/* ============================================================
   DPF GEORGIA — design tokens
   Concept: "diagnostic readout" — bracketed panels, hairline
   rules, a sequential process rendered as a real connected line
   (not decorative numbering), data set in a mono face because
   this business actually reads pressure/temperature/DTC values.
   ============================================================ */

:root {
  --bg:        #F7F6F1;
  --bg-panel:  #FFFFFF;
  --ink:       #16180F;
  --ink-soft:  #4B4E44;
  --line:      #DDD9CC;
  --green:     #4F9A2C;
  --green-deep:#22400F;
  --lime:      #A6D62B;
  --amber:     #C97A1E;

  --font-body: "Noto Sans Georgian", "Noto Sans", "Segoe UI", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "DejaVu Sans Mono", monospace;

  --measure: 62ch;
  --radius: 3px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--green-deep); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--green); }

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

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.measure { max-width: var(--measure); }

h1, h2, h3 {
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2rem, 4.2vw, 3.1rem); }
h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); }
h2.accent { border-bottom: 3px solid var(--accent); padding-bottom: 0.3em; display: inline-block; }
h3 { font-size: 1.2rem; }
p  { margin: 0 0 1.1em; }

.mono {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--ink-soft);
}

hr.rule {
  border: none;
  border-top: 1px solid var(--line);
  margin: 3rem 0;
}

/* ---------- header accent trim ---------- */
.site-header {
  border-bottom: none;
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 3px 0 0 var(--accent), 0 6px 12px -6px rgba(0,0,0,0.08);
}
:root { --accent: #1B3A6B; }
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
  gap: 20px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand img { height: 42px; width: 42px; }
.brand-word { font-weight: 700; font-size: 1.05rem; letter-spacing: -0.01em; }
.brand-word span { color: var(--green-deep); }

nav.main-nav { display: flex; gap: 26px; }
nav.main-nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.96rem;
}
nav.main-nav a:hover { color: var(--green-deep); }

/* services dropdown */
.nav-item-dropdown { position: relative; }
.nav-item-dropdown > a::after { content: " ▾"; font-size: 0.7em; color: var(--ink-soft); }
.nav-dropdown-panel {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  padding-top: 14px;
  background: transparent;
  z-index: 60;
}
.nav-dropdown-panel > .panel-inner {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-top: 3px solid var(--green-deep);
  width: max-content;
  box-shadow: 0 12px 24px rgba(0,0,0,0.08);
}
.nav-item-dropdown:hover .nav-dropdown-panel,
.nav-item-dropdown:focus-within .nav-dropdown-panel { display: block; }
.nav-dropdown-panel a {
  display: block;
  padding: 13px 20px;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
  white-space: nowrap;
}
.nav-dropdown-panel a:last-child { border-bottom: none; }
.nav-dropdown-panel a:hover { background: #FBFAF5; color: var(--green-deep); }

.header-cta {
  display: flex;
  gap: 10px;
  align-items: center;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius);
  font-size: 0.94rem;
  text-decoration: none;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary { background: var(--green-deep); color: #fff; border-left: 3px solid var(--accent); }
.btn-primary:hover { background: var(--green); color: #fff; }
.btn-ghost { border-color: var(--ink); color: var(--ink); }
.btn-ghost:hover { border-color: var(--green-deep); color: var(--green-deep); }

.nav-toggle { display: none; }

@media (max-width: 780px) {
  nav.main-nav { display: none; }
  .header-cta .btn-ghost { display: none; }
}

/* ---------- hero: bracketed readout panel ---------- */
.hero {
  padding: 64px 0 56px;
  border-bottom: 1px solid var(--line);
}
.hero-panel {
  position: relative;
  padding: 40px clamp(20px, 4vw, 56px);
  border: 1px solid var(--line);
  background: var(--bg-panel);
}
.hero-panel::before,
.hero-panel::after,
.hero-panel .tick-tl,
.hero-panel .tick-br {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid var(--green);
}
.hero-panel::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.hero-panel::after { bottom: -1px; right: -1px; border-left: none; border-top: none; }

