/* ============================================================
   HEI — advertising site
   ============================================================ */

:root {
  --blue: #1862A0;
  --blue-dark: #12497A;
  --blue-deep: #0B2F51;
  --blue-50: #EAF3FB;
  --blue-100: #D3E6F7;
  --navy: #0A2138;
  --ink: #12293F;
  --muted: #5B7288;
  --line: #E2ECF5;
  --bg: #FFFFFF;
  --bg-soft: #F5F9FD;
  --teal: #0FA98A;
  --amber: #E8930C;
  --red: #D64545;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow-sm: 0 2px 10px rgba(11, 47, 81, 0.07);
  --shadow-md: 0 12px 34px rgba(11, 47, 81, 0.10);
  --shadow-lg: 0 30px 70px rgba(11, 47, 81, 0.18);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  width: min(1160px, 100% - 2.5rem);
  margin-inline: auto;
}

.icon { width: 1.1em; height: 1.1em; flex: none; }

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; font-weight: 800; }
h1 { font-size: clamp(2.4rem, 5.4vw, 4rem); }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.75rem); }
h3 { font-size: 1.15rem; }

.grad {
  background: linear-gradient(100deg, var(--blue) 0%, #37A5D9 55%, var(--teal) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  margin-bottom: 1.1rem;
}
.eyebrow--amber { color: var(--amber); background: #FEF4E3; border-color: #F8E2BC; }

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  font-family: var(--font);
  font-weight: 700;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, color 0.18s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px) scale(0.99); }
.btn--sm { padding: 0.5rem 1.1rem; font-size: 0.9rem; }
.btn--lg { padding: 0.95rem 1.9rem; font-size: 1.02rem; }
.btn--primary { background: var(--blue); color: #fff; box-shadow: 0 10px 24px rgba(24, 98, 160, 0.32); }
.btn--primary:hover { background: var(--blue-dark); box-shadow: 0 14px 30px rgba(24, 98, 160, 0.42); transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--blue); border-color: var(--blue-100); }
.btn--ghost:hover { border-color: var(--blue); background: var(--blue-50); transform: translateY(-2px); }
.btn--light { background: #fff; color: var(--blue-deep); box-shadow: 0 10px 26px rgba(4, 24, 44, 0.28); }
.btn--light:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(4, 24, 44, 0.36); }

/* ---------------- Nav ---------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.nav.is-scrolled { border-color: var(--line); box-shadow: var(--shadow-sm); }

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 1rem;
}
.nav__brand { display: flex; align-items: center; gap: 0.6rem; }
.nav__logo { width: 30px; height: 43px; object-fit: contain; }
.nav__name {
  font-weight: 800;
  font-size: clamp(0.88rem, 1.9vw, 1.2rem);
  letter-spacing: -0.02em;
  color: var(--blue-deep);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.nav__links { display: flex; align-items: center; gap: 1.7rem; }
.nav__links a { font-weight: 600; font-size: 0.95rem; color: var(--ink); position: relative; }
.nav__links a:not(.nav__cta)::after {
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 2px;
  background: var(--blue);
  border-radius: 2px;
  transition: width 0.22s ease;
}
.nav__links a:not(.nav__cta):hover::after { width: 100%; }
.nav__links a:not(.nav__cta):hover { color: var(--blue); }

.nav__toggle { display: none; background: none; border: 0; padding: 10px; cursor: pointer; }
.nav__toggle span {
  display: block;
  width: 24px; height: 2.5px;
  background: var(--ink);
  border-radius: 2px;
  margin: 5px 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav__toggle.is-open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav__toggle.is-open span:nth-child(2) { opacity: 0; }
.nav__toggle.is-open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  padding: clamp(3.5rem, 8vw, 6.5rem) 0 clamp(3rem, 7vw, 5.5rem);
  background:
    radial-gradient(1100px 520px at 85% -10%, rgba(24, 98, 160, 0.12), transparent 62%),
    radial-gradient(760px 420px at -10% 20%, rgba(15, 169, 138, 0.10), transparent 60%),
    linear-gradient(180deg, #FBFDFF 0%, #FFFFFF 100%);
  overflow: hidden;
}
.hero__glow {
  position: absolute;
  top: -180px; right: -140px;
  width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(55, 165, 217, 0.22), transparent 65%);
  filter: blur(10px);
  pointer-events: none;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.hero__lead {
  margin-top: 1.2rem;
  font-size: clamp(1.02rem, 1.5vw, 1.16rem);
  color: var(--muted);
  max-width: 34rem;
}
.hero__lead em { font-style: normal; color: var(--blue); font-weight: 600; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 2rem; }
.hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.5rem;
  list-style: none;
  margin-top: 2rem;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.94rem;
}
.hero__facts li { display: flex; align-items: center; gap: 0.45rem; }
.hero__facts .icon { color: var(--teal); }

