/* Prime Electromech Limited
   Layout: navy hero cut on a diagonal like the company profile's chevrons,
   then quiet white and mist sections; one engineering-drawing title block carries the company facts. */
:root {
  --ink: #131627;        /* profile navy */
  --pem: #2056ae;        /* logo blue */
  --pem-deep: #173f86;
  --sky: #99def9;        /* wordmark sky blue */
  --mist: #eef4fa;
  --paper: #ffffff;
  --steel: #566176;      /* blue-biased grey for secondary text */
  --line: #d3dde9;
  --wa: #128c4a;

  --display: "Archivo", "Arial Narrow", Arial, Helvetica, sans-serif;
  --body: "Archivo", Arial, Helvetica, sans-serif;

  --step--1: 0.875rem;
  --step-0: 1.0625rem;
  --step-1: 1.25rem;
  --step-2: clamp(1.5rem, 1.3rem + 0.9vw, 1.95rem);
  --step-3: clamp(1.9rem, 1.5rem + 1.8vw, 2.75rem);
  --step-4: clamp(2.3rem, 1.6rem + 3.2vw, 3.9rem);

  --gutter: max(16px, env(safe-area-inset-left, 0px));
  --gutter-r: max(16px, env(safe-area-inset-right, 0px));
  --maxw: 1180px;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 5.5rem; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: var(--step-0);
  line-height: 1.6;
  font-stretch: 100%;
}
body::before {
  content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px);
  z-index: 60; background: var(--paper);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--pem); text-underline-offset: 0.18em; }
a:hover { color: var(--pem-deep); }
:focus-visible { outline: 3px solid var(--sky); outline-offset: 2px; }
h1, h2, h3 {
  font-family: var(--display);
  font-stretch: 118%;
  font-weight: 750;
  line-height: 1.08;
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin: 0;
}
h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-1); }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
dl, dd { margin: 0; }

.sr-only {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}
.hp { display: none !important; } /* spam trap: hidden from people and screen readers, still filled by bots */
.skip {
  position: absolute; left: 1rem; top: -4rem; z-index: 100;
  background: var(--ink); color: var(--paper); padding: 0.6rem 1rem;
}
.skip:focus { top: calc(1rem + env(safe-area-inset-top, 0px)); }

.wrap {
  width: 100%;
  max-width: calc(var(--maxw) + 32px);
  margin-inline: auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter-r);
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding-inline: 1.4rem;
  font: inherit; font-weight: 650; font-stretch: 108%;
  text-decoration: none; border: 2px solid transparent; border-radius: 4px;
  cursor: pointer; transition: background-color 0.15s, color 0.15s, border-color 0.15s;
}
.btn-small { min-height: 40px; padding-inline: 1rem; font-size: var(--step--1); }
.btn-primary { background: var(--pem); color: var(--paper); }
.btn-primary:hover { background: var(--pem-deep); color: var(--paper); }
.btn-sky { background: var(--sky); color: var(--ink); }
.btn-sky:hover { background: var(--paper); color: var(--ink); }
.btn-ghost { border-color: currentColor; color: var(--paper); background: transparent; }
.btn-ghost:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.text-link { font-weight: 600; }

