:root {
  --aqp-charcoal: #263238;
  --aqp-charcoal-light: #37474f;
  --aqp-terracotta: #bf360c;
  --aqp-terracotta-light: #d84315;
  --aqp-warm: #efebe9;
  --aqp-warm-mid: #d7ccc8;
  --aqp-white: #fafafa;
  --aqp-text: #37474f;
  --aqp-text-light: #607d8b;
  --aqp-font-body: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  --aqp-font-heading: Georgia, 'Times New Roman', serif;
  --aqp-max-width: 1140px;
  --aqp-gutter: 2rem;
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--aqp-font-body);
  color: var(--aqp-text);
  background: var(--aqp-white);
  line-height: 1.75;
  overflow-x: hidden;
}

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--aqp-terracotta);
  text-decoration: none;
  transition: color .25s ease;
}

a:hover {
  color: var(--aqp-terracotta-light);
}

/* ─── LAYOUT ─── */

.aqp-container {
  max-width: var(--aqp-max-width);
  margin: 0 auto;
  padding: 0 var(--aqp-gutter);
}

.aqp-grid {
  display: grid;
  gap: var(--aqp-gutter);
}

.aqp-grid--2 {
  grid-template-columns: 1fr 1fr;
}

.aqp-grid--3 {
  grid-template-columns: 1fr 1fr 1fr;
}

/* ─── HEADER / NAV ─── */

.aqp-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(38, 50, 56, .97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(191, 54, 12, .2);
}

.aqp-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--aqp-max-width);
  margin: 0 auto;
  padding: .875rem var(--aqp-gutter);
}

.aqp-logo {
  font-family: var(--aqp-font-heading);
  font-size: 1.35rem;
  color: var(--aqp-white);
  letter-spacing: .04em;
  text-decoration: none;
}

.aqp-logo span {
  color: var(--aqp-terracotta);
}

.aqp-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.aqp-nav a {
  color: var(--aqp-warm-mid);
  font-size: .8125rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  text-decoration: none;
  transition: color .25s ease;
}

.aqp-nav a:hover,
.aqp-nav a[aria-current="page"] {
  color: var(--aqp-terracotta);
}

.aqp-nav__lang {
  font-size: .75rem;
  padding: .25rem .6rem;
  border: 1px solid var(--aqp-terracotta);
  border-radius: 2px;
  color: var(--aqp-terracotta);
}

.aqp-nav__lang:hover {
  background: var(--aqp-terracotta);
  color: var(--aqp-white);
}

/* ARCHITECT'S DRAFTING LINE — Language Switcher */
.aqp-lang-line {
  display: inline-flex;
  align-items: center;
  gap: 0;
  position: relative;
}
.aqp-lang-line::before,
.aqp-lang-line::after {
  content: '';
  display: block;
  width: 16px;
  height: 1px;
  background: var(--aqp-charcoal-light);
  opacity: 0.35;
}
.aqp-lang-line__link {
  font-family: var(--aqp-font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--aqp-text-light);
  padding: 0.2rem 0.45rem;
  transition: color 0.2s;
}
.aqp-lang-line__link:hover {
  color: var(--aqp-terracotta);
}
.aqp-lang-line__link--active {
  color: var(--aqp-charcoal);
  font-weight: 700;
}
.aqp-lang-line__dot {
  display: block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--aqp-terracotta);
  flex-shrink: 0;
}

.aqp-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: .5rem;
}

.aqp-menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--aqp-warm);
  margin: 5px 0;
  transition: transform .3s ease, opacity .3s ease;
}

/* ─── HERO ─── */

.aqp-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--aqp-charcoal);
  position: relative;
  overflow: hidden;
}

.aqp-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(38,50,56,.95) 0%, rgba(38,50,56,.7) 50%, rgba(191,54,12,.15) 100%);
  z-index: 1;
}

.aqp-hero__content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding: 8rem var(--aqp-gutter) 4rem;
}

.aqp-hero__subtitle {
  font-size: .8125rem;
  text-transform: uppercase;
  letter-spacing: .2em;
  color: var(--aqp-terracotta);
  margin-bottom: 1.5rem;
}

.aqp-hero__title {
  font-family: var(--aqp-font-heading);
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  color: var(--aqp-white);
  line-height: 1.15;
  margin-bottom: 1.5rem;
  font-weight: 400;
}

.aqp-hero__lead {
  font-size: 1.125rem;
  color: var(--aqp-warm-mid);
  line-height: 1.8;
  max-width: 560px;
}

.aqp-hero__line {
  width: 60px;
  height: 2px;
  background: var(--aqp-terracotta);
  margin-top: 2.5rem;
}

