/* =========================================================
   Bitcoin Wallet Generator
   Modern, responsive UI
   ========================================================= */

/* =========================================================
   Tokens
   ========================================================= */

:root {
  color-scheme: light;

  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --surface-hover: #f9fafb;

  --chrome-bg: #ffffff;
  --chrome-surface: #f2f4f7;
  --chrome-hover: #f8fafc;
  --chrome-text: #172033;
  --chrome-muted: #667085;
  --chrome-border: #d0d5dd;
  --chrome-footer-text: #667085;
  --chrome-footer-value: #344054;
  --chrome-footer-divider: #d0d5dd;
  --download-text: #52733f;
  --download-bg: #edf5e9;
  --download-border: #8aaa74;
  --download-hover-text: #365226;
  --download-hover-bg: #e3efdd;
  --download-hover-border: #62834e;
  --footer-icon-filter: none;

  --text: #172033;
  --text-muted: #667085;
  --text-light: #98a2b3;

  --border: #e4e7ec;
  --border-strong: #d0d5dd;
  --control-hover-border: #98a2b3;
  --focus-ring: rgba(247, 147, 26, 0.25);

  --primary: #f7931a;
  --primary-dark: #df7f0c;
  --primary-soft: #fff4e5;

  --success: #12b76a;
  --success-soft: #ecfdf3;
  --success-border: #abefc6;

  --danger: #d92d20;
  --danger-soft: #fef3f2;
  --danger-border: #fecdca;
  --danger-hover-text: #b42318;
  --danger-hover-bg: #fee4e2;
  --danger-hover-border: #fda29b;

  --warning: #b54708;
  --warning-soft: #fffaeb;
  --warning-border: #fedf89;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;

  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.04);
  --shadow: 0 8px 30px rgba(16, 24, 40, 0.07);
  --shadow-lg: 0 18px 50px rgba(16, 24, 40, 0.10);

  --max-width: 880px;
}

:root[data-theme="dark"] {
  color-scheme: dark;

  --bg: #0f1115;
  --surface: #171a20;
  --surface-soft: #1e222a;
  --surface-hover: #252a33;

  --chrome-bg: #171a20;
  --chrome-surface: #20242c;
  --chrome-hover: #292e38;
  --chrome-text: #f3f4f6;
  --chrome-muted: #a7adb7;
  --chrome-border: #343a46;
  --chrome-footer-text: #8f96a3;
  --chrome-footer-value: #d9dde5;
  --chrome-footer-divider: #414855;
  --download-text: #9fc486;
  --download-bg: #222a20;
  --download-border: #5d7550;
  --download-hover-text: #bee0a8;
  --download-hover-bg: #2a3427;
  --download-hover-border: #789568;
  --footer-icon-filter: brightness(0) invert(1);

  --text: #f3f4f6;
  --text-muted: #a7adb7;
  --text-light: #7f8794;

  --border: #2d333d;
  --border-strong: #454c59;
  --control-hover-border: #626b7a;

  --primary-dark: #ffad42;
  --primary-soft: #342515;

  --success-soft: #13251c;
  --success-border: #1d6b49;
  --danger: #fda29b;
  --danger-soft: #2d1818;
  --danger-border: #7a302c;
  --danger-hover-text: #fecaca;
  --danger-hover-bg: #46201e;
  --danger-hover-border: #a94740;
  --warning: #fdb022;
  --warning-soft: #2c2517;
  --warning-border: #66521b;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.28);
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.32);
  --shadow-lg: 0 18px 50px rgba(0, 0, 0, 0.38);
}

/* =========================================================
   Reset
   ========================================================= */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  padding-top: 53px;

  background: radial-gradient(
      circle at 50% -10%,
      rgba(247, 147, 26, 0.08),
      transparent 35%
    ),
    var(--bg);
  color: var(--text);

  font-family: Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  font-size: 16px;
  line-height: 1.6;

  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

code {
  font-family: "SFMono-Regular",
    Consolas,
    "Liberation Mono",
    Menlo,
    monospace;
}

/* =========================================================
   Layout
   ========================================================= */

.container {
  width: min(calc(100% - 40px), var(--max-width));
  margin-inline: auto;
}

main.container {
  padding-top: 40px;
  padding-bottom: 64px;
}

/* =========================================================
   Header / Navbar
   ========================================================= */

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 40;
  width: 100%;
  min-width: 320px;
  height: 53px;
  background: var(--chrome-bg);
  border-bottom: 1px solid var(--primary);
}

.navbar {
  width: 100%;
}

.navbar-inner {
  position: relative;
  width: 100%;
  max-width: 1000px;
  height: 52px;
  margin: 0 auto;
  padding: 0 16px;

  display: flex;
  align-items: center;
  justify-content: space-between;

  gap: 6px;
}

/* Brand */

.navbar-brand {
  display: inline-flex;
  align-items: center;

  gap: 6px;

  color: var(--chrome-text);

  text-decoration: none;

  min-width: 0;
}

.brand-icon {
  width: 36px;
  height: 36px;

  display: flex;
  align-items: center;
  justify-content: center;

  flex: 0 0 auto;

  color: #ffffff;

  background: linear-gradient(145deg, #f7931a, #e77f00);

  border: 2px solid #ffffff;
  border-radius: 9px;

  font-size: 25px;
  font-weight: 800;

  line-height: 1;

