/**
 * 会員管理画面 共通CSS
 * member/member_admin/ 配下のページで使用
 * 
 * 作成日: 2025-10-15
 * 目的: CSS共通化によるコード削減とメンテナンス性向上
 */

/* ================================================
   ユニバーサルリセット
================================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ================================================
   ベーススタイル
================================================ */
body {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 50%, #1a1a1a 100%);
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
    color: #ffffff;
    padding: 5px 5px;
    line-height: 1.6;
}

/* ================================================
   コンテナ
================================================ */
.container {
    max-width: 800px;
    margin: 0 auto;
}

/* ================================================
   トップナビゲーション（戻るボタン + HP確認）
================================================ */
.top-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
    margin-bottom: 30px;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
}

/* 戻るボタン */
.back-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    text-decoration: none;
    color: #fff;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    transition: all 0.3s ease;
}

.back-button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* HP確認ボタン */
.hp-check {
    text-align: right;
}

.hp-check a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9em;
    padding: 12px 20px;
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.hp-check a:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* ================================================
   ヘッダー（タイトル・サブタイトル）
================================================ */
.header {
    text-align: center;
    margin-bottom: 40px;
    color: white;
}

.header h1 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.header p {
    font-size: 16px;
    opacity: 0.9;
    font-weight: 300;
}

/* ================================================
   メッセージボックス
================================================ */
.error,
.message.error {
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid rgba(255, 107, 107, 0.3);
    color: #ff6b6b;
    padding: 15px;
    border-radius: 12px;
    margin-bottom: 20px;
    font-size: 14px;
}

.success,
.message.success {
    background: rgba(0, 199, 60, 0.1);
    border: 1px solid rgba(0, 199, 60, 0.3);
    color: #00c73c;
    padding: 15px;
    border-radius: 12px;
    margin-bottom: 20px;
    font-size: 14px;
}

.message.info {
    background: rgba(39, 163, 235, 0.1);
    border: 1px solid rgba(39, 163, 235, 0.3);
    color: #27a3eb;
    padding: 15px;
    border-radius: 12px;
    margin-bottom: 20px;
    font-size: 14px;
}

/* ================================================
   セクション/カード
================================================ */
.section {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 20px 5px;
    margin-bottom: 5px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ================================================
   ボタン共通
================================================ */
.btn-primary {
    padding: 12px 24px;
    background: linear-gradient(45deg, #00c73c, #00a32f);
    color: #fff;
    text-decoration: none;
    border: none;
    border-radius: 25px;
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 199, 60, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 199, 60, 0.4);
}

.btn-secondary {
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* ================================================
   ログインページ用スタイル
================================================ */
.login-container,
.register-container,
.verify-container {
    max-width: 450px;
    margin: 40px auto;
    padding: 40px 30px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ================================================
   レスポンシブ対応
================================================ */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .container {
        padding: 0 10px;
    }

    .header h1 {
        font-size: 20px;
    }

    .header p {
        font-size: 13px;
    }

    .top-buttons {
        padding: 0 5px;
        margin-bottom: 20px;
    }

    .login-container,
    .register-container,
    .verify-container {
        padding: 30px 20px;
        margin: 20px auto;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 18px;
    }

    .header p {
        font-size: 12px;
    }

    .btn-primary,
    .btn-secondary {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}