.hero__price {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 1.2rem;
  font-size: 0.97rem;
  color: var(--muted);
}
.hero__price strong { color: var(--ink); font-weight: 700; }
.hero__price svg { width: 22px; height: 22px; flex: none; color: var(--blue); }

/* ---------------- Pricing ---------------- */
.pricing {
  position: relative;
  background:
    radial-gradient(700px 360px at 12% 8%, rgba(24, 98, 160, 0.10), transparent 60%),
    radial-gradient(620px 340px at 92% 92%, rgba(15, 169, 138, 0.10), transparent 60%),
    #FFFFFF;
}
.pricing__plans {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.6rem;
  max-width: 420px;
  margin-inline: auto;
}

.plan {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 2.3rem 2rem 2rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}
.plan:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }

.plan__name {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.plan__price { display: flex; align-items: baseline; gap: 0.55rem; margin-top: 1rem; }
.plan__price strong {
  font-size: clamp(2.6rem, 5vw, 3.3rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--blue-deep);
}
.plan__price span { font-weight: 600; font-size: 0.98rem; color: var(--muted); }
.plan__sub { margin-top: 0.55rem; font-size: 0.93rem; color: var(--muted); }

.plan__list {
  list-style: none;
  margin: 1.5rem 0 1.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.72rem;
}
.plan__list li {
  position: relative;
  padding-left: 1.8rem;
  font-size: 0.96rem;
  color: var(--ink);
}
.plan__list li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  top: 0;
  width: 18px;
  height: 18px;
  line-height: 18px;
  text-align: center;
  font-size: 0.7rem;
  font-weight: 800;
  color: #fff;
  background: var(--teal);
  border-radius: 50%;
}
.plan__btn { width: 100%; margin-top: auto; }

.plan--featured {
  background: linear-gradient(165deg, #1E6FB4 0%, var(--blue-dark) 62%, var(--blue-deep) 100%);
  border-color: transparent;
  color: #fff;
  overflow: hidden;
  box-shadow: 0 26px 55px rgba(11, 47, 81, 0.35);
}
.plan--featured::after {
  content: "";
  position: absolute;
  top: -110px; right: -90px;
  width: 240px; height: 240px;
  background: radial-gradient(circle, rgba(127, 196, 236, 0.35), transparent 65%);
  pointer-events: none;
}
.plan--featured > * { position: relative; z-index: 1; }
.plan--featured .plan__name { color: rgba(255, 255, 255, 0.72); }
.plan--featured .plan__price strong { color: #fff; }
.plan--featured .plan__price span { color: rgba(255, 255, 255, 0.8); }
.plan--featured .plan__sub { color: rgba(255, 255, 255, 0.7); }
.plan--featured .plan__list li { color: rgba(255, 255, 255, 0.94); }
.plan--featured .plan__list li::before { background: rgba(255, 255, 255, 0.22); }
.plan__badge {
  position: absolute;
  top: 1.15rem;
  right: 1.15rem;
  z-index: 2;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: #7A4E00;
  background: #FFE3A3;
  padding: 0.36rem 0.75rem;
  border-radius: 999px;
}

.pricing__note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  max-width: 720px;
  margin: 2.2rem auto 0;
  padding: 1rem 1.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--blue-deep);
  background: var(--blue-50);
  border: 1px dashed var(--blue-100);
  border-radius: 18px;
}
.pricing__note svg { width: 20px; height: 20px; flex: none; color: var(--blue); }

/* ---------------- Phone mockup ---------------- */
.hero__visual { position: relative; display: flex; justify-content: center; }

