/* ============================================
   3 C'S HEATING & COOLING — DESIGN SYSTEM
   ============================================ */

:root {
  /* Color tokens (matched to the 3 C's logo) */
  --navy: #0B0E13;        /* dark panels */
  --navy-deep: #000000;   /* logo black */
  --rust: #F47A1F;        /* logo orange */
  --rust-light: #FF9A3D;
  --orange-deep: #C4540A; /* orange for white-text backgrounds */
  --blue: #1E8FE1;        /* logo blue */
  --blue-deep: #0E5FA8;   /* blue for white-text backgrounds */
  --chrome: #C9CED6;      /* logo tagline bar */
  --cream: #F3F5F7;       /* light page background */
  --cream-dim: #E3E7EB;
  --charcoal: #12161B;
  --slate: #56616D;
  --gold: #3FA9F5;        /* light blue accent on dark */
  --white: #FFFFFF;

  /* Type */
  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Source Sans 3", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Courier New", monospace;

  /* Layout */
  --max-width: 1180px;
  --section-pad: 96px;
  --radius: 3px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--cream);
  color: var(--charcoal);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0;
  line-height: 1.1;
  font-weight: 600;
}

p {
  margin: 0 0 1em 0;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--rust);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--rust);
  display: inline-block;
}

/* Focus visibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

/* ============================================
   HEADER / NAV
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy);
  border-bottom: 3px solid var(--rust);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--white);
}

.brand-logo {
  height: 52px;
  width: 52px;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-text .name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0.03em;
  color: var(--white);
}

.brand-text .tagline {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--gold);
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  font-family: var(--font-display);
  font-size: 0.88rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cream-dim);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--white);
  border-bottom-color: var(--rust);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.phone-link {
  font-family: var(--font-mono);
  color: var(--cream);
  font-size: 0.9rem;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.6rem;
  cursor: pointer;
  padding: 4px 8px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.88rem;
  padding: 13px 26px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s, color 0.2s, border-color 0.2s;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--rust);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--rust-light);
}

.btn-outline {
  background: transparent;
  border-color: var(--cream);
  color: var(--cream);
}

.btn-outline:hover {
  background: var(--cream);
  color: var(--navy);
}

.btn-block {
  width: 100%;
}

/* ============================================
   HERO (split warm/cool dial motif)
   ============================================ */

.hero {
  position: relative;
  background: linear-gradient(100deg, var(--navy) 0%, var(--navy) 48%, var(--rust) 52%, var(--rust) 100%);
  color: var(--white);
  overflow: hidden;
  min-height: 560px;
  display: flex;
  align-items: center;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 90px 28px 70px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
  width: 100%;
}

.hero-copy .eyebrow {
  color: var(--gold);
}

.hero-copy .eyebrow::before {
  background: var(--gold);
}

.hero-copy h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  margin: 18px 0 22px;
  color: var(--white);
}

.hero-copy h1 .seam {
  display: block;
}

.hero-copy p {
  font-size: 1.1rem;
  color: var(--cream-dim);
  max-width: 480px;
}

.hero-cta-row {
  display: flex;
  gap: 16px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 28px;
  margin-top: 38px;
  flex-wrap: wrap;
}

.hero-stat {
  font-family: var(--font-mono);
}

.hero-stat .num {
  font-size: 1.6rem;
  color: var(--gold);
  display: block;
}

.hero-stat .label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cream-dim);
}

/* Gauge graphic */
.hero-gauge {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-gauge svg {
  width: 100%;
  max-width: 360px;
  height: auto;
}

/* ============================================
   SECTIONS
   ============================================ */

section {
  padding: var(--section-pad) 0;
}

.section-head {
  margin-bottom: 48px;
  max-width: 640px;
}

.section-head h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  margin-top: 14px;
  color: var(--navy);
}

.section-head p {
  color: var(--slate);
  font-size: 1.05rem;
  margin-top: 14px;
}

