/* ==================== Base Helpers ==================== */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

@media (min-width: 768px) {
  .container {
    padding: 0 2.5rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 3.5rem;
  }
}

/* ==================== Scroll Reveal ==================== */
html.js-ready .reveal {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity 0.8s var(--ease),
    transform 0.8s var(--ease);
}

html.js-ready .reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

html.js-ready .reveal-group > * {
  transition-delay: calc(var(--reveal-index, 0) * 80ms);
}

/* ==================== Navigation ==================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  background: color-mix(in srgb, var(--color-background) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: var(--z-nav);
}

.nav-container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  position: relative;
}

@media (min-width: 768px) {
  .nav-container {
    padding: 1.15rem 2.5rem;
  }
}

@media (min-width: 1024px) {
  .nav-container {
    padding: 1.35rem 3.5rem;
  }
}

.logo {
  display: inline-flex;
  flex-direction: column;
  gap: 0.15rem;
  text-decoration: none;
  position: relative;
  z-index: 1001;
}

.logo-name {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-text);
  line-height: 1;
  white-space: nowrap;
}

.logo-subtitle {
  font-size: 0.625rem;
  font-weight: 600;
  color: var(--color-text-subtle);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  line-height: 1;
}

.nav-links {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: stretch;
  gap: 0.35rem;
  justify-self: center;
}

.nav-links li {
  display: flex;
  align-items: stretch;
  margin: 0;
  padding: 0;
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 450;
  line-height: 1;
  min-height: 38px;
  color: var(--color-text-muted);
  padding: 0.5rem 0.8rem;
  position: relative;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0.8rem;
  right: 0.8rem;
  bottom: 0.4rem;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text);
}

.nav-link:hover::after {
  transform: scaleX(1);
}

.nav-link.active {
  color: var(--color-text);
}

.nav-link.active::after {
  transform: scaleX(1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  position: relative;
  justify-self: end;
  z-index: 1002;
}

.mobile-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 2.25rem;
  height: 2.25rem;
  justify-content: center;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast);
}

.mobile-toggle:hover {
  border-color: var(--color-border-strong);
}

.mobile-toggle span {
  width: 15px;
  height: 1px;
  background: var(--color-text);
  transition:
    transform var(--transition-base),
    opacity var(--transition-base);
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

@media (min-width: 768px) {
  .mobile-toggle {
    display: none;
  }
}

@media (max-width: 767px) {
  .nav-links {
    display: flex;
    position: absolute;
    top: calc(100% + 0.65rem);
    right: 0;
    width: min(78vw, 250px);
    flex-direction: column;
    align-items: stretch;
    padding: 0.4rem;
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    gap: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition:
      max-height 0.26s ease,
      opacity 0.2s ease,
      transform 0.2s ease;
    z-index: 1005;
  }

  .nav-links.active {
    max-height: 380px;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-link {
    width: 100%;
    text-align: left;
    justify-content: flex-start;
    padding: 0.8rem 0.85rem;
    font-size: 0.9375rem;
    border-radius: var(--radius-sm);
  }

  .nav-link::after {
    display: none;
  }

  .nav-link.active {
    color: var(--color-text);
    background: var(--color-surface);
  }
}

/* ==================== Common Layout ==================== */
.section {
  padding: 4.5rem 0;
  position: relative;
  border-top: 1px solid var(--color-border);
}

.section:first-of-type {
  border-top: none;
}

@media (min-width: 768px) {
  .section {
    padding: 6rem 0;
  }
}

@media (min-width: 1024px) {
  .section {
    padding: 8rem 0;
  }
}

.page-header {
  padding: 9rem 0 3.5rem;
}

@media (min-width: 768px) {
  .page-header {
    padding: 11rem 0 4.5rem;
  }
}

.footer {
  background-color: var(--color-background);
  border-top: 1px solid var(--color-border);
  padding: 2.75rem 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .footer-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.footer p {
  margin: 0;
  color: var(--color-text-subtle);
  font-size: 0.875rem;
  max-width: none;
}

.footer a {
  color: var(--color-text-muted);
}

.footer a:hover {
  color: var(--color-text);
}

.footer-tech {
  font-size: 0.8125rem !important;
  margin-top: 0.35rem !important;
}

.footer-social {
  display: flex;
  gap: 1.25rem;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.875rem;
}

.footer-social svg {
  width: 15px;
  height: 15px;
}

.back-to-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition:
    opacity var(--transition-base),
    transform var(--transition-base),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.back-to-top:hover {
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@media (min-width: 768px) {
  .back-to-top {
    right: 2.5rem;
    bottom: 2.5rem;
  }
}

.text-center {
  text-align: center;
}