:root {
  --ink: #0f172a;
  --muted: #475569;
  --paper: #f1f5f9;
  --surface: rgba(255, 255, 255, 0.72);
  --line: rgba(15, 23, 42, 0.12);
  --accent: #2563eb;
  --accent-deep: #1e3a8a;
  --warm: #0284c7;
  --glow-a: rgba(37, 99, 235, 0.16);
  --glow-b: rgba(14, 165, 233, 0.12);
  --header-bg: rgba(248, 250, 252, 0.92);
  --page-base: #f8fafc;
  --page-mid: #eef2ff;
  --btn-text: #f8fafc;
  --radius: 6px;
  --max: 1080px;
  --font-display: "Instrument Sans", sans-serif;
  --font-body: "DM Sans", sans-serif;
  --shadow-soft: 0 20px 50px rgba(15, 23, 42, 0.08);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e2e8f0;
    --muted: #94a3b8;
    --paper: #0f172a;
    --surface: rgba(30, 41, 59, 0.82);
    --line: rgba(226, 232, 240, 0.12);
    --accent: #60a5fa;
    --accent-deep: #3b82f6;
    --warm: #38bdf8;
    --glow-a: rgba(59, 130, 246, 0.2);
    --glow-b: rgba(14, 165, 233, 0.1);
    --header-bg: rgba(15, 23, 42, 0.94);
    --page-base: #020617;
    --page-mid: #0f172a;
    --shadow-soft: 0 20px 50px rgba(0, 0, 0, 0.35);
  }
}

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

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

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  background:
    radial-gradient(900px 520px at 8% -8%, var(--glow-a), transparent 58%),
    radial-gradient(700px 480px at 95% 5%, var(--glow-b), transparent 55%),
    linear-gradient(165deg, var(--page-base) 0%, var(--paper) 50%, var(--page-mid) 100%);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: clip;
  padding-left: var(--safe-left);
  padding-right: var(--safe-right);
  padding-bottom: var(--safe-bottom);
  -webkit-tap-highlight-color: transparent;
}

body.nav-open {
  overflow: hidden;
}

a {
  color: var(--accent-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--warm);
}

.site-header {
  width: min(var(--max), calc(100% - 2.5rem));
  margin: 0 auto;
  padding: calc(0.85rem + var(--safe-top)) 0 0.85rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
}

.logo {
  display: inline-flex;
  flex-direction: column;
  gap: 0;
  text-decoration: none;
  min-height: 44px;
  justify-content: center;
  line-height: 1.1;
}

.logo-mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.logo-sub {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-left: 0.75rem;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 25;
  background: rgba(15, 23, 42, 0.45);
  border: 0;
  padding: 0;
  margin: 0;
}

.nav-backdrop[hidden] {
  display: none;
}

.nav {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  margin-left: auto;
}

.nav a {
  position: relative;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.nav a:hover,
.nav a[aria-current="page"],
.nav a.is-active {
  color: var(--ink);
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0.35rem;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 200ms ease;
}

.nav a:hover::after,
.nav a[aria-current="page"]::after,
.nav a.is-active::after {
  transform: scaleX(1);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--accent-deep);
  background: var(--accent-deep);
  color: var(--btn-text);
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
  touch-action: manipulation;
}

.btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.btn-ghost:hover {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--ink);
}

.btn-small {
  padding: 0.55rem 0.9rem;
  font-size: 0.88rem;
}

.hero {
  width: min(var(--max), calc(100% - 2.5rem));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: center;
  padding: 2rem 0 3rem;
  min-height: calc(88vh - 5rem);
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero h1,
.contact-intro h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.85rem, 3.8vw, 2.75rem);
  letter-spacing: -0.03em;
  line-height: 1.12;
  max-width: 18ch;
}

.lede {
  margin: 0 0 1.75rem;
  color: var(--muted);
  max-width: 42ch;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-panel {
  border-radius: 12px;
  background:
    linear-gradient(145deg, rgba(37, 99, 235, 0.22), transparent 48%),
    linear-gradient(320deg, rgba(14, 165, 233, 0.14), transparent 42%),
    linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
  box-shadow: var(--shadow-soft);
  aspect-ratio: 1;
  max-height: min(420px, 50vh);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  width: 100%;
  max-width: 220px;
}

.panel-grid span {
  aspect-ratio: 1;
  border-radius: 8px;
  background: rgba(148, 163, 184, 0.15);
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.panel-core {
  background:
    radial-gradient(circle at 35% 30%, #93c5fd, #2563eb 55%, #1e3a8a 100%) !important;
  border: none !important;
  box-shadow: 0 0 40px rgba(37, 99, 235, 0.45);
}