/* Header */
.site-header {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50;
  background: var(--paper); border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  min-height: 72px;
}
.brand { display: flex; align-items: center; gap: 0.7rem; text-decoration: none; color: var(--ink); }
.brand img { width: 48px; height: 48px; }
.brand-name { font-family: var(--display); font-stretch: 118%; font-weight: 900; font-size: 1.3rem; line-height: 1.05; letter-spacing: -0.01em; }
.brand-name span { display: block; font-size: 0.74rem; font-weight: 700; letter-spacing: 0.1em; color: var(--pem); }
@media (max-width: 560px) {
  .header-inner { min-height: 64px; }
  .brand { gap: 0.55rem; }
  .brand img { width: 40px; height: 40px; }
  .brand-name { font-size: 1.05rem; white-space: nowrap; }
  .brand-name span { font-size: 0.66rem; }
}
@media (max-width: 360px) { .brand-name { font-size: 0.95rem; } }
.footer-name { font-family: var(--display); font-stretch: 118%; font-weight: 900; font-size: 1.3rem; line-height: 1.1; color: var(--paper); }
.site-nav { display: flex; align-items: center; gap: 1.5rem; }
.site-nav ul { display: flex; gap: 1.4rem; }
.site-nav ul a {
  color: var(--ink); text-decoration: none; font-weight: 550;
  padding-block: 0.4rem; border-bottom: 2px solid transparent;
}
.site-nav ul a:hover { color: var(--pem); }
.site-nav ul a[aria-current="page"] { border-bottom-color: var(--pem); }
.nav-toggle {
  display: none; width: 48px; height: 48px; border: 0; background: transparent; cursor: pointer;
  align-items: center; justify-content: center; color: var(--ink);
}
.nav-toggle-bars, .nav-toggle-bars::before, .nav-toggle-bars::after {
  display: block; width: 24px; height: 2px; background: currentColor; position: relative;
}
.nav-toggle-bars::before, .nav-toggle-bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle-bars::before { top: -7px; }
.nav-toggle-bars::after { top: 7px; }

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: 0.5rem var(--gutter-r) 1.25rem var(--gutter);
  }
  .site-nav:not([data-open]) { display: none; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav ul a { display: block; padding-block: 0.85rem; border-bottom: 1px solid var(--line); }
  .site-nav ul a[aria-current="page"] { color: var(--pem); border-bottom-color: var(--line); }
  .site-nav .btn { margin-top: 1rem; min-height: 48px; }
}

/* Hero */
.hero {
  position: relative; overflow: hidden;
  background: var(--ink); color: var(--paper);
}
.hero-inner {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: stretch; min-height: 520px;
}
.hero-copy {
  display: flex; flex-direction: column; justify-content: center; gap: 1.5rem;
  padding-block: 4.5rem 6rem; padding-right: 2rem; position: relative; z-index: 2;
}
.hero-copy h1 { max-width: 13ch; }
.lede { font-size: var(--step-1); line-height: 1.5; max-width: 34em; }
.hero .lede { color: #d7e3f2; }
.hero-media { margin: 0; position: relative; margin-right: calc(-1 * var(--gutter-r)); }
.hero-img {
  width: 100%; height: 100%; object-fit: cover;
  clip-path: polygon(18% 0, 100% 0, 100% 100%, 0 100%);
}
.hero-media figcaption {
  position: absolute; right: var(--gutter-r); bottom: 3.5rem; max-width: 22rem;
  background: rgba(19, 22, 39, 0.82); color: var(--paper);
  font-size: var(--step--1); padding: 0.5rem 0.75rem; line-height: 1.4;
}
.shard {
  position: absolute; pointer-events: none; z-index: 1;
  background: var(--sky);
}
.shard-a {
  width: 260px; height: 120px; left: -40px; bottom: 0;
  clip-path: polygon(0 100%, 100% 100%, 22% 0);
  animation: shard-in 0.9s cubic-bezier(.2, .7, .2, 1) both;
}
.shard-b {
  width: 220px; height: 100%; right: 0; top: 0;
  clip-path: polygon(70% 0, 100% 0, 100% 100%, 30% 100%);
  opacity: 0.9;
}
@keyframes shard-in { from { transform: translateX(-60px); } to { transform: none; } }

@media (max-width: 860px) {
  .hero-inner { grid-template-columns: minmax(0, 1fr); min-height: 0; }
  .hero-copy { padding-block: 3rem 2.5rem; padding-right: 0; }
  .hero-media { margin-left: calc(-1 * var(--gutter)); }
  .hero-img { aspect-ratio: 4 / 3; height: auto; clip-path: polygon(0 12%, 100% 0, 100% 100%, 0 100%); }
  .hero-media figcaption { bottom: 1rem; left: var(--gutter); right: auto; }
  .shard-a { display: none; }
}

