/*    HYPIXOR — Layout System
   Top navbar + content area */

/* ——— Navbar ——— */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  background: var(--color-surface-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  z-index: var(--z-navbar);
  display: flex;
  align-items: center;
  padding: 0 var(--space-6);
  box-shadow: var(--shadow-xs);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-wide);
  margin: 0 auto;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text-primary);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  letter-spacing: -0.5px;
}

.navbar-brand svg {
  width: 28px;
  height: 28px;
}

.navbar-brand span {
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-alt);
}

.nav-link.active {
  color: var(--brand-primary);
  background: var(--brand-primary-subtle);
}

.nav-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ——— Dropdown ——— */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 200px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all var(--transition-fast);
  z-index: var(--z-dropdown);
}

@media (hover: hover) {
  .nav-item:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
}

.nav-item.open .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-link {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.dropdown-link:hover {
  background: var(--color-bg-alt);
  color: var(--color-text-primary);
}

.dropdown-link.active {
  color: var(--brand-primary);
  background: var(--brand-primary-subtle);
}

.dropdown-divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-2) 0;
}

/* ——— Mobile Menu Toggle ——— */
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
}

.nav-toggle:hover {
  background: var(--color-bg-alt);
}

.nav-toggle svg {
  width: 22px;
  height: 22px;
}

/* ——— Main Content ——— */
.main-content {
  padding-top: var(--navbar-height);
  min-height: 100vh;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-6) var(--space-6);
}

.container-wide {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: var(--space-8) var(--space-6);
}

/* ——— Page Header ——— */
.page-header {
  margin-bottom: var(--space-5);
}

.page-header h1 {
  margin-bottom: var(--space-2);
}

.page-header p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
}

/* ——— Grid System ——— */
.grid {
  display: grid;
  gap: var(--space-4);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-auto {
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

/* ——— Flex utilities ——— */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

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

.justify-between {
  justify-content: space-between;
}

.gap-2 {
  gap: var(--space-2);
}

.gap-3 {
  gap: var(--space-3);
}

.gap-4 {
  gap: var(--space-4);
}

.gap-6 {
  gap: var(--space-6);
}

.gap-8 {
  gap: var(--space-8);
}

/* ——— Footer ——— */
.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: var(--space-10) var(--space-6) var(--space-6);
  margin-top: var(--space-16);
  position: relative;
  z-index: 10;
}

.main-content {
  flex: 1 0 auto;
  min-height: calc(100vh - var(--navbar-height));
  padding-bottom: var(--space-8);
}

.footer-inner {
  max-width: var(--container-wide);
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-brand p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-3);
  max-width: 300px;
  line-height: var(--leading-relaxed);
}

.footer-col-title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semi);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--brand-primary);
}

.footer-bottom {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  gap: var(--space-6);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-4);
}

.footer-bottom-links a {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  white-space: nowrap;
}

.footer-bottom-links a:hover {
  color: var(--brand-primary);
}

/* ——— Mobile overlay ——— */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: calc(var(--z-navbar) - 1);
  display: none;
}

.nav-overlay.visible {
  display: block;
}

/* ——— Responsive ——— */

/* Desktop / Large Screens */
@media (max-width: 1280px) {
  .container-wide {
    padding: var(--space-6) var(--space-4);
  }
}

/* Tablet / Netbooks */
@media (max-width: 1024px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile & Small Tablets */
@media (max-width: 768px) {

  html,
  body {
    max-width: 100vw;
    overflow-x: hidden;
    /* Prevent horizontal layout breaking */
  }

  .nav-toggle {
    display: flex;
  }

  .navbar-nav {
    position: absolute;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    height: calc(100vh - var(--navbar-height));
    background: var(--color-surface);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-4);
    gap: var(--space-2);
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    z-index: var(--z-navbar);
  }

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

  .nav-dropdown {
    position: static;
    box-shadow: none;
    border: none;
    padding: 0 0 0 var(--space-4);
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
  }

  .nav-item.open .nav-dropdown {
    display: block;
  }

  /* Force all multi-grids to single column below 768px */
  .grid,
  .grid-3,
  .grid-4,
  .grid-auto,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  /* Typography Scales */
  h1,
  .page-header h1 {
    font-size: var(--text-3xl);
  }

  h2 {
    font-size: var(--text-xl);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }

  .container,
  .container-wide {
    padding: var(--space-5) var(--space-4);
  }
}

/* Extra Small Mobile Viewports */
@media (max-width: 480px) {
  .navbar-brand span {
    font-size: var(--text-lg);
    /* Ensure mobile zoom safety */
  }

  .container,
  .container-wide {
    padding: var(--space-4) var(--space-3);
  }
}

/* Landscape Phone Heights */
@media (max-height: 500px) and (orientation: landscape) {
  .main-content {
    padding-top: calc(var(--navbar-height) + var(--space-2));
  }

  .container,
  .container-wide {
    padding-top: var(--space-2);
    padding-bottom: var(--space-6);
  }
}

/* ——— Ambient Glows ——— */
.ambient-glow-1,
.ambient-glow-2 {
  position: fixed;
  border-radius: 50%;
  filter: blur(140px);
  z-index: -1;
  pointer-events: none;
  background: var(--brand-primary);
  opacity: 0.12;
}

:root[data-theme="light"] .ambient-glow-1,
:root[data-theme="light"] .ambient-glow-2 {
  opacity: 0.05;
}

.ambient-glow-1 {
  top: -10%;
  left: -5%;
  width: 40vw;
  height: 40vw;
}

.ambient-glow-2 {
  bottom: -10%;
  right: -5%;
  width: 50vw;
  height: 50vw;
  background: var(--color-info, #3B82F6);
}