:root {
  --ink: #17212b;
  --muted: #607181;
  --line: #dbe5ec;
  --panel: #f5f8fa;
  --white: #ffffff;
  --ice: #dff5ff;
  --teal: #087f8c;
  --teal-dark: #055965;
  --blue: #078bd5;
  --silver: #d8e0e6;
  --amber: #c9891c;
  --navy: #102638;
  --shadow: 0 20px 55px rgba(12, 32, 46, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  letter-spacing: 0;
}

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

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 100;
  padding: 12px 20px;
  color: var(--navy);
  background: var(--white);
  border-radius: 0 0 6px 6px;
  font-weight: 700;
  font-size: 14px;
}

.skip-link:focus {
  top: 0;
}

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

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 6px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--white);
  border-radius: 1px;
  transition: transform 0.2s, opacity 0.2s;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(20px, 5vw, 64px);
  color: var(--white);
  background: rgba(16, 38, 56, 0.86);
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 300px;
}

.brand img {
  width: 96px;
  height: 54px;
  object-fit: contain;
  border-radius: 6px;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.24);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 18px;
  line-height: 1.1;
}

.brand small {
  margin-top: 3px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 11px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
  font-weight: 600;
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 0;
  border-radius: 6px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.header-cta {
  color: var(--navy);
  background: var(--white);
}

.hero {
  position: relative;
  min-height: 94vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--navy);
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  background:
    radial-gradient(circle at 18% 36%, rgba(7, 139, 213, 0.32), transparent 32%),
    linear-gradient(90deg, rgba(6, 18, 31, 0.95) 0%, rgba(9, 25, 38, 0.83) 39%, rgba(9, 25, 38, 0.2) 78%),
    linear-gradient(0deg, rgba(9, 25, 38, 0.22), rgba(9, 25, 38, 0.08));
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(720px, calc(100% - 40px));
  margin-left: clamp(20px, 6vw, 80px);
  padding-top: 76px;
  color: var(--white);
}

.hero-logo-panel {
  display: inline-grid;
  place-items: center;
  width: min(340px, 76vw);
  margin-bottom: 24px;
  padding: 10px;
  background: rgba(4, 10, 18, 0.62);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.32);
}

.hero-logo {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--ice);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(42px, 6vw, 74px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 610px;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 19px;
  line-height: 1.65;
}

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

.button.primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--teal));
}

.button.primary:hover {
  background: var(--teal-dark);
}

.button.email {
  color: var(--navy);
  background: var(--white);
}

.button.email:hover {
  background: var(--ice);
}

.button.secondary {
  color: var(--white);
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.32);
}

.button.whatsapp {
  color: var(--white);
  background: #1f9d58;
}

.button.whatsapp:hover {
  background: #177d46;
}

.trust-strip {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  width: min(1180px, calc(100% - 40px));
  margin: -52px auto 0;
  overflow: hidden;
  background: var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.trust-strip div {
  padding: 26px;
  background: var(--white);
}

.trust-strip strong,
.trust-strip span {
  display: block;
}

.trust-strip strong {
  margin-bottom: 8px;
  color: var(--navy);
  font-size: 17px;
}

.trust-strip span {
  color: var(--muted);
  line-height: 1.55;
}

.section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 92px 0;
}

.intro {
  max-width: 880px;
  margin-left: max(20px, calc((100% - 1180px) / 2));
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(32px, 4vw, 50px);
  line-height: 1.08;
}

.intro p,
.split p,
.contact-copy p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}

.service-grid {
  padding-top: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.service-card {
  position: relative;
  overflow: hidden;
  min-height: 315px;
  padding: 34px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.service-card::after {
  content: "";
  position: absolute;
  inset: auto -30px -70px auto;
  width: 160px;
  height: 160px;
  background: rgba(7, 139, 213, 0.1);
  border-radius: 50%;
}

.service-card.featured {
  color: var(--white);
  background: linear-gradient(145deg, #102638 0%, #064d73 100%);
  border-color: rgba(255, 255, 255, 0.14);
}

.service-card.featured p {
  color: rgba(255, 255, 255, 0.78);
}

.service-card.featured .icon {
  color: var(--white);
  background: rgba(255, 255, 255, 0.12);
}

.service-card.featured .service-number {
  color: rgba(255, 255, 255, 0.2);
}

.service-number {
  position: absolute;
  top: 24px;
  right: 28px;
  color: rgba(16, 38, 56, 0.12);
  font-size: 56px;
  font-weight: 800;
  line-height: 1;
}

.icon {
  display: grid;
  width: 48px;
  height: 48px;
  margin-bottom: 26px;
  place-items: center;
  color: var(--blue);
  background: rgba(7, 139, 213, 0.1);
  border-radius: 8px;
}

.icon svg {
  width: 27px;
  height: 27px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-card h3 {
  margin-bottom: 14px;
  font-size: 22px;
}

.service-card p {
  color: var(--muted);
  line-height: 1.7;
}

.emergency-section {
  position: relative;
  overflow: hidden;
  color: var(--white);
  background:
    linear-gradient(120deg, rgba(7, 139, 213, 0.28) 0%, rgba(7, 139, 213, 0) 42%),
    linear-gradient(135deg, #06111d 0%, #102638 54%, #08121f 100%);
}

