/* ============================================================
   IoTall — iotall.ir
   Palette: deep teal / electric cyan on cool charcoal-slate,
            resolving into soft mist white
   ============================================================ */

:root {
  /* ink family */
  --ink-900: #060E12;
  --ink-800: #0A1418;
  --ink-700: #0E1F26;
  --ink-600: #143038;

  /* accents */
  --teal-700: #0B6E77;
  --teal-500: #0FB3BE;
  --cyan-400: #38E1E6;
  --cyan-200: #9FF0F5;
  --aqua-400: #5FF3D6;

  /* light family */
  --mist-000: #FBFDFD;
  --mist-100: #F3F8F9;
  --mist-200: #E8F0F2;
  --mist-300: #DAE6E9;

  /* text */
  --on-dark: #EAF6F8;
  --on-dark-mut: #9DB6BE;
  --on-light: #0D2029;
  --on-light-mut: #4E6A75;

  /* lines */
  --line-dark: rgba(159, 240, 245, .14);
  --line-light: rgba(13, 32, 41, .12);

  --wrap: 1180px;
  --pad: clamp(1.25rem, 4vw, 3rem);
  --sec-y: clamp(5.5rem, 11vw, 9.5rem);

  --fa: "Vazirmatn", sans-serif;
  --lat: "Sora", sans-serif;
  --display: "Unbounded", sans-serif;

  --ease: cubic-bezier(.2, .7, .2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: var(--fa);
  font-weight: 400;
  color: var(--on-light);
  background: var(--ink-800);
  line-height: 1.85;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, p, ol { margin: 0; }
ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
svg { display: block; }

.lat { font-family: var(--lat); font-weight: 600; letter-spacing: .01em; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad);
}

/* ── selection & focus ───────────────────────────────── */
::selection { background: var(--cyan-400); color: var(--ink-900); }
:focus-visible { outline: 2px solid var(--cyan-400); outline-offset: 3px; border-radius: 2px; }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 60;
  transition: background .4s var(--ease), border-color .4s var(--ease), backdrop-filter .4s;
  border-block-end: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(8, 18, 22, .82);
  backdrop-filter: blur(14px) saturate(140%);
  border-block-end-color: var(--line-dark);
}

.nav__inner {
  max-width: var(--wrap);
  margin-inline: auto;
  padding: clamp(.9rem, 2vw, 1.35rem) var(--pad);
  display: flex;
  align-items: center;
  gap: clamp(1rem, 4vw, 3rem);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.06rem;
  letter-spacing: -.02em;
  color: var(--on-dark);
}
.nav__accent { color: var(--cyan-400); }
.nav__mark { width: 22px; height: 22px; color: var(--cyan-400); }
.nav__mark circle:first-child { transition: transform .5s var(--ease); transform-origin: center; }
.nav__brand:hover .nav__mark circle:first-child { transform: scale(1.35); }

.nav__links {
  display: flex;
  gap: clamp(1.1rem, 2.6vw, 2.2rem);
  margin-inline-end: auto;
  font-size: .96rem;
  color: var(--on-dark-mut);
}
.nav__links a { position: relative; padding-block: .25rem; transition: color .3s; }
.nav__links a::after {
  content: "";
  position: absolute;
  inset-block-end: 0;
  inset-inline-start: 0;
  width: 100%;
  height: 1px;
  background: var(--cyan-400);
  transform: scaleX(0);
  transform-origin: left; /* document is RTL: collapse toward the line end */
  transition: transform .38s var(--ease);
}
.nav__links a:hover { color: var(--on-dark); }
.nav__links a:hover::after { transform: scaleX(1); transform-origin: right; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  --btn-r: 4px;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .82rem 1.6rem;
  border-radius: var(--btn-r);
  font-family: var(--fa);
  font-weight: 500;
  font-size: 1rem;
  line-height: 1;
  overflow: hidden;
  isolation: isolate;
  transition: transform .3s var(--ease), color .3s, border-color .3s, background-color .3s;
  will-change: transform;
}
.btn:active { transform: translateY(1px); }

.btn__arrow { width: 18px; height: 18px; transition: transform .35s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(-5px); }

/* primary */
.btn--primary {
  background: linear-gradient(105deg, var(--cyan-400), var(--aqua-400));
  color: var(--ink-900);
  font-weight: 700;
}
.btn--primary::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(105deg, var(--aqua-400), #C8FFF6);
  opacity: 0;
  transition: opacity .35s var(--ease);
}
.btn--primary:hover::before { opacity: 1; }
.btn--primary:hover { transform: translateY(-2px); }

