.offline-license-page { min-width: 0; }
.offline-license-page.captcha-open { overflow: hidden; }

/* Preserve native hidden states when shared button/result styles set display. */
.offline-license-page [hidden] { display: none !important; }

.offline-license-shell {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 82px 0 76px;
}

.offline-license-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, .72fr);
  gap: 48px;
  align-items: end;
  padding: 38px 0 52px;
  border-bottom: 1px solid var(--border);
}

.offline-license-eyebrow,
.section-kicker {
  margin: 0;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}

.offline-license-hero h1 {
  max-width: 760px;
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 650;
  line-height: 1.08;
  letter-spacing: 0;
}

.offline-license-lead {
  max-width: 700px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.72;
}

.offline-license-hero-note {
  padding: 4px 0 4px 24px;
  border-left: 3px solid var(--success);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.offline-license-hero-note strong {
  display: block;
  margin-bottom: 5px;
  color: var(--fg);
  font-size: 16px;
}

.offline-license-layout {
  display: grid;
  grid-template-columns: minmax(260px, .72fr) minmax(0, 1.08fr);
  gap: 42px;
  align-items: start;
  padding: 46px 0 62px;
}

.offline-license-guide { padding: 12px 0; }

.offline-license-guide h2,
.exchange-surface-head h2,
.offline-license-support h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 640;
  line-height: 1.18;
  letter-spacing: 0;
}

.exchange-steps {
  display: grid;
  gap: 20px;
  margin: 30px 0;
  padding: 0;
  list-style: none;
}

.exchange-steps li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.exchange-step-number {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid color-mix(in oklch, var(--accent), var(--border) 64%);
  border-radius: 8px;
  color: var(--accent-deep);
  background: color-mix(in oklch, var(--accent), transparent 90%);
  font-size: 13px;
  font-weight: 700;
}

.exchange-steps strong { color: var(--fg); font-size: 15px; }
.exchange-steps p { margin: 5px 0 0; color: var(--muted); font-size: 14px; line-height: 1.65; }

.privacy-note {
  padding: 20px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.privacy-note strong { color: var(--fg); font-size: 14px; }
.privacy-note p { margin: 7px 0 0; color: var(--muted); font-size: 14px; line-height: 1.65; }

.exchange-service-state {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  margin-top: 24px;
  padding: 16px 0;
}

.service-indicator {
  width: 8px;
  height: 8px;
  margin-top: 6px;
  border-radius: 50%;
  background: var(--warn);
  box-shadow: 0 0 0 4px color-mix(in oklch, var(--warn), transparent 84%);
}

.exchange-service-state strong { display: block; color: var(--fg); font-size: 14px; }
.exchange-service-state p { margin: 4px 0 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
.exchange-service-state[data-state="ready"] .service-indicator { background: var(--success); box-shadow: 0 0 0 4px color-mix(in oklch, var(--success), transparent 84%); }
.exchange-service-state[data-state="error"] .service-indicator,
.exchange-service-state[data-state="unavailable"] .service-indicator { background: var(--danger); box-shadow: 0 0 0 4px color-mix(in oklch, var(--danger), transparent 84%); }

.offline-license-surface {
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--glass-card);
  box-shadow: inset 0 1px 0 var(--glass-highlight);
}

.exchange-surface-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 25px;
  border-bottom: 1px solid var(--border);
}

.exchange-surface-head h2 { font-size: 27px; }
.exchange-surface-head > p { max-width: 265px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.6; }

#offline-license-form { display: grid; gap: 21px; padding-top: 27px; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.form-field { min-width: 0; }
.form-field label,
.field-label { display: block; margin-bottom: 8px; color: var(--fg); font-size: 14px; font-weight: 650; }

.form-field input:not(.sr-only) {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--border);
  border-radius: 8px;
  outline: none;
  padding: 0 13px;
  color: var(--fg);
  background: var(--ui-subtle);
  font-size: 15px;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.form-field input:not(.sr-only):focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--focus-ring);
  background: var(--glass-card);
}

.form-field input:not(.sr-only):disabled { cursor: not-allowed; opacity: .62; }

.field-hint,
.field-error,
.form-message {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.field-error,
.form-message { color: var(--danger); }
.file-field { display: grid; gap: 0; }

.email-verification {
  display: grid;
  gap: 8px;
}

.email-verification-label-row {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
}

.email-verification-label-row label { color: var(--fg); font-size: 14px; font-weight: 650; }

.verification-badge {
  min-height: 24px;
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  padding: 0 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  background: var(--ui-subtle);
  font-size: 11px;
  font-weight: 700;
}

.email-verification[data-state="verified"] .verification-badge {
  border-color: color-mix(in oklch, var(--success), var(--border) 52%);
  color: color-mix(in oklch, var(--success), black 20%);
  background: color-mix(in oklch, var(--success), transparent 86%);
}