  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.35);
}

.brand-text {
  display: flex;
  flex-direction: column;

  justify-content: center;

  min-width: 0;
}

.brand-name {
  color: var(--chrome-text);

  font-family: Georgia, "Times New Roman", serif;

  font-size: 22px;
  font-weight: 600;

  line-height: 1;

  white-space: nowrap;
}

.brand-status {
  display: block;
  margin-top: 3px;

  color: var(--primary);

  font-family: Inter, ui-sans-serif, system-ui, sans-serif;

  font-size: 11px;
  font-weight: 700;

  letter-spacing: 0.1em;

  line-height: 1;

  text-indent: 0.1em;
  text-shadow: none;
  text-transform: uppercase;
  white-space: nowrap;
}

/* Actions */

.navbar-actions {
  display: flex;
  align-items: center;

  gap: 8px;

  flex: 0 0 auto;
  margin-left: auto;
  min-width: 0;
}

.nav-control {
  min-height: 40px;

  display: inline-flex;
  align-items: center;
  justify-content: center;

  gap: 7px;

  padding: 0 9px 0 12px;

  color: var(--chrome-text);

  background: var(--chrome-surface);

  border: 1px solid var(--chrome-border);
  border-radius: 8px;

  text-decoration: none;

  font-family: Inter, ui-sans-serif, system-ui, sans-serif;

  font-size: 14px;
  font-weight: 600;

  transition: background 0.15s ease,
    border-color 0.15s ease,
    transform 0.15s ease,
    color 0.15s ease;
}

.nav-control:hover {
  color: var(--chrome-text);
  background: var(--chrome-hover);
  border-color: var(--primary);
}

.nav-control:active {
  transform: none;
}

/* Download */

.nav-download {
  padding: 0 14px;
  gap: 6px;
  color: var(--download-text);
  background: var(--download-bg);
  border-color: var(--download-border);
}

.nav-download:hover {
  color: var(--download-hover-text);
  background: var(--download-hover-bg);
  border-color: var(--download-hover-border);
}

.download-icon,
.bitcoin-icon,

.download-icon {
  flex: 0 0 auto;
}

.download-label {
  display: inline;
}

/* Network */

/* =========================================================
   NETWORK SELECTOR
   ========================================================= */

.network-selector,
.language-selector {
  position: relative;
}

.network-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  z-index: 100;

  width: 340px;
  max-width: calc(100vw - 32px);
  padding: 6px;

  color: var(--chrome-text);
  background: var(--chrome-surface);
  border: 1px solid var(--chrome-border);
  border-radius: 12px;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.55);
}

.network-dropdown-title {
  margin: 6px 10px 4px;
  color: #d8892b;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.network-option {
  width: 100%;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 10px;
  color: var(--chrome-text);
  background: transparent;
  border: 0;
  border-radius: 8px;
  text-align: left;
  cursor: pointer;
}

.network-option:hover,
.network-option:focus-visible {
  background: color-mix(in oklab, #d8892b 14%, var(--chrome-surface));
  outline: none;
}

.network-option.active,
.network-option[aria-checked="true"] {
  background: color-mix(in oklab, #d8892b 20%, var(--chrome-surface));
}

.network-option-copy {
  min-width: 0;
}

.network-option-name {
  display: block;
  font-size: 14px;
  font-weight: 700;
}

.network-option-description {
  display: block;
  margin-top: 2px;
  color: var(--chrome-muted);
  font-size: 12px;
  line-height: 1.45;
}

.network-option.active .network-option-name,
.network-option[aria-checked="true"] .network-option-name {
  color: #d8892b;
}

.network-option-icon {
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 3px;
}

.network-dropdown-note {
  margin: 6px 10px 8px;
  color: var(--chrome-muted);
  font-size: 12px;
  line-height: 1.45;
}

.network-icon-coin {
  fill: #f7931a;
}

.network-icon-testnet .network-icon-coin {
  fill: #12b76a;
}

.network-icon-signet .network-icon-coin {
  fill: #a855f7;
}

.network-icon-regtest .network-icon-coin {
  fill: #737373;
}

.network-icon-symbol {
  fill: #ffffff;
}

/* =========================================================
   Native Dialogs
   ========================================================= */

.app-dialog {
  width: min(calc(100% - 32px), 560px);
  max-height: calc(100vh - 48px);

  margin: auto;
  padding: 0;

  color: var(--text);
  background: transparent;

  border: 0;

  overflow: visible;
}

.app-dialog::backdrop {
  background: rgba(15, 17, 21, 0.66);

  backdrop-filter: blur(3px);
}

.dialog-card {
  position: relative;

  width: 100%;

  max-height: calc(100vh - 48px);

  padding: 26px;

  overflow-y: auto;

  background: var(--surface);

  border: 1px solid var(--border);
  border-radius: var(--radius-lg);

  box-shadow: var(--shadow-lg);
}

.dialog-header {
  display: flex;

  align-items: flex-start;
  justify-content: space-between;

  gap: 20px;

  margin-bottom: 14px;
}

.dialog-header h2 {
  margin: 0;

  color: var(--text);

  font-size: 1.25rem;
  line-height: 1.3;
}

.dialog-eyebrow {
  display: block;

