/* ═══════════════════════════════════════════════════════════════
   DK Montage-Service – Demo 02
   Designsprache: Architektur-Editorial × Premium-Handwerk
   Schriften: Playfair Display (Display) + Inter (UI/Body)
   ═══════════════════════════════════════════════════════════════ */

/* ── Design Tokens ─────────────────────────────────────────────── */
:root {
  --chalk:      #F6F4F0;
  --stone:      #ECEAE4;
  --stone-mid:  #DDD9D1;
  --border:     #D2CEC7;
  --ink:        #1B1B18;
  --ink-mid:    #3A3935;
  --ink-light:  #87837B;
  --olive:      #4B5340;
  --wa:         #1a7a4d;
  --white:      #ffffff;

  --f-display:  'Playfair Display', Georgia, serif;
  --f-body:     'Inter', system-ui, sans-serif;

  --max-w:      1280px;
  --pad-x:      clamp(20px, 6vw, 88px);

  --ease:       cubic-bezier(.22,.68,0,1.2);
  --ease-out:   cubic-bezier(.25,.46,.45,.94);

  --radius-sm:  4px;
  --radius:     8px;
}

/* ── Reset ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--chalk);
  -webkit-font-smoothing: antialiased;
}
img, picture { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* ── Skip link ─────────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  padding: 8px 16px;
  background: var(--ink);
  color: var(--white);
  font-size: 14px;
  border-radius: var(--radius-sm);
  z-index: 9999;
  transition: top .2s;
}
.skip-link:focus { top: 16px; }

/* ── Eyebrow label ─────────────────────────────────────────────── */
.eyebrow {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--olive);
  margin-bottom: 18px;
}

/* ── Section body text ─────────────────────────────────────────── */
.section-body {
  font-size: clamp(16px, 1.2vw, 18px);
  color: var(--ink-light);
  line-height: 1.7;
  max-width: 560px;
}
.section-body.narrow { max-width: 440px; }

/* ── Container ─────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

/* ── Reveal animations ─────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s var(--ease-out), transform .65s var(--ease-out);
}
.reveal.visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: .12s; }
.reveal-delay-2 { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ═══════════════════════════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════════════════════════ */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  transition: background .3s, border-color .3s, padding .3s;
  background: transparent;
  border-bottom: 1px solid transparent;
}
#header.scrolled {
  background: rgba(246,244,240,.97);
  border-bottom-color: var(--border);
  backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  max-width: var(--max-w);
  margin-inline: auto;
  padding: 22px var(--pad-x);
  transition: padding .3s;
}
#header.scrolled .header-inner { padding-top: 14px; padding-bottom: 14px; }

/* Logo */
.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  font-family: var(--f-display);
  font-size: 26px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -.02em;
  line-height: 1;
  background: var(--ink);
  color: var(--white);
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 2px;
  flex-shrink: 0;
}
.logo-text { display: flex; flex-direction: column; }
.logo-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.2;
}
.logo-sub {
  font-size: 11px;
  color: var(--ink-light);
  line-height: 1.2;
}

/* Nav links */
.header-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
}
.header-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-mid);
  transition: color .2s;
  white-space: nowrap;
}
.header-nav a:hover { color: var(--olive); }

/* CTA */
.header-cta {
  flex-shrink: 0;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  background: var(--ink);
  border-radius: var(--radius-sm);
  transition: background .2s, opacity .2s;
  white-space: nowrap;
}
.header-cta:hover { opacity: .85; }

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  padding: 4px;
  margin-left: auto;
}
.burger {
  display: block;
  height: 1.5px;
  background: var(--ink);
  border-radius: 1px;
  transition: transform .3s, opacity .3s;
}
.nav-toggle.open .burger:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open .burger:nth-child(2) { opacity: 0; }
.nav-toggle.open .burger:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0;
  background: var(--chalk);
  border-top: 1px solid var(--border);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  display: block;
  padding: 14px var(--pad-x);
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid var(--border);
  transition: background .15s;
}
.mobile-menu a:hover { background: var(--stone); }
.mobile-cta {
  margin: 16px var(--pad-x) 20px;
  display: inline-block !important;
  padding: 12px 20px !important;
  background: var(--ink) !important;
  color: var(--white) !important;
  border-radius: var(--radius-sm);
  text-align: center;
  border-bottom: none !important;
}

/* ═══════════════════════════════════════════════════════════════
   HERO – Split Layout
   ═══════════════════════════════════════════════════════════════ */
#hero {
  display: grid;
  grid-template-columns: 5fr 7fr;
  min-height: 100svh;
  min-height: 100vh;
}

