/**
 * Divyansh Educational Foundation - Layout
 * Container, grids, sections, navigation, footer
 * Extracted from style.css (deduplicated)
 */

/* ============================================
   Layout Components
   ============================================ */
.container {
    max-width: var(--container-max-width, 1280px);
    margin: 0 auto;
    padding: 0 var(--container-padding, 1rem);
    width: 100%;
}

.main-content {
    flex: 1;
    min-height: calc(100vh - 200px);
}

/* ============================================
   Top Bar
   ============================================ */
.top-bar {
    background-color: var(--primary);
    color: var(--primary-foreground);
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.top-bar-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

@media (min-width: 640px) {
    .top-bar-content {
        flex-direction: row;
    }
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.top-bar-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-foreground);
    transition: opacity 0.2s;
}

.top-bar-link:hover {
    opacity: 0.8;
}

.top-bar-right {
    font-size: 0.75rem;
}

@media (min-width: 640px) {
    .top-bar-right {
        font-size: 0.875rem;
    }
}

/* ============================================
   Main Header & Navigation
   ============================================ */
.main-header {
    background-color: var(--card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-img {
    height: 3.5rem;
    width: 3.5rem;
    object-fit: contain;
}

@media (min-width: 640px) {
    .logo-img {
        height: 4rem;
        width: 4rem;
    }
}

.logo-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary);
}

@media (min-width: 640px) {
    .logo-title {
        font-size: 1.25rem;
    }
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--muted-foreground);
}

@media (min-width: 640px) {
    .logo-subtitle {
        font-size: 0.875rem;
    }
}

/* Desktop Navigation */
.nav-links {
    display: none;
    align-items: center;
    gap: 0.25rem;
}

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

.nav-link {
    position: relative;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    color: var(--foreground);
    transition: color 0.2s, background-color 0.2s;
    font-size: 0.875rem;
}

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

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

.btn-admin {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--primary);
    color: var(--primary-foreground);
    border-radius: var(--radius);
    transition: background-color 0.2s;
}

.btn-admin:hover,
.nav-link.btn-admin:hover {
    background-color: rgba(184, 92, 56, 0.9);
    color: #ffffff;
}

.btn-admin-mobile:hover,
.mobile-nav-link.btn-admin-mobile:hover {
    color: #ffffff;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: flex;
    padding: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
    border-radius: var(--radius);
    transition: background-color 0.2s;
}

.mobile-menu-btn:hover {
    background-color: var(--muted);
}

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

/* Mobile Navigation */
.mobile-nav {
    display: none;
    padding: 1rem;
    border-top: 1px solid var(--border);
}

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

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

.mobile-nav-link {
    display: block;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    transition: background-color 0.2s;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    background-color: var(--muted);
    color: var(--primary);
}

.btn-admin-mobile {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin: 0.5rem 1rem;
    padding: 0.75rem;
    background-color: var(--primary);
    color: var(--primary-foreground);
    border-radius: var(--radius);
}

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

.footer-content {
    padding: 3rem 1rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.footer-title {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.footer-text {
    font-size: 0.875rem;
    color: var(--muted-foreground);
    line-height: 1.6;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--muted-foreground);
    transition: color 0.2s;
}

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

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--muted-foreground);
}

.footer-contact svg {
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.footer-bottom {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 0.875rem;
    color: var(--muted-foreground);
}

.footer-bottom p {
    margin-top: 0.25rem;
}

/* ============================================
   Section Styles
   ============================================ */
.section {
    padding: 3rem 1rem;
}

.section-hero {
    background: linear-gradient(135deg, rgba(184, 92, 56, 0.1), var(--background), rgba(228, 168, 83, 0.1));
    padding: 4rem 1rem 3rem;
}

.section-card {
    background-color: var(--card);
    padding: 3rem 1rem;
}

.section-primary {
    background: linear-gradient(135deg, var(--primary), rgba(184, 92, 56, 0.8));
    color: var(--primary-foreground);
    padding: 3rem 1rem;
}

.section-title {
    font-size: clamp(1.875rem, 4vw, 3rem);
    margin-bottom: 1rem;
    color: var(--primary);
    text-align: center;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--muted-foreground);
    text-align: center;
    max-width: 42rem;
    margin: 0 auto 3rem;
}

/* ============================================
   Grid Layouts (Single Definition — Deduplicated)
   ============================================ */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@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 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

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

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