:root {
    --primary-color: #5c6bc0;
    /* Blueberry Purple */
    --secondary-color: #66bb6a;
    /* Leaf Green */
    --bg-light: #fdfbf7;
    --text-dark: #2c3e50;
    --white: #ffffff;
}

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

body {
    font-family: 'Zen Kaku Gothic New', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 60px;
    /* Adjust height as needed */
    width: auto;
    margin-right: 10px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 1.5rem;
}

nav ul li a {
    text-decoration: none;
    color: var(--text-dark);
    font-size: 0.9rem;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    height: 80vh;
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)),
        url('https://images.unsplash.com/photo-1498557850523-fd3d118b962e?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--secondary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 50px;
    margin-top: 1.5rem;
    font-weight: 700;
    transition: transform 0.3s;
}

.btn:hover {
    transform: scale(1.05);
}

/* Content Sections */
.content-section {
    padding: 5rem 10%;
    text-align: center;
}

.bg-light {
    background-color: var(--bg-light);
}

h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 0.5rem;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: var(--secondary-color);
}

/* Calendar Grid */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.month-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.month-card.active {
    border: 2px solid var(--secondary-color);
    background: #e8f5e9;
}

/* LINE Box */
.line-box {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.map-link {
    display: inline-block;
    padding: 1rem 2rem;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    transition: all 0.3s;
}

.map-link:hover {
    background: var(--primary-color);
    color: var(--white);
}

.line-btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: #06c755;
    /* LINE Green */
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    font-weight: 700;
}

footer {
    padding: 2rem;
    background: var(--text-dark);
    color: var(--white);
    text-align: center;
    font-size: 0.8rem;
}

@media (max-width: 768px) {
    .calendar-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2rem;
    }
}