.bg-navy {
  background: var(--navy);
  color: var(--cream-dim);
}

.bg-navy h2 {
  color: var(--white);
}

.bg-navy .section-head p {
  color: var(--cream-dim);
}

.bg-dim {
  background: var(--cream-dim);
}

/* Service mode dial row (parallel, not sequential) */
.dial-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.dial-card {
  background: var(--white);
  border: 1px solid #E2DACB;
  border-radius: var(--radius);
  padding: 32px 26px;
  position: relative;
}

.dial-card .dial-icon {
  width: 54px;
  height: 54px;
  margin-bottom: 18px;
}

.dial-card h3 {
  font-size: 1.15rem;
  color: var(--navy);
  margin-bottom: 10px;
}

.dial-card p {
  color: var(--slate);
  font-size: 0.96rem;
  margin-bottom: 0;
}

.dial-card .dial-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--rust);
  position: absolute;
  top: 30px;
  right: 26px;
}

/* Sector split (residential/commercial) */
.sector-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-radius: var(--radius);
  overflow: hidden;
}

.sector-card {
  padding: 48px 40px;
  color: var(--white);
}

.sector-card.cool {
  background: var(--navy);
}

.sector-card.warm {
  background: var(--rust);
}

.sector-card .eyebrow {
  color: var(--gold);
}

.sector-card .eyebrow::before {
  background: var(--gold);
}

.sector-card h3 {
  font-size: 1.6rem;
  color: var(--white);
  margin: 14px 0 16px;
}

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

.sector-card li {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  padding: 9px 0;
  border-top: 1px solid rgba(255,255,255,0.15);
}

.sector-card li:first-of-type {
  border-top: none;
}

/* Service area band */
.service-area-band {
  background: var(--navy-deep);
  color: var(--white);
  padding: 56px 0;
}

.service-area-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.service-area-inner h3 {
  font-size: 1.6rem;
  color: var(--white);
}

.service-area-inner .eyebrow {
  color: var(--gold);
}

.service-area-inner .eyebrow::before {
  background: var(--gold);
}

.area-readout {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--cream-dim);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius);
  padding: 16px 22px;
}

.area-readout .reading {
  color: var(--gold);
  font-size: 1.1rem;
}

/* Cards grid generic */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.info-card {
  background: var(--white);
  border: 1px solid #E2DACB;
  border-radius: var(--radius);
  padding: 30px 26px;
}

.info-card h3 {
  color: var(--navy);
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.info-card p {
  color: var(--slate);
  font-size: 0.95rem;
  margin: 0;
}

/* Testimonials */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.testimonial-card {
  background: var(--white);
  border-left: 4px solid var(--rust);
  border-radius: var(--radius);
  padding: 28px 26px;
}

.testimonial-card .stars {
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  margin-bottom: 14px;
  letter-spacing: 0.15em;
}

.testimonial-card p.quote {
  font-size: 0.98rem;
  color: var(--charcoal);
  margin-bottom: 16px;
}

.testimonial-card .author {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--slate);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.gallery-item {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--cream-dim);
  border: 1px solid #E2DACB;
  position: relative;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-align: center;
  padding: 16px;
}

.gallery-placeholder svg {
  width: 36px;
  height: 36px;
  opacity: 0.5;
}

/* CTA band */
.cta-band {
  background: linear-gradient(100deg, var(--navy) 0%, var(--navy) 50%, var(--rust) 50%, var(--rust) 100%);
  color: var(--white);
  text-align: center;
  padding: 70px 0;
}

.cta-band h2 {
  color: var(--white);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 18px;
}

.cta-band p {
  color: var(--cream-dim);
  font-size: 1.05rem;
  margin-bottom: 30px;
}

.cta-band .hero-cta-row {
  justify-content: center;
}

/* Forms */
.form-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}

.contact-form {
  background: var(--white);
  border: 1px solid #E2DACB;
  border-radius: var(--radius);
  padding: 36px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-field {
  margin-bottom: 20px;
}

.form-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--slate);
  margin-bottom: 8px;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.98rem;
  padding: 12px 14px;
  border: 1px solid #D7CFBE;
  border-radius: var(--radius);
  background: var(--cream);
  color: var(--charcoal);
}