.email-verification[data-state="error"] .verification-badge {
  border-color: color-mix(in oklch, var(--danger), var(--border) 52%);
  color: var(--danger);
  background: color-mix(in oklch, var(--danger), transparent 90%);
}

html[data-theme="dark"] .email-verification[data-state="verified"] .verification-badge { color: color-mix(in oklch, var(--success), white 25%); }

.email-verification-message {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.email-code-row {
  display: grid;
  grid-template-columns: minmax(220px, 280px) auto;
  align-items: end;
  justify-content: start;
  gap: 12px;
}

.email-code-row .form-field { min-width: 0; }
.email-code-row .btn { min-height: 46px; white-space: nowrap; }
.email-code-row input { letter-spacing: 2px; }

.email-verification[data-state="error"] .email-verification-message { color: var(--danger); }
.email-verification[data-state="verified"] .email-verification-message { color: var(--success); }

.upload-zone {
  min-height: 116px;
  display: flex;
  align-items: center;
  gap: 16px;
  border: 1px dashed color-mix(in oklch, var(--accent), var(--border) 64%);
  border-radius: 8px;
  padding: 18px;
  color: var(--fg);
  background: color-mix(in oklch, var(--accent), transparent 96%);
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.upload-zone:hover,
.upload-zone.is-dragging { border-color: var(--accent); background: color-mix(in oklch, var(--accent), transparent 90%); transform: translateY(-1px); }
.upload-zone.is-disabled { cursor: not-allowed; opacity: .56; }

.upload-zone-mark {
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  display: grid;
  place-items: center;
  border: 1px solid color-mix(in oklch, var(--accent), transparent 48%);
  border-radius: 8px;
  color: var(--accent-deep);
  background: color-mix(in oklch, var(--accent), transparent 86%);
  font-size: 23px;
  line-height: 1;
}

.upload-zone-copy { display: grid; gap: 4px; min-width: 0; }
.upload-zone-copy strong { font-size: 15px; }
.upload-zone-copy small { color: var(--muted); font-size: 13px; line-height: 1.55; }

.file-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 10px;
  padding: 11px 0;
  border-bottom: 1px solid var(--border);
}

.file-summary > div { display: grid; min-width: 0; gap: 3px; }
.file-summary strong { overflow: hidden; color: var(--fg); font-size: 13px; text-overflow: ellipsis; white-space: nowrap; }
.file-summary span { color: var(--muted); font-size: 12px; }

.text-action {
  min-height: 32px;
  border: 0;
  padding: 0 2px;
  color: var(--accent-deep);
  background: transparent;
  font-size: 13px;
  font-weight: 650;
  cursor: pointer;
}

.text-action:hover { color: var(--accent); text-decoration: underline; }
.text-action:disabled { cursor: not-allowed; opacity: .55; text-decoration: none; }

.exchange-form-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 4px;
}

.exchange-submit { min-width: 204px; }
.exchange-submit:disabled { cursor: not-allowed; opacity: .58; transform: none; box-shadow: none; }
.exchange-form-actions p { max-width: 310px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.55; text-align: right; }

.button-spinner {
  width: 15px;
  height: 15px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: offlineLicenseSpin .75s linear infinite;
}

.exchange-result {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 14px;
  margin-top: 26px;
  padding: 20px 0 0;
  border-top: 1px solid var(--border);
}

.result-mark {
  width: 28px;
  height: 28px;
  position: relative;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--ui-subtle);
}

.exchange-result[data-state="success"] .result-mark { border-color: color-mix(in oklch, var(--success), var(--border) 48%); background: color-mix(in oklch, var(--success), transparent 84%); }
.exchange-result[data-state="success"] .result-mark::after { content: ""; position: absolute; width: 11px; height: 6px; left: 7px; top: 8px; border-left: 2px solid var(--success); border-bottom: 2px solid var(--success); transform: rotate(-45deg); }
.exchange-result[data-state="error"] .result-mark { border-color: color-mix(in oklch, var(--danger), var(--border) 44%); background: color-mix(in oklch, var(--danger), transparent 88%); }
.exchange-result[data-state="error"] .result-mark::before,
.exchange-result[data-state="error"] .result-mark::after { content: ""; position: absolute; width: 13px; height: 2px; left: 6px; top: 12px; background: var(--danger); transform: rotate(45deg); }
.exchange-result[data-state="error"] .result-mark::after { transform: rotate(-45deg); }