  margin-bottom: 4px;

  color: var(--primary);

  font-size: 0.72rem;
  font-weight: 750;

  letter-spacing: 0.06em;

  text-transform: uppercase;
}

.dialog-close {
  width: 36px;
  height: 36px;

  display: inline-flex;

  align-items: center;
  justify-content: center;

  flex: 0 0 auto;

  padding: 0;

  color: var(--text-muted);

  background: var(--surface-soft);

  border: 1px solid var(--border);
  border-radius: 9px;

  font-size: 1.4rem;
  line-height: 1;
}

.dialog-close:hover {
  color: var(--text);

  background: var(--surface-hover);

  border-color: var(--border-strong);
}

.dialog-close:focus-visible {
  outline: 3px solid var(--focus-ring);

  outline-offset: 2px;
}

.dialog-message {
  margin: 0 0 22px;

  color: var(--text-muted);

  white-space: pre-line;

  line-height: 1.6;
}

.dialog-actions {
  display: flex;

  justify-content: flex-end;

  flex-wrap: wrap;

  gap: 10px;

  margin-top: 24px;
}

.dialog-error {
  margin: 16px 0 0;

  padding: 12px 14px;

  color: var(--danger);

  background: var(--danger-soft);

  border: 1px solid var(--danger-border);
  border-radius: 10px;

  font-size: 0.875rem;
  font-weight: 600;
}

/* =========================================================
   Backup Verification Dialog
   ========================================================= */

.backup-challenge-fields {
  display: grid;

  grid-template-columns: repeat(
    3,
    minmax(0, 1fr)
  );

  gap: 12px;
}

.backup-challenge-field {
  min-width: 0;
}

.backup-challenge-field label {
  display: block;

  margin-bottom: 6px;

  color: var(--text);

  font-size: 0.82rem;
  font-weight: 700;
}

.backup-word-input {
  width: 100%;

  min-height: 46px;

  padding: 10px 12px;

  color: var(--text);

  background: var(--surface-soft);

  border: 1px solid var(--border-strong);
  border-radius: 10px;

  font: inherit;

  outline: none;
}

.backup-word-input:hover {
  border-color: var(--control-hover-border);
}

.backup-word-input:focus {
  border-color: var(--primary);

  box-shadow:
    0 0 0 3px
    rgba(247, 147, 26, 0.16);
}

.backup-challenge-input-wrap {
  position: relative;
}

.backup-word-input {
  padding-right: 86px;
}

.backup-word-status {
  position: absolute;
  top: 50%;
  right: 12px;

  transform: translateY(-50%);

  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1;

  pointer-events: none;
}

.backup-challenge-input-wrap.is-incorrect .backup-word-input {
  border-color: var(--danger);
}

.backup-challenge-input-wrap.is-incorrect .backup-word-input:focus {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(217, 45, 32, 0.14);
}

.backup-challenge-input-wrap.is-incorrect .backup-word-status {
  color: var(--danger);
}

.backup-challenge-input-wrap.is-correct .backup-word-input {
  border-color: var(--success);
}

.backup-challenge-input-wrap.is-correct .backup-word-input:focus {
  border-color: var(--success);
  box-shadow: 0 0 0 3px rgba(18, 183, 106, 0.14);
}

.backup-challenge-input-wrap.is-correct .backup-word-status {
  color: var(--success);
}

/* =========================================================
   Backup Acknowledgements
   ========================================================= */

.backup-acknowledgements {
  display: grid;

  gap: 10px;
}

.backup-acknowledgement {
  width: 100%;

  display: grid;

  grid-template-columns: 28px 1fr;

  align-items: center;

  gap: 12px;

  padding: 14px 16px;

  color: var(--text);

  text-align: left;

  background: var(--surface-soft);

  border: 1px solid var(--border);
  border-radius: 12px;

  font: inherit;

  font-size: 0.875rem;
  font-weight: 600;

  transition:
    background 0.18s ease,
    border-color 0.18s ease,
    transform 0.15s ease;
}

.backup-acknowledgement:hover {
  background: var(--surface-hover);

  border-color: var(--border-strong);
}

.backup-acknowledgement:active {
  transform: translateY(1px);
}

.backup-acknowledgement:focus-visible {
  outline: 3px solid var(--focus-ring);

  outline-offset: 2px;
}

.acknowledgement-check {
  width: 26px;
  height: 26px;

  display: inline-flex;

  align-items: center;
  justify-content: center;

  color: transparent;

  background: var(--surface);

  border: 1px solid var(--border-strong);
  border-radius: 50%;

  font-size: 0.75rem;
  font-weight: 800;
}

.backup-acknowledgement.is-confirmed {
  background: var(--success-soft);

  border-color: var(--success-border);
}

.backup-acknowledgement.is-confirmed
.acknowledgement-check {
  color: #ffffff;

  background: var(--success);

  border-color: var(--success);
}

.backup-notice {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
  padding: 16px;
  background: var(--surface-soft);
  border: 1px solid var(--warning);
  border-radius: 12px;
}

.backup-notice-icon {
  flex: 0 0 30px;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  color: var(--warning);
  font-weight: 800;
  border: 1px solid var(--warning);
  border-radius: 50%;
}

