rem 0;
}

#thank-you-state h2 {
  color: var(--accent);
  text-transform: none;
  letter-spacing: 0.02em;
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
}

/* ---------------------------------------------------------------------------
   Footer
   --------------------------------------------------------------------------- */
footer {
  padding-top: 2rem;
  padding-bottom: 3rem;
  text-align: center;
}

.studio-wordmark {
  font-size: 0.625rem; /* ≤10pt equivalent */
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text);
  opacity: 0.35;
  margin-bottom: 0;
}

/* ---------------------------------------------------------------------------
   Utility
   --------------------------------------------------------------------------- */
.hidden {
  display: none !important;
}

/* ---------------------------------------------------------------------------
   Responsive — ≤600px
   --------------------------------------------------------------------------- */
@media (max-width: 600px) {
  header,
  section,
  footer {
    padding: 2rem 1rem;
  }

  .section-hero {
    padding-top: 2.5rem;
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1rem;
  }

  .btn-primary {
    padding: 0.75rem 1.5rem;
  }
}

/* ---------------------------------------------------------------------------
   Responsive — ≤360px (minimum supported mobile width per §22.13)
   --------------------------------------------------------------------------- */
@media (max-width: 360px) {
  body {
    font-size: 0.875rem;
  }

  h1 {
    font-size: 1.5rem;
  }
}