/* =========================================================
   AB&J Engineering Works — Design System
   Palette drawn directly from the company mark:
   navy / engineering red / charcoal / steel gray
   ========================================================= */

:root{
  --navy: #0b2545;
  --navy-deep: #071a33;
  --red: #c4161c;
  --red-deep: #9c0f14;
  --charcoal: #1b1b1e;
  --steel: #8a94a6;
  --steel-light: #c7ceda;
  --paper: #f7f8fa;
  --panel-tint: #eef1f6;
  --white: #ffffff;

  --font-head: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, sans-serif;

  --maxw: 1180px;
  --edge: clamp(20px, 5vw, 64px);

  --radius-sm: 3px;
  --radius-md: 5px;
}

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

html{ scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body{
  margin: 0;
  font-family: var(--font-body);
  color: var(--charcoal);
  background: var(--paper);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4{
  font-family: var(--font-head);
  color: var(--navy);
  margin: 0 0 0.5em;
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -0.01em;
}

p{ margin: 0 0 1em; max-width: 62ch; }
p:last-child{ margin-bottom: 0; }

a{ color: var(--red); text-decoration: none; }
a:hover{ text-decoration: underline; }

ul{ margin: 0; padding: 0; list-style: none; }

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

:focus-visible{
  outline: 3px solid var(--red);
  outline-offset: 2px;
}

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

.visually-hidden{
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ---------------------------------------------------------
   Buttons
   --------------------------------------------------------- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85em 1.5em;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  cursor: pointer;
  text-decoration: none !important;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease, transform 120ms ease;
}
.btn:active{ transform: translateY(1px); }

.btn-primary{
  background: var(--red);
  color: var(--white);
}
.btn-primary:hover{ background: var(--red-deep); }

.btn-outline{
  background: transparent;
  color: var(--navy);
  border-color: var(--steel-light);
}
.btn-outline:hover{ border-color: var(--navy); background: var(--panel-tint); }

.btn-outline-light{
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.45);
}
.btn-outline-light:hover{ border-color: var(--white); background: rgba(255,255,255,0.08); }

.btn-quote{
  background: transparent;
  color: var(--red);
  border-color: var(--red);
  font-size: 0.85rem;
  padding: 0.6em 1.15em;
}
.btn-quote:hover{ background: var(--red); color: var(--white); }

.btn-block{ width: 100%; justify-content: center; }

/* ---------------------------------------------------------
   Header / Navigation
   --------------------------------------------------------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid #e3e6ec;
}

.site-header .container{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}

.brand{
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--navy);
}
.brand img{ height: 44px; width: auto; }
.brand-name{
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.2;
  color: var(--navy);
}

.main-nav ul{
  display: flex;
  gap: 4px;
}
.main-nav a{
  color: var(--charcoal);
  font-weight: 500;
  font-size: 0.94rem;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}
.main-nav a:hover{ color: var(--navy); }
.main-nav a.active{
  color: var(--navy);
  border-bottom-color: var(--red);
  font-weight: 600;
}

.nav-toggle{
  display: none;
  background: none;
  border: 1.5px solid var(--steel-light);
  border-radius: var(--radius-sm);
  width: 42px;
  height: 42px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  background: var(--navy);
  position: relative;
  transition: transform 160ms ease, opacity 160ms ease;
}
.nav-toggle span::before{ position: absolute; top: -6px; }
.nav-toggle span::after{ position: absolute; top: 6px; }

@media (max-width: 860px){
  .nav-toggle{ display: inline-flex; }
  .main-nav{
    position: absolute;
    top: 76px; left: 0; right: 0;
    background: var(--white);
    border-bottom: 1px solid #e3e6ec;
    max-height: 0;
    overflow: hidden;
    transition: max-height 220ms ease;
  }
  .main-nav.open{ max-height: 420px; }
  .main-nav ul{ flex-direction: column; padding: 8px var(--edge) 18px; gap: 2px; }
  .main-nav a{ display: block; padding: 12px 8px; border-bottom: 1px solid #eef1f6; border-radius: 0; }
  .main-nav a.active{ border-bottom-color: var(--red); }
}

/* ---------------------------------------------------------
   View switching (tabs behave as routed views)
   --------------------------------------------------------- */
.view{ display: none; }
.view.active{ display: block; }