.form-field textarea {
  resize: vertical;
  min-height: 110px;
}

.contact-info-card {
  background: var(--navy);
  color: var(--cream-dim);
  border-radius: var(--radius);
  padding: 36px;
}

.contact-info-card h3 {
  color: var(--white);
  font-size: 1.3rem;
  margin-bottom: 22px;
}

.contact-line {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid rgba(255,255,255,0.15);
  align-items: flex-start;
}

.contact-line:first-of-type {
  border-top: none;
  padding-top: 0;
}

.contact-line .icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--gold);
}

.contact-line .text .label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gold);
  display: block;
  margin-bottom: 3px;
}

.contact-line .text a,
.contact-line .text span {
  font-size: 0.96rem;
  color: var(--cream-dim);
}

/* Booking placeholder note (visible only to site owner / dev) */
.booking-note {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold);
  background: rgba(216,155,60,0.12);
  border: 1px dashed var(--gold);
  border-radius: var(--radius);
  padding: 8px 12px;
  margin-top: 10px;
  display: inline-block;
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background: var(--navy-deep);
  color: var(--cream-dim);
  padding: 56px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-brand img {
  height: 42px;
  width: 42px;
}

.footer-brand .name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--white);
  letter-spacing: 0.03em;
}

.footer-col h4 {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--gold);
  margin-bottom: 16px;
}

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

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  font-size: 0.92rem;
  color: var(--cream-dim);
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--gold);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--slate);
}

/* ============================================
   PAGE HEADER (for non-home pages)
   ============================================ */

.page-header {
  background: var(--navy);
  color: var(--white);
  padding: 70px 0 50px;
  position: relative;
}

.page-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--white);
  margin-top: 16px;
}

.page-header p {
  color: var(--cream-dim);
  max-width: 560px;
  margin-top: 14px;
  font-size: 1.05rem;
}

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--slate);
  margin-bottom: 8px;
}

.breadcrumb a {
  color: var(--gold);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 980px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }
  .hero-gauge {
    order: -1;
    max-width: 260px;
    margin: 0 auto 20px;
  }
  .dial-row,
  .card-grid,
  .testimonial-grid,
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .sector-grid {
    grid-template-columns: 1fr;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  :root {
    --section-pad: 64px;
  }
  .main-nav {
    position: fixed;
    top: 81px;
    left: 0;
    right: 0;
    background: var(--navy);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 28px 28px;
    gap: 16px;
    border-bottom: 3px solid var(--rust);
    transform: translateY(-110%);
    transition: transform 0.25s ease;
  }
  .main-nav.open {
    transform: translateY(0);
  }
  .nav-toggle {
    display: block;
  }
  .header-actions .btn-primary {
    display: none;
  }
  .phone-link {
    display: none;
  }
  .dial-row,
  .card-grid,
  .testimonial-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  .sector-card {
    padding: 36px 26px;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .service-area-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .hero-cta-row .btn,
  .cta-band .btn {
    width: 100%;
  }
}


/* ============================================
   LOGO THEME OVERRIDES
   ============================================ */

.site-header {
  background: #000;
  border-bottom: 3px solid transparent;
  border-image: linear-gradient(90deg, var(--rust) 0 50%, var(--blue) 50% 100%) 1;
}
.header-inner { padding: 8px 28px; }
.brand-logo { height: 64px; width: auto; }
.main-nav a:hover, .main-nav a.active { border-bottom-color: var(--rust); }
.main-nav a.active { color: var(--rust-light); }

.hero {
  background: #000;
  border-bottom: 4px solid transparent;
  border-image: linear-gradient(90deg, var(--rust) 0 50%, var(--blue) 50% 100%) 1;
}
.hero-copy .eyebrow { color: var(--rust); }
.hero-copy .eyebrow::before { background: var(--rust); }
.hero-copy h1 .seam { color: var(--gold); }
.hero-stat .num { color: var(--rust); }
.hero-logo { display: flex; justify-content: center; }
.hero-logo img { width: 100%; max-width: 520px; height: auto; }

.btn-primary { background: var(--orange-deep); }
.btn-primary:hover { background: var(--rust); }
.btn-outline { border-color: var(--chrome); color: var(--white); }
.btn-outline:hover { background: var(--blue); border-color: var(--blue); color: var(--white); }