.eyebrow-line {
  font-family: var(--font-mono);
  color: var(--green-deep);
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  margin-bottom: 18px;
}
.hero h1 { max-width: 22ch; }
.hero-sub {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 46ch;
  margin: 18px 0 26px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- services grid: hairline, not cards ---------- */
.section { padding: 60px 0; }
.section-head { max-width: 60ch; margin-bottom: 40px; }
.kicker {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-bottom: 8px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.service-cell {
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 30px 26px;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  min-height: 220px;
}
.service-cell:hover { background: #FBFAF5; }
.service-num { font-family: var(--font-mono); color: var(--green); font-size: 0.85rem; margin-bottom: 14px; }
.service-cell h3 { margin-bottom: 10px; }
.service-cell p { color: var(--ink-soft); font-size: 0.95rem; flex-grow: 1; }
.service-cell .go { font-family: var(--font-mono); font-size: 0.85rem; color: var(--green-deep); margin-top: 14px; }

@media (max-width: 900px) {
  .services-grid { grid-template-columns: 1fr; }
}

/* ---------- process: real vertical sequence ---------- */
.process-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 2px solid var(--green);
  max-width: 44ch;
}
.process-list li {
  position: relative;
  padding: 2px 0 26px 28px;
}
.process-list li::before {
  content: attr(data-step);
  font-family: var(--font-mono);
  position: absolute;
  left: -14px;
  top: 0;
  background: var(--bg);
  color: var(--green-deep);
  font-size: 0.8rem;
  width: 26px;
  text-align: center;
}
.process-list li strong { display: block; margin-bottom: 2px; }
.process-list li span { color: var(--ink-soft); font-size: 0.93rem; }

/* ---------- why-us: plain list, no icon cards ---------- */
.reasons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px 40px;
}
.reasons li { list-style: none; padding-left: 20px; border-left: 2px solid var(--line); }
.reasons li strong { display: block; margin-bottom: 4px; }
.reasons li span { color: var(--ink-soft); font-size: 0.94rem; }
@media (max-width: 700px) { .reasons { grid-template-columns: 1fr; } }

/* ---------- dark contact band ---------- */
.contact-band {
  background: var(--green-deep);
  color: #F3F2E9;
  padding: 56px 0;
}
.contact-band h2 { color: #fff; }
.contact-band a { color: #fff; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 28px;
  margin-top: 28px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
}
.contact-grid .label { color: #B9D8A6; font-size: 0.8rem; display: block; margin-bottom: 6px; }
@media (max-width: 780px) { .contact-grid { grid-template-columns: 1fr; } }

/* ---------- articles ---------- */
.article-list { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.article-card { background: var(--bg-panel); padding: 24px; text-decoration: none; color: var(--ink); }
.article-card:hover { background: #FBFAF5; }
.article-card .kicker { margin-bottom: 10px; }
.article-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.article-card p { color: var(--ink-soft); font-size: 0.9rem; margin: 0; }
@media (max-width: 700px) { .article-list { grid-template-columns: 1fr; } }

.article-body { max-width: var(--measure); }
.article-body h2 { margin-top: 2em; }
.article-body h3 { margin-top: 1.6em; }
.article-meta { font-family: var(--font-mono); color: var(--ink-soft); font-size: 0.85rem; margin-bottom: 30px; }

.callout {
  border-left: 3px solid var(--amber);
  padding: 4px 20px;
  background: #FBF3E8;
  margin: 1.6em 0;
}
.callout strong { color: var(--amber); }

.breadcrumb { font-family: var(--font-mono); font-size: 0.82rem; color: var(--ink-soft); margin-bottom: 24px; }
.breadcrumb a { color: var(--ink-soft); }

/* ---------- placeholder notice (used sparingly, never "under construction") ---------- */
.notice {
  border: 1px dashed var(--line);
  padding: 18px 20px;
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin-top: 20px;
}

/* ---------- footer ---------- */
footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 40px 0;
  margin-top: 40px;
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  font-size: 0.92rem;
  color: var(--ink-soft);
}
.footer-grid a { color: var(--ink-soft); text-decoration: none; }
.footer-grid a:hover { color: var(--green-deep); }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }

/* ---------- before/after photo comparison ---------- */
.before-after {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin: 2em 0;
}
.before-after figure { margin: 0; position: relative; background: var(--bg-panel); }
.before-after img { width: 100%; height: 320px; object-fit: cover; display: block; }
.before-after figcaption {
  position: absolute; top: 12px; left: 12px;
  background: var(--ink); color: #fff;
  font-family: var(--font-mono); font-size: 0.78rem;
  padding: 5px 10px;
  letter-spacing: 0.02em;
}
.before-after figure.after figcaption { background: var(--green-deep); }
@media (max-width: 700px) {
  .before-after { grid-template-columns: 1fr; }
  .before-after img { height: 260px; }
}

