* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: "Source Sans 3 Local", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(900px 420px at 12% -12%, var(--page-glow-a), transparent 72%),
    radial-gradient(860px 420px at 86% 112%, var(--page-glow-b), transparent 72%),
    linear-gradient(180deg, var(--bg-start), var(--bg-end));
  line-height: 1.56;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--link);
}

a:hover {
  text-decoration: none;
}

.skip-link {
  position: absolute;
  top: -44px;
  left: 12px;
  padding: 8px 12px;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  text-decoration: none;
  z-index: 999;
}

.skip-link:focus {
  top: 12px;
}

.page {
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
  padding: 24px clamp(16px, 4vw, 60px) 60px;
}

.topbar {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 14px;
  padding: 12px 20px;
  border: none;
  border-radius: var(--radius-pill);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.brand {
  display: inline-block;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-emphasis);
  text-decoration: none;
}

.site-nav {
  width: 100%;
}

.nav-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 0;
}

.nav-list a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 10px;
  border-radius: 8px;
  border: 1px solid var(--nav-border);
  color: var(--ink-200);
  text-decoration: none;
  font-size: 0.92rem;
}

.nav-list a:hover {
  background: var(--nav-hover);
}

.nav-list a.is-active {
  background: var(--nav-active-bg);
  border-color: var(--nav-active-border);
  color: var(--ink-100);
}

.theme-toggle {
  border: 1px solid var(--nav-border);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--surface-2) 75%, transparent);
  color: var(--ink-200);
  min-height: 36px;
  padding: 0 12px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
}

.theme-toggle:hover {
  background: var(--nav-hover);
  border-color: var(--border-2);
  color: var(--ink-100);
}

.site-header {
  margin-bottom: 16px;
}

.site-header.hero {
  text-align: center;
}

h1 {
  margin: 0;
  font-size: clamp(1.8rem, 4.4vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: 0.01em;
  color: var(--text-emphasis);
}

h2 {
  margin: 0 0 12px;
  font-size: 1.2rem;
  color: var(--text-emphasis);
}

h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  color: var(--text-emphasis);
}

.subtitle {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 1rem;
}

.intro {
  margin: 12px auto 0;
  max-width: 800px;
  color: var(--text-soft);
  font-size: 0.98rem;
}

.privacy-note {
  margin: 14px auto 0;
  max-width: 760px;
  padding: 10px 12px;
  border: 1px solid var(--soft-border);
  border-radius: 10px;
  background: var(--surface-muted);
  color: var(--text-soft);
  font-size: 0.95rem;
}

main {
  display: grid;
  gap: 16px;
}

.card {
  background: var(--panel-soft);
  border: none;
  border-radius: var(--radius-2);
  box-shadow: var(--shadow);
  padding: clamp(24px, 4vw, 40px);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.field-label {
  display: block;
  margin-bottom: 8px;
  color: var(--text-soft);
  font-size: 0.95rem;
  font-weight: 600;
}

.helper-text {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.tool-controls {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.control-row {
  display: grid;
  gap: 8px;
}

.control-row label {
  color: var(--text-soft);
  font-size: 0.94rem;
  font-weight: 600;
}

.input-select {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--field-border);
  border-radius: 10px;
  background: var(--field-bg);
  color: var(--text);
  padding: 8px 10px;
  font-size: 0.95rem;
}

.passphrase-controls {
  border: 1px solid var(--soft-border);
  border-radius: 10px;
  background: var(--soft-bg);
  padding: 12px;
  display: grid;
  gap: 10px;
}

.passphrase-controls.is-hidden {
  display: none;
}

.passphrase-grid {
  display: grid;
  gap: 10px;
}

.passphrase-toggles {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.passphrase-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.passphrase-toggle input {
  accent-color: var(--primary);
}

.password-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
}

.password-input {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--field-border);
  border-radius: 10px;
  background: var(--field-bg);
  color: var(--text);
  font-size: 1rem;
}

.password-input::placeholder {
  color: var(--text-subtle);
}

.password-input:focus-visible,
.input-select:focus-visible,
button:focus-visible,
.nav-list a:focus-visible,
.cta-link:focus-visible,
.footer-links a:focus-visible,
.theme-toggle:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

button,
.cta-link {
  border: 1px solid transparent;
  border-radius: 10px;
  cursor: pointer;
  color: #f6fbff;
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1;
  min-height: 44px;
  padding: 0 14px;
  transition: background-color 220ms ease, border-color 220ms ease, transform 220ms ease;
}

button:active,
.cta-link:active {
  transform: translateY(1px);
}

.btn-toggle {
  background: var(--secondary);
  border-color: var(--border-1);
}

.btn-toggle:hover {
  background: var(--secondary-hover);
}

.actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 14px;
  align-items: center;
}

