:root {
  --upgrade-accent: #6366f1;
  --upgrade-surface: rgba(15, 23, 42, .96);
  --upgrade-border: rgba(148, 163, 184, .28);
  --upgrade-text: #f8fafc;
  --upgrade-muted: #cbd5e1;
}

/* Prevent wide calculator grids from causing document-level horizontal overflow */
.calc-page { overflow-x: clip; }

.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 10050;
  padding: .7rem 1rem;
  border-radius: .5rem;
  background: #fff;
  color: #111827;
  font-weight: 700;
}
.skip-link:focus { top: 1rem; }

.site-utility-bar {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 9000;
  display: flex;
  gap: .45rem;
  padding: .45rem;
  border: 1px solid var(--upgrade-border);
  border-radius: .85rem;
  background: var(--upgrade-surface);
  box-shadow: 0 14px 35px rgba(2, 6, 23, .3);
  backdrop-filter: blur(14px);
}
.site-utility-bar button,
.site-action-bar button,
.privacy-actions button {
  min-height: 42px;
  border: 1px solid var(--upgrade-border);
  border-radius: .6rem;
  background: rgba(255, 255, 255, .08);
  color: var(--upgrade-text);
  padding: .55rem .75rem;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}
.site-utility-bar button:hover,
.site-utility-bar button:focus-visible,
.site-action-bar button:hover,
.site-action-bar button:focus-visible { border-color: var(--upgrade-accent); }

.site-action-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  max-width: 1100px;
  margin: 1rem auto 1.5rem;
  padding: .8rem;
  border: 1px solid var(--upgrade-border);
  border-radius: .85rem;
  background: rgba(15, 23, 42, .68);
}
.site-action-bar button[aria-pressed="true"] { background: var(--upgrade-accent); }

.site-search-dialog,
.privacy-dialog {
  width: min(680px, calc(100vw - 2rem));
  max-height: min(82vh, 760px);
  border: 1px solid var(--upgrade-border);
  border-radius: 1rem;
  background: #0f172a;
  color: var(--upgrade-text);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .5);
}
.site-search-dialog::backdrop,
.privacy-dialog::backdrop { background: rgba(2, 6, 23, .72); backdrop-filter: blur(5px); }
.dialog-inner { padding: 1.15rem; }
.dialog-heading { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.dialog-heading h2 { margin: 0; font-size: 1.35rem; color: var(--upgrade-text); }
.dialog-close { border: 0; background: transparent; color: var(--upgrade-text); font-size: 1.5rem; cursor: pointer; }
.site-search-input {
  width: 100%;
  margin: 1rem 0;
  padding: .85rem 1rem;
  border: 1px solid var(--upgrade-border);
  border-radius: .7rem;
  background: #020617;
  color: #fff;
  font: inherit;
}
.search-results { display: grid; gap: .55rem; overflow: auto; max-height: 54vh; }
.search-result {
  display: block;
  padding: .8rem;
  border: 1px solid var(--upgrade-border);
  border-radius: .7rem;
  color: var(--upgrade-text);
  text-decoration: none;
}
.search-result:hover, .search-result:focus-visible { border-color: var(--upgrade-accent); }
.search-result small { display: block; margin-top: .3rem; color: var(--upgrade-muted); }
.search-empty { color: var(--upgrade-muted); }

.privacy-dialog p,
.privacy-dialog label { color: var(--upgrade-muted); }
.privacy-choice {
  display: flex;
  align-items: flex-start;
  gap: .7rem;
  padding: .8rem;
  margin: .7rem 0;
  border: 1px solid var(--upgrade-border);
  border-radius: .7rem;
}
.privacy-choice input { margin-top: .25rem; inline-size: 1.1rem; block-size: 1.1rem; }
.privacy-actions { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1rem; }
.privacy-actions .primary { background: var(--upgrade-accent); border-color: var(--upgrade-accent); }
.privacy-link { color: #a5b4fc; }

.consent-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9500;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: .85rem 1.5rem;
  background: var(--upgrade-surface);
  border-top: 1px solid var(--upgrade-border);
  box-shadow: 0 -6px 24px rgba(2, 6, 23, .35);
  backdrop-filter: blur(14px);
  color: var(--upgrade-muted);
  font-size: .88rem;
}
.consent-banner a { color: #a5b4fc; }
.consent-banner button {
  flex-shrink: 0;
  min-height: 36px;
  border: 1px solid var(--upgrade-accent);
  border-radius: .5rem;
  background: var(--upgrade-accent);
  color: #fff;
  padding: .45rem 1.1rem;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
  white-space: nowrap;
}
.consent-banner button:hover { opacity: .9; }

@media (max-width: 680px) {
  .consent-banner { flex-direction: column; gap: .6rem; text-align: center; padding: .75rem 1rem; font-size: .82rem; }
}

.ad-slot { display: none; max-width: 1100px; margin: 1.5rem auto; text-align: center; overflow: hidden; }
.ad-slot.is-active { display: block; }
.ad-label { display: block; margin-bottom: .4rem; color: #94a3b8; font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
.ad-mount { min-height: 1px; }

.upgrade-footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: .9rem;
  padding: .75rem 1rem 1.25rem;
  font-size: .85rem;
}
.upgrade-footer-links a,
.upgrade-footer-links button { color: inherit; opacity: .8; }
.upgrade-footer-links button { border: 0; background: none; padding: 0; font: inherit; text-decoration: underline; cursor: pointer; }

.toast-message {
  position: fixed;
  left: 50%;
  bottom: 5.5rem;
  z-index: 10020;
  transform: translateX(-50%);
  padding: .7rem 1rem;
  border-radius: .65rem;
  background: #111827;
  color: #fff;
  box-shadow: 0 12px 30px rgba(0,0,0,.32);
}

.upgrade-policy { max-width: 820px; margin: 3rem auto; padding: 1rem; line-height: 1.75; }
.upgrade-policy h1, .upgrade-policy h2 { line-height: 1.25; }
.upgrade-policy-nav { padding: 1rem; }
.upgrade-policy-nav a { color: inherit; }

@media (max-width: 680px) {
  .site-utility-bar { right: .55rem; bottom: .55rem; }
  .site-utility-bar button { padding: .5rem .62rem; font-size: .82rem; }
  .site-action-bar { margin-inline: .75rem; }
}

@media print {
  .site-utility-bar, .site-action-bar, .privacy-dialog, .site-search-dialog,
  .ad-slot, .upgrade-footer-links, .consent-banner { display: none !important; }
  body { background: #fff !important; color: #111 !important; }
}