/* ============================================================
   MEP PRO LTD — shared stylesheet
   Design language: the engineering drawing sheet.
   Colour code (as on M&E drawings): mechanical = blue,
   electrical = amber. Mono type = drawing annotations.
   ============================================================ */

:root {
  --ink: #1f3a55;       /* navy ink */
  --purple: #584878;    /* MEP Pro purple */
  --muted: #5b6a7b;
  --paper: #f7f7f8;
  --card: #ffffff;
  --line: #d9dde2;
  --line-soft: #e8eaee;
  --mech: #305890;      /* MEP Pro blue — mechanical */
  --mech-soft: #e9eff7;
  --elec: #903030;      /* MEP Pro red — electrical */
  --elec-soft: #f6e9e9;
  --font-display: "Archivo", sans-serif;
  --font-body: "IBM Plex Sans", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
  --max: 1180px;
  --radius: 10px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

:focus-visible {
  outline: 2.5px solid var(--mech);
  outline-offset: 3px;
  border-radius: 2px;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246, 247, 245, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  flex-direction: row-reverse;   /* logo top right, as on the MEP Pro decks */
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
}

.logo img { height: 54px; width: auto; }
.logo { flex-direction: row-reverse; text-align: right; }
.logo {
  font-family: "Bodoni Moda", serif;
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 8px;
  white-space: nowrap;
}
.logo .m { color: var(--mech); }
.logo .e { color: var(--elec); }
.logo small {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--ink);
}

.nav {
  display: flex;
  align-items: stretch;
  gap: 26px;
  flex-wrap: nowrap;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.nav::-webkit-scrollbar { display: none; }

.nav a {
  text-decoration: none;
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--ink);
  padding: 24px 2px;
  border-bottom: 3px solid transparent;
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s;
}
.nav a:hover { color: var(--mech); }
.nav a[aria-current="page"] {
  color: var(--mech);
  font-weight: 600;
  border-bottom-color: var(--mech);
}
.nav a.nav-cta {
  color: var(--elec);
  font-weight: 600;
}
.nav a.nav-cta:hover { color: #7a2323; }
.nav a.nav-cta[aria-current="page"] { color: var(--elec); border-bottom-color: var(--elec); }

/* ---------- page scaffold ---------- */

.page-head {
  padding: 52px 0 28px;
  border-bottom: 1px solid var(--line);
}
.page-head, .hero {
  background:
    linear-gradient(100deg, rgba(247,247,248,0.35) 0%, var(--paper) 46%),
    url("../assets/drawing-bg.jpg") left top / auto 115% no-repeat,
    var(--paper);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}
.eyebrow::after {
  content: "";
  height: 1px;
  width: 64px;
  background: var(--line);
}
.eyebrow .code { color: var(--purple); }

h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.85rem, 3.2vw, 2.5rem);
  line-height: 1.06;
  letter-spacing: -0.025em;
  max-width: 18ch;
}

.page-head .lede,
.lede {
  margin-top: 16px;
  font-size: 1.04rem;
  color: var(--muted);
  max-width: 62ch;
}

section { padding: 64px 0; }
section + section { border-top: 1px solid var(--line); }

h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 2vw, 1.6rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 14px;
  max-width: 24ch;
}

h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.12rem;
  letter-spacing: -0.01em;
}

p + p { margin-top: 12px; }

.muted { color: var(--muted); }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  padding: 13px 22px;
  border-radius: 999px;
  border: 1px solid var(--ink);
  transition: transform 0.15s, background 0.15s, color 0.15s;
}
.btn-solid { background: var(--ink); color: #fff; }
.btn-solid:hover { background: #26323e; transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--card); transform: translateY(-1px); }
.btn .arrow { transition: transform 0.15s; }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- home hero ---------- */

.hero { padding: 64px 0 56px; border-bottom: 1px solid var(--line); }

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.hero h1 { max-width: none; font-size: clamp(1.7rem, 2.5vw, 2.15rem); }
@media (max-width: 700px) { .wide-only { display: none; } }

.hero-actions { margin-top: 30px; display: flex; gap: 12px; flex-wrap: wrap; }

.hero-meta {
  margin-top: 38px;
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.hero-meta div { border-left: 2px solid var(--line); padding-left: 14px; }
.hero-meta .k {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.hero-meta .v { font-weight: 600; font-size: 0.95rem; }