/* Left: dark text panel */
.hero-text-panel {
  background: var(--ink);
  display: flex;
  align-items: center;
  padding: clamp(100px, 12vh, 140px) var(--pad-x) clamp(60px, 8vh, 100px);
  position: relative;
  z-index: 1;
}

.hero-text-inner {
  width: 100%;
  max-width: 480px;
  text-align: left;
}

.hero-text-panel .eyebrow { color: var(--stone-mid); }

#hero h1 {
  font-family: var(--f-display);
  font-size: clamp(44px, 4.2vw, 68px);
  font-weight: 500;
  font-style: italic;
  line-height: 1.06;
  letter-spacing: -.025em;
  color: var(--white);
  margin-bottom: 24px;
}

.hero-body {
  font-size: clamp(15px, 1.1vw, 17px);
  color: rgba(255,255,255,.7);
  line-height: 1.65;
  max-width: 400px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

/* Primary button */
.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 14px 26px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  background: var(--chalk);
  border-radius: var(--radius-sm);
  transition: background .2s, transform .2s;
}
.btn-primary:hover { background: var(--stone); transform: translateY(-1px); }

/* Ghost button */
.btn-ghost {
  display: inline-flex;
  align-items: center;
  padding: 14px 26px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,.8);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: var(--radius-sm);
  transition: color .2s, border-color .2s;
}
.btn-ghost:hover { color: var(--white); border-color: rgba(255,255,255,.6); }

/* Hero trust line */
.hero-trust-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.15);
}
.htl-stars { color: #F4B400; font-size: 13px; letter-spacing: .1em; }
.htl-score { font-size: 13px; font-weight: 600; color: rgba(255,255,255,.9); }
.htl-sep { color: rgba(255,255,255,.3); font-size: 13px; }
.htl-count { font-size: 13px; color: rgba(255,255,255,.55); }

/* Right: image panel */
.hero-image-panel {
  position: relative;
  overflow: hidden;
  background: var(--stone-mid);
}
.hero-image-panel img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 55% center;
  transition: transform 6s ease;
}
.hero-image-panel:hover img { transform: scale(1.02); }

/* ═══════════════════════════════════════════════════════════════
   TRUST BAR
   ═══════════════════════════════════════════════════════════════ */
#trust-bar {
  background: var(--stone);
  border-bottom: 1px solid var(--border);
  padding: 16px var(--pad-x);
}
.trust-bar-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 0;
  max-width: var(--max-w);
  margin-inline: auto;
}
.tb-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--ink-light);
  padding: 4px 24px 4px 0;
}
.tb-item:last-child { padding-right: 0; }
.tb-icon { color: var(--olive); font-weight: 700; }
.tb-divider {
  width: 1px;
  height: 16px;
  background: var(--border);
  margin-right: 24px;
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════════════
   SPECIALIZATION
   ═══════════════════════════════════════════════════════════════ */
#specialization {
  background: var(--white);
  padding: clamp(80px, 10vh, 130px) 0;
  overflow: hidden;
}
.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px 80px;
  align-items: center;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}
.spec-text h2 {
  font-family: var(--f-display);
  font-size: clamp(36px, 3.4vw, 54px);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--ink);
  margin-bottom: 20px;
}
.spec-text .section-body { margin-bottom: 32px; }

.spec-systems {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}
.sys-tag {
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--olive);
  border: 1.5px solid currentColor;
  border-radius: 2px;
}

.spec-note {
  font-size: 14px;
  color: var(--ink-light);
  line-height: 1.6;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.spec-image {
  position: relative;
  aspect-ratio: 9 / 11;
  overflow: hidden;
  border-radius: var(--radius-sm);
}
.spec-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform .5s var(--ease-out);
}
.spec-image:hover img { transform: scale(1.03); }

/* ═══════════════════════════════════════════════════════════════
   PROJECTS
   ═══════════════════════════════════════════════════════════════ */
#projects {
  background: var(--stone);
  padding: clamp(80px, 10vh, 130px) 0;
}
.projects-header {
  text-align: left;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
  margin-bottom: 52px;
}
.projects-header h2 {
  font-family: var(--f-display);
  font-size: clamp(32px, 2.8vw, 48px);
  font-weight: 500;
  letter-spacing: -.02em;
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 14px;
}

