/* =========================================================
   PRECISE CONSTRUCT — design system
   Tokens sourced from the brand identity guide:
   #304D59 (slate), #929191 (grey), #FFFFFF — Michroma / Raleway
   ========================================================= */

:root{
  --c-primary:       #304D59;
  --c-primary-dark:  #1C2E35;
  --c-primary-mid:   #44707F;
  --c-primary-tint:  #EEF2F3;
  --c-grey:          #929191;
  --c-grey-line:     #D8D6D4;
  --c-grey-light:    #F2F1F0;
  --c-white:         #FFFFFF;
  --c-ink:           #22343B;

  --font-display: 'Michroma', sans-serif;
  --font-body: 'Raleway', sans-serif;

  --container: 1180px;
  --radius: 2px;
  --gap: clamp(1.5rem, 3vw, 3rem);
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--c-ink);
  background: var(--c-white);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: inherit; }
h1,h2,h3,h4{ margin:0 0 0.5em; font-weight: 400; line-height: 1.15; }
p{ margin: 0 0 1em; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family: inherit; }

.container{
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.skip-link{
  position:absolute; left:-999px; top:auto;
  background:var(--c-primary); color:var(--c-white);
  padding:0.75em 1.25em; z-index:200;
}
.skip-link:focus{ left:1rem; top:1rem; }

/* ---------- Typography helpers ---------- */
.eyebrow{
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--c-primary-mid);
  display:flex; align-items:center; gap:0.75em;
  margin-bottom: 1em;
}
.eyebrow::before{
  content:"";
  width: 28px; height: 1px;
  background: currentColor;
  display:inline-block;
}
.eyebrow--light{ color: rgba(255,255,255,0.75); }

h1, .h1{ font-family: var(--font-display); font-size: clamp(2rem, 4.2vw, 3.4rem); letter-spacing: -0.01em; }
h2, .h2{ font-family: var(--font-display); font-size: clamp(1.5rem, 2.6vw, 2.1rem); letter-spacing: 0; color: var(--c-primary); }
h3, .h3{ font-family: var(--font-body); font-weight:700; font-size: 1.15rem; color: var(--c-primary); }

.lede{ font-size: 1.15rem; color: var(--c-grey); max-width: 640px; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:0.6em;
  font-family: var(--font-body); font-weight:700; font-size:0.95rem;
  letter-spacing:0.03em;
  padding: 0.9em 1.6em;
  border: 1.5px solid var(--c-primary);
  border-radius: var(--radius);
  text-decoration:none;
  cursor:pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color .15s ease;
}
.btn-primary{ background: var(--c-primary); color: var(--c-white); }
.btn-primary:hover{ background: var(--c-primary-dark); border-color: var(--c-primary-dark); }
.btn-outline{ background: transparent; color: var(--c-primary); }
.btn-outline:hover{ background: var(--c-primary); color: var(--c-white); }
.btn-outline-light{ border-color: rgba(255,255,255,0.6); color: var(--c-white); }
.btn-outline-light:hover{ background: var(--c-white); color: var(--c-primary); border-color: var(--c-white); }
.btn-block{ width:100%; justify-content:center; }

/* ---------- Header ---------- */
.site-header{
  position: sticky; top:0; z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--c-grey-line);
}
.site-header .container{
  display:flex; align-items:center; justify-content:space-between;
  height: 84px;
}
.brand{ display:flex; align-items:center; }
.brand img{ height: 34px; width:auto; }

.main-nav{ display:flex; align-items:center; gap: 2.2rem; }
.main-nav ul{ display:flex; gap:2.2rem; }
.main-nav a{
  text-decoration:none; font-size:0.95rem; font-weight:600;
  color: var(--c-ink); position:relative; padding: 0.3em 0;
}
.main-nav a::after{
  content:""; position:absolute; left:0; right:100%; bottom:-2px; height:2px;
  background: var(--c-primary); transition: right .18s ease;
}
.main-nav a:hover::after, .main-nav a[aria-current="page"]::after{ right:0; }
.main-nav a[aria-current="page"]{ color: var(--c-primary); }