/* ---------------------------------------------------------
   Hero — faceted hexagon, echoing the brand mark
   --------------------------------------------------------- */
.hero{
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-deep) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.hero .container{
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  padding-top: 72px;
  padding-bottom: 72px;
  min-height: 520px;
}
.hero-kicker{
  color: var(--steel-light);
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 14px;
}
.hero h1{
  color: var(--white);
  font-size: clamp(1.95rem, 3.2vw, 2.65rem);
  max-width: 19ch;
}
.hero h1 em{
  font-style: normal;
  color: #ff5a5f;
}
.hero p.lead{
  color: #d4dae5;
  font-size: 1.1rem;
  max-width: 48ch;
  margin-bottom: 1.6em;
}
.hero-actions{ display: flex; gap: 14px; flex-wrap: wrap; }

/* --- Hero project showcase (rotating) --- */
.hero-showcase{ width: 100%; max-width: 560px; }

.showcase-frame{
  position: relative;
  aspect-ratio: 560 / 400;
  background: #071a33;
  border: 1px solid rgba(255,255,255,0.16);
  overflow: hidden;
}

/* Browsers without aspect-ratio (Safari < 15, Chrome < 88) would give the
   frame no height at all, hiding the showcase. Fall back to the padding
   ratio box; the slides inside are absolutely positioned either way. */
@supports not (aspect-ratio: 1 / 1){
  .showcase-frame{ padding-top: 71.4286%; }
}

.slide{
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 620ms ease;
}
.slide.active{ opacity: 1; visibility: visible; }

.slide-art{
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.slide-caption{
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 44px 22px 18px;
  background: linear-gradient(180deg, rgba(7,26,51,0) 0%, rgba(7,26,51,0.93) 58%);
}
.slide-caption h3{
  color: #fff;
  font-size: 1.02rem;
  margin: 0 0 3px;
  line-height: 1.3;
}
.slide-caption p{
  color: #b9c4d6;
  font-size: 0.86rem;
  margin: 0;
  max-width: none;
}

.status{
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 3px 9px;
  margin-bottom: 9px;
  color: #fff;
}
.status-ongoing{ background: var(--red); }
.status-done{ background: #1f7a4d; }

.showcase-arrow{
  position: absolute;
  top: 38%;
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(7,26,51,0.62);
  border: 1px solid rgba(255,255,255,0.22);
  cursor: pointer;
  opacity: 0;
  transition: opacity 200ms ease, background-color 160ms ease;
}
.showcase-arrow svg{
  width: 18px; height: 18px;
  fill: none; stroke: #fff; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
}
.showcase-arrow:hover{ background: var(--red); }
.showcase-arrow.prev{ left: 10px; }
.showcase-arrow.next{ right: 10px; }
.showcase-frame:hover .showcase-arrow,
.showcase-arrow:focus-visible{ opacity: 1; }

@media (hover: none){
  .showcase-arrow{ opacity: 1; }
}

.showcase-dots{
  display: flex;
  gap: 8px;
  margin-top: 16px;
}
.showcase-dots button{
  flex: 1;
  height: 3px;
  padding: 0;
  border: none;
  background: rgba(255,255,255,0.24);
  cursor: pointer;
  transition: background-color 220ms ease;
}
.showcase-dots button[aria-selected="true"]{ background: var(--red); }
.showcase-dots button:hover{ background: rgba(255,255,255,0.5); }

/* On touch devices the 3px bar is far too small to hit, so the button
   becomes a 28px target and the bar is drawn by a pseudo-element. */
@media (hover: none){
  .showcase-dots button{
    height: 28px;
    background: transparent;
    position: relative;
  }
  .showcase-dots button::after{
    content: "";
    position: absolute;
    left: 0; right: 0; top: 50%;
    height: 3px;
    margin-top: -1.5px;
    background: rgba(255,255,255,0.24);
  }
  .showcase-dots button[aria-selected="true"]{ background: transparent; }
  .showcase-dots button[aria-selected="true"]::after{ background: var(--red); }
}
.showcase-dots button[aria-selected="true"]:hover{ background: var(--red); }

@media (max-width: 960px){
  .hero .container{ grid-template-columns: 1fr; padding-top: 48px; padding-bottom: 44px; }
  .hero-showcase{ order: -1; margin: 0 auto 8px; }
  .hero h1{ max-width: 20ch; }
}

/* ---------------------------------------------------------
   Sections
   --------------------------------------------------------- */
.section{ padding: 84px 0; }
.section-tight{ padding: 56px 0; }
.section-alt{ background: var(--panel-tint); }
.section-dark{ background: var(--navy); color: var(--white); }
.section-dark h2, .section-dark h3{ color: var(--white); }
.section-dark p{ color: #cfd6e3; }