.result-copy h3 { margin: 1px 0 0; color: var(--fg); font-size: 16px; line-height: 1.35; }
.result-copy p { margin: 6px 0 0; color: var(--muted); font-size: 14px; line-height: 1.65; }
.result-actions { grid-column: 2; display: flex; flex-wrap: wrap; gap: 10px; margin-top: 3px; }
.result-actions .btn { min-height: 40px; padding: 0 14px; }

.captcha-dialog {
  position: fixed;
  z-index: 80;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
}

.captcha-dialog-backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in oklch, var(--bg), transparent 16%);
  backdrop-filter: blur(8px);
}

.captcha-dialog-panel {
  width: min(460px, 100%);
  position: relative;
  z-index: 1;
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--glass-card);
  box-shadow: 0 24px 80px color-mix(in oklch, var(--fg), transparent 76%), inset 0 1px 0 var(--glass-highlight);
}

.captcha-dialog-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
}

.captcha-dialog-head h2 {
  margin: 8px 0 0;
  color: var(--fg);
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 640;
  line-height: 1.18;
}

.icon-text-button {
  min-height: 32px;
  border: 0;
  padding: 0 2px;
  color: var(--muted);
  background: transparent;
  font-size: 13px;
  font-weight: 650;
  cursor: pointer;
}

.icon-text-button:hover { color: var(--fg); }

.captcha-dialog-lead {
  margin: 15px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.altcha-panel {
  display: flex;
  align-items: flex-start;
  margin-top: 18px;
  --altcha-border-radius: 8px;
  --altcha-border-color: var(--border);
  --altcha-color-base: var(--ui-subtle);
  --altcha-color-base-content: var(--fg);
  --altcha-color-neutral: var(--border);
  --altcha-color-neutral-content: var(--muted);
  --altcha-color-primary: var(--accent);
  --altcha-color-primary-content: white;
  --altcha-color-success: var(--success);
  --altcha-color-success-content: white;
  --altcha-checkbox-border-color: color-mix(in oklch, var(--border), var(--fg) 18%);
  --altcha-max-width: 356px;
  --altcha-padding: 14px;
}

.altcha-panel altcha-widget {
  display: block;
  width: min(100%, 356px);
}

.altcha-panel .altcha,
.altcha-panel .altcha-main { width: min(100%, 356px); }

.altcha-panel .altcha-main {
  box-shadow: inset 0 1px 0 var(--glass-highlight);
}

.altcha-panel .altcha-checkbox-wrap { min-height: 26px; }
.altcha-panel .altcha-footer { margin-top: 1px; }
.altcha-panel[hidden],
.captcha-stage[hidden],
.captcha-slider[hidden],
[data-refresh-captcha][hidden] { display: none !important; }
.captcha-dialog[data-captcha-mode="altcha"] .captcha-stage,
.captcha-dialog[data-captcha-mode="altcha"] .captcha-slider,
.captcha-dialog[data-captcha-mode="altcha"] [data-refresh-captcha] { display: none; }
.captcha-dialog[data-captcha-mode="altcha"] .captcha-dialog-actions { justify-content: flex-end; }

.captcha-stage {
  --captcha-piece-left: 0%;
  --captcha-piece-top: 0%;
  --captcha-piece-width: 20%;
  --captcha-piece-height: 34%;
  width: 100%;
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  margin-top: 20px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--ui-subtle);
}

.captcha-background,
.captcha-piece {
  position: absolute;
  display: block;
  pointer-events: none;
  user-select: none;
}

.captcha-background { inset: 0; width: 100%; height: 100%; object-fit: cover; }
.captcha-piece {
  width: var(--captcha-piece-width);
  height: var(--captcha-piece-height);
  top: var(--captcha-piece-top);
  left: var(--captcha-piece-left);
  object-fit: fill;
  filter: drop-shadow(0 3px 6px color-mix(in oklch, var(--fg), transparent 72%));
  transition: left 70ms linear;
}

.captcha-stage-loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 13px;
  background: color-mix(in oklch, var(--ui-subtle), transparent 12%);
}

.captcha-slider {
  display: grid;
  gap: 9px;
  margin-top: 18px;
  color: var(--fg);
  font-size: 13px;
  font-weight: 650;
}

.captcha-slider input {
  --captcha-slider-progress: 0%;
  width: 100%;
  min-height: 52px;
  height: 52px;
  margin: 0;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  cursor: grab;
  touch-action: pan-y;
}

.captcha-slider input::-webkit-slider-runnable-track {
  height: 8px;
  border: 1px solid color-mix(in oklch, var(--border), var(--fg) 18%);
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent) 0 var(--captcha-slider-progress), color-mix(in oklch, var(--ui-subtle), var(--fg) 8%) var(--captcha-slider-progress) 100%);
}