.phone {
  position: relative;
  width: min(320px, 82vw);
  background: linear-gradient(160deg, #0E243B, #0A1B2D);
  border-radius: 44px;
  padding: 12px;
  box-shadow: var(--shadow-lg), inset 0 0 0 2px rgba(255, 255, 255, 0.08);
  transform: rotate(2.5deg);
  animation: floatY 7s ease-in-out infinite;
}
@keyframes floatY {
  0%, 100% { transform: rotate(2.5deg) translateY(0); }
  50% { transform: rotate(2.5deg) translateY(-14px); }
}
.phone__notch {
  position: absolute;
  top: 20px; left: 50%;
  transform: translateX(-50%);
  width: 108px; height: 22px;
  background: #0A1B2D;
  border-radius: 999px;
  z-index: 3;
}
.phone__screen {
  background: linear-gradient(180deg, #F7FBFF 0%, #EDF5FC 100%);
  border-radius: 34px;
  padding: 52px 20px 24px;
  min-height: 560px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow: hidden;
}

.app__top { display: flex; align-items: center; gap: 10px; }
.app__logo { width: 26px; height: 37px; object-fit: contain; }
.app__title { font-weight: 800; font-size: 1.35rem; color: var(--blue-deep); letter-spacing: -0.02em; }

.app__status {
  display: flex; align-items: center; gap: 9px;
  font-weight: 700; font-size: 0.98rem;
  background: #E4F7F1;
  color: #0A7A63;
  border: 1px solid #BFEDE3;
  padding: 0.7rem 0.9rem;
  border-radius: 14px;
}
.app__pulse {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 0 rgba(15, 169, 138, 0.55);
  animation: pulse 1.8s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(15, 169, 138, 0.55); }
  70% { box-shadow: 0 0 0 12px rgba(15, 169, 138, 0); }
  100% { box-shadow: 0 0 0 0 rgba(15, 169, 138, 0); }
}

.app__chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-size: 0.76rem; font-weight: 600;
  background: #fff; color: var(--muted);
  border: 1px solid var(--line);
  padding: 0.34rem 0.7rem;
  border-radius: 999px;
}
.chip--ok { color: #0A7A63; border-color: #BFEDE3; background: #F1FBF8; }

.app__wave {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 4px; height: 74px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
}
.app__wave span {
  flex: 1;
  background: linear-gradient(180deg, #37A5D9, var(--blue));
  border-radius: 3px;
  animation: wave 1.15s ease-in-out infinite;
  min-height: 8px;
}
.app__wave span:nth-child(1) { animation-delay: 0s; }
.app__wave span:nth-child(2) { animation-delay: 0.09s; }
.app__wave span:nth-child(3) { animation-delay: 0.18s; }
.app__wave span:nth-child(4) { animation-delay: 0.27s; }
.app__wave span:nth-child(5) { animation-delay: 0.36s; }
.app__wave span:nth-child(6) { animation-delay: 0.45s; }
.app__wave span:nth-child(7) { animation-delay: 0.54s; }
.app__wave span:nth-child(8) { animation-delay: 0.63s; }
.app__wave span:nth-child(9) { animation-delay: 0.72s; }
.app__wave span:nth-child(10) { animation-delay: 0.81s; }
.app__wave span:nth-child(11) { animation-delay: 0.9s; }
.app__wave span:nth-child(12) { animation-delay: 0.99s; }
@keyframes wave {
  0%, 100% { height: 22%; }
  50% { height: 96%; }
}

.app__eq { display: flex; flex-direction: column; gap: 9px; background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 13px 14px; }
.eq-row { display: grid; grid-template-columns: 44px 1fr auto; align-items: center; gap: 10px; font-size: 0.76rem; }
.eq-row label { color: var(--muted); font-weight: 600; }
.eq-row b { color: var(--blue); font-weight: 700; font-size: 0.74rem; }
.eq-bar { height: 8px; background: var(--blue-50); border-radius: 99px; overflow: hidden; }
.eq-bar i { display: block; height: 100%; width: var(--w); background: linear-gradient(90deg, var(--blue), #37A5D9); border-radius: 99px; }

