/* ==========================================================================
   Mamoswine Layout Styles - Header, Navigation, Containers, Sidebars & Footer
   ========================================================================== */

/* Containers */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.container--wide {
  max-width: var(--container-wide);
}

/* Grids */
.grid {
  display: grid;
  gap: var(--space-5);
}

.grid-2 {
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}

.grid-3 {
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.grid-4 {
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Site Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal);
}

.site-header__topbar {
  background-color: var(--color-ice-tint);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-1) var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-muted);
  text-align: center;
}
.site-header__topbar a {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: underline;
}

.site-header__main {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-branding,
.site-branding__link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}
.site-branding:hover,
.site-branding__link:hover {
  text-decoration: none;
}

.site-logo-icon {
  width: 36px;
  height: 36px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.site-title {
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-ink);
  letter-spacing: -0.02em;
  margin-bottom: 0;
}

.site-tagline {
  font-size: var(--text-xs);
  color: var(--color-muted);
  display: none;
}
@media (min-width: 768px) {
  .site-tagline { display: block; }
}

/* Desktop Navigation */
.main-nav {
  display: none;
}

@media (min-width: 992px) {
  .main-nav {
    display: flex;
    align-items: center;
  }

  .nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--space-1);
  }

  .nav-menu > .menu-item {
    position: relative;
  }

  .nav-menu a {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-3);
    color: var(--color-ink);
    font-size: var(--text-sm);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-fast), color var(--transition-fast);
    white-space: nowrap;
  }

  /* Chevron indicator for desktop parent menu items */
  .nav-menu .menu-item-has-children > a {
    gap: 0.35rem;
  }
  .nav-menu .menu-item-has-children > a::after {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg) translateY(-2px);
    transition: transform var(--transition-fast);
    pointer-events: none;
    flex-shrink: 0;
  }

  .nav-menu a:hover,
  .nav-menu a:focus-visible,
  .nav-menu .menu-item:hover > a,
  .nav-menu .menu-item:focus-within > a {
    background-color: var(--color-ice-tint);
    color: var(--color-primary);
  }

  .nav-menu .menu-item:hover > a::after,
  .nav-menu .menu-item:focus-within > a::after {
    transform: rotate(-135deg) translateY(-1px);
  }

  .nav-menu .dropdown-toggle {
    display: none;
  }

  /* Dropdown Sub-menu */
  .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 250px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 25px -5px rgba(18, 34, 46, 0.12), 0 8px 10px -6px rgba(18, 34, 46, 0.08);
    list-style: none;
    padding: var(--space-2);
    margin: 0;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(8px);
    transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
    z-index: 1050;
  }

  /* Hover bridge prevents dropdown from closing during cursor movement */
  .sub-menu::before {
    content: '';
    position: absolute;
    top: -12px;
    left: 0;
    right: 0;
    height: 12px;
  }

  .menu-item-has-children:hover > .sub-menu,
  .menu-item-has-children:focus-within > .sub-menu,
  .menu-item-has-children.is-active > .sub-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(4px);
  }

  .sub-menu li {
    list-style: none;
  }

  .sub-menu a {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-ink);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
  }

  .sub-menu a:hover,
  .sub-menu a:focus-visible {
    background-color: var(--color-ice-tint);
    color: var(--color-primary);
    font-weight: 600;
    padding-left: calc(var(--space-3) + 4px);
  }
}

/* Header Action Controls (Search, CTA, Hamburger) */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.search-trigger-btn {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.search-trigger-btn:hover {
  background-color: var(--color-ice-tint);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.menu-toggle-btn {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-ink);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.menu-toggle-btn:hover {
  background-color: var(--color-ice-tint);
  border-color: var(--color-primary);
}

@media (min-width: 992px) {
  .menu-toggle-btn { display: none !important; }
  .hide-desktop { display: none !important; }
}

@media (max-width: 991px) {
  .hide-tablet-down { display: none !important; }
}

@media (max-width: 767px) {
  .hide-mobile { display: none !important; }
}

/* Mobile Offcanvas Drawer */
.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(18, 34, 46, 0.55);
  backdrop-filter: blur(4px);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}
.mobile-drawer-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 88%;
  max-width: 380px;
  background-color: var(--color-surface);
  box-shadow: -8px 0 24px rgba(18, 34, 46, 0.15);
  z-index: 2001;
  padding: var(--space-5);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
}
.mobile-drawer.is-open {
  transform: translateX(0);
}

.mobile-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.mobile-drawer__close {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-xl);
  color: var(--color-ink);
  cursor: pointer;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  line-height: 1;
  transition: all var(--transition-fast);
}
.mobile-drawer__close:hover {
  background-color: var(--color-danger);
  color: #FFFFFF;
  border-color: var(--color-danger);
}

.mobile-nav-menu {
  list-style: none;
  padding: 0;
  margin: 0;
}
.mobile-nav-menu > li {
  border-bottom: 1px solid var(--color-border-subtle);
  position: relative;
}
.mobile-nav-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.mobile-nav-menu a {
  display: block;
  padding: var(--space-3) 0;
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-ink);
  text-decoration: none;
  flex-grow: 1;
}
.mobile-nav-menu a:hover,
.mobile-nav-menu a:focus-visible {
  color: var(--color-primary);
}

