:root {
  --color-bg: #FFFFFF;
  --color-surface: #F8FAFC;
  --color-text: #0F172A;
  --color-muted: #475569;
  --color-primary: #1B2A4A;
  --color-gold: #7A5F18;
  --color-border: #64748B;
  --color-art-bg: #05070C;

  --color-primary-hover: #223357;
  --color-on-primary: #FFFFFF;

  --font-body: 'Inter', sans-serif;

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 40px;
  --space-5: 64px;
  --space-6: 96px;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 20px;
  --max-width: 1160px;

  --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.06), 0 8px 24px rgba(15, 23, 42, 0.06);
  --shadow-frame: 0 24px 48px rgba(15, 23, 42, 0.14);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-body);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text);
  margin: 0 0 var(--space-2);
}

p { margin: 0 0 var(--space-2); color: var(--color-muted); }
a { color: inherit; }
img { max-width: 100%; display: block; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-2);
}

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }
.btn-secondary {
  background: var(--color-bg);
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn-secondary:hover { border-color: var(--color-primary); color: var(--color-primary); }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
}
.brand { display: flex; align-items: center; gap: var(--space-1); text-decoration: none; }
.brand__logo { border-radius: 6px; }
.brand__name { font-weight: 700; color: var(--color-text); font-size: 1.05rem; }

.btn-sm { padding: 9px 18px; font-size: 0.875rem; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  border-radius: var(--radius-sm);
}
.nav-toggle__bar { width: 22px; height: 2px; background: var(--color-text); border-radius: 1px; }

.site-nav { display: flex; align-items: center; gap: var(--space-3); }
.site-nav a:not(.btn) {
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  color: var(--color-muted);
}
.site-nav a:not(.btn):hover { color: var(--color-text); }

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-3);
    display: none;
    box-shadow: var(--shadow-card);
  }
  .site-nav.is-open { display: flex; }
  .site-nav .btn { width: 100%; text-align: center; }
}

/* ---------- Hero ---------- */

.hero { padding: var(--space-6) 0 var(--space-5); }
.hero__inner {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex-wrap: wrap;
}
.hero__content { flex: 1 1 440px; max-width: 560px; }
.hero__visual { flex: 1 1 400px; display: flex; justify-content: center; }
.hero__title {
  font-size: clamp(2.25rem, 4.5vw, 3.25rem);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.hero__subtitle { font-size: 1.05rem; margin-bottom: var(--space-4); max-width: 520px; }
.hero__actions { display: flex; gap: var(--space-2); flex-wrap: wrap; }

.browser-frame {
  width: 100%;
  max-width: 460px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-frame);
  overflow: hidden;
}
.browser-frame__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 14px 16px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.browser-frame__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}
.browser-frame__body {
  padding: var(--space-3);
  background: var(--color-bg);
}
.chart-illustration { width: 100%; height: auto; display: block; }
.chart-illustration__grid { stroke: var(--color-border); stroke-width: 1; opacity: 0.25; }
.chart-illustration__candle { fill: var(--color-primary); opacity: 0.85; }
.chart-illustration__candle--gold { fill: var(--color-gold); opacity: 0.85; }
.chart-illustration__line {
  fill: none;
  stroke: var(--color-primary);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---------- Products ---------- */

.products { padding: var(--space-6) 0; }
.products h2 { margin-bottom: var(--space-4); font-size: clamp(1.75rem, 3vw, 2.25rem); }

.product-category {
  padding: var(--space-4) 0;
  border-top: 1px solid var(--color-border);
}
.product-category:first-of-type { border-top: none; padding-top: 0; }

.product-category__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  flex-wrap: wrap;
}
.product-category__intro { max-width: 640px; margin-bottom: 0; }
.product-category__intro h3 { color: var(--color-text); font-size: 1.4rem; }
.product-category__intro p { margin-bottom: 0; }

.product-carousel__controls { display: flex; gap: 8px; flex-shrink: 0; }
.carousel-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease, opacity 0.15s ease;
}
.carousel-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.carousel-btn:disabled { opacity: 0.35; cursor: default; }

.product-track {
  display: flex;
  gap: var(--space-3);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  margin: 0 calc(var(--space-3) * -1) var(--space-3);
  padding: 0 var(--space-3) var(--space-2);
}
.product-track::-webkit-scrollbar { display: none; }
.product-tile {
  flex: 0 0 240px;
  width: 240px;
  scroll-snap-align: start;
  text-align: center;
  text-decoration: none;
}
.product-tile__media {
  aspect-ratio: 1 / 1;
  background: var(--color-art-bg);
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-2);
  box-shadow: var(--shadow-card);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.product-tile:hover .product-tile__media {
  transform: scale(1.03);
  border-color: var(--color-gold);
  box-shadow: var(--shadow-frame);
}
.product-tile__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.product-tile__name {
  font-size: 1rem;
  color: var(--color-text);
  margin-bottom: 4px;
}
.product-tile__price {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-gold);
  margin-bottom: 0;
}

@media (prefers-reduced-motion: reduce) {
  .product-tile__media { transition: none; }
  .product-track { scroll-behavior: auto; }
}

@media (max-width: 480px) {
  .product-tile { flex-basis: 200px; width: 200px; }
}

.product-category__examples {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-2);
  color: var(--color-muted);
  font-size: 0.95rem;
}
.product-category__examples li { padding: 4px 0; }
.product-category__examples li::before { content: "\2192\00A0"; color: var(--color-gold); font-weight: 600; }

.product-category__price-note {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

/* ---------- About ---------- */

.about { padding: var(--space-6) 0; background: var(--color-surface); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.about__inner { max-width: 680px; }
.about__inner h2 { font-size: clamp(1.75rem, 3vw, 2.25rem); }

/* ---------- Why Choose Us ---------- */

.why { padding: var(--space-6) 0; }
.why h2 { margin-bottom: var(--space-4); font-size: clamp(1.75rem, 3vw, 2.25rem); }
.why__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}
.why-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  box-shadow: var(--shadow-card);
}
.why-card h3 { font-size: 1.05rem; color: var(--color-text); }
.why-card p { margin-bottom: 0; font-size: 0.92rem; }

@media (max-width: 768px) {
  .why__grid { grid-template-columns: 1fr; }
}

/* ---------- Contact ---------- */

.contact { padding: var(--space-6) 0; border-top: 1px solid var(--color-border); }
.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  align-items: start;
}
.contact__inner h2 { font-size: clamp(1.75rem, 3vw, 2.25rem); }

.contact-info { margin: var(--space-3) 0 0; }
.contact-info__row {
  display: flex;
  gap: var(--space-1);
  padding: 8px 0;
  border-top: 1px solid var(--color-border);
}
.contact-info__row:first-child { border-top: none; }
.contact-info__row dt {
  width: 90px;
  flex-shrink: 0;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text);
}
.contact-info__row dd {
  margin: 0;
  color: var(--color-muted);
}
.contact-info__row dd a { color: var(--color-muted); }
.contact-info__row dd a:hover { color: var(--color-primary); }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-4);
}
.contact-form label {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text);
  margin-top: var(--space-2);
}
.contact-form input,
.contact-form textarea {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: var(--color-muted); }
.contact-form input:hover,
.contact-form textarea:hover { border-color: var(--color-primary); }
.contact-form button { margin-top: var(--space-3); align-self: flex-start; }

@media (max-width: 768px) {
  .contact__inner { grid-template-columns: 1fr; }
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-3) 0;
}
.site-footer__inner {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}
.site-footer__inner p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* ---------- Focus states ---------- */

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}