/* Shared navigation, product pages, calculator, and placeholder layouts. */

.site-header--nav {
  align-items: center;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 12px;
  border-radius: 10px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 700;
  transition: 160ms ease;
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--text);
  background: rgba(255, 255, 255, 0.055);
}

.nav-badge {
  padding: 3px 6px;
  border-radius: 999px;
  color: var(--accent);
  background: rgba(76, 201, 240, 0.09);
  border: 1px solid rgba(76, 201, 240, 0.16);
  font-size: 0.62rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.mobile-menu {
  display: none;
  position: relative;
}

.mobile-menu summary {
  list-style: none;
  cursor: pointer;
  color: var(--muted);
  font-weight: 800;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  border-radius: 11px;
  padding: 9px 11px;
}

.mobile-menu summary::-webkit-details-marker {
  display: none;
}

.mobile-menu-panel {
  position: absolute;
  z-index: 20;
  right: 0;
  top: 46px;
  width: 210px;
  padding: 8px;
  border-radius: 14px;
  background: #0d1b2d;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.mobile-menu-panel .nav-link {
  width: 100%;
  justify-content: space-between;
}

.product-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 8px 0 80px;
}

.product-card {
  position: relative;
  min-height: 190px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 22px;
  padding: 24px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: linear-gradient(145deg, rgba(18, 36, 59, 0.9), rgba(10, 23, 39, 0.82));
  text-decoration: none;
  overflow: hidden;
}

.product-card:hover {
  border-color: rgba(76, 201, 240, 0.28);
}

.product-card::after {
  content: "";
  position: absolute;
  inset: auto -45px -65px auto;
  width: 145px;
  height: 145px;
  border-radius: 50%;
  background: rgba(76, 201, 240, 0.05);
}

.product-card strong {
  display: block;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.product-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.product-card .product-icon {
  color: var(--accent);
  font-weight: 900;
  letter-spacing: 0.12em;
  font-size: 0.76rem;
}

.product-card--live {
  border-color: rgba(94, 227, 162, 0.18);
}

.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  width: fit-content;
  color: var(--success);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.live-badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 5px rgba(94, 227, 162, 0.08);
}

.tool-card-link {
  color: inherit;
  text-decoration: none;
}

.tool-card-link:hover .tool-card {
  border-color: rgba(76, 201, 240, 0.28);
  transform: translateY(-2px);
}

.tool-card {
  transition: 160ms ease;
}

.page-hero {
  padding: 68px 0 38px;
  max-width: 920px;
}

.page-hero h1 {
  margin: 14px 0 18px;
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.page-hero h1 span {
  color: var(--accent-2);
}

.page-hero p {
  margin: 0;
  max-width: 780px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.72;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #7f91a6;
  font-size: 0.82rem;
  margin-bottom: 18px;
}

.breadcrumb a {
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--accent);
}

.calculator-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(350px, 0.95fr);
  gap: 20px;
  align-items: start;
  padding: 6px 0 54px;
}

.calculator-card,
.result-card,
.info-card,
.placeholder-card {
  border: 1px solid var(--border);
  background: linear-gradient(145deg, rgba(18, 36, 59, 0.94), rgba(10, 23, 39, 0.9));
  border-radius: 22px;
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.18);
}

.calculator-card {
  padding: 26px;
}

.mode-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
  padding: 5px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--border);
  margin-bottom: 26px;
}

.mode-button {
  min-height: 44px;
  border: 0;
  border-radius: 10px;
  cursor: pointer;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 800;
}

.mode-button.is-active {
  background: rgba(76, 201, 240, 0.12);
  color: var(--text);
  box-shadow: inset 0 0 0 1px rgba(76, 201, 240, 0.16);
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.field label {
  color: #d8e2ee;
  font-size: 0.84rem;
  font-weight: 800;
}

.field input {
  width: 100%;
  min-height: 50px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  background: rgba(4, 14, 26, 0.6);
  color: var(--text);
  padding: 0 14px;
  font: inherit;
  font-size: 1rem;
  outline: none;
}