/* outline on dark */
.btn--line {
  border: 1px solid var(--line-dark);
  color: var(--on-dark);
  background: rgba(159, 240, 245, .04);
}
.btn--line:hover {
  border-color: rgba(56, 225, 230, .6);
  background: rgba(56, 225, 230, .1);
  transform: translateY(-2px);
}

/* outline on light */
.btn--line-dark {
  border-color: var(--line-light);
  color: var(--on-light);
  background: transparent;
}
.btn--line-dark:hover {
  border-color: var(--teal-500);
  background: rgba(15, 179, 190, .08);
}

/* ghost (nav) */
.btn--ghost {
  padding: .6rem 1.15rem;
  font-size: .93rem;
  border: 1px solid var(--line-dark);
  color: var(--on-dark);
}
.btn--ghost:hover { border-color: var(--cyan-400); color: var(--cyan-200); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: clamp(7rem, 16vh, 10rem) var(--pad) clamp(5rem, 12vh, 8rem);
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(120% 90% at 50% 108%, rgba(15, 179, 190, .30), transparent 62%),
    radial-gradient(90% 70% at 82% 6%, rgba(11, 110, 119, .38), transparent 60%),
    linear-gradient(178deg, #0A1418 0%, #0B1D24 45%, #06171D 100%);
}

.hero__canvas { position: absolute; inset: 0; z-index: -1; }

.hero__art {
  position: absolute;
  inset: -3%;
  width: 106%;
  height: 106%;
}

/* parallax carrier — keeps ambient keyframes off the transformed node */
.par { position: absolute; inset: 0; will-change: transform; }

/* atmospheric aurora */
.aurora {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .55;
}
.aurora--a {
  width: 46vw; height: 46vw; min-width: 320px; min-height: 320px;
  inset-block-start: -8vw; inset-inline-start: 4vw;
  background: radial-gradient(circle, rgba(15, 179, 190, .55), transparent 68%);
  animation: drift-a 22s ease-in-out infinite alternate;
}
.aurora--b {
  width: 40vw; height: 40vw; min-width: 300px; min-height: 300px;
  inset-block-end: -10vw; inset-inline-end: 2vw;
  background: radial-gradient(circle, rgba(56, 225, 230, .34), transparent 70%);
  animation: drift-b 27s ease-in-out infinite alternate;
}
@keyframes drift-a {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(4vw, 3vw, 0) scale(1.12); }
}
@keyframes drift-b {
  from { transform: translate3d(0, 0, 0) scale(1.08); }
  to   { transform: translate3d(-5vw, -2vw, 0) scale(.94); }
}

/* grain + vignette */
.hero__grain {
  position: absolute;
  inset: 0;
  opacity: .16;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
}
.hero__fade {
  position: absolute;
  inset-inline: 0;
  inset-block-end: 0;
  height: 34%;
  background: linear-gradient(to bottom, transparent, rgba(6, 14, 18, .55) 60%, #060E12);
}

/* svg motion */
.route {
  stroke-dasharray: 260 1600;
  animation: trail 14s linear infinite;
}
@keyframes trail { from { stroke-dashoffset: 1860; } to { stroke-dashoffset: 0; } }

.ring {
  transform-box: fill-box;
  transform-origin: center;
  animation: ping 4.4s ease-out infinite;
}
@keyframes ping {
  0%   { transform: scale(.45); opacity: .85; }
  70%  { transform: scale(1.6); opacity: 0; }
  100% { transform: scale(1.6); opacity: 0; }
}
.node-pulse {
  transform-box: fill-box;
  transform-origin: center;
  animation: breathe 4.4s ease-in-out infinite;
}
@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: .9; }
  50%      { transform: scale(1.25); opacity: 1; }
}

/* hero content */
.hero__content {
  position: relative;
  text-align: center;
  max-width: min(92vw, 56rem);
}

.brand {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(3.9rem, 15.5vw, 13rem);
  line-height: .84;
  letter-spacing: -.045em;
  margin-block-end: clamp(1.1rem, 2.6vw, 1.9rem);
  direction: ltr;
}
.brand span {
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand__io { background-image: linear-gradient(170deg, #FFFFFF 10%, #D8F3F6 90%); }
.brand__all { background-image: linear-gradient(170deg, #7FEFF2 5%, var(--teal-500) 95%); }

