.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  gap: 9px;
  border-radius: var(--radius-sm);
  padding: 0 18px;
  border: 1px solid transparent;
  font-size: 0.73rem;
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1;
  text-transform: uppercase;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.45;
  transform: none;
}

.btn-primary {
  background: var(--color-lime);
  color: #071000;
  box-shadow: var(--shadow-lime);
}

.btn-primary:hover {
  background: var(--color-lime-hover);
}

.btn-secondary {
  border-color: var(--color-border);
  background: rgba(6, 10, 11, 0.8);
  color: var(--color-text);
}

.btn-secondary:hover {
  border-color: var(--color-border-strong);
  color: var(--color-lime);
}

.btn-text {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: var(--space-4);
  color: var(--color-lime);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.btn-icon {
  width: 38px;
  min-width: 38px;
  height: 38px;
  padding: 0;
}

.panel,
.card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.035), transparent 42%),
    rgba(9, 14, 15, 0.86);
  box-shadow: var(--shadow-panel);
}

.card {
  padding: var(--space-5);
}

.card::after,
.panel::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 82% 20%, rgba(184, 245, 0, 0.08), transparent 32%);
}

.card > *,
.panel > * {
  position: relative;
  z-index: 1;
}

.icon {
  width: 32px;
  height: 32px;
  color: var(--color-lime);
}

.feature-list {
  display: grid;
  gap: 8px;
  padding: 0;
  margin: var(--space-4) 0 0;
  list-style: none;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  color: var(--color-muted);
  font-size: 0.92rem;
}

.feature-list li::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: 0 0 6px;
  margin-top: 0.65em;
  border-radius: 50%;
  background: var(--color-lime);
}

.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: var(--space-4);
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.service-card {
  min-height: 258px;
  display: grid;
  grid-template-columns: 1fr minmax(130px, 0.8fr);
  gap: var(--space-4);
}

.service-card img {
  align-self: center;
  justify-self: center;
  width: min(100%, 280px);
  height: 220px;
  object-fit: contain;
  object-position: center;
  min-width: 0;
}

.material-card img {
  display: block;
  width: min(82%, 300px);
  height: 180px;
  object-fit: contain;
  object-position: center;
  margin: var(--space-3) auto var(--space-5);
}

.product-card img {
  display: block;
  width: 100%;
  height: 210px;
  object-fit: contain;
  object-position: center;
  margin: 4px 0 var(--space-3);
}

.product-card {
  padding: var(--space-4);
}

.product-card h3 {
  font-size: 1.1rem;
}

.price {
  color: var(--color-text);
  font-weight: 800;
}

.product-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--color-border-neutral);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-border-neutral);
}

.stat {
  min-height: 96px;
  padding: var(--space-4);
  background: rgba(9, 14, 15, 0.9);
}

.stat strong {
  display: block;
  color: var(--color-lime);
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1;
}

.process {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-4);
}

.process-step {
  padding: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.process-step .number {
  color: var(--color-lime);
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
}

.comparison {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-4);
}

.comparison img {
  width: 100%;
  height: 260px;
  object-fit: contain;
  object-position: center;
}

.arrow {
  color: var(--color-lime);
}

.tabs,
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tab,
.filter-button {
  border: 1px solid var(--color-border-neutral);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-muted);
  padding: 10px 13px;
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.tab[aria-selected="true"],
.filter-button.is-active {
  border-color: var(--color-border);
  background: var(--color-lime-soft);
  color: var(--color-lime);
}

.catalog-shell {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: var(--space-5);
}

.catalog-sidebar {
  align-self: start;
  position: sticky;
  top: calc(var(--header-height) + var(--space-4));
}

.search-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.field,
.select,
.textarea {
  width: 100%;
  border: 1px solid var(--color-border-neutral);
  border-radius: var(--radius-sm);
  background: rgba(3, 6, 7, 0.72);
  color: var(--color-text);
  padding: 12px 13px;
  font-size: 0.9rem;
}

.textarea {
  min-height: 150px;
  resize: vertical;
}

.field:focus,
.select:focus,
.textarea:focus {
  border-color: var(--color-border-strong);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.form-field label {
  display: block;
  margin-bottom: 7px;
  color: var(--color-text);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

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

.form-message {
  margin-top: var(--space-3);
  color: var(--color-lime);
  font-weight: 700;
}

.form-message.is-error {
  color: #ffb7a8;
}

.accordion {
  display: grid;
  gap: var(--space-3);
}

.accordion button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  border: 1px solid var(--color-border-neutral);
  border-radius: var(--radius-sm);
  background: rgba(8, 13, 14, 0.82);
  color: var(--color-text);
  padding: 16px 18px;
  font-weight: 800;
  text-align: left;
}

.accordion-panel {
  display: none;
  padding: 0 18px 18px;
}

.accordion button[aria-expanded="true"] + .accordion-panel {
  display: block;
}

.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  padding: var(--space-5);
}

.legal-content {
  display: grid;
  gap: var(--space-5);
  max-width: 880px;
}

.legal-content h2 {
  font-size: 1.9rem;
}

.placeholder-note {
  border-left: 3px solid var(--color-lime);
  padding: 10px 14px;
  background: var(--color-lime-soft);
  color: var(--color-muted);
}