.field input:focus {
  border-color: rgba(76, 201, 240, 0.55);
  box-shadow: 0 0 0 3px rgba(76, 201, 240, 0.08);
}

.field-help {
  color: #71859c;
  font-size: 0.76rem;
  line-height: 1.5;
}

.quick-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 9px;
}

.quick-chip {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.025);
  color: var(--muted);
  border-radius: 999px;
  padding: 7px 10px;
  cursor: pointer;
  font: inherit;
  font-size: 0.74rem;
  font-weight: 800;
}

.quick-chip:hover {
  color: var(--text);
  border-color: rgba(76, 201, 240, 0.28);
}

.calculator-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
}

.action-button {
  min-height: 48px;
  border: 0;
  border-radius: 12px;
  cursor: pointer;
  padding: 0 18px;
  font: inherit;
  font-weight: 900;
}

.action-button--primary {
  flex: 1;
  background: var(--accent);
  color: #042033;
}

.action-button--secondary {
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--border);
}

.result-card {
  padding: 28px;
  position: sticky;
  top: 18px;
}

.result-label {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.result-primary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 10px 0 24px;
}

.result-primary strong {
  font-size: clamp(3.3rem, 7vw, 5.2rem);
  letter-spacing: -0.06em;
  line-height: 1;
}

.result-primary span {
  color: var(--accent);
  font-weight: 900;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.result-item {
  padding: 15px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.028);
  border: 1px solid rgba(255, 255, 255, 0.055);
}

.result-item span {
  display: block;
  color: #7f91a6;
  font-size: 0.72rem;
  margin-bottom: 7px;
}

.result-item strong {
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.result-note {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-radius: 13px;
  color: var(--muted);
  background: rgba(76, 201, 240, 0.045);
  border: 1px solid rgba(76, 201, 240, 0.1);
  line-height: 1.55;
  font-size: 0.82rem;
}

.result-note.is-warning {
  color: #ffd9a0;
  background: rgba(255, 177, 66, 0.055);
  border-color: rgba(255, 177, 66, 0.14);
}

.explain-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding: 8px 0 76px;
}

.info-card {
  padding: 22px;
}

.info-card strong {
  display: block;
  margin-bottom: 9px;
  font-size: 1.02rem;
}

.info-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.88rem;
}

.info-card code {
  display: block;
  margin-top: 14px;
  color: #c7f4ff;
  white-space: normal;
  font-size: 0.78rem;
}

.placeholder-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 8px 0 72px;
}

.placeholder-card {
  min-height: 235px;
  padding: 25px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.placeholder-card h2 {
  margin: 12px 0 10px;
  font-size: 1.55rem;
  letter-spacing: -0.035em;
}

.placeholder-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.62;
}

.placeholder-status {
  width: fit-content;
  padding: 7px 9px;
  border-radius: 999px;
  border: 1px solid rgba(76, 201, 240, 0.15);
  color: var(--accent);
  background: rgba(76, 201, 240, 0.055);
  font-size: 0.7rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.mini-disclaimer {
  margin: -34px 0 62px;
  color: #71859c;
  font-size: 0.78rem;
  line-height: 1.6;
}

.source-link {
  color: var(--accent);
  text-decoration: none;
}

.source-link:hover {
  text-decoration: underline;
}

@media (max-width: 920px) {
  .desktop-nav {
    display: none;
  }

  .mobile-menu {
    display: block;
  }

  .calculator-layout {
    grid-template-columns: 1fr;
  }

  .result-card {
    position: static;
  }

  .product-strip,
  .explain-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .header-actions .status-pill {
    display: none;
  }

  .page-hero {
    padding: 48px 0 28px;
  }

  .field-grid,
  .result-grid,
  .placeholder-grid {
    grid-template-columns: 1fr;
  }

  .calculator-card,
  .result-card {
    padding: 20px;
  }

  .calculator-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .action-button {
    width: 100%;
  }

  .product-strip {
    margin-bottom: 58px;
  }
}