.projects-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  grid-template-rows: auto;
  align-items: start;
  gap: 16px;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}
.project-item {
  overflow: hidden;
  position: relative;
  border-radius: var(--radius-sm);
  background: var(--stone-mid);
}
.project-item--large { grid-row: 1; grid-column: 1; }
.project-item--secondary { grid-row: 1; grid-column: 2; }

.project-img-wrap {
  overflow: hidden;
  position: relative;
  height: clamp(360px, 38vw, 520px);
}
.project-img-wrap picture { display: block; width: 100%; height: 100%; }

.project-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .5s var(--ease-out);
}
.project-item:hover .project-img-wrap img { transform: scale(1.04); }

.project-caption {
  padding: 16px 20px;
  background: var(--white);
}
.project-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--olive);
  margin-bottom: 4px;
}
.project-caption p {
  font-size: 14px;
  color: var(--ink-light);
  line-height: 1.5;
}

/* ═══════════════════════════════════════════════════════════════
   SERVICES
   ═══════════════════════════════════════════════════════════════ */
#services {
  background: var(--chalk);
  padding: clamp(80px, 10vh, 130px) 0;
}
.services-inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 60px 80px;
  align-items: start;
}
.services-head h2 {
  font-family: var(--f-display);
  font-size: clamp(30px, 2.6vw, 44px);
  font-weight: 500;
  letter-spacing: -.02em;
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 0;
  position: sticky;
  top: 100px;
}

.services-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}
.service-group {
  display: flex;
  gap: 20px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
}
.service-group:nth-child(odd) { border-right: 1px solid var(--border); padding-right: 32px; }
.service-group:nth-child(even) { padding-left: 32px; }
.service-group:nth-last-child(-n+2) { border-bottom: none; }

.sg-number {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--stone-mid);
  padding-top: 4px;
  flex-shrink: 0;
  width: 28px;
}
.sg-content h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
  line-height: 1.3;
}
.sg-content ul { display: flex; flex-direction: column; gap: 8px; }
.sg-content li {
  font-size: 14px;
  color: var(--ink-light);
  line-height: 1.5;
  padding-left: 12px;
  position: relative;
}
.sg-content li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 4px; height: 1px;
  background: var(--border);
}

/* ═══════════════════════════════════════════════════════════════
   MANUFACTURERS
   ═══════════════════════════════════════════════════════════════ */
#manufacturers {
  background: var(--ink);
  padding: 20px var(--pad-x);
}
.manufacturers-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 20px;
  max-width: var(--max-w);
  margin-inline: auto;
}
.mfr-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.4);
  white-space: nowrap;
  padding-right: 8px;
  border-right: 1px solid rgba(255,255,255,.12);
}
.mfr-list {
  font-size: 13px;
  color: rgba(255,255,255,.55);
  line-height: 1.8;
}

/* ═══════════════════════════════════════════════════════════════
   PROCESS
   ═══════════════════════════════════════════════════════════════ */
#process {
  background: var(--chalk);
  padding: clamp(80px, 10vh, 130px) 0;
}
.process-head {
  margin-bottom: 60px;
}
.process-head h2 {
  font-family: var(--f-display);
  font-size: clamp(30px, 2.6vw, 44px);
  font-weight: 500;
  letter-spacing: -.02em;
  line-height: 1.15;
  color: var(--ink);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
}
/* Connecting line */
.process-steps::before {
  content: '';
  position: absolute;
  top: 19px;
  left: 0; right: 0;
  height: 1px;
  background: var(--border);
  z-index: 0;
}

.process-step {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 0 20px 0 0;
  position: relative;
  z-index: 1;
}
.process-step:last-child { padding-right: 0; }

.step-n {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  background: var(--chalk);
  border: 1px solid var(--border);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--ink-mid);
  flex-shrink: 0;
  position: relative;
}
.process-step.visible .step-n {
  background: var(--ink);
  color: var(--white);
  border-color: var(--ink);
  transition: background .4s .3s, color .4s .3s, border-color .4s .3s;
}

.step-body { padding-top: 8px; }
.step-body h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}
.step-body p {
  font-size: 13px;
  color: var(--ink-light);
  line-height: 1.55;
}

/* ═══════════════════════════════════════════════════════════════
   REVIEWS
   ═══════════════════════════════════════════════════════════════ */
#reviews {
  background: var(--ink);
  padding: clamp(80px, 10vh, 130px) 0;
}
.reviews-inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}
.reviews-head {
  margin-bottom: 56px;
}
.reviews-head .eyebrow { color: var(--stone-mid); }
.reviews-head h2 {
  font-family: var(--f-display);
  font-size: clamp(32px, 3vw, 50px);
  font-weight: 500;
  font-style: italic;
  letter-spacing: -.02em;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 20px;
}