.app__btn {
  text-align: center;
  font-weight: 700;
  font-size: 0.98rem;
  padding: 0.95rem;
  border-radius: 16px;
}
.app__btn--stop { background: var(--blue); color: #fff; box-shadow: 0 8px 20px rgba(24, 98, 160, 0.3); }
.app__row { display: flex; gap: 10px; }
.app__mini {
  flex: 1;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--blue-deep);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.6rem 0.4rem;
}

/* floating cards */
.float {
  position: absolute;
  display: flex; align-items: center; gap: 8px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.62rem 0.95rem;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--muted);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  animation: floatY2 6s ease-in-out infinite;
}
.float b { color: var(--ink); }
.float__dot { width: 9px; height: 9px; border-radius: 50%; }
.float__dot--teal { background: var(--teal); }
.float__dot--amber { background: var(--amber); }
.float__dot--blue { background: var(--blue); }
.float--one { top: 12%; left: -6%; animation-delay: 0.6s; }
.float--two { bottom: 24%; right: -8%; animation-delay: 1.4s; }
.float--three { bottom: 5%; left: 2%; animation-delay: 2.2s; }
@keyframes floatY2 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ---------------- Stats strip ---------------- */
.strip {
  background: var(--blue-deep);
  color: #fff;
  padding: 2.4rem 0;
}
.strip__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: center;
}
.strip__item strong { display: block; font-size: clamp(1.7rem, 3vw, 2.3rem); font-weight: 800; letter-spacing: -0.02em; color: #7FC4EC; }
.strip__item span { font-size: 0.88rem; color: rgba(255, 255, 255, 0.72); }

/* ---------------- Sections ---------------- */
.section { padding: clamp(4rem, 8vw, 6.5rem) 0; }
.section--soft { background: var(--bg-soft); }
.section__head { max-width: 46rem; margin-bottom: clamp(2.4rem, 5vw, 3.6rem); }
.section__head p { margin-top: 1rem; color: var(--muted); font-size: 1.05rem; }
.section__head { margin-inline: auto; text-align: center; }

/* ---------------- Feature cards ---------------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.8rem 1.6rem;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--blue-100); }
.card__icon {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  background: var(--blue-50);
  color: var(--blue);
  border-radius: 14px;
  margin-bottom: 1.1rem;
}
.card__icon svg { width: 26px; height: 26px; }
.card h3 { margin-bottom: 0.55rem; color: var(--blue-deep); }
.card p { color: var(--muted); font-size: 0.95rem; }

/* ---------------- Steps ---------------- */
.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
  counter-reset: step;
}
.step {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2.2rem 1.7rem 1.8rem;
}
.step__num {
  position: absolute;
  top: -22px; left: 1.7rem;
  width: 44px; height: 44px;
  display: grid; place-items: center;
  background: var(--blue);
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  border-radius: 50%;
  box-shadow: 0 8px 18px rgba(24, 98, 160, 0.35);
}
.step h3 { color: var(--blue-deep); margin-bottom: 0.5rem; }
.step p { color: var(--muted); font-size: 0.95rem; }

.safety-check {
  margin-top: 3rem;
  display: flex;
  gap: 1.3rem;
  align-items: flex-start;
  background: linear-gradient(120deg, #EAF3FB, #F3FAF7);
  border: 1px solid var(--blue-100);
  border-radius: var(--radius);
  padding: 1.7rem 1.8rem;
}
.safety-check__icon {
  flex: none;
  width: 52px; height: 52px;
  display: grid; place-items: center;
  background: #fff;
  color: var(--blue);
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
}
.safety-check__icon svg { width: 26px; height: 26px; }
.safety-check h3 { color: var(--blue-deep); margin-bottom: 0.4rem; }
.safety-check p { color: var(--muted); font-size: 0.96rem; }

/* ---------------- Safety ---------------- */
.safety__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.safety__copy > p { color: var(--muted); margin-top: 1rem; font-size: 1.04rem; }
.safety__copy > p em { font-style: normal; color: var(--blue); font-weight: 600; }
.safety__copy > p.safety__byline {
  padding: 0.8rem 1rem;
  background: #FEF4E3;
  border-left: 4px solid var(--amber);
  border-radius: var(--radius-sm);
  font-weight: 600;
  color: #8A5A05;
}

