/* ==========================================================================
   ClearFlow Heating & Cooling — style.css
   Design: Comfort → Airflow → System Care → Seasonal Maintenance
   ========================================================================== */

:root {
  --charcoal:  #20242A;
  --sage:      #A8BFA3;
  --sage-soft: #E7ECE4;
  --ivory:     #F5F1E8;
  --copper:    #B77B57;
  --copper-soft: #EFDFD4;
  --slate:     #59636E;
  --white:     #FFFFFF;

  --font-heading: "DM Sans", system-ui, sans-serif;
  --font-body:    "Manrope", system-ui, sans-serif;

  --container: 1180px;
  --radius:     14px;
  --radius-sm:  9px;

  --shadow-sm: 0 1px 2px rgba(32,36,42,.06), 0 4px 14px rgba(32,36,42,.06);
  --shadow-md: 0 10px 30px rgba(32,36,42,.10);

  --ease: cubic-bezier(.22,.61,.36,1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--charcoal);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

body.no-scroll {
  overflow: hidden;
}

/* slow spin for decorative fan icon */
.fa-spin-slow {
  display: inline-block;
  animation: spinSlow 10s linear infinite;
}

@keyframes spinSlow {
  to {
    transform: rotate(360deg);
  }
}

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

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

ul, ol {
  list-style: none;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.01em;
}

button {
  font-family: inherit;
  cursor: pointer;
}

.container {
  width: min(100% - 3rem, var(--container));
  margin-inline: auto;
}

section[id] {
  scroll-margin-top: 84px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  z-index: 1000;
  padding: .65rem 1.1rem;
  background: var(--charcoal);
  color: var(--white);
  border-radius: var(--radius-sm);
  transition: top .2s var(--ease);
}

.skip-link:focus {
  top: 1rem;
}

:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: .95rem;
  line-height: 1;
  padding: .95rem 1.6rem;
  border-radius: 999px;
  border: 2px solid transparent;
  transition: transform .25s var(--ease), background-color .25s var(--ease),
              color .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
}

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

.btn--primary:hover {
  background: var(--copper);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--light {
  background: var(--white);
  color: var(--charcoal);
}

.btn--light:hover {
  background: var(--charcoal);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ---------- Brand ---------- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--sage);
  color: var(--charcoal);
  font-size: 1.15rem;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand__name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

.brand__tag {
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--slate);
}

/* ---------- Section heads ---------- */
.section-head__kicker {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: .8rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: .85rem;
}

.section-head__title {
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  max-width: 20ch;
}

.section-head__desc {
  margin-top: 1rem;
  max-width: 62ch;
  color: var(--slate);
}

/* ==========================================================================
   TOP BAR
   ========================================================================== */
.topbar {
  background: var(--charcoal);
  color: var(--ivory);
  font-size: .84rem;
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 40px;
  padding-block: .45rem;
}

.topbar__item {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
}

.topbar__item i {
  color: var(--sage);
  font-size: .8rem;
}

.topbar__item a {
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.topbar__item a:hover {
  color: var(--sage);
  border-bottom-color: var(--sage);
}

/* ==========================================================================
   HEADER / NAVIGATION
   ========================================================================== */
.site-header {
  background: var(--white);
  border-bottom: 1px solid rgba(32,36,42,.08);
  position: sticky;
  top: 0;
  z-index: 900;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 78px;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: .35rem;
}

.nav__link {
  position: relative;
  display: inline-block;
  padding: .45rem .7rem;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: .92rem;
  color: var(--slate);
  transition: color .2s var(--ease);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: .7rem;
  right: .7rem;
  bottom: .1rem;
  height: 2px;
  background: var(--copper);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .28s var(--ease);
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--charcoal);
}

.nav__link:hover::after,
.nav__link.is-active::after {
  transform: scaleX(1);
}

/* ---------- Hamburger ---------- */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 46px;
  height: 46px;
  padding: 0 11px;
  background: transparent;
  border: 1px solid rgba(32,36,42,.14);
  border-radius: var(--radius-sm);
}

