/* TaxIQ Africa — App shell
   Covers: reset, top nav, utility strip, breadcrumb, tool container, footer,
   offline banner, auth modal, skeleton loaders, install prompt.
   Tokens are in tokens.css — import that first. */

/* ── Reset ───────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
body {
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
input, select, textarea { font: inherit; }
input::placeholder { color: var(--muted-2); }

.w { max-width: var(--w); margin: 0 auto; padding: 0 24px; }
.mono { font-family: var(--font-mono); }

/* ── Offline banner ──────────────────────── */
#offline-banner {
  background: var(--panel-2);
  border-bottom: 1px solid var(--line);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .5px;
  color: var(--muted);
  padding: 8px 24px;
}
#offline-banner b { color: var(--accent); }

/* ── Top nav ─────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(17,17,16,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.nav {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--accent);
  color: var(--accent-ink);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .5px;
  font-family: var(--font-body);
}
.brand-name { font-size: 16px; font-weight: 700; display: block; line-height: 1.3; }
.brand-sub {
  display: block;
  font-size: 9px;
  letter-spacing: 1.6px;
  color: var(--muted-2);
  text-transform: uppercase;
  font-family: var(--font-mono);
  line-height: 1.4;
}
.nav-search {
  flex: 1;
  max-width: 520px;
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 9px 14px;
  color: var(--muted-2);
  transition: border-color .15s;
}
.nav-search:focus-within { border-color: var(--accent); }
.nav-search svg { flex-shrink: 0; }
.nav-search input {
  background: none;
  border: 0;
  color: var(--text);
  width: 100%;
  font-size: 14px;
  outline: none;
}
.nav-search kbd {
  font-family: var(--font-mono);
  font-size: 10px;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 2px 6px;
  color: var(--muted-2);
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}
.nav-links a, .nav-links button {
  font-size: 13.5px;
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 8px;
  text-decoration: none;
  transition: color .12s, background .12s;
}
.nav-links a:hover, .nav-links button:hover {
  color: var(--text);
  background: var(--panel-2);
}
.nav-links a.nav-active { color: var(--text); }
.nav-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--panel);
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  cursor: pointer;
  transition: border-color .12s;
}
.nav-avatar:hover { border-color: var(--muted-2); }
.nav-sign-in {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--accent-ink);
  background: var(--accent);
  padding: 9px 16px;
  border-radius: 8px;
  transition: filter .12s;
}
.nav-sign-in:hover { filter: brightness(1.06); }

/* ── Utility strip ───────────────────────── */
.strip {
  border-bottom: 1px solid var(--line-soft);
  background: var(--panel-2);
  overflow: hidden;
}
.strip-in {
  display: flex;
  align-items: stretch;
  overflow-x: auto;
  scrollbar-width: none;
}
.strip-in::-webkit-scrollbar { display: none; }
.strip-cell {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 22px;
  border-right: 1px solid var(--line-soft);
  white-space: nowrap;
  flex-shrink: 0;
}
.strip-cell:last-child { border-right: 0; min-width: 0; }
.strip-label {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--muted-2);
}
.strip-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 20px;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.strip-num small {
  font-size: 10px;
  color: var(--muted-2);
  font-weight: 400;
  letter-spacing: 1px;
  margin-left: 2px;
}
.strip-note { font-size: 13px; color: var(--muted); }
.strip-note b { color: var(--text); font-weight: 600; }
.strip-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 1px;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 3px 7px;
  color: var(--muted-2);
  text-transform: uppercase;
  flex-shrink: 0;
}

/* ── Breadcrumb ──────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .5px;
  color: var(--muted-2);
}
.breadcrumb a {
  color: var(--muted-2);
  text-decoration: none;
  transition: color .12s;
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: var(--line); }
.breadcrumb span:last-child { color: var(--muted); }

/* ── Tool main container ─────────────────── */
.tool-main { padding-bottom: 80px; }
.tool-header {
  padding: 32px 0 24px;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 28px;
}
.tool-eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.tool-eyebrow::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 1px;
  background: var(--accent);
}
.tool-title {
  font-size: clamp(24px, 3.4vw, 36px);
  font-weight: 700;
  letter-spacing: -.4px;
  line-height: 1.15;
  margin-bottom: 6px;
}
.tool-sub {
  font-size: 14.5px;
  color: var(--muted);
  max-width: 560px;
}
.tool-gate {
  margin-top: 12px;
}