.backup-notice h3 {
  margin: 0 0 4px;
}

.backup-notice p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.5;
}

/* =========================================================
   Security Acknowledgements
   ========================================================= */

.security-acknowledgements {
  display: grid;
  gap: 10px;
}

.security-acknowledgement {
  width: 100%;
  display: grid;
  grid-template-columns: 28px 1fr;
  align-items: center;
  gap: 12px;

  padding: 14px 16px;

  color: var(--text);
  text-align: left;

  background: var(--surface-soft);

  border: 1px solid var(--border);
  border-radius: 12px;

  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;

  transition:
    background 0.18s ease,
    border-color 0.18s ease,
    transform 0.15s ease;
}

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

.security-acknowledgement:active {
  transform: translateY(1px);
}

.security-acknowledgement:focus-visible {
  outline: 3px solid rgba(247, 147, 26, 0.25);
  outline-offset: 2px;
}

.security-acknowledgement.is-confirmed {
  background: var(--success-soft);
  border-color: var(--success);
}

.security-acknowledgement.is-confirmed .acknowledgement-check {
  color: #ffffff;
  background: var(--success);
  border-color: var(--success);
}

:root[data-theme="dark"]
.security-acknowledgement.is-confirmed {
  background: var(--success-soft);
  border-color: #1d6b49;
}

@media (max-width: 640px) {
  .security-acknowledgement {
    padding: 13px;
  }
}

/* =========================================================
   Disabled Buttons
   ========================================================= */

.button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
  transform: none;
  box-shadow: none;
}

.button:disabled:hover {
  transform: none;
  box-shadow: none;
}

.nav-network {
  position: relative;

  cursor: pointer;
}

.bitcoin-icon {
  flex: 0 0 auto;
}

.network-label {
  white-space: nowrap;
}

.nav-chevron {
  display: block;
  width: 12px;
  height: 12px;
  color: #d8892b;
  transition: transform 120ms ease;
}

.nav-network[aria-expanded="true"] .nav-chevron,

/* Language */

.nav-language {
  min-width: 66px;

  font-size: 0.9rem;
}

.nav-language span:first-child {
  font-weight: 700;
}

.language-dropdown {
  width: 230px;
  max-height: min(520px, calc(100vh - 80px));
  overflow-y: auto;
}

.language-option {
  align-items: center;
}

.language-option .network-option-name {
  font-weight: 600;
}

:root[dir="rtl"] {
  direction: rtl;
}

:root[dir="rtl"] .network-option,
:root[dir="rtl"] .language-option {
  text-align: right;
}

.nav-theme {
  width: 40px;
  padding: 0;
  flex: 0 0 40px;
  color: var(--chrome-text);
}

.theme-icon-sun {
  display: none;
}

:root[data-theme="dark"] .theme-icon-sun {
  display: block;
}

:root[data-theme="dark"] .theme-icon-moon {
  display: none;
}

/* =========================================================
   Cards
   ========================================================= */

.card {
  margin-bottom: 24px;
  padding: 32px;

  background: var(--surface);

  border: 1px solid var(--border);
  border-radius: var(--radius-lg);

  box-shadow: var(--shadow-sm);
}

.card-header {
  margin-bottom: 28px;
}

.card-header h2,
.information-card h2 {
  margin: 0;

  color: var(--text);

  font-size: 1.35rem;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.card-header p,
.information-card > p {
  max-width: 680px;

  margin: 8px 0 0;

  color: var(--text-muted);
}

/* =========================================================
   Forms
   ========================================================= */

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;

  margin-bottom: 8px;

  color: var(--text);

  font-size: 0.875rem;
  font-weight: 650;
}

.form-group select {
  display: block;

  width: 100%;
  max-width: 100%;
  min-width: 0;
  min-height: 48px;

  padding: 0 42px 0 14px;

  color: var(--text);

  background-color: var(--surface);

  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);

  outline: none;

  appearance: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;

  background-image: linear-gradient(45deg, transparent 50%, #667085 50%),
    linear-gradient(135deg, #667085 50%, transparent 50%);
  background-position: calc(100% - 18px) 20px,
    calc(100% - 13px) 20px;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;

  transition: border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.form-group select:hover {
  border-color: var(--control-hover-border);
}

.form-group select:focus {
  border-color: var(--primary);

  box-shadow: 0 0 0 4px rgba(247, 147, 26, 0.12);
}

.form-group select option {
  color: var(--text);
  background: var(--surface);
}

/* =========================================================
   Buttons
   ========================================================= */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;

  min-height: 44px;

  padding: 10px 16px;

  color: var(--text);

  background: var(--surface);

  border: 1px solid var(--border-strong);
  border-radius: 10px;

  font-size: 0.9rem;
  font-weight: 650;

  box-shadow: var(--shadow-sm);

  transition: transform 0.15s ease,
    background 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.button:hover {
  background: var(--surface-hover);
  border-color: var(--control-hover-border);

  transform: translateY(-1px);

  box-shadow: 0 4px 10px rgba(16, 24, 40, 0.08);
}

.button:active {
  transform: translateY(0);
}

.button:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

.button-primary {
  color: #ffffff;

  background: linear-gradient(135deg, var(--primary), #f5a623);

  border-color: var(--primary);

  box-shadow: 0 6px 16px rgba(247, 147, 26, 0.22);
}

.button-primary:hover {
  color: #ffffff;

  background: linear-gradient(135deg, var(--primary-dark), var(--primary));

  border-color: var(--primary-dark);

  box-shadow: 0 8px 20px rgba(247, 147, 26, 0.28);
}

.button-danger {
  color: var(--danger);

  background: var(--danger-soft);

  border-color: var(--danger-border);
}

.button-danger:hover {
  color: var(--danger-hover-text);

  background: var(--danger-hover-bg);

  border-color: var(--danger-hover-border);
}

#generateButton {
  width: 100%;

  min-height: 52px;

  margin-top: 4px;

  font-size: 0.95rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* =========================================================
   Security Status
   ========================================================= */

