/* 
 * emailtest.ing — Offline-Ready Tailwind CSS Utility Bundle
 * Works completely offline without external CDN requests.
 */
*, ::before, ::after { box-sizing: border-box; border-width: 0; border-style: solid; border-color: #e2e8f0; }
html, body { margin: 0; padding: 0; font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; line-height: 1.5; color: #0f172a; background-color: #f8fafc; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; font-size: 100%; line-height: inherit; color: inherit; margin: 0; }
button { cursor: pointer; background-color: transparent; background-image: none; }
table { text-indent: 0; border-color: inherit; border-collapse: collapse; }
pre, code, .font-mono { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }

/* Layout & Flexbox */
.min-h-screen { min-height: 100vh; }
.h-screen { height: 100vh; }
.h-full { height: 100%; }
.w-full { width: 100%; }
.w-64 { width: 16rem; }
.w-72 { width: 18rem; }
.max-w-md { max-width: 28rem; }
.max-w-7xl { max-width: 80rem; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex-1 { flex: 1 1 0%; }
.flex-shrink-0, .shrink-0 { flex-shrink: 0; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-baseline { align-items: baseline; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: 0.25rem; }
.gap-1\.5 { gap: 0.375rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.space-y-1 > :not([hidden]) ~ :not([hidden]) { margin-top: 0.25rem; }
.space-y-2 > :not([hidden]) ~ :not([hidden]) { margin-top: 0.5rem; }
.space-y-3 > :not([hidden]) ~ :not([hidden]) { margin-top: 0.75rem; }
.space-y-4 > :not([hidden]) ~ :not([hidden]) { margin-top: 1rem; }
.space-y-6 > :not([hidden]) ~ :not([hidden]) { margin-top: 1.5rem; }

/* Grid */
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
@media (min-width: 640px) {
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sm\:flex-row { flex-direction: row; }
  .sm\:items-center { align-items: center; }
}
@media (min-width: 1024px) {
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\:col-span-2 { grid-column: span 2 / span 2; }
}

/* Spacing */
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-5 { padding: 1.25rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-2\.5 { padding-left: 0.625rem; padding-right: 0.625rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-3\.5 { padding-left: 0.875rem; padding-right: 0.875rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-5 { padding-left: 1.25rem; padding-right: 1.25rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.px-10 { padding-left: 2.5rem; padding-right: 2.5rem; }
.py-0\.5 { padding-top: 0.125rem; padding-bottom: 0.125rem; }
.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-1\.5 { padding-top: 0.375rem; padding-bottom: 0.375rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-2\.5 { padding-top: 0.625rem; padding-bottom: 0.625rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-3\.5 { padding-top: 0.875rem; padding-bottom: 0.875rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-auto { margin-top: auto; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Colors - Backgrounds */
.bg-slate-950 { background-color: #020617; }
.bg-slate-900 { background-color: #0f172a; }
.bg-slate-800 { background-color: #1e293b; }
.bg-slate-800\/60 { background-color: rgba(30, 41, 59, 0.6); }
.bg-slate-100 { background-color: #f1f5f9; }
.bg-slate-50 { background-color: #f8fafc; }
.bg-white { background-color: #ffffff; }
.bg-indigo-600 { background-color: #4f46e5; }
.bg-indigo-500 { background-color: #6366f1; }
.bg-indigo-50 { background-color: #eef2ff; }
.bg-emerald-500 { background-color: #10b981; }
.bg-emerald-50 { background-color: #ecfdf5; }
.bg-amber-50 { background-color: #fffbeb; }
.bg-rose-600 { background-color: #e11d48; }
.bg-rose-50 { background-color: #fff1f2; }

/* Colors - Text */
.text-white { color: #ffffff; }
.text-slate-900 { color: #0f172a; }
.text-slate-800 { color: #1e293b; }
.text-slate-700 { color: #334155; }
.text-slate-600 { color: #475569; }
.text-slate-500 { color: #64748b; }
.text-slate-400 { color: #94a3b8; }
.text-slate-300 { color: #cbd5e1; }
.text-indigo-600 { color: #4f46e5; }
.text-indigo-400 { color: #818cf8; }
.text-indigo-700 { color: #4338ca; }
.text-emerald-700 { color: #047857; }
.text-emerald-400 { color: #34d399; }
.text-amber-700 { color: #b45309; }
.text-rose-700 { color: #be123c; }
.text-rose-600 { color: #e11d48; }

/* Typography */
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.uppercase { text-transform: uppercase; }
.tracking-wider { letter-spacing: 0.05em; }
.tracking-tight { letter-spacing: -0.025em; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.whitespace-nowrap { white-space: nowrap; }
.whitespace-pre-wrap { white-space: pre-wrap; }
.break-all { word-break: break-all; }

/* Borders & Radius */
.border { border-width: 1px; }
.border-b { border-bottom-width: 1px; }
.border-t { border-top-width: 1px; }
.border-r { border-right-width: 1px; }
.border-slate-200 { border-color: #e2e8f0; }
.border-slate-300 { border-color: #cbd5e1; }
.border-slate-800 { border-color: #1e293b; }
.border-indigo-200 { border-color: #c7d2fe; }
.border-rose-200 { border-color: #fecdd3; }
.border-emerald-200 { border-color: #a7f3d0; }
.border-amber-200 { border-color: #fde68a; }
.divide-y > :not([hidden]) ~ :not([hidden]) { border-top-width: 1px; border-color: #e2e8f0; }
.rounded { border-radius: 0.25rem; }
.rounded-md { border-radius: 0.375rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-full { border-radius: 9999px; }

/* Shadows & Overflow */
.shadow-xs { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.04); }
.shadow-sm { box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.08), 0 1px 2px -1px rgba(0, 0, 0, 0.08); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1); }
.overflow-hidden { overflow: hidden; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }

/* Interactive states */
.transition { transition-property: color, background-color, border-color, opacity, box-shadow; transition-duration: 150ms; }
.hover\:bg-slate-800:hover { background-color: #1e293b; }
.hover\:bg-slate-100:hover { background-color: #f1f5f9; }
.hover\:bg-slate-50:hover { background-color: #f8fafc; }
.hover\:bg-indigo-700:hover { background-color: #4338ca; }
.hover\:bg-rose-700:hover { background-color: #be123c; }
.hover\:bg-rose-100:hover { background-color: #ffe4e6; }
.hover\:text-white:hover { color: #ffffff; }
.hover\:text-indigo-600:hover { color: #4f46e5; }
.hover\:underline:hover { text-decoration: underline; }
input:focus, select:focus { outline: 2px solid #4f46e5; outline-offset: -1px; border-color: #4f46e5; }

/* Sandboxed viewer iframe */
.email-sandbox-frame {
  width: 100%;
  min-height: 460px;
  border: 1px solid #e2e8f0;
  border-radius: 0.5rem;
  background-color: #ffffff;
}