/* ─── BLUEPRINT SVG BACKGROUND ─── */

.aqp-hero__blueprint {
  position: absolute;
  right: -5%;
  bottom: -10%;
  width: 55%;
  max-width: 640px;
  opacity: .06;
  z-index: 0;
}

/* ─── SECTIONS ─── */

.aqp-section {
  padding: 6rem 0;
}

.aqp-section--warm {
  background: var(--aqp-warm);
}

.aqp-section--charcoal {
  background: var(--aqp-charcoal);
  color: var(--aqp-warm);
}

.aqp-section--charcoal .aqp-section__title {
  color: var(--aqp-white);
}

.aqp-section--charcoal .aqp-section__subtitle {
  color: var(--aqp-terracotta);
}

.aqp-section__subtitle {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .2em;
  color: var(--aqp-terracotta);
  margin-bottom: .75rem;
}

.aqp-section__title {
  font-family: var(--aqp-font-heading);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  color: var(--aqp-charcoal);
  line-height: 1.2;
  margin-bottom: 1.5rem;
  font-weight: 400;
}

.aqp-section__lead {
  font-size: 1.0625rem;
  color: var(--aqp-text-light);
  max-width: 640px;
  margin-bottom: 3rem;
  line-height: 1.8;
}

.aqp-section--charcoal .aqp-section__lead {
  color: var(--aqp-warm-mid);
}

/* ─── ARTICLE / CONTENT ─── */

.aqp-article {
  padding-top: 7rem;
  padding-bottom: 4rem;
}

.aqp-article__header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--aqp-warm-mid);
}

.aqp-article__breadcrumb {
  font-size: .8125rem;
  color: var(--aqp-text-light);
  margin-bottom: 1.5rem;
}

.aqp-article__breadcrumb a {
  color: var(--aqp-text-light);
}

.aqp-article__breadcrumb a:hover {
  color: var(--aqp-terracotta);
}

.aqp-article__title {
  font-family: var(--aqp-font-heading);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  color: var(--aqp-charcoal);
  line-height: 1.2;
  font-weight: 400;
  margin-bottom: .75rem;
}

.aqp-article__meta {
  font-size: .8125rem;
  color: var(--aqp-text-light);
}

.aqp-prose {
  max-width: 720px;
}

.aqp-prose h2 {
  font-family: var(--aqp-font-heading);
  font-size: 1.625rem;
  color: var(--aqp-charcoal);
  margin: 3rem 0 1rem;
  font-weight: 400;
}

.aqp-prose h3 {
  font-family: var(--aqp-font-heading);
  font-size: 1.25rem;
  color: var(--aqp-charcoal-light);
  margin: 2.5rem 0 .75rem;
  font-weight: 400;
}

.aqp-prose p {
  margin-bottom: 1.25rem;
  color: var(--aqp-text);
}

.aqp-prose ul,
.aqp-prose ol {
  margin: 1rem 0 1.5rem 1.5rem;
}

.aqp-prose li {
  margin-bottom: .5rem;
}

.aqp-prose blockquote {
  border-left: 3px solid var(--aqp-terracotta);
  padding: 1rem 1.5rem;
  margin: 2rem 0;
  background: var(--aqp-warm);
  font-style: italic;
  color: var(--aqp-text-light);
}

.aqp-prose strong {
  color: var(--aqp-charcoal);
}

/* ─── CARDS ─── */

.aqp-card {
  background: var(--aqp-white);
  border: 1px solid var(--aqp-warm-mid);
  padding: 2rem;
  transition: border-color .3s ease, transform .3s ease;
}

.aqp-card:hover {
  border-color: var(--aqp-terracotta);
  transform: translateY(-2px);
}

.aqp-card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.25rem;
}

.aqp-card__title {
  font-family: var(--aqp-font-heading);
  font-size: 1.25rem;
  color: var(--aqp-charcoal);
  margin-bottom: .75rem;
  font-weight: 400;
}

.aqp-card__text {
  font-size: .9375rem;
  color: var(--aqp-text-light);
  line-height: 1.7;
}

/* ─── PROJECT CARDS ─── */

.aqp-project {
  position: relative;
  overflow: hidden;
  background: var(--aqp-charcoal);
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  border: 1px solid rgba(191,54,12,.15);
  transition: border-color .3s ease;
}

.aqp-project:hover {
  border-color: var(--aqp-terracotta);
}

.aqp-project__label {
  font-size: .6875rem;
  text-transform: uppercase;
  letter-spacing: .15em;
  color: var(--aqp-terracotta);
  margin-bottom: .5rem;
}

