/* ---------- Tokens (single dark theme) ---------- */

:root {
  --bg: #04070D;
  --surface: #0B0F17;
  --surface-hover: #11161F;
  --text: #FFFFFF;
  --text-secondary: #D5DBE6;
  --text-muted: #8A93A6;
  --border: #1A2030;
  --border-strong: #242C40;
  --accent: #D5DBE6;
  --error: #E5705B;
}

/* ---------- Reset ---------- */

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

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text-secondary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html { color-scheme: dark; }

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  transition: color 140ms ease, border-color 140ms ease;
}
a:hover { color: var(--text); border-bottom-color: var(--text); }
a:focus-visible {
  outline: none;
  color: var(--text);
  border-bottom-color: var(--text);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
  border-radius: 2px;
}

/* ---------- Layout ---------- */

.shell {
  max-width: 560px;
  margin: 0 auto;
  padding: 48px 24px 48px;
}

@media (min-width: 720px) {
  .shell { padding-top: 96px; padding-bottom: 96px; }
}

/* ---------- Header ---------- */

.head { margin-bottom: 48px; }

.brand {
  margin: 0 0 24px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

h1 {
  margin: 0 0 16px;
  font-size: 24px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text);
}

.accent-serif {
  font-family: Georgia, "Times New Roman", Times, serif;
  font-style: italic;
  font-weight: 500;
  letter-spacing: -0.005em;
  color: var(--text);
}

.lede {
  margin: 0;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-muted);
  max-width: 52ch;
}

/* ---------- Form sections ---------- */

form { display: block; }

.group {
  margin: 0 0 40px;
  background: transparent;
  border: 0;
  padding: 0;
}
.group:last-of-type { margin-bottom: 32px; }

.group h2 {
  margin: 0 0 16px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ---------- Fields ---------- */

.field { margin: 0 0 20px; }
.field:last-child { margin-bottom: 0; }

label,
.field-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.help {
  margin: 6px 0 0;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-muted);
}

/* ---------- Inputs ---------- */

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
textarea {
  display: block;
  width: 100%;
  padding: 12px 14px;
  font: inherit;
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  appearance: none;
  transition: background-color 140ms ease, border-color 140ms ease, box-shadow 140ms ease;
}

input::placeholder, textarea::placeholder { color: var(--text-muted); opacity: 1; }

input[type="number"] { -moz-appearance: textfield; }
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

textarea { resize: vertical; min-height: 96px; }

input:hover, textarea:hover {
  border-color: var(--border-strong);
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--border-strong);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent);
}

input[aria-invalid="true"],
textarea[aria-invalid="true"] {
  border-color: var(--error);
}
input[aria-invalid="true"]:focus,
textarea[aria-invalid="true"]:focus {
  border-color: var(--error);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--error) 18%, transparent);
}

/* Prefix input ($ field) */

.prefix-input { position: relative; }
.prefix-input .prefix {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 15px;
  pointer-events: none;
}
.prefix-input input { padding-left: 26px; }

/* ---------- File dropzone ---------- */

.dropzone {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: 8px;
  text-align: center;
  cursor: pointer;
  transition: background-color 140ms ease, border-color 140ms ease, box-shadow 140ms ease;
  margin: 0;
  font-weight: 400;
}

.dropzone input[type="file"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.dropzone-text { display: block; line-height: 1.4; }
.dropzone-primary {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}
.dropzone-secondary {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--text-muted);
}

.dropzone:hover {
  border-color: var(--border-strong);
  background: var(--surface-hover);
}

.field:has(.dropzone input:focus-visible) .dropzone {
  border-color: var(--border-strong);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent);
}

.field:has(.file-meta:not([hidden])) .dropzone {
  border-style: solid;
  border-color: var(--border-strong);
  background: var(--surface-hover);
}

.field:has(.error:not(:empty)) .dropzone {
  border-color: var(--error);
}

.file-meta {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--text-muted);
}

/* ---------- Checkbox + reveal ---------- */

.check { margin-top: 12px; }
.check .checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 400;
  color: var(--text-secondary);
  cursor: pointer;
  margin-bottom: 0;
  user-select: none;
}
.check .checkbox input {
  margin: 0;
  width: 16px;
  height: 16px;
  accent-color: var(--text-secondary);
  cursor: pointer;
}

#setup_field {
  overflow: hidden;
  transition: opacity 140ms ease;
}
#setup_field[hidden] { display: none; }

/* ---------- Errors ---------- */

.error {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.45;
  color: var(--error);
}
.error:empty { display: none; }

/* ---------- Submit ---------- */

.submit-row {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

button,
button[type="submit"],
#submit_btn {
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  padding: 14px 20px;
  background: #0B0F17;
  color: #FFFFFF;
  border: 1px solid #1A2030;
  border-radius: 12px;
  cursor: pointer;
  width: 100%;
  transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease, box-shadow 140ms ease, opacity 140ms ease;
}
button:hover,
button[type="submit"]:hover,
#submit_btn:hover {
  background: #11161F;
  border-color: #1A2030;
  color: #FFFFFF;
}
button:focus-visible,
#submit_btn:focus-visible {
  outline: none;
  border-color: #242C40;
  box-shadow: 0 0 0 3px color-mix(in srgb, #D5DBE6 18%, transparent);
}
button:disabled,
#submit_btn:disabled { opacity: 0.55; cursor: not-allowed; }

.button-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.button-ghost:hover {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text);
}

.submit-note {
  margin: 0;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

/* ---------- Success / failure states ---------- */

.state {
  background: transparent;
  border: 0;
  padding: 0;
  margin-top: 24px;
}
.state h2 {
  margin: 0 0 12px;
  font-size: 24px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text);
  letter-spacing: -0.01em;
}
.state p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--text-secondary);
}
.state p:last-of-type { margin-bottom: 0; }
.state-error button { margin-top: 24px; width: auto; min-width: 140px; }

/* ---------- Footer ---------- */

.foot {
  margin-top: 48px;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}
.foot a { color: var(--text-muted); border-bottom-color: color-mix(in srgb, var(--text-muted) 30%, transparent); }
.foot a:hover { color: var(--text); border-bottom-color: var(--text); }

/* ---------- Motion ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0ms !important;
    animation-duration: 0ms !important;
  }
}