/* LinuxTax — minimal vanilla CSS */
:root {
  --fg: #1a1f2c;
  --fg-soft: #4a5363;
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --accent: #b81e2c;          /* CRA-ish red */
  --accent-dark: #8e1622;
  --border: #d9dfe6;
  --max: 1080px;
  --radius: 6px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--fg);
  background: var(--bg);
}
a { color: var(--accent-dark); text-decoration: none; }
a:hover, a:focus { text-decoration: underline; }
h1, h2, h3 { color: var(--fg); line-height: 1.25; margin-top: 0; }
h1 { font-size: 2.1rem; }
h2 { font-size: 1.5rem; margin-top: 2rem; }
h3 { font-size: 1.15rem; margin-top: 1.5rem; }
p { margin: 0 0 1em; }
hr { border: 0; border-top: 1px solid var(--border); margin: 2rem 0; }

/* skip link */
.skip { position: absolute; left: -1000px; top: -1000px; }
.skip:focus { left: 1rem; top: 1rem; background: #000; color: #fff; padding: .5rem 1rem; z-index: 100; }

/* layout */
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1.5rem; }
header.site, footer.site { background: var(--bg-soft); border-bottom: 1px solid var(--border); }
footer.site { border-bottom: 0; border-top: 1px solid var(--border); margin-top: 3rem; padding: 2rem 0; color: var(--fg-soft); font-size: .9rem; }
header.site .wrap { display: flex; align-items: center; gap: 1.5rem; padding-top: .75rem; padding-bottom: .75rem; flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 1.1rem; color: var(--fg); display: inline-flex; align-items: center; gap: .5rem; }
.brand:hover { text-decoration: none; }
.brand .flags { display: inline-flex; gap: 2px; align-items: center; }
.brand .flag { height: 1.1em; width: auto; display: block; border: 1px solid var(--border); border-radius: 1px; }
nav.primary { margin-left: auto; }
nav.primary a { margin-left: 1.25rem; color: var(--fg-soft); font-size: .95rem; }
nav.primary a[aria-current="page"] { color: var(--fg); font-weight: 600; }
.lang-switch { margin-left: 1.25rem; padding-left: 1.25rem; border-left: 1px solid var(--border); }
.lang-switch a { color: var(--fg-soft); font-size: .95rem; }

/* hero */
.hero { padding: 3.5rem 0 2.5rem; }
.hero h1 { font-size: 2.5rem; margin-bottom: .75rem; }
.hero p.lede { font-size: 1.15rem; color: var(--fg-soft); max-width: 38em; }
.cta-row { margin-top: 1.5rem; display: flex; gap: .75rem; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: .65rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn.primary { background: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-dark); text-decoration: none; }
.btn.ghost { background: transparent; color: var(--fg); border-color: var(--border); }
.btn.ghost:hover { background: var(--bg-soft); text-decoration: none; }

/* badges */
.badges { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2rem; align-items: center; }
.badge {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .35rem .7rem;
  border: 1px solid var(--border);
  border-radius: 99px;
  font-size: .85rem;
  color: var(--fg-soft);
  background: #fff;
}

/* feature grid */
.grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin: 1.5rem 0;
}
.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  background: #fff;
}
.card h3 { margin-top: 0; font-size: 1.05rem; }
.card p { margin-bottom: 0; color: var(--fg-soft); font-size: .95rem; }

/* table-ish list */
.list-form { list-style: none; padding: 0; }
.list-form li {
  padding: .55rem .75rem;
  border-bottom: 1px solid var(--border);
  display: flex; gap: 1rem; align-items: baseline;
}
.list-form li:first-child { border-top: 1px solid var(--border); }
.list-form code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .85rem;
  background: var(--bg-soft);
  padding: .1rem .4rem;
  border-radius: 3px;
  color: var(--fg);
}

