:root {
  --ink: #111827;
  --muted: #536575;
  --navy: #1e2d37;
  --steel: #6e8ea4;
  --ice: #dff4ff;
  --line: rgba(110, 142, 164, 0.28);
  --accent: #8fd7ff;
  --gold: #f8c94d;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #f7fafc;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

body.mobile-menu-open {
  overflow: hidden;
}

h1,
h2,
h3,
h4,
.brand-name {
  font-family: Arial, Helvetica, sans-serif;
  letter-spacing: -0.035em;
}

h1,
h2,
h3,
h4 {
  color: #111827;
  margin: 0;
  line-height: 1.05;
  font-weight: 800;
}

h1 {
  font-size: clamp(39px, 8vw, 72px);
}

h2 {
  font-size: clamp(31px, 6vw, 48px);
}

h3,
h4 {
  font-size: 22px;
}

p,
li,
a,
button,
input,
textarea {
  font-size: 16px;
}

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

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

.site-shell {
  overflow: hidden;
}

.tech-grid {
  position: relative;
}

.tech-grid::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.3;
  mask-image: linear-gradient(to bottom, #000, transparent 80%);
}

.orb {
  position: absolute;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(143, 215, 255, 0.32);
  border-radius: 999px;
  background: radial-gradient(circle, rgba(143, 215, 255, 0.16), transparent 68%);
  pointer-events: none;
}

.orb-one {
  top: 8%;
  right: -110px;
}

.orb-two {
  bottom: 12%;
  left: -130px;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  background: rgba(30, 45, 55, 0.94);
  border-bottom: 1px solid rgba(143, 215, 255, 0.22);
  backdrop-filter: blur(18px);
}

.header-inner {
  min-height: 76px;
}

.logo-link {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: #ffffff;
}

.logo-mark {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(143, 215, 255, 0.75);
  background: linear-gradient(135deg, #243846, #101a22);
  display: grid;
  place-items: center;
  box-shadow: 0 0 24px rgba(143, 215, 255, 0.25);
}

.logo-mark img {
  width: 30px;
  height: 30px;
  object-fit: cover;
}

.brand-name {
  font-size: 24px;
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
}

.desktop-nav {
  display: none !important;
}

.desktop-phone {
  display: none !important;
}

.mobile-toggle {
  display: inline-flex !important;
  width: 46px;
  height: 46px;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  border: 1px solid rgba(143, 215, 255, 0.45);
  background: rgba(255, 255, 255, 0.06);
}

.mobile-menu {
  display: none;
  position: fixed;
  inset: 76px 0 auto 0;
  z-index: 55;
  background: rgba(17, 27, 36, 0.98);
  border-bottom: 1px solid rgba(143, 215, 255, 0.25);
  padding: 22px;
}

.mobile-menu.is-open {
  display: block;
}

.mobile-menu a:not(.btn) {
  display: block;
  color: #ffffff;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 22px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: linear-gradient(135deg, #6e8ea4, #3f6178);
  color: #ffffff;
  font-weight: 800;
  white-space: nowrap;
  overflow: hidden;
  isolation: isolate;
  box-shadow: 0 0 0 rgba(255, 255, 255, 0);
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.btn::after {
  content: "";
  position: absolute;
  inset: -9px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  opacity: 0;
  animation: pulseGlow 2.3s ease-in-out infinite;
  z-index: -1;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(143, 215, 255, 0.45);
  background: linear-gradient(135deg, #82a7bf, #4f748d);
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.18; transform: scale(0.98); }
  50% { opacity: 0.78; transform: scale(1.03); }
}

.hero {
  min-height: 100svh;
  padding-top: 112px;
  background-image: linear-gradient(90deg, rgba(10, 18, 25, 0.96) 0%, rgba(21, 36, 48, 0.88) 48%, rgba(21, 36, 48, 0.48) 100%), url('../images/hero-technician.png');
  background-size: cover;
  background-position: center;
  color: #ffffff;
}

.hero h1,
.dark-section h2,
.dark-section h3,
.dark-section h4,
.hero-card h2,
.hero-card h3 {
  color: #ffffff;
}

.hero-text {
  color: rgba(255, 255, 255, 0.9);
  max-width: 700px;
}

.stars {
  color: var(--gold);
  letter-spacing: 0.12em;
  font-size: 22px;
  text-shadow: 0 0 16px rgba(248, 201, 77, 0.35);
}

.trust-icons {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.trust-icons img {
  width: auto;
  height: 48px;
  object-fit: contain;
  border: 1px solid rgba(143, 215, 255, 0.38);
  background: rgba(255, 255, 255, 0.08);
  padding: 6px;
}

