/* ============================================
   Delta Roofing Repairs Ltd
   Design System: "The Structural Vanguard"
   ============================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Brand */
  --primary:            #7F5600;
  --primary-container:  #FBB016;
  --primary-light:      #FFF3D6;
  --on-primary:         #1A1C1E;

  /* Surface hierarchy */
  --surface:                  #F9F9FC;
  --surface-container-low:    #F3F3F6;
  --surface-container:        #EEEEEF;
  --surface-container-high:   #E8E8EA;
  --surface-container-highest:#E2E2E5;
  --surface-dim:              #1A1C1E;

  /* Text */
  --on-background:   #1A1C1E;
  --on-surface:      #1A1C1E;
  --on-surface-var:  #44474B;
  --outline-var:     rgba(68,71,75,0.15);

  /* Misc */
  --white:      #ffffff;
  --radius:     12px;
  --radius-lg:  20px;
  --radius-pill:100px;
  --shadow-ambient: 0 20px 40px rgba(26,28,30,0.06);
  --transition: 0.22s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Manrope', sans-serif;
  font-size: 16px;
  color: var(--on-background);
  line-height: 1.6;
  background: var(--surface);
}

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

/* ============================================
   TYPOGRAPHY SCALE
   ============================================ */
.display-lg {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.4rem, 5.5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--on-background);
}
.display-md {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--on-background);
}
h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--on-background);
  margin-bottom: 10px;
}
p {
  font-size: 1rem;
  color: var(--on-surface-var);
  line-height: 1.75;
}

/* ============================================
   NAVIGATION — Glassmorphism
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(249,249,252,0.80);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--outline-var);
}
.navbar {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  height: 64px;
  gap: 8px;
}
.nav-logo { display: flex; align-items: center; text-decoration: none; flex-shrink: 0; margin-right: 32px; }
.logo-img { height: 44px; width: auto; object-fit: contain; }

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 2px;
  flex: 1;
  flex-wrap: nowrap;
}
.nav-link {
  display: block;
  padding: 7px 14px;
  text-decoration: none;
  color: var(--on-surface-var);
  font-size: 0.88rem;
  font-weight: 500;
  border-radius: var(--radius-pill);
  transition: var(--transition);
  white-space: nowrap;
  font-family: 'Manrope', sans-serif;
}
.nav-link:hover, .nav-link.active {
  color: var(--on-background);
  background: var(--surface-container);
}
.nav-cta {
  display: block;
  padding: 9px 22px;
  margin-left: auto;
  background: var(--primary-container);
  color: var(--on-primary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 700;
  border-radius: var(--radius-pill);
  transition: var(--transition);
  white-space: nowrap;
  font-family: 'Manrope', sans-serif;
  flex-shrink: 0;
}
.nav-cta:hover { background: var(--primary); color: var(--white); transform: scale(1.02); }

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius);
  margin-left: 8px;
}
.hamburger svg { width: 22px; height: 22px; color: var(--on-background); }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: flex-end;
  background-color: var(--surface-dim);
  overflow: hidden;
}
/* Background image on its own layer so we can brighten it independently */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../images/background-hd.jpg') center center / cover no-repeat;
  filter: brightness(2.4) saturate(0.9) contrast(0.85);
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(10,10,12,0.72) 0%, rgba(10,10,12,0.55) 40%, rgba(10,10,12,0.18) 75%, rgba(10,10,12,0.08) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 80px 28px 96px;
  color: var(--white);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(251,176,22,0.18);
  border: 1px solid rgba(251,176,22,0.35);
  color: var(--primary-container);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 28px;
}
.hero-badge svg { width: 12px; height: 12px; }

.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.6rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.025em;
  max-width: 640px;
  margin-bottom: 20px;
}
.hero-accent { color: var(--primary-container); }

.hero-desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.72);
  max-width: 500px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.92rem;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-family: 'Manrope', sans-serif;
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.btn:hover { transform: scale(1.02); box-shadow: var(--shadow-ambient); }

.btn-primary {
  background: var(--primary-container);
  color: var(--on-primary);
}
.btn-primary:hover { background: var(--primary); color: var(--white); }

.btn-ghost {
  background: rgba(255,255,255,0.10);
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.30);
  backdrop-filter: blur(4px);
}
.btn-ghost:hover { background: rgba(255,255,255,0.18); }

.btn-dark {
  background: var(--surface-dim);
  color: var(--white);
}
.btn-dark:hover { background: #2a2c2e; }