/* Title block: company facts set out like an engineering drawing's title block */
.titleblock-band { position: relative; z-index: 3; }
.titleblock {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: -2.75rem; background: var(--paper);
  border: 2px solid var(--ink);
}
.titleblock > div { padding: 0.85rem 1.1rem; border-left: 1px solid var(--ink); min-width: 0; }
.titleblock > div:first-child { border-left: 0; }
.titleblock dt { font-size: 0.78rem; color: var(--steel); letter-spacing: 0.02em; }
.titleblock dd { font-weight: 650; font-stretch: 108%; line-height: 1.35; }
@media (max-width: 860px) {
  .titleblock { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 1.5rem; }
  .titleblock > div:nth-child(3) { border-left: 0; }
  .titleblock > div:nth-child(n+3) { border-top: 1px solid var(--ink); }
}
@media (max-width: 420px) {
  .titleblock { grid-template-columns: minmax(0, 1fr); }
  .titleblock > div { border-left: 0; }
  .titleblock > div + div { border-top: 1px solid var(--ink); }
}

/* Sections */
.section { padding-block: clamp(3.5rem, 7vw, 5.5rem); }
.section-head {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between;
  gap: 0.5rem 2rem; margin-bottom: 2rem;
}
.about-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 3rem; }
.about-copy { display: grid; gap: 1.1rem; align-content: start; max-width: 38em; }
.about-copy h2 { margin-bottom: 0.4rem; }
.about-aside { display: grid; gap: 1.5rem; align-content: start; padding-top: 0.5rem; }
.vision {
  font-family: var(--display); font-stretch: 112%; font-weight: 600;
  font-size: var(--step-2); line-height: 1.25; color: var(--pem);
  border-left: 4px solid var(--sky); padding-left: 1.25rem;
}
.vision span { display: block; font-family: var(--body); font-stretch: 100%; font-size: var(--step--1); font-weight: 600; color: var(--steel); margin-bottom: 0.4rem; }
.motto { color: var(--steel); padding-left: calc(1.25rem + 4px); }
@media (max-width: 860px) { .about-grid { grid-template-columns: minmax(0, 1fr); gap: 2rem; } }

.services { background: var(--mist); }
.service-list { border-top: 2px solid var(--ink); }
.service {
  display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.4fr); gap: 0.4rem 2rem;
  padding-block: 1.1rem; border-bottom: 1px solid var(--line);
}
.service dt { font-family: var(--display); font-stretch: 115%; font-weight: 700; font-size: var(--step-1); }
.service dt a { color: var(--ink); text-decoration: none; }
.service dt a:hover { color: var(--pem); text-decoration: underline; }
.service dd { color: var(--steel); max-width: 40em; }
@media (max-width: 640px) { .service { grid-template-columns: minmax(0, 1fr); } }

.project-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem 1.5rem; }
.project-card a { display: grid; gap: 0.35rem; text-decoration: none; color: var(--ink); }
.project-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; margin-bottom: 0.6rem; }
.project-card-title { font-family: var(--display); font-stretch: 112%; font-weight: 700; font-size: var(--step-1); line-height: 1.2; }
.project-card-place { color: var(--steel); font-size: var(--step--1); }
.project-card a:hover .project-card-title { color: var(--pem); text-decoration: underline; }
@media (max-width: 1000px) { .project-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .project-cards { grid-template-columns: minmax(0, 1fr); } }

.clients { padding-top: 0; }
.clients h2 { margin-bottom: 1.75rem; }
.client-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 0 1.5rem; }
.client-list li {
  border-top: 2px solid var(--ink); padding: 0.9rem 0 1.2rem;
  font-weight: 600; font-stretch: 105%; line-height: 1.35;
}

.certs { padding-top: 0; }
.certs h2 { margin-bottom: 1.75rem; }
.cert-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 0 1.5rem; }
.cert-list > div { border-top: 2px solid var(--pem); padding: 0.9rem 0 1.2rem; display: grid; gap: 0.25rem; align-content: start; }
.cert-list dt { font-weight: 650; font-stretch: 105%; line-height: 1.35; }
.cert-list dd { color: var(--steel); font-size: var(--step--1); }

