/* =================================
   基本設定 & 変数
==================================== */
:root {
    --primary-color: #1a73e8;
    --primary-color-hover: #185abc;
    --text-color-primary: #202124;
    --text-color-secondary: #5f6368;
    --bg-color: #f0f2f5;
    --card-bg-color: #ffffff;
    --border-color: #dadce0;
    --error-color: #d93025;
}

* {
    box-sizing: border-box;
}

html, body {
    height: 100%;
    margin: 0;
    font-family: 'Hiragino Kaku Gothic ProN', /* ... (フォント指定) ... */
    background-color: var(--bg-color);
    color: var(--text-color-primary);
    overflow: hidden;
}


/* =================================
   ページ全体のレイアウト
==================================== */
body {
    display: flex;
    flex-direction: column;

}

.login-page-wrapper {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    /*justify-content: center;*/
    align-items: center;
    padding: 24px;
    overflow-y: auto;
    background-color: var(--bg-color);
}
/* =================================
   フッター
==================================== */
.login-footer {
    flex-shrink: 0; /* ★フッターが縮まないようにする */
    padding: 16px;
    text-align: center;
    font-size: 12px;
    color: var(--text-color-secondary);
    background-color: var(--bg-color); /* 背景色をbodyと合わせる */
}

/* =================================
   コンテナ & カード
==================================== */
.login-card {
    width: 380px;
    max-width: 100%;
    background-color: var(--card-bg-color);
    padding: 32px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    text-align: center;
    flex-shrink: 0;
}
h1 { font-size: 24px; margin-top: 0; }
.subtitle { color: var(--text-color-secondary); margin-bottom: 32px; }
#login-form { text-align: left; }
.input-group { margin-bottom: 20px; }
.input-group label { display: block; font-size: 14px; font-weight: bold; margin-bottom: 8px; }
.input-group input { width: 100%; padding: 12px; border: 1px solid var(--border-color); border-radius: 8px; font-size: 16px; }
.input-group input:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 2px #d2e3fc; }
.error-message { color: var(--error-color); font-size: 14px; min-height: 20px; margin-bottom: 16px; text-align: center; }
.btn { width: 100%; padding: 12px; border: none; border-radius: 8px; font-size: 16px; font-weight: bold; cursor: pointer; transition: background-color 0.2s, box-shadow 0.2s; text-align: center; text-decoration: none; }
.btn-primary { background-color: var(--primary-color); color: white; }
.btn-primary:hover { background-color: var(--primary-color-hover); box-shadow: 0 2px 4px rgba(0,0,0,0.1); }
.btn-google { background-color: white; color: var(--text-color-secondary); border: 1px solid var(--border-color); display: flex; align-items: center; justify-content: center; gap: 12px; }
.btn-google:hover { background-color: #f8f9fa; }
.btn-google img { width: 18px; height: 18px; }
.divider { display: flex; align-items: center; text-align: center; color: var(--text-color-secondary); font-size: 13px; margin: 24px 0; }
.divider::before, .divider::after { content: ''; flex: 1; border-bottom: 1px solid var(--border-color); }
.divider::before { margin-right: 1em; }
.divider::after { margin-left: 1em; }
.links { margin-top: 24px; }
.links a { color: var(--primary-color); text-decoration: none; font-size: 14px; }
.links a:hover { text-decoration: underline; }
.signup-link { text-align: center; margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border-color); font-size: 14px; color: var(--text-color-secondary); }
.signup-link a { color: var(--primary-color); font-weight: bold; text-decoration: none; }
.signup-link a:hover { text-decoration: underline; }

.tab-nav {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.tab-btn {
    padding: 10px 16px;
    border: none;
    background-color: transparent;
    cursor: pointer;
    font-size: 16px;
    color: var(--text-color-secondary);
    border-bottom: 3px solid transparent;
    margin-bottom: -1px; /* 下線を親のborderに重ねる */
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    font-weight: bold;
}

.tab-content {
    display: none; /* デフォルトで非表示 */
}

.tab-content.active {
    display: block; /* activeクラスが付いたものだけ表示 */
}


/* =================================
   推奨環境セクション
==================================== */

.tab-content#tab-environment {
    text-align: left;
    padding: 16px;
}

.tab-content#tab-environment .env-group {
    margin-bottom: 12px;
}
.tab-content#tab-environment .env-group:last-child {
    margin-bottom: 0;
}
.tab-content#tab-environment h3 {
    font-size: 14px;
    margin: 0;
    color: var(--text-color-secondary);
}
.tab-content#tab-environment p {
    font-size: 14px;
    margin: 4px 0 0 0;
    line-height: 1.6;
    padding-left: 1em;
}

/* タブコンテンツ共通のpadding */
.tab-content#tab-login,
.tab-content#tab-environment {
    /*padding: 0 32px 32px 32px;*/
}

/* =================================
   フォーム要素
==================================== */
#login-form {
    text-align: left;
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    font-size: 14px;
    font-weight: bold;
    margin-bottom: 8px;
}

.input-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px #d2e3fc;
}

.error-message {
    color: var(--error-color);
    font-size: 14px;
    min-height: 20px;
    margin-bottom: 16px;
    text-align: center;
}

/* =================================
   ボタン
==================================== */
.btn {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s, box-shadow 0.2s;
    text-align: center;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}
.btn-primary:hover {
    background-color: var(--primary-color-hover);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.btn-primary:disabled {
    background-color: #e8eaed;
    color: #bdc1c6;
    cursor: not-allowed;
    box-shadow: none;
}

.btn-disabled {
    background-color: #e8eaed;
    color: #bdc1c6;
    cursor: not-allowed;
}
.btn-google {
    background-color: white;
    color: var(--text-color-secondary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}
.btn-google:hover {
    background-color: #f8f9fa;
}
.btn-google img {
    width: 18px;
    height: 18px;
}

/* =================================
   区切り線 & リンク
==================================== */
.divider {
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--text-color-secondary);
    font-size: 13px;
    margin: 24px 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.divider::before {
    margin-right: 1em;
}

.divider::after {
    margin-left: 1em;
}

.links {
    margin-top: 24px;
}

.links a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
}
.links a:hover {
    text-decoration: underline;
}

/* =================================
   新規登録へのリンク
==================================== */
.signup-link {
    text-align: center;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    font-size: 14px;
    color: var(--text-color-secondary);
}

.signup-link a {
    color: var(--primary-color);
    font-weight: bold;
    text-decoration: none;
}

.signup-link a:hover {
    text-decoration: underline;
}

/* =================================
   ログアウトメッセージ
==================================== */
.logout-message {
    background-color: #e8f5e9; /* 明るい緑 */
    color: #2e7d32; /* 濃い緑 */
    padding: 10px;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 12px;
    border: 1px solid #c8e6c9;
    font-weight: bold;
}

/* =================================
   ロゴ
==================================== */
.logo {
    position: absolute;
    top: 10px;
    left: 10px;
     img {
        height: 43px;
        width: auto;
        padding-left: 72px;
	left: 0;
    }
}