/* --- Google Font Import --- */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700&display=swap');

/* --- CSS Variables --- */
:root {
    --primary-color: #2563eb;
    --secondary-color: #111827;
    --accent-color: #16a34a;
    --background-color: #f9fafb;
    --surface-color: #ffffff;
    --text-color: #374151;
    --heading-color: #111827;
    --border-color: #e5e7eb;
    --font-family: 'Montserrat', sans-serif;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --border-radius: 0.5rem;
}

/* --- Global Resets & Base Styles --- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.7;
    font-size: 16px;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    color: var(--heading-color);
    line-height: 1.3;
    margin-bottom: 1rem;
    font-weight: 700;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

p {
    margin-bottom: 1rem;
}

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

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

ul, ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

/* --- Utility Classes --- */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 0;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: #fff;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.btn:hover {
    background-color: #1d4ed8;
    text-decoration: none;
    transform: translateY(-2px);
}

.card {
    background-color: var(--surface-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

/* --- Header & Navigation --- */
.site-header {
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.site-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--heading-color);
}

.site-title a {
    color: inherit;
}
.site-title a:hover {
    text-decoration: none;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

.main-nav a {
    font-weight: 600;
    padding: 0.5rem 0;
    position: relative;
    color: var(--text-color);
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

/* --- Main Layout --- */
.main-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

/* --- Hero Section --- */
.hero {
    text-align: center;
    padding: 3rem 1rem;
    background-color: var(--surface-color);
    border-radius: var(--border-radius);
}

.hero h1 {
    margin-bottom: 0.5rem;
}

.hero p {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 1.5rem auto;
}

/* --- Blog Articles Section --- */
.section-title {
    text-align: center;
    margin-bottom: 2rem;
}

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

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

.article-card-content {
    padding: 1.5rem;
}

.article-card-content h3 {
    margin-bottom: 0.5rem;
}

.article-card-content a {
    color: var(--heading-color);
}
.article-card-content a:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.article-card-content .read-more {
    display: inline-block;
    margin-top: 1rem;
    font-weight: 600;
}

/* --- Sidebar --- */
.sidebar-widget {
    background-color: var(--surface-color);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.sidebar-widget h4 {
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.sidebar-widget ul {
    list-style: none;
    padding: 0;
}

.sidebar-widget li {
    margin-bottom: 0.75rem;
}

.sidebar-widget a {
    font-weight: 600;
}

/* --- Footer --- */
.site-footer {
    background-color: var(--secondary-color);
    color: #d1d5db;
    padding: 2rem 0;
    margin-top: 2rem;
}

.footer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
}

.footer-links {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.footer-links a {
    color: #d1d5db;
}

.footer-links a:hover {
    color: #fff;
}

/* --- Article Page Specifics --- */
.article-full {
    background: var(--surface-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.article-header {
    text-align: center;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
}

.article-meta {
    color: #6b7280;
    margin-top: 0.5rem;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin: 1.5rem 0;
}

.article-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 1rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: #6b7280;
}

.cta-section {
    background-color: var(--background-color);
    border: 2px dashed var(--primary-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    margin-top: 2rem;
}

/* --- Offers Page --- */
.offers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.supermarket-card {
    background-color: var(--surface-color);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease;
}

.supermarket-card:hover {
    transform: translateY(-5px);
}

.supermarket-logo {
    width: 100px;
    height: 100px;
    margin: 0 auto 1rem auto;
    background-color: #f3f4f6;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--heading-color);
    border: 2px solid var(--border-color);
}

/* --- Contact Page --- */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-size: 1rem;
}
.contact-form textarea {
    min-height: 150px;
    resize: vertical;
}
.contact-form .btn {
    align-self: flex-start;
    border: none;
    cursor: pointer;
}
.contact-info p {
    margin-bottom: 0.5rem;
}

/* --- Media Queries for Responsive Design --- */

/* Tablet */
@media (min-width: 768px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .main-layout {
        grid-template-columns: 2fr 1fr;
    }
    .footer-container {
        flex-direction: row;
        justify-content: space-between;
    }
}

/* Desktop */
@media (min-width: 1024px) {
    .articles-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    h1 { font-size: 3rem; }
    .article-full {
        padding: 3rem;
    }
}