.hamburger__line {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--charcoal);
  border-radius: 2px;
  transition: transform .3s var(--ease), opacity .25s var(--ease);
}

.hamburger.is-open .hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.is-open .hamburger__line:nth-child(2) {
  opacity: 0;
}

.hamburger.is-open .hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  background: var(--ivory);
  position: relative;
  overflow: clip;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 3.5rem;
  align-items: center;
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
}

.hero__label {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: .8rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 1.4rem;
}

.hero__label-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--copper);
}

.hero__title {
  font-size: clamp(2rem, 4.6vw, 3.15rem);
  max-width: 17ch;
  margin-bottom: 1.25rem;
}

.hero__body {
  max-width: 56ch;
  color: var(--slate);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.hero__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.4rem;
}

.hero__textlink {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: .95rem;
  color: var(--slate);
  border-bottom: 2px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease), gap .2s var(--ease);
}

.hero__textlink i {
  color: var(--copper);
  font-size: .85rem;
  transition: transform .25s var(--ease);
}

.hero__textlink:hover {
  color: var(--charcoal);
  border-bottom-color: var(--copper);
}

.hero__textlink:hover i {
  transform: translateX(4px);
}

/* hero visual */
.hero__visual {
  position: relative;
}

.hero__frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  aspect-ratio: 1 / 1;
}

.hero__frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(168,191,163,.18), rgba(183,123,87,.12));
  z-index: 1;
  pointer-events: none;
}

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

.hero__panel {
  position: absolute;
  left: -1.4rem;
  bottom: 1.6rem;
  z-index: 2;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 1rem 1.25rem;
  min-width: 215px;
}

.hero__panel::before {
  content: "";
  position: absolute;
  left: .9rem;
  top: 0;
  bottom: 0;
  width: 3px;
  border-radius: 3px;
  background: var(--sage);
}

.hero__panel-label {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: .8rem;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: .55rem;
  padding-left: 1rem;
}

.hero__panel-label i {
  color: var(--copper);
}

.hero__panel-list {
  display: flex;
  flex-wrap: wrap;
  gap: .3rem .9rem;
  padding-left: 1rem;
}

.hero__panel-list li {
  display: flex;
  align-items: center;
  gap: .35rem;
  font-size: .85rem;
  color: var(--charcoal);
}

.hero__panel-list li::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--copper);
}

.hero__flow {
  position: absolute;
  right: -2.5rem;
  top: -2.2rem;
  width: 200px;
  height: 200px;
  z-index: 3;
  opacity: .85;
}

/* ==========================================================================
   SNAPSHOT
   ========================================================================== */
.snapshot {
  background: var(--white);
  padding-block: clamp(4rem, 8vw, 6.5rem);
}

.snapshot__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.4rem;
  margin-top: 2.8rem;
}

.snapshot__block {
  position: relative;
  background: var(--ivory);
  border: 1px solid rgba(32,36,42,.06);
  border-radius: var(--radius);
  padding: 1.6rem 1.4rem 1.5rem;
  overflow: hidden;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}

.snapshot__block::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--sage);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}

.snapshot__block:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}

.snapshot__block:hover::before {
  transform: scaleX(1);
}

.snapshot__icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--white);
  color: var(--copper);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.snapshot__name {
  font-size: 1.05rem;
  margin-bottom: .4rem;
}

.snapshot__text {
  font-size: .9rem;
  color: var(--slate);
}

/* ==========================================================================
   ABOUT
   ========================================================================== */
.about {
  background: var(--ivory);
  padding-block: clamp(4rem, 8vw, 6.5rem);
}

.about__inner {
  display: grid;
  grid-template-columns: 1fr 44px 1fr;
  gap: 2.5rem;
  align-items: center;
}

.about__copy .section-head__title {
  margin-bottom: 1.1rem;
}

.about__lede {
  color: var(--charcoal);
  font-size: 1.02rem;
  margin-bottom: 1.3rem;
}