.reviews-score-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.rsl-stars { color: #F4B400; font-size: 14px; letter-spacing: .08em; }
.rsl-text { font-size: 14px; color: rgba(255,255,255,.55); }
.rsl-link {
  font-size: 14px;
  color: rgba(255,255,255,.75);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.rsl-link:hover { color: var(--white); }

/* Reviews grid */
.reviews-grid {
  display: grid;
  grid-template-columns: 5fr 4fr;
  gap: 32px;
  align-items: start;
}

.review {
  padding: 36px 40px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-sm);
}
.review--featured {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.16);
}
.review-quote {
  font-family: var(--f-display);
  font-size: clamp(16px, 1.4vw, 20px);
  font-style: italic;
  color: rgba(255,255,255,.9);
  line-height: 1.6;
  margin-bottom: 24px;
}
.review-footer {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.review-author {
  font-size: 14px;
  font-weight: 600;
  font-style: normal;
  color: var(--white);
}
.review-meta {
  font-size: 12px;
  color: rgba(255,255,255,.4);
}

.reviews-secondary {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ═══════════════════════════════════════════════════════════════
   ABOUT
   ═══════════════════════════════════════════════════════════════ */
#about {
  background: var(--stone);
  padding: clamp(80px, 10vh, 130px) 0;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 60px 80px;
  align-items: start;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}
.about-image {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--stone-mid);
}
.about-image picture { display: block; width: 100%; height: 100%; }
.about-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center top;
}

.about-text h2 {
  font-family: var(--f-display);
  font-size: clamp(32px, 3vw, 48px);
  font-weight: 500;
  letter-spacing: -.025em;
  line-height: 1.1;
  color: var(--ink);
  margin-bottom: 24px;
}
.about-text p {
  font-size: 16px;
  color: var(--ink-light);
  line-height: 1.7;
  margin-bottom: 16px;
  max-width: 540px;
}

.about-qualifications {
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.about-qualifications h3 {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-light);
  margin-bottom: 16px;
}
.qual-list { display: flex; flex-direction: column; gap: 10px; }
.qual-list li {
  font-size: 14px;
  color: var(--ink-mid);
  line-height: 1.5;
  padding-left: 16px;
  position: relative;
}
.qual-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 1px;
  background: var(--olive);
}

.about-contact-link {
  display: inline-block;
  margin-top: 32px;
  font-size: 15px;
  font-weight: 600;
  color: var(--olive);
  transition: opacity .2s;
}
.about-contact-link:hover { opacity: .7; }

/* ═══════════════════════════════════════════════════════════════
   CONTACT
   ═══════════════════════════════════════════════════════════════ */
#contact {
  background: var(--chalk);
  padding: clamp(80px, 10vh, 130px) 0;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px 100px;
  align-items: start;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.contact-text h2 {
  font-family: var(--f-display);
  font-size: clamp(36px, 3.2vw, 56px);
  font-weight: 500;
  letter-spacing: -.025em;
  line-height: 1.1;
  color: var(--ink);
  margin-bottom: 20px;
}
.contact-body {
  font-size: 16px;
  color: var(--ink-light);
  line-height: 1.7;
  max-width: 380px;
  margin-bottom: 40px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-detail {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 8px;
  align-items: baseline;
}
.cd-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-light);
  padding-top: 2px;
}
.cd-value {
  font-size: 15px;
  color: var(--ink-mid);
  line-height: 1.5;
}
a.cd-value:hover { color: var(--olive); }

/* WhatsApp button */
.contact-wa-btn {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: var(--wa);
  border-radius: var(--radius);
  color: var(--white);
  transition: opacity .2s, transform .2s;
  margin-bottom: 24px;
}
.contact-wa-btn:hover { opacity: .9; transform: translateY(-2px); }
.wa-icon { flex-shrink: 0; }
.wa-text { display: flex; flex-direction: column; }
.wa-text strong { font-size: 16px; font-weight: 600; }
.wa-hint { font-size: 13px; opacity: .8; }

