/**
 * Jyot Institute of Teachers Training (JITT)
 * Layout Architecture: Header, Navigation, Grids & Footer
 * File: assets/css/layout.css
 */

/* ==========================================================================
   Utility Top Bar
   ========================================================================== */
.top-bar {
  background-color: var(--color-primary-dark);
  color: var(--color-text-inverse-muted);
  font-size: 0.8125rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.top-bar-left,
.top-bar-right {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex-wrap: wrap;
}

.top-bar-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-inverse-muted);
  text-decoration: none;
}

.top-bar-item a {
  color: var(--color-text-inverse-muted);
}

.top-bar-item a:hover {
  color: var(--color-accent-light);
}

.top-bar-item svg {
  width: 14px;
  height: 14px;
  color: var(--color-accent-light);
  flex-shrink: 0;
}

.top-bar-badge {
  background-color: rgba(217, 119, 6, 0.2);
  color: var(--color-accent-light);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: var(--fw-semibold);
}

/* ==========================================================================
   Primary Header & Sticky Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: var(--z-sticky);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-md);
  background-color: rgba(255, 255, 255, 0.99);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  transition: height var(--transition-normal);
}

.site-header.is-scrolled .navbar {
  height: 68px;
}

/* Brand Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.brand-logo-img {
  width: 52px;
  height: 52px;
  max-height: 52px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.brand-logo:hover .brand-logo-img {
  transform: scale(1.05);
}

.brand-logo-fallback {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.brand-symbol {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.brand-symbol svg {
  width: 26px;
  height: 26px;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-family-heading);
  font-size: 1.35rem;
  font-weight: var(--fw-extrabold);
  color: var(--color-primary);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.brand-tagline {
  font-size: 0.72rem;
  font-weight: var(--fw-semibold);
  color: var(--color-secondary-dark);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2px;
}

/* Navigation Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.65rem 0.95rem;
  font-family: var(--font-family-body);
  font-size: 0.9375rem;
  font-weight: var(--fw-semibold);
  color: var(--color-text-heading);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-item.is-active > .nav-link {
  color: var(--color-primary);
  background-color: var(--color-bg-subtle);
}

.nav-link svg.dropdown-arrow {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link svg.dropdown-arrow {
  transform: rotate(180deg);
}

/* Desktop Dropdown Menus */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 260px;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2);
  margin-top: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: var(--z-sticky);
}

.dropdown-menu.dropdown-wide {
  width: 320px;
}

.nav-item:hover > .dropdown-menu,
.nav-item:focus-within > .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  color: var(--color-text-heading);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: var(--fw-medium);
  transition: all var(--transition-fast);
}

.dropdown-item:hover,
.dropdown-item:focus-visible {
  background-color: var(--color-primary-surface);
  color: var(--color-primary);
}

.dropdown-item-content {
  display: flex;
  flex-direction: column;
}

.dropdown-item-title {
  font-weight: var(--fw-semibold);
  line-height: 1.25;
}

.dropdown-item-desc {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

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

/* Hamburger Toggle Button */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-bg-subtle);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  padding: 0;
}

.menu-toggle-bar {
  width: 20px;
  height: 2px;
  background-color: currentColor;
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.menu-toggle-bar:not(:last-child) {
  margin-bottom: 5px;
}

.menu-toggle.is-active .menu-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-active .menu-toggle-bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-active .menu-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   Grids & Layout Helpers
   ========================================================================== */
.grid {
  display: grid;
  gap: var(--space-6);
}

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

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

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

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

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

/* ==========================================================================
   Footer Layout
   ========================================================================== */
.site-footer {
  background-color: var(--color-bg-dark);
  color: var(--color-text-inverse-muted);
  padding-top: var(--space-16);
  border-top: 4px solid var(--color-secondary);
}

.footer-main {
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1.4fr 2fr;
  gap: var(--space-10);
}

.footer-col h4 {
  color: var(--color-text-inverse);
  font-size: 1.125rem;
  margin-bottom: var(--space-6);
  position: relative;
  padding-bottom: var(--space-2);
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background-color: var(--color-accent);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.footer-logo-img {
  width: 54px;
  height: 54px;
  object-fit: contain;
  flex-shrink: 0;
  background: #ffffff;
  border-radius: 50%;
  padding: 2px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  transition: transform var(--transition-fast);
}

.footer-brand:hover .footer-logo-img {
  transform: scale(1.05);
}

.footer-brand-text {
  display: flex;
  flex-direction: column;
}

.footer-brand .brand-name {
  color: var(--color-text-inverse);
}

.footer-brand-desc {
  color: var(--color-text-inverse-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
  margin-bottom: var(--space-5);
}

.footer-links li {
  margin-bottom: var(--space-3);
}

.footer-links a {
  color: var(--color-text-inverse-muted);
  font-size: 0.9375rem;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent-light);
  transform: translateX(4px);
}

.footer-location-block {
  margin-bottom: var(--space-5);
  font-size: 0.875rem;
  line-height: 1.6;
}

.footer-location-title {
  font-weight: var(--fw-bold);
  color: var(--color-text-inverse);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-1);
}

.footer-location-title svg {
  color: var(--color-accent);
  width: 16px;
  height: 16px;
}

.footer-contact-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-inverse-muted);
  font-size: 0.875rem;
  margin-top: var(--space-2);
}

.footer-contact-link:hover {
  color: var(--color-accent-light);
}

.footer-contact-link svg {
  width: 14px;
  height: 14px;
  color: var(--color-secondary-light);
}

/* Footer Bottom Bar */
.footer-bottom {
  padding: var(--space-6) 0;
  font-size: 0.8125rem;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-legal-links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

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

.footer-legal-links a:hover {
  color: var(--color-text-inverse);
  text-decoration: underline;
}