.hero-card {
  border: 1px solid rgba(143, 215, 255, 0.32);
  background: rgba(30, 45, 55, 0.68);
  backdrop-filter: blur(16px);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.28);
}

.hero-card p,
.hero-card li {
  color: rgba(255, 255, 255, 0.86);
}

.benefit-dot,
.section-accent {
  display: inline-block;
  width: 42px;
  height: 3px;
  background: var(--steel);
  box-shadow: 0 0 18px rgba(143, 215, 255, 0.55);
}

.section-pad {
  padding: 72px 0;
}

.card {
  border: 1px solid rgba(30, 45, 55, 0.13);
  background: #ffffff;
  box-shadow: 0 18px 45px rgba(30, 45, 55, 0.08);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(110, 142, 164, 0.55);
  box-shadow: 0 24px 60px rgba(30, 45, 55, 0.14), 0 0 26px rgba(143, 215, 255, 0.18);
}

.card p,
.card li {
  color: #374151;
}

.dark-section {
  position: relative;
  color: #ffffff;
  background: linear-gradient(135deg, #1e2d37, #0f1921);
}

.dark-section p,
.dark-section li {
  color: rgba(255, 255, 255, 0.84);
}

.split-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
}

.split-text,
.split-media {
  min-width: 0;
}

.split-media img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid rgba(110, 142, 164, 0.36);
  box-shadow: 0 22px 55px rgba(30, 45, 55, 0.16);
}

.icon-box {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  color: var(--steel);
  border: 1px solid rgba(110, 142, 164, 0.4);
  background: rgba(110, 142, 164, 0.08);
}

.dark-section .icon-box,
.hero-card .icon-box {
  color: var(--ice);
  border-color: rgba(143, 215, 255, 0.42);
  background: rgba(143, 215, 255, 0.08);
}

.review-track {
  display: flex;
  transition: transform 360ms ease;
  will-change: transform;
}

.review-slide {
  min-width: 100%;
  padding: 0 10px;
}

.review-card {
  height: 100%;
  border: 1px solid rgba(143, 215, 255, 0.22);
  background: rgba(255, 255, 255, 0.08);
  padding: 24px;
}

.review-card p {
  color: rgba(255, 255, 255, 0.86);
}

.review-card strong {
  color: #ffffff;
}

.carousel-btn {
  width: 46px;
  height: 46px;
  border: 1px solid rgba(143, 215, 255, 0.45);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  transition: box-shadow 180ms ease, transform 180ms ease;
}

.carousel-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 22px rgba(143, 215, 255, 0.35);
}

.faq-item {
  border-top: 1px solid rgba(30, 45, 55, 0.14);
  padding: 22px 0;
}

.footer {
  background: #101820;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.footer p,
.footer a,
.footer li {
  font-size: 14px;
}

.footer h3,
.footer h4 {
  color: #ffffff;
}

.sticky-call {
  display: none !important;
}

.sticky-call.is-visible {
  display: flex !important;
}

@media (max-width: 767px) {
  h1 {
    font-size: clamp(39px, 11vw, 50px);
  }

  h2 {
    font-size: clamp(31px, 9vw, 36px);
  }

  .section-pad {
    padding: 56px 0;
  }

  .sticky-call {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 70;
    align-items: center;
    justify-content: center;
    min-height: 62px;
    padding: 12px 14px calc(12px + env(safe-area-inset-bottom));
    background: #111827;
    color: #ffffff;
    font-weight: 900;
    white-space: nowrap;
    opacity: 0;
    transform: translateY(100%);
    transition: opacity 220ms ease, transform 220ms ease;
    box-shadow: 0 -14px 36px rgba(0, 0, 0, 0.28);
  }

  .sticky-call.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  body.has-sticky-call {
    padding-bottom: 78px;
  }
}

@media (min-width: 768px) {
  .desktop-nav {
    display: flex !important;
  }

  .desktop-phone {
    display: inline-flex !important;
  }

  .mobile-toggle,
  .mobile-menu,
  .sticky-call,
  .sticky-call.is-visible {
    display: none !important;
  }

  .split-row {
    grid-template-columns: minmax(0, 65%) minmax(0, 35%);
  }

  .split-row.reverse {
    grid-template-columns: minmax(0, 35%) minmax(0, 65%);
  }

  .split-row.reverse .split-media {
    order: 1;
  }

  .split-row.reverse .split-text {
    order: 2;
  }

  .review-slide {
    min-width: 33.333333%;
  }
}