.contact-or {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.contact-or::before,
.contact-or::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}
.contact-or span {
  font-size: 12px;
  color: var(--ink-light);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.contact-alt-links {
  display: flex;
  flex-direction: column;
  gap: 1px;
  margin-bottom: 24px;
}
.alt-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  background: var(--stone);
  border-radius: var(--radius-sm);
  transition: background .15s;
}
.alt-link:hover { background: var(--stone-mid); }
.alt-link-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-mid);
}
.alt-link-value {
  font-size: 14px;
  color: var(--ink-light);
}

.contact-hint {
  font-size: 13px;
  color: var(--ink-light);
  line-height: 1.6;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */
#footer {
  background: var(--ink-mid);
  padding: clamp(48px, 6vh, 72px) 0 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px 48px;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer-brand .footer-logo-mark {
  font-family: var(--f-display);
  font-size: 24px;
  font-weight: 500;
  color: var(--white);
  display: inline-block;
  background: rgba(255,255,255,.1);
  width: 40px; height: 40px;
  line-height: 40px;
  text-align: center;
  border-radius: 2px;
  margin-bottom: 8px;
}
.footer-logo-name {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 6px;
}
.footer-tagline {
  font-size: 13px;
  color: rgba(255,255,255,.4);
}

.footer-col h4 {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.35);
  margin-bottom: 16px;
}
.footer-col p,
.footer-col li,
.footer-col a {
  font-size: 13.5px;
  color: rgba(255,255,255,.6);
  line-height: 1.9;
  display: block;
}
.footer-col a:hover { color: var(--white); }
.footer-col ul { display: flex; flex-direction: column; }

.footer-bottom {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding: 20px var(--pad-x);
  max-width: var(--max-w);
  margin-inline: auto;
}
.footer-bottom span,
.footer-bottom a {
  font-size: 12px;
  color: rgba(255,255,255,.35);
}
.footer-bottom a:hover { color: rgba(255,255,255,.7); }
.footer-sep { color: rgba(255,255,255,.15) !important; }

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE – 1100px
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 1100px) {
  .header-nav { gap: 20px; }
  .header-nav a { font-size: 13.5px; }

  .services-inner { grid-template-columns: 1fr; }
  .services-head h2 { position: static; margin-bottom: 32px; }

  .footer-inner { grid-template-columns: 1fr 1fr; }
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE – 900px (tablet)
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .header-nav,
  .header-cta { display: none; }
  .nav-toggle { display: flex; }

  /* Hero: stack on tablet */
  #hero {
    grid-template-columns: 1fr;
    grid-template-rows: auto 55vw;
    min-height: unset;
  }
  .hero-text-panel {
    padding: 100px 32px 48px;
    align-items: flex-start;
  }
  .hero-text-inner { max-width: 100%; }
  #hero h1 { font-size: clamp(40px, 7vw, 62px); }
  .hero-image-panel { min-height: 55vw; }
  .hero-image-panel img { position: absolute; }

  .spec-grid { grid-template-columns: 1fr; }
  .spec-image { max-width: 480px; aspect-ratio: 4 / 3; }

  .projects-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  .project-item--large,
  .project-item--secondary { grid-column: 1; grid-row: auto; }

  .process-steps { grid-template-columns: 1fr 1fr; gap: 32px; }
  .process-steps::before { display: none; }

  .reviews-grid { grid-template-columns: 1fr; }

  .about-grid { grid-template-columns: 1fr; }
  .about-image { max-width: 380px; }

  .contact-grid { grid-template-columns: 1fr; gap: 48px; }

  .footer-inner { grid-template-columns: 1fr 1fr; }
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE – 600px (mobile)
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 600px) {
  :root { --pad-x: 20px; }

  #hero {
    grid-template-rows: auto 72vw;
  }
  .hero-text-panel { padding: 90px 20px 40px; }
  #hero h1 { font-size: clamp(34px, 9vw, 48px); }
  .hero-body { font-size: 15px; }
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-ghost { width: 100%; justify-content: center; }

  .services-body { grid-template-columns: 1fr; }
  .service-group { border-right: none !important; padding-right: 0 !important; padding-left: 0 !important; }
  .service-group:nth-last-child(1) { border-bottom: none; }

  .process-steps { grid-template-columns: 1fr; }

  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 6px; }

  .contact-detail { grid-template-columns: 90px 1fr; }

  .tb-divider { display: none; }
  .tb-item { padding: 4px 0; width: 100%; }

  .manufacturers-inner { flex-direction: column; align-items: flex-start; }
  .mfr-label { border-right: none; padding-right: 0; }

  .reviews-grid { grid-template-columns: 1fr; }
  .review { padding: 24px; }
}