.section-head{ max-width: 640px; margin-bottom: 44px; }
.section-head h2{ font-size: clamp(1.6rem, 3vw, 2.1rem); }
.section-head p{ color: #4b5262; font-size: 1.05rem; }
.section-dark .section-head p{ color: #cfd6e3; }

/* ---------------------------------------------------------
   Service blocks — spec-sheet style, not rounded SaaS cards
   --------------------------------------------------------- */
.service-block{
  border-top: 1px solid #dfe3ea;
  padding: 34px 0;
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 28px;
  align-items: start;
}
.service-block:last-child{ border-bottom: 1px solid #dfe3ea; }

.service-icon{
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  background: var(--panel-tint);
  border-left: 3px solid var(--red);
}
.service-icon svg{
  width: 26px; height: 26px;
  fill: none;
  stroke: var(--navy);
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-body h3{ font-size: 1.2rem; margin-bottom: 6px; }
.service-body p{ color: #4b5262; }
.service-body ul{ margin-top: 10px; }
.service-body ul li{
  color: #4b5262;
  font-size: 0.95rem;
  padding: 4px 0 4px 18px;
  position: relative;
}
.service-body ul li::before{
  content: "";
  position: absolute; left: 0; top: 13px;
  width: 6px; height: 6px;
  background: var(--red);
}

/* Honeypot: off-screen for bots to find, never shown to people.
   display:none is avoided because some bots skip hidden inputs. */
.hp-field{
  position: absolute;
  left: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
}

#contact-status.status-error{ color: var(--red); }
#contact-status.status-ok{ color: #1f7a4d; }

.service-note{
  display: inline-block;
  margin: 2px 0 8px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--red);
  padding: 4px 11px;
}

.service-actions{ display: flex; align-items: center; }

@media (max-width: 760px){
  .service-block{ grid-template-columns: 44px 1fr; }
  .service-actions{ grid-column: 1 / -1; margin-top: 4px; }
  .service-icon{ width: 44px; height: 44px; }
}

.pv-highlight{
  margin-top: 40px;
  background: var(--navy);
  color: var(--white);
  padding: 36px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  border-left: 4px solid var(--red);
}
.pv-highlight h3{ color: var(--white); font-size: 1.3rem; margin-bottom: 8px; }
.pv-highlight p{ color: #cfd6e3; margin-bottom: 0; }
.pv-highlight .btn-actions{ display: flex; gap: 12px; flex-wrap: wrap; }

@media (max-width: 700px){
  .pv-highlight{ grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------
   Trust / projects band
   --------------------------------------------------------- */
.client-row{
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 44px;
}
.client-chip{
  border: 1px solid #dfe3ea;
  background: var(--white);
  padding: 10px 18px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--navy);
}

.project-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: #dfe3ea;
  border: 1px solid #dfe3ea;
}
.project-card{
  background: var(--white);
  padding: 28px;
}
.project-card .tag{
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--red);
  margin-bottom: 10px;
}
.project-card h4{ font-size: 1.05rem; margin-bottom: 4px; }
.project-card .client{ color: var(--steel); font-size: 0.88rem; margin-bottom: 12px; }
.project-card ul li{
  font-size: 0.92rem;
  color: #4b5262;
  padding: 3px 0 3px 16px;
  position: relative;
}
.project-card ul li::before{
  content: "";
  position: absolute; left: 0; top: 11px;
  width: 5px; height: 5px;
  background: var(--steel);
}
@media (max-width: 700px){
  .project-grid{ grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------
   About / Why us
   --------------------------------------------------------- */
.about-grid{
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: start;
}
.about-grid p{ color: #4b5262; }

/* Four practice areas on the home page. This was an inline
   grid-template-columns, which beat every media query and forced four
   columns onto phones. */
.capability-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: #dfe3ea;
  border: 1px solid #dfe3ea;
}
@media (max-width: 960px){
  .capability-grid{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px){
  .capability-grid{ grid-template-columns: 1fr; }
}

.why-panel{
  background: var(--navy);
  color: var(--white);
  padding: 36px;
  border-left: 4px solid var(--red);
}
.why-panel h3{ color: var(--white); font-size: 1.15rem; }
.why-panel p{ color: #cfd6e3; }