.checklist { list-style: none; margin-top: 1.8rem; display: flex; flex-direction: column; gap: 1.15rem; }
.checklist li { display: flex; gap: 0.85rem; align-items: flex-start; }
.checklist .icon {
  width: 22px; height: 22px;
  color: #fff;
  background: var(--teal);
  border-radius: 50%;
  padding: 4px;
  margin-top: 3px;
  flex: none;
}
.checklist strong { display: block; color: var(--blue-deep); font-size: 1rem; }
.checklist span { color: var(--muted); font-size: 0.93rem; }

.notice {
  background: #FFFBF2;
  border: 1px solid #F5E3BE;
  border-left: 5px solid var(--amber);
  border-radius: var(--radius);
  padding: 1.8rem;
  box-shadow: var(--shadow-sm);
}
.notice h3 { color: #9A6206; margin-bottom: 0.8rem; }
.notice p { color: #6E5A33; font-size: 0.94rem; margin-bottom: 0.9rem; }
.notice p strong { color: #55431F; }
.notice__foot { margin-bottom: 0 !important; font-weight: 600; color: #9A6206 !important; }
.notice--top { margin-bottom: 3rem; }

/* ---------------- Compare ---------------- */
.compare__frame { position: relative; }
.compare__table-wrap {
  overflow-x: auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  -webkit-overflow-scrolling: touch;
}
.compare__table {
  width: 100%;
  min-width: 1150px;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.93rem;
}
.compare__table th,
.compare__table td {
  padding: 1rem 1.15rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}
.compare__table thead th + th { border-left: 1px solid var(--line); }
.compare__table tbody tr > * + * { border-left: 1px solid var(--line); }
.compare__table tbody tr:last-child > * { border-bottom: 0; }

.compare__table thead th { background: var(--bg-soft); padding: 1.35rem 1.15rem; }
.compare__head-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  background: var(--blue-50);
  color: var(--blue);
  border-radius: 13px;
  margin-bottom: 0.75rem;
}
.compare__head-icon svg { width: 24px; height: 24px; }
.compare__head-name {
  display: block;
  font-size: 1.02rem;
  font-weight: 800;
  color: var(--blue-deep);
  letter-spacing: -0.01em;
}
.compare__head-tag {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
}

.compare__table tbody tr:nth-child(odd) > * { background: #FBFDFF; }
.compare__table tbody tr th[scope="row"] {
  position: sticky;
  left: 0;
  z-index: 1;
  width: 185px;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--blue-deep);
  background: #F4F9FD;
  box-shadow: 10px 0 14px -12px rgba(11, 47, 81, 0.55);
}
.compare__table tbody tr .is-hei { background: #E9F3FB; }

.compare__table thead .is-hei {
  background: linear-gradient(165deg, #1E6FB4 0%, var(--blue-dark) 62%, var(--blue-deep) 100%);
}
.compare__table thead .is-hei .compare__head-name { color: #fff; }
.compare__table thead .is-hei .compare__head-tag { color: rgba(255, 255, 255, 0.75); }
.compare__table thead .is-hei .compare__head-icon { background: rgba(255, 255, 255, 0.15); color: #fff; }
.compare__table thead th.compare__corner { position: sticky; left: 0; z-index: 2; }

.compare__scroll-hint {
  display: none;
  text-align: center;
  margin-top: 0.9rem;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--muted);
}

.compare__note {
  max-width: 780px;
  margin: 2.4rem auto 0;
  text-align: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.3rem 1.6rem;
  color: var(--muted);
  font-size: 0.98rem;
  box-shadow: var(--shadow-sm);
}
.compare__note strong { color: var(--blue-deep); }