.btn-large { padding: 16px 32px; font-size: 1rem; width: 100%; }

/* ============================================
   SECTIONS
   ============================================ */
.section { padding: 96px 0; }
.surface              { background: var(--surface); }
.surface-container-low { background: var(--surface-container-low); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 28px; }

/* Section header */
.section-header { margin-bottom: 56px; }
.section-header.centered { text-align: center; }
.section-intro {
  font-size: 1rem;
  color: var(--on-surface-var);
  max-width: 560px;
  margin: 14px auto 0;
  line-height: 1.75;
}
.section-header.centered .section-intro { margin: 14px auto 0; }

/* Accent bar — replaces dividers */
.accent-bar {
  width: 4px;
  height: 32px;
  background: var(--primary-container);
  border-radius: 2px;
  margin-bottom: 18px;
}

/* ============================================
   WHY DELTA
   ============================================ */
.why-header { margin-bottom: 8px; }
.why-intro {
  font-size: 1rem;
  color: var(--on-surface-var);
  max-width: 560px;
  line-height: 1.75;
  margin-bottom: 48px;
}
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 16px;
}
.why-card {
  padding: 32px;
  border-radius: var(--radius-lg);
}
.why-card h3 { font-size: 1.25rem; margin-bottom: 12px; }
.why-card p { font-size: 0.93rem; }
.why-card-icon {
  width: 44px;
  height: 44px;
  background: var(--surface-container-highest);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.why-card-icon svg { width: 22px; height: 22px; color: var(--on-surface-var); }
.why-card-icon.accent { background: var(--primary-container); }
.why-card-icon.accent svg { color: var(--on-primary); }

.why-card-accent {
  background: var(--primary-container);
}
.why-card-accent h3, .why-card-accent p { color: var(--on-primary); }

.why-card-detail {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--on-primary);
  margin-top: 12px;
}
.why-card-detail svg { width: 15px; height: 15px; }

/* Stat chips */
.stat-chips {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}
.stat-chip {
  background: var(--surface-dim);
  border-radius: var(--radius);
  padding: 12px 18px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary-container);
  line-height: 1;
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.55);
}

/* Wide card — spans both columns */
.why-card-wide {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 40px;
  overflow: hidden;
  padding: 0;
}
.why-card-left {
  flex: 1;
  padding: 32px;
}
.why-card-left h3, .why-card-left p { }
.why-card-img {
  width: 340px;
  flex-shrink: 0;
}
.why-card-img img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

/* ============================================
   SPECIALTIES
   ============================================ */
.specialties-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 80px;
}
.specialty-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface-container-low);
  transition: var(--transition);
}
.specialty-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-ambient); }
.specialty-img {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}
.specialty-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}
.specialty-card:hover .specialty-img img { transform: scale(1.06); }
.specialty-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26,28,30,0.5) 0%, transparent 60%);
  transition: background var(--transition);
}
.specialty-card:hover .specialty-img-overlay {
  background: linear-gradient(to top, rgba(26,28,30,0.5) 0%, rgba(251,176,22,0.18) 100%);
}
.specialty-body { padding: 24px; }
.specialty-icon {
  width: 36px;
  height: 36px;
  background: var(--primary-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.specialty-icon svg { width: 18px; height: 18px; color: var(--primary); }
.specialty-body h3 { font-size: 1.1rem; margin-bottom: 8px; }
.specialty-body p { font-size: 0.88rem; line-height: 1.65; }

.learn-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}
.learn-more svg { width: 14px; height: 14px; transition: transform var(--transition); }
.learn-more:hover { color: var(--on-background); }
.learn-more:hover svg { transform: translateX(4px); }

/* ============================================
   SERVICE DETAIL BLOCKS
   ============================================ */
.service-details { display: flex; flex-direction: column; gap: 72px; }
.service-detail-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.service-detail-reverse { direction: rtl; }
.service-detail-reverse > * { direction: ltr; }

.service-detail-text p {
  font-size: 0.94rem;
  color: var(--on-surface-var);
  line-height: 1.78;
  margin-bottom: 14px;
}
.service-list {
  list-style: none;
  margin: 20px 0 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.service-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--on-background);
}
.service-list li svg { width: 16px; height: 16px; color: var(--primary-container); flex-shrink: 0; }

.service-detail-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-ambient);
}
.service-detail-img img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  display: block;
}