.about__checks {
  display: grid;
  gap: .7rem;
  margin-bottom: 1.4rem;
}

.about__checks li {
  display: flex;
  align-items: flex-start;
  gap: .7rem;
  color: var(--slate);
  font-size: .94rem;
}

.about__checks i {
  color: var(--copper);
  margin-top: .25rem;
}

.about__tail {
  color: var(--slate);
  font-size: .92rem;
  border-left: 3px solid var(--sage);
  padding-left: 1rem;
}

/* narrow vertical accent */
.about__accent {
  position: relative;
  align-self: stretch;
  justify-self: center;
  width: 12px;
}

.about__accent::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  background: var(--copper);
}

.about__accent::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--sage);
  box-shadow: 0 0 0 4px var(--ivory);
}

.about__frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.about__frame img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform .6s var(--ease);
}

.about__visual:hover .about__frame img {
  transform: scale(1.03);
}

.about__caption {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: var(--charcoal);
  color: var(--ivory);
  font-size: .82rem;
  padding: .55rem .9rem;
  border-radius: var(--radius-sm);
}

.about__caption i {
  color: var(--sage);
}

/* ==========================================================================
   SERVICES
   ========================================================================== */
.services {
  background: var(--charcoal);
  color: var(--white);
  padding-block: clamp(4rem, 8vw, 6.5rem);
}

.services .section-head__kicker {
  color: var(--sage);
}

.services .section-head__title {
  color: var(--white);
}

.section-head--split {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
  flex-wrap: wrap;
}

.section-head__side {
  max-width: 40ch;
  color: rgba(245,241,232,.72);
  font-size: .95rem;
}

.services__layout {
  display: grid;
  grid-template-columns: 1.12fr 1fr;
  gap: 1.4rem;
  margin-top: 3rem;
  align-items: stretch;
}

/* feature service card */
.service--feature {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  align-items: stretch;
  background: rgba(168,191,163,.1);
  border: 1px solid rgba(168,191,163,.28);
  border-radius: var(--radius);
  overflow: hidden;
}

.service__feature-copy {
  padding: 2rem;
  display: flex;
  flex-direction: column;
}

.service__feature-copy .service__icon {
  margin-bottom: 1.2rem;
}

.service__feature-copy h3 {
  font-size: 1.5rem;
  margin-bottom: .8rem;
}

.service__feature-copy p {
  color: rgba(245,241,232,.8);
  font-size: .94rem;
  margin-bottom: 1.4rem;
}

.service__feature-list {
  margin-top: auto;
  display: grid;
  gap: .55rem;
}

.service__feature-list li {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: .88rem;
  color: var(--ivory);
}

.service__feature-list i {
  color: var(--sage);
  width: 1rem;
}

.service__feature-visual {
  position: relative;
  min-height: 240px;
}

.service__feature-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, transparent 30%, rgba(32,36,42,.65));
  z-index: 1;
}

.service__feature-visual img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* supporting service cards */
.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.4rem;
}

.service__icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--sage);
  color: var(--charcoal);
  font-size: 1rem;
  margin-bottom: 1rem;
  transition: background-color .3s var(--ease), color .3s var(--ease), transform .3s var(--ease);
}

.service {
  background: rgba(245,241,232,.04);
  border: 1px solid rgba(245,241,232,.12);
  border-radius: var(--radius);
  padding: 1.5rem 1.4rem;
  transition: transform .3s var(--ease), border-color .3s var(--ease), background-color .3s var(--ease);
}

.service h3 {
  font-size: 1.02rem;
  margin-bottom: .5rem;
}

.service p {
  font-size: .86rem;
  color: rgba(245,241,232,.72);
}

.service:hover {
  transform: translateY(-4px);
  border-color: rgba(168,191,163,.5);
  background: rgba(168,191,163,.08);
}

.service:hover .service__icon {
  background: var(--copper);
  color: var(--white);
  transform: scale(1.05);
}

/* ==========================================================================
   WHY CHOOSE
   ========================================================================== */
.why {
  background: var(--white);
  padding-block: clamp(4rem, 8vw, 6.5rem);
}

