/* ==========================================================================
   Gold Analytica - ログイン画面CSS
   既存デザインと調和するセキュリティ画面
   ========================================================================== */

/* ログイン画面全体のラッパー */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d30 100%);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ログインカードコンテナ */
.login-container {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 48px 40px;
    max-width: 420px;
    width: 90%;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    animation: loginFadeIn 0.6s ease-out;
}

/* フェードインアニメーション */
@keyframes loginFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ログインヘッダー */
.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-title {
    color: #fff;
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-subtitle {
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
    margin: 0;
}

/* ログインフォーム */
.login-form {
    margin-bottom: 24px;
}

.login-form-group {
    margin-bottom: 20px;
}

.login-label {
    display: block;
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
}

.login-input {
    width: 100%;
    height: 48px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    color: #fff;
    font-size: 16px;
    padding: 0 16px;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.login-input:focus {
    outline: none;
    border-color: #ffd700;
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

.login-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

/* ログインボタン */
.login-button {
    width: 100%;
    height: 48px;
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    border: none;
    border-radius: 8px;
    color: #000;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.login-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(255, 215, 0, 0.3);
}

.login-button:active {
    transform: translateY(0);
}

/* エラーメッセージ */
.login-error {
    background: rgba(255, 59, 48, 0.1);
    border: 1px solid rgba(255, 59, 48, 0.3);
    color: #ff6b6b;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 20px;
    animation: errorShake 0.5s ease-in-out;
}

@keyframes errorShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* セキュリティ情報 */
.login-security {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.security-icon {
    font-size: 20px;
    margin-bottom: 8px;
    display: block;
}

.security-text {
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
    line-height: 1.4;
}

/* レスポンシブ対応 */
@media (max-width: 480px) {
    .login-container {
        padding: 32px 24px;
        margin: 20px;
    }
    
    .login-title {
        font-size: 24px;
    }
    
    .login-input,
    .login-button {
        height: 44px;
    }
}