@font-face {
  font-family: "LondonTube";
  src: url("assets/LondonTube.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
}

:root {
  color-scheme: dark;
  --bg: #050505;
  --panel: #101010;
  --ink: #f4f4f4;
  --muted: #c0c0c0;
  --accent: #f4f4f4;
  --accent-light: #ffffff;
  --accent-warm: #d8d8d8;
  --border: #343434;
  --shadow: rgba(0, 0, 0, 0.35);
}

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

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, sans-serif;
  font-weight: 400;
  color: var(--ink);
  background: linear-gradient(180deg, #000000 0%, #070707 55%, #101010 100%);
}

.page {
  max-width: 980px;
  margin: 32px auto 64px;
  padding: 24px;
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: 0 12px 24px var(--shadow);
}

.header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  align-items: center;
  padding: 0 0 20px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.logo {
  max-width: 320px;
  height: auto;
  display: block;
  margin: 0;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.header h1 {
  margin-left: 0;
  grid-column: 2;
  justify-self: end;
  text-align: right;
  font-family: "LondonTube", "Segoe UI", Tahoma, sans-serif;
  letter-spacing: 0.04em;
}

h1 {
  margin: 0;
  font-size: 26px;
  font-weight: 700;
}

.form {
  margin-top: 20px;
  padding: 0;
}

.form-shell {
  margin: 0;
  padding: 0;
  border: 0;
  min-width: 0;
}

.form-shell[disabled] {
  opacity: 0.52;
}

.section--gate {
  margin-bottom: 16px;
}

.gate-row {
  display: grid;
  grid-template-columns: minmax(220px, 320px) auto;
  gap: 16px;
  align-items: end;
}

.field--gate {
  margin-bottom: 0;
}

.gate-actions {
  display: flex;
  align-items: end;
}

.input--locked {
  background: #1a1a1a;
  color: var(--muted);
  font-weight: 700;
}

.section + .section {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

h2 {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 700;
}

.hint {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 14px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
}

.field--wide {
  grid-column: 1 / -1;
}

label {
  font-weight: 600;
}

.req {
  color: #ffffff;
  font-weight: 700;
}

input,
select,
textarea {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: "Segoe UI", Tahoma, sans-serif;
  font-weight: 400;
  background: #0a0a0a;
  color: var(--ink);
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(255, 255, 255, 0.18);
  border-color: var(--accent-light);
}

fieldset {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  gap: 8px;
}

fieldset label {
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.tiny-note {
  font-size: 12px;
  color: var(--muted);
}

fieldset legend {
  padding: 0 6px;
  font-weight: 600;
}

.checkbox {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-weight: 500;
  margin-bottom: 12px;
}

.signature {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.actions {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

button {
  background: var(--accent);
  color: #000;
  border: none;
  padding: 12px 20px;
  font-size: 15px;
  font-family: "LondonTube", "Segoe UI", Tahoma, sans-serif;
  font-weight: 700;
  border-radius: 6px;
  cursor: pointer;
  letter-spacing: 0.03em;
}

button:hover {
  background: var(--accent-warm);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.status {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.status--error {
  color: #d16a00 !important;
  font-weight: 700 !important;
  font-size: 18px;
  line-height: 1.35;
}

.hp {
  position: absolute;
  left: -10000px;
  opacity: 0;
  height: 1px;
  width: 1px;
}

@media (max-width: 640px) {
  .page {
    padding: 16px;
  }

  .gate-row {
    grid-template-columns: 1fr;
  }

  .header {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 12px;
  }

  .header h1 {
    grid-column: 1;
    justify-self: center;
    text-align: center;
  }

  .logo {
    margin: 0 auto;
  }
}