/* pricing */
.tiers { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); margin: 2rem 0; }
.tier { border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; background: #fff; }
.tier.featured { border-color: var(--accent); box-shadow: 0 4px 24px rgba(184,30,44,.07); }
.tier h3 { margin-top: 0; }
.tier .price { font-size: 2rem; font-weight: 700; margin: .5rem 0; }
.tier .price small { font-size: .8rem; color: var(--fg-soft); font-weight: 400; }
.tier ul { padding-left: 1.2em; margin: 1rem 0; color: var(--fg-soft); }
.tier ul li { margin: .3rem 0; }

/* faq */
details { border: 1px solid var(--border); border-radius: var(--radius); padding: .9rem 1.1rem; margin: .6rem 0; background: #fff; }
details[open] { background: var(--bg-soft); }
details summary { cursor: pointer; font-weight: 600; }
details > p { margin: .75rem 0 0; color: var(--fg-soft); }

/* contact block */
.contact-block { background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; }
.contact-block dt { font-weight: 600; margin-top: .75rem; }
.contact-block dd { margin: .1rem 0 0; color: var(--fg-soft); }

/* forms */
label { display: block; font-weight: 600; margin: 1rem 0 .35rem; color: var(--fg); }
input[type="email"],
input[type="number"],
input[type="text"] {
  font: inherit;
  color: var(--fg);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .55rem .7rem;
  width: 100%;
  max-width: 24rem;
}
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.fineprint { font-size: .85rem; color: var(--fg-soft); }

/* download / donate page */
.donate-card {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1.5rem;
  align-items: stretch;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  background: #fff;
  margin: 1.5rem 0;
}
.donate-card h2 { margin-top: 0; font-size: 1.2rem; }
.donate-card p { color: var(--fg-soft); font-size: .95rem; }
.donate-form, .skip-block { display: flex; flex-direction: column; }
.donate-form .btn, .skip-block .btn { align-self: flex-start; margin-top: auto; }
.amount-row {
  display: inline-flex;
  align-items: stretch;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  width: max-content;
  max-width: 100%;
  margin-bottom: 1rem;
}
.amount-row:focus-within { outline: 2px solid var(--accent); outline-offset: 1px; }
.amount-prefix {
  padding: .55rem .7rem;
  background: var(--bg-soft);
  border-right: 1px solid var(--border);
  color: var(--fg-soft);
  font-weight: 600;
}
.amount-row input[type="number"] {
  border: 0;
  border-radius: 0;
  width: 8rem;
}
.amount-row input[type="number"]:focus { outline: none; }
.amount-presets { display: flex; gap: .5rem; margin-bottom: 1rem; }
.preset {
  padding: .35rem .9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  color: var(--fg);
  font: inherit;
  cursor: pointer;
}
.preset:hover { background: var(--bg-soft); }
.preset.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.donate-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--fg-soft);
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  position: relative;
}
.donate-divider::before {
  content: "";
  position: absolute;
  top: 0; bottom: 0; left: 50%;
  width: 1px;
  background: var(--border);
}
.donate-divider span {
  background: #fff;
  padding: .25rem 0;
  position: relative;
}
@media (max-width: 640px) {
  .donate-card { grid-template-columns: 1fr; }
  .donate-divider { padding: .5rem 0; }
  .donate-divider::before { left: 0; right: 0; top: 50%; bottom: auto; width: auto; height: 1px; }
}

/* footer */
footer.site .wrap { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
footer.site h4 { margin: 0 0 .5rem; font-size: .95rem; color: var(--fg); }
footer.site ul { list-style: none; padding: 0; margin: 0; }
footer.site li { margin: .25rem 0; }
footer.site .copyright { grid-column: 1 / -1; padding-top: 1rem; border-top: 1px solid var(--border); font-size: .85rem; }

@media (max-width: 640px) {
  .hero h1 { font-size: 1.9rem; }
  nav.primary a { margin-left: .9rem; }
  .lang-switch { margin-left: .9rem; padding-left: .9rem; }
}