.cta-band { background: var(--pem); color: var(--paper); }
.cta-inner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 1.5rem 3rem; padding-block: 3.25rem;
}
.cta-inner h2 { font-size: var(--step-3); margin-bottom: 0.5rem; }
.cta-inner p { color: #e3ecf8; max-width: 32em; }

/* Inner page heads */
.page-head { position: relative; overflow: hidden; background: var(--ink); color: var(--paper); }
.page-head .wrap { position: relative; z-index: 2; padding-block: 3.5rem 3.25rem; display: grid; gap: 1rem; }
.page-head .lede { color: #d7e3f2; }
.page-head-tall .wrap { padding-block: 5rem; gap: 1.25rem; }
@media (max-width: 640px) {
  .shard-b { width: 72px; }
  .page-head .wrap { padding-right: calc(var(--gutter-r) + 48px); }
}

/* Projects */
.project { padding-block: clamp(3rem, 6vw, 4.5rem); }
.project:nth-of-type(even) { background: var(--mist); }
.project h2 { font-size: var(--step-2); max-width: 30ch; margin-bottom: 1.25rem; }
.project-meta {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 56rem;
  border: 2px solid var(--ink); background: var(--paper); margin-bottom: 1.75rem;
}
.project-meta > div { padding: 0.75rem 1rem; border-left: 1px solid var(--ink); min-width: 0; }
.project-meta > div:first-child { border-left: 0; }
.project-meta > .wide { grid-column: 1 / -1; border-left: 0; border-top: 1px solid var(--ink); }
.project-meta > .wide:first-child { border-top: 0; }
.project-meta dt { font-size: 0.78rem; color: var(--steel); }
.project-meta dd { font-weight: 550; line-height: 1.45; }
@media (max-width: 560px) {
  .project-meta { grid-template-columns: minmax(0, 1fr); }
  .project-meta > div { border-left: 0; }
  .project-meta > div + div { border-top: 1px solid var(--ink); }
}

.photo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 230px), 1fr)); gap: 0.75rem; }
.photo {
  display: block; width: 100%; padding: 0; border: 0; background: var(--line);
  cursor: zoom-in; overflow: hidden;
}
.photo img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform 0.3s; }
.photo:hover img { transform: scale(1.03); }

/* Services page */
.service-rows { display: grid; padding-block: 1rem 3.5rem; }
.service-row {
  display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.5rem 3rem;
  padding-block: 2.75rem; border-bottom: 1px solid var(--line);
}
.service-row:last-child { border-bottom: 0; }
.service-row.has-photos { grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); align-items: start; }
.service-text { display: grid; gap: 0.9rem; align-content: start; max-width: 38em; }
.service-text h2 { font-size: var(--step-2); }
.service-text > p { color: var(--steel); }
.ticks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.35rem 1.5rem; margin-top: 0.4rem; }
.ticks li { position: relative; padding-left: 1.1rem; line-height: 1.45; }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: 0.5em; width: 8px; height: 8px;
  background: var(--sky); clip-path: polygon(0 0, 100% 50%, 0 100%);
}
.service-photos { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; }
.service-photos li:only-child { grid-column: 1 / -1; }
.service-photos li:only-child img { aspect-ratio: 16 / 9; }
@media (max-width: 860px) {
  .service-row.has-photos { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 420px) { .ticks { grid-template-columns: minmax(0, 1fr); } }

/* Contact */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 3rem; align-items: start; }
.quote-form { display: grid; gap: 1.1rem; background: var(--mist); padding: clamp(1.25rem, 3vw, 2.25rem); border-top: 4px solid var(--pem); }
.quote-form h2 { font-size: var(--step-2); margin-bottom: 0.25rem; }
.field { display: grid; gap: 0.35rem; min-width: 0; }
.field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.1rem; }
.field label { font-weight: 600; font-size: var(--step--1); }
.opt { font-weight: 400; color: var(--steel); }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; color: var(--ink); background: var(--paper);
  border: 1.5px solid #9aa8bb; border-radius: 4px; padding: 0.7rem 0.8rem; min-height: 48px;
}
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 3px solid var(--sky); outline-offset: 0; border-color: var(--pem); }
.quote-form .btn { justify-self: start; }
.contact-aside { display: grid; gap: 2rem; }
.contact-block { display: grid; gap: 0.75rem; }
.contact-block h2 { font-size: var(--step-1); padding-bottom: 0.5rem; border-bottom: 2px solid var(--ink); }
@media (max-width: 860px) { .contact-grid { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 520px) { .field-row { grid-template-columns: minmax(0, 1fr); } }