.why__inner {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 4rem;
  align-items: start;
}

.why__lede {
  color: var(--slate);
  margin-top: 1.2rem;
  max-width: 38ch;
}

.why__list {
  border-top: 2px solid rgba(32,36,42,.1);
}

.why__item {
  display: flex;
  gap: 1.6rem;
  padding: 1.5rem .5rem;
  border-bottom: 1px solid rgba(32,36,42,.1);
  transition: background-color .3s var(--ease), padding-left .3s var(--ease);
}

.why__item:hover {
  background: var(--ivory);
  padding-left: 1.1rem;
}

.why__num {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--copper);
  line-height: 1.2;
  min-width: 2ch;
}

.why__content h3 {
  font-size: 1.15rem;
  margin-bottom: .35rem;
}

.why__content p {
  color: var(--slate);
  font-size: .94rem;
  max-width: 52ch;
}

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact {
  background: var(--sage);
  padding-block: clamp(4rem, 8vw, 6.5rem);
}

.contact__inner {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 4rem;
  align-items: center;
}

.contact__kicker {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: .8rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--charcoal);
  opacity: .75;
  margin-bottom: .85rem;
}

.contact__title {
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  margin-bottom: 1rem;
}

.contact__body {
  color: var(--charcoal);
  opacity: .85;
  margin-bottom: 1.6rem;
  max-width: 52ch;
}

.contact__points {
  display: grid;
  gap: .7rem;
}

.contact__points li {
  display: flex;
  align-items: center;
  gap: .7rem;
  font-weight: 500;
  font-size: .95rem;
}

.contact__points i {
  color: var(--charcoal);
  opacity: .7;
}

/* right panel */
.contact__panel {
  position: relative;
}

.contact__visual {
  position: absolute;
  top: -1.6rem;
  right: -1.2rem;
  z-index: 0;
  color: var(--charcoal);
  opacity: .18;
  font-size: 5.5rem;
  pointer-events: none;
}

.contact__visual-snow {
  position: absolute;
  right: 1.2rem;
  bottom: .4rem;
  font-size: 2.4rem;
  opacity: .7;
}

.contact__card {
  position: relative;
  z-index: 1;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 2rem 2.2rem;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}

.contact__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(32,36,42,.16);
}

.contact__row {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(32,36,42,.08);
}

.contact__row-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--ivory);
  color: var(--copper);
  font-size: 1rem;
}

.contact__row-label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: .15rem;
}

.contact__row-value {
  font-weight: 500;
  font-size: .98rem;
}

.contact__row-value a {
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.contact__row-value a:hover {
  color: var(--copper);
  border-bottom-color: var(--copper);
}

.contact__cta {
  width: 100%;
  margin-top: 1.6rem;
}

/* ==========================================================================
   MAINTENANCE
   ========================================================================== */
.maintenance {
  background: var(--white);
  padding-block: clamp(4rem, 8vw, 6.5rem);
}

.maint__timeline {
  position: relative;
  margin-top: 2.8rem;
  display: grid;
  gap: 0;
}

.maint__timeline::before {
  content: "";
  position: absolute;
  top: 18px;
  bottom: 18px;
  left: 27px;
  width: 2px;
  background: var(--sage-soft);
}

.maint__step {
  position: relative;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 1.4rem;
  padding: 1.1rem 0 1.1rem 0;
}

.maint__step-icon {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--sage);
  color: var(--charcoal);
  font-size: 1.15rem;
  border: 4px solid var(--white);
  box-shadow: 0 0 0 2px var(--sage);
  transition: background-color .3s var(--ease), color .3s var(--ease), transform .3s var(--ease);
}

.maint__step:hover .maint__step-icon {
  background: var(--copper);
  color: var(--white);
  transform: scale(1.06);
}

.maint__step-body h3 {
  font-size: 1.12rem;
  margin-bottom: .3rem;
}

.maint__step-body p {
  color: var(--slate);
  font-size: .93rem;
  max-width: 68ch;
}