.brand__rule {
  width: 74px;
  height: 1px;
  margin: 0 auto clamp(1.3rem, 3vw, 2rem);
  background: linear-gradient(90deg, transparent, var(--cyan-400), transparent);
}

.hero__headline {
  font-size: clamp(.78rem, 3.4vw, 2rem);
  font-weight: 700;
  line-height: 1.45;
  color: var(--on-dark);
  letter-spacing: -.01em;
  margin-block-end: .95rem;
  white-space: nowrap;
  max-width: none;
}

.hero__sub {
  font-size: clamp(.98rem, 1.35vw, 1.12rem);
  font-weight: 300;
  color: var(--on-dark-mut);
  max-width: 52ch;
  margin-inline: auto;
  margin-block-end: clamp(2rem, 4vw, 2.9rem);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
  justify-content: center;
}

.hero__cue {
  position: absolute;
  inset-block-end: 2.2rem;
  inset-inline-start: 50%;
  width: 1px;
  height: 58px;
  background: linear-gradient(to bottom, transparent, rgba(159, 240, 245, .55));
  transform-origin: top;
  animation: cue 2.8s ease-in-out infinite;
}
@keyframes cue {
  0%, 100% { transform: scaleY(.35); opacity: .35; }
  50%      { transform: scaleY(1);   opacity: 1; }
}

/* ============================================================
   SECTIONS — shared
   ============================================================ */
.section { position: relative; padding-block: var(--sec-y); }
.section > .wrap { position: relative; z-index: 1; }

.section--light {
  color: var(--on-light);
  background:
    radial-gradient(60% 50% at 88% 0%, rgba(15, 179, 190, .10), transparent 70%),
    linear-gradient(180deg, var(--mist-000), var(--mist-200));
}
.section--light::before,
.section--tint::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(13, 32, 41, .10) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: .5;
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 35%, #000 65%, transparent);
  mask-image: linear-gradient(180deg, transparent, #000 35%, #000 65%, transparent);
}
.section--tint {
  color: var(--on-light);
  background: linear-gradient(180deg, var(--mist-200), #DFEAED);
}

.section--deep {
  color: var(--on-dark);
  overflow: hidden;
  background:
    radial-gradient(80% 120% at 12% 0%, rgba(11, 110, 119, .55), transparent 62%),
    linear-gradient(180deg, #08171D, #0B2028 55%, #07141A);
}
.deep__art { position: absolute; inset: 0; width: 100%; height: 100%; }
/* scrim keeps the route art atmospheric without competing with the copy */
.section--deep::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7, 20, 26, .35), rgba(7, 20, 26, .78));
  pointer-events: none;
}

.sec-head { margin-block-end: clamp(2.8rem, 6vw, 4.6rem); max-width: 40ch; }

.sec-kicker {
  display: block;
  font-family: var(--lat);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .26em;
  color: var(--teal-500);
  margin-block-end: .9rem;
  direction: ltr;
  text-align: start;
}
.section--deep .sec-kicker { color: var(--cyan-400); }

.sec-title {
  font-size: clamp(1.6rem, 3.6vw, 2.7rem);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -.015em;
  text-wrap: balance;
}

/* ============================================================
   PRODUCTS — three pillars, hairlines, no cards
   ============================================================ */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-block-start: 1px solid var(--line-light);
}
.pillar {
  padding: clamp(2.2rem, 4vw, 3.2rem) clamp(1.4rem, 2.6vw, 2.4rem);
  padding-inline-start: clamp(1.4rem, 2.6vw, 2.4rem);
}
.pillar + .pillar { border-inline-start: 1px solid var(--line-light); }

.pillar__art {
  color: var(--teal-700);
  margin-block-end: 1.6rem;
  transition: color .45s var(--ease);
}
.pillar__art svg { width: 100%; max-width: 168px; height: auto; }
.pillar:hover .pillar__art { color: var(--teal-500); }