/* ---------- hero side photo layout ---------- */
.hero-with-photo {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 0;
  border: 1px solid var(--line);
}
.hero-with-photo .hero-photo { position: relative; min-height: 320px; }
.hero-with-photo .hero-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
@media (max-width: 900px) {
  .hero-with-photo { grid-template-columns: 1fr; }
  .hero-with-photo .hero-photo { min-height: 220px; order: -1; }
}

/* ---------- photo strip ---------- */
.photo-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.photo-strip img { width: 100%; height: 280px; object-fit: cover; display: block; }
@media (max-width: 700px) { .photo-strip { grid-template-columns: 1fr; } }

/* ---------- hero: full-bleed background photo ---------- */
.hero-photo-bg {
  position: relative;
  padding: 90px 0 60px;
  background: linear-gradient(180deg, rgba(20,22,14,0.55), rgba(20,22,14,0.75)), url('/assets/photos/hero-bg.jpg') center/cover no-repeat;
  border-bottom: 3px solid var(--accent);
  color: #fff;
}
.hero-photo-bg .eyebrow-line { color: #BEEAA0; }
.hero-photo-bg h1 { color: #fff; max-width: 22ch; }
.hero-photo-bg .hero-sub { color: #E7E5D8; max-width: 46ch; margin: 18px 0 30px; font-size: 1.15rem; }

.service-tiles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 40px;
}
.service-tile {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.25);
}
.service-tile img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.3s ease; }
.service-tile:hover img { transform: scale(1.05); }
.service-tile .tile-caption {
  position: absolute; left: 0; right: 0; bottom: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0), rgba(0,0,0,0.82));
  color: #fff;
  padding: 30px 14px 14px;
  font-size: 0.92rem;
  font-weight: 700;
}
@media (max-width: 780px) {
  .service-tiles { grid-template-columns: 1fr; }
  .hero-photo-bg { padding: 50px 0 40px; }
}

/* ---------- services grid with background photos ---------- */
.services-grid.spaced {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  border: none;
}
.service-cell.with-bg {
  position: relative;
  border: 1px solid var(--line);
  overflow: hidden;
  min-height: 280px;
  color: #fff;
}
.service-cell.with-bg .bg-photo {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  filter: brightness(0.5);
  transition: filter 0.3s ease, transform 0.3s ease;
}
.service-cell.with-bg:hover .bg-photo { filter: brightness(0.38); transform: scale(1.04); }
.service-cell.with-bg .cell-content { position: relative; z-index: 2; display: flex; flex-direction: column; height: 100%; }
.service-cell.with-bg .service-num { color: #BEEAA0; }
.service-cell.with-bg h3 { color: #fff; }
.service-cell.with-bg p { color: #E7E5D8; }
.service-cell.with-bg .go { color: #BEEAA0; }
@media (max-width: 900px) { .services-grid.spaced { grid-template-columns: 1fr; } }

/* ---------- diagonal accent bar ---------- */
.accent-bar {
  height: 6px;
  background: linear-gradient(100deg, var(--lime) 0%, var(--lime) 45%, var(--green-deep) 45%, var(--green-deep) 100%);
}
h1 .accent-tick, h2 .accent-tick {
  display: inline-block;
  width: 10px; height: 10px;
  background: var(--lime);
  margin-right: 10px;
  transform: skewX(-15deg);
}

/* ---------- photo hero (new) ---------- */
.photo-hero {
  position: relative;
  min-height: 460px;
  display: flex;
  align-items: center;
  color: #fff;
  background-size: cover;
  background-position: center;
}
.photo-hero::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(15,20,10,0.88) 0%, rgba(15,20,10,0.78) 40%, rgba(15,20,10,0.55) 100%);
}
.photo-hero .container { position: relative; z-index: 2; }
.photo-hero h1 { color: #fff; max-width: 22ch; }
.photo-hero .hero-sub { color: #E8E6DA; }