.maint__note {
  margin-top: 2.4rem;
  display: flex;
  align-items: flex-start;
  gap: .7rem;
  background: var(--ivory);
  border: 1px solid rgba(32,36,42,.08);
  border-radius: var(--radius-sm);
  padding: 1rem 1.2rem;
  color: var(--slate);
  font-size: .87rem;
  max-width: 76ch;
}

.maint__note i {
  color: var(--copper);
  margin-top: .2rem;
}

/* ==========================================================================
   SYSTEM UPDATE
   ========================================================================== */
.sysupdate {
  background: var(--ivory);
  padding-block: clamp(4rem, 8vw, 6.5rem);
}

.sysupdate__inner {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 3.5rem;
  align-items: center;
}

.sysupdate__visual {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.sysupdate__visual::after {
  content: "";
  position: absolute;
  right: 1rem;
  top: 1rem;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--sage);
  opacity: .9;
  z-index: 1;
}

.sysupdate__visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform .6s var(--ease);
}

.sysupdate__visual:hover img {
  transform: scale(1.03);
}

.sysupdate__copy .section-head__title {
  margin-bottom: 1rem;
}

.sysupdate__body {
  color: var(--slate);
  margin-bottom: 1.4rem;
  max-width: 56ch;
}

.sysupdate__signs {
  display: grid;
  gap: .6rem;
  margin-bottom: 1.6rem;
}

.sysupdate__signs li {
  display: flex;
  gap: .7rem;
  align-items: baseline;
  font-size: .95rem;
  color: var(--charcoal);
}

.sysupdate__signs span {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--copper);
}

.sysupdate__tail {
  color: var(--slate);
  font-size: .93rem;
  margin-bottom: 1.8rem;
  max-width: 56ch;
  border-left: 3px solid var(--copper);
  padding-left: 1rem;
}

/* ==========================================================================
   TIPS
   ========================================================================== */
.tips {
  background: var(--white);
  padding-block: clamp(4rem, 8vw, 6.5rem);
}

.tips__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
  margin-top: 2.8rem;
}

.tip {
  position: relative;
  background: var(--ivory);
  border: 1px solid rgba(32,36,42,.07);
  border-radius: var(--radius);
  padding: 2rem 1.6rem 1.7rem;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}

.tip:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-sm);
  border-color: rgba(183,123,87,.4);
}

.tip__num {
  position: absolute;
  top: 1.1rem;
  right: 1.3rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--sage);
  transition: color .3s var(--ease);
}

.tip:hover .tip__num {
  color: var(--copper);
}

.tip h3 {
  font-size: 1.08rem;
  margin-bottom: .5rem;
  padding-right: 2rem;
}

.tip p {
  font-size: .9rem;
  color: var(--slate);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  background: var(--charcoal);
  color: rgba(245,241,232,.78);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  padding-block: 3.5rem 2.8rem;
}

.brand--footer .brand__mark {
  background: var(--copper);
  color: var(--ivory);
}

.brand--footer .brand__name {
  color: var(--ivory);
}

.brand--footer .brand__tag {
  color: rgba(245,241,232,.55);
}

.footer__desc {
  margin-top: 1.2rem;
  font-size: .9rem;
  max-width: 34ch;
}

.footer__heading {
  font-size: .85rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--sage);
  margin-bottom: 1.2rem;
}

.footer__links {
  display: grid;
  gap: .7rem;
  font-size: .92rem;
}

.footer__links a {
  transition: color .2s var(--ease);
}

.footer__links a:hover {
  color: var(--sage);
}

.footer__links li {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
}

.footer__links i {
  color: var(--copper);
  margin-top: .25rem;
  font-size: .85rem;
}

.footer__bar {
  border-top: 1px solid rgba(245,241,232,.12);
}

.footer__bar-inner {
  padding-block: 1.1rem;
  font-size: .82rem;
  color: rgba(245,241,232,.45);
}