.aqp-project__name {
  font-family: var(--aqp-font-heading);
  font-size: 1.5rem;
  color: var(--aqp-white);
  margin-bottom: .5rem;
  font-weight: 400;
}

.aqp-project__desc {
  font-size: .875rem;
  color: var(--aqp-warm-mid);
  line-height: 1.6;
}

/* ─── STATS ─── */

.aqp-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--aqp-warm-mid);
  border: 1px solid var(--aqp-warm-mid);
}

.aqp-stat {
  background: var(--aqp-white);
  padding: 2.5rem 1.5rem;
  text-align: center;
}

.aqp-stat__number {
  font-family: var(--aqp-font-heading);
  font-size: 2.5rem;
  color: var(--aqp-terracotta);
  line-height: 1;
  margin-bottom: .5rem;
}

.aqp-stat__label {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .15em;
  color: var(--aqp-text-light);
}

/* ─── CTA ─── */

.aqp-cta {
  display: inline-block;
  padding: .875rem 2rem;
  background: var(--aqp-terracotta);
  color: var(--aqp-white);
  font-size: .8125rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  border: none;
  cursor: pointer;
  transition: background .25s ease;
  text-decoration: none;
}

.aqp-cta:hover {
  background: var(--aqp-terracotta-light);
  color: var(--aqp-white);
}

.aqp-cta--outline {
  background: transparent;
  border: 1px solid var(--aqp-terracotta);
  color: var(--aqp-terracotta);
}

.aqp-cta--outline:hover {
  background: var(--aqp-terracotta);
  color: var(--aqp-white);
}

/* ─── TABLE ─── */

.aqp-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
}

.aqp-table th,
.aqp-table td {
  padding: .875rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--aqp-warm-mid);
  font-size: .9375rem;
}

.aqp-table th {
  background: var(--aqp-warm);
  font-weight: 600;
  color: var(--aqp-charcoal);
  font-size: .8125rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}

/* ─── FOOTER ─── */

.aqp-footer {
  background: var(--aqp-charcoal);
  color: var(--aqp-warm-mid);
  padding: 4rem 0 2rem;
  border-top: 2px solid var(--aqp-terracotta);
}

.aqp-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--aqp-gutter);
  margin-bottom: 3rem;
}

.aqp-footer__brand {
  font-family: var(--aqp-font-heading);
  font-size: 1.25rem;
  color: var(--aqp-white);
  margin-bottom: 1rem;
}

.aqp-footer__brand span {
  color: var(--aqp-terracotta);
}

.aqp-footer__desc {
  font-size: .875rem;
  line-height: 1.7;
  color: var(--aqp-text-light);
}

.aqp-footer__heading {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .15em;
  color: var(--aqp-terracotta);
  margin-bottom: 1rem;
}

.aqp-footer__links {
  list-style: none;
}

.aqp-footer__links li {
  margin-bottom: .5rem;
}

.aqp-footer__links a {
  color: var(--aqp-text-light);
  font-size: .875rem;
  text-decoration: none;
  transition: color .25s ease;
}

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

.aqp-footer__bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 1.5rem;
  font-size: .75rem;
  color: var(--aqp-text-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ─── SCROLL ANIMATIONS ─── */

[data-aqp-reveal] {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .7s ease, transform .7s ease;
}

[data-aqp-reveal].aqp-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-aqp-reveal="delay-1"] { transition-delay: .1s; }
[data-aqp-reveal="delay-2"] { transition-delay: .2s; }
[data-aqp-reveal="delay-3"] { transition-delay: .3s; }

/* ─── RESPONSIVE ─── */

@media (max-width: 900px) {
  .aqp-grid--2,
  .aqp-grid--3 {
    grid-template-columns: 1fr;
  }

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

  .aqp-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .aqp-hero__content {
    padding: 7rem var(--aqp-gutter) 3rem;
  }
}

@media (max-width: 640px) {
  :root {
    --aqp-gutter: 1.25rem;
  }

  .aqp-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--aqp-charcoal);
    padding: 1rem var(--aqp-gutter) 1.5rem;
    gap: .75rem;
    border-top: 1px solid rgba(191,54,12,.15);
  }

  .aqp-nav.aqp-nav--open {
    display: flex;
  }

  .aqp-menu-toggle {
    display: block;
  }

  .aqp-stats {
    grid-template-columns: 1fr 1fr;
  }

  .aqp-footer__grid {
    grid-template-columns: 1fr;
  }

  .aqp-footer__bottom {
    flex-direction: column;
    gap: .5rem;
    text-align: center;
  }

  .aqp-section {
    padding: 4rem 0;
  }
}