.security-status {
  display: flex;
  align-items: center;
  gap: 10px;

  margin-top: 18px;
  padding: 12px 14px;

  color: #475467;

  background: var(--surface-soft);

  border: 1px solid var(--border);
  border-radius: 10px;

  font-size: 0.875rem;
}

.security-status::before {
  content: "";

  width: 8px;
  height: 8px;

  flex: 0 0 auto;

  border-radius: 50%;

  background: var(--success);

  box-shadow: 0 0 0 4px rgba(18, 183, 106, 0.10);
}

/* =========================================================
   Alerts
   ========================================================= */

.warning,
.danger-box {
  padding: 16px 18px;

  border-radius: 12px;

  font-size: 0.9rem;
}

.warning {
  margin-top: 18px;

  color: var(--warning);

  background: var(--warning-soft);

  border: 1px solid var(--warning-border);
}

.warning strong,
.danger-box strong {
  display: block;

  margin-bottom: 4px;

  font-weight: 700;
}

.warning p,
.danger-box p {
  margin: 0;

  line-height: 1.55;
}

.danger-box {
  margin-bottom: 30px;

  color: var(--danger-hover-text);

  background: linear-gradient(135deg, #fff8f7, var(--danger-soft));

  border: 1px solid var(--danger-border);
}

/* =========================================================
   Wallet
   ========================================================= */

.wallet-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.network-badge {
  display: inline-flex;
  align-items: center;

  flex: 0 0 auto;

  padding: 6px 10px;

  color: #9a5b00;

  background: var(--primary-soft);

  border: 1px solid #fed7aa;
  border-radius: 999px;

  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.wallet-section {
  padding: 28px 0;

  border-top: 1px solid var(--border);
}

.wallet-section:first-of-type {
  border-top: 0;
}

.section-header {
  margin-bottom: 18px;
}

.section-header h3,
.backup-section h3 {
  margin: 0;

  font-size: 1rem;
  line-height: 1.4;
}

.section-header p,
.backup-section > p {
  margin: 5px 0 0;

  color: var(--text-muted);

  font-size: 0.875rem;
}

/* Recovery phrase */

.mnemonic-grid {
  display: grid;

  grid-template-columns: repeat(3, minmax(0, 1fr));

  gap: 10px;

  margin-bottom: 18px;
}

.mnemonic-grid > * {
  min-width: 0;
}

.mnemonic-word {
  display: flex;
  align-items: center;
  gap: 10px;

  min-height: 48px;

  padding: 8px 12px;

  background: var(--surface-soft);

  border: 1px solid var(--border);
  border-radius: 10px;
}

.mnemonic-number {
  flex: 0 0 auto;

  color: var(--text-light);

  font-size: 0.72rem;
  font-weight: 700;
}

.mnemonic-value {
  min-width: 0;

  overflow: hidden;

  color: var(--text);

  font-family: "SFMono-Regular", Consolas, monospace;

  font-size: 0.85rem;
  font-weight: 600;

  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Hidden recovery phrase */

.mnemonic-grid.mnemonic-hidden .mnemonic-value {
  color: transparent;

  text-shadow: 0 0 8px var(--text);

  user-select: none;
}

/* Address */

.address-container {
  display: grid;

  grid-template-columns: minmax(0, 1fr) auto;

  gap: 12px;

  padding: 14px;

  background: #101828;

  border-radius: 12px;

  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.address {
  display: flex;
  align-items: center;

  min-width: 0;

  overflow-wrap: anywhere;

  color: #e4e7ec;

  font-size: 0.82rem;
  line-height: 1.6;
}

.address-container .button {
  align-self: center;

  color: #ffffff;

  background: #344054;

  border-color: #475467;

  box-shadow: none;
}

.address-container .button:hover {
  background: #475467;
  border-color: #667085;
}

.derivation-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;

  margin-top: 12px;

  color: var(--text-muted);

  font-size: 0.8rem;
}

.derivation-info code {
  color: var(--text);

  font-size: 0.78rem;

  overflow-wrap: anywhere;
}

/* Verification */

.verification {
  display: flex;
  align-items: flex-start;
  gap: 14px;

  padding: 16px;

  background: var(--success-soft);

  border: 1px solid var(--success-border);
  border-radius: 12px;

  color: #067647;
}

.verification-icon {
  display: flex;
  align-items: center;
  justify-content: center;

  width: 30px;
  height: 30px;

  flex: 0 0 auto;

  color: #ffffff;

  background: var(--success);

  border-radius: 50%;

  font-size: 0.9rem;
  font-weight: 800;
}

.verification strong {
  display: block;

  margin-bottom: 2px;
}

.verification p {
  margin: 0;

  color: #067647;

  font-size: 0.85rem;
}

/* =========================================================
   Advanced Information
   ========================================================= */

details {
  border: 1px solid var(--border);
  border-radius: 12px;

  overflow: hidden;

  background: var(--surface-soft);
}

summary {
  padding: 15px 16px;

  color: var(--text);

  cursor: pointer;

  font-size: 0.9rem;
  font-weight: 650;

