:root {
  --ink: #0f172a;
  --ink-soft: #334155;
  --muted: #64748b;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --border: #e2e8f0;
  --accent: #0d9488;
  --accent-dark: #0f766e;
  --accent-tint: #f0fdfa;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.06);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink-soft);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { color: var(--ink); font-weight: 700; margin: 0 0 0.5em; line-height: 1.2; }
h1 { font-size: clamp(2rem, 4.5vw, 3.1rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); text-align: center; margin-bottom: 0.4em; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }

a { color: var(--accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}
.wrap-narrow { max-width: 680px; }

/* ── Header ─────────────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.brand span { color: var(--accent); }
.brand:hover { text-decoration: none; }
.main-nav { display: flex; gap: 28px; }
.main-nav a { color: var(--ink-soft); font-weight: 500; font-size: 0.95rem; }
.main-nav a:hover { color: var(--accent-dark); text-decoration: none; }
.btn-nav { padding: 8px 18px; font-size: 0.9rem; }

@media (max-width: 760px) {
  .main-nav { display: none; }
}

/* ── Buttons ────────────────────────────────────────────────────────── */
.btn {
  display: inline-block;
  border-radius: 999px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.1s ease, box-shadow 0.15s ease, background 0.15s ease;
  padding: 10px 20px;
  font-size: 0.95rem;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--border); }
.btn-ghost:hover { background: var(--bg-alt); }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* ── Hero ───────────────────────────────────────────────────────────── */
.hero {
  background: radial-gradient(1200px 500px at 50% -10%, var(--accent-tint), transparent), var(--bg);
  padding: 96px 0 72px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.hero-inner { text-align: left; }
.hero .lede { font-size: 1.15rem; color: var(--muted); max-width: 560px; margin: 0 0 2em; }
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 2.5em; }

.trust-strip {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--muted);
}
.trust-strip li { position: relative; padding-left: 22px; }
.trust-strip li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.3em;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-tint);
  border: 2px solid var(--accent);
}

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-inner { text-align: center; }
  .hero .lede { margin-left: auto; margin-right: auto; }
  .hero-ctas { justify-content: center; }
  .trust-strip { align-items: center; }
}

/* ── Hero / product photos ─────────────────────────────────────────────── */
.hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.hero-visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: block;
}
.photo-caption {
  font-size: 0.75rem;
  color: var(--muted);
  text-align: center;
}

/* ── Sections ───────────────────────────────────────────────────────── */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-lede {
  text-align: center;
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto 2.5em;
  font-size: 1.05rem;
}

/* ── Card grid ──────────────────────────────────────────────────────── */
.card-grid {
  display: grid;
  gap: 20px;
  margin-top: 2.5em;
}
.card-grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 960px) { .card-grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .card-grid-4 { grid-template-columns: 1fr; } }

.card-grid-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 760px) { .card-grid-3 { grid-template-columns: 1fr; } }

.device-card { text-align: center; }
.device-card .icon { margin: 0 auto 14px; }
.device-card img {
  width: 100%;
  max-width: 150px;
  height: auto;
  margin: 0 auto 16px;
  display: block;
  border-radius: 8px;
}

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.card h3 { margin-bottom: 0.4em; }
.card p { color: var(--muted); margin: 0; font-size: 0.95rem; }

.feature-card .icon, .device-card .icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--accent-tint);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.feature-card .icon svg, .device-card .icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--accent-dark);
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ── How it works ───────────────────────────────────────────────────── */
.steps {
  list-style: none;
  padding: 0;
  margin: 2.5em 0 0;
  display: grid;
  gap: 28px;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}
.steps li { display: flex; gap: 18px; align-items: flex-start; }
.step-num {
  flex: none;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.steps h3 { margin-bottom: 0.25em; }
.steps p { margin: 0; color: var(--muted); }