/* ============================================
   GALLERY
   ============================================ */
.gallery-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 12px;
}
.gallery-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--on-surface-var);
}
.gallery-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.gallery-tab {
  padding: 8px 22px;
  background: var(--surface-container);
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--on-surface-var);
  transition: var(--transition);
  font-family: 'Manrope', sans-serif;
}
.gallery-tab.active, .gallery-tab:hover {
  background: var(--surface-dim);
  color: var(--white);
}

/* Masonry-inspired gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: auto;
  gap: 10px;
}
.gallery-grid.hidden { display: none; }

.gallery-item {
  position: relative;
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface-container);
  aspect-ratio: 1;
}
.gallery-item-featured {
  grid-column: span 2;
  grid-row: span 2;
  aspect-ratio: unset;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
  display: block;
}
.gallery-item:hover img { transform: scale(1.06); }

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26,28,30,0.75) 0%, transparent 55%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 16px;
  opacity: 0;
  transition: opacity var(--transition);
}
.gallery-item:hover .gallery-overlay { opacity: 1; }
.gallery-tag {
  display: inline-block;
  background: var(--primary-container);
  color: var(--on-primary);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 6px;
  width: fit-content;
}
.gallery-caption {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--white);
}

/* ============================================
   CTA BANNER
   ============================================ */
.cta-banner {
  background: var(--surface-dim);
  padding: 80px 0;
}
.cta-banner-inner {
  display: flex;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
}
.cta-banner-text { flex: 1; min-width: 280px; }
.cta-banner-text h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
  margin-bottom: 10px;
}
.cta-banner-text p {
  color: rgba(255,255,255,0.62);
  font-size: 0.94rem;
  max-width: 480px;
}
.cta-banner-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-shrink: 0;
  flex-wrap: wrap;
}
.cta-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  transition: color var(--transition);
}
.cta-phone svg { width: 18px; height: 18px; }
.cta-phone:hover { color: var(--primary-container); }

/* ============================================
   CONTACT
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.contact-info > p {
  color: var(--on-surface-var);
  font-size: 0.94rem;
  margin-bottom: 32px;
  line-height: 1.7;
  margin-top: 12px;
}
.contact-details { display: flex; flex-direction: column; gap: 10px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  text-decoration: none;
  color: var(--on-background);
  padding: 14px 16px;
  border-radius: var(--radius);
  background: var(--surface-container-low);
  transition: var(--transition);
}
a.contact-item:hover {
  background: var(--surface-container);
  box-shadow: var(--shadow-ambient);
}
.contact-item-icon {
  width: 38px;
  height: 38px;
  background: var(--primary-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-item-icon svg { width: 18px; height: 18px; color: var(--primary); }
.contact-item div { display: flex; flex-direction: column; gap: 2px; padding-top: 2px; }
.contact-label { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; color: var(--on-surface-var); letter-spacing: 0.07em; }
.contact-value { font-size: 0.92rem; font-weight: 600; color: var(--on-background); }

/* Map embed */
.map-embed {
  margin-top: 20px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-ambient);
}

.guarantee-box {
  background: var(--primary-container);
  padding: 36px 32px;
  border-radius: var(--radius-lg);
}
.guarantee-box-icon { width: 40px; height: 40px; color: var(--on-primary); margin-bottom: 16px; }
.guarantee-box h3 {
  font-size: 1.4rem;
  color: var(--on-primary);
  margin-bottom: 10px;
}
.guarantee-box > p {
  font-size: 0.9rem;
  color: rgba(26,28,30,0.65);
  margin-bottom: 24px;
  line-height: 1.65;
}
.guarantee-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
.guarantee-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--on-primary);
}
.guarantee-row svg { width: 15px; height: 15px; color: var(--on-primary); flex-shrink: 0; }
.guarantee-box .btn-dark { background: var(--on-background); color: var(--white); }
.guarantee-box .btn-dark:hover { background: #2e3033; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--surface-dim);
  color: rgba(255,255,255,0.6);
  padding: 56px 0 0;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px 48px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
}
.footer-logo {
  height: 44px;
  width: auto;
  margin-bottom: 14px;
  filter: brightness(0) invert(1);
  opacity: 0.8;
}
.footer-brand p { font-size: 0.83rem; line-height: 1.7; color: rgba(255,255,255,0.5); max-width: 260px; }
.footer-social {
  display: flex;
  gap: 8px;
  margin-top: 18px;
}
.footer-social a {
  width: 34px;
  height: 34px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: background var(--transition);
}
.footer-social a svg { width: 15px; height: 15px; color: rgba(255,255,255,0.6); }
.footer-social a:hover { background: var(--primary-container); }
.footer-social a:hover svg { color: var(--on-primary); }