  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "+";

  float: right;

  color: var(--text-muted);

  font-size: 1.1rem;
  font-weight: 400;
}

details[open] summary::after {
  content: "−";
}

.advanced-information {
  padding: 4px 16px 16px;

  border-top: 1px solid var(--border);
}

.data-row {
  display: grid;

  grid-template-columns: minmax(150px, 0.4fr) minmax(0, 1fr);

  gap: 20px;

  padding: 13px 0;

  border-bottom: 1px solid var(--border);

  font-size: 0.82rem;
}

.data-row:last-child {
  border-bottom: 0;
}

.data-row > span {
  color: var(--text-muted);
}

.data-row code {
  min-width: 0;

  overflow-wrap: anywhere;

  color: var(--text);

  font-size: 0.78rem;
}

/* =========================================================
   Information Card
   ========================================================= */

.information-card {
  margin-top: 8px;
}

.backup-section {
  padding-bottom: 0;
}

.backup-section > h3 {
  font-size: 1.05rem;
}

.standards {
  display: grid;

  grid-template-columns: repeat(3, minmax(0, 1fr));

  gap: 12px;

  margin-top: 26px;
  margin-bottom: 24px;
}

.standard {
  padding: 18px;

  background: var(--surface-soft);

  border: 1px solid var(--border);
  border-radius: 12px;
}

.standard strong {
  display: block;

  margin-bottom: 4px;

  color: var(--primary-dark);

  font-size: 0.95rem;
}

.standard span {
  display: block;

  color: var(--text-muted);

  font-size: 0.8rem;
}

/* =========================================================
   FOOTER
   ========================================================= */

.site-footer {
  padding: 20px 0 22px;

  color: var(--chrome-footer-text);

  background: var(--chrome-bg);

  border-top: 1px solid var(--chrome-border);

  text-align: center;

  font-family: Inter, ui-sans-serif, system-ui, sans-serif;

  font-size: 0.78rem;
}

/* Metadata row */

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 6px 10px;
  max-width: 100%;
}

.footer-meta-item {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  min-width: 0;
}

.footer-meta-item + .footer-meta-item::before {
  content: "|";
  margin-right: 6px;
  color: #667085;
}

.footer-meta-hash {
  max-width: 100%;
}

#appReleaseHash {
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* Labels */

.footer-meta-label {
  color: var(--chrome-muted);

  font-weight: 700;

  letter-spacing: 0.08em;
}

/* Values */

.footer-meta-value {
  color: var(--chrome-footer-value);

  font-weight: 800;

  letter-spacing: 0.04em;

  text-shadow:
    0 0 6px rgba(247, 147, 26, 0.12);
}

/* Separators */

.footer-divider {
  color: var(--chrome-footer-divider);

  font-weight: 400;

  user-select: none;
}

/* =========================================================
   FOOTER LINKS
   ========================================================= */

.footer-links {
  display: flex;

  align-items: center;
  justify-content: center;

  gap: 8px;

  margin-top: 14px;
}

.footer-icon-link {
  display: inline-flex;

  text-decoration: none;
}

/* Match navbar rounded-square controls */

.footer-icon-box {
  width: 38px;
  height: 38px;

  display: inline-flex;
  align-items: center;
  justify-content: center;

  background: var(--chrome-surface);

  border: 1px solid var(--chrome-border);

  border-radius: 10px;

  transition:
    background 0.15s ease,
    border-color 0.15s ease,
    transform 0.15s ease,
    box-shadow 0.15s ease;
}

.footer-icon {
  display: block;

  width: 19px;
  height: 19px;

  object-fit: contain;

  opacity: 0.75;

  filter: var(--footer-icon-filter);

  transition: opacity 0.15s ease;
}

/* Hover */

.footer-icon-link:hover .footer-icon-box {
  background: var(--chrome-hover);

  border-color: var(--primary);

  transform: translateY(-1px);

  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.footer-icon-link:hover .footer-icon {
  opacity: 1;
}

/* Keyboard focus */

.footer-icon-link:focus-visible {
  outline: 2px solid rgba(247, 147, 26, 0.65);

  outline-offset: 4px;

  border-radius: 10px;
}

/* Active */

.footer-icon-link:active .footer-icon-box {
  transform: translateY(0);
}

/* =========================================================
   Dark Theme
   ========================================================= */

:root[data-theme="dark"] .security-status {
  color: var(--text-muted);
}

:root[data-theme="dark"] .danger-box {
  color: var(--danger);
  background: linear-gradient(135deg, #321a18, var(--danger-soft));
}

:root[data-theme="dark"] .network-badge {
  color: #fdb96b;
  border-color: #704717;
}

:root[data-theme="dark"] .verification {
  color: #75e0a7;
  border-color: var(--success-border);
}