/* ── Power & Connectivity ──────────────────────────────────────────────── */
.power-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 2.5em;
}
.power-photo { display: flex; flex-direction: column; gap: 8px; }
.power-photo img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: block;
}
.power-copy h2 { text-align: left; }
.badge-soon {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: #fef3c7;
  color: #92400e;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}
.power-list {
  list-style: none;
  padding: 0;
  margin: 1.2em 0 0;
  display: grid;
  gap: 10px;
}
.power-list li {
  position: relative;
  padding-left: 22px;
  color: var(--muted);
  font-size: 0.95rem;
}
.power-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}
.power-list li strong { color: var(--ink); }
.power-specs { min-width: 0; }
.power-specs td:first-child { color: var(--muted); width: 45%; }
.power-specs td:last-child { font-weight: 600; color: var(--ink); }

@media (max-width: 760px) {
  .power-grid { grid-template-columns: 1fr; }
  .power-copy h2, .power-copy { text-align: center; }
  .badge-soon { display: block; width: fit-content; margin-left: auto; margin-right: auto; }
}

/* ── Price cards ────────────────────────────────────────────────────── */
.price-cards {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 2.5em 0 3em;
}
.price-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 32px;
  min-width: 220px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.price-card-accent {
  border-color: var(--accent);
  background: var(--accent-tint);
}
.price-label { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
.price-amount { font-size: 1.8rem; font-weight: 800; color: var(--ink); }
.price-card-accent .price-amount { color: var(--accent-dark); }
.price-sub { font-size: 0.85rem; color: var(--muted); max-width: 220px; margin: 4px auto 0; }

/* ── Custom development ─────────────────────────────────────────────── */
.custom-dev-inner { text-align: center; }

/* ── Pricing table ──────────────────────────────────────────────────── */
.table-scroll { overflow-x: auto; }
.pricing-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  min-width: 520px;
}
.pricing-table th, .pricing-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}
.pricing-table thead th {
  background: var(--bg-alt);
  color: var(--ink);
  font-weight: 700;
}
.pricing-table thead th:nth-child(3) { color: var(--accent-dark); }
.pricing-table tbody td:nth-child(3) { font-weight: 600; color: var(--accent-dark); }
.pricing-table tbody tr:last-child td { border-bottom: none; }
.fine-print { text-align: center; color: var(--muted); font-size: 0.85rem; max-width: 640px; margin: 1.5em auto 0; }

/* ── Compliance ─────────────────────────────────────────────────────── */
.check-list {
  list-style: none;
  padding: 0;
  max-width: 720px;
  margin: 2.5em auto 0;
  display: grid;
  gap: 14px;
}
.check-list li {
  position: relative;
  padding: 14px 18px 14px 46px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.check-list li::before {
  content: "\2713";
  position: absolute;
  left: 16px;
  top: 14px;
  color: var(--accent);
  font-weight: 800;
}

/* ── FAQ ─────────────────────────────────────────────────────────────── */
.faq-list {
  max-width: 720px;
  margin: 2.5em auto 0;
  display: grid;
  gap: 10px;
}
.faq-list details {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
}
.faq-list summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--ink);
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  float: right;
  color: var(--accent);
  font-weight: 800;
}
.faq-list details[open] summary::after { content: "\2212"; }
.faq-list details p { margin: 12px 0 0; color: var(--muted); }

/* ── Contact form ───────────────────────────────────────────────────── */
#contact-form {
  margin-top: 2.5em;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}
.form-row { margin-bottom: 18px; }
.form-row label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--ink);
  margin-bottom: 6px;
}
.form-row input, .form-row textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--ink);
  background: var(--bg);
}
.form-row input:focus, .form-row textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-status { margin: 14px 0 0; font-size: 0.9rem; min-height: 1.2em; }
.form-status.success { color: var(--accent-dark); }
.form-status.error { color: #b91c1c; }

/* ── Footer ─────────────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  background: var(--bg-alt);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-inner p { color: var(--muted); font-size: 0.9rem; margin: 6px 0 0; }
.footer-contact { text-align: right; font-size: 0.9rem; color: var(--muted); }
.footer-contact a { display: block; margin-bottom: 6px; }

@media (max-width: 560px) {
  .footer-inner { text-align: left; }
  .footer-contact { text-align: left; }
}