/* ══════════════════════════════════════════════
   Global Nav
   ══════════════════════════════════════════════ */
.global-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: var(--color-surface-black);
  color: var(--color-on-dark);
  font-family: var(--font-text);
  font-size: var(--text-nav-link-size);
  font-weight: var(--text-nav-link-weight);
  line-height: var(--text-nav-link-lh);
  letter-spacing: var(--text-nav-link-ls);
}

.global-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.global-nav__logo {
  font-weight: 600;
  font-size: 14px;
  letter-spacing: -0.2px;
  color: var(--color-on-dark);
  text-decoration: none;
}

.global-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.global-nav__links a {
  color: var(--color-body-muted);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-apple);
}

.global-nav__links a:hover {
  color: var(--color-on-dark);
}

.global-nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

/* ══════════════════════════════════════════════
   Sub Nav (Frosted)
   ══════════════════════════════════════════════ */
.sub-nav {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  z-index: 999;
  height: var(--subnav-height);
  background: rgba(245, 245, 247, 0.8);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.sub-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.sub-nav__label {
  font-family: var(--font-display);
  font-size: var(--text-tagline-size);
  font-weight: var(--text-tagline-weight);
  line-height: var(--text-tagline-lh);
  letter-spacing: var(--text-tagline-ls);
  color: var(--color-ink);
}

.sub-nav__cta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.sub-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  font-size: var(--text-button-utility-size);
  font-weight: var(--text-button-utility-weight);
  letter-spacing: var(--text-button-utility-ls);
}

.sub-nav__links a {
  color: var(--color-ink-muted-48);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-apple);
}

.sub-nav__links a:hover {
  color: var(--color-ink);
}

/* ══════════════════════════════════════════════
   Buttons
   ══════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  font-family: var(--font-text);
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary-focus);
  outline-offset: 2px;
}

/* Primary Pill */
.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-size: var(--text-body-size);
  font-weight: var(--text-body-weight);
  line-height: var(--text-body-lh);
  border-radius: var(--radius-pill);
  padding: 11px 22px;
}

.btn-primary:hover {
  background: var(--color-primary-focus);
}

/* Secondary Ghost Pill */
.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  font-size: var(--text-body-size);
  font-weight: var(--text-body-weight);
  line-height: var(--text-body-lh);
  border-radius: var(--radius-pill);
  padding: 11px 22px;
}

.btn-secondary:hover {
  background: rgba(0, 102, 204, 0.05);
}

/* Secondary Ghost Pill on Dark */
.btn-secondary-on-dark {
  background: transparent;
  color: var(--color-primary-on-dark);
  border: 1px solid var(--color-primary-on-dark);
  font-size: var(--text-body-size);
  font-weight: var(--text-body-weight);
  line-height: var(--text-body-lh);
  border-radius: var(--radius-pill);
  padding: 11px 22px;
}

.btn-secondary-on-dark:hover {
  background: rgba(41, 151, 255, 0.1);
}

/* Dark Utility */
.btn-utility {
  background: var(--color-ink);
  color: var(--color-on-dark);
  font-size: var(--text-button-utility-size);
  font-weight: var(--text-button-utility-weight);
  line-height: var(--text-button-utility-lh);
  letter-spacing: var(--text-button-utility-ls);
  border-radius: var(--radius-sm);
  padding: 8px 15px;
}

/* Hero Store CTA */
.btn-hero {
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-family: var(--font-text);
  font-size: var(--text-button-large-size);
  font-weight: var(--text-button-large-weight);
  line-height: var(--text-button-large-lh);
  letter-spacing: var(--text-button-large-ls);
  border-radius: var(--radius-pill);
  padding: 14px 28px;
}

/* Text Link */
.text-link {
  color: var(--color-primary);
  font-size: var(--text-body-size);
  font-weight: var(--text-body-weight);
  line-height: var(--text-body-lh);
  background: transparent;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: opacity var(--duration-fast) var(--ease-apple);
}

.text-link:hover {
  opacity: 0.8;
}

.text-link-on-dark {
  color: var(--color-primary-on-dark);
  font-size: var(--text-body-size);
  font-weight: var(--text-body-weight);
  line-height: var(--text-body-lh);
  background: transparent;
  border: none;
  cursor: pointer;
  text-decoration: none;
}

/* ══════════════════════════════════════════════
   Product Tiles
   ══════════════════════════════════════════════ */
.tile {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-section) var(--space-lg);
  position: relative;
  overflow: hidden;
}

.tile--light {
  background: var(--color-canvas);
  color: var(--color-ink);
}

.tile--parchment {
  background: var(--color-canvas-parchment);
  color: var(--color-ink);
}

.tile--dark {
  background: var(--color-surface-tile-1);
  color: var(--color-on-dark);
}

.tile--dark-2 {
  background: var(--color-surface-tile-2);
  color: var(--color-on-dark);
}

.tile--dark-3 {
  background: var(--color-surface-tile-3);
  color: var(--color-on-dark);
}

.tile--black {
  background: var(--color-surface-black);
  color: var(--color-on-dark);
}

.tile__headline {
  font-family: var(--font-display);
  font-size: var(--text-display-lg-size);
  font-weight: var(--text-display-lg-weight);
  line-height: var(--text-display-lg-lh);
  letter-spacing: var(--text-display-lg-ls);
  margin-bottom: var(--space-md);
  max-width: 760px;
}