:root[data-theme="dark"] .verification p {
  color: #75e0a7;
}

:root[data-theme="dark"] .standard strong {
  color: var(--primary);
}

:root[data-theme="dark"] .address-container {
  background: #0b0d11;
  border: 1px solid #2d333d;
}

:root[data-theme="dark"] .address {
  color: #e5e7eb;
}

:root[data-theme="dark"] .address-container .button {
  background: #252a33;
  border-color: #454c59;
}

:root[data-theme="dark"] .address-container .button:hover {
  background: #303641;
  border-color: #626b7a;
}

:root[data-theme="dark"] .app-dialog::backdrop {
  background: rgba(0, 0, 0, 0.76);
}

:root[data-theme="dark"] .dialog-error {
  color: #fda29b;
  background: var(--danger-soft);
}

:root[data-theme="dark"] .backup-word-input {
  background: #0b0d11;
  border-color: var(--border-strong);
}

/* =========================================================
   Responsive — Tablet (≤ 1023px)
   ========================================================= */

@media (max-width: 1023px) {
  main.container {
    padding-top: 32px;
    padding-bottom: 52px;
  }

  .card {
    padding: 28px;
  }

  .wallet-header {
    gap: 18px;
  }

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

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

/* =========================================================
   Responsive — Mobile (≤ 767px)
   ========================================================= */

@media (max-width: 767px) {
  .container {
    width: min(calc(100% - 32px), var(--max-width));
  }

  main.container {
    padding-top: 24px;
    padding-bottom: 40px;
  }

  .card {
    margin-bottom: 18px;
    padding: 24px;

    border-radius: 16px;
  }

  .card-header {
    margin-bottom: 24px;
  }

  .card-header h2,
  .information-card h2 {
    font-size: 1.25rem;
  }

  .wallet-header {
    flex-direction: column;
    gap: 12px;
  }

  .network-badge {
    align-self: flex-start;
  }

  .wallet-section {
    padding: 24px 0;
  }

  .mnemonic-word {
    min-height: 46px;

    padding: 8px 10px;

    gap: 8px;
  }

  .mnemonic-number {
    font-size: 0.68rem;
  }

  .mnemonic-value {
    font-size: 0.8rem;
  }

  .button-row {
    flex-direction: column;
  }

  .button-row .button {
    width: 100%;
  }

  .address-container {
    grid-template-columns: 1fr;

    padding: 12px;
  }

  .address-container .button {
    width: 100%;
  }

  .derivation-info {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .verification {
    padding: 14px;
    gap: 12px;
  }

  .advanced-information {
    padding-inline: 14px;
  }

  .data-row {
    grid-template-columns: 1fr;

    gap: 4px;
  }

  summary {
    padding: 14px;
  }

  .standards {
    grid-template-columns: 1fr;

    gap: 10px;
  }

  .standard {
    padding: 16px;
  }

  .danger-box,
  .warning {
    padding: 14px 16px;
  }

  .form-group select {
    padding-left: 12px;
    padding-right: 38px;

    font-size: 0.9rem;
  }
}

/* =========================================================
   Responsive — Mobile Navbar (≤ 719px)
   ========================================================= */

@media (max-width: 719px) {
  .network-dropdown,
  .language-dropdown {
    position: fixed;
    top: 59px;
    right: max(12px, env(safe-area-inset-right));
    left: max(12px, env(safe-area-inset-left));
    width: auto;
    max-width: none;
    max-height: calc(100dvh - 71px);
    overflow-y: auto;
  }

  .navbar-inner {
    gap: 10px;
    padding-inline: 10px;
  }

  .brand-icon {
    border-radius: 8px;
    font-size: 21px;
  }

  .brand-name {
    font-size: 19px;
  }

  .navbar-actions {
    gap: 6px;
  }

  /*
     * Keep the touch target comfortable,
     * but don't make the icons themselves huge.
     */
  .nav-control {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 8px;
  }

  .nav-download,
  .nav-network {
    width: 40px;
  }

  .download-label {
    display: none;
  }

  .network-label,
  .nav-network .nav-chevron,
  .nav-language .nav-chevron {
    display: none;
  }

  .nav-language {
    width: 40px;
    min-width: 40px;
    font-size: 14px;
  }
}

/* =========================================================
   Responsive — Dialogs (≤ 640px)
   ========================================================= */

@media (max-width: 640px) {
  .app-dialog {
    width: min(calc(100% - 20px), 560px);
    max-height: calc(100vh - 20px);
  }

  .dialog-card {
    max-height: calc(100vh - 20px);
    padding: 20px 16px;
  }

  .backup-challenge-fields {
    grid-template-columns: 1fr;
  }

  .dialog-actions {
    flex-direction: column-reverse;
  }

  .dialog-actions .button {
    width: 100%;
  }

  .backup-acknowledgement {
    padding: 13px;
  }
}

/* =========================================================
   Responsive — Small Mobile (≤ 480px)
   ========================================================= */

@media (max-width: 480px) {
  .site-footer {
    padding: 28px 16px 32px;
  }

  .footer-links {
    margin-top: 18px;
  }

  .footer-meta {
    gap: 4px;
    font-size: 0.58rem;
    letter-spacing: 0;
  }

  .footer-meta-label,
  .footer-meta-value {
    letter-spacing: 0;
  }

  .footer-manifest {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    margin-top: 4px;
  }

