:root {
  --bg: #101114;
  --bg-soft: #17191f;
  --panel: rgba(19, 21, 27, 0.95);
  --border: #3e434f;
  --border-bright: #6f7686;
  --text: #f2f4f8;
  --muted: #9ca3b3;
  --accent: #f2f4f8;
  --success: #8fff7a;
  --danger: #ff7b7b;
  --shadow: rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Press Start 2P", monospace;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.06), transparent 30%),
    linear-gradient(180deg, #0d0e12 0%, #151821 100%);
  color: var(--text);
  font-size: 11px;
  line-height: 1.8;
  overflow-x: hidden;
}

.stars,
.scanlines,
.grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.stars {
  z-index: 0;
}

.grid {
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent);
}

.scanlines {
  z-index: 1;
  background: repeating-linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.03) 0,
    rgba(255, 255, 255, 0.03) 1px,
    transparent 1px,
    transparent 4px
  );
}

.shell {
  position: relative;
  z-index: 2;
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 64px;
}

#authPanel {
  margin-top: calc(50vh - 220px);
}

.panel {
  background: var(--panel);
  border: 4px solid var(--border);
  box-shadow: 10px 10px 0 var(--shadow);
}

h1,
h2 {
  margin: 0;
  line-height: 1.5;
}

.panel {
  padding: 24px;
  margin-bottom: 22px;
}

.panel-head {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 14px;
  text-align: center;
}

.badge {
  padding: 6px 10px;
  border: 2px solid var(--border-bright);
  font-size: 9px;
}

.badge {
  cursor: pointer;
}

.badge-off {
  color: var(--danger);
}

.badge-on {
  color: var(--success);
}

.panel-head .badge {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}

.panel-head h2 {
  width: 100%;
  text-align: center;
}

.auth-grid,
.duo,
.result-grid {
  display: grid;
  gap: 14px;
}

.auth-panel {
  max-width: 760px;
  margin: 0 auto 22px;
}

.auth-grid,
.duo,
.result-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.auth-meta,
.field-hint,
.progress-top {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.auth-meta {
  margin-top: 12px;
  color: var(--muted);
  justify-content: center;
  text-align: center;
}

.otp-boxes {
  display: grid;
  grid-template-columns: repeat(6, 64px);
  justify-content: center;
  gap: 10px;
  margin: 10px 0 18px;
}

.otp-cell {
  width: 64px;
  height: 64px;
  border: 3px solid var(--border-bright);
  background: var(--bg-soft);
  color: var(--text);
  text-align: center;
  font: inherit;
  font-size: 24px;
  padding: 0;
  outline: none;
}

.otp-cell:focus {
  border-color: var(--accent);
  box-shadow: 6px 6px 0 var(--shadow);
}

.auth-actions {
  display: flex;
  justify-content: center;
}

.render-form {
  display: grid;
  gap: 18px;
}

.field {
  display: grid;
  gap: 8px;
}

label {
  color: var(--muted);
  text-transform: uppercase;
}

.pixel-input,
textarea,
select,
input[type="file"] {
  width: 100%;
  border: 3px solid var(--border);
  background: var(--bg-soft);
  color: var(--text);
  font: inherit;
  padding: 12px;
  border-radius: 0;
  outline: none;
}

select.pixel-input {
  display: none;
}

textarea {
  min-height: 160px;
  resize: vertical;
}

.pixel-input:focus,
textarea:focus,
select:focus,
input[type="file"]:focus {
  border-color: var(--border-bright);
}

input[type="range"] {
  width: 100%;
}

.hint,
.field-hint {
  color: var(--muted);
  font-size: 9px;
}

.file-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 10px;
  border: 2px solid var(--border);
  cursor: pointer;
}

.custom-select {
  position: relative;
}

.custom-select-trigger {
  width: 100%;
  border: 3px solid var(--border);
  background: var(--bg-soft);
  color: var(--text);
  font: inherit;
  padding: 12px 52px 12px 12px;
  text-align: left;
  cursor: pointer;
  position: relative;
}

.custom-select-trigger::before,
.custom-select-trigger::after {
  content: "";
  position: absolute;
  right: 16px;
  width: 8px;
  height: 8px;
  background: var(--text);
  clip-path: polygon(50% 100%, 0 0, 100% 0);
}

.custom-select-trigger::before {
  top: calc(50% - 4px);
}

.custom-select.open .custom-select-trigger {
  border-color: var(--border-bright);
}

.custom-select-list {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  display: none;
  max-height: 240px;
  overflow-y: auto;
  border: 3px solid var(--border-bright);
  background: #11141c;
  box-shadow: 8px 8px 0 var(--shadow);
  z-index: 20;
}

.custom-select.open .custom-select-list {
  display: block;
}

.custom-select-list button {
  display: block;
  width: 100%;
  border: 0;
  border-bottom: 2px solid rgba(111, 118, 134, 0.2);
  background: transparent;
  color: var(--text);
  font: inherit;
  padding: 11px 12px;
  text-align: left;
  cursor: pointer;
}

.custom-select-list button:last-child {
  border-bottom: 0;
}

.custom-select-list button:hover,
.custom-select-list button.selected {
  background: rgba(255, 255, 255, 0.06);
}

.btn {
  border: 3px solid var(--accent);
  background: var(--accent);
  color: #111;
  font: inherit;
  padding: 12px 14px;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  transition: transform 0.08s ease;
}

.btn:hover {
  transform: translate(-2px, -2px);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-bright);
}

.btn-wide {
  width: 100%;
}

.progress {
  margin-top: 18px;
  border: 3px solid var(--border);
  background: var(--bg-soft);
  padding: 16px;
}

.progress-bar {
  height: 18px;
  border: 3px solid var(--border);
  background: #0f1014;
  margin: 12px 0;
  overflow: hidden;
}

.progress-fill {
  width: 0%;
  height: 100%;
  background: repeating-linear-gradient(
    90deg,
    var(--accent) 0 12px,
    #b8bdc9 12px 18px
  );
}

.progress-log {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.error {
  margin-top: 16px;
  padding: 14px;
  border: 3px solid var(--danger);
  background: rgba(255, 123, 123, 0.08);
  color: #ffd6d6;
}

.result {
  margin-top: 18px;
  border: 3px solid var(--success);
  background: rgba(143, 255, 122, 0.08);
  padding: 16px;
}

.result-title {
  margin-bottom: 8px;
}

.mono {
  color: var(--success);
}

@media (max-width: 900px) {
  .hero,
  .auth-grid,
  .duo,
  .result-grid {
    grid-template-columns: 1fr;
  }

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

  .shell {
    width: min(100% - 18px, 1080px);
  }

  .panel,
  .hero {
    padding: 18px;
  }

  .auth-meta,
  .field-hint,
  .progress-top,
  .panel-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .otp-boxes {
    grid-template-columns: repeat(3, 64px);
  }
}