.fact-list{ margin-top: 28px; display: grid; gap: 18px; }
.fact-list .fact{ display: flex; gap: 14px; align-items: flex-start; }
.fact-list .fact .dot{
  width: 8px; height: 8px; margin-top: 8px; flex: none;
  background: var(--red);
}
.fact-list .fact strong{ color: var(--navy); display: block; font-size: 0.98rem; }
.fact-list .fact span{ color: #4b5262; font-size: 0.92rem; }

@media (max-width: 860px){
  .about-grid{ grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------
   FAQ — native disclosure
   --------------------------------------------------------- */
.faq-item{
  border-top: 1px solid #dfe3ea;
}
.faq-item:last-child{ border-bottom: 1px solid #dfe3ea; }
.faq-item summary{
  cursor: pointer;
  padding: 22px 0;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--navy);
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
}
.faq-item summary::-webkit-details-marker{ display: none; }
.faq-item summary::after{
  content: "+";
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--red);
  flex: none;
  margin-left: 16px;
}
.faq-item[open] summary::after{ content: "\2212"; }
.faq-item p{ padding-bottom: 22px; color: #4b5262; max-width: 68ch; }

/* ---------------------------------------------------------
   Contact
   --------------------------------------------------------- */
.contact-grid{
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
}
.contact-info h3{ font-size: 1.05rem; margin: 28px 0 6px; }
.contact-info h3:first-child{ margin-top: 0; }
.contact-info p{ color: #4b5262; }
.contact-info a{ color: var(--navy); font-weight: 600; }
.contact-info a:hover{ color: var(--red); }

.field{ margin-bottom: 18px; }
.field label{
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 6px;
}
.field input, .field select, .field textarea{
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.96rem;
  padding: 11px 14px;
  border: 1.5px solid #d5dae3;
  background: var(--white);
  border-radius: var(--radius-sm);
  color: var(--charcoal);
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline: none;
  border-color: var(--navy);
}
.field textarea{ resize: vertical; min-height: 120px; }
.form-row{ display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 600px){ .form-row{ grid-template-columns: 1fr; } }

.form-note{
  font-size: 0.85rem;
  color: var(--steel);
  margin-top: 14px;
}

#contact-status{
  margin-top: 14px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--red);
  display: none;
}
#contact-status.show{ display: block; }

@media (max-width: 860px){
  .contact-grid{ grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------
   Footer
   --------------------------------------------------------- */
.site-footer{
  background: var(--charcoal);
  color: #b7bcc6;
  padding: 48px 0 28px;
}
.footer-grid{
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.footer-brand .brand-name{ color: var(--white); }
.footer-brand p{ color: #9198a4; margin-top: 12px; font-size: 0.92rem; }
.site-footer h4{
  color: var(--white);
  font-size: 0.9rem;
  margin-bottom: 14px;
}
.site-footer ul li{ margin-bottom: 8px; font-size: 0.92rem; }
.site-footer a{ color: #b7bcc6; }
.site-footer a:hover{ color: var(--white); }
.footer-bottom{
  border-top: 1px solid #303237;
  padding-top: 20px;
  font-size: 0.82rem;
  color: #797f8b;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
@media (max-width: 700px){
  .footer-grid{ grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------
   PV Estimate page specific
   --------------------------------------------------------- */
.pv-back{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--steel-light);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 22px;
}
.pv-back:hover{ color: var(--white); }

.pv-hero{
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-deep) 100%);
  color: var(--white);
  padding: 56px 0 64px;
}
.pv-hero h1{ color: var(--white); font-size: clamp(1.9rem, 3.6vw, 2.6rem); max-width: 22ch; }
.pv-hero p.lead{ color: #d4dae5; max-width: 60ch; font-size: 1.08rem; }

.calc-panel{
  background: var(--white);
  border: 1px solid #dfe3ea;
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.calc-inputs, .calc-outputs{ padding: 36px; }
.calc-inputs{ border-right: 1px solid #dfe3ea; }
.calc-outputs{ background: var(--panel-tint); }
@media (max-width: 760px){
  .calc-panel{ grid-template-columns: 1fr; }
  .calc-inputs{ border-right: none; border-bottom: 1px solid #dfe3ea; }
}