/* the self-drawing schematic */
.schematic {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 12px 34px rgba(20, 30, 40, 0.07);
}
.schematic .cap {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-top: 14px;
  border-top: 1px dashed var(--line);
  padding-top: 10px;
}

.draw path, .draw line, .draw circle, .draw rect, .draw polyline {
  stroke-dasharray: 1200;
  stroke-dashoffset: 1200;
  animation: drawline 2.6s ease forwards;
}
.draw .d2 { animation-delay: 0.5s; }
.draw .d3 { animation-delay: 1.0s; }
.draw .d4 { animation-delay: 1.5s; }
@keyframes drawline { to { stroke-dashoffset: 0; } }

/* ---------- key/legend chips ---------- */

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 11px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--muted);
}
.chip::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.chip.mech { color: var(--mech); border-color: #c3d2e6; background: var(--mech-soft); }
.chip.mech::before { background: var(--mech); }
.chip.elec { color: #903030; border-color: #ddc0c0; background: var(--elec-soft); }
.chip.elec::before { background: var(--elec); }

/* ---------- cards ---------- */

.grid { display: grid; gap: 18px; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(20, 30, 40, 0.08);
  border-color: #c3cbd1;
}

.card .stage {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mech);
  display: inline-block;
  border-bottom: 2px solid var(--mech);
  padding-bottom: 3px;
  margin-bottom: 16px;
}
.card:nth-child(even) .stage { color: #903030; border-color: var(--elec); }

.card h3 { margin-bottom: 9px; }
.card p { font-size: 0.95rem; color: var(--muted); }

/* benefit list */
.benefits { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 34px; margin-top: 26px; }
.benefit { display: flex; gap: 13px; align-items: flex-start; }
.benefit .tick {
  flex: none;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--mech-soft);
  color: var(--mech);
  display: grid; place-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  margin-top: 2px;
}
.benefit:nth-child(even) .tick { background: var(--elec-soft); color: #903030; }
.benefit strong { display: block; font-size: 0.98rem; }
.benefit span { font-size: 0.9rem; color: var(--muted); }

/* ---------- customer logo marquee ---------- */

.marquee {
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: var(--card);
  padding: 30px 0;
  mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track {
  display: flex;
  gap: 64px;
  width: max-content;
  animation: scroll 32s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes scroll { to { transform: translateX(-50%); } }

.logo-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: #9aa5ad;
  white-space: nowrap;
  filter: grayscale(1);
  transition: color 0.2s, filter 0.2s, transform 0.2s;
}
.logo-item:hover { color: var(--ink); filter: grayscale(0); transform: scale(1.05); }
.logo-item .mark {
  width: 34px; height: 34px;
  border-radius: 8px;
  display: grid; place-items: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #fff;
}

.logo-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.logo-tile {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-height: 110px;
  display: grid;
  place-items: center;
  padding: 18px;
  transition: transform 0.18s, box-shadow 0.18s;
}
.logo-tile:hover { transform: translateY(-3px); box-shadow: 0 12px 26px rgba(20,30,40,0.08); }
.logo-tile .logo-item { font-size: 1.02rem; }

/* ---------- partners ---------- */

.partner { display: flex; gap: 18px; align-items: flex-start; }
.avatar {
  flex: none;
  width: 52px; height: 52px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  color: #fff;
  font-size: 1rem;
}
.partner .role {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}

/* ---------- case study tabs ---------- */

.tabs { display: flex; gap: 8px; flex-wrap: wrap; margin: 8px 0 34px; }
.tab {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--muted);
  cursor: pointer;
  transition: all 0.15s;
}
.tab:hover { border-color: var(--ink); color: var(--ink); }
.tab[aria-selected="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }

.panel { display: none; }
.panel.active { display: block; animation: fadeup 0.35s ease; }
@keyframes fadeup { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.case { display: grid; grid-template-columns: 130px 1fr; gap: 0; overflow: hidden; padding: 0; }
.case .ref {
  background: var(--ink);
  color: #fff;
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
}
.case .ref .no { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.12em; color: #8fa0af; }
.case .ref .size { font-family: var(--font-display); font-weight: 800; font-size: 1.3rem; line-height: 1.1; }
.case .ref .size small { display: block; font-family: var(--font-mono); font-weight: 400; font-size: 0.62rem; letter-spacing: 0.12em; color: #8fa0af; margin-top: 4px; }
.case .body { padding: 22px 26px; }
.case .body .facts {
  display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px;
}