.tile__subhead {
  font-family: var(--font-display);
  font-size: var(--text-lead-size);
  font-weight: var(--text-lead-weight);
  line-height: var(--text-lead-lh);
  letter-spacing: var(--text-lead-ls);
  margin-bottom: var(--space-xxl);
  max-width: 640px;
  opacity: 0.8;
}

.tile__ctas {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-xxl);
  flex-wrap: wrap;
  justify-content: center;
}

.tile__visual {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
}

/* ══════════════════════════════════════════════
   Hero Tile (first tile)
   ══════════════════════════════════════════════ */
.tile--hero {
  min-height: calc(100vh - var(--nav-height) - var(--subnav-height));
  justify-content: center;
  padding-top: calc(var(--space-section) + var(--nav-height) + var(--subnav-height));
}

.tile--hero .tile__headline {
  font-size: var(--text-hero-display-size);
  font-weight: var(--text-hero-display-weight);
  line-height: var(--text-hero-display-lh);
  letter-spacing: var(--text-hero-display-ls);
}

/* ══════════════════════════════════════════════
   Utility Cards
   ══════════════════════════════════════════════ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-xl);
  width: 100%;
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.card {
  background: var(--color-canvas);
  border: var(--border-hairline);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: left;
}

.card--dark {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--color-on-dark);
}

.card__title {
  font-family: var(--font-text);
  font-size: var(--text-body-strong-size);
  font-weight: var(--text-body-strong-weight);
  line-height: var(--text-body-strong-lh);
  letter-spacing: var(--text-body-strong-ls);
  margin-bottom: var(--space-xs);
}

.card__desc {
  font-size: var(--text-body-size);
  font-weight: var(--text-body-weight);
  line-height: var(--text-body-lh);
  letter-spacing: var(--text-body-ls);
  color: var(--color-ink-muted-48);
}

.card--dark .card__desc {
  color: var(--color-body-muted);
}

/* ══════════════════════════════════════════════
   Product Mockup
   ══════════════════════════════════════════════ */
.mockup {
  background: #0b0e11;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-product);
  overflow: hidden;
  text-align: left;
  color: #eaecef;
  font-size: 13px;
  line-height: 1.5;
}

.mockup__header {
  background: #1e2329;
  padding: 10px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: #707a8a;
  border-bottom: 1px solid #2a2a2e;
}

.mockup__body {
  padding: 16px;
}

.mockup__row {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.mockup__row:last-child {
  border-bottom: none;
}

.mockup__label {
  color: #707a8a;
}

.mockup__value--bull {
  color: #4caf50;
}

.mockup__value--bear {
  color: #ff5252;
}

.mockup__value--neutral {
  color: #2196f3;
}

.mockup__divider {
  border: none;
  border-top: 1px solid #2a2a2e;
  margin: 8px 0;
}

.mockup__conclusion {
  display: flex;
  justify-content: space-between;
  padding-top: 8px;
  font-weight: 600;
}

.mockup__conclusion-value {
  color: #4caf50;
}

.mockup__highlight {
  color: #2997ff;
  font-weight: 600;
}

/* Monitor mockup variant */
.mockup--monitor .mockup__stat {
  display: flex;
  justify-content: space-between;
  padding: 5px 0;
}

.mockup--monitor .mockup__alert {
  color: #ff5252;
  font-weight: 600;
}

/* ══════════════════════════════════════════════
   Parallax Layer
   ══════════════════════════════════════════════ */
.parallax-mid {
  position: relative;
  z-index: 1;
}

.parallax-front {
  position: relative;
  z-index: 2;
}

/* ══════════════════════════════════════════════
   Footer
   ══════════════════════════════════════════════ */
.footer {
  background: var(--color-canvas-parchment);
  color: var(--color-ink-muted-80);
  padding: 80px 0;
  font-size: var(--text-fine-print-size);
  font-weight: var(--text-fine-print-weight);
  line-height: var(--text-fine-print-lh);
  letter-spacing: var(--text-fine-print-ls);
}

.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__links {
  display: flex;
  gap: var(--space-lg);
}

.footer__links a {
  color: var(--color-ink-muted-48);
  text-decoration: none;
}

.footer__links a:hover {
  color: var(--color-ink);
}

/* ══════════════════════════════════════════════
   Hamburger / Mobile Nav
   ══════════════════════════════════════════════ */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 18px;
  height: 1px;
  background: var(--color-on-dark);
  transition: transform var(--duration-fast) var(--ease-apple);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--color-surface-black);
  padding: var(--space-lg);
  z-index: 998;
}

.mobile-menu a {
  display: block;
  color: var(--color-body-muted);
  font-size: var(--text-nav-link-size);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  text-decoration: none;
}

.mobile-menu a:last-child {
  border-bottom: none;
}

.mobile-menu--open {
  display: block;
}

/* ══════════════════════════════════════════════
   Responsive
   ══════════════════════════════════════════════ */
@media (max-width: 833px) {
  .global-nav__links {
    display: none;
  }
  .hamburger {
    display: flex;
  }
}

@media (max-width: 734px) {
  .tile {
    padding: var(--space-xxl) var(--space-md);
  }
  .tile--hero {
    padding-top: calc(var(--space-xxl) + var(--nav-height) + var(--subnav-height));
  }
  .sub-nav__links {
    display: none;
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .tile__ctas {
    flex-direction: column;
    align-items: center;
  }
}