/* Done by Default - components (Industrial Spec Sheet) */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  min-height: 48px;
  padding: 0.8rem 1.6rem;
  font-family: var(--font-accent);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-none);
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

.btn--primary {
  background: var(--color-accent-cta);
  color: #ffffff;
  border-color: var(--color-accent-cta);
}

.btn--primary:hover {
  background: var(--color-accent-cta-hover);
  border-color: var(--color-accent-cta-hover);
  color: #ffffff;
  transform: translateY(-1px);
}

.btn--secondary {
  background: transparent;
  color: var(--color-secondary);
  border-color: var(--color-secondary);
}

.btn--secondary:hover {
  background: var(--color-secondary);
  color: var(--color-text-invert);
  transform: translateY(-1px);
}

.btn--onDark {
  background: transparent;
  color: var(--color-text-invert);
  border-color: var(--color-border-dark);
}

.btn--onDark:hover {
  background: var(--color-text-invert);
  color: var(--color-dark);
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: 64px;
}

.nav__brand {
  font-family: var(--font-accent);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
}

.nav__brand::before {
  content: "";
  width: 12px;
  height: 12px;
  border: 1px solid var(--color-accent);
  background:
    linear-gradient(45deg, transparent 45%, var(--color-accent) 45%, var(--color-accent) 55%, transparent 55%);
}

.nav__list {
  display: flex;
  align-items: center;
  gap: clamp(0.6rem, 1.4vw, 1.4rem);
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav__link {
  font-family: var(--font-accent);
  font-weight: 500;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 0.4rem 0;
}

.nav__link:hover {
  color: var(--color-text);
}

.nav__cta {
  display: none;
}

.nav__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 1.2rem;
  cursor: pointer;
}

@media (min-width: 960px) {
  .nav__cta {
    display: inline-flex;
  }
  .nav__toggle {
    display: none;
  }
}

@media (max-width: 959px) {
  .nav__list {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 64px;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-sm) var(--space-md) var(--space-md);
  }
  .nav__list.is-open {
    display: flex;
  }
  .nav__list li {
    width: 100%;
    border-top: 1px solid var(--color-border);
  }
  .nav__link {
    display: block;
    width: 100%;
    padding: 0.85rem 0;
    font-size: var(--text-sm);
  }
}

/* ---------- Hero ---------- */
.hero {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  position: relative;
  overflow: hidden;
}

.hero__inner {
  padding-block: var(--space-xl);
}

.hero__lead {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  align-items: end;
  margin-bottom: var(--space-xl);
}

@media (min-width: 900px) {
  .hero__lead {
    grid-template-columns: 1.3fr 1fr;
    gap: var(--space-2xl);
  }
}

.hero__title {
  font-size: var(--text-hero);
  margin-block: 0.4em 0;
  max-width: 15ch;
}

.hero__sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 46ch;
  margin-bottom: var(--space-lg);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* ---------- Blueprint diagram ---------- */
.blueprint {
  background: #eef1f4;
  border: 1px solid var(--color-secondary);
  position: relative;
  padding: 10px;
}

.blueprint__frame {
  border: 1px solid rgba(30, 58, 95, 0.35);
  position: relative;
}

.blueprint svg {
  width: 100%;
  height: auto;
  display: block;
}

/* Mobile-first: show the stacked HTML diagram, hide the wide SVG.
   The SVG returns at >=641px (see min-width rule below). */
.blueprint {
  display: none;
}

.blueprint-stack {
  display: block;
  background: #eef1f4;
  border: 1px solid var(--color-secondary);
  padding: var(--space-md);
}

.bpstack__cap,
.bpstack__foot {
  font-family: var(--font-accent);
  font-weight: 500;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-secondary);
  text-align: center;
}

.bpstack__cap {
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid rgba(30, 58, 95, 0.35);
  margin-bottom: var(--space-md);
}

.bpstack__foot {
  padding-top: var(--space-sm);
  border-top: 1px solid rgba(30, 58, 95, 0.35);
  margin-top: var(--space-md);
}

.bpstack__mod {
  background: rgba(244, 242, 236, 0.82);
  border: 1.5px solid var(--color-secondary);
  padding: var(--space-md);
}

.bpstack__mod--accent {
  border-color: var(--color-accent);
}

.bpstack__part {
  font-family: var(--font-accent);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-secondary);
}

.bpstack__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-xl);
  color: var(--color-text);
  margin: 0.1rem 0 var(--space-sm);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
}

.bpstack__specs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem 1rem;
}

.bpstack__specs li {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text);
  display: flex;
  gap: 0.5em;
}

.bpstack__specs li::before {
  content: "+";
  color: var(--color-secondary);
  font-weight: 700;
}

.bpstack__arrow {
  width: 0;
  height: 0;
  margin: 0.55rem auto;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 11px solid var(--color-accent);
}