.header-actions{ display:flex; align-items:center; gap:1.4rem; }

.lang-switch{ position:relative; }
.lang-switch summary{
  list-style:none; cursor:pointer; display:flex; align-items:center; gap:0.4em;
  font-family: var(--font-display); font-size:0.72rem; letter-spacing:0.08em;
  border:1px solid var(--c-grey-line); padding:0.55em 0.8em; border-radius: var(--radius);
  color: var(--c-primary);
}
.lang-switch summary::-webkit-details-marker{ display:none; }
.lang-switch[open] summary{ background: var(--c-primary-tint); }
.lang-menu{
  position:absolute; right:0; top:calc(100% + 6px);
  background:var(--c-white); border:1px solid var(--c-grey-line); border-radius: var(--radius);
  min-width:150px; box-shadow: 0 12px 24px rgba(28,46,53,0.12);
  overflow:hidden;
}
.lang-menu a{
  display:flex; justify-content:space-between; gap:1em;
  padding:0.7em 1em; text-decoration:none; font-size:0.9rem;
  border-bottom:1px solid var(--c-grey-light);
}
.lang-menu a:last-child{ border-bottom:none; }
.lang-menu a:hover{ background: var(--c-primary-tint); }
.lang-menu a[aria-current="true"]{ font-weight:700; color: var(--c-primary); }

.nav-toggle{ display:none; }

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background: var(--c-primary);
  color: var(--c-white);
  overflow:hidden;
  padding: clamp(4rem, 9vw, 7.5rem) 0 clamp(3.5rem, 7vw, 6rem);
}
.hero::before{
  /* blueprint grid */
  content:"";
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
  pointer-events:none;
}
.hero .container{ position:relative; }
.hero-inner{ max-width: 680px; }
.hero p.lede{ color: rgba(255,255,255,0.82); }
.hero-actions{ display:flex; gap:1rem; flex-wrap:wrap; margin-top:2rem; }

/* ---------- Sections ---------- */
section{ padding: clamp(3.5rem, 7vw, 5.5rem) 0; }
.section-head{ max-width: 640px; margin-bottom: clamp(2rem, 4vw, 3rem); }
.section-alt{ background: var(--c-grey-light); }
.section-dark{ background: var(--c-primary-dark); color: var(--c-white); }
.section-dark h2{ color: var(--c-white); }

/* ---------- Grids / cards ---------- */
.grid-3{ display:grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.grid-2{ display:grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap); }

.card{
  position:relative;
  background: var(--c-white);
  border: 1px solid var(--c-grey-line);
  padding: 2rem;
}
/* corner-bracket signature */
.card::before, .card::after,
.bracket::before, .bracket::after{
  content:""; position:absolute; width:14px; height:14px;
  border-color: var(--c-primary); border-style:solid; border-width:0;
}
.card::before{ top:-1px; left:-1px; border-top-width:2px; border-left-width:2px; }
.card::after{ bottom:-1px; right:-1px; border-bottom-width:2px; border-right-width:2px; }

.value-card .num{
  font-family: var(--font-display); font-size:0.8rem; color: var(--c-grey);
  margin-bottom:1rem; display:block;
}

.service-card{ display:flex; flex-direction:column; gap:0.75rem; }

/* ---------- Pricing / consulting cards ---------- */
.pricing-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); margin-top: 2rem; }
.price-card{
  position:relative;
  background: var(--c-white);
  border: 1px solid var(--c-grey-line);
  padding: 2rem;
  display:flex; flex-direction:column;
}
.price-card::before, .price-card::after{
  content:""; position:absolute; width:14px; height:14px;
  border-color: var(--c-primary); border-style:solid; border-width:0;
}
.price-card::before{ top:-1px; left:-1px; border-top-width:2px; border-left-width:2px; }
.price-card::after{ bottom:-1px; right:-1px; border-bottom-width:2px; border-right-width:2px; }
.price-card .price{
  font-family: var(--font-display); font-size:1.8rem; color: var(--c-primary);
  margin: 1rem 0;
}
.price-card p{ color: var(--c-grey); flex-grow:1; }

/* ---------- CTA banner ---------- */
.cta-banner{
  background: var(--c-primary-tint);
  border: 1px solid var(--c-grey-line);
  padding: clamp(2rem, 5vw, 3.5rem);
  display:flex; align-items:center; justify-content:space-between; gap:2rem; flex-wrap:wrap;
}
.cta-banner h2{ margin-bottom:0.3em; }
.cta-banner p{ margin:0; color: var(--c-grey); }

