:root {
  --page-bg: #f4f7fb;
  --card-bg: rgba(255, 255, 255, 0.84);
  --card-border: rgba(14, 165, 233, 0.12);
  --text-soft: #496179;
  --shadow: 0 22px 70px rgba(15, 23, 42, 0.10);
  --brand-ink: #0f172a;
  --brand-accent: #0ea5e9;
  --brand-accent-strong: #0284c7;
  --brand-cyan: #22d3ee;
  --brand-warm: #c7d2fe;
}

html.dark {
  --page-bg: #020617;
  --card-bg: rgba(15, 23, 42, 0.78);
  --card-border: rgba(56, 189, 248, 0.16);
  --text-soft: #94a3b8;
  --brand-ink: #f8fafc;
}

body {
  background:
    radial-gradient(circle at top left, rgba(14, 165, 233, 0.16), transparent 28%),
    radial-gradient(circle at top right, rgba(34, 211, 238, 0.10), transparent 30%),
    radial-gradient(circle at bottom right, rgba(79, 70, 229, 0.08), transparent 26%),
    var(--page-bg);
}

.mesh-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(135deg, rgba(14,165,233,0.08), transparent 38%), linear-gradient(315deg, rgba(34,211,238,0.06), transparent 42%);
  opacity: 0.9;
  z-index: -1;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 50;
  border-radius: 9999px;
  background: #0f172a;
  color: #fff;
  padding: 0.75rem 1rem;
  transition: top .2s ease;
}

.skip-link:focus {
  top: 1rem;
}

.nav-link {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease, opacity .2s ease, transform .2s ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--brand-accent);
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  border-radius: 1rem;
  padding: .9rem 1.25rem;
  font-weight: 700;
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, border-color .2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand-accent-strong), var(--brand-cyan));
  color: white;
  box-shadow: 0 16px 40px rgba(2,132,199,.24);
}

.btn-secondary {
  background: rgba(255,255,255,.65);
  border: 1px solid rgba(148,163,184,.24);
  color: #0f172a;
}

html.dark .btn-secondary {
  background: rgba(15,23,42,.65);
  color: #e2e8f0;
}

.btn-primary:hover,
.btn-secondary:hover,
.btn-primary:focus-visible,
.btn-secondary:focus-visible {
  transform: translateY(-1px);
}

.card,
.glass-card,
.section-card,
.preview-card,
.compare-preview,
.template-card,
.tutorial-card,
.help-card,
.tip-card,
.faq-card,
.wizard-card {
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  backdrop-filter: blur(24px);
  border-radius: 1.75rem;
  box-shadow: var(--shadow);
}

.section-card {
  padding: 1.25rem;
}

@media (min-width: 768px) {
  .section-card { padding: 1.75rem; }
}

.eyebrow {
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--brand-accent);
}

.section-title {
  margin-top: .35rem;
  font-size: clamp(1.7rem, 4vw, 2.8rem);
  font-weight: 900;
  letter-spacing: -.04em;
  color: var(--brand-ink);
}

html.dark .section-title,
html.dark .field span,
html.dark .text-slate-950,
html.dark .text-slate-900,
html.dark .text-slate-800,
html.dark .text-slate-700,
html.dark .text-slate-600 {
  color: #f8fafc !important;
}

.section-copy {
  margin-top: .85rem;
  max-width: 52rem;
  color: var(--text-soft);
  line-height: 1.8;
}

.field {
  display: flex;
  flex-direction: column;
  gap: .55rem;
}

.field span {
  font-size: .8rem;
  font-weight: 700;
  color: #334155;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border-radius: 1rem;
  border: 1px solid rgba(148,163,184,.2);
  background: rgba(255,255,255,.75);
  padding: .9rem 1rem;
  color: #0f172a;
  outline: none;
}

html.dark .field input,
html.dark .field select,
html.dark .field textarea {
  background: rgba(15,23,42,.88);
  color: #e2e8f0;
}

.field input:focus,
.field select:focus,
.field textarea:focus,
.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.template-card button:focus-visible {
  box-shadow: 0 0 0 4px rgba(14,165,233,.18);
}

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

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

.info-pill {
  border-radius: 9999px;
  border: 1px solid rgba(14,165,233,.16);
  background: rgba(14,165,233,.07);
  color: #075985;
  padding: .85rem 1rem;
  font-size: .9rem;
  font-weight: 700;
}

html.dark .info-pill {
  color: #bae6fd;
  background: rgba(14,165,233,.12);
}

.signature-preview {
  min-height: 18rem;
}

.template-card,
.tutorial-card,
.help-card,
.tip-card,
.faq-card {
  padding: 1rem;
}

.compare-preview {
  min-height: 12rem;
  padding: 1rem;
}

.template-card.active,
.compare-preview.active,
.template-card:hover {
  border-color: rgba(14,165,233,.42);
  transform: translateY(-2px);
}

.template-card {
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.chip {
  border-radius: 9999px;
  border: 1px solid rgba(148,163,184,.24);
  background: rgba(255,255,255,.6);
  padding: .55rem .9rem;
  font-size: .85rem;
  font-weight: 700;
}

html.dark .chip {
  background: rgba(15,23,42,.7);
}

.wizard-card {
  padding: 1rem;
}

.wizard-card.active {
  border-color: rgba(14,165,233,.42);
  background: linear-gradient(180deg, rgba(14,165,233,.12), rgba(255,255,255,.74));
}

.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.signature-markup {
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.signature-markup .name {
  line-height: 1;
}

.signature-markup .meta {
  font-size: .85rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  opacity: .8;
}

.animate-fade {
  animation: fade-in .3s ease;
}

@keyframes fade-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}