@charset "utf-8";

/* 全体の基本設定 */
body {
    margin: 0;
    padding: 0;
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    background: linear-gradient(180deg, #f0f4f8 0%, #ffffff 100%);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    color: #2c3e50;
}

/* ================================
   ヘッダー（夏空グラデーション）
   ================================ */
.site-header {
    background: linear-gradient(90deg, #29b6f6 0%, #0288d1 100%);
    color: #ffffff;
    padding: 15px 0;
    box-shadow: 0 4px 15px rgba(0, 136, 209, 0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.site-title {
    margin: 0;
    font-size: 26px;
    font-weight: 800;
    letter-spacing: 2px;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.1);
    color: #ffffff;
}

.login-status {
    font-size: 14px;
    margin-right: 5px;
    color: #ffffff;
    font-weight: bold;
}

.btn-outline {
    color: #ffffff;
    text-decoration: none;
    border: 2px solid #ffffff;
    padding: 8px 18px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.15);
    font-size: 14px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background-color: #ffffff;
    color: #0288d1;
    transform: translateY(-1px);
}

/* ================================
   フッター（砂浜・波打ち際イメージ）
   ================================ */
.site-footer {
    background: linear-gradient(135deg, #e1f5fe 0%, #b3e5fc 100%);
    color: #0277bd;
    text-align: center;
    padding: 30px 0;
    margin-top: auto;
}

.footer-inner p {
    margin: 0;
    color: #0277bd; 
    font-size: 13px;
    font-weight: 600;
}