.footer-col h4 {
  font-family: 'Space Grotesk', sans-serif;
  color: rgba(255,255,255,0.9);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-col ul a, .footer-col a {
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  font-size: 0.83rem;
  transition: color var(--transition);
}
.footer-col ul a:hover, .footer-col a:hover { color: var(--primary-container); }
.footer-col p { font-size: 0.83rem; margin-bottom: 6px; color: rgba(255,255,255,0.55); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  text-align: center;
  padding: 18px 28px;
  font-size: 0.76rem;
  color: rgba(255,255,255,0.3);
}
.footer-bottom a {
  color: rgba(255,255,255,0.35);
  text-decoration: none;
  font-weight: 400;
  transition: color var(--transition);
}
.footer-bottom a:hover { color: rgba(255,255,255,0.65); }

/* Mobile-only nav CTA — hidden unless menu is open */
.nav-cta-mobile { display: none; }

/* ============================================
   LIGHTBOX
   ============================================ */
#lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  align-items: center;
  justify-content: center;
}
#lightbox.lb-open { display: flex; }

.lb-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10,10,12,0.94);
  backdrop-filter: blur(6px);
}
.lb-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 90vw;
  max-height: 90vh;
  gap: 14px;
}
.lb-img {
  max-width: 90vw;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 32px 80px rgba(0,0,0,0.6);
  display: block;
}
.lb-caption {
  color: rgba(255,255,255,0.7);
  font-size: 0.88rem;
  font-weight: 500;
  text-align: center;
  margin: 0;
}
.lb-close {
  position: fixed;
  top: 20px;
  right: 24px;
  z-index: 2;
  background: rgba(255,255,255,0.12);
  border: none;
  color: var(--white);
  font-size: 2rem;
  line-height: 1;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.lb-close:hover { background: rgba(255,255,255,0.25); }

.lb-prev,
.lb-next {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  background: rgba(255,255,255,0.10);
  border: none;
  color: var(--white);
  font-size: 2.4rem;
  line-height: 1;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.lb-prev { left: 16px; }
.lb-next { right: 16px; }
.lb-prev:hover,
.lb-next:hover { background: rgba(255,255,255,0.22); }

@media (max-width: 600px) {
  .lb-prev { left: 6px; }
  .lb-next { right: 6px; }
}

/* ============================================
   SCROLL REVEAL
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .why-grid { grid-template-columns: 1fr 1fr; }
  .why-card-wide { grid-column: 1 / -1; }
  .specialties-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .service-detail-block,
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .service-detail-reverse { direction: ltr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-item-featured { grid-column: span 2; }
  .cta-banner-inner { flex-direction: column; align-items: flex-start; gap: 32px; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .nav-logo { margin-right: auto; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .hamburger { display: flex; }

  /* Mobile nav */
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(249,249,252,0.97);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 12px 16px 20px;
    gap: 2px;
    border-bottom: 1px solid var(--outline-var);
    box-shadow: 0 16px 32px rgba(26,28,30,0.08);
  }
  .nav-links.open li { width: 100%; }
  .nav-links.open .nav-link { font-size: 1rem; padding: 12px 16px; }
  .nav-cta-mobile { display: none; }
  .nav-links.open .nav-cta-mobile {
    display: block;
    background: var(--primary-container);
    color: var(--on-primary);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 700;
    padding: 13px 16px;
    border-radius: var(--radius-pill);
    text-align: center;
    margin-top: 8px;
    font-family: 'Manrope', sans-serif;
  }

  .hero { min-height: 75vh; }
  .hero-title { font-size: 2.2rem; }
  .why-grid { grid-template-columns: 1fr; }
  .why-card-wide { flex-direction: column; gap: 0; }
  .why-card-img { width: 100%; }
  .why-card-img img { border-radius: 0 0 var(--radius-lg) var(--radius-lg); height: 200px; }
  .specialties-grid { grid-template-columns: 1fr; }
  .service-detail-img img { height: 240px; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-item-featured { grid-column: span 2; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .footer-brand { grid-column: auto; }
}

@media (max-width: 480px) {
  .hero-ctas { flex-direction: column; }
  .stat-chips { flex-direction: column; }
  .gallery-tabs { gap: 6px; }
  .gallery-tab { padding: 7px 16px; font-size: 0.82rem; }
}