/* ---------- Forms ---------- */
.form-row{ margin-bottom:1.4rem; }
.form-row label{ display:block; font-weight:700; font-size:0.85rem; margin-bottom:0.4em; color: var(--c-primary); }
.form-row input, .form-row textarea{
  width:100%; border:1px solid var(--c-grey-line); border-radius: var(--radius);
  padding:0.85em 1em; font-family: var(--font-body); font-size:1rem; background: var(--c-white);
}
.form-row input:focus, .form-row textarea:focus{
  outline:2px solid var(--c-primary-mid); outline-offset:1px;
}
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:1.4rem; }

.contact-layout{ display:grid; grid-template-columns: 1.3fr 1fr; gap: var(--gap); align-items:start; }
.info-list{ display:flex; flex-direction:column; gap:1.4rem; }
.info-list .label{ font-size:0.78rem; letter-spacing:0.08em; color: var(--c-grey); font-family: var(--font-display); display:block; margin-bottom:0.3em; }

/* ---------- Footer ---------- */
.site-footer{ background: var(--c-primary-dark); color: rgba(255,255,255,0.85); padding: 3.5rem 0 2rem; }
.footer-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--gap); margin-bottom: 2.5rem; }
.site-footer .brand img{ height:30px; }
.footer-tagline{ color: rgba(255,255,255,0.6); max-width:280px; margin-top:1rem; }
.footer-col h4{ font-family: var(--font-display); font-size:0.75rem; letter-spacing:0.12em; color: rgba(255,255,255,0.55); margin-bottom:1.1em; }
.footer-col ul{ display:flex; flex-direction:column; gap:0.7em; }
.footer-col a{ text-decoration:none; color: rgba(255,255,255,0.85); font-size:0.95rem; }
.footer-col a:hover{ color: var(--c-white); }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.12); padding-top:1.5rem;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:1rem;
  font-size:0.82rem; color: rgba(255,255,255,0.5);
}

/* ---------- Root language splash ---------- */
.lang-splash{
  min-height:100vh; display:flex; flex-direction:column; align-items:center; justify-content:center;
  background: var(--c-primary); color:var(--c-white); text-align:center; padding:2rem;
}
.lang-splash img{ height:52px; margin-bottom:2.5rem; }
.lang-splash-grid{ display:flex; gap:1rem; flex-wrap:wrap; justify-content:center; margin-top:2rem; }
.lang-splash-grid a{
  border:1.5px solid rgba(255,255,255,0.5); padding:0.9em 1.8em; text-decoration:none; color:var(--c-white);
  font-family: var(--font-display); font-size:0.85rem; letter-spacing:0.08em; border-radius: var(--radius);
}
.lang-splash-grid a:hover{ background: var(--c-white); color: var(--c-primary); }

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  .grid-3, .pricing-grid{ grid-template-columns: 1fr; }
  .grid-2{ grid-template-columns:1fr; }
  .contact-layout{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .form-grid{ grid-template-columns:1fr; }
}
@media (max-width: 720px){
  .main-nav{
    position:fixed; inset: 84px 0 0 0; background:var(--c-white);
    flex-direction:column; align-items:flex-start; padding:2rem 1.5rem; gap:2rem;
    transform: translateX(100%); transition: transform .22s ease;
    overflow-y:auto;
  }
  .main-nav.is-open{ transform: translateX(0); }
  .main-nav ul{ flex-direction:column; gap:1.4rem; width:100%; }
  .main-nav a{ font-size:1.1rem; }
  .nav-toggle{
    display:flex; align-items:center; justify-content:center;
    width:40px; height:40px; border:1px solid var(--c-grey-line); background:none; border-radius:var(--radius);
  }
  .nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
    content:""; display:block; width:18px; height:2px; background:var(--c-primary); position:relative;
    transition: transform .2s ease, opacity .2s ease;
  }
  .nav-toggle span::before{ position:absolute; top:-6px; }
  .nav-toggle span::after{ position:absolute; top:6px; }
  .footer-grid{ grid-template-columns:1fr; }
}