.emergency-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, transparent, #000 18%, #000 80%, transparent);
  opacity: 0.18;
}

.emergency-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 0.82fr;
  gap: 54px;
  align-items: center;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 86px 0;
}

.emergency-content h2 {
  max-width: 720px;
}

.emergency-content p:not(.eyebrow) {
  max-width: 650px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
  line-height: 1.75;
}

.emergency-button {
  margin-top: 12px;
  color: #07111e;
  background: var(--white);
}

.emergency-button:hover {
  background: var(--ice);
}

.emergency-panel {
  padding: 34px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.24);
}

.emergency-panel h3 {
  margin-bottom: 20px;
  font-size: 24px;
}

.emergency-panel ul {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.emergency-panel li {
  position: relative;
  padding-left: 28px;
  color: rgba(255, 255, 255, 0.84);
  line-height: 1.55;
}

.emergency-panel li::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  width: 10px;
  height: 10px;
  background: var(--blue);
  border: 2px solid var(--ice);
  border-radius: 50%;
}

.band {
  background:
    radial-gradient(circle at 28% 14%, rgba(7, 139, 213, 0.28), transparent 28%),
    linear-gradient(135deg, #07111e 0%, #102638 60%, #0f1b28 100%);
  color: var(--white);
}

.band-content {
  display: grid;
  grid-template-columns: 0.86fr 1fr;
  gap: 48px;
  align-items: center;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 86px 0;
}

.brand-showcase {
  display: grid;
  place-items: center;
  min-height: 360px;
  padding: 30px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
}

.brand-showcase img {
  width: min(430px, 100%);
  height: auto;
  border-radius: 6px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.band-content p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.74);
  font-size: 17px;
  line-height: 1.75;
}

.sector-list {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
  margin-top: 34px;
}

.sector-list span {
  display: flex;
  align-items: center;
  min-height: 58px;
  padding: 14px 16px;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 6px;
  font-weight: 700;
}

.split {
  display: grid;
  grid-template-columns: 1fr 0.86fr;
  gap: 70px;
  align-items: center;
}

.check-panel {
  padding: 34px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.check-panel p {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin: 0;
  padding: 18px 0;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  font-weight: 700;
}

.check-panel p:first-child {
  padding-top: 0;
}

.check-panel p:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.check-panel span {
  width: 11px;
  height: 11px;
  flex: 0 0 11px;
  margin-top: 6px;
  background: var(--teal);
  border-radius: 50%;
}

.contact-section {
  display: grid;
  grid-template-columns: 0.9fr 1fr;
  gap: 70px;
  align-items: start;
  padding: 88px clamp(20px, 6vw, 80px);
  color: var(--white);
  background:
    radial-gradient(circle at 80% 8%, rgba(7, 139, 213, 0.22), transparent 25%),
    linear-gradient(135deg, #102638 0%, #123d46 100%);
}

.contact-form {
  display: grid;
  gap: 18px;
}

.contact-methods {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.contact-methods a,
.contact-methods div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 68px;
  padding: 16px 18px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
}

.contact-methods strong,
.contact-methods span {
  display: block;
}

.contact-methods span {
  color: rgba(255, 255, 255, 0.74);
  font-weight: 700;
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: rgba(255, 255, 255, 0.86);
  font-weight: 700;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 15px 16px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid transparent;
  border-radius: 6px;
  font: inherit;
}

.contact-form textarea {
  resize: vertical;
}

.form-status {
  min-height: 24px;
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.5;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 24px clamp(20px, 5vw, 64px);
  color: var(--muted);
  background: var(--white);
  border-top: 1px solid var(--line);
  font-size: 14px;
}

/* Interior pages */

.page-hero {
  position: relative;
  overflow: hidden;
  padding: 168px clamp(20px, 6vw, 80px) 90px;
  color: var(--white);
  background:
    radial-gradient(circle at 16% 30%, rgba(7, 139, 213, 0.32), transparent 38%),
    linear-gradient(135deg, rgba(6, 17, 29, 0.94) 0%, rgba(16, 38, 56, 0.82) 52%, rgba(8, 18, 31, 0.95) 100%),
    url("/assets/hero-hvac.png") center / cover no-repeat;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, transparent, #000 18%, #000 80%, transparent);
  opacity: 0.18;
}

.page-hero > * {
  position: relative;
  z-index: 1;
}

.page-hero .eyebrow {
  margin-bottom: 10px;
}

.page-hero h1 {
  margin-bottom: 16px;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.06;
  max-width: 800px;
}

.page-hero h1::after {
  content: "";
  display: block;
  width: 72px;
  height: 4px;
  margin-top: 22px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  border-radius: 4px;
}

.page-hero p {
  max-width: 640px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 18px;
  line-height: 1.7;
}

.breadcrumb {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
  font-weight: 600;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
}

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

.page-body {
  width: min(900px, calc(100% - 40px));
  margin: 0 auto;
  padding: 72px 0;
}