.strip {
  width: min(var(--max), calc(100% - 2.5rem));
  margin: 0 auto 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.strip ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 500;
}

.strip li {
  position: relative;
}

.strip li:not(:last-child)::after {
  content: "";
  position: absolute;
  right: -0.8rem;
  top: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  transform: translateY(-50%);
}

.section {
  width: min(var(--max), calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 4rem 0;
  scroll-margin-top: calc(5.5rem + var(--safe-top));
}

.section-alt {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head {
  max-width: 38rem;
  margin-bottom: 2.25rem;
}

.section-head h2,
.cta-band h2 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.25rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.section-head p,
.cta-band p {
  margin: 0;
  color: var(--muted);
}

.two-col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.card {
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.product-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.product-card {
  padding: 1.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface);
}

.product-card--muted {
  opacity: 0.92;
}

.product-tag {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

.product-card h3 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
}

.product-card h3 a {
  color: var(--ink);
  text-decoration: none;
}

.product-card h3 a:hover {
  color: var(--accent);
}

.product-card p {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.98rem;
}

.product-card ul {
  margin: 0 0 1rem;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.text-link {
  font-weight: 600;
  text-decoration: none;
}

.focus-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.focus-list li {
  display: grid;
  gap: 0.35rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
}

.focus-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.focus-list strong {
  font-family: var(--font-display);
  font-size: 1.1rem;
}

.focus-list span {
  color: var(--muted);
  font-size: 0.98rem;
}

.cta-band {
  text-align: center;
  padding: 3.5rem 0 4.5rem;
}

.cta-band h2 {
  margin-bottom: 0.75rem;
}

.cta-band p {
  margin-bottom: 1.5rem;
}

.cta-band a:not(.btn) {
  font-weight: 500;
}

.site-footer {
  width: min(var(--max), calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 2rem 0 calc(2rem + var(--safe-bottom));
  border-top: 1px solid var(--line);
  text-align: center;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-brand {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
}

.site-footer p {
  margin: 0.35rem 0;
}

.fine {
  font-size: 0.82rem;
  opacity: 0.85;
}

/* Contact */
.contact-page {
  width: min(var(--max), calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 2rem 0 4rem;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 2.5rem;
  align-items: start;
}

.contact-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.contact-chip {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink);
}

.contact-chip:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
}

.contact-form {
  padding: 1.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.contact-form label,
.contact-form fieldset {
  display: block;
  margin-bottom: 1rem;
  font-size: 0.92rem;
  font-weight: 500;
}

.contact-form legend {
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
  display: block;
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--page-base);
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
}

.contact-form textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

.check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 400;
  margin-bottom: 0.45rem !important;
}

.check input {
  width: 1rem;
  height: 1rem;
  accent-color: var(--accent);
}

.botcheck {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

.form-status {
  margin: 0.75rem 0 0;
  font-size: 0.9rem;
  color: var(--muted);
  min-height: 1.4em;
}

.form-status--error {
  color: #dc2626;
}

.privacy-note {
  margin: 0.75rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}

.form-success {
  text-align: center;
  padding: 2rem 1rem;
}

.form-success[hidden] {
  display: none !important;
}

.form-success-title {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
}

.form-success-text {
  margin: 0 0 1.25rem;
  color: var(--muted);
}

.contact-form.is-sent {
  border-color: rgba(37, 99, 235, 0.35);
}

.contact-form input.is-invalid {
  border-color: #dc2626;
}

.field-error {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.82rem;
  font-weight: 400;
  color: #dc2626;
}

.field-error[hidden] {
  display: none;
}

.contact-form .btn:disabled {
  opacity: 0.65;
  cursor: wait;
}

.contact-form.is-shake {
  animation: shake 420ms ease;
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-6px);
  }
  75% {
    transform: translateX(6px);
  }
}

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex;
  }

  .header-actions .btn-small {
    display: none;
  }

  .nav {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 28;
    width: min(18rem, 88vw);
    height: 100%;
    height: 100dvh;
    margin: 0;
    padding: calc(5rem + var(--safe-top)) 1.25rem 2rem;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--header-bg);
    border-left: 1px solid var(--line);
    transform: translateX(100%);
    transition: transform 240ms ease;
  }

  .nav.is-open {
    transform: translateX(0);
  }

  .nav a {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line);
  }

  .hero,
  .two-col,
  .product-list,
  .contact-page {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    max-height: 280px;
    order: -1;
  }

  .hero h1 {
    max-width: none;
  }
}

@media (max-width: 480px) {
  .site-header,
  .hero,
  .section,
  .strip,
  .contact-page,
  .site-footer {
    width: min(var(--max), calc(100% - 1.25rem));
  }
}