.calc-inputs label{
  display: block; font-weight: 600; font-size: 0.9rem; color: var(--navy); margin-bottom: 10px;
}
.calc-inputs input[type="range"]{ width: 100%; accent-color: var(--red); }
.calc-value{
  font-family: var(--font-head); font-size: 2rem; color: var(--navy); font-weight: 700; margin: 6px 0 24px;
}
.calc-select{ margin-top: 22px; }
.calc-select select{
  width: 100%; padding: 11px 14px; border: 1.5px solid #d5dae3; border-radius: var(--radius-sm);
  font-family: var(--font-body); font-size: 0.95rem; background: var(--white);
}

.calc-out-row{
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 12px 0; border-bottom: 1px solid #dde1e8;
}
.calc-out-row:last-of-type{ border-bottom: none; }
.calc-out-row .k{ font-size: 0.92rem; color: #4b5262; }
.calc-out-row .v{ font-family: var(--font-head); font-weight: 700; color: var(--navy); font-size: 1.05rem; }
.calc-disclaimer{ font-size: 0.8rem; color: var(--steel); margin-top: 18px; }

.spec-table{
  width: 100%;
  border-collapse: collapse;
  margin-top: 18px;
}
.spec-table th, .spec-table td{
  text-align: left;
  padding: 13px 16px;
  border-bottom: 1px solid #dfe3ea;
  font-size: 0.92rem;
}
.spec-table th{
  font-family: var(--font-head);
  color: var(--navy);
  font-weight: 600;
  background: var(--panel-tint);
}
.spec-table td{ color: #4b5262; }
.spec-table-wrap{ overflow-x: auto; }

.process-steps{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: #dfe3ea;
  border: 1px solid #dfe3ea;
  margin-top: 18px;
}
.process-step{
  background: var(--white);
  padding: 24px 20px;
}
.process-step .num{
  font-family: var(--font-head);
  color: var(--red);
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 10px;
  display: block;
}
.process-step h4{ font-size: 0.98rem; margin-bottom: 6px; }
.process-step p{ font-size: 0.86rem; color: #4b5262; }
@media (max-width: 900px){
  .process-steps{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px){
  .process-steps{ grid-template-columns: 1fr; }
}

.warranty-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 18px;
}
.warranty-card{
  border-left: 3px solid var(--red);
  background: var(--panel-tint);
  padding: 22px;
}
.warranty-card .years{
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--navy);
}
.warranty-card p{ font-size: 0.9rem; color: #4b5262; margin-top: 6px; }
@media (max-width: 760px){
  .warranty-grid{ grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------
   Confirmation modal (contact form)
   --------------------------------------------------------- */
.modal{
  position: fixed;
  top: 0; right: 0; bottom: 0; left: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

/* display:flex above would otherwise beat the browser's [hidden] rule,
   leaving the dialog on screen permanently. */
.modal[hidden]{ display: none; }

.modal-backdrop{
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  background: rgba(7, 26, 51, 0.62);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
  animation: modal-fade 200ms ease both;
}

.modal-card{
  position: relative;
  width: 100%;
  max-width: 420px;
  background: var(--white);
  border-top: 3px solid var(--red);
  padding: 34px 32px 28px;
  text-align: center;
  box-shadow: 0 24px 60px rgba(7, 26, 51, 0.28);
  animation: modal-rise 240ms cubic-bezier(0.2, 0.8, 0.3, 1) both;
}

.modal-mark{
  width: 58px; height: 58px;
  margin: 0 auto 16px;
}
.modal-mark svg{
  width: 100%; height: 100%;
  fill: none;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.modal-mark .mark-ok{ stroke: #1f7a4d; }
.modal-mark .mark-err{ stroke: var(--red); }
.modal-mark circle{ opacity: 0.28; }

/* one mark at a time: success by default, error when flagged */
.modal-mark .mark-err{ display: none; }
.modal.is-error .modal-mark .mark-ok{ display: none; }
.modal.is-error .modal-mark .mark-err{ display: block; }
.modal.is-error .modal-card{ border-top-color: var(--red); }

.modal-card h3{
  font-family: var(--font-head);
  font-size: 1.22rem;
  color: var(--navy);
  margin: 0 0 8px;
}
.modal-card p{
  color: #4b5262;
  font-size: 0.95rem;
  margin: 0 0 22px;
}
.modal-card .btn{ min-width: 128px; }

@keyframes modal-fade{
  from{ opacity: 0; }
  to{ opacity: 1; }
}
@keyframes modal-rise{
  from{ opacity: 0; transform: translateY(14px) scale(0.98); }
  to{ opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce){
  .modal-backdrop, .modal-card{ animation: none; }
}