.pillar__idx {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: .88rem;
  font-weight: 500;
  color: var(--teal-500);
  letter-spacing: .12em;
  margin-block-end: .6rem;
}
.pillar__idx::after {
  content: "";
  flex: 0 0 28px;
  height: 1px;
  background: currentColor;
  opacity: .45;
}
.pillar__title {
  font-size: clamp(1.14rem, 1.9vw, 1.4rem);
  font-weight: 700;
  margin-block-end: .7rem;
  letter-spacing: -.01em;
}
.pillar__title .lat { font-size: .85em; color: var(--teal-700); }
.pillar__text {
  font-size: .99rem;
  font-weight: 300;
  color: var(--on-light-mut);
  line-height: 2;
}
.pillar__links {
  list-style: none;
  margin: 1.15rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: .45rem;
}
.pillar__link {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  font-size: .9rem;
  font-weight: 500;
  color: var(--teal-700);
  padding-block: .4rem;
  border-block-end: 1px solid transparent;
  transition: color .3s var(--ease), border-color .3s var(--ease);
}
.pillar__link-icon {
  width: 1.35rem;
  height: 1.35rem;
  flex-shrink: 0;
  opacity: .9;
  transition: transform .35s var(--ease), opacity .3s;
}
.pillar__link:hover {
  border-block-end-color: rgba(11, 110, 119, .35);
  color: var(--teal-500);
}
.pillar__link:hover .pillar__link-icon {
  opacity: 1;
  transform: translateY(-1px);
}

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.6rem, 4vw, 3.4rem);
  padding-block-start: 2.6rem;
}
.steps::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--teal-500), transparent);
  opacity: .55;
}
.step { position: relative; }
.step__dot {
  position: absolute;
  inset-block-start: -2.6rem;
  inset-inline-start: 0;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--mist-100);
  border: 2px solid var(--teal-500);
  transform: translate(0, -50%);
}

.step__idx {
  display: block;
  font-size: .8rem;
  letter-spacing: .12em;
  color: var(--teal-700);
  margin-block-end: .55rem;
}
.step__title {
  font-size: clamp(1.1rem, 1.8vw, 1.32rem);
  font-weight: 700;
  margin-block-end: .6rem;
}
.step__text {
  font-size: .97rem;
  font-weight: 300;
  color: var(--on-light-mut);
  line-height: 2;
  max-width: 34ch;
}

/* ============================================================
   USE CASES
   ============================================================ */
.cases {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-block-start: 1px solid var(--line-dark);
}
.case {
  padding: clamp(2rem, 3.6vw, 2.8rem) clamp(1.3rem, 2.4vw, 2.2rem);
  position: relative;
  transition: background-color .4s var(--ease);
}
.case + .case { border-inline-start: 1px solid var(--line-dark); }
.case::after {
  content: "";
  position: absolute;
  inset-block-start: -1px;
  inset-inline-start: 0;
  width: 100%;
  height: 1px;
  background: var(--cyan-400);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .5s var(--ease);
}
.case:hover::after { transform: scaleX(1); transform-origin: right; }
.case:hover { background: rgba(159, 240, 245, .035); }

.case__title {
  font-size: clamp(1.08rem, 1.8vw, 1.3rem);
  font-weight: 700;
  margin-block-end: .7rem;
  color: var(--on-dark);
}
.case__text {
  font-size: .97rem;
  font-weight: 300;
  color: var(--on-dark-mut);
  line-height: 2;
}

/* ============================================================
   FINAL CTA
   ============================================================ */
.section--cta {
  color: var(--on-light);
  background:
    radial-gradient(70% 80% at 50% 0%, rgba(15, 179, 190, .16), transparent 68%),
    linear-gradient(180deg, var(--mist-000), var(--mist-200));
}
.cta-wrap { max-width: 40rem; }
.cta-head { text-align: center; margin-block-end: 2.4rem; }
.sec-kicker--dark { color: var(--teal-700); }
.cta__title {
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.42;
  letter-spacing: -.02em;
  margin-block-end: .85rem;
  text-wrap: balance;
}
.cta__text {
  font-size: 1.03rem;
  font-weight: 300;
  color: var(--on-light-mut);
  max-width: 32rem;
  margin-inline: auto;
}