.btn-primary,
.cta-link {
  background: var(--primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-primary:hover,
.cta-link:hover {
  background: var(--primary-hover);
  text-decoration: none;
}

.btn-secondary {
  background: var(--secondary);
  border-color: var(--border-1);
}

.btn-secondary:hover {
  background: var(--secondary-hover);
}

.copy-status {
  min-height: 20px;
  font-size: 0.9rem;
  color: var(--text-subtle);
  text-align: left;
}

.passphrase-note,
.microcopy {
  margin: 10px 0 0;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.microcopy {
  color: var(--text-subtle);
}

.meter-wrap {
  margin-top: 14px;
}

.meter-track {
  width: 100%;
  height: 13px;
  background: color-mix(in srgb, var(--surface-1) 85%, transparent);
  border: 1px solid var(--field-border);
  border-radius: 999px;
  overflow: hidden;
}

.meter-fill {
  width: 0;
  height: 100%;
  border-radius: inherit;
  transition: width 220ms ease, background-color 220ms ease;
  background: var(--weak);
}

.meter-fill.weak {
  background: var(--weak);
}

.meter-fill.medium {
  background: var(--medium);
}

.meter-fill.strong {
  background: var(--strong);
}

.meter-fill.xstrong {
  background: var(--xstrong);
}

.result {
  margin-top: 14px;
  background: var(--soft-bg);
  border: 1px solid var(--soft-border);
  border-radius: 10px;
  padding: 12px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 220ms ease, transform 220ms ease;
}

.result.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.result p {
  margin: 0 0 8px;
  font-size: 0.95rem;
}

.result p:last-child {
  margin-bottom: 0;
}

.target-status {
  font-weight: 600;
}

.target-status.good {
  color: var(--strong);
}

.target-status.warning {
  color: var(--medium);
}

.strength-text.weak {
  color: var(--weak);
}

.strength-text.medium {
  color: var(--medium);
}

.strength-text.strong {
  color: var(--strong);
}

.strength-text.xstrong {
  color: var(--xstrong);
}

.suggestions,
.trust-block {
  margin-top: 14px;
}

.suggestions-list,
.trust-points,
.explain-list,
.best-list {
  margin: 0;
  padding-left: 18px;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.suggestions-list li + li,
.trust-points li + li,
.explain-list li + li,
.best-list li + li {
  margin-top: 6px;
}

.methodology code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.9em;
  background: var(--field-bg);
  border: 1px solid var(--field-border);
  border-radius: 6px;
  padding: 1px 5px;
}

.generator-info p {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.noscript-warning {
  margin: 0 0 16px;
  border: 1px solid color-mix(in srgb, var(--warning-500) 72%, transparent);
  background: color-mix(in srgb, var(--warning-500) 18%, transparent);
  color: color-mix(in srgb, var(--warning-500) 82%, var(--ink-100));
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 0.93rem;
}

.ad-slot {
  margin: 16px 0;
  border: 1px dashed var(--soft-border);
  border-radius: 12px;
  color: var(--muted);
  background: var(--surface-muted);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-align: center;
  padding: 8px;
}

.ad-banner {
  min-height: 92px;
}

.ad-rectangle {
  min-height: 264px;
}

.faq article + article {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--soft-border);
}

.faq p {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.94rem;
}

.install-actions {
  margin: 14px auto 0;
  max-width: 760px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.install-btn[hidden] {
  display: none;
}

.offline-status {
  display: inline-block;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--soft-border);
  background: var(--surface-muted);
  color: var(--text-soft);
  font-size: 0.9rem;
}

.offline-status.is-offline {
  border-color: color-mix(in srgb, var(--warning-500) 72%, transparent);
  background: color-mix(in srgb, var(--warning-500) 16%, transparent);
  color: color-mix(in srgb, var(--warning-500) 82%, var(--ink-100));
}

.footer {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--soft-border);
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 8px;
}

.footer-links a {
  color: var(--ink-200);
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
}

@media (min-width: 768px) {
  .page {
    padding: 26px 20px 34px;
  }

  .topbar {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .card {
    padding: clamp(24px, 4vw, 40px);
  }

  .actions {
    grid-template-columns: auto auto 1fr;
    gap: 12px;
  }

  .copy-status {
    text-align: left;
    align-self: center;
  }

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

@media (max-width: 640px) {
  .page {
    width: 100%;
    padding: 16px 0;
  }
  .card {
    padding: 24px 16px;
    border-radius: 0;
    margin-bottom: 8px;
  }
}

@media (min-width: 1024px) {
  .page {
    padding-top: 32px;
  }

  h2 {
    font-size: 1.35rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}