/* ---------------- Audio gear ---------------- */
.gear__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.3rem;
}
.gear-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.15rem 1.15rem 1.35rem;
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}
.gear-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.gear-card h3 { color: var(--blue-deep); font-size: 1.05rem; }
.gear-card__tag {
  align-self: flex-start;
  margin-top: 0.6rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--blue);
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  padding: 0.28rem 0.68rem;
  border-radius: 999px;
}
.gear-card ul {
  list-style: none;
  margin-top: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.62rem;
  flex: 1;
}
.gear-card li {
  position: relative;
  padding-left: 1.35rem;
  font-size: 0.9rem;
  color: var(--ink);
}
.gear-card li::before {
  content: "\2013";
  position: absolute;
  left: 0;
  color: var(--muted);
  font-weight: 700;
}
.gear-card__works {
  align-self: flex-start;
  margin-top: 1.2rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: #0A7A63;
  background: #E4F7F1;
  border: 1px solid #BFEDE3;
  padding: 0.42rem 0.85rem;
  border-radius: 999px;
}
.wire {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.3rem;
  margin-top: 1.3rem;
}
.wire__card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.3rem 1.4rem;
}
.wire__head {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.9rem;
}
.wire__head svg { width: 26px; height: 26px; color: var(--blue); flex: none; }
.wire__head h3 { margin: 0; color: var(--blue-deep); font-size: 1.1rem; }
.wire__card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.62rem;
}
.wire__card li {
  position: relative;
  padding-left: 1.35rem;
  font-size: 0.9rem;
  color: var(--ink);
}
.wire__card li::before {
  content: "\2013";
  position: absolute;
  left: 0;
  color: var(--muted);
  font-weight: 700;
}

/* ---------------- FAQ ---------------- */
.faq__wrap { max-width: 820px; }
.faq__list { display: flex; flex-direction: column; gap: 0.85rem; }
.faq__item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}
.faq__item[open] { border-color: var(--blue-100); box-shadow: var(--shadow-sm); }
.faq__item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.3rem;
  font-weight: 700;
  color: var(--blue-deep);
  font-size: 1rem;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__chev {
  flex: none;
  width: 10px; height: 10px;
  border-right: 2.4px solid var(--blue);
  border-bottom: 2.4px solid var(--blue);
  transform: rotate(45deg);
  transition: transform 0.25s ease;
  margin-right: 6px;
}
.faq__item[open] .faq__chev { transform: rotate(225deg); }
.faq__body { padding: 0 1.3rem 1.25rem; }
.faq__body p { color: var(--muted); font-size: 0.96rem; }
.setup-guide, .limitations { margin-top: 2.6rem; max-width: 820px; }
.setup-guide ol, .limitations ul {
  margin: 0;
  padding-left: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.setup-guide li, .limitations li { color: var(--muted); font-size: 0.96rem; line-height: 1.55; }
.setup-guide li strong, .limitations li strong { color: var(--blue-deep); }
.limitations li.important {
  padding: 0.85rem 1rem;
  background: #FEF4E3;
  border-left: 4px solid var(--amber);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.limitations li.important strong { color: #8A5A05; }

/* ---------------- CTA ---------------- */
.cta {
  position: relative;
  background:
    radial-gradient(700px 340px at 20% 0%, rgba(55, 165, 217, 0.28), transparent 60%),
    radial-gradient(600px 320px at 90% 100%, rgba(15, 169, 138, 0.22), transparent 60%),
    linear-gradient(160deg, var(--blue-deep), var(--navy));
  color: #fff;
  padding: clamp(4rem, 8vw, 6rem) 0;
  text-align: center;
}
.cta__logo { width: 62px; height: 89px; object-fit: contain; margin: 0 auto 1.4rem; filter: brightness(0) invert(1); opacity: 0.95; }
.cta h2 { color: #fff; }
.cta__inner > p { color: rgba(255, 255, 255, 0.75); margin-top: 0.9rem; }

.cta__card {
  margin: 2.4rem auto 0;
  max-width: 560px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(8px);
  border-radius: 22px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  align-items: center;
}
.cta__meta { display: flex; align-items: center; gap: 1rem; text-align: left; }
.cta__meta img { width: 46px; height: 66px; object-fit: contain; background: #fff; border-radius: 12px; padding: 6px; }
.cta__meta strong { display: block; font-size: 1.02rem; }
.cta__meta span { font-size: 0.85rem; color: rgba(255, 255, 255, 0.66); }
.cta__note { font-size: 0.88rem; color: #FFD98A; font-weight: 600; margin-top: -0.4rem; }
.cta__disclaimer { margin-top: 2rem !important; font-size: 0.82rem; color: rgba(255, 255, 255, 0.55) !important; max-width: 46rem; margin-inline: auto; }