.person { display: grid; gap: 0.1rem; align-content: start; }
.person + .person { margin-top: 0.9rem; }
.person-name { font-weight: 700; font-stretch: 108%; }
.person-role { color: var(--steel); font-size: var(--step--1); }
.person a { overflow-wrap: anywhere; }

/* Footer */
.site-footer { background: var(--ink); color: #cfd9e8; font-size: var(--step--1); padding-bottom: 5rem; }
.site-footer a { color: var(--sky); }
.site-footer a:hover { color: var(--paper); }
.footer-grid {
  display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1.4fr) minmax(0, 0.6fr);
  gap: 2.5rem; padding-block: 3.5rem 2.5rem;
}
.footer-brand { display: grid; gap: 0.9rem; align-content: start; }
.footer-brand img { width: 64px; height: 64px; }
.footer-people { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
.footer-people .person + .person { margin-top: 0; }
.footer-people .person-name { color: var(--paper); }
.footer-people .person-role { color: #9fb0c8; }
.footer-nav ul { display: grid; gap: 0.5rem; }
.footer-base { border-top: 1px solid #2a3150; padding-block: 1.25rem; color: #9fb0c8; }
@media (max-width: 860px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-people { grid-template-columns: minmax(0, 1fr); }
}

/* WhatsApp */
.whatsapp {
  position: fixed; z-index: 40;
  right: calc(1rem + env(safe-area-inset-right, 0px));
  bottom: calc(1rem + env(safe-area-inset-bottom, 0px));
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: var(--wa); color: var(--paper); text-decoration: none;
  font-weight: 650; padding: 0.75rem 1.1rem; border-radius: 999px;
  box-shadow: 0 6px 18px rgba(19, 22, 39, 0.25);
}
.whatsapp:hover { background: #0e7a40; color: var(--paper); }
@media (max-width: 640px) {
  .whatsapp { width: 52px; height: 52px; padding: 0; justify-content: center; }
  .whatsapp span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .whatsapp svg { width: 26px; height: 26px; }
}

/* Lightbox */
.lightbox {
  border: 0; padding: 0; background: transparent; max-width: 100vw; max-height: 100vh;
  width: 100%; height: 100%;
}
.lightbox::backdrop { background: rgba(10, 12, 22, 0.92); }
.lightbox figure {
  margin: 0; height: 100%; display: grid; place-content: center; justify-items: center; gap: 0.75rem;
  padding: 3.5rem max(16px, env(safe-area-inset-right, 0px)) 2rem max(16px, env(safe-area-inset-left, 0px));
}
.lightbox img { max-width: min(1100px, 92vw); max-height: 78vh; width: auto; height: auto; }
.lightbox figcaption { color: var(--paper); text-align: center; max-width: 40em; }
.lb-btn, .lb-close {
  position: fixed; border: 0; background: rgba(255, 255, 255, 0.12); color: var(--paper);
  width: 48px; height: 48px; border-radius: 50%; font-size: 1.8rem; line-height: 1; cursor: pointer;
}
.lb-btn:hover, .lb-close:hover { background: rgba(255, 255, 255, 0.25); }
.lb-prev { left: calc(1rem + env(safe-area-inset-left, 0px)); top: 50%; transform: translateY(-50%); }
.lb-next { right: calc(1rem + env(safe-area-inset-right, 0px)); top: 50%; transform: translateY(-50%); }
.lb-close { right: calc(1rem + env(safe-area-inset-right, 0px)); top: calc(1rem + env(safe-area-inset-top, 0px)); }
@media (max-width: 640px) { .lb-btn { top: auto; bottom: 1rem; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}