.service-tiles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 0;
  max-width: 1080px;
}
.service-tile {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 2px solid rgba(255,255,255,0.25);
  text-decoration: none;
  display: block;
}
.service-tile img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .3s; }
.service-tile:hover img { transform: scale(1.06); }
.service-tile .label {
  position: absolute; left: 0; right: 0; bottom: 0;
  background: linear-gradient(0deg, rgba(0,0,0,0.82), rgba(0,0,0,0));
  color: #fff;
  font-size: 0.78rem;
  padding: 22px 10px 10px;
  text-align: center;
  line-height: 1.25;
}
@media (max-width: 560px) {
  .service-tiles { max-width: 100%; }
  .service-tile .label { font-size: 0.68rem; padding: 16px 4px 8px; }
}

/* ---------- services grid with photo backgrounds ---------- */
.services-grid-photo {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.service-cell-photo {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  text-decoration: none;
  display: flex;
  align-items: flex-end;
  border: 1px solid var(--line);
}
.service-cell-photo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; transition: transform .3s; }
.service-cell-photo:hover img { transform: scale(1.05); }
.service-cell-photo::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(0deg, rgba(10,15,8,0.9) 0%, rgba(10,15,8,0.25) 55%, rgba(10,15,8,0.05) 100%);
}
.service-cell-photo .inner { position: relative; z-index: 2; padding: 22px; color: #fff; }
.service-cell-photo .service-num { color: var(--lime); }
.service-cell-photo h3 { color: #fff; margin-bottom: 6px; font-size: 1.05rem; }
.service-cell-photo p { color: #DCE3D4; font-size: 0.86rem; margin: 0; }
@media (max-width: 900px) {
  .services-grid-photo { grid-template-columns: 1fr; }
}

/* ---------- shared subpage background ---------- */
body.subpage {
  background-image: linear-gradient(rgba(247,246,241,0.94), rgba(247,246,241,0.94)), url('/assets/photos/subpage-bg.jpg');
  background-size: cover;
  background-attachment: fixed;
  background-position: center;
}

/* ---------- split layout: text + side photo ---------- */
.split-photo {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: start;
}
.split-photo .side-photo {
  position: sticky;
  top: 100px;
  border: 1px solid var(--line);
  overflow: hidden;
}
.split-photo .side-photo img { width: 100%; display: block; }
@media (max-width: 900px) {
  .split-photo { grid-template-columns: 1fr; }
  .split-photo .side-photo { position: static; order: -1; max-height: 320px; }
  .split-photo .side-photo img { height: 100%; object-fit: cover; }
}

/* ---------- closing green band (reusable on every page) ---------- */
.closing-band {
  background: var(--green-deep);
  color: #F3F2E9;
  padding: 40px 0;
  text-align: center;
  margin-top: 20px;
}
.closing-band p { color: #D9E8CE; margin: 6px 0 0; }
.closing-band h2 { color: #fff; margin: 0; }

/* ---------- knowledge base hub ---------- */
.kb-hub {
  position: relative;
  max-width: 1000px;
  height: 560px;
  margin: 0 auto;
}
.kb-hub .kb-center-img {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%,-50%);
  max-width: 300px;
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--line);
}
.kb-orbit {
  position: absolute;
  inset: 0;
}
.kb-link {
  position: absolute;
  transform: translate(-50%,-50%);
  text-decoration: none;
  color: var(--green-deep);
  font-weight: 700;
  font-size: 0.92rem;
  text-align: center;
  max-width: 160px;
  line-height: 1.3;
}
.kb-link:hover { color: var(--green); text-decoration: underline; }
.kb-link .kicker { font-weight: 400; margin-bottom: 4px; }
@media (max-width: 900px) {
  .kb-hub { height: auto; max-width: 100%; }
  .kb-hub .kb-center-img { position: static; transform: none; display: block; margin: 0 auto 30px; max-width: 220px; }
  .kb-orbit { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
  .kb-link { position: static !important; transform: none !important; max-width: none; }
}

/* ---------- mobile bar ---------- */
.mobile-bar {
  display: none;
}
@media (max-width: 780px) {
  .mobile-bar {
    display: flex;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: var(--bg-panel);
    border-top: 1px solid var(--line);
    z-index: 60;
  }
  .mobile-bar a {
    flex: 1;
    text-align: center;
    padding: 13px 0;
    font-size: 0.85rem;
    text-decoration: none;
    color: var(--ink);
    border-right: 1px solid var(--line);
  }
  .mobile-bar a:last-child { border-right: none; }
  .mobile-bar a.primary { background: var(--green-deep); color: #fff; }
  body { padding-bottom: 52px; }
}