.captcha-slider input::-webkit-slider-thumb {
  width: 64px;
  height: 48px;
  margin-top: -21px;
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid color-mix(in oklch, var(--accent-deep), var(--fg) 22%);
  border-radius: 16px;
  background: linear-gradient(180deg, color-mix(in oklch, var(--accent), white 22%), var(--accent) 46%, var(--accent-deep));
  box-shadow: 0 7px 16px color-mix(in oklch, var(--accent), transparent 76%), inset 0 1px 0 color-mix(in oklch, white, transparent 28%), inset 0 -1px 0 color-mix(in oklch, var(--accent-deep), transparent 28%);
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.captcha-slider input::-moz-range-track {
  height: 8px;
  border: 1px solid color-mix(in oklch, var(--border), var(--fg) 18%);
  border-radius: 999px;
  background: color-mix(in oklch, var(--ui-subtle), var(--fg) 8%);
}

.captcha-slider input::-moz-range-progress {
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
}

.captcha-slider input::-moz-range-thumb {
  width: 64px;
  height: 48px;
  border: 1px solid color-mix(in oklch, var(--accent-deep), var(--fg) 22%);
  border-radius: 16px;
  background: linear-gradient(180deg, color-mix(in oklch, var(--accent), white 22%), var(--accent) 46%, var(--accent-deep));
  box-shadow: 0 7px 16px color-mix(in oklch, var(--accent), transparent 76%), inset 0 1px 0 color-mix(in oklch, white, transparent 28%), inset 0 -1px 0 color-mix(in oklch, var(--accent-deep), transparent 28%);
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.captcha-slider input:hover:not(:disabled) { cursor: grab; }
.captcha-slider input:active:not(:disabled) { cursor: grabbing; }
.captcha-slider input:active:not(:disabled)::-webkit-slider-thumb { transform: scale(.96); }
.captcha-slider input:active:not(:disabled)::-moz-range-thumb { transform: scale(.96); }
.captcha-slider input:focus-visible {
  outline: 3px solid color-mix(in oklch, var(--accent), transparent 55%);
  outline-offset: 4px;
  border-radius: 8px;
}

.captcha-slider input:disabled { cursor: wait; opacity: .58; }
.captcha-message { min-height: 20px; margin: 12px 0 0; color: var(--danger); font-size: 13px; line-height: 1.55; }

.captcha-dialog-actions {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-top: 8px;
}

.offline-license-support {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  padding: 38px 0 4px;
  border-top: 1px solid var(--border);
}

.offline-license-support h2 { font-size: 27px; }
.offline-license-support p { max-width: 670px; margin: 10px 0 0; color: var(--muted); font-size: 15px; line-height: 1.65; }
.support-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; }
.support-actions .btn { white-space: nowrap; }

@keyframes offlineLicenseSpin { to { transform: rotate(360deg); } }

@media (max-width: 1000px) {
  .offline-license-layout { grid-template-columns: 1fr; gap: 26px; }
  .offline-license-guide { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 22px 34px; }
  .exchange-steps { margin: 0; }
  .privacy-note,
  .exchange-service-state { margin: 0; }
}

@media (max-width: 760px) {
  .offline-license-shell { width: min(100% - 28px, var(--max)); padding-top: 74px; }
  .offline-license-hero { grid-template-columns: 1fr; gap: 26px; padding: 28px 0 40px; }
  .offline-license-hero h1 { font-size: 38px; }
  .offline-license-hero-note { padding: 0 0 0 18px; }
  .offline-license-guide { grid-template-columns: 1fr; gap: 22px; }
  .offline-license-surface { padding: 23px; }
  .exchange-surface-head,
  .offline-license-support { align-items: flex-start; flex-direction: column; }
  .exchange-surface-head > p { max-width: none; }
  .form-grid { grid-template-columns: 1fr; }
  .email-code-row { grid-template-columns: 1fr; align-items: stretch; }
  .email-code-row .btn { width: 100%; }
  .exchange-form-actions { align-items: stretch; flex-direction: column; }
  .exchange-submit { width: 100%; }
  .exchange-form-actions p { max-width: none; text-align: left; }
  .support-actions { width: 100%; justify-content: stretch; }
  .support-actions .btn { flex: 1 1 180px; }
  .captcha-dialog { padding: 14px; }
  .captcha-dialog-panel { padding: 20px; }
}

@media (max-width: 480px) {
  .offline-license-hero h1 { font-size: 34px; }
  .offline-license-lead { font-size: 16px; }
  .offline-license-surface { padding: 19px; }
  .exchange-surface-head h2,
  .offline-license-guide h2,
  .offline-license-support h2 { font-size: 25px; }
  .file-summary { align-items: flex-start; flex-direction: column; }
  .result-actions { grid-column: 1 / -1; }
  .result-actions .btn { width: 100%; }
  .captcha-dialog-head h2 { font-size: 23px; }
}