.eyebrow { color: var(--orange-deep); }
.eyebrow::before { background: linear-gradient(90deg, var(--rust) 50%, var(--blue) 50%); }

.dial-card { border-top: 3px solid var(--rust); }
.dial-card:nth-child(2) { border-top-color: var(--chrome); }
.dial-card:nth-child(3) { border-top-color: var(--blue); }
.dial-card .dial-tag { color: var(--slate); }

.sector-card.cool { background: var(--blue-deep); }
.sector-card.warm { background: var(--orange-deep); }
.sector-card .eyebrow, .sector-card .eyebrow::before { color: #fff; }
.sector-card .eyebrow::before { background: #fff; }
.sector-card .coverage {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(0,0,0,0.25);
  padding: 6px 12px;
  border-radius: var(--radius);
  margin: -4px 0 18px;
}

.sector-card.newbuild { background: var(--navy); border-top: 4px solid var(--chrome); }
.sector-card.newbuild .eyebrow { color: var(--chrome); }
.sector-card.newbuild .eyebrow::before { background: var(--chrome); }
.nb-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 18px; }
.nb-label { color: var(--gold); font-weight: 600; margin-bottom: 8px; }
.sector-card li:first-of-type { border-top: 1px solid rgba(255,255,255,0.15); }

.three-cs .info-card { position: relative; padding-top: 34px; border-top: 4px solid var(--rust); }
.three-cs .c-chrome { border-top-color: var(--chrome); }
.three-cs .c-blue { border-top-color: var(--blue); }
.c-letter {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  display: block;
  margin-bottom: 10px;
  color: var(--rust);
}
.c-chrome .c-letter { color: #8A929C; }
.c-blue .c-letter { color: var(--blue); }

.service-area-band { background: #000; }
.service-area-inner .eyebrow { color: var(--rust); }
.area-readouts { display: flex; gap: 16px; flex-wrap: wrap; }
.area-readout { border-left: 4px solid var(--rust); min-width: 220px; }
.area-readout.com { border-left-color: var(--blue); }
.area-readout .reading { color: var(--rust); text-transform: uppercase; }
.area-readout.com .reading { color: var(--gold); }

.cta-band {
  background: var(--navy);
  border-top: 4px solid transparent;
  border-image: linear-gradient(90deg, var(--rust) 0 50%, var(--blue) 50% 100%) 1;
}

.testimonial-card { border-left-color: var(--blue); border-radius: 0; }
.testimonial-card .stars { color: var(--rust); }

.page-header { background: #000; border-bottom: 4px solid transparent; border-image: linear-gradient(90deg, var(--rust) 0 50%, var(--blue) 50% 100%) 1; }
.page-header .eyebrow { color: var(--rust); }
.breadcrumb a { color: var(--gold); }

.contact-info-card { background: var(--navy); }
.contact-info-card[style*="--rust"] { background: var(--orange-deep) !important; }
.contact-line .icon, .contact-line .text .label { color: var(--gold); }
.booking-note { color: #fff; background: rgba(0,0,0,0.25); border-color: rgba(255,255,255,0.6); }

.site-footer { background: #000; }
.footer-brand img { height: 80px; width: auto; }
.footer-col h4 { color: var(--rust); }
.footer-col a:hover { color: var(--gold); }
.footer-bottom { color: #7D8793; }

@media (max-width: 980px) {
  .hero-logo { order: -1; }
  .hero-logo img { max-width: 360px; }
}
@media (max-width: 720px) {
  .brand-logo { height: 52px; }
  .main-nav { top: 71px; background: #000; }
  .nb-grid { grid-template-columns: 1fr; }
  .area-readout { min-width: 0; width: 100%; }
}
.footer-col li span { font-size: 0.85rem; color: var(--cream-dim); }

@media (max-width: 720px) {
  .main-nav {
    position: absolute;
    top: 100%;
    transform: translateY(-6px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  }
  .main-nav.open {
    transform: none;
    opacity: 1;
    visibility: visible;
  }
}