  #appReleaseHash {
    max-width: 100%;
    overflow-wrap: anywhere;
    word-break: break-all;
  }

  .container {
    width: min(calc(100% - 24px), var(--max-width));
  }

  main.container {
    padding-top: 16px;
    padding-bottom: 32px;
  }

  .card {
    margin-bottom: 16px;
    padding: 20px;

    border-radius: 14px;
  }

  .card-header {
    margin-bottom: 20px;
  }

  .card-header h2,
  .information-card h2 {
    font-size: 1.2rem;
  }

  .card-header p,
  .information-card > p {
    font-size: 0.875rem;
  }

  .form-group {
    margin-bottom: 18px;
  }

  .form-group select {
    padding-left: 11px;
    padding-right: 36px;

    font-size: 0.85rem;
  }

  #generateButton {
    min-height: 50px;
  }

  .security-status {
    align-items: flex-start;

    padding: 11px 12px;

    font-size: 0.82rem;
  }

  .mnemonic-grid {
    gap: 7px;
  }

  .mnemonic-word {
    min-height: 44px;

    padding: 7px 8px;

    gap: 6px;
  }

  .mnemonic-number {
    font-size: 0.62rem;
  }

  .mnemonic-value {
    font-size: 0.74rem;
  }

  .address-container {
    padding: 10px;
  }

  .address {
    font-size: 0.76rem;

    line-height: 1.55;
  }

  .derivation-info {
    font-size: 0.76rem;
  }

  .derivation-info code {
    font-size: 0.72rem;
  }

  .verification {
    align-items: flex-start;

    padding: 12px;
  }

  .verification-icon {
    width: 28px;
    height: 28px;
  }

  .verification p {
    font-size: 0.8rem;
  }

  .advanced-information {
    padding-inline: 12px;
  }

  .data-row {
    padding: 11px 0;

    font-size: 0.78rem;
  }

  .data-row code {
    font-size: 0.72rem;
  }

  summary {
    padding: 13px;

    font-size: 0.85rem;
  }

  .standard {
    padding: 14px;
  }
}

@media (max-width: 400px) {
  .brand-name {
    font-size: 17px;
  }

  .navbar-actions {
    gap: 4px;
  }
}

/* =========================================================
   Responsive — Very Small Screens (≤ 359px)
   ========================================================= */

@media (max-width: 359px) {
  .brand-text {
    display: none;
  }

  .container {
    width: min(calc(100% - 20px), var(--max-width));
  }

  .card {
    margin-bottom: 14px;
    padding: 16px;
  }

  .wallet-section {
    padding: 20px 0;
  }

  /*
     * A single column gives the recovery phrase enough room
     * on very narrow devices such as 320px phones.
     */
  .mnemonic-grid {
    grid-template-columns: 1fr;
  }

  .mnemonic-word {
    padding: 8px 10px;
  }

  .mnemonic-number {
    font-size: 0.68rem;
  }

  .mnemonic-value {
    font-size: 0.8rem;
  }

  .button {
    min-height: 46px;

    padding-inline: 14px;
  }

  .danger-box,
  .warning {
    padding: 13px 14px;

    font-size: 0.82rem;
  }

  .security-status {
    font-size: 0.78rem;
  }

  .verification {
    padding: 11px;
    gap: 9px;
  }

  .verification-icon {
    width: 26px;
    height: 26px;

    font-size: 0.8rem;
  }

  .verification strong {
    font-size: 0.85rem;
  }

  .verification p {
    font-size: 0.75rem;
  }

  .address {
    font-size: 0.72rem;
  }

  .standard {
    padding: 13px;
  }

  .form-group select {
    min-height: 46px;

    padding-left: 10px;
    padding-right: 34px;

    font-size: 0.82rem;
  }

  .footer-links {
    gap: 12px;
  }

  .footer-icon-box {
    width: 40px;
    height: 40px;
  }

  .footer-icon {
    width: 21px;
    height: 21px;
  }
}

/* =========================================================
   Reduced Motion
   ========================================================= */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;

    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* =========================================================
   Print
   ========================================================= */

@media print {
  body {
    background: #ffffff;
  }

  .site-header,
  .site-footer,
  .app-dialog,
  #generator,
  .information-card,
  .button-row,
  .network-badge,
  .danger-box,
  .security-status {
    display: none !important;
  }

  main.container {
    width: 100%;
    max-width: none;

    padding: 0;
  }

  .card {
    border: 0;
    box-shadow: none;
  }

  .wallet-card {
    display: block !important;
  }

  .wallet-section {
    break-inside: avoid;
  }

  .mnemonic-word {
    background: #ffffff;
    border: 1px solid #cccccc;
  }

  /*
     * Printing must reveal the phrase even if the user
     * currently has the on-screen recovery phrase hidden.
     */
  .mnemonic-grid.mnemonic-hidden .mnemonic-value {
    filter: none !important;

    color: var(--text) !important;

    text-shadow: none !important;

    opacity: 1 !important;

    visibility: visible !important;
  }

  .address-container {
    background: #ffffff;
    border: 1px solid #cccccc;
  }

  .address {
    color: #000000;
  }
}