/* Gate badges */
.badge {
  display: inline-flex;
  align-items: stretch;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: .8px;
  text-transform: uppercase;
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
}
.badge > span { display: flex; align-items: center; padding: 4px 8px; line-height: 1; }
.b-free > span { border: 1px solid var(--accent); border-radius: 6px; color: var(--accent); }
.b-split > .s1 { border: 1px solid var(--accent); border-right: 0; border-radius: 6px 0 0 6px; color: var(--accent); }
.b-split > .s2 { background: var(--accent); color: var(--accent-ink); font-weight: 700; border-radius: 0 6px 6px 0; }
.b-premium > span { background: var(--accent); color: var(--accent-ink); font-weight: 700; border-radius: 6px; gap: 5px; }
.b-firm > span { border: 1px solid var(--firm); color: var(--firm); border-radius: 6px; gap: 5px; }

/* ── Footer ──────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--line-soft);
  padding: 28px 0 40px;
  margin-top: 48px;
}
.foot {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: var(--muted-2);
}
.foot .mono {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.foot-disclaimer { cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
.foot-disclaimer:hover { color: var(--muted); }

/* ── Auth modal ──────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,.6);
  display: none;
  place-items: center;
  padding: 24px;
  animation: fadeIn .2s ease;
}
.modal-overlay.open { display: grid; }
.modal-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  width: min(420px, 100%);
  animation: slideUp .25s ease;
}
.modal-title { font-size: 20px; font-weight: 700; margin-bottom: 4px; }
.modal-sub { font-size: 13.5px; color: var(--muted); margin-bottom: 22px; }
.modal-field { margin-bottom: 14px; }
.modal-field label {
  display: block;
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: .5px;
  color: var(--muted-2);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.modal-field input {
  width: 100%;
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--text);
  font-size: 15px;
  transition: border-color .15s;
}
.modal-field input:focus { outline: none; border-color: var(--accent); }
.modal-error {
  font-size: 13px;
  color: var(--red);
  margin-bottom: 14px;
  min-height: 18px;
}
.modal-submit {
  width: 100%;
  height: 48px;
  border-radius: 9px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 15px;
  font-weight: 700;
  transition: filter .12s;
}
.modal-submit:hover { filter: brightness(1.06); }
.modal-close-row {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 4px;
}
.modal-x {
  width: 32px;
  height: 32px;
  border-radius: 7px;
  border: 1px solid var(--line);
  color: var(--muted-2);
  display: grid;
  place-items: center;
  transition: color .12s;
}
.modal-x:hover { color: var(--text); }
.modal-switch {
  text-align: center;
  margin-top: 16px;
  font-size: 13px;
  color: var(--muted-2);
}
.modal-switch button {
  color: var(--accent);
  font-size: 13px;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ── Skeleton loaders ────────────────────── */
@keyframes skel { 0%, 100% { opacity: .5; } 50% { opacity: 1; } }
.skel {
  background: var(--panel-2);
  border-radius: 6px;
  animation: skel 1.6s ease infinite;
}
.skel-card {
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.skel-line { height: 12px; }
.skel-line.w-full { width: 100%; }
.skel-line.w-3q { width: 75%; }
.skel-line.w-half { width: 50%; }
.skel-line.w-1q { width: 30%; }

/* ── Install prompt ──────────────────────── */
#install-prompt {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  width: min(480px, calc(100vw - 32px));
  box-shadow: 0 8px 32px rgba(0,0,0,.5);
  animation: slideUp .3s ease;
}
#install-prompt[hidden] { display: none; }
.install-icon {
  width: 40px;
  height: 40px;
  border-radius: 9px;
  background: var(--accent);
  color: var(--accent-ink);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 13px;
  flex-shrink: 0;
}
.install-text { flex: 1; }
.install-text strong { display: block; font-size: 14px; font-weight: 600; }
.install-text span { font-size: 12.5px; color: var(--muted); }
.install-actions { display: flex; gap: 8px; flex-shrink: 0; }
.install-ok {
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 13px;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: 7px;
  transition: filter .12s;
}
.install-ok:hover { filter: brightness(1.06); }
.install-dismiss {
  font-size: 13px;
  color: var(--muted-2);
  padding: 8px 12px;
  border-radius: 7px;
  transition: color .12s;
}
.install-dismiss:hover { color: var(--muted); }

/* ── Animations ──────────────────────────── */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { transform: translateY(16px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ── Responsive ──────────────────────────── */
@media (max-width: 900px) {
  .nav-search { display: none; }
  .nav-links a:not(.keep) { display: none; }
}
@media (max-width: 600px) {
  .strip-cell { padding: 10px 14px; }
  .tool-header { padding: 20px 0 16px; }
  .tool-title { font-size: 24px; }
}