/* --- 0. Global Reset & Variables --- */
:root {
    /* Color Palette */
    --bg-color: #E3DFD4;
    --card-bg-color: #F7F5F2;
    /* Corrected text color for accessibility */
    --text-color: #3D3522; 
    --accent-color: #E871B5;
    --accent-hover-color: #d15fa3;

    /* Typography System */
    --h1-size: 2.286rem;
    --h2-size: 2.088rem;
    --h3-size: 1.8074rem;
    --h4-size: 1.628rem;
    --h5-size: 1.44rem;
    --h6-size: 1.2rem;
    --p-size: 1rem;

    /* Spacing & Layout */
    --spacing-unit: 1rem;
    --border-radius: 8px;
    --card-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    --card-shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* --- 1. Base Styles & Typography --- */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Georgia', 'Times New Roman', Times, serif;
    font-weight: 700;
    margin-bottom: var(--spacing-unit);
    line-height: 1.2;
}

h1 { font-size: var(--h1-size); }
h2 { font-size: var(--h2-size); }
h3 { font-size: var(--h3-size); }
p { 
    font-size: var(--p-size); 
    margin-bottom: var(--spacing-unit);
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    text-decoration: underline;
    color: var(--accent-hover-color);
}

/* --- 2. Layout & Structural Rules --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: calc(var(--spacing-unit) * 2);
}

.main-header {
    text-align: center;
    padding: calc(var(--spacing-unit) * 2) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.main-header h1 {
    color: var(--text-color);
    opacity: 0.8;
}

/* Search Container */
.search-container {
    display: flex;
    justify-content: center;
    gap: var(--spacing-unit);
    margin-bottom: calc(var(--spacing-unit) * 3);
}

#search-input {
    width: 100%;
    max-width: 400px;
    padding: calc(var(--spacing-unit) * 0.75);
    border: 1px solid #ccc;
    border-radius: var(--border-radius);
    font-size: var(--p-size);
    transition: all 0.3s ease;
}

#search-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 5px var(--accent-color);
}

.btn {
    padding: calc(var(--spacing-unit) * 0.75) calc(var(--spacing-unit) * 1.5);
    border: none;
    border-radius: var(--border-radius);
    background-color: var(--accent-color);
    color: white;
    font-size: var(--p-size);
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.btn:hover {
    background-color: var(--accent-hover-color);
    transform: translateY(-2px);
}

/* News Grid Layout */
.news-grid {
    display: grid;
    gap: calc(var(--spacing-unit) * 2);
    /* Desktop: 3-column grid */
    grid-template-columns: repeat(3, 1fr);
}

/* --- 3. Component Styles (News Card) --- */
.news-card {
    background-color: var(--card-bg-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
}

.news-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.news-card-content {
    padding: var(--spacing-unit);
    display: flex;
    flex-direction: column;
    flex-grow: 1; /* Allows footer to stick to bottom */
}

.news-card-content h3 {
    font-size: var(--h5-size);
}

.news-card-content p {
    flex-grow: 1; /* Pushes footer down */
}

.news-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: #777;
    border-top: 1px solid #eee;
    padding-top: var(--spacing-unit);
    margin-top: var(--spacing-unit);
}

.category-badge {
    background-color: var(--accent-color);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: bold;
}

/* Pagination */
.pagination-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: calc(var(--spacing-unit) * 0.5);
    margin-top: calc(var(--spacing-unit) * 3);
}

.pagination-controls button {
    background-color: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    font-weight: bold;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pagination-controls button:hover,
.pagination-controls button.active {
    background-color: var(--accent-color);
    color: white;
}

.pagination-controls button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* --- 4. Admin Panel Specific Styles --- */
.admin-container {
    padding: var(--spacing-unit);
}

.admin-controls {
    background-color: var(--card-bg-color);
    padding: var(--spacing-unit);
    margin-bottom: calc(var(--spacing-unit) * 2);
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
}

.admin-controls h2 {
    border-bottom: 1px solid #ddd;
    padding-bottom: var(--spacing-unit);
}

#add-article-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-unit);
    margin-top: var(--spacing-unit);
}

#add-article-form input,
#add-article-form textarea {
    width: 100%;
    padding: calc(var(--spacing-unit) * 0.5);
    border: 1px solid #ccc;
    border-radius: 4px;
}
#add-article-form textarea {
    grid-column: 1 / -1; /* Span across both columns */
    resize: vertical;
}

#add-article-form .form-actions {
    grid-column: 1 / -1;
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-unit);
}

#admin-article-list ul {
    list-style-type: none;
}

#admin-article-list li {
    background-color: var(--card-bg-color);
    padding: var(--spacing-unit);
    margin-bottom: var(--spacing-unit);
    border-radius: var(--border-radius);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--card-shadow);
}

.article-actions button {
    margin-left: var(--spacing-unit);
}

.btn-delete {
    background-color: #dc3545;
}
.btn-delete:hover {
    background-color: #c82333;
}
.btn-save {
    background-color: #28a745;
}
.btn-save:hover {
    background-color: #218838;
}

/* --- 5. Responsive Breakpoints --- */

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

/* Mobile: Single-column layout */
@media (max-width: 768px) {
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .search-container {
        flex-direction: column;
    }

    #add-article-form {
        grid-template-columns: 1fr;
    }

    #add-article-form textarea,
    #add-article-form .form-actions {
        grid-column: 1 / 1;
    }

    #admin-article-list li {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-unit);
    }
}