@media (min-width: 641px) {
  .blueprint {
    display: block;
  }
  .blueprint-stack {
    display: none;
  }
}

/* Diagram line styling (SVG classes) */
.bp-line {
  stroke: var(--color-secondary);
  fill: none;
}
.bp-line--thin {
  stroke-width: 1;
}
.bp-line--construction {
  stroke: rgba(30, 58, 95, 0.5);
  stroke-width: 1;
  stroke-dasharray: 4 4;
}
.bp-module {
  fill: rgba(244, 242, 236, 0.72);
  stroke: var(--color-secondary);
  stroke-width: 1.5;
}
.bp-module--accent {
  stroke: var(--color-accent);
}
.bp-fill-accent {
  fill: var(--color-accent);
}
.bp-fill-blue {
  fill: var(--color-secondary);
}
.bp-part {
  font-family: var(--font-accent);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.04em;
  fill: var(--color-secondary);
}
.bp-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  fill: var(--color-text);
}
.bp-spec {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 12.5px;
  fill: var(--color-text);
}
.bp-dim {
  font-family: var(--font-accent);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.1em;
  fill: var(--color-secondary);
}
.bp-tblock {
  font-family: var(--font-accent);
  font-weight: 500;
  font-size: 10.5px;
  letter-spacing: 0.06em;
  fill: var(--color-secondary);
}
.bp-tblock--strong {
  font-weight: 700;
  fill: var(--color-text);
}

/* Draw-in animation for leader / dimension lines */
.bp-draw {
  stroke-dasharray: var(--len, 600);
  stroke-dashoffset: var(--len, 600);
  animation: bpDraw 1100ms var(--ease-out) forwards;
  animation-delay: var(--delay, 0ms);
}

@keyframes bpDraw {
  to {
    stroke-dashoffset: 0;
  }
}

.bp-fade {
  opacity: 0;
  animation: bpFade 500ms var(--ease-out) forwards;
  animation-delay: var(--delay, 700ms);
}

@keyframes bpFade {
  to {
    opacity: 1;
  }
}

/* ---------- Proof strip ---------- */
.proof {
  background: var(--color-dark);
  color: var(--color-text-invert);
  border-bottom: 1px solid var(--color-border-dark);
}

.proof__head {
  font-family: var(--font-accent);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted-invert);
  margin-bottom: var(--space-lg);
}

.proof__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--color-border-dark);
}

@media (min-width: 720px) {
  .proof__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.proof__item {
  padding: var(--space-lg) var(--space-md);
  border-bottom: 1px solid var(--color-border-dark);
}

@media (min-width: 720px) {
  .proof__item {
    border-bottom: none;
    border-left: 1px solid var(--color-border-dark);
  }
  .proof__item:first-child {
    border-left: none;
    padding-left: 0;
  }
}

.proof__num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-3xl);
  line-height: 1;
  color: var(--color-text-invert);
  display: block;
}

.proof__num span {
  color: var(--color-accent-tint);
}

.proof__label {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-muted-invert);
  margin-top: var(--space-sm);
}

.proof__note {
  font-family: var(--font-accent);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-muted-invert);
  margin-top: var(--space-lg);
}

/* ---------- Section header ---------- */
.section-head {
  max-width: 62ch;
  margin-bottom: var(--space-xl);
}

.section-head h2 {
  margin-top: var(--space-sm);
}

.section-head p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-top: var(--space-md);
}

/* ---------- Spec sheet (What we build) ---------- */
.specsheet {
  border-top: 1px solid var(--color-border);
}

.spec-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  padding-block: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

@media (min-width: 860px) {
  .spec-row {
    grid-template-columns: 0.28fr 0.42fr 0.3fr;
    gap: var(--space-lg);
    align-items: start;
  }
  .spec-row--flip {
    grid-template-columns: 0.3fr 0.42fr 0.28fr;
  }
}

.spec-row__id {
  font-family: var(--font-accent);
  font-weight: 500;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-secondary);
}

.spec-row__id b {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-2xl);
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin-top: var(--space-xs);
}

.spec-row__desc {
  color: var(--color-text);
  font-size: var(--text-base);
}

.spec-row__tag {
  display: inline-block;
  margin-top: var(--space-sm);
  font-family: var(--font-accent);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #ffffff;
  background: var(--color-accent-cta);
  padding: 0.2rem 0.6rem;
}

.spec-row__tag--core {
  background: var(--color-secondary);
}

.spec-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--color-border);
}

.spec-list li {
  font-family: var(--font-accent);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  gap: 0.6em;
}

.spec-list li::before {
  content: "+";
  color: var(--color-secondary);
  font-weight: 700;
}

/* ---------- Parts catalog table ---------- */
.catalog {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
}

.catalog__table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}

.catalog__wrap {
  overflow-x: auto;
}

.catalog__table thead th {
  font-family: var(--font-accent);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: left;
  color: var(--color-text-invert);
  background: var(--color-dark);
  padding: 0.85rem 1rem;
  white-space: nowrap;
}