.page-body h2 {
  font-size: clamp(26px, 3.5vw, 38px);
  margin-bottom: 16px;
}

.page-body > p:first-of-type {
  font-size: 20px;
  line-height: 1.7;
  color: var(--ink);
  font-weight: 500;
}

.page-body p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
  margin-bottom: 20px;
}

.page-body h3 {
  position: relative;
  margin-top: 48px;
  margin-bottom: 14px;
  padding-left: 18px;
  font-size: 22px;
}

.page-body h3::before {
  content: "";
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--blue), var(--teal));
  border-radius: 4px;
}

.page-body ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 36px;
  margin: 0 0 28px;
  padding: 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 16px;
  list-style: none;
}

.page-body ul li {
  position: relative;
  margin-bottom: 0;
  padding-left: 28px;
}

.page-body ul li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 10px;
  height: 10px;
  background: var(--teal);
  border: 2px solid var(--ice);
  border-radius: 50%;
}

.service-highlights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 36px 0 48px;
}

.highlight-card {
  position: relative;
  overflow: hidden;
  padding: 28px 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
}

.highlight-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
}

.highlight-card::after {
  content: "";
  position: absolute;
  inset: auto -30px -60px auto;
  width: 150px;
  height: 150px;
  background: rgba(7, 139, 213, 0.1);
  border-radius: 50%;
}

.highlight-card:hover {
  transform: translateY(-4px);
  border-color: rgba(7, 139, 213, 0.4);
  box-shadow: var(--shadow);
}

.highlight-card strong,
.highlight-card span {
  position: relative;
  z-index: 1;
}

.highlight-card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--navy);
  font-size: 18px;
  letter-spacing: -0.01em;
}

.highlight-card span {
  color: var(--muted);
  line-height: 1.6;
  font-size: 15px;
}

.area-band {
  padding: 56px clamp(20px, 6vw, 80px);
  background: var(--panel);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.area-band-inner {
  width: min(900px, 100%);
  margin: 0 auto;
}

.area-band h2 {
  font-size: clamp(24px, 3vw, 32px);
  margin-bottom: 10px;
}

.area-band p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 20px;
}

.area-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.area-tags a {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-weight: 700;
  font-size: 14px;
  color: var(--navy);
  transition: border-color 0.15s;
}

.area-tags a:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.page-cta {
  position: relative;
  overflow: hidden;
  padding: 76px clamp(20px, 6vw, 80px);
  color: var(--white);
  background:
    radial-gradient(circle at 80% 12%, rgba(7, 139, 213, 0.24), transparent 30%),
    linear-gradient(135deg, #102638 0%, #123d46 100%);
  text-align: center;
}

.page-cta > * {
  position: relative;
  z-index: 1;
}

.page-cta h2 {
  font-size: clamp(26px, 3.5vw, 38px);
  margin-bottom: 12px;
}

.page-cta p {
  max-width: 560px;
  margin: 0 auto 28px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 17px;
  line-height: 1.7;
}

.page-cta .cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.interior-nav .nav-links a,
.interior-nav .header-cta {
  color: rgba(255, 255, 255, 0.86);
}

.footer-areas {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 13px;
}

.footer-areas a {
  color: var(--muted);
}

.footer-areas a:hover {
  color: var(--blue);
}

@media (max-width: 940px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    order: 10;
    gap: 0;
    padding: 8px 0 4px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    display: block;
    padding: 12px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 16px;
  }

  .header-cta {
    display: none;
  }

  .hero {
    min-height: 86vh;
  }

  .hero-overlay {
    background: linear-gradient(90deg, rgba(9, 25, 38, 0.93), rgba(9, 25, 38, 0.58));
  }

  .trust-strip,
  .intro,
  .service-grid,
  .split,
  .band-content,
  .emergency-content,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .sector-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .intro,
  .split,
  .contact-section {
    gap: 34px;
  }

  .service-highlights {
    grid-template-columns: 1fr;
  }

  .page-body ul {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

@media (max-width: 620px) {
  .site-header {
    padding: 15px 18px;
  }

  .brand {
    min-width: 0;
  }

  .brand img {
    width: 72px;
    height: 48px;
  }

  .brand strong {
    font-size: 16px;
  }

  .brand small {
    max-width: 185px;
    font-size: 10px;
  }

  .hero-content {
    width: calc(100% - 36px);
    margin-left: 18px;
  }

  h1 {
    font-size: 40px;
  }

  .hero-copy {
    font-size: 16px;
  }

  .trust-strip {
    margin-top: 0;
    width: 100%;
    border-radius: 0;
  }

  .section {
    width: calc(100% - 36px);
    padding: 66px 0;
  }

  .service-card,
  .check-panel {
    padding: 26px;
  }

  .sector-list {
    grid-template-columns: 1fr;
  }

  .contact-section {
    padding: 66px 18px;
  }

  .emergency-content {
    width: calc(100% - 36px);
    padding: 66px 0;
  }

  .emergency-panel {
    padding: 26px;
  }

  .contact-methods a,
  .contact-methods div {
    align-items: flex-start;
    flex-direction: column;
  }
}