/* ==========================================================================
   REVEAL ANIMATIONS
   ========================================================================== */
.reveal,
.reveal-left,
.reveal-right,
.reveal-scale {
  opacity: 0;
  transition: opacity .8s var(--ease),
              transform .8s var(--ease);
  transition-delay: var(--reveal-delay, 0s);
  will-change: opacity, transform;
}

.reveal {
  transform: translateY(28px);
}

.reveal-left {
  transform: translateX(-32px);
}

.reveal-right {
  transform: translateX(32px);
}

.reveal-scale {
  transform: scale(.96);
}

.reveal.is-visible,
.reveal-left.is-visible,
.reveal-right.is-visible,
.reveal-scale.is-visible {
  opacity: 1;
  transform: none;
}

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

/* ---------- tablet / small desktop ---------- */
@media (max-width: 1080px) {
  .hero__inner,
  .contact__inner,
  .sysupdate__inner {
    gap: 2.5rem;
  }

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

  .service--feature {
    grid-template-columns: 1.1fr .9fr;
  }

  .hero__panel {
    left: -0.5rem;
  }
}

/* ---------- tablet ---------- */
@media (max-width: 992px) {
  html {
    scroll-padding-top: 78px;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hero__visual {
    max-width: 560px;
  }

  .hero__panel {
    left: 1rem;
  }

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

  .about__inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .about__accent {
    display: none;
  }

  .why__inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .sysupdate__visual {
    max-width: 640px;
  }

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

  .contact__inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .contact__visual {
    display: none;
  }

  /* navigation collapses to hamburger */
  .hamburger {
    display: flex;
  }

  .header__cta {
    display: none;
  }

  .nav {
    position: fixed;
    top: 78px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid rgba(32,36,42,.1);
    box-shadow: var(--shadow-md);
    max-height: calc(100vh - 78px);
    overflow-y: auto;
    padding: 1rem 1.5rem 1.6rem;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s;
    z-index: 890;
  }

  .nav.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

  .nav__link {
    display: block;
    width: 100%;
    padding: .95rem .5rem;
    border-bottom: 1px solid rgba(32,36,42,.07);
    font-size: 1rem;
  }

  .nav__link::after {
    left: .5rem;
    width: 34px;
    -webkit-transform-origin: left;
    transform-origin: left;
  }
}

/* ---------- small tablet / landscape phones ---------- */
@media (max-width: 768px) {
  .topbar__item--location {
    display: none;
  }

  .topbar__inner {
    justify-content: flex-end;
    min-height: 36px;
  }

  .footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

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

  .service__feature-visual {
    min-height: 220px;
  }

  .hero__flow {
    display: none;
  }

  .section-head--split {
    align-items: flex-start;
  }

  .maint__timeline::before {
    left: 22px;
  }

  .maint__step {
    grid-template-columns: 44px 1fr;
    gap: 1rem;
  }

  .maint__step-icon {
    width: 44px;
    height: 44px;
    font-size: .95rem;
  }
}

/* ---------- phones ---------- */
@media (max-width: 576px) {
  .container {
    width: min(100% - 2rem, var(--container));
  }

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

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

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

  .why__item {
    gap: 1rem;
  }

  .hero__actions {
    align-items: stretch;
    flex-direction: column;
    gap: 1rem;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .hero__textlink {
    justify-content: center;
    padding-block: .4rem;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 1.8rem;
  }

  .contact__card {
    padding: 1.6rem 1.4rem;
  }
}

/* ---------- small phones ---------- */
@media (max-width: 375px) {
  .brand__tag {
    display: none;
  }

  .topbar__item--phone span {
    font-size: .78rem;
  }

  .header__inner {
    min-height: 70px;
    gap: .6rem;
  }

  .nav {
    top: 70px;
    max-height: calc(100vh - 70px);
  }

  .hero__title {
    font-size: 1.75rem;
  }
}

/* ==========================================================================
   REDUCED MOTION
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .reveal-left,
  .reveal-right,
  .reveal-scale {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .hero__frame img,
  .about__frame img,
  .service__feature-visual img,
  .sysupdate__visual img {
    transition: none;
  }

  .fa-spin-slow {
    animation: none !important;
  }

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}