/* === VARIABLES & GLOBAL STYLES === */
:root {
    --bg-color: #fdfdfd;
    --surface-color: #ffffff;
    --primary-color: #005f73; /* A deep, classic teal */
    --primary-hover: #0a9396;
    --text-color: #333333;
    --text-muted: #666666;
    --border-color: #e0e0e0;
    --heading-font: 'Merriweather', serif;
    --body-font: 'Open Sans', sans-serif;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
    --border-radius: 6px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16.5px;
}

body {
    font-family: var(--body-font);
    line-height: 1.65;
    background-color: var(--bg-color);
    color: var(--text-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s ease-in-out;
}

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

h1, h2 {
    font-family: var(--heading-font);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-color);
}

h1 { font-size: 3rem; }
h2 { font-size: 1.5rem; }
p { margin-bottom: 1rem; color: var(--text-muted); }

/* === HEADER === */
.site-header {
    background-color: var(--surface-color);
    padding: 1.5rem 0;
    border-bottom: 2px solid var(--border-color);
    text-align: center;
}

.logo {
    font-family: var(--heading-font);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-color);
    letter-spacing: 1px;
}
.logo:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.tagline {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
    font-style: italic;
}

/* === INTRO SECTION === */
.intro {
    text-align: center;
    padding: 5rem 1rem;
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
}

.intro h1 {
    margin-bottom: 1.5rem;
}

.intro p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
}

/* === OFFERS GRID === */
.offers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 2rem;
    padding: 4rem 0;
}

.offer-card {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.offer-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.offer-card h2 {
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
    display: inline-block;
}

.offer-card p {
    flex-grow: 1;
    font-size: 1rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: #fff;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.95rem;
    text-align: center;
    transition: background-color 0.2s, transform 0.2s;
    border: none;
    cursor: pointer;
    margin-top: 1rem;
    align-self: flex-start;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn:hover {
    background-color: var(--primary-hover);
    color: #fff;
    text-decoration: none;
    transform: scale(1.05);
}

/* === FOOTER === */
.site-footer {
    background-color: #333;
    color: #ccc;
    text-align: center;
    padding: 2.5rem 0;
    margin-top: 2rem;
    font-size: 0.95rem;
}

.site-footer a {
    color: #fff;
    font-weight: 600;
}

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

.site-footer p {
    margin: 0.25rem 0;
    color: #ccc;
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 768px) {
    h1 { font-size: 2.2rem; }
    .intro { padding: 3rem 1rem; }
    .offers-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .container {
        padding: 0 1rem;
    }
}