/* ---------------- Footer ---------------- */
.footer { background: var(--navy); color: rgba(255, 255, 255, 0.7); padding: 3rem 0 2.4rem; }
.footer__inner { display: flex; flex-direction: column; gap: 1.6rem; align-items: center; text-align: center; }
.footer__brand { display: flex; align-items: center; gap: 0.7rem; }
.footer__brand img { width: 30px; height: 43px; object-fit: contain; filter: brightness(0) invert(1); }
.footer__brand strong { display: block; color: #fff; font-size: 1.15rem; letter-spacing: -0.02em; }
.footer__brand span { font-size: 0.8rem; }
.footer__brand span a { color: inherit; text-decoration: none; transition: color 0.18s ease; }
.footer__brand span a:hover { color: #7FC4EC; }
.footer__links { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.4rem; }
.footer__links a { font-size: 0.92rem; font-weight: 600; color: rgba(255, 255, 255, 0.78); transition: color 0.18s ease; }
.footer__links a:hover { color: #7FC4EC; }
.footer__legal { font-size: 0.8rem; max-width: 54rem; color: rgba(255, 255, 255, 0.5); }

/* ---------------- Reveal on scroll ---------------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .phone, .float, .app__wave span, .app__pulse { animation: none !important; }
}

/* ---------------- Responsive ---------------- */
@media (max-width: 1020px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; gap: 2.4rem; }
  .safety__grid { grid-template-columns: 1fr; }
  .pricing__plans { grid-template-columns: 1fr; max-width: 480px; margin-inline: auto; }
  .compare__frame::after {
    content: "";
    position: absolute;
    top: 1px;
    right: 1px;
    bottom: 1px;
    width: 48px;
    background: linear-gradient(to right, rgba(255, 255, 255, 0), #fff 85%);
    border-radius: 0 calc(var(--radius) - 1px) calc(var(--radius) - 1px) 0;
    pointer-events: none;
  }
  .compare__scroll-hint {
    display: block;
    width: fit-content;
    margin: 1.1rem auto 0;
    padding: 0.5rem 1.1rem;
    background: var(--blue-50);
    border: 1px solid var(--blue-100);
    border-radius: 99px;
    color: var(--blue);
    font-size: 0.82rem;
  }
  .gear__grid { grid-template-columns: repeat(2, 1fr); }
  .float--one { left: -2%; }
  .float--two { right: -2%; }

  .nav__toggle { display: block; }
  .nav__links {
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.6rem 1.25rem 1.2rem;
    box-shadow: var(--shadow-md);
    display: none;
  }
  .nav__links.is-open { display: flex; }
  .nav__links a { padding: 0.85rem 0.4rem; border-bottom: 1px solid var(--bg-soft); }
  .nav__links a:last-child { border-bottom: 0; }
  .nav__cta { margin-top: 0.6rem; text-align: center; }
}

@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; text-align: center; }
  .hero__copy { display: flex; flex-direction: column; align-items: center; }
  .hero__actions, .hero__facts { justify-content: center; }
  .strip__grid { grid-template-columns: repeat(2, 1fr); gap: 1.8rem; }
}

@media (max-width: 640px) {
  .cards { grid-template-columns: 1fr; }
  .gear__grid { grid-template-columns: 1fr; }
  .wire { grid-template-columns: 1fr; }
  .strip__grid { grid-template-columns: 1fr 1fr; }
  .hero__facts { flex-direction: column; align-items: center; gap: 0.7rem; }
  .float { display: none; }
  .safety-check { flex-direction: column; }
  .btn--lg { width: 100%; }
  .hero__actions { width: 100%; }
  .compare__table { min-width: 940px; font-size: 0.86rem; }
  .compare__table th, .compare__table td { padding: 0.75rem 0.8rem; }
  .compare__table thead th { padding: 1rem 0.8rem; }
  .compare__table tbody tr th[scope="row"] { width: 124px; font-size: 0.8rem; }
  .compare__head-icon { width: 38px; height: 38px; border-radius: 11px; margin-bottom: 0.6rem; }
  .compare__head-icon svg { width: 20px; height: 20px; }
  .compare__head-name { font-size: 0.92rem; }
  .compare__head-tag { font-size: 0.64rem; }
  .compare__note { padding: 1.15rem 1.15rem; font-size: 0.93rem; }
}