/* ── request form ───────────────────────────────────── */
.request-form { text-align: start; }
.request-form__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.15rem 1.25rem;
}
.field {
  display: flex;
  flex-direction: column;
  gap: .45rem;
  min-width: 0;
}
.field--full { grid-column: 1 / -1; }
.field__label {
  font-size: .88rem;
  font-weight: 500;
  color: var(--on-light);
}
.field__opt {
  font-weight: 300;
  color: var(--on-light-mut);
}
.field__input {
  width: 100%;
  appearance: none;
  border: 1px solid var(--line-light);
  border-radius: 4px;
  background: rgba(255, 255, 255, .72);
  color: var(--on-light);
  font: inherit;
  font-size: .98rem;
  padding: .85rem 1rem;
  transition: border-color .25s var(--ease), background-color .25s var(--ease), box-shadow .25s var(--ease);
}
.field__input::placeholder { color: #8AA0A8; font-weight: 300; }
.field__input:hover { border-color: rgba(11, 110, 119, .35); }
.field__input:focus {
  outline: none;
  border-color: var(--teal-500);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(15, 179, 190, .18);
}
.field__input.is-invalid {
  border-color: #C45B5B;
  box-shadow: 0 0 0 3px rgba(196, 91, 91, .15);
}
.field__select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 20 20'%3E%3Cpath d='M5 8l5 5 5-5' fill='none' stroke='%234E6A75' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: left 1rem center;
  padding-inline-end: 1rem;
  padding-inline-start: 2.5rem;
  cursor: pointer;
}
.field__textarea {
  resize: vertical;
  min-height: 8.5rem;
  line-height: 1.75;
}
.request-form__actions {
  display: flex;
  justify-content: center;
  margin-block-start: 1.75rem;
}
.request-form__error {
  margin-block-start: 1rem;
  color: #A63D3D;
  font-size: .92rem;
  text-align: center;
}
.request-form.is-sent .request-form__grid,
.request-form.is-sent .request-form__actions,
.request-form.is-sent .request-form__error {
  display: none;
}
.request-form__success {
  text-align: center;
  padding-block: 1.5rem .25rem;
}
.request-form__success-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-block-end: .55rem;
  color: var(--teal-700);
}
.request-form__success-text {
  font-weight: 300;
  color: var(--on-light-mut);
  margin-block-end: 1.5rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--ink-900);
  color: var(--on-dark-mut);
  padding-block: clamp(3rem, 6vw, 4.5rem);
  border-block-start: 1px solid var(--line-dark);
}
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.6rem 2.5rem;
}
.footer__brand { display: flex; align-items: baseline; gap: .9rem; direction: ltr; }
.footer__word {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -.03em;
  color: var(--on-dark);
}
.footer__domain {
  font-family: var(--lat);
  font-size: .88rem;
  color: var(--cyan-400);
}
.footer__links { display: flex; flex-wrap: wrap; gap: 1.4rem; font-size: .95rem; }
.footer__links a { transition: color .3s; }
.footer__links a:hover { color: var(--cyan-200); }
.footer__note { font-size: .86rem; font-weight: 300; color: #6E8892; width: 100%; }

/* ============================================================
   REVEAL
   ============================================================ */
.reveal-ready [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .9s var(--ease) var(--d, 0ms), transform .9s var(--ease) var(--d, 0ms);
}
.reveal-ready [data-reveal].is-in { opacity: 1; transform: none; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .pillars, .cases { grid-template-columns: 1fr; }
  .pillar + .pillar, .case + .case {
    border-inline-start: 0;
    border-block-start: 1px solid var(--line-light);
  }
  .case + .case { border-block-start-color: var(--line-dark); }
  .pillar__art svg { max-width: 128px; }

  .steps { grid-template-columns: 1fr; gap: 2.4rem; padding-block-start: 0; padding-inline-start: 1.6rem; }
  .steps::before {
    inset-block: 0;
    inset-inline-start: 0;
    inset-inline-end: auto;
    width: 1px;
    height: auto;
    background: linear-gradient(180deg, transparent, var(--teal-500), transparent);
  }
  .step__dot { inset-block-start: .55rem; inset-inline-start: -1.6rem; transform: translate(50%, 0); }
  .step__text { max-width: none; }
}

@media (max-width: 720px) {
  .nav__links { display: none; }
  .nav__brand { margin-inline-end: auto; }
  .hero__cue { display: none; }
  .hero__actions { width: min(340px, 100%); margin-inline: auto; }
  .hero__actions .btn { width: 100%; justify-content: center; }
  .request-form__grid { grid-template-columns: 1fr; }
  .request-form__actions .btn { width: 100%; justify-content: center; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
}

/* ============================================================
   MOTION PREFERENCES
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .reveal-ready [data-reveal] { opacity: 1; transform: none; }
}