.catalog__table td {
  padding: 1.1rem 1rem;
  border-top: 1px solid var(--color-border);
  vertical-align: top;
  font-size: var(--text-sm);
  color: var(--color-text);
}

.catalog__part {
  font-family: var(--font-accent);
  font-weight: 500;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-secondary);
  white-space: nowrap;
}

.catalog__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-text);
  display: block;
  margin-top: 0.2rem;
}

.catalog__price {
  font-family: var(--font-accent);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-text);
  white-space: nowrap;
}

.catalog__price small {
  display: block;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

.catalog__status {
  font-family: var(--font-accent);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-secondary);
}

/* Collapse the 5-column table into stacked cards on small screens */
@media (max-width: 600px) {
  .catalog__table {
    border: none;
  }
  .catalog__table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
  .catalog__table tr {
    display: block;
    border: 1px solid var(--color-border);
    margin-bottom: var(--space-md);
    background: var(--color-bg);
  }
  .catalog__table td {
    display: block;
    padding: 0.6rem var(--space-md);
    border-top: 1px solid var(--color-border);
  }
  .catalog__table tr td:first-child {
    border-top: none;
    background: var(--color-dark);
    color: var(--color-text-invert);
  }
  .catalog__table td::before {
    content: attr(data-label);
    display: block;
    font-family: var(--font-accent);
    font-weight: 700;
    font-size: var(--text-xs);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-secondary);
    margin-bottom: 0.25rem;
  }
  .catalog__table tr td:first-child::before {
    color: var(--color-muted-invert);
  }
  .catalog__part {
    color: var(--color-text-invert);
  }
  .catalog__price small {
    display: inline;
  }
}

/* ---------- How it works ---------- */
.assembly {
  border-top: 1px solid var(--color-border);
}

.assembly__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  counter-reset: step;
  border: 1px solid var(--color-border);
}

@media (min-width: 820px) {
  .assembly__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.assembly__step {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

@media (min-width: 820px) {
  .assembly__step {
    border-bottom: none;
    border-left: 1px solid var(--color-border);
  }
  .assembly__step:first-child {
    border-left: none;
  }
  /* connector arrow between steps */
  .assembly__step:not(:first-child)::before {
    content: "";
    position: absolute;
    left: -7px;
    top: calc(var(--space-lg) + 0.4rem);
    width: 13px;
    height: 13px;
    border-top: 1.5px solid var(--color-accent);
    border-right: 1.5px solid var(--color-accent);
    transform: rotate(45deg);
    background: var(--color-bg);
  }
}

.assembly__step h3 {
  margin-top: var(--space-sm);
}

.assembly__step p {
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
}

.assembly__no {
  font-family: var(--font-accent);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-secondary);
}

/* ---------- Split teasers (portfolio + pricing) ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--color-border);
}

@media (min-width: 820px) {
  .split {
    grid-template-columns: 1fr 1fr;
  }
}

.split__cell {
  padding: var(--space-xl) var(--space-md);
}

@media (min-width: 820px) {
  .split__cell + .split__cell {
    border-left: 1px solid var(--color-border);
  }
}

.split__cell h2 {
  font-size: var(--text-2xl);
  margin-block: var(--space-sm) var(--space-md);
}

.split__cell p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  max-width: 42ch;
}

.pricelist {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.pricelist li {
  display: flex;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-accent);
  font-size: var(--text-sm);
}

.pricelist li span:last-child {
  font-weight: 700;
  white-space: nowrap;
}

/* ---------- Closing CTA ---------- */
.closer {
  background: var(--color-dark);
  color: var(--color-text-invert);
  text-align: left;
}

.closer h2 {
  color: var(--color-text-invert);
  font-size: var(--text-4xl);
  max-width: 18ch;
}

.closer p {
  color: var(--color-muted-invert);
  font-size: var(--text-lg);
  max-width: 48ch;
  margin-block: var(--space-md) var(--space-lg);
}

.closer .kicker {
  color: var(--color-accent-tint);
}

.closer__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-xl) var(--space-lg);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 720px) {
  .footer__grid {
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
  }
}

.footer__brand p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  max-width: 34ch;
  margin-top: var(--space-sm);
}

.footer__mark {
  font-family: var(--font-accent);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text);
}

.footer-heading {
  font-family: var(--font-accent);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-secondary);
  margin-bottom: var(--space-sm);
}

.footer__links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer__links li {
  padding: 0.3rem 0;
}

.footer__links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
}

.footer__links a:hover {
  color: var(--color-text);
}

.footer__bottom {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-sm);
  font-family: var(--font-accent);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .bp-draw {
    stroke-dashoffset: 0 !important;
  }
  .bp-fade {
    opacity: 1 !important;
  }
}