:root {
    --opanchu-pink: #ffc0cb;
    --opanchu-pink-dark: #ff9eb0;
    --opanchu-blue: #87ceeb;
    --opanchu-blue-dark: #5bb0d6;
}

body {
    background-color: #fffafb; /* ほんのりピンク */
    font-family: 'M PLUS Rounded 1c', 'Kosugi Maru', sans-serif;
    color: #555;
}

.text-opanchu-pink { color: var(--opanchu-pink-dark); }
.text-opanchu-blue { color: var(--opanchu-blue-dark); }
.bg-opanchu-pink { background-color: var(--opanchu-pink); }
.bg-opanchu-blue { background-color: var(--opanchu-blue); }

.btn-opanchu-blue {
    background-color: var(--opanchu-blue);
    border-color: var(--opanchu-blue);
    color: white;
    font-weight: bold;
    border-radius: 50px;
}
.btn-opanchu-blue:hover {
    background-color: var(--opanchu-blue-dark);
    color: white;
}

.hero-section {
    background: linear-gradient(180deg, var(--opanchu-pink) 0%, #fffafb 100%);
    border-bottom: 3px dashed white;
}

.section-title {
    border-left: 5px solid var(--opanchu-pink);
    padding-left: 15px;
    font-weight: bold;
}

.news-card {
    border: 2px solid #f0f0f0;
    border-radius: 15px;
    transition: transform 0.2s;
}
.news-card:hover {
    transform: translateY(-3px);
    border-color: var(--opanchu-pink);
}

.profile-card {
    border: 2px solid var(--opanchu-blue);
    border-radius: 20px;
    background-color: #f0f8ff;
}

.comment-form-card {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.opanchu-icon {
    font-size: 80px;
    animation: tremble 0.5s infinite alternate;
}

/* 震えるアニメーション */
@keyframes tremble {
    0% { transform: rotate(0deg) translateY(0); }
    25% { transform: rotate(2deg) translateY(1px); }
    50% { transform: rotate(0deg) translateY(0); }
    75% { transform: rotate(-2deg) translateY(1px); }
    100% { transform: rotate(0deg) translateY(0); }
}

.navbar-brand {
    font-size: 1.5rem;
}