.mobile-submenu-toggle {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-muted);
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  margin-left: var(--space-2);
}
.mobile-submenu-toggle svg {
  transition: transform var(--transition-fast);
}
.mobile-submenu-toggle[aria-expanded="true"] {
  background-color: var(--color-ice-tint);
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.mobile-submenu-toggle[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.mobile-nav-menu .sub-menu {
  list-style: none;
  padding: var(--space-2) var(--space-3);
  display: none;
  background-color: var(--color-ice-tint);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
  margin-top: -4px;
}
.mobile-nav-menu .sub-menu.is-expanded {
  display: block;
}
.mobile-nav-menu .sub-menu li {
  border-bottom: 1px solid rgba(14, 120, 155, 0.1);
  list-style: none;
}
.mobile-nav-menu .sub-menu li:last-child {
  border-bottom: none;
}
.mobile-nav-menu .sub-menu a {
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-ink);
}
.mobile-nav-menu .sub-menu a:hover {
  color: var(--color-primary);
  font-weight: 600;
}

/* Main Site Content Area */
.site-content {
  flex: 1 0 auto;
  padding-top: var(--space-6);
  padding-bottom: var(--space-8);
}

.layout-with-sidebar {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-7);
}
@media (min-width: 1024px) {
  .layout-with-sidebar {
    grid-template-columns: 1fr 340px;
  }
  .layout-with-sidebar--left {
    grid-template-columns: 340px 1fr;
  }
  .layout-with-sidebar--left .sidebar-area {
    order: -1;
  }
}

.sidebar-area {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.widget {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.widget-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 2px solid var(--color-ice-tint);
}

/* Site Footer */
.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.footer-top {
  padding-top: var(--space-8);
  padding-bottom: var(--space-7);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1.5fr repeat(3, 1fr);
  }
}

.footer-brand p {
  color: var(--color-muted);
  font-size: var(--text-sm);
  margin-top: var(--space-3);
}

.footer-column-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: var(--space-3);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li {
  margin-bottom: var(--space-2);
}
.footer-links a {
  color: var(--color-muted);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}
.footer-links a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
  background-color: var(--color-bg);
}

.footer-bottom__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-muted);
}
@media (min-width: 768px) {
  .footer-bottom__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-disclaimer {
  max-width: 760px;
  line-height: 1.5;
  margin-bottom: 0;
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-legal-links a {
  color: var(--color-muted);
}

/* Hero Section Responsive Layout */
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: center;
}
@media (min-width: 960px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: var(--space-7);
  }
}

.hero-showcase-card {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.hero-art-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 220px;
}

.hero-art-container img {
  max-height: 260px;
  width: auto;
  max-width: 100%;
  height: auto;
  aspect-ratio: 600 / 500;
  object-fit: contain;
  display: block;
  margin: 0 auto;
  transition: transform var(--transition-normal);
}
.hero-showcase-card:hover .hero-art-container img {
  transform: translateY(-4px) scale(1.02);
}

/* Tools Showcase Grid (10 Calculators & Checkers) */
.tools-showcase-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}
@media (min-width: 520px) {
  .tools-showcase-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 860px) {
  .tools-showcase-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (min-width: 1200px) {
  .tools-showcase-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}
.tools-showcase-grid > .card,
.tools-showcase-grid > article {
  height: 100%;
  display: flex;
  flex-direction: column;
}
.tools-showcase-grid > .card .card__desc {
  flex-grow: 1;
}
.tools-showcase-grid > .card .card__link {
  margin-top: auto;
}

/* Evolution Line Section (3 Steps) */
.evolution-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  align-items: stretch;
}
@media (min-width: 768px) {
  .evolution-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.evolution-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  text-align: center;
  display: flex;
  flex-direction: column;
  height: 100%;
  box-sizing: border-box;
}

.evolution-card--final {
  background-color: var(--color-ice-tint);
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.evolution-card__img-box {
  height: 110px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: var(--space-2) auto var(--space-3) auto;
  width: 100%;
}

.evolution-card__img-box img {
  max-height: 100px;
  max-width: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  margin: 0 auto;
  filter: drop-shadow(0 4px 10px rgba(14, 120, 155, 0.12));
}

/* Card Heights & Alignment Equalization */
.grid > .card,
.grid > .post-card,
.grid > article {
  height: 100%;
  display: flex;
  flex-direction: column;
  min-width: 0;
  box-sizing: border-box;
}

.grid > .card .card__desc,
.grid > .post-card .post-card__excerpt {
  flex-grow: 1;
}

.grid > .card .card__link,
.grid > .post-card .card__link {
  margin-top: auto;
}

/* Global Prevent Horizontal Overflow */
html, body {
  overflow-x: hidden;
  max-width: 100vw;
}
img, svg {
  max-width: 100%;
}