/* ---------- contact ---------- */

.contact-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contact-card {
  text-decoration: none;
  display: block;
}
.contact-card .k {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}
.contact-card .v {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  letter-spacing: -0.015em;
  word-break: break-word;
}
.contact-card:hover .v { color: var(--mech); }
.contact-card.amber:hover .v { color: #903030; }

/* ---------- CTA band ---------- */

.cta-band {
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius);
  padding: 46px 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
}
.cta-band h2 { color: #fff; margin-bottom: 6px; }
.cta-band p { color: #aeb9c2; }
.cta-band .btn { border-color: #fff; }
.cta-band .btn-solid { background: #fff; color: var(--ink); }
.cta-band .btn-solid:hover { background: #e8eaee; color: var(--ink); }

/* ---------- footer as drawing title block ---------- */

.site-footer { border-top: 1px solid var(--line); background: var(--card); margin-top: 24px; }
.title-block {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  border-inline: 1px solid var(--line);
}
.tb-cell {
  padding: 18px 20px;
  border-right: 1px solid var(--line);
  min-height: 96px;
}
.tb-cell:last-child { border-right: none; }
.tb-cell .k {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 7px;
}
.tb-cell .v { font-size: 0.9rem; font-weight: 600; line-height: 1.45; }
.tb-cell a { text-decoration: none; }
.tb-cell a:hover { color: var(--mech); }
.footer-base {
  border-top: 1px solid var(--line);
  padding: 14px 0;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

/* ---------- responsive ---------- */

@media (max-width: 940px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
  .logo-grid { grid-template-columns: repeat(3, 1fr); }
  .title-block { grid-template-columns: 1fr 1fr; }
  .tb-cell { border-bottom: 1px solid var(--line); }
}

@media (max-width: 640px) {
  .site-header .wrap { flex-direction: column-reverse; align-items: flex-start; gap: 0; padding-block: 10px 0; }
  .site-header .logo { align-self: flex-end; padding-top: 2px; }
  .site-header .nav { width: 100%; }
  .nav a { padding: 12px 2px 14px; }
  .grid.cols-2, .grid.cols-3, .benefits, .contact-cards { grid-template-columns: 1fr; }
  .logo-grid { grid-template-columns: repeat(2, 1fr); }
  .case { grid-template-columns: 1fr; }
  .case .ref { flex-direction: row; align-items: center; }
  section { padding: 48px 0; }
  .title-block { grid-template-columns: 1fr; border-inline: none; }
  .tb-cell { border-right: none; }
}

/* ---------- motion preferences ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .marquee-track { animation: none; flex-wrap: wrap; width: auto; }
  .draw path, .draw line, .draw circle, .draw rect, .draw polyline {
    animation: none; stroke-dasharray: none; stroke-dashoffset: 0;
  }
  .card, .btn, .logo-item, .logo-tile { transition: none; }
}


/* ---------- specification comparison (Clear Information) ---------- */

.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 30px; align-items: stretch; }
.compare-col { padding: 26px; display: flex; flex-direction: column; gap: 16px; }
.compare-col .verdict {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 700; font-size: 1.05rem;
}
.compare-col .verdict .badge {
  width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center;
  font-weight: 700; font-size: 1rem; color: #fff;
}
.compare-col.bad .verdict .badge { background: #b23a3a; }
.compare-col.good .verdict .badge { background: #2e7d4f; }
.compare-col.bad { border-top: 4px solid #b23a3a; }
.compare-col.good { border-top: 4px solid #2e7d4f; }
.compare-col p { font-size: 0.93rem; color: var(--muted); }
.compare-col figure { margin-top: auto; }
.compare-col figure img {
  width: 100%; height: auto;
  border: 1px solid var(--line); border-radius: 6px;
  box-shadow: 0 6px 18px rgba(20,30,40,0.08);
}
.compare-col figcaption {
  font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted); margin-top: 8px;
}
@media (max-width: 760px) { .compare { grid-template-columns: 1fr; } }

.schematic > img { width: 100%